ВСПОМОГАТЕЛЬНОЕ УСТРОЙСТВО ДЛЯ НАСТРОЙКИ ОРИЕНТАЦИИ АНТЕННЫ И СПОСОБ УСТАНОВКИ АНТЕННОГО УСТРОЙСТВА

Предоставлено вспомогательное устройство для настройки ориентации антенны, которое позволяет любому работнику быстро и точно устанавливать антенное устройство. Антенное устройство (100) устанавливается временно. Дополнительно, на антенном устройстве (100) монтируется камера (200). Кроме того, вспомогательное устройство для настройки ориентации антенны включает в себя блок (420) детектирования интенсивности приема, который детектирует интенсивность приема радиоволн, принимаемых посредством антенного блока (110), блок (414) вычисления смещения, который вычисляет относительное угловое положение антенного блока (110) с использованием изображения, полученного посредством камеры (200), зафиксированной относительно антенного блока (110), и блок (430) записи интенсивности приема, который записывает относительное угловое положение антенного блока (110) и интенсивность приема в этом относительном угловом положении совместно друг с другом. 3 н. и 4 з.п. ф-лы, 18 ил.

Устройство изменения ориентации поля зрения головки самонаведения ракеты

Изобретение относится к устройствам для изменения ориентации поля зрения и может найти применение в бортовых координаторах цели (головках самонаведения) управляемых ракет. Сущность предлагаемого устройства для изменения ориентации поля зрения ГСН основана на выполнении несущей конструкция ГСН в виде шаровой опоры, установленной на вогнутое основание, в зазор между опорой и основанием введена магнитная жидкость, удерживаемая в зазоре парой магнитомягкий – заранее намагниченный, магнитотвердый материалы, фиксация осей системы координат ГСН относительно осей системы координат ракеты достигается выполнением пары шаровая опора – вогнутое основание по схеме шарнира равных угловых скоростей с центрирующими шариками, установленными в обойме в делительные канавки, выполненные симметрично в шаровой опоре и основании. Технический результат изобретения заключается в достижении линейности зависимости угла установки мгновенного поля зрения от углов отклонении оси подвеса в двух плоскостях при значительном ...

Механизм подъема антенн

Изобретение относится к приводным механизмам, а более конкретно к механизмам подъема антенн. Механизм подъема антенны содержит пульт дистанционного управления и устройство подъема антенны. В устройстве подъема антенны расположен привод с рычагом. На основании (1) крепятся две боковые стойки (2), два кронштейна (3) и кожух (12). В стойку (2) запрессован подшипник (4). Поворот антенны осуществляется электроприводом (5), прикрепленным с одной стороны к основанию (1) через кронштейны (3), с другой стороны к фланцу (6) через рычаг (7), который служит противовесом. К фланцу (6) крепятся две оси (8). Стойки (2) свинчены между собой упором (10) и задней стенкой (11). Фланец (6) выполнен П-образным, на нем установлена стенка (14). Электропривод (5) имеет возможность изменять расстояние между кронштейном (3) и фланцем (6), поворачивая его вокруг осей (8). Достигается упрощение конструкции. 5 ил.

Устройство преобразования углового перемещения антенны РЛС

Изобретение относится к области радиолокационной техники и может быть использовано в радиолокационных станциях, Технический результат - повышение точности преобразования углового перемещения антенны радиолокационной станции (РЛС) за счет компенсации кинематической погрешности информационной передачи датчиков и расширение функциональных возможностей. Устройство содержит датчик углового положения, редуктор, опорно-поворотное устройство, механически связанное с валом антенны, устройство опроса, датчик кода привязки к северу, постоянное запоминающее устройство, первое и второе вычислительные устройства. 4 ил.

АНТЕННА С МНОЖЕСТВОМ ОРИЕНТАЦИЙ ДЛЯ ТРАНСПОРТНОГО СРЕДСТВА И СИСТЕМА СВЯЗИ ТРАНСПОРТНОГО СРЕДСТВА

СПОСОБ УПРАВЛЕНИЯ ПОЛОЖЕНИЕМ ОСИ АНТЕННЫ БОРТОВОЙ РАДИОЛОКАЦИОННОЙ СТАНЦИИ ПРИ СОПРОВОЖДЕНИИ МАНЕВРИРУЮЩЕЙ ВОЗДУШНОЙ ЦЕЛИ

Изобретение относится к радиолокации и может быть использовано в радиолокационных станциях (РЛС) для непрерывной селекции, сопровождения интенсивно маневрирующей воздушной цели (МВЦ), в том числе информационного обеспечения процесса наведения летательного аппарата (ЛА). Техническим результатом заявленного изобретения является снижение ошибок управления приводом антенны РЛС ЛА по углу и угловой скорости при сопровождении МВЦ. В заявленном способе выполняют определение оптимальных, однозначно связанных с заданными параметрами привода антенны весовых коэффициентов ошибок управления приводом антенны по углу и угловой скорости рассчитанными через нахождение коэффициентов матрицы усиления сигналов управления, с учетом полной матрицы штрафов за точность в текущий момент времени управления. Расчет исключает трудоемкий, не оптимальный по результату поиск весов ошибок управления методом перебора (методом проб и ошибок). 12 ил.

Mobiler Empfänger für Satellitenfunk

Rotatable aerial with automatic alignment for max. signal - derives control voltage from receiver for differentiator and logic circuit

Automatic alignment circuit is for a rotatable aerial array in order to obtain max. reception. The directional characteristics of the aerial array is derived from the receiver and fed to a control circuit. The latter operates a servo motor which is mechanically coupled to the aerial. The control voltage derived from the receiver is fed into a differentiating network (4) and a logic circuit (5). The logic circuit is followed by a control circuit (6) which feeds the field windings of a servo motor (7). The aerial has a high gain with a parabolic mirror. The differentiating network is designed as a delta modulator.

Einrichtung zur Beseitigung der gegenseitigen Stoerung von Radargeraeten

Pivot arm operating drive for model vehicle or satellite receiver

The operating drive has an electric drive unit (5, 8), supplied from a current source (19), a radio receiver (20), coupled to an amplifier (7) and a setting element (15) between the drive unit and the pivot arm. The position of the pivot arm is detected via a LED (16) and a cooperating phototransistor (17), connected in circuit with the amplifier, for supplying the electric motor (5) with current in dependence on the supplied radio signal and the actual position of the pivot arm.

Ausrichtbare Antenne für ein Kommunikationssystem

Antrieb fuer Rotorantennen

Organe mit selektiver Absorption zur UEbertragung von elektrischer Energie

Automatische Antennenkippvorrichtung

Interferometer-Radiometer

A multiple orientation antenna for vehicle communication

Braring calculation

Gyratory parabolic antenna driving device

A gyratory device for mounting a parabolic antenna on a base or frame in which the gyratory part includes a tubular stationary part receiving a motor and drive connections within the tubular part, a sleeve surrounding the tubular part. Adjustable arms are provided to adjust the axis of the gyratory part relative to the rotary axis of the earth and to adjust the angle of the antenna on the sleeve.

Improvements in or relating to antenna systems and mounting means therefor

... 745,269. Radar; aerials. RAYTHEON MANUFACTURING CO. Sept. 25, 1953, No. 26515/53. Classes 40 (5) and 40 (7). An aerial construction suitable for use in a radar having separate transmitting and receiving units comprises an electrical ground plane 10 having two spaced apart apertures therein which form the mouths of two electromagnetic horns 11 and 12, the distance between the apertures being such with respect to the wavelength of operation that the aerials are isolated to a high degree from one another. The horns may be substantially matched to free space and excited in TE 01 mode with the electrostatic lines perpendicular to the line intersecting the axes of the horns. As shown, horn 12 is the transmitting horn and is excited by offset probe 13 surrounded by a sheath of dielectric 15. The probe is fed by coaxial line from magnetron oscillator 19 resiliently mounted between the horns. Horn 11 is used for reception and contains a pair of crystal rectifiers 33 forming a balanced mixer from ...

A rotable antenna apparatus

A rotatable antenna apparatus 10 comprises antenna signal processing means 35 mounted on a thermally conductive shaft 40 which is thermally coupled between the components of the signal processing means 35 and a heat sink 50 located within a fixed location relative to the rotatable shaft 40. An antenna assembly 30 is coupled to the signal processing means 35. A thermally conductive coupling structure 45 may be provided between the components and the shaft 40 which may include an elongate member which extends into a recess in the shaft and into a recess within a component interface structure 45. The component interface structure 45 may be formed in two parts which are connected together to sandwich a portion of the elongate member. A thermal paste may be applied between the elongate member and the component interface structure 45. The elongate member may comprise a heat pipe. A heat pad may be used between the one or more components and the component interface structure 45. The shaft 40 may ...

Rotating antenna array and rotary joint calibration system

An antenna system 1, or a method for calibrating an antenna system 1, comprises: generating an RF calibration signal 62 which is applied to an RF input port of one or more RF receiver units 4, not involving the antenna elements 3; measuring the response of the antenna system 1 to the calibration signal 62 and calculating the signal corrections and applying these signal corrections to subsequently received signals by the antenna and receiver system. The calibration system may be applied to a rotating antenna array involving modulated analogue optical signals being transmitted through an optical rotary joint 10 such that the calibration system corrects signal errors introduced by the said rotary joint during rotation over a 720° azimuth angle rotational range. The optical rotary joint 10 may have multiple optical channels transferred through a Dove or Abbe-Konig reversion prism. Mach-Zehnder (MZ) electrical-optical signal modulators 6 and opto-electrical converters 14 may be used. The antenna ...

A rotable antenna apparatus

A rotatable antenna apparatus comprising; a fixed unit 20 for attachment of the apparatus to an external structure, and a rotatable unit 60 mounted on the fixed unit and comprising an aerial assembly 65 and processing circuitry 65 coupled to the antenna assembly for performing signal processing operations. An interface unit is coupled to both the fixed unit and the rotatable unit, and is used to route a cable to provide a wired connection from the fixed unit to the processing circuitry. The interface unit includes a cable housing 50 within which a length of the cable is enclosed in a coiled arrangement. A control mechanism constrains the amount to which the length of cable is wound and unwound within the cable housing so as to inhibit application of a stretching stress on the cable during rotation of the rotatable unit. Preferably the length of cable moves between an inner coil configuration (figure 4A) and an outer coil configuration (figure 6A). The cable housing may include a rotatable ...

Node role assignment in networks

There is provided a node for use in a network, the node comprising: communication circuitry to communicate with a management server. Bootstrap circuitry initially identifies an intermediate node from at least one available node in the network in response to the communication circuitry being unable to communicate with the management server directly. The communication circuitry is arranged to communicate with the management server indirectly via the intermediate node when unable to communicate with the management server directly. Role assignment circuitry assigns a role to be performed by the node in the network based on whether the communication circuitry communicates with the management server directly, or indirectly via an intermediate node. Embodiments describe use within a wireless feeder network where the nodes may be a Feeder Base Station or Feeder Terminal.

Improvements in or relating to radar directional antenna systems

... 1,008,377. Linkwork. ALBISWERK ZURICH A.G. May 27, 1963 [May 25, 1962], No. 21013/63. Heading F2K. [Also in Division H4] In a directional aerial for a radar system comprising a radiator and an associated reflector formed as a figure of revolution, separate drive means are provided for rotating and reciprocating the radiator and a coupler is provided to select either drive so that the aerial beam executes a conical scan or scans in a plane. The radiator is both pivoted and fed from a waveguide at a ball-joint 2 and is extended mechanically to a guide pin 3. On the guide pin slides a coupling piece 4 which is fitted at one end with a conical nose 13 and at the other with a bead 18, each capable of respective engagement in cones 12 and 17. One cone, 12, is rotated eccentrically by a motor 9 whilst the other, 17, is reciprocated by a link 16 containing a slot in which engages an eccentric pin driven by another motor 14. A third motor 8 drives the coupler 4 through a lost-motion coupling 7 and ...

Improvements relating to positional control equipment

... 1,145,314. Electric positioned control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec.21, 1967 [Jan.5, 1967], No.664/67. Heading G1N. In a positional control system for e.g. an aerial AE Fig. 1 wherein a transducer PI measures the actual position of the aerial for comparison with the control signal to produce a difference signal energizing the servomotor M, errors due to mechanical vibration of the aerial are eliminated by sensing the frequency of the vibrations with a second transducer T and using the signal to control the frequency/attenuation characteristic of a notch filter NF in the servo-loop. In one embodiment Fig. 3 the vibration frequency signal f r from transducer T energizes a coil L to switch capacitor C to either side of a resistor R1 at this frequency then producing the desired characteristic. Alternative types of notch filter are shown.

Communication device having antenna arrays configured based on open/closed position of housing

A communication device enables associating a closed position and an open position of a movable housing positionably coupled to a base housing of the communication device with alternate ones of first and second modes of antenna communication that respectively utilize an antenna array of a first sub-array aligned or not aligned in a second sub-array. The first array of first antenna(s) is housed within the base housing. The second sub-array of second antenna(s) is housed within the movable housing. The controller monitors a housing sensor positioned to detect the closed position and the open position. In response to identifying the mode, the controller configures a modem to use an excitation matrix associated with the mode comprising magnitude and phase settings to apply to each antenna of the first and the second sub-arrays to act either independently or as an array.

Track bearing for antenna of telecommunications.

BELT REWINDING STAND FOR A COLLUSION DEVICE LIKE A ROLLER-TYPE SHUTTER

DIVERSITYANTENNE FOR A UNII ZUGANGSPUNKT

ARRAY ANTENNA WITH NARROW MAIN LOBES IN THE HORIZONTALS LEVEL

MECHANISM FOR AUTOMATIC POSITIONING OF A SATELLITE ANTENNA.

PROCEDURE AND DEVICE FOR THE MEASUREMENT OF WIND STRESSES AT A TURNING SYSTEM.

SENSOR ASSEMBLY

Method and apparatus for steering and stabilizing radio frequency beams utilizing photonic crystal structures

A stabilized platform for a wireless communication link

A terrestrial data communications wireless link includes a first link end that has a first directional antenna, a first beacon and a first redirecting assembly coupled to the first directional antenna. The wireless link also includes a second link end having a second directional antenna, a second beacon and a second redirecting assembly coupled to the second directional antenna. In use the first directional antenna and the second directional antenna are maintained in mutual alignment by the first redirecting assembly redirecting the first directional antenna in response to a signal from the second beacon and the second redirecting assembly redirecting the second directional antenna in response to a signal from the first beacon.

Antenna system

SATELLITE MAST INCLUDING LEVEL AND METHOD OF INSTALLING A SATELLITE DISH

A mast assembly for a satellite dish assembly includes a mast member having an aperture therethrough, and a level mounted interior of the mast member but visible from outside the mast member through the aperture in the mast member.

DIVERSITY ANTENNA FOR UNII ACCESS POINT

A combination of near omni-directional antennas and internal patch antennas, all built into an access point in accordance with FCC requirements. Typically a printed antenna array is used for the near omni-directional antenna, and the internal patch antenna is a TM10 mode stacked patch antenna. A mechanical detect switch changes antenna types automatically, depending on the rotation state of the antenna system. Alternately, a configuration utility enables a user to select the antenna type for the access point when it is installed in the field. This arrangement gives the UNII access point flexibility to be mounted in various orientations and match the characteristics of the antenna to the installation requirements.

ANTENNA SYSTEM

An antenna system including: an input port configured to receive tracking mode signals, in two orthogonal polarisations, from a target; a tracking coupler, configured to receive the tracking mode signals from the input port, the tracking coupler including: a first pair of opposed slot couplers configured to extract tracking signals from the tracking mode signals in a first one of the orthogonal polarisations, and a second pair of opposed slot couplers configured to extract tracking signals from the tracking mode signals in a second one of the orthogonal polarisations; and a tracking combiner network configured to combine the extracted tracking signals from the pairs of opposed slot couplers to generate tracking output signals for use in controlling the antenna system to track the target.

METHOD AND APPARATUS OF STUD ARRAY UPSTAND SETTING

... 2137678 9400734 PCTABS00030 Apparatus and method of setting the upstand height of the studs (5) of an array (1) of studs used to form antenna panels is disclosed. The apparatus includes a transducer beam (10) having a row of spaced apart distance transducers (12). The apparatus also includes an actuator beam (22) having a row of spaced rotary actuators (26). The actuators (26) rotate the threaded studs (5) to raise or lower same until the corresponding transducer (12) indicates that the stud has achieved an intended height. Also disclosed is a method using an array of laser diodes (60), rather than the transducer beam (10), arranged at one end of the base plate (2) and an array of photodiodes (62) at the opposite end. Output (63) of the diodes (62) indicates the height of the studs (5).

NON-CONTACT ROTATING COUPLER

A non-contact rotating coupler for transmitting a signal through coupling capacitances formed between opposite coupling plates arranged apart from each other. In the coupling plate, an inductance for causing a parallel resonance in a signal frequency band with a stray capacity existing between a grounded conductor and a non-grounded conductor is connected between a junction point of a resistor and a capacitor and the grounded conductor or between the non-grounded conductor and the grounded conductor, thereby reducing a coupling loss.

ANTENNA BEAM POINTING METHOD FOR SATELLITE MOBILE COMMUNICATIONS SYSTEM

A method for tracking a satellite in a land mobile satellite communications system is disclosed. A rate gyro is provided for use in the event that an automatic satellite tracking is prevented. The satellite is automatically tracked using a receive signal level if the receive signal level equals or exceeds a threshold. An output of the rate gyro is constantly compensated while automatically tracking the satellite. When the receive signal level falls below the threshold and the automatic satellite tracking becomes unable, the satellite is tracked using the compensated output of the rate gyro.

ROTATOR FOR A SATELLITE DISH AND FEED HORN

In a collapsible roof mounting for orienting a satellite dish system from below, an upper channel-shaped formation arranged to present a dish-shaped component adjacent one end and an arm formation for the feed horn intermediately thereof and nestable within and interconnected to a lower channel-shaped formation adjacent the other end for swinging movement thereabove, a tubular shaft formation supporting the lower channel-shaped formation centrally thereof from below for rotation about a substantially upright axis, a displaceable linkage including a worm gear interconnected to the upper channel-shaped formation and a worm extending axially of the tubular shaft formation for swinging the upper channel-shaped formation upwardly from the nested disposition and reversely, a handle formation for the tubular shaft formation below the roof for imparting rotation thereto and a crank for the worm located below the handle formation for imparting displacement to the worm and worm gear.

Radarapparatur.

Radar-Richtantennenanordnung

HYDROSTATISCHES STUETZELEMENT.

Vorrichtung zur genauen Dosierung von Flüssigkeiten

SWIVELLING ANTENNA SYSTEM, IN PARTICULAR FOR SATELLITE SHIP AND - GROUND STATIONS.

Dual axis pivot support for directional antenna - uses two perpendicular shafts each rotated by respective electric motor

The support uses a hollow shaft (8) extending perpendicular to a reference plane (2). This in turn supports a second shaft at right angles, via which the antenna (1) supported, at a required inclination and rotation angle relative to the reference plane (2). Each of the shafts (8,9) is rotated via a respective setting motor (6,7) supported by the reference plane, via a simple gear mechanism (10) and via a rack and pinion mechanism respectively. USE - For automatic adjustment of directional antenna.

Stationary antenna with translation telemetry.

Spezielle Ausführungsbeispiele der Erfindung können Systeme und Verfahren beinhalten, die dazu dienen, eine stationäre Antenne (212) mit Translationstelemetrie zu schaffen. Gemäss einem Ausführungsbeispiel der Erfindung ist ein Verfahren geschaffen, das dazu dient, eine stationäre Antenne (212) automatisch mit einer entsprechenden Rotorantenne (218) fluchtend auszurichten. Das Verfahren ermöglicht ein Befestigen einer stationären Antenne (212) in Bezug auf eine Rotorantenne (218), die einem Rotor (222) zugeordnet ist. Zu dem Verfahren gehören die Schritte: Befestigen einer stationären Antenne (212) an einen Innenumfang eines Tragrahmens (202); Befestigen mehrerer radialer Luftlager (210) an dem Tragrahmen (202), um eine radiale Ausrichtung der stationären Antenne (212) in Bezug auf die Rotorantenne (218) aufrecht zu erhalten; und Befestigen mehrerer axialer Luftlager (208) an dem Tragrahmen (202), um eine axiale Ausrichtung der stationären Antenne (212) in Bezug auf die Rotorantenne (218 ...

DRIVE DEVICE FOR ORIENTATION OF ANTENNA

ROTATABLE ANTENNA ARRANGEMENT FOR LOS-MIMO

A SMA connected 2.4 GHz & 5GHz miniaturized external antenna

Protection device for outdoor antenna

DISPOSITIF SYMETRIQUE DE CONTACT TOURNANT POUR ALIMENTATION D'ANTENNES ROTATIVES

L'INVENTION CONSISTE A DISPOSER DANS LE PIEDESTAL 6 D'UNE ANTENNE ROTATIVE, ALIMENTEE PAR UNE LIGNE BIFILAIRE, UN EQUIPAGE MOBILE POUVANT TOURNER AUTOUR DE L'AXE DE ROTATION 20 DE L'ANTENNE. CET EQUIPAGE MOBILE PORTE DEUX PIECES DE CONTACT SYMETRIQUES 16, 17, EN FORME DE PORTION DE COURONNE, CENTREES SUR L'AXE DE ROTATION DE L'ANTENNE 20. LES EXTREMITES DES BRINS 12, 13 DE LA LIGNE BIFILAIRE D'AMENEE FIXE, SOLIDAIRE DU PIEDESTAL, ET DES BRINS 121, 131 DE LA LIGNE BIFILAIRE DE DISTRIBUTION SOLIDAIRE DE LA COLONNE TOURNANTE 5 DE L'ANTENNE ROTATIVE FORMENT DES CONTACTS GLISSANT DE PART ET D'AUTRE DES DEUX PIECES DE CONTACT 16, 17.

Roller track for telecommunications antenna - has tapered rollers traversing polygon of flat railway rail sections having angled ends

COMPACT ANTENNA WITH VARIABLE BEAM APERTURE

Antenne compacte (1) à un seul faisceau comprenant un réflecteur principal (2), un réflecteur secondaire (3), et un ensemble actionneur (8, 9) commandé agissant sur le réflecteur secondaire (3) de manière à gérer l'ouverture du faisceau.

ANTENNA COMPRISING a SERPENTINE GUIDE Of FOOD COUPLE PARALLEL TO a PLURALITY OF GUIDES RADIANT AND MANUFACTORING PROCESS Of SUCH an ANTENNA

DEVICE FOR SUSPENDING AN APPLIANCE FROM A PLATFORM

Method and device for orienting the radiation diagram of an antenna carried by a land-based vehicle and application to links by geostationary satellites

L'invention concerne un procédé et un dispositif pour orienter le diagramme de rayonnement d'une antenne portée par un mobile terrestre. On utilise le champ magnétique terrestre environnant pour constituer une orientation de référence et on asservit à cette orientation la direction de diagramme de rayonnement de l'antenne. On utilise, par exemple, un dispositif comprenant un aimant (4) pour détecter l'orientation du champ magnétique et des moyens (2) pour réaliser ledit asservissement. L'invention s'applique notamment à la réalisation d'une liaison avec un satellite géo-stationnaire.

Process and device of measurement of efforts related to the wind on a revolving system

La présente invention concerne un procédé et un dispositif de mesure d'efforts liés au vent sur un système tournant. Elle est fondée sur les études de la Demanderesse qui a montré que la puissance fournie par les moteurs entraînant le système en rotation était fonction de ces efforts. Une mesure de la puissance, ou de toute grandeur caractéristique de cette puissance (courant, cosphi, pression...) permet donc de mesurer simplement les efforts liés au vent. Si l'on se fixe une valeur de puissance (ou de grandeur caractéristique) limite liée à la vitesse limite du vent au-delà de laquelle les forces subies par le système sont trop importantes, on obtient facilement, moyennant une comparaison, une condition sur le fonctionnement des moteurs. L'invention permet également, pour des systèmes tournants effectuant une mesure d'angle, de faire une correction sur cette mesure.

Device of support and swing drive of a payload compared to a structure, in particular for a mechanism of pointing of antenna of satellite

Ce dispositif (18) comporte: - une première couronne de liaison (20) reliée à la charge utile; - une seconde couronne de liaison (22) reliée à la structure; - une paire de roulements annulaires (38, 40) pour le guidage en rotation de la première couronne de liaison (20) par rapport à la seconde couronne de liaison (22); - un moteur annulaire (58) dont le stator (60) est fixé à l'une (22) des deux couronnes de liaison et dont le rotor (62) entraîne l'autre couronne de liaison (20) en rotation par l'intermédiaire d'un réducteur; et - un réducteur du type à train épicycloïdal différentiel agencé à l'intérieur de la paire de roulements annulaires (38, 40).

ROTARY ANTENNA WITH RELAY

The present invention relates to a rotary antenna with a relay and, more specifically, relates to the rotary antenna with a relay to freely adjust the beam direction of an antenna provided therein depending on the beam direction of a base station antenna. The rotary antenna with a relay according to the present invention comprises: a fixed housing which is fixed to an installation object; a rotary housing which is provided with an antenna module transmitting and receiving an RF signal, and is coupled to the fixed housing to rotate; and a relay which is fixed to the rotary housing, is rotated together with the rotary housing, and is electrically connected to the antenna module. COPYRIGHT KIPO 2017 ...

antenna for receiving COMINT signal for electronic warfare

운동 플랫폼 및 피기백 어셈블리를 갖는 3-축 받침부

... 안테나 시스템에 대한 것으로서, 안테나; 수직 지지 어셈블리, 크로스 레벨 프레임 어셈블리, 및 상기 안테나를 가동 지지하도록 구성된 고도 프레임 어셈블리; 상기 수직 지지 어셈블리를 방위 축선 주위로 회전시키기 위한 방위 구동기; 상기 수직 지지 어셈블리에 대해 상기 크로스 레벨 프레임 어셈블리를 크로스 레벨 축선 주위로 회전시키기 위한 크로스 레벨 구동기; 상기 크로스 레벨 프레임 어셈블리에 대해 상기 고도 프레임 어셈블리를 고도 축선 주위로 회전시키기 위한 고도 구동기; 상기 고도 프레임 어셈블리에 부착되어 그와 함께 움직일 수 있는 운동 플랫폼 어셈블리; 및 제어 유닛을 포함하고, 상기 운동 플랫폼 어셈블리는: 제1 축선 주위로의 운동을 감지하도록 구성된 제1 각속도 센서, 상기 제1 축선에 대해 수직한 제2 축선 주위로의 운동을 감지하도록 구성된 제2 각속도 센서, 상기 제1 축선 및 상기 제2 축선에 대해 수직한 제3 축선 주위로의 운동을 감지하도록 구성된 제3 각속도 센서, 및 지구 중력 벡터를 결정하도록 구성된 하나 이상의 가속도계를 포함하고, 상기 제어 유닛은 상기 제1 각속도 센서, 상기 제2 각속도 센서, 상기 제3 각속도 센서, 및 상기 하나 이상의 가속도계에 통신가능하게 연결되고, 상기 제어 유닛은 상기 제1 축선, 상기 제2 축선, 및 상기 제3 축선 중 적어도 하나의 지구 중력 벡터에 대한 위치를 결정하도록 구성된다.

TRANSPORTABLE RADAR UTILIZING HARMONIC DRIVES FOR ANTI-BACKLASH ANTENNA MOVEMENT

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal.

Adjustable telescope tracking platform

An equatorial tracking platform for a telescope that comprises two rolling surfaces, each in contact with a pair of rollers which each have an adjustment for the latitude setting. One rolling surface is a complex 3-dimensional contour, which provides for a differing radius for each latitude setting, while the other rolling surface is of fixed radius. By varying the angle of the roller pairs, the virtual axis of rotation is changed to be aligned parallel to the earth's rotational axis, thus allowing a telescope to accurately track a celestial object.

Antenna assembly

An assembly of mechanically steerable directional radio antennas, comprising a primary antenna and at least one secondary antenna, arranged such that the or each secondary antenna is capable of being physically steered over a limited azimuthal arc relative to the primary antenna, and is at least partially within the swept volume of the primary antenna. By allowing the swept volumes of the antennas to overlap, a compact assembly can be provided, while by limiting the azimuthal movement of the secondary antennas relative to the primary, it can be arranged that the antennas do not foul each other.

Power antenna apparatus and application thereof to wireless communication system

Disclosed is a power antenna apparatus for automatically extracting/retracting an antenna. A motor is controlled by a control circuit to generate a rotational force. An antenna housing has a guide slot extending longitudinally on an inner surface thereof. A rotary member is installed in the antenna housing and is rotated by the motor. A coil spring is rotatably accommodated in the antenna housing and one end thereof is fixed to the rotary member. An antenna conveying member is received together with the antenna within the coil spring as being fixedly coupled with the antenna by a lower end of the antenna. The antenna conveying member has protrusions which are loosely inserted into the guide slot of the antenna housing and conveys the antenna along with the guide slot to extract or retract the antenna by means of a rotation of the coil spring. Other embodiments are disclosed for flexible installation of the apparatus. Application of the apparatus to a wireless telephone is also disclosed ...

Method and apparatus for orienting a directional antenna

A device orienting apparatus includes a device-attachment structure having a non-uniform mass distribution, a post, and a base structure. The device-attachment structure includes a pivot hole and the post has a first-end section surrounded by the pivot hole. A second-end section of the post is secured so that a directional antenna is held in a preferred orientation when the post is perpendicular to a gravitational field.

Rotatable antenna arrangement for LOS-MIMO

An antenna arrangement for LOS-MIMO communication, comprising first and second directive antenna units, a mounting bracket, and a connecting element attached to at least one of the directive antenna units and arranged to separate the directive antenna units by a distance. The connecting element is rotatably arranged in relation to the mounting bracket, wherein a rotation of the connecting element about the rotation axis changes an effective distance d between the first and the second directive antenna units.

Antenna positioning system

An apparatus for positioning and controlling a spherical, inflatable antenna includes a driven rotating table disposed in the horizontal plane which supports and drives a horizontal arm member to which is hingedly connected first and second upright support members at either end. The upright support members include journal bearings attachable to the surface of an inflatable antenna.

Configurable antenna and method of operating such a configurable antenna

An antenna apparatus for use in a wireless network and method of operating such an antenna apparatus are provided. A wireless network controller provides a configuration of such an antenna apparatus, a method of operating such a wireless network controller, and a resulting wireless network. The antenna apparatus comprises a directional antenna and a uniform circular antenna array. The directional antenna can be rotatably positioned about an axis with respect to a fixed mounting portion of the apparatus in dependence on wireless signals received by the antenna array. The antenna array allows the antenna apparatus to receive wireless signals isotropically and thus to accurately monitor the wireless signal environment in which it finds itself. The antenna apparatus can thus monitor and characterize incoming signals, both from external interference sources and from other network nodes, and the directional antenna can then be positioned in rotation to improve the network throughput.

Measurement opportunities for a mobile unit operating with a switched beam antenna in a CDMA system

Measurement opportunities are provided to a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a CDMA wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams and an omni-directional beam. The bursty nature of packet data transmission generates periods of inactivity or low traffic during a call. The WTRU switches to antenna beams other than the selected antenna beam for receiving and measuring signals during these periods of inactivity or low traffic. Moreover, if the network has knowledge of the fact the WTRU is operating using a switched beam antenna, the network can use this information when making decisions on channel allocations, thus providing frequent measurement opportunities to the WTRU in order to support the switched beam antenna operation.

Antenna reflector

A reflector (8) for a reflector antenna is provided for producing a far field pattern with near-zero field strength at a predetermined position, the reflector having a surface comprising a stepped profile for generating the near-zero field strength. The stepped profile may comprise a radial step. The location of the near-zero field strength can be steered by moving the reflector only or by adjusting the amplitude and phase of an additional low resolution beam, produced by, for example, a simple horn (16), covering the same region.

DEVICE FOR POSITIONING AN OBJECT IN ALL DIRECTIONS

Reflector antenna with a stator part and a rotor part which is rotatably mounted in respect to said stator part

Abstract not available! Abstract of correspondent: US6417814 A reflector antenna is disclosed with a stator portion and a rotor portion which is supported for rotation relative to the stator portion about a rotation axis. A reflector that is connected by an electrical connection with the stator portion, is secured to the rotor portion. The electrical connection is formed as a flexible connecting cable, wherein one end of the cable is attached to the rotor portion and the other end is attached to the stator portion. A segment of the connecting cable rotates with half the rotation speed of the rotor portion and with the same rotation direction as the rotor portion ...

MICROSTRIP WIDE BAND ANTENNA AND RADOME

A Radio Frequency (RF) microstrip antenna employs a planar or curved radiator element (302) that is mounted or supported in spaced relation to a planar or curved ground plane element (304). An RF feed is attached near one edge of the radiator element for receiving and/or transmitting RF signals in a lobe that is substantially perpendicular to the ground plane element. The radiator element and the ground plane element are maintained in a converging, inclined or tilted physical relationship. When a coaxial cable (303) is employed as the antenna feed, the cable's outer insulating is secured to the ground plane element, the cable's center conductor extends away from the ground plane element to provide signal feed to the radiator element and to provide physical support for one edge of the radiator element, and two insulator posts (325, 326) extend away from the ground plane element to provide support for the opposite edge of the radiator element. A two-piece, snap-together, radome (301) is provided ...

METHOD AND SYSTEM FOR CONTROLLING THE DIRECTION OF AN ANTENNA BEAM

ROTATION ROCKING APPARATUS

PROBLEM TO BE SOLVED: To provide a rotation rocking apparatus capable of joining an object to be driven, such as a reflecting mirror, and a fulcrum shaft easily, reducing excessive loads influencing a ball bearing, and improving the controllability and durability of an angle of oscillation. SOLUTION: The apparatus is provided with the fulcrum shaft arranged on both sides of the object to be driven and a bearing for supporting the object to be driven via the fulcrum shaft so that it can rotate or rock, a spherical part is provided for a connection part of the fulcrum shaft and the bearing, and the object to be driven is rotated or rocked with a straight line passing the center of the spherical part as an axis. COPYRIGHT: (C)2007,JPO&INPIT ...

СПОСОБ УПРАВЛЕНИЯ ПОЛОЖЕНИЕМ ОСИ АНТЕННЫ БОРТОВОЙ РАДИОЛОКАЦИОННОЙ СТАНЦИИ ПРИ СОПРОВОЖДЕНИИ МЕНЕВРИРУЮЩЕЙ ВОЗДУШНОЙ ЦЕЛИ

Изобретение относится к радиолокации и может быть использовано в радиолокационных станциях (РЛС) для непрерывной селекции, сопровождения интенсивно маневрирующей воздушной цели (МВЦ), в том числе информационного обеспечения процесса наведения летательного аппарата (ЛА). Техническим результатом заявленного изобретения является снижение ошибок управления приводом антенны РЛС ЛА по углу и угловой скорости при сопровождении МВЦ. В заявленном способе выполняют определение оптимальных, однозначно связанных с заданными параметрами привода антеннывесовых коэффициентовошибок управления приводом антенны по углуи угловой скоростирассчитанными через нахождение коэффициентов матрицы усиления сигналов управления, с учетом полной матрицы штрафов за точность в текущий момент времени управления. Расчет исключает трудоемкий, не оптимальный по результату поиск весов ошибок управления методом перебора (методом проб и ошибок). 12 ил.

Пульт управления антенной (ПУА)

Полезная модель относится к области электротехники, а именно к системам управления и регулирования, и может быть использована для установки антенны средств радиосвязи в заданное положение. В частности, данное техническое решение может быть использовано в передвижных аппаратных связи на колесной или гусеничной базе. Технический результат состоит в безопасной эксплуатации устройства. Упомянутый технический результат достигается за счет того, что пульт управления антенной, содержащий силовой блок с двумя входами, выход которого предназначен для подключения реверсивного двигателя с антенной на его валу, переключатель заданных положений антенны, блок световых индикаторов положения антенны, устройство преобразования и обработки сигналов, отличающийся тем, что в качестве устройства преобразования и обработки сигналов используется микроконтроллер, получающий на порты ввода информацию о положении антенны от исполнительного устройства, в состав которого входит реверсивный двигатель, а также информацию ...

Уравновешенное опорно-поворотное устройство

Изобретение относится к антенной технике, а именно к опорно-поворотным устройствам, и служит для динамического наведения остронаправленных наземных антенн для связи с низкоорбитальными космическими аппаратами. Технический результат - уравновешение гравитационного воздействия на опорно-поворотное устройство тяжелых антенн с диаметром до 17 м, динамическое управление им в полном диапазоне углов места и азимутов без ограничения сектора наведения, улучшение динамических характеристик опорно-поворотного устройства, в том числе в режимах ускорения и торможения вращательного движения. Технический результат достигается тем, что предлагается уравновешенное опорно-поворотное устройство, содержащее, по крайней мере, два поворотных механизма, каждый из которых со своей осью вращения, и противовес, закрепленный противоположно антенне на угломестной оси вращения, причем указанный противовес конструктивно включается трансформируемым таким образом, что длина плеча рычага груза изменяется прямо пропорционально ...

ВСПОМОГАТЕЛЬНОЕ УСТРОЙСТВО ДЛЯ НАСТРОЙКИ ОРИЕНТАЦИИ АНТЕННЫ И СПОСОБ УСТАНОВКИ АНТЕННОГО УСТРОЙСТВА

... 1. Вспомогательное устройство для настройки ориентации антенны, содержащее:средство детектирования интенсивности приема для детектирования интенсивности приема радиоволн, принятых посредством антенного блока;средство вычисления положения для вычисления относительного углового положения антенного блока с использованием изображения, полученного посредством камеры, зафиксированной относительно антенного блока; исредство записи интенсивности приема для записи относительного углового положения антенного блока и интенсивности приема при этом относительном угловом положении совместно друг с другом.2. Вспомогательное устройство для настройки ориентации антенны по п. 1, дополнительно содержащее:средство записи начального изображения для записи изображения, полученного посредством камеры, когда антенный блок находится в начальном положении, в качестве начального изображения; исредство захвата изображения для захвата изображения, полученного посредством камеры, когда антенный блок находится в текущем ...

Radarantennenanlage mit zwei oder mehr uebereinander angeordneten Antennen

Elektromechanische Steuervorrichtung fuer die Strahlungsrichtung eines Reflektors

Haltemast für eine Satellitenantenne

Haltemast (12) für eine Satellitenantenne (10), deren Neigungswinkel und Drehwinkel (Positionswinkel) in horizontaler Ebene durch Verstelleinrichtungen (18) verstellbar sind, mit einem an dem erdseitigen Ende (14) des Haltemastes (12) angeordneten Lagerbett (16), wobei der Haltemast (12) aus zwei Rohren (22, 24) mit kreisringfömigem Querschnitt, einem unteren Standmast (22) und einem oberen Antennenhaltemast (24), besteht, die teleskopartig ineinander verschiebbar sind, wobei am oberen Antennenhaltemast (24) eine um eine waagerechte Achse (26) schwenkbare Antennenhalterung (28) angeordnet ist, und an dem der Satellitenantenne (10) gegenüberliegenden Ende (38) der Antennenhalterung (28) eine senkrechte Gewindebohrung (40) angeordnet ist, in welcher ein Gewindestift (42) geführt ist, der bei seiner Drehung um seine senkrechte Achse zu einer Höhenverschiebung des Endes (38) der Antennenhalterung (28) und damit zu einer Änderung des Neigungswinkels der Satellitenantenne (10) führt, dadurch ...

Radargerät für einen Flugkörper, insbesondere für eine Drohne

Die vorliegende Erfindung betrifft ein Radargerät (3) für einen Flugkörper, insbesondere für eine Drohne (1). Das Radargerät (3) für einen Flugkörper weist Folgendes auf: . eine erste Struktur (4), die mit einem Luftfahrzeug (1), welches das Radargerät (3) mit sich führt, mechanisch fest verbunden ist; die erste Struktur (4) besitzt bezüglich des Luftfahrzeugs (1) einen Drehfreiheitsgrad gemäß eindie mit der ersten Struktur (4) fest verbunden ist; die zweite Struktur (5) besitzt bezüglich der ersten Struktur (4) einen Drehfreiheitsgrad gemäß einer zweiten, die erste Achse (23) kreuzenden Achse (26); . eine an der zweiten Struktur (5) befestigte Antenne (28) zum Empfangen und Senden von elektromagnetischen Wellen; . ein elektronisches Modul (40, 41), das die Verarbeitung der von der Antenne (28) gesendeten oder empfangenen elektromagnetischen Wellen gewährleistet, wobei das elektronische Modul (40, 41) an der zweiten Struktur (5) befestigt ist. Diese Erfindung findet ihre Hauptanwendung ...

Vorrichtung zur Steuerung des Antriebs eines drehbar an einem Grundkörper gelagerten Steuerorgans, beispielsweise des Ruderblatts eines Fahrzeugmodells

Gehäuse für Funkübertragungssystem mit im Gehäuse integrierter Sende-/Empfangsantenne

Verfahren und Vorrichtung zur Messung von Windbeanspruchungen an einem Drehsystem.

Satellite antenna positioning system

Satellite antenna positioning system

Antenna device for RFID reader/writer

Quality of service in wireless backhauls

An antenna assembly

An antenna apparatus and method of configuring a transmission beam for the antenna apparatus

Improvements in or relating to devices for the transmission of electrical energy

... 1,134,636. Cables; waveguides. LABORATOIRE D'ELECTRONIQUE ET D'AUTOMATIQUE DAUPHINOIS. 23 Nov., 1965 [26 Nov., 1964], No. 49736/65. Headings H1A and H1W. An electrical conductor is of heterogeneous construction in the radial direction, at least one of the properties of resistivity, permeability or permittivity varying in this direction, the conductor comprising a core surrounded by at least one layer for which the product of resistivity and permeability is much greater than for copper, the thickness of the layer or of each layer being related to the skin thickness for transmission in layer for a particular frequency required to be transmitted. The Specification examines the effect of theoretical layers with graduated electrical parameters and demonstrates that by choice of the thickness and electrical parameters of the surrounding layer or layers in relation to required transmission frequencies a number of results are possible, viz.:- (i) a rapidly increasing attenuation of transmission ...

Improvements relating to electrical slip-ring assemblies

... 617,762. Collectors. SHAND, G., BLETCHER, T. J. and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 6, 1946, No. 32983. [Class 38 (i)] A slip-ring assembly consists of metal contact rings 1 and insulating rings 5 mounted on a central stem. The rings are provided with circular rows of holes 2, 6 and each insulating ring is provided with a stepped flange 9, 10 surrounding the central opening and on each side with a projecting pin or spigot 8 which engages in a hole in the adjacent metal ring. The part 9 of the flange passes through the central opening of the adjacent metal ring, the part 10 entering a recess in the following insulating ring. A conductor 12 is secured in one of the holes in each metal ring and passes through the holes in the rings below it.

Remotely adjustable reactive and resistive electrical elements and method

Apparatus and method that includes providing a variable-parameter electrical component in a high-field environment and based on an electrical signal, automatically moving a movable portion of the electrical component in relation to another portion of the electrical component to vary at least one of its parameters. In some embodiments, the moving uses a mechanical movement device (e.g., a linear positioner, rotary motor, or pump). In some embodiments of the method, the electrical component has a variable inductance, capacitance, and/or resistance. Some embodiments include using a computer that controls the moving of the movable portion of the electrical component in order to vary an electrical parameter of the electrical component. Some embodiments include using a feedback signal to provide feedback control in order to adjust and/or maintain the electrical parameter. Some embodiments include a non-magnetic positioner connected to an electrical component configured to have its RLC parameters varied by the positioner.

Triaxial Positioner for an Antenna

A positioner for an antenna intended to be placed in a given or restricted volume comprises: a first axis Aα ensuring the movement of the antenna in azimuth, a third axis Aγ ensuring the movement of the antenna in elevation, said third axis Aγ being orthogonal and coplanar to the first axis Aα, and a second axis of rotation Aβ or cross-elevation axis positioned so as to intersect said first axis Aα and said third axis Aγ at one and the same virtual point O, said virtual point O of intersection of the three axes Aα, Aβ, Aγ constituting the pivot point of the movements of said antenna mounted on the positioner.

ROTATIONAL PARABOLIC ANTENNA WITH VARIOUS FEED CONFIGURATIONS

A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed. 1. A rotational antenna , comprising:a rotational parabolic dish; anda rotational feed which is disposed on the rotational parabolic dish for rotation therewith, the rotational feed comprising at least one radio frequency (RF) feed and at least one separate acoustic feed.2. The rotational antenna of claim 1 , wherein the at least one acoustic feed comprises a plurality of pipes with horns for broadcasting acoustic energy onto the parabolic dish.3. The rotational antenna of claim 2 , wherein the plurality of pipes with horns comprises at least part of a Radio Acoustic Sounding System (RASS).4. The rotational antenna of claim 1 , comprising a positioner which rotatably positions the parabolic dish and the rotational feed.5. The rotational antenna of claim 4 , wherein the positioner comprises:a stationary antenna mount;a turntable rotatably mounted to the stationary antenna mount; anda rotator motor which rotates the turntable,wherein the rotational parabolic dish is fixedly mounted to the turntable for rotation therewith.6. The rotational antenna of claim 5 , comprising a coaxial rotary joint positioned at a center of the turntable for accommodating a coaxial input of the RF feed.7. The rotational antenna of claim 6 , wherein the coaxial rotary joint comprises a bulkhead pass-through opening for accommodating wires for the at least one separate acoustic feed.8. A velocity-azimuth display (VAD) radar wind profiler system for making automatic measurements of wind profiles in the atmosphere claim 6 , comprising:a radar controller for controlling the ...

Multi-point driving device for general purpose base station antenna

A multi-point driving device is provided for a general-purpose base station antenna and includes a fixed member, at least three direction-changeable connectors, a rigid base station antenna, and at least one linear actuator. The fixed member is coupled to an end of at least one direction-changeable connector, which provides a function of direction change. Each direction-changeable connector has an opposite end coupled to a surface of the base station antenna. The linear actuator has an end coupled to the fixed member and an opposite end carrying an operation rod coupled to an end of the direction-changeable connectors that is not mounted to the fixed member and the base station antenna, whereby a direction-changeable structure of at least three points is formed between the base station antenna and the fixed member for changing direction in at least one orientation.

Communication Device Comprising Two or More Antennas

The present invention provides an electronic device adapted for performing a wireless communication for a transmission of data. The device comprises at least a first antenna having a first antenna feed point and a second antenna having a second antenna feed point, The antennas are adapted to transmit and receive electromagnetic signals for providing the wireless communication using a multiple antenna communication scheme.

RESONANT CIRCUIT DYNAMIC OPTIMIZATION SYSTEM AND METHOD

A resonant circuit dynamic optimization system is described herein that can exhibit improved system charging functionality, can have multi-input charging functionality, and can improve the efficiency and speed of charging electronic devices. The resonant circuit dynamic optimization system can comprise at least one antenna configured to receive or transmit an electromagnetic signal, at least one variable component, and at least one dynamic adjustment circuit. The dynamic adjustment circuit can adjust the variable component to thereby modify the power transfer efficiency of the electromagnetic signal. 1. A resonant circuit dynamic optimization system , said system comprising:at least one antenna configured to receive or transmit at least one electromagnetic signal;at least one variable component operatively coupled to said antenna, wherein said variable component is configured to modify the power transfer efficiency of said electromagnetic signal; andat least one dynamic adjustment circuit operatively coupled to said variable component, wherein said variable component is configured to be responsive to said dynamic adjustment circuit.2. The resonant circuit dynamic optimization system of wherein said variable component comprises a variable capacitor claim 1 , a variable inductor claim 1 , a variable resistor claim 1 , a variable antenna configuration claim 1 , or combinations thereof.3. The resonant circuit dynamic optimization system of wherein said variable component comprises said variable antenna configuration claim 2 , wherein said variable antenna configuration comprises at least one adjustable inductance antenna.4. The resonant circuit dynamic optimization system of wherein said variable component comprises said variable antenna configuration claim 2 , wherein said variable antenna configuration comprises a plurality of switchable antennas comprising at least two shapes.5. The resonant circuit dynamic optimization system of wherein said variable component ...

ENCLOSURE WITH SELF-CONTAINED ADJUSTABLE SHROUDING

An assembly includes a self-contained, adjustable shrouding for a MIMO or SISO, or combination thereof, retransmission system enclosure. The enclosure ensures proper coverage areas of small to large facilities. The proper coverage is achieved through cake layer pie designs that previously often resulted in capacity and sector overlay issues. The antenna enclosure has a directional nature that allows for dividing stadiums, arenas, tracks, (or other large groups) into manageable smaller coverage areas through controlled directional zoning. 1. An enclosure comprising:a mount for connecting the enclosure to a structure;a self-contained, adjustable shrouding inside the enclosure; anda plurality of independent radio frequency panel antennas disposed in the enclosure, the plurality of independent radio frequency panel antennas used for at least one of multiple-input/multiple-output (MIMO) and single-input/single-output (SISO) retransmission systems, whereinthe shrouding directs a signal from each of the plurality of antennas in a desired direction at a desired and controlled coverage area;a gain provided to each of the plurality of antennas provides a desired and controlled coverage distance; andthe mount provides adjustment of vertical and lateral direction of the signal from each of the plurality of antennas.2. The enclosure of claim 1 , further comprising outer fins at each side of the enclosure claim 1 , the outer fins adjustable to control a pie width of the signal from each of the plurality of antennas.3. The enclosure of claim 1 , further comprising a lower horizontal fin and an upper horizontal fin claim 1 , the lower and upper horizontal fins adjustable to control a cake layer height of the signal from each of the plurality of antennas.4. The enclosure of claim 1 , further comprising a cover disposed over a front face of the enclosure.5. The enclosure of claim 1 , wherein the mount includes a fulcrum plate having a fulcrum slot permitting vertical directional ...

Antenna system

An antenna system including: an input port configured to receive tracking mode signals, in two orthogonal polarisations, from a target; a tracking coupler, configured to receive the tracking mode signals from the input port, the tracking coupler including: a first pair of opposed slot couplers configured to extract tracking signals from the tracking mode signals in a first one of the orthogonal polarisations, and a second pair of opposed slot couplers configured to extract tracking signals from the tracking mode signals in a second one of the orthogonal polarisations; and a tracking combiner network configured to combine the extracted tracking signals from the pairs of opposed slot couplers to generate tracking output signals for use in controlling the antenna system to track the target.

POLARIZER ROTATING DEVICE FOR MULTI POLARIZED SATELLITE SIGNAL AND SATELLITE SIGNAL RECEIVING APPARATUS HAVING THE SAME

There are provided a polarizer rotating device and a satellite signal receiving apparatus having the same. The satellite signal receiving apparatus includes a feedhorn that receives a satellite signal; a low noise block down converter that processes the signal received by the feedhorn; a skew compensating device that is provided at the low noise block down converter or the feedhorn and rotates the low noise block down converter or the feedhorn to compensate for a skew angle when the satellite signal received by the feedhorn is a linearly polarized wave; a polarizer that receives a linearly polarized signal and a circularly polarized signal of the satellite signal; and a polarizer rotating device that rotates the polarizer when the satellite signal received by the polarizer is a circularly polarized wave. In such a simple structure, the linearly polarized wave and the circularly polarized wave are all received to be processed. 1. A satellite signal receiving apparatus , comprising:a feedhorn that receives a satellite signal;a low noise block down converter that processes the signal received by the feedhorn;a skew compensating device that is provided at the low noise block down converter or the feedhorn and rotates the low noise block down converter or the feedhorn to compensate for a skew angle when the satellite signal received by the feedhorn is a linearly polarized wave;a polarizer that receives a linearly polarized signal and a circularly polarized signal of the satellite signal; anda polarizer rotating device that rotates the polarizer when the satellite signal received by the polarizer is a circularly polarized wave.2. The satellite signal receiving apparatus according to claim 1 ,wherein the low noise block down converter includes:a processing module that includes a processing part for processing a band of the signal received by the feedhorn; anda signal transmission part that is formed at the processing module and includes a single waveguide formed ...

TRANSPORTABLE X-BAND RADAR HAVING ANTENNA MOUNTED ELECTRONICS

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal. 1. A Doppler radar capable of transmitting in the X-band frequency range , comprising:a. a pedestal for supporting said radar;b. a rotational assembly supported by said pedestal;c. elevational assembly rotationally supported by said rotational assembly, said elevational assembly including two axially aligned elevational joints mounted on opposite sides of said elevational assembly;d. a frame superstructure rotationally supported by and spanning said elevational joints about said elevational assembly, said frame superstructure including a separate antenna mounting frame spanning said elevational assembly; and,e. a parabolic antenna assembly mounted on said antenna mounting frame having an orthomode feed horn and at least one wavguide assembly connected to said orthomode feed horn for bidirectional communications with a transceiver assembly.2. A radar as recited in claim 1 , wherein said frame superstructure further includes a pair of downward depending panels symmetrically opposed to one another and positioned on opposite ides of said elevational assembly claim 1 , wherein each said panel holds an electronics compartment.3. A radar as recited in claim 2 , wherein at least one of said electronics compartments holds a radar transceiver.4. A radar as ...

TRIPLE STAGGER OFFSETABLE AZIMUTH BEAM WIDTH CONTROLLED ANTENNA FOR WIRELESS NETWORK

A variably controlled stagger antenna array architecture is disclosed. The array employs a plurality of driven radiating elements that are spatially arranged having each radiating element or element groups orthogonally movable relative to a main vertical axis. This provides a controlled variation of the antenna array's azimuth radiation pattern without excessive side lobe radiation over full range of settings. 1. An antenna for a wireless network , comprising:a generally planar reflector;a plurality of radiators; andone or more actuators coupled to at least some of the radiators;wherein the radiators are reconfigurable from a first configuration where the radiators are all aligned to a second configuration where the radiators are configured in three columns, each column having plural radiators generally aligned.2. The antenna of claim 1 , wherein said plurality of radiators comprise a first and second plurality of radiators which are movable and a third plurality of radiators which are fixed.3. The antenna of claim 2 , wherein the first and second plurality of radiators are movable in opposite directions.4. The antenna of claim 2 , further comprising a first plurality of radiator mount plates coupled to the first plurality of radiators and slidable relative to the reflector and a second plurality of radiator mount plates coupled to the second plurality of radiators and slidable relative to the reflector.5. The antenna of claim 4 , wherein said reflector has a plurality of orifices and wherein said first and second plurality of radiator mount plates are configured behind said orifices.6. The antenna of claim 1 , wherein the reflector is generally planar defined by a Y-axis and a Z-axis parallel to the plane of the reflector and an X-axis extending out of the plane of the reflector claim 1 , and wherein the radiators are spaced apart a distance VS in the Z direction.7. The antenna of claim 6 , wherein the reflectors in said first configuration are aligned along a ...

Antenna device for electromagnetic measurement

An antenna device includes a base, four adjusting apparatuses, two connecting poles each connected between two the adjusting apparatuses, a first slide apparatus with a first motor fitted around each connecting pole, a supporting pole, and an antenna. Each adjusting apparatus includes a pole perpendicularly extending up from the base, a second slide apparatus fitted around the pole, and a second motor installed in the base and connecting the second slide apparatus. Two ends of each connecting pole are respectively mounted to the corresponding second slide apparatuses. The supporting pole is installed to the first slide apparatus, and the antenna is attached to an end of the supporting pole. Each first motor drives the first slide apparatus to move along a lengthwise direction of the connecting pole. Each second motor drives the second slide apparatus to move along a lengthwise direction of the corresponding pole.

Agile Diverse Polarization Multi-Frequency Band Antenna Feed With Rotatable Integrated Distributed Transceivers

A compact, agile polarization diversity, multiple frequency band antenna with integrated electronics for terrestrial terminal use in satellite communications systems is disclosed. The antenna includes an antenna feed having highly integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control of the polarization senses is provided. The arrangement of the integrated distributed transceiver configuration enables the mechanical rotation of the orientation of a first transceiver for skew alignment while a second transceiver remains stationary relative to the antenna feed assembly. The first transceiver can be a high-band transmitter and receiver pair that supports linear polarization senses and the second transceiver can be a low-band transmitter and receiver pair that supports circular polarization senses. The antenna system presented is highly compact and offers improved polarization performance previously achievable by only larger devices. 1. An antenna assembly , comprising:an antenna feed assembly; andfirst and second transceivers mechanically and electromagnetically coupled to respective receive and transmit ports of the antenna feed assembly, the antenna feed assembly being arranged to rotate mechanically an orientation of the first transceiver relative to the second transceiver.2. The antenna assembly of claim 1 , wherein the first and second transceivers operate over first and second radio frequency (RF) bands claim 1 , respectively.3. The antenna assembly of claim 2 , wherein the first RF band includes a range of substantially Ku-band frequencies and wherein the second RF band includes a range of substantially C-band frequencies.4. The antenna assembly of claim 2 , further comprising a dielectric rod configured to facilitate propagation of electromagnetic energy having a frequency within the first RF band ...

MECHANICALLY STEERED AND HORIZONTALLY POLARIZED ANTENNA FOR AERIAL VEHICLES, AND ASSOCIATED SYSTEMS AND METHODS

A mechanically steered, horizontally polarized, directional antennae for aerial vehicles, such as UAVs. The antenna system can include a planar substrate with a horizontally polarized antenna embedded therein. A rotation member, on one end, can be attached to the planar substrate, and can extend from an external surface of the aerial vehicle. An actuator can be coupled to the rotation member to rotate the rotation member. A communication controller of the aerial vehicle can control the actuator to beam horizontally polarized radiofrequency (RF) waves to a target receiver or receive a wave front from a target transmitter. 122-. (canceled)23. An aerial vehicle antenna system , comprising:a rotationally symmetric planar substrate having an upper surface;a horizontally polarized antenna embedded in the substrate and having a length portion aligned with a dominant radiating direction of the antenna and tilted relative to the upper surface of the substrate;a communication controller electrically coupled to the horizontally polarized antenna;a rotation member coupled to the rotationally symmetric planar substrate; anda servo, electrically coupled to the communication controller, and coupled to the rotation member to rotate the rotation member and the rotationally symmetric planar substrate in response to a command from the communication controller.24. The aerial vehicle antenna system of claim 23 , wherein the antenna is embedded in the substrate at an increasing distance away from the upper surface in the dominant radiating direction.25. The aerial vehicle antenna system of claim 23 , wherein the horizontally polarized antenna is a Yagi-Uda antenna claim 23 , a log periodic antenna claim 23 , a slot antenna claim 23 , a single dipole antenna claim 23 , or any combination thereof.26. The aerial vehicle antenna system of claim 23 , wherein the communication controller is configured to actuate the servo to rotate the horizontally polarized antenna-to orient the dominant ...

Antenna structure, remote controller, and unmanned aerial vehicle system

An antenna structure includes a base, a first radiator, and a second radiator. The base is configured to be rotatably connected to a remote controller body of a remote controller of an unmanned aerial vehicle (UAV) system. One ends of the first radiator and the second radiator are connected to the base, and other ends of the first radiator and the second radiator extend away from the base. The first radiator and the second radiator are fixedly connected to the base in a rotation direction relative to the remote controller body and are configured to rotate simultaneously with the base in the rotation direction.

CHANNEL RECONFIGURABLE MILLIMETER-WAVE RADIO FREQUENCY SYSTEM BY FREQUENCY-AGILE TRANSCEIVERS AND DUAL ANTENNA APERTURES

A mobile platform includes an antenna adapted to simultaneously transmit on a first channel and receive on a second channel, and to dynamically switch communication channels as needed. For example, as the mobile platform changes position, orientation, etc., the configuration of the antenna may be updated to transmit on the second channel and receive on the first channel. Accordingly, despite changes in position or orientation, the mobile platform may maintain communication with other mobile platforms, ground controllers, user equipment, etc. 1. A multidirectional antenna , comprising:a first antenna aperture;a frequency-tunable wide-band upconverter coupled to the first aperture, the upconverter adapted to transmit millimeter wave radio frequency signals;a second antenna aperture physically spaced from the first aperture;a frequency-tunable wide-band downconverter coupled to the second antenna, the downconverter adapted to receive millimeter wave radio frequency signals;wherein the upconverter is configured to transmit on one of a first frequency channel or a second frequency channel;wherein the downconverter is configured to receive, concurrently with the transmission by the upconverter, on the second frequency channel if the upconverter is transmitting on the first frequency channel, or on the first frequency if the upconverter is transmitting on the second frequency channel.2. The multidirectional antenna of claim 1 , further comprising one or more processors claim 1 , the one or more processors configured to determine a frequency band being used by the upconverter at a given time claim 1 , and adjust an operating frequency band of the downconverter in response.3. The multidirectional antenna of claim 1 , further comprising one or more processors claim 1 , the one or more processors configured to:receive position information related to the first antenna;determine which frequency channel to use for transmitting and which frequency channel to use for receiving ...

ANTENNA AND UNMANNED AERIAL VEHICLE

The present invention discloses an antenna and an unmanned aerial vehicle, where the antenna is applied to the unmanned aerial vehicle and the unmanned aerial vehicle includes a camera apparatus, the antenna including an antenna body and a bending part connected to the antenna body; and the bending part bends to a direction avoiding a field of view of the camera apparatus. Based on the foregoing technical solutions, in the embodiments of the present invention, it can be ensured that the antenna has a certain effective length to obtain a relatively strong radio signal, and avoids a shooting vision of the camera apparatus at the same time, so that images satisfying user demands are obtained. 1. An antenna , applied to an unmanned aerial vehicle , the unmanned aerial vehicle comprising a camera apparatus , wherein the antenna comprises an antenna body and a bending part connected to the antenna body; and the bending part bends to a direction avoiding a field of view of the camera apparatus.2. The antenna according to claim 1 , wherein the antenna body and the bending part are in a fixed connection.3. The antenna according to claim 1 , wherein the antenna body is hingedly connected to the bending part.4. The antenna according to claim 3 , wherein the antenna is further provided with a limiting structure.5. The antenna according to claim 4 , wherein the antenna body has a first bevel claim 4 , the bending part having a second bevel claim 4 , the second bevel abuts against the first bevel in a state the bending part bending to the antenna body.6. The antenna according to claim 1 , wherein the antenna body extends to a direction perpendicular to the ground.7. The antenna according to claim 6 , wherein the field of view of the camera apparatus is FOV claim 6 , and an angle formed by the antenna body and the bending part is: 90°+FOV/2 or 90°−FOV/2.8. The antenna according to claim 7 , wherein the angle formed by the antenna body and the bending part is: 90°+FOV/2.9. An ...

ARRAY ANTENNA COMMUNICATION SYSTEM AND METHOD THEREFOR

Array antenna communication system is introduced, which is a communication system that receives a location signal generated by a mobile communication apparatus and accordingly transfers a communication signal with a corresponding phase direction. The system includes an array antenna module and a beamforming circuit. The array antenna module includes a plurality of antenna units arranged in array form. The beamforming circuit is used for receiving a plurality of location signals, a plurality of phase control signals, and transferring a plurality of output signals, wherein the beamforming circuit receives the location signal and accordingly generates the corresponding control signal, and controls the corresponding antenna unit of the array antenna module, so as to enable the antenna unit to move to a position corresponding to a phase and to transfer the plurality of output signals, thereby achieving communication signal enhancement. 1. An array antenna communication system , which is a communication system that receives a location signal generated by a mobile communication apparatus and accordingly transfers a communication signal with a corresponding phase direction , the system comprising:an array antenna module, including a plurality of antenna units arranged in array form;a beamforming circuit for receiving a plurality of location signals, a plurality of phase control signals, and transferring a plurality of output signals, wherein the beamforming circuit receives the location signal and accordingly generates the corresponding control signal, and controls the corresponding antenna unit of the array antenna module, so as to enable the antenna unit to move to a position corresponding to a phase and to transfer the plurality of output signals, thereby achieving communication signal enhancement.2. The array antenna communication system according to claim 1 , wherein the mobile communication apparatus includes one of a mobile phone claim 1 , a computer claim 1 , a ...

ANTENNA INSPECTION SYSTEM, ANTENNA INSPECTION APPARATUS AND ANTENNA INSPECTION METHOD

A POL-axis driving unit, an EL-axis driving unit, a Cross-EL-axis driving unit and an AZ-axis driving unit of an antenna apparatus drive respective axis drive motors controlled by a control unit of a control apparatus, such that the antenna performs an origin detection operation for each axis. The camera control unit controls a camera so as to capture an image of the antenna at each timing before and after the origin detection for each axis. An image acquisition unit of an antenna inspection acquires image data that indicates the image of the antenna captured by the camera and makes storage unit store the image data. A comparing diagnosis unit compares image data before the origin detection for each axis with image data after the origin detection, and diagnoses whether the antenna is in a normal state. 1. An antenna inspection system comprising:an antenna that includes a driving unit for driving the antenna;a camera that captures an image of the antenna; an antenna control unit that controls the driving unit such that the antenna performs a programmed operation, and', 'a camera control unit that controls the camera so as to capture an image of the antenna at each timing before a start and after an end of the programmed operation; and, 'a control apparatus that includes'} an image acquisition unit that acquires image data of the antenna that is captured by the camera,', 'a storage unit that stores the image data of the antenna acquired by the image acquisition unit, and', 'a comparing diagnosis unit that compares image data of the antenna before the start of the programmed operation with image data of the antenna after the end of the programmed operation, and diagnoses whether or not the antenna is in a normal state., 'an antenna inspection apparatus that includes'}2. The antenna inspection system according to claim 1 , whereinthe driving unit drive the antenna around a predetermined axis, andthe programmed operation is an origin detection operation for detecting a ...

Matching Method and Apparatus

Embodiments of the present application relate to a matching method. The method includes: selecting, by a base station, a remote electrical tilt unit and sending instruction information to a signal transmitter, where the instruction information is used to instruct the signal transmitter to connect to an antenna radio frequency port corresponding to the remote electrical tilt unit and enable the signal generator to generate a signal. The method also includes receiving, by the base station, the signal when the signal reaches the antenna radio frequency port through a signal coupling unit and is sent by using the antenna radio frequency port. The method also includes selecting, by the base station, a target sector according to a background noise value of each base-station radio frequency port. 1. A method , wherein the method is applied to a remote electrical tilt antenna system , the remote electrical tilt antenna system comprises an antenna radio frequency port , a signal generator , and a remote electrical tilt unit , a signal coupling unit is disposed in the antenna radio frequency port , the signal generator is connected to the signal coupling unit , and any two of the signal generator , the remote electrical tilt unit and a base station remain in a communication connection with each other using an antenna interface standards group (AISG) interface , and the method comprises:selecting, by the base station, the remote electrical tilt unit and sending instruction information to the signal generator, wherein the instruction information instructs the signal generator to connect to an antenna radio frequency port corresponding to the remote electrical tilt unit and enable the signal generator to generate a signal;receiving, by the base station, the signal when the signal reaches the antenna radio frequency port through the signal coupling unit and is sent using the antenna radio frequency port; andselecting, by the base station, a target sector according to a background ...

ANTENNA MODULE, DISPLAY DEVICE, ANTENNA DRIVING METHOD, CONTROL PROGRAM, AND RECORDING MEDIUM

The present disclosure improves the speed at which communication is started by an antenna that is to carry out communication from among a plurality of antennas for near field communication. An information processing device () is provided with a touch panel (), a plurality of NFC antennas (), and a control unit () for controlling the NFC antennas, and starts driving a drive target antenna which is one or more NFC antennas that correspond to a contact position or proximity position of an object detected by the touch panel, from among the plurality of NFC antennas. 1. An antenna module comprising:a touch panel that detects an object that has been brought into contact or proximity;a plurality of near field communication antennas arranged superposing the touch panel; anda control unit that controls the antennas,wherein the control unit starts driving a drive target antenna which is one or more antennas that correspond to a contact position or proximity position of the object detected by the touch panel, from among the plurality of antennas.2. The antenna module according to claim 1 ,wherein the control unit starts driving a most proximate antenna that is nearest the contact position or proximity position, as the drive target antenna.3. The antenna module according to claim 2 ,wherein the control unit starts driving one or more antennas that are adjacent to the most proximate antenna, in addition to the most proximate antenna, as the driving target antenna.4. The antenna module according to claim 1 ,wherein the control unit stops the drive target antenna after communication processing carried out by the drive target antenna has ended.5. The antenna module according to claim 4 ,wherein the control unit once again starts driving the drive target antenna after a prescribed time has elapsed from stopping the drive target antenna.6. The antenna module according to claim 4 ,wherein, in a case where the contact position or proximity position has moved a prescribed distance or ...

TARGET TRACKING CAMERA

A target tracking device transmits a radio frequency beam towards a scene, detects backscatter comprising at least a portion of the RF beam reflected from a reflecting object at the scene, and performs operations that include determining whether the reflecting object is a tracking target, determining a position of the tracking target, and generating tracking information indicative of a position adjustment for maintaining an alignment of the target tracking device and the tracking target. A target tracking method includes transmitting a millimeter wavelength beam in a direction of orientation of a camera, detecting backscatter reflected from a reflecting object, determining whether the reflecting object is a tracking target, and determining a position of the tracking target. If a distance to the tracking target has increased from a prior distance, tracking information indicative of a position adjustment for offsetting the increase in distance may be generated. 1. A target tracking device , comprising:a transmitter configured to transmit a radio frequency beam towards a scene;a receiver configured to detect backscatter comprising at least a portion of the radio frequency beam reflected from a reflecting object; and determining whether the reflecting object is a tracking target;', 'determining a position of the tracking target; and', 'generating tracking information indicative of a position adjustment for maintaining an alignment of the target tracking device and the tracking target., 'a controller configured to perform operations, comprising2. The target tracking device of claim 1 , wherein the transmitter is configured to generate a radio frequency signal and scan the radio frequency signal over a field having a particular width to generate the radio frequency beam.3. The target tracking device of claim 2 , wherein a ratio of a dimension of the tracking target to the wavelength of the radio frequency signal is in the range of approximately 3:1 to approximately 5:1.4. ...

Active Interference Avoidance in Unlicensed Bands

A method for active interference avoidance in unlicensed bands. The method includes receiving an electromagnetic signal having a transmission frequency, a transmission period, and an antenna pattern from a phased array antenna. The method also includes switching the transmission frequency from a first transmission frequency with a first signal to interference and noise ratio to a second transmission frequency with a second signal to interference and noise ratio, wherein the second signal to interference and noise ratio is lower than the first signal to interference and noise ratio. The method further includes selecting a transmission period based on a time when a least amount of signal noise is present on the transmission frequency and selecting an antenna pattern that reduces interference on the selected transmission frequency. 1. A method comprising:receiving an electromagnetic signal having a transmission frequency, a transmission period, and an antenna pattern at a phased array antenna;switching the transmission frequency from a first transmission frequency with a first signal to interference and noise ratio to a second transmission frequency with a second signal to interference and noise ratio, wherein the second signal to interference and noise ratio is lower than the first signal to interference and noise ratio;selecting a transmission period based on a time when a least amount of signal noise is present on the transmission frequency; andselecting an antenna pattern that reduces interference on the selected transmission frequency.2. The method of claim 1 , further comprising:stopping the transmission for a temporary period of time; andmeasuring a signal interface noise ratio of possible transmission frequencies.3. The method of claim 1 , further comprising:receiving a desired transmission frequency from a transmission monitoring device; andswitching the transmission frequency to the desired transmission frequency.4. The method of claim 3 , wherein the ...

Multiple input multiple output imaging array and corresponding imaging method

A multiple input multiple output imaging array for incident angle resolved images with respect to a device under test is provided. The multiple input multiple output imaging array comprises a redundant array of transmit and receive antennas and a controller. In this context, the controller is configured to implement a selection scheme, wherein the selection scheme selects the respective transmit and receive antenna pairs used to create the corresponding image.

METHODS AND SYSTEMS FOR MITIGATING INTERFERENCE WITH A NEARBY SATELLITE

In one embodiment, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when an amount of interference with an adjacent satellite reaches a threshold due to the wide beamwidth axis of the asymmetric antenna beam pattern. 1. An antenna system for mounting on an aircraft , the antenna system comprising:a primary antenna on the aircraft, wherein the primary antenna has a first acceptable service area for transmission of an uplink signal from the aircraft to a target satellite while satisfying an uplink interference requirement with a non-target satellite;a secondary antenna on the aircraft, wherein the secondary antenna has a second acceptable service area for transmission of the uplink signal from the aircraft to the target satellite while satisfying the uplink interference requirement with the non-target satellite, and wherein the second acceptable service area is different than the first acceptable service area; andan antenna selection system to control communication of the uplink signal from the aircraft to the target satellite via the primary antenna and the secondary antenna, wherein the antenna selection system switches transmission of the uplink signal between the primary antenna and the secondary antenna based on a geographic location of the aircraft and the first and second acceptable service areas.2. The antenna system of claim 1 ...

Re-configurable distributed antenna system

A re-configurable distributed antenna system that includes a plurality of base transceiver stations and a plurality of remote antenna units is provided. The plurality of the remote antenna units are configured and arranged to provide communication services for a plurality of coverage zones. A signal router selectively routes signal communication paths between a plurality of base transceiver stations and the plurality of the remote antenna units. At least one memory is configured to store routing scenarios and distributed antenna system configurations associated with the stored routing scenarios. Moreover, at least one controller dynamically controls the signal router to selectively route the signal communication paths between the plurality of base transceiver stations and the plurality of remote antenna units based at least in part on a then current need of communication service capacity within the plurality of coverage zones and the stored coverage routing scenarios.

ANTENNA ANGLE ADJUSTMENT DEVICE, ANTENNA ANGLE ADJUSTMENT METHOD, AND COMMUNICATIONS DEVICE

Provided are an antenna angle adjustment device, an antenna angle adjustment system, an antenna angle adjustment method, and a communications device, whereby the angle of an antenna can be adjusted to a direction in which direct waves can be more reliably received. A direction information generation unit generates direction information indicating a direction of one antenna from another antenna. A range information generation unit generates range information indicating a range of a main beam of the another antenna. A determination unit determines, based on the range information and the direction information, whether or not the one antenna is in a range indicated by the range information. 18-. (canceled)9. An antenna angle adjustment device comprising:a direction information generator that generates direction information indicating a direction of one antenna from another antenna;a range information generator that generates range information indicating a range of a main beam of the another antenna; anda determiner that determines, based on the range information and the direction information, whether or not the one antenna is in the range indicated by the range information.10. The antenna angle adjustment device according to claim 9 , whereinthe direction information generator generates direction information indicating the direction of the one antenna from the another antenna, based on a position indicated by position information according to the one antenna, and a position indicated by position information according to the another antenna.11. The antenna angle adjustment device according to claim 9 , whereinthe range information includes information indicating a range of a half value width around a direction in which the another antenna is directed, and information indicating a direction in which the another antenna is directed.12. The antenna angle adjustment device according to claim 9 , further comprisinga determination result information outputter that outputs ...

Phased Array Antenna Using Stacked Beams in Elevation and Azimuth

A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth.

Systems and methods for a steered beam horn antenna

Systems and methods for a steered beam horn antenna are provided. In one embodiment, a steered beam horn antenna system comprises: a steerable horn antenna comprising: an adjustable flare component; and a waveguide component having a rear port that opens to a waveguide interface and a frontal port that opens to the adjustable flare component. The adjustable flare component includes: a first outer horn plate configured to rotate about a first pivot line; and a second outer horn plate configured to rotate about a second pivot line. The system further comprises at least one actuator and a controller that operates the actuator to position the first and second outer horn plates into asymmetrical positions with respect to a boresight axis of the steerable horn antenna in response to an input command.

TECHNOLOGIES FOR PREDICTIVE ALIGNMENT OF ANTENNA ARRAY OF A VEHICLE

Technologies for aligning an antenna array of a vehicle by a compute device are disclosed. A compute device may control an antenna array to connect to a base station. The compute device may determine one or more movement parameters of the vehicle, such as an indication that the vehicle is going to take a U-turn. The compute device may then control the antenna array to track the base station during the U-turn by physically rotating the antenna array. 1. A compute device for alignment of an antenna array of a vehicle , the compute device comprising: determine a target base station;', 'control the antenna array of the vehicle to form a beam directed at the target base station; and, 'an antenna controller to determine one or more movement parameters of the vehicle; and', 'determine, based on the one or more movement parameters of the vehicle, one or more antenna alignment parameters,, 'device motion determination circuitry towherein the antenna controller is further to control, based on the one or more antenna alignment parameters, a physical orientation of the antenna array of the vehicle so that the beam formed by the antenna array stays directed at the target base station during movement of the vehicle.2. The compute device of claim 1 , wherein to determine the one or more movement parameters of the vehicle comprises to determine a turn movement parameter indicative of a turn of the vehicle of at least 45° claim 1 ,wherein to determine the one or more antenna alignment parameters comprises to determine the one or more antenna alignment parameters based on the turn movement parameter, andwherein to control the physical orientation of the antenna array of the vehicle comprises to control the physical orientation of the antenna array of the vehicle so that the beam formed by the antenna array stays directed at the target base station during the turn of the vehicle of at least 45°.3. The compute device of claim 2 , wherein to determine a turn movement parameter ...

ANTENNA APPARATUS AND RADIO BASE STATION

An antenna apparatus is disclosed including an antenna element; an installation base being a base where the antenna element is installed; a container including an upper surface that opens and housing the antenna element and the installation base, the upper surface being a surface closest to a ground surface when the container is installed in a ground; and a cover being formed of FRP (Fiber-Reinforced Plastics) and covering an opening of the container, wherein the installation base includes a height adjustment mechanism that adjusts a distance from the antenna element to the cover. In other aspects, a radio base station is also disclosed. 1. An antenna apparatus comprising:an antenna element;an installation base being a base where the antenna element is installed;a container including an upper surface that opens and housing the antenna element and the installation base, the upper surface being a surface closest to a ground surface when the container is installed in a ground; anda cover being formed of FRP (Fiber-Reinforced Plastics) and covering an opening of the container,wherein the installation base includes a height adjustment mechanism that adjusts a distance from the antenna element to the cover.2. The antenna apparatus according to claim 1 , wherein two of the antenna elements are installed to the installation base in such a manner that a distance between the two antenna elements is adjustable.3. The antenna apparatus according to claim 1 , wherein the antenna element extends from the installation base in a direction approaching the cover.4. The antenna apparatus according to claim 1 , wherein a drain hole is formed in a lower surface of the container and a through hole is formed in a side surface of the container when the container is installed in a ground.5. A radio base station comprising:{'claim-ref': {'@idref': 'CLM-00004', '#text': 'claim 4'}, '#text': 'the antenna apparatus according to ; and'}a radio equipment installed to the installation base and ...

METHODS FOR SELF-OPTIMIZING SYSTEMS

There is provided a method for self-optimizing a system implementing a process. The method uses a computing arrangement including a processing arrangement and data memory coupled thereto. The computing arrangement includes an output interface for interrogating the system, and an input interface and for receiving measurement responses from the system. The computing arrangement includes a mathematical model of the system to be self-optimized. The method includes using the computing arrangement to configure interrogating data for interrogating the system, and to apply the interrogating data to the system via the output interface. The method further includes using the computing arrangement to collect corresponding measurement response data from the system via the input interface. The method includes using the computing arrangement to compute from the measurement response data one or more measured indicators representing operation of the system. The method further includes using the computing arrangement to compare the one or more measured indicators (I) with one or more corresponding target indicators to compute one or more corresponding performance gaps, wherein the one or more performance gaps are used to select from the mathematical model one or more optimization routines for optimizing a performance of the system. The computing arrangement then applies the one or more optimization routines via the output interface to the system to optimize its performance. 1. A method for self-optimizing a system implementing a process (P) , wherein the method uses a computing arrangement including a processing arrangement and data memory coupled thereto , wherein the computing arrangement includes an output interface for interrogating the system and an input interface and for receiving measurement responses from the system respectively , wherein the computing arrangement includes a mathematical model of the system to be self-optimized , wherein the method includes:(a) using the ...

ELECTRONIC DEVICE

An electronic device includes: a circuit board having a wiring board on which wiring is formed, and an electronic component that is electrically and mechanically connected to the wiring via a first solder. A base is provided to accommodate the circuit board, and has a side wall that faces a side surface of the wiring board. A leaf spring arranged on the circuit board, and is configured to be contactable with the base. The leaf spring includes a fixing portion arranged on the circuit board and a pressing portion extending from and connected to the fixing portion and pressing the side wall, and the pressing portion in a biased state toward a housing establishes a contact thereto when the circuit board is put in and accommodated by the base. 1. An electronic device comprising:a circuit board having (i) a wiring board on which wiring is formed and (ii) an electronic component electrically connected to the wiring via a conductive connecting member and mounted on the wiring board;a housing for accommodating the circuit board and having a side wall facing a side surface of the wiring board; anda leaf spring arranged on the circuit board and capable of contacting the housing, whereinthe leaf spring including at least one fixing portion arranged on the circuit board and at least one pressing portion extending from the fixing portion and pressing the side wall puts the pressing portion in contact with the housing, and, establishes a contact of the pressing portion with the housing.2. The electronic device of claim 1 , whereinthe leaf spring has a connecting portion that connects the fixing portion and the pressing portion that form a pair.3. The electronic device of claim 2 , whereinthe side wall has an adjusting protrusion protruding toward the side surface for every other pressing portions,two adjacent pairs of the fixing portion and the pressing portion have the same length along the pressing direction for pressing the side wall, andthe connecting portion is inclined with ...

ANTENNA STRUCTURE CAPABLE OF TRAMSMITTING A WiGig BAND AND METHOD OF COLLAPSING AND EXTENDING THE ANTENNA STRUCTURE THEREOF

A method for folding and extending an antenna structure capable of transmitting a WiGig band is provided. The method has the following steps: (1) mounting a WiGig module within a base; (2) pivotally arranging the antenna structure on the base; and (3) folding or extending the antenna structure relative to the base to correspondingly reduce or increase the antenna structure for transmitting and receiving a valid range of a wireless signal. The antenna structure has two body portions, and each of the two body portions has a pivoting end and a signal receiving end opposite to the pivoting end. Each of the pivoting ends is pivotally disposed on the base at a first specific angle with respect to a horizontal plane, and each of the signal receiving ends is inclined downward by a second specific angle with respect to the body portion and disposed away from the body portion.

GROUND TO AIR ANTENNA ARRAY

An array antenna with each antenna element in the array being physically tilted away from a base plane of the array. End antenna elements are tilted at a higher angle than regular antenna elements. The radiation pattern, the end antenna elements can provide coverage directly above the antenna array (i.e., at 90 degrees to the horizontal) for different electrical tilts. 2. The antenna array according to claim 1 , wherein the antenna array further comprises:at least one end base plate operatively mounted on an end of the base plane; andat least one end antenna element, each of the at least one end antenna element being mounted on one of the at least one end base plate.3. The antenna array according to claim 2 , wherein at least one of the at least one end base plate is tilted away at a second tilt angle from the base plane of the antenna array.4. The antenna array according to claim 3 , wherein the second tilt angle is greater than each of the individual tilt angle.5. The antenna array according to claim 1 , wherein each of the individual tilt angle of any of said plurality of base plates is between 25 and 30 degrees.6. The antenna array according to claim 3 , wherein the second tilt angle of any of said at least one end base plate is between 50 and 70 degrees.7. The antenna array according to claim 1 , wherein resulting beams from the plurality of antenna elements are electrically beam tilted by a phase-shifter.8. The antenna array according to claim 1 , wherein resulting beams from the antenna array are electrically beam tilted by a phase-shifter.9. The antenna array according to claim 1 , wherein at least one antenna element of the plurality of antenna elements comprises a dual-polarity patch antenna.10. The antenna array according to claim 3 , wherein at least one of the at least one end antenna element comprises a dual-polarity patch antenna.11. The antenna array according to claim 1 , wherein resulting beams are beam tilted by remote control.12. The antenna ...

ANTENNA APPARATUS AND VEHICLE USING THE SAME

An antenna apparatus includes a first antenna unit inclined at a first inclination angle, a second antenna unit inclined in a direction opposite to the first antenna unit at a second inclination angle. A distribution unit distributes an electrical signal to one of the first antenna unit and the second antenna unit. 1. An antenna apparatus comprising:a first antenna unit inclined at a first inclination angle;a second antenna unit inclined in a direction opposite to the first antenna unit at a second inclination angle; anda distribution unit distributing an electrical signal to one of the first antenna unit and the second antenna unit.2. The antenna apparatus of claim 1 , wherein at least one of the first inclination angle and the second inclination angle is adjustable.3. The antenna apparatus of claim 1 , further comprising:a substrate on which the first antenna unit is inclined in a direction of one boundary of the substrate and the second antenna unit is inclined in a direction of another boundary of the substrate.4. The antenna apparatus of claim 3 , wherein the first antenna unit and the second antenna unit are disposed in alternate directions on the substrate.5. The antenna apparatus of claim 1 , wherein the first antenna unit includes:a first antenna radiation unit radiating or receiving an electromagnetic wave; anda first reflection unit having one surface which faces the first antenna radiation unit and providing directivity to the electromagnetic wave radiated from the first antenna radiation unit.6. The antenna apparatus of claim 5 , further comprising:a substrate on which the first antenna unit inclined in a direction of one boundary of the substrate and the second antenna unit is inclined in a direction of another boundary of the substrate; anda first support having one end installed on the first reflection unit, and another end installed on the substrate.7. The antenna apparatus of claim 6 , further comprising:a first rotation shaft member disposed ...

METHODS AND APPARATUS TO FACILITATE IMPROVING MILLIMETER WAVE COMMUNICATIONS VIA DEVICE ORIENTATION ALIGNMENT

Apparatus, methods, and computer-readable media for facilitating improving millimeter wave communications via device orientation alignment are disclosed herein. An example method for wireless communication at a user equipment (UE) includes estimating a direction of a base station serving beam in relation to a spherical coverage mapping of the UE. The example method also includes identifying one or more rotation vectors for adjusting an orientation of the UE based on the direction of the base station serving beam and the spherical coverage mapping. Also, the example method includes applying at least one rotation vector to adjust the orientation of the UE. 1. A method of wireless communication at a user equipment (UE) , comprising:estimating a direction of a base station serving beam in relation to a spherical coverage mapping of the UE;identifying one or more rotation vectors for adjusting an orientation of the UE based on the direction of the base station serving beam and the spherical coverage mapping; andapplying at least one rotation vector to adjust the orientation of the UE.2. The method of claim 1 , further comprising:performing one or more measurements for updating a beam pair link with a base station after the applying of the selected at least one rotation vector.3. The method of claim 1 , wherein the spherical coverage mapping provides a distribution of coverage of the UE in a three-dimensional space.4. The method of claim 3 , wherein the spherical coverage mapping is characterized in terms of at least one of effective isotropic radiated power (EIRP) and effective isotropic sensitivity (EIS).5. The method of claim 1 , wherein the estimating of the direction of the base station serving beam is performed based on one or more of a current UE serving beam claim 1 , one or more measurements of the base station serving beam over a number of UE beams claim 1 , location information of a base station and the UE claim 1 , orientation information of the UE claim 1 , ...

ANTENNA, ROTATING UNIT, WIRELESS COMMUNICATION DEVICE AND ROTATING CONTROLLING METHOD

A rotating unit for controlling an antenna to rotate includes an electromagnetic element and a rotating circuit. The rotating circuit is electrically coupled with the electromagnetic element. The rotating circuit controls the electromagnetic element to generate a magnetic force for controlling a rotation of the antenna. 1. A rotating unit for controlling an antenna to rotate , the rotating unit comprising:an electromagnetic element; anda rotating circuit electrically coupled with the electromagnetic element;wherein the rotating circuit controls the electromagnetic element to generate a magnetic force for controlling a rotation of the antenna.2. The rotating unit of claim 1 , wherein the antenna comprises a housing claim 1 , an antenna end claim 1 , a rotating end claim 1 , and a rotating shaft claim 1 , the antenna end is positioned at a first end of the housing claim 1 , the rotating end is positioned at a second end of the housing opposite to the first end claim 1 , the rotating shaft is positioned between the antenna end and the rotating end claim 1 , the electromagnetic element generates a magnetic force for controlling the rotating end to rotate around the rotating shaft.3. The rotating unit of claim 1 , wherein the rotating circuit comprises a central processing unit (CPU) claim 1 , a D/A converter claim 1 , and a voltage/current converter claim 1 , the CPU is configured to detect a signal receiving/sending strength of the antenna and provide different voltages to the D/A converter according to the detected signal receiving/sending strength; the D/A converter is configured to convert the voltage provided by the CPU from an analog signal to a digital signal claim 1 , and the voltage/current converter is configured to convert the voltage from the D/A converter to a current and outputs the current to the electromagnetic element claim 1 , so as to control the magnetic force and a polarity direction of the electromagnetic element.4. The rotating unit of claim 3 , ...

ANTENNA SYSTEM AND NETWORK DEVICE

Provided are an antenna system and a network device. In an example, the antenna system includes at least one antenna unit and a control apparatus configured to control the at least one antenna unit to rotate, wherein the control apparatus is connected with the at least one antenna unit and an external control device, receives a rotation instruction from the external control device, and controls the at least one antenna unit to rotate to a target angle according to the received rotation instruction. 1. An antenna system , the antenna system being applied to a network device , and comprising:at least one antenna unit and a control apparatus configured to control the at least one antenna unit to rotate,wherein the control apparatus is connected with the at least one antenna unit and an external control device, and configured to receive a rotation instruction from the external control device, and control the at least one antenna unit to rotate to a target angle according to the received rotation instruction.2. The antenna system according to claim 1 , wherein the control apparatus comprises at least one motor;the number of the at least one motor is equal to the number of the at least one antenna unit, and each motor is connected with one antenna unit to drive the connected antenna unit to rotate.3. The antenna system according to claim 2 , wherein a rotation shaft of each motor is fixedly connected with one antenna unit;each motor controls the rotation shaft of the motor to rotate according to the received rotation instruction so as to drive the antenna unit fixedly connected with the rotation shaft of the motor to rotate to the target angle.4. The antenna system according to claim 2 , whereinthe motor is a stepping motor;the rotation instruction carries a rotation direction and a number of rotation steps; andthe target angle is an angle corresponding to the number of rotation steps.5. The antenna system according to claim 1 , wherein each antenna unit comprises one ...

HOLONOMICALLY CONSTRAINED (TETHERED) SPIN-AROUND LOCATOR

An improved two-way tagging tracking and locating system uses time of arrival (TOA), Doppler, and angle of arrival (AOA) in conjunction with remote tags and a locator. The locator's antenna is tethered to a central point, and moved in a constrained motion so that it describes a roughly circular horizontal path. The locator transmits and receives sets of complex radio sequences to/from the tag(s) so that the tag(s) emit signals which are phase, chip, and symbol coherent with the received locator signals. This enables the locator to determine the distances and Doppler shifts between itself and the tag(s) at various positions in its path such that, by post correlation processing of complex captured signal sequences, aims a virtual phased array antenna at the tag(s), resulting in enhanced distance and direction measurements. The angular position of the orbiting locator's antenna may be measured using an electronic compass packaged with the antenna. 1. An enhanced distance and direction locator system , comprising:at least one tag including an RF transponder operative to send and receive complex signal sequences;a locator unit including an antenna and an RF transmitter and receiver operative to send and receive complex signal sequences to and from the tag through the antenna;wherein the locator antenna spins on a tether of a fixed length so as to approximate a circle;a processor at the locator unit operative to perform post-correlation processing of the complex signal sequences to and from the tag to determine the distance and direction to the tag; andwherein the spinning antenna is used by the processor as a virtual phased array antenna aimed at the tag to enhance the distance and direction measurements.2. The enhanced distance and direction locator system of claim 1 , wherein circular motion of the antenna produces a cyclic Doppler shift used to determine tag direction and tag radial velocity.3. The enhanced distance and direction locator system of claim 1 , wherein: ...

Positioning And Self-Calibration Mechanism Using Moving AoA Locator

A system and method for determining a position or a movable device is disclosed. The present system utilizes a movable device equipped with a locator device that has an antenna array such that it may determine the angle of arrival of a plurality of incoming beacon signals. In certain embodiments, the movable device is also able to measure its distance travelled. By knowing its distance moved and the angle of arrival from each beacon, the locator device is able to calculate its position as well as the position of each beacon. This procedure may be executed at regular intervals so that the movable device accurately determines its position.

CLAMPING APPARATUS FOR ANTENNA

A clamping apparatus for an antenna includes: an arm unit coupled to a support pole and extending in one horizontal direction from the support pole by a predetermined distance; a common coupling unit detachably mounted to a front end of the arm unit by insertion and detachment operations of a coupling shaft elongated vertically, the common coupling unit being selectively rotatable from side to side about the coupling shaft; a rotation unit having a front end detachably mounted to a front end of the coupling unit by insertion and detachment operations of a rotary shaft elongated vertically, the rotation unit being rotatable from side to side by a predetermined angle about the rotary shaft; and a tilting unit coupled to the front end of the rotation unit to be tiltable vertically, an antenna device being coupled to the tilting unit.

ANTENNA MONITORING SYSTEM INCLUDING CLOUD BASED SERVER COMMUNICATION VIA CELLULAR TELEPHONE TRANSCEIVER AND RELATED METHODS

An antenna monitoring system includes a cloud based server, and sensor devices, with each sensor device including a portable housing to be mounted on a respective directional antenna, and at least one alignment sensor carried by the portable housing and configured to sense alignment of the respective directional antenna. Each sensor also includes a cellular telephone transceiver carried by the portable housing, and a controller carried by the portable housing, and configured to collect alignment data from the at least one alignment sensor, and communicate with the cloud based server via the cellular telephone transceiver. The cloud based server may include a processor and a memory coupled thereto and configured to provide at least one user interface associated with the alignment data for the sensor devices. 130-. (canceled)31. An antenna monitoring system for a plurality of directional antennas at different geographic antenna sites , the antenna monitoring system comprising:a cloud based server; and at least one alignment sensor configured to sense alignment of the respective directional antenna at the respective geographic antenna site,', 'a cellular transceiver, and', 'a controller configured to collect alignment data from the at least one alignment sensor, and communicate with the cloud based server via the cellular transceiver;, 'a plurality of sensor devices to be mounted at respective directional antennas, each sensor device comprising'}the cloud based server comprising a processor and a memory coupled thereto and configured to cooperate with the controllers of the plurality of sensor devices to provide at least one user interface for reviewing the alignment data, administering thresholds for determining out of bounds conditions of the alignment data, and commissioning and decommissioning sensor devices.32. The antenna monitoring system according to wherein the controller is configured to periodically send the alignment data.33. The antenna monitoring system ...

Ka-BAND HIGH-GAIN EARTH COVER ANTENNA

An antenna system includes a reflector, an offset feed horn and a support platform. The reflector has a reflector surface. The reflector and offset feed horn are attached to the support platform. The offset feed horn transmits RF microwave energy toward the reflector surface. The antenna system further includes a turntable which has a single rotation axis. The turntable rotates about the antenna rotation axis. The support platform is attached to the turntable such that the turntable rotates the support platform. The reflector surface has a perturbed paraboloid geometrical shape that reflects most RF microwave energy along a beam peak pointing direction. The reflector surface reflects RF microwave energy towards the earth's surface in such a manner that the reflected RF microwave energy illuminates a narrow strip of the earth's surface from nadir to a point near the earth's horizon with substantially constant intensity. The offset feed horn is oriented and positioned such that it points away from the beam peak pointing direction. 1. An antenna system comprising:a turntable having a single rotation axis;a support platform attached to the turntable such that the turntable rotates the support platform;a reflector attached to the support platform, the reflector including a reflector surface having a perturbed paraboloid geometrical shape that reflects RF microwave energy along a beam peak pointing direction, the reflector surface reflecting most of the RF microwave energy towards the earth's surface in such a manner that the reflected RF microwave energy illuminates a narrow strip of the earth's surface from nadir to a point near the earth's horizon with substantially constant intensity; andan offset feed horn attached to the support platform to transmit RF microwave energy toward the reflector surface, the offset feed horn being oriented and positioned such that it points away from said beam peak pointing direction.2. The antenna system according to wherein the ...

STABILIZATION SYSTEM FOR SATELLITE TRACKING ANTENNA USING GYRO AND KALMAN FILTER AND STABILIZATION CONTROL METHOD FOR SATELLITE TRACKING ANTENNA

A stabilization control method for a satellite tracking antenna disclosed herein includes outputting a monopulse signal and a gyro signal through a satellite tracking antenna having a gyro mounted thereto, under a situation that disturbance is applied to the satellite tracking antenna, inputting the output monopulse signal and gyro signal into a Kalman filter for stabilization of the satellite tracking antenna, defining a state vector of the Kalman filter based on a pointing-error angle for the satellite tracking, corresponding to the monopulse signal, and a pointing-error angular velocity for the satellite tracking, corresponding to the gyro signal, predicting an original monopulse signal corresponding to a state prior to distortion of the monopulse signal based on the defined state vector, and continuously updating the prediction of the original monopulse signal, and carrying out the stabilization control for the satellite tracking antenna by using the predicted original monopulse signal as a pointing-error-correcting input value. 1. A stabilization control method for a satellite tracking antenna , the method comprising:outputting a monopulse signal and a gyro signal through a satellite tracking antenna having a gyro mounted thereto, under a situation that disturbance is applied to the satellite tracking antenna;inputting the output monopulse signal and gyro signal into a Kalman filter for stabilization of the satellite tracking antenna;defining a state vector of the Kalman filter based on a pointing error angle for the satellite tracking, corresponding to the monopulse signal, and a pointing error angular velocity for the satellite tracking, corresponding to the gyro signal;predicting an original monopulse signal corresponding to a state prior to distortion of the monopulse signal based on the defined state vector, and continuously updating the prediction of the original monopulse signal; andcarrying out the stabilization control for the satellite tracking ...

Monopulse Autotracking System for High Gain Antenna Pointing

A method including receiving a monopulse transmission by a monopulse antenna determining an angle of arrival of the monopulse transmission, using processing circuitry operably coupled to the monopulse antenna, determining, using the processing circuitry, an angle error for a high gain antenna based on the angle of arrival of the monopulse transmission, and causing the positioning of the high gain antenna based on the angle error.

SYSTEM AND METHOD FOR MANAGING MULTIPLE ROVING ASSETS WITH MULTIPLE DIRECTIONAL BROADBAND ANTENNA SYSTEMS

A communications system is provided comprising a first alignment system coupled to a first antenna and configured to establish a communications link with a first communication source; a second alignment system coupled to a second antenna and configured to establish a communications link with a second communication source. The system further includes a controller coupled to the first alignment system and the second alignment system, the controller configured to provide at least one control signal to cause at least one of the first antenna to establish a communications link with the first communication source and the second antenna to establish a communications link with the second communication source. In one embodiment the first alignment system initiates an optimization sequence in response to the first antenna establishing a communications link with the first communications source and wherein the second alignment system initiates an optimization sequence in response to the second antenna establishing a communications link with the second communications source. 1. A communications system comprising:a first alignment system supported by a first roving asset and coupled to a first antenna and a first controller, the first controller configured to provide at least one control signal to cause the first antenna to establish a first communications link with a first communication source;a second alignment system coupled to a second antenna and a second controller, the second controller configured to provide at least one control signal to cause the second antenna to cause the second antenna to establish a communications link with the second communication source;wherein the first alignment system initiates a first optimization sequence in response to the first antenna establishing the first communications link and wherein the second alignment system initiates a second optimization sequence in response to the second antenna establishing the second communications link, and ...

APPARATUSES FOR MOUNTING AN ANTENNA ASSEMBLY

Methods, systems, and devices are described for mounting an antenna assembly to a vehicle, whereby rotational degrees of freedom between the antenna assembly and the vehicle are constrained. For example, an antenna mount may employ an intermediate structure between the antenna assembly and the vehicle. In various examples, the intermediate structure may be coupled with one of the vehicle or the antenna assembly by a linear coupling, and the intermediate structure may be coupled with the other of the vehicle or the antenna assembly by a planar coupling. The antenna assembly may be coupled with the vehicle by a compliant coupling that provides a centering force between the antenna assembly and the vehicle. According to various examples, rotational movement between the antenna assembly and the vehicle may be suppressed, and vibration from the vehicle to the antenna assembly may be attenuated. 1. An apparatus for mounting an antenna assembly to a vehicle , comprising:a first structure;a second structure;a third structure;a linear coupling that couples the first structure with the second structure, the linear coupling constraining relative movement between the first structure and the second structure to be along a linear direction;a planar coupling between the second structure and the third structure that allows relative movement between the second structure and the third structure within a plane that is non-parallel with the linear direction; anda compliant coupling that couples the first structure with the third structure, the compliant coupling providing a centering force between the first structure and the third structure that is based at least in part on a change in relative position between the first structure and the third structure along the linear direction or within the plane,wherein the linear coupling, the planar coupling, and the compliant coupling suppress rotational movement of the third structure relative to the first structure along any axis in the plane ...

INDOOR SATELLITE COMMUNICATION

A system for obstructed satellite communication that comprises an outdoor satellite antenna adapted to receive and transmit an electromagnetic satellite signal at a radiation frequency with a geosynchronous satellite, wherein the outdoor satellite antenna is directed towards the geosynchronous satellite along a line of sight, at least one directional antenna adapted to receive and transmit an obstructed electromagnetic signal at same the radiation frequency, wherein each of the at least one directional antenna comprises a feedhorn that is parallel to the line of sight and opposite in direction from the geosynchronous satellite and wherein the at least one directional antenna is adapted to be mounted on a far side of a physical obstruction away from the geosynchronous satellite, and a relay amplifier device adapted to send and receive the electromagnetic satellite signal and the obstructed electromagnetic signal between respective the outdoor satellite antenna and the at least one directional antenna. 1. A system for obstructed satellite communication , comprising:an outdoor satellite antenna adapted to receive and transmit an electromagnetic satellite signal at a radiation frequency with a geosynchronous satellite, wherein said outdoor satellite antenna is directed towards said geosynchronous satellite along a line of sight;at least one directional antenna adapted to receive and transmit an obstructed electromagnetic signal at same said radiation frequency, wherein each of said at least one directional antenna comprises a feedhorn that is parallel to said line of sight and opposite in direction from said geosynchronous satellite and wherein said at least one directional antenna is adapted to be mounted on a far side of a physical obstruction away from said geosynchronous satellite; anda relay amplifier device adapted to send and receive said electromagnetic satellite signal and said obstructed electromagnetic signal between respective said outdoor satellite antenna ...

ANTENNA MOUNT

A mount for an antenna includes: a plurality of horizontal members; and a plurality of vertical members interconnected with the horizontal members, the vertical members configured and arranged for mounting of at least one antenna. At least one of the horizontal members and/or the vertical members has a cross-section that reduces drag under wind load. 1. A mount for an antenna , comprising:a plurality of horizontal members; anda plurality of vertical members interconnected with the horizontal members, the vertical members configured and arranged for mounting of at least one antenna;wherein at least one of the horizontal members and/or the vertical members has a cross-section that reduces drag under wind load.2. The mount defined in claim 1 , wherein at least one of the vertical members has a cross-section that reduces drag under wind load.3. The mount defined in claim 2 , wherein the vertical member has an airfoil or fusiform cross-section.4. The mount defined in claim 1 , wherein at least one of the horizontal members has a cross-section that reduces drag under wind load.5. The mount defined in claim 4 , wherein the horizontal member has an airfoil or a fusiform cross-section.6. The mount defined in claim 4 , wherein the horizontal member has a surface textured to provide lift under wind load.7. The mount defined in claim 6 , wherein the textured surface of the horizontal member comprises dimples.8. The mount defined in claim 6 , wherein the textured surface of the horizontal member is an upper surface of the horizontal member.9. A mount for an antenna claim 6 , comprising:a plurality of horizontal members; anda plurality of vertical members interconnected with the horizontal members, the vertical members configured and arranged for mounting of at least one antenna;wherein at least one of the horizontal members is configured to provide lift under wind load.10. The mount defined in claim 9 , wherein the horizontal member has a cross-sectional shape that provides lift ...

A STABILIZED PLATFORM FOR A WIRELESS COMMUNICATION LINK

A terrestrial data communications wireless link includes a first link end that has a first directional antenna, a first beacon and a first redirecting assembly coupled to the first directional antenna. The wireless link also includes a second link end having a second directional antenna, a second beacon and a second redirecting assembly coupled to the second directional antenna. In use the first directional antenna and the second directional antenna are maintained in mutual alignment by the first redirecting assembly redirecting the first directional antenna in response to a signal from the second beacon and the second redirecting assembly redirecting the second directional antenna in response to a signal from the first beacon. 1. An apparatus comprising a link end for a terrestrial communications link including:a directional antenna;a redirecting assembly mounted to the directional antenna;one or more actuators coupled to the redirecting assembly;a control system arranged to control the redirecting assembly in response to variations in the strength of a terrestrial beacon signal.2. An apparatus according to claim 1 , including an antenna feed to transmit and receive a main data signal and to receive the beacon signal claim 1 , the antenna feed including a horn defining a boresight for propagation of the main data signal therealong and second horn parallel thereto to or integrated therewith to receive said beacon signal.3. An apparatus according to claim 1 , including an antenna feed to transmit and receive a main data signal and to receive said beacon signal claim 1 , the antenna feed including an elongated bore having a boresight for propagation of the main data signal and one or more pairs of slots disposed on either side of the main bore and parallel thereto to receive said beacon signal.4. An apparatus according to claim 1 , wherein the redirecting assembly comprises a two axis gimbal.5. An apparatus according to claim 4 , wherein the control system includes an ...

ANTENNA FOR SATELLITE COMMUNICATION HAVING STRUCTURE FOR SWITCHING MULTIPLE BAND SIGNALS

The present invention discloses an antenna for satellite communication having a structure for switching multiband signals. The antenna for satellite communication according to an embodiment of the present invention includes a main reflecting plate configured to be rotatable in a predetermined direction so as to be oriented in a direction in which a satellite is located, a first feed horn configured to be detachably installed in a region of an edge of the main reflecting plate, a sub-reflecting plate configured to be installed so as to be spaced apart from a reflecting surface of the main reflecting plate by a predetermined distance by at least one support means provided in a region of the main reflecting plate, and a second feed horn configured to be detachably installed on a side opposite to the reflecting surface of the sub-reflecting plate, wherein an installation position of the sub-reflecting plate is changeable. 1. An antenna for satellite communication having a structure for switching multiband signals , which is installed in a mobile body , the antenna for satellite communication comprising:a main reflecting plate configured to be rotatable in a predetermined direction so as to detect a satellite signal;a sub-reflecting plate configured to be installed so as to be spaced apart from the main reflecting plate by a predetermined distance by at least one support means installed in an edge region of a reflecting surface of the main reflecting plate;a first feed horn configured to transmit a first band signal to a satellite through the main reflecting plate via the sub-reflecting plate or receive the first band signal from the satellite; anda second feed horn configured to be electrically separated from the sub-reflecting plate, form a structure integrated with the sub-reflecting plate, and transmit a second band signal to the satellite through the main reflecting plate or receive the second band signal from the satellite,wherein the structure in which the sub- ...

METHOD AND APPARATUS FOR INCREASING CHANNEL CAPACITY IN LINE OF SIGHT ENVIRONMENT

A multiple-input and multiple-output (MIMO) communication method and apparatus is disclosed. The MIMO communication method may include setting a target channel capacity between at least one transmitting antenna and at least one receiving antenna, calculating a current channel capacity between the transmitting antenna and the receiving antenna based on a transmission signal output from the transmitting antenna, and in response to the current channel capacity not meeting the target channel capacity, changing an arrangement or an attribute of the transmitting antenna or the receiving antenna to adjust the to transmission signal output from the transmitting antenna. 1. A multiple-input and multiple-output (MIMO) communication method , the method comprising:setting a target channel capacity between at least one transmitting antenna and at least one receiving antenna;calculating a current channel capacity between the at least one transmitting antenna and the at least one receiving antenna based on a transmission signal output from the at least one transmitting antenna;in response to the current channel capacity not meeting the target channel capacity, changing an arrangement or an attribute of the at least one transmitting antenna or the at least one receiving antenna, or a group to which the at least one transmitting antenna or the at least one receiving antenna belongs to adjust the transmission signal output from the at least one transmitting antenna.2. The method of claim 1 , wherein the changing comprises:changing the arrangement or the attribute of the at least one transmitting antenna or the at least one receiving antenna to adjust a phase of the transmission signal.3. The method of claim 1 , wherein the changing comprises:changing the arrangement or the attribute of the at least one transmitting antenna or the at least one receiving antenna, or the group to which the at least one transmitting antenna or the at least one receiving antenna belongs to adjust an ...

ANTENNA FOR SATELLITE COMMUNICATION HAVING STRUCTURE FOR SWITCHING MULTIPLE BAND SIGNALS

The present invention discloses an antenna for satellite communication having a structure for switching multiband signals. The antenna for satellite communication according to an embodiment of the present invention includes a main reflecting plate configured to be rotatable in a predetermined direction so as to be oriented in a direction in which a satellite is located, a first feed horn configured to be detachably installed in a region of an edge of the main reflecting plate, a sub-reflecting plate configured to be installed so as to be spaced apart from a reflecting surface of the main reflecting plate by a predetermined distance by at least one support means provided in a region of the main reflecting plate, and a second feed horn configured to be detachably installed on a side opposite to the reflecting surface of the sub-reflecting plate, wherein an installation position of the sub-reflecting plate is changeable. 1. An antenna for satellite communication having a structure for switching multiband signals , which is installed in a mobile body , the antenna for satellite communication comprising:a main reflecting plate configured to be rotatable in a predetermined direction so as to detect a satellite signal;a sub-reflecting plate configured to be installed so as to be spaced apart from the main reflecting plate by a predetermined distance by at least one support means installed in an edge region of a reflecting surface of the main reflecting plate;a first feed horn configured to transmit a first band signal to a satellite through the main reflecting plate via the sub-reflecting plate or receive the first band signal from the satellite; anda second feed horn configured to be electrically separated from the sub-reflecting plate, form a structure integrated with the sub-reflecting plate, and transmit a second band signal to the satellite through the main reflecting plate or receive the second band signal from the satellite,wherein the structure in which the sub- ...

ELECTRONIC APPARATUS AND PROCESSING METHOD OF AN ELECTRONIC APPARATUS

According to one embodiment, an electronic apparatus includes an antenna module, a wireless communicator, an acquisition module and an adjuster. The wireless communicator is configured to wirelessly communicate via the antenna module. The acquisition module is configured to acquire signal strength of a radio signal received by the antenna module from the wireless communicator. The adjuster is configured to adjust a position of an antenna of the antenna module based on the signal strength of the radio signal acquired by the acquisition module. 1. An electronic apparatus comprising:an antenna module;a wireless communicator configured to wirelessly communicate via the antenna module;an acquisition module configured to acquire signal strength of a radio signal received by the antenna module from the wireless communicator; andan adjuster configured to adjust a position of an antenna of the antenna module based on the signal strength of the radio signal acquired by the acquisition module.2. The apparatus of claim 1 , wherein:the antenna module comprises a plurality of antennas; andthe adjuster is configured to adjust the position of the antenna by selecting an antenna which has the least value of the signal strength of the radio signal acquired by the acquisition module from the plurality of antennas.3. The apparatus of claim 2 , further comprising a detector configured to detect a moving object around the apparatus based on variation of the signal strength of the radio signal acquired by the acquisition module.4. The apparatus of claim 3 , further comprising a receiver configured to receive an actuation instruction of moving object detection claim 3 ,wherein the adjuster is configured to execute the position adjustment of the antenna of the antenna module when a first period is passed after the reception of actuation instruction of the moving object detection by the receiver.5. The apparatus of claim 2 , further comprising a transmitter configured to transmit information ...

ANTENNA ROTATOR

An antenna rotator includes a housing having an access port disposed therethrough. Positioned within the housing and proximate to the access port is an interface connector. The interface connector provided by the housing is configured to be removably attached to a module connector provided by a detection module, which may include a sensor for detecting a position of an encoder that is rotated by a motor drive within the housing. As a result, the detection module, which is highly susceptible to electrical damage from lightning, can be conveniently accessed and replaced. 1. An antenna rotator comprising:a housing having an access port;a motor drive assembly carried in said housing, said motor drive assembly adapted to rotate an antenna attached thereto;an interface connector carried in said housing and positioned proximate to said access port, said interface connector coupled to a power supply line and a position detection line; anda detection module proximate to said access port and removably attached to said interface connector so as to communicate with said power supply line and said antenna position detection line, said detection module configured to detect a rotating position of a component of said motor drive assembly.2. The antenna rotator of claim 1 , wherein at least a portion of said detection module extends through said access port.3. The antenna rotator of claim 1 , wherein said detection module includes a cover to seal said access port.4. The antenna rotator of claim 3 , wherein said detection module includes a lock mechanism to selectively secure said detection module to said housing.5. The antenna rotator of claim 4 , wherein said lock mechanism is receivable in an aperture disposed in said housing to selectively retain said interface module to said housing.6. The antenna rotator of claim 5 , wherein said lock mechanism is carried by said cover.7. The antenna rotator of claim 1 , wherein said detection module includes a position sensor configured to ...

SCALABLE ANTENNA ARRAY

In one scenario, a pillbox array is provided. The pillbox array includes a feed network unit that receives an input wave. The feed network unit includes feed branches for splitting and transmitting the input wave, pillbox reflectors that collimate the input wave, and radiating waveguides for radiating the collimated input wave. The pillbox array further includes a load plate mounted on the feed network unit, where the load plate has load elements placed between the radiating waveguides. This pillbox array also includes a polarizer plate that is mounted on the load plate and the feed network unit. The polarizer plate includes polarizers arranged such that when the polarizer plate is laterally shifted to a first side of the radiating waveguides, a first circular polarization occurs, and when the polarizer plate is laterally shifted to a second side of the radiating waveguides, a second circular polarization occurs. 1. A pillbox array comprising: a plurality of feed branches for splitting and transmitting the input wave;', 'a plurality of pillbox reflectors that are configured to collimate the input wave to thereby produce a wave of equal phase front; and', 'a plurality of radiating waveguides for radiating the collimated input wave;, 'a feed network unit that is configured to receive an input wave, the feed network unit includinga load plate mounted on the feed network unit, the load plate including a plurality of load elements that are placed between the plurality of radiating waveguides; and wherein when the polarizer plate is laterally shifted so that the plurality of polarizers are located on a first side of the plurality of radiating waveguides, a first circular polarization occurs, and', 'wherein when the polarizer plate is laterally shifted so that the plurality of polarizers are located on a second side of the plurality of radiating waveguides, a second circular polarization occurs., 'a polarizer plate that is mounted on the load plate and the feed network ...

Antenna measurement system and method for positioning an antenna

An antenna measurement system is provided. The antenna measurement system comprises an antenna and a device under test. the antenna comprises a light emitting unit which is integrated in the antenna. Advantageously, the antenna can be positioned with respect to the device under test in an efficient and cost-saving manner.

ANTENNA ORIENTATION ADJUSTMENT DEVICE AND ANTENNA ORIENTATION ADJUSTMENT METHOD

An antenna orientation adjustment device () include a camera (), nut runners ( and ), and a motion controller (). The nut runners ( and ) can be mounted on an azimuth adjustment bolt () and an elevation adjustment bolt (), respectively. The nut runners ( and ) change the orientation of an antenna unit by applying motor power to the azimuth adjustment bolt () and the elevation adjustment bolt (). The motion controller () calculates an angle position of the antenna unit () where a reception strength is maximum based on an image taken by the camera () and a reception strength of radio waves received by the antenna unit (), and then adjusts the antenna unit () to the angle position where the reception strength is maximum by supplying a drive signal to the azimuth adjustment bolt () and the elevation adjustment bolt (). 1. An antenna orientation adjustment device comprising:a camera that is fixed relative to an antenna unit;a motor-driven unit that can be mounted on an orientation adjustment part and changes an orientation of the antenna unit by applying a force of motor power to the orientation adjustment part; anda motion controller that adjusts the orientation of the antenna unit by supplying a drive signal to the motor-driven unit, whereinthe motion controller obtains an angle position of the antenna unit based on an image taken by the camera and a reception strength of radio waves received by the antenna unit, and adjusts the angle position of the antenna unit by supplying a drive signal to the motor-driven unit.2. The antenna orientation adjustment device according to claim 1 , wherein the motion controller acquires a relationship between the orientation of the antenna unit and the reception strength claim 1 , changing the orientation of the antenna unit within a specified range by supplying a drive signal to the motor-driven unit.3. The antenna orientation adjustment device according to claim 1 , wherein the motion controller obtains an angle position of the ...

Pneumatically Driven Steerable Antenna Array

Methods and systems for a steerable antenna array are disclosed. The antenna array includes an array of antenna elements aligned in rows and columns on a substrate. Additionally, the antenna array includes a microstrip feed within the substrate, where the feed is configured to electromagnetically couple to each antenna element of the array of antenna elements. The antenna array further includes a ground plane within the substrate. Additionally, for each antenna element, the antenna array includes a first cavity disposed between the ground plane and feed, and a second cavity disposed on the other side of the ground plane from the first cavity. The antenna array further includes a plurality of fluid lines configured to selectively add or remove fluid from the cavities coupled to the fluid line and cause a deflection of the ground plane in a region of the cavities coupled to the fluid line. 1. An antenna array , comprising:an array of antenna elements disposed on a substrate, wherein the array comprises antennas aligned in rows and columns, wherein each row comprises at least two antennas and each column comprises at least one antenna;a microstrip feed within the substrate, wherein the microstrip feed is configured to electromagnetically couple to each antenna element of the array of antenna elements;a ground plane within the substrate; a first cavity disposed between the ground plane and feed, and', 'a second cavity disposed on the other side of the ground plane from the first cavity;, 'for each antenna element and located below the respective antenna element within the substratea plurality of fluid lines, wherein there is one respective fluid line for each column and the respective fluid line is coupled to one of the first cavities and the second cavities of the column; andwherein at least one fluid line is configured to selectively add or remove fluid from the cavities coupled to the fluid line and cause a deflection of the ground plane in a region of the cavities ...

COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS

The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns. 1. A communications satellite for providing a communications service via a plurality of beamformed spot beams , the communications satellite comprising:an antenna assembly operable for communicating signals of the plurality of beamformed spot beams, the antenna assembly comprising a feed array assembly having a plurality of antenna feed elements for communication of the signals, a reflector for reflecting the signals communicated between the feed array assembly and one or more target devices, wherein the antenna assembly provides a native antenna pattern via the feed array assembly that is a composite of native feed element patterns of the plurality of antenna feed elements, and wherein the native antenna pattern is selectable from among a plurality of native antenna patterns, each of the plurality of native antenna patterns corresponding to a defocused position of the feed array assembly relative to the reflector and having a native feed element pattern associated with a given antenna feed element that is different relative to another of the plurality of ...

MULTIBAND ANTENNA TRANSMISSION DEVICE

A multiband antenna transmission, including: a driving gear, a shifter, and a plurality of screw assemblies. The position and the driving gear are coaxially and rotatably arranged, and the shifter comprises a plate and a boss protruding from a side of the plate. The plurality of screw assemblies are arranged in a circumferential direction of the driving gear. Each of the plurality of screw assemblies includes: a lead screw, a driven gear selectively connected with or separated from the lead screw, and a first elastic member arranged between the lead screw and the driven gear. The boss is configured to sequentially push the driven gear of the respective screw assembly during rotation of the shifter, such that the driven gear is connected with the corresponding lead screw and whereby the driven gear is in mesh with the driving gear for transmission. 1. A multiband antenna transmission , comprising:a driving gear;a shifter, wherein the position and the driving gear are coaxially and rotatably arranged, and the shifter comprises a plate and a boss protruding from a side of the plate; anda plurality of screw assemblies, arranged in a circumferential direction of the driving gear, with each of the plurality of screw assemblies comprising: a lead screw, a driven gear selectively connected with or separated from the lead screw, and a first elastic member arranged between the lead screw and the driven gear;whereinthe boss is configured to sequentially push the driven gear of the respective screw assembly during rotation of the shifter, such that the driven gear is connected with the corresponding lead screw and whereby the driven gear is in mesh with the driving gear for transmission.2. The multiband antenna transmission of claim 1 , wherein each of the plurality of screw assemblies further comprises a second elastic member arranged for the corresponding driven gear claim 1 , a distal end of the second elastic member from the driven gear faces the shifter claim 1 , and when ...

Hierarchically Elaborated Phased-Array Antenna Modules and Method of Calibration

An apparatus consisting of hierarchically elaborated antenna modules is calibrated by steps. Although the AWV can be calculated mathematically based on the required phase shift values of each antenna element for a beam direction to compensate for signal delay. However, in practice, due to hardware implementation imperfection, coupling in signal path for each antenna element within hardware, inaccuracies of implementations, physical misalignment, the mathematically generated AWV does not necessarily provide alignment between transmit beam and receive beam. This subset is sufficient is all practical operation. The subset of AWVs are typically called codebook and the receiver beam points to different direction by using a AWV within the codebook. 1. A method to calibrate antenna weight vectors for a large phased-array antenna(antenna) , the method comprising:decomposing the antenna into a plurality (L) of receive subarrays, and an identical plurality of transmit subarrays of equal size;orienting an antenna platform supporting the large array to cause peaking of the array received power from a test horn; anddetermining for each receive sub-array of the L receive sub-arrays, a receive beam from the codebook of the receiver antenna weight vector (AWV) for the whole array.2. The method of further comprising obtaining a sub-array transmit beam by exhaustively searching through all possible AWVs on the condition that number of all possible transmit sub-array AWVs are reasonable.3. The method of further comprising obtaining a sub-array transmit beam by applying a hill climbing strategy on a gradient of the received power as a function of the AWV in an optimized search.4. The method of further comprising obtaining a sub-array transmit beam by geometric direction relative to the antenna plane of the receive subarray and using mathematically derived AWV for that direction.5. The method of further comprising searching a small solid angle around the geometric direction to account ...

Mobile Terminal Antenna Alignment Using Arbitrary Orientation Attitude

Systems and methods for aligning a satellite antenna mounted on a mobile platform to the platform. At each of several arbitrary orientations, a first directional vector is determined from the antenna to a satellite. For each orientation, an alias transformation is performed to transform the first vector having coordinates defined with respect to a first reference frame to a second vector having coordinates defined with respect to a second reference frame. A third vector is determined based on the orientation of the antenna after peaking the antenna. A rotation matrix is derived from the collection of second and third vectors. An estimate of the rotational offset of the satellite antenna with respect to the platform is determined based on the rotation matrix. The rotational offset is applied to the attitude of the platform to accurately point the antenna to the satellite. 1. An antenna alignment module (AAM) comprising:a. a first output port through which the AAM provides control signals to control the position of a satellite antenna; [ 1. receiving information indicating the location of a platform and the location of a satellite;', {'sub': i', 'i, '2. determining a first vector {right arrow over (d)}from the satellite antenna to the satellite based on the location of the platform and the location of the satellite, the first vector {right arrow over (d)}being represented by coordinates defined with respect to a first reference frame;'}, '3. receiving information indicating the attitude of a position and attitude measurement device (PAMD) when the platform is in the first orientation the attitude of the PAMD, the platform and the antenna remaining essentially unchanged with respect to each other as the orientation of the platform changes; and', {'sub': i', 'i', 'i, '4. determining a second vector {right arrow over (d)}′by performing an alias transformation on the first vector {right arrow over (d)}, the alias transformation transforming the coordinates of the first ...

SYSTEMS, APPARATUS, AND METHODS FOR SELECTING ANTENNAS

According to principles of the embodiments as disclosed herein, a device that determines its own orientation and selects an appropriately oriented antenna based on the device's orientation is provided. The device may include a housing including an interior having a base and a top and a first sidewall extending from a perimeter of the base to the top. A plurality of antenna may be coupled to the housing one or more orientation sensors may also be coupled to the housing. A controller may be electrically coupled to each of the plurality of antenna and the one or more orientation sensors, and may be configured to receive information from the one or more orientation sensors, determine an orientation of the housing, and select one of the plurality of antenna to transmit and receive data. A transceiver may be located within the housing and at least one of the plurality of antenna may be being electrically coupled to the antenna. 1. A set top box , comprising:a housing including an interior having a base and a top and a first sidewall extending from a perimeter of the base to the top;a plurality of antenna coupled to the housing;one or more orientation sensors coupled to the housing;a controller coupled to the housing and electrically coupled to each of the plurality of antenna and the one or more orientation sensors, the controller configured to receive information from the one or more orientation sensors, determine an orientation of the housing, and select one of the plurality of antenna;a transceiver within the housing, the controller configured to selectively couple the transceiver to one or more of the plurality of antenna.2. The set top box of claim 1 , wherein a first of the plurality of antenna is in a first orientation and a second of the plurality of antenna is in a second orientation.3. The set top box of claim 1 , further comprising:an electric motor coupled to a first antenna of the plurality antenna and electrically coupled to the controller, the controller ...

Apparatus and method for use in controlling the positioning of an antenna

An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to: map the value of a radio channel key performance indicator throughout a generally repeating cycle for two or more positions of an antenna of a first device, the value of the radio channel key performance indicator varying with changes in a radio environment between the first device and a second device for a given antenna position; and use the mapped value of the radio channel key performance indicator to determine at least one position of the antenna for use in controlling the positioning of the antenna to achieve at least one acceptable value of the radio channel key performance indicator.

HYBRID ANALOG/DIGITAL BEAMFORMING

An apparatus includes a plurality of feeds that form analog beams. The plurality of feeds is divided into a plurality of panels, each panel including one or more feeds from the plurality of feeds. The apparatus also includes processing circuitry, which determines a target area for communications coverage and divides the target area into a plurality of regions. The processing circuitry generates, for each region, a plurality of analog beams. A subset of panels of the plurality of panels generates one or more analog beams of the plurality of analog beams. The plurality of analog beams covering each region forms a cluster. The processing circuitry generates, in each cluster, one or more hybrid beams. Each hybrid beam is a digital beam that is generated by combining one or more analog beams of the plurality of analog beams corresponding to the cluster. 1a plurality of feeds configured to form analog beams, wherein the plurality of feeds is divided into a plurality of panels, each panel including one or more feeds from the plurality of feeds; and determining a target area for communications coverage;', 'dividing the target area into a plurality of regions;', 'generating, for each region, a plurality of analog beams, wherein a subset of panels of the plurality of panels generates one or more analog beams of the plurality of analog beams, and wherein the plurality of analog beams covering each region forms a cluster; and', 'generating, in each cluster, one or more hybrid beams, wherein each hybrid beam is a digital beam that is generated by combining one or more analog beams of the plurality of analog beams corresponding to the cluster., 'processing circuitry that is configured to perform operations comprising. An apparatus comprising: This application is a continuation of U.S. application Ser. No. 15/720,828, filed Sep. 29, 2017, which claims the benefit of U.S. Provisional Application No. 62/402,028, filed Sep. 30, 2016; U.S. Provisional Application No. 62/451,043, filed ...

SYSTEMS UTILIZING INTEGRATED ROOFING ACCESSORIES FOR CONTROLLING DIRECTIONS OF COMMUNICATIONS AND METHODS OF USE THEREOF

Systems and methods of the present disclosure include controlling directions of communications including a processor to obtain performance data of an integrated roofing accessory installed on a roof, the integrated roofing accessory including an antenna and a transceiver to enable fifth generation cellular networking (5G) protocol communication with a 5G-enabled device, and an adjustable attachment to orient or position the antenna. The performance data is indicative of 5G signal performance between the integrated roofing accessory and the 5G-enabled device. A signal performance affecting condition is determined using the performance data, where the signal performance affecting condition is a reduced signal performance of a 5G signal beam of the antenna. An improved orientation or an improved position of the antenna is determined to remedy the signal performance affecting condition. The adjustable attachment is controlled to physically adjust he orientation of the position to achieve the improved orientation or position. 1. A method comprising: [ at least one antenna and at least one transceiver to enable fifth generation cellular networking (5G) protocol communication with at least one 5G-enabled device, and', 'at least one adjustable attachment configured to at least one of orient or position the at least one antenna;, 'wherein the integrated roofing accessory comprises, 'wherein the performance data is indicative of 5G signal performance between the integrated roofing accessory and the at least one 5G-enabled device;, 'obtaining, by at least one processor, performance data of an integrated roofing accessory installed on a roof;'} 'wherein the signal performance affecting condition is a reduced signal performance of at least one 5G signal beam emitted by the at least one antenna according to control by the at least one transceiver;', 'determining, by the at least one processor, a signal performance affecting condition based, at least in part, on the performance ...

SYSTEMS AND METHODS ARE PROVIDED FOR UTILIZING RANDOMIZED ARRAY OFFSETS IN PHASED ARRAYS

Systems and methods are provided for utilizing randomized array offsets in phased arrays. A phased array based system may include a plurality of antenna elements arranged in two-dimensional array, and a plurality of transceiver circuits, with each transceiver circuit configured for handling transmission and reception of radio frequency (RF) signals via the plurality of antenna elements. One or more transceiver circuits in the system may be configured for applying one or more randomized adjustments to one or more particular signal processing related functions applied during the transmission and reception of RF signals. The randomized adjustments may include randomized offsets to conversions applied during processing of transmitted and/or received signals. The conversion may include one or both of digital-to-analog conversions and analog-to-digital conversions. The offsets may be randomized based on indexes identifying corresponding antenna elements. 1. A system , comprising:a plurality of antenna elements arranged in two-dimensional array; anda plurality of transceiver circuits configured for handling transmission and reception of radio frequency (RF) signals via the plurality of antenna elements;wherein one or more transceiver circuits are configured for applying one or more randomized adjustments to one or more particular signal processing related functions applied during the transmission and reception of RF signals.2. The system of claim 1 , wherein each of the one or more transceiver circuits is configured for generating the one or more randomized adjustments based on corresponding one or more antenna elements in the plurality of antenna elements.3. The system of claim 2 , wherein each of the one or more transceiver circuits is configured for generating the one or more randomized adjustments as a function of indexes identifying the corresponding one or more antenna elements in the plurality of antenna elements.4. The system of claim 1 , wherein:the signal ...

DEVICES, SYSTEMS AND METHODS FOR AIMING DIRECTIONAL ANTENNAS

Disclosed are devices, systems and methods that mix using an omnidirectional and directional antenna to ensure a minimum performance of the omnidirectional antenna while creating the possibility that the directional antenna will find the optimal direction to point and thus increase signal levels over what the omnidirectional antenna would provide by itself. This allows higher signal levels which results in more reliable communication and higher data throughput. 1. A tunable communication device comprising:a first antenna having a first directionality, in communication with a remote end of a wireless communications link having an unknown location;a second antenna having a second directionality greater than the first directionality, in communication with the remote end of the wireless communications link wherein the second antenna is configurable to be steered to one of a pre-defined orientation wherein at least one of the pre-defined orientations aims towards the remote end of the wireless communications link;an antenna driver configured to control an orientation of the second antenna; anda comparator algorithm configured to evaluate a quality of one or more input signals from each of the first antenna and the second antenna and to compare at least one input signal from each of the first antenna and the second antenna to generate a route signal to instruct the antenna driver to steer the second antenna towards an orientation,wherein the comparator determines a quality of each of a first input from the first antenna and a second input from the second antenna to identify which of the first input and the second input has a higher quality and further wherein if the first input from the first antenna has a higher quality, the first antenna signal is selected and a line feed is routed to an output where a set of search and optimization instructions are executed and the antenna driver is adjusted to an orientation of the second antenna, and if the second input from the ...

TWO-DIMENSIONAL SCANNING CYLINDRICAL REFLECTOR

A parabolic cylindrical reflector antenna that comprises two or more antenna feeds each directed towards a parabolic cylindrical reflector, wherein the antenna feeds are positioned in one or more line-arrays parallel to a focal line of the parabolic cylindrical reflector, and the line-array is substantially centered opposing the reflector. The antenna comprises a controller configured to scan along a straight edge of the reflector by electronically adjusting a phase of each of the antenna feeds, thereby changing the incident angle of an energy beam relative to the reflector. The controller is configured to scan along a curved edge of the reflector by moving, using a mechanical positioning mechanism, the antenna feeds in a direction parallel to a directrix of the reflector while maintaining the positioning or by electronically selecting one of two or more parallel line-arrays. 1. A parabolic cylindrical reflector antenna comprising:a parabolic cylindrical reflector;a plurality of antenna feeds each directed towards said parabolic cylindrical reflector, wherein said plurality of antenna feeds are positioned in at least one line-array parallel to a focal line of said parabolic cylindrical reflector, and wherein said at least one line-array is substantially centered opposing said parabolic cylindrical reflector; and scan along a straight edge of said parabolic cylindrical reflector by electronically adjusting a phase of each of said plurality of antenna feeds, thereby changing the incident angle of an energy beam relative to the vertex line of said parabolic cylindrical reflector, and', (a) moving, using a mechanical positioning mechanism, said plurality of antenna feeds in a direction parallel to a directrix of said parabolic cylindrical reflector while maintaining said positioning; and', '(b) electronically selecting one of said at least one line-array, wherein said selecting comprises selecting from two or more parallel linear arrays., 'scan along a curved edge of ...

Dish antenna and method for manufacturing bracket thereof

A dish antenna is provided. The dish antenna includes a dish, a bracket, a supporter and a receiver. The bracket is connected to the dish. The supporter is connected to the bracket. The receiver is connected to the supporter and corresponding to the dish. The bracket includes a base, a first wing plate, a second wing plate and a plurality of fastening portions. The base faces the dish. The bracket is affixed to the dish through the fastening portions. The first wing plate is disposed on a first side of the base. The second wing plate is disposed on a second side of the base. The first side is opposite to the second side. The first wing plate, the second wing plate and the fastening portions are integrally formed with the base.

ANTENNA APPARATUS, RADIO BASE STATION, AND ANTENNA APPARATUS HOUSING BODY

A configuration is adopted in which an antenna apparatus of an underground embedded type to be disposed below a cover includes an antenna element and installation base where the antenna element is installed and which includes a height adjustment mechanism for adjusting a distance from the antenna element up to the cover. 1. An antenna apparatus of an underground embedded type to be disposed below a cover , the antenna apparatus comprising:an antenna element; andan installation base including a height adjustment mechanism that adjusts a distance from the antenna element to the cover, the installation base being a base where the antenna element is installed.2. The antenna apparatus according to claim 1 , wherein two of the antenna elements are installed to the installation base in such a manner that a distance between the two antenna elements is adjustable.3. The antenna apparatus according to claim 1 , wherein the antenna element extends from the installation base in a direction approaching the cover.4. A radio base station claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the antenna apparatus according to ; and'}radio equipment installed to the installation base and connected to the antenna element by a cable, the radio equipment being configured to perform radio processing for a signal transmitted from the antenna apparatus and for a signal received by the antenna apparatus.5. The radio base station according to claim 4 , wherein the installation base has a hook that retains the cable being connected from a backhaul to the radio equipment.6. An antenna apparatus housing body claim 4 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a container including an upper surface that opens and being capable of housing the antenna apparatus according to , the upper surface being a surface closest to a ground surface when the container is installed in a ground; and'}a cover being formed of FRP (Fiber-Reinforced Plastics) and covering an ...

WIRELESS NETWORK CONTROLLER AND METHOD OF CONTROLLING A WIRELESS NETWORK

An antenna apparatus for use in a wireless network and method of operating such an antenna apparatus are provided. A wireless network controller provides a configuration of such an antenna apparatus, a method of operating such a wireless network controller, and a resulting wireless network. The antenna apparatus comprises a directional antenna and a uniform circular antenna array. The directional antenna can be rotatably positioned about an axis with respect to a fixed mounting portion of the apparatus in dependence on wireless signals received by the antenna array. The antenna array allows the antenna apparatus to receive wireless signals isotropically and thus to accurately monitor the wireless signal environment in which it finds itself. The antenna apparatus can thus monitor and characterise incoming signals, both from external interference sources and from other network nodes, and the directional antenna can then be positioned in rotation to improve the network throughput. 1. Apparatus for controlling a wireless network comprising:an input to receive signal strength information and direction information from at least one antenna apparatus in the wireless network;configuration optimisation circuitry to perform an iterative wireless network optimisation procedure to determine at least one rotational position for the at least one antenna apparatus on the basis of the signal strength information and the direction information received, wherein the iterative wireless network optimisation procedure iterates in a direction of reduced interference for the at least one antenna apparatus; andinstruction transmission circuitry configured to send at least one rotational positioning instruction to at least one antenna apparatus in the wireless network to cause the at least one antenna apparatus to rotationally position its directional antenna in accordance with the at least one rotational positioning instruction.2. The apparatus as claimed in claim 1 , wherein the iterative ...

Method, System, and Software For Supporting Multiple Radar Mission Types

A radar system is provided that uses configurable radar control software. The radar system may continually adapt over time to perform different types of radar mission by re-configuring the radar control software with mission specific configuration data. A configuration database may be provided to store the configuration data for retrieval during mission transition operations. 1. A method for use in operating a radar system that is capable of performing a plurality of different types of radar missions , comprising:determining a mission type to be performed by the radar system;retrieving a configuration file from a configuration database that is associated with the identified mission type, the configuration database including configuration files associated with a plurality of different mission types; andusing configuration information from the retrieved configuration file to configure re-configurable radar control software associated with the radar system to perform a mission having the identified mission type.2. The method of claim 1 , wherein:using configuration information within the retrieved configuration file to configure re-configurable radar control software to perform a mission having the identified mission type includes using the configuration information to adapt one or more common radar functions in the radar control software for use with the identified mission type.3. The method of claim 1 , further comprising:repeating determining, retrieving, and using to adapt the radar control software as new missions are performed.4. The method of claim 1 , wherein:determining a mission type includes receiving a mission type indication from a radar operator.5. The method of claim 1 , wherein:determining a mission type includes determining a mission type by sensing the hardware configuration.6. A radar system that is capable of performing a plurality of different types of missions claim 1 , comprising:one or more digital processors to execute radar control software to ...

GUIDED ALIGNMENT OF WIRELESS DEVICE ORIENTATION

Embodiments provide for guided alignment of the orientation of two wireless devices. A first wireless device is at a known position and a known orientation. A signal from a second wireless device is received via a plurality of receive elements of the first wireless device. The first wireless device measures phase differences of the signal at the plurality of receive elements, and determines locations of each of the second wireless device's transmit elements based on the differences. Based on the transmit element locations, and a known antenna layout of the second wireless device, an orientation of the second wireless device is determined. Based on differences between the determined orientation and the known orientation of the first wireless device, instructions for aligning the devices are generated. Once the devices are aligned, location estimates of a third wireless device are made by both the first wireless device and the second wireless device. 1. A method of aligning orientations of two wireless devices , comprising:determining a first orientation and first position of a first wireless device;determining a second orientation and a second position of a second wireless device based on a first signal exchanged between the first and second wireless devices;generating instructions to reduce or eliminate a difference between the first orientation and the second orientation;causing performance of the instructions;in response to the causing, determining an updated orientation of the second wireless device based on a second signal exchanged between the first and second wireless devices;obtaining a first location estimate of a third wireless device, the first location estimate determined by the first wireless device at the first orientation;obtaining a second location estimate of the third wireless device, the second location estimate determined by the second wireless device at the updated orientation; andgenerating a third location estimate of the third wireless device ...

REFLECTIVE ARRAY SURFACE AND REFLECTIVE ARRAY ANTENNA

The present invention provides a reflective array surface. The reflective array surface includes a functional board that is configured to perform beam modulation on an incident electromagnetic wave and a reflection layer that is disposed on one side of the functional board and is configured to reflect an electromagnetic wave, where the functional board includes two or more functional board units and the reflection layer includes reflection units, where the number of reflection units corresponds to the number of functional board units, where the functional board unit and a reflection unit corresponding to the functional board constitute a phase-shifting unit that is used for phase shifting. According to the reflective array surface in the present invention, a functional board unit and a reflection unit corresponding to the functional board unit constitute a phase-shifting unit that is used for phase shifting, which can solve a problem in the prior art that a phase-shifting effect is not exquisite enough and a beam modulation capability for an electromagnetic wave is poor, thereby affecting bandwidth and working performance of a reflective array antenna. In addition, the present invention further provides a reflective array antenna. 1. A reflective array surface , wherein the reflective array surface comprises a functional board that is configured to perform beam modulation on an incident electromagnetic wave and a reflection layer that is disposed on one side of the functional board and is configured to reflect an electromagnetic wave , wherein the functional board comprises two or more functional board units and the reflection layer comprises reflection units , wherein the number of reflection units corresponds to the number of functional board units , wherein the functional board unit and a reflection unit corresponding to the functional board constitute a phase-shifting unit that is used for phase shifting; the functional board unit comprises a substrate unit and ...

SATELLITE COMMUNICATIONS TERMINAL FOR A SHIP AND ASSOCIATED METHODS

A satellite communications terminal for a ship may include an antenna with three antenna feeds operable at respective different frequencies, and communications circuitry coupled to the three antenna feeds and being configurable for a selected antenna feed. The terminal also includes a positioner to mount the antenna to the ship and point the antenna. A controller may select an antenna feed, configure the communications circuitry, and operate the positioner to point the antenna to a selected satellite all based upon the location of the ship and at least one selection rule. The selection rule may be a communications circuitry configuration rule and/or a service level agreement rule. 1. A satellite communications terminal for a ship and comprising:an antenna comprising three antenna feeds operable at respective different frequencies;communications circuitry coupled to said three antenna feeds and being configurable for a selected antenna feed;a positioner to mount said antenna to the ship and point said antenna; anda controller to select an antenna feed, configure said communications circuitry, and operate said positioner to point said antenna to a selected satellite all based upon the location of the ship and at least one selection rule.2. The satellite communications terminal according to wherein the at least one selection rule comprises at least one of a communications circuitry configuration rule and a service level agreement rule.3. The satellite communications terminal according to wherein the at least one selection rule is based upon at least one of communication speed claim 1 , communication latency claim 1 , and communication cost.4. The satellite communications terminal according to wherein said controller stores antenna pointing data for different satellite footprints and different ship locations claim 1 , and operates said positioner according to the antenna pointing data.5. The satellite communications terminal according to wherein said controller selects ...

ANTENNA ARRAY SYSTEM FOR MONITORING VITAL SIGNS OF PEOPLE

A patch antenna array system for monitoring vital signs of people in a closed environment, the patch antenna array system including three patches, the farfield pattern of which is shaped in the E-plane by series-feeding and in the H-plane by parallel-feeding to attain a heart-shaped pattern compensating free-space losses due to larger distances. 1. A radar antenna array system for monitoring vital signs of people in a closed environment , the system comprising at least one of:an array of three-by-one patches configured to shape the farfield pattern in the E-plane by series-feeding or parallel-feeding,an array of one-by-three patches configured to shape the farfield pattern in the H-plane by parallel-feeding or series-feeding, oran array of three-by-three patches configured to shape the farfield pattern in the E- and the H-plane by parallel-feeding and/or series-feeding,the configuration being such that the resulting antenna pattern comprises two or more maxima in order to enhance the radiation into certain areas of said closed environment such as edge areas or the corner areas of said closed environment.5. The system of claim 4 , wherein the spacing between the patches is λ/2=6.213 mm claim 4 , the length of the patches is around L=3.167 to 3.4 mm claim 4 , with different patch lengths claim 4 , variable spacings appearing between the patches claim 4 , wherein a space of 2.838 mm exists between patch 2 and patch 3 and of 2.971 mm between patch 1 and patch 2 which space is used for phase adjustment of the patches.6. The system of claim 5 , wherein the space between patch 2 and patch 3 is adjusted in order to reduce the interference of the feeding with the patch reflection. The present invention generally relates to a radar antenna array system adapted for monitoring vital signs of people in closed environments, e.g. people in their home or inside of vehicles or the like.Because of the rising amount of elderly people in retirement homes and the non-continuous ...

NETWORK ELEMENT ASSOCIATION USING NETWORK DATA

Methods for configuring a self-organizing network (SON) of a cellular telecommunication network are disclosed. A first set of data comprised of substantially real-time data for one or more key performance indicators (KPIs) is collected. A characteristic profile of the KPIs is determined. An instruction is sent to an identifier associated with the selected adjustable antenna, indicative of a command to change an electromagnetic characteristic of the selected adjustable antenna. A second set of data for the KPIs is received, and an updated profile of the KPIs is determined. A statistical probability of a causal relationship between the updated profile and the change to the electromagnetic is determined based on a predetermined threshold. Identifiers for the adjustable antennas are updated or confirmed. 1. A method of configuring a self-organizing network (SON) of a cellular telecommunication network , the cellular telecommunication network comprising a plurality of base stations and adjustable antennas , the method comprising:selecting an adjustable antenna of the cellular telecommunication network;receiving a first set of data comprised of substantially real-time data for one or more key performance indicators (KPIs);based at least on the first set of data, determining a characteristic profile of the one or more KPIs;sending an instruction addressed to an identifier associated with the selected adjustable antenna, the instruction indicative of a command to change an electromagnetic characteristic of the selected adjustable antenna;receiving a second set of data comprised of substantially real-time data for the one or more KPIs;based at least on the second set of data, determining an updated profile for the one or more KPIs;based on a comparison of the characteristic profile and the updated profile, determining that a statistical probability of a causal relationship between the updated profile and the change to the electromagnetic characteristic of the selected ...

Three-axis pedestal having motion platform and piggy back assemblies

A rotationally-stabilizing tracking antenna system includes a three-axis pedestal, a drive assembly rotating a vertical support assembly relative to a base assembly, a cross-level driver pivoting a cross-level frame assembly relative to the vertical support assembly, and an elevation driver pivoting an elevation frame assembly relative to the cross-level frame assembly, a motion platform assembly affixed to the elevation frame assembly, three orthogonally mounted angular rate sensors disposed on the motion platform assembly sensing motion about X, Y and Z axes, a three-axis gravity accelerometer mounted on the motion platform assembly to determine a true-gravity zero reference, and a control unit determining the actual position of elevation frame assembly based upon sensed motion about X, Y, and Z axes and the true-gravity zero reference, and controlling the azimuth, cross-level and elevation drivers to position the elevation frame assembly in a desired position.

ARRAY ANTENNA HAVING MECHANICALLY-ADJUSTABLE RADIATOR ELEMENTS

A tri-column antenna array architecture, containing a plurality of active radiating elements that are spatially arranged on a modified reflector structure is disclosed. Radiating elements disposed along (P and P) outlying center lines are movable and provided with compensating radio frequency feed line phase shifters so as to provide broad range of beam width angle variation of the antenna array's azimuth radiation pattern. 120.-. (canceled)21. An array antenna comprising:an adjustable array of radiator elements arranged linearly; anda common reflector for the linearly-arranged radiator elements,wherein a spacing between three or more of the radiator elements is mechanically adjustable to alter a radiation pattern of the array antenna.22. The array antenna of wherein the spacing between the three or more radiator elements is mechanically adjustable to have the same distance.23. The array antenna of wherein the spacing between the three or more radiator elements is mechanically adjustable to vary across the adjustable array to taper or distribute amplitude to form a spacing between at least some of the radiator elements with varying distance.24. The array antenna of further comprising control circuitry to configure a phase of signals applied to the radiator elements to form a tilt angle.25. The array antenna of claim 21 , wherein the adjustable array of radiator elements is one of a plurality of adjustable arrays of radiator elements claim 21 , the adjustable arrays being arranged to provide columns of the linearly-arranged radiator elements claim 21 ,wherein the common reflector is one of a plurality of common reflectors, each one of the adjustable arrays being associated with one of the common reflectors, andwherein the spacing between the three or more radiator elements of each adjustable array is mechanically adjustable.26. The array antenna of claim 21 , wherein the adjustable array of radiator elements is a first adjustable array claim 21 ,wherein the common ...

METHODS AND APPARATUS TO POINT A PAYLOAD AT A TARGET

Methods and apparatus to point a payload at a target are disclosed herein. An example machine accessible medium having instructions stored thereon that, when executed, causes a machine to at least command a first actuator to move to a first corrected stroke position and a second actuator to move to a second corrected stroke position to point a payload at a target along a line of sight vector without verifying a target pointing direction of a base when the first and second actuators are positioned to the respective first and second corrected stroke positions and without using a feedback to verify the base being at the target pointing direction when the first and second actuators are positioned to the respective first and second corrected stroke positions. 1. A machine accessible medium having instructions stored thereon that , when executed , cause a machine to at least:estimate a target pointing direction of a base supporting a payload to point the payload at a target, wherein the base is movable relative to a pivot joint about an azimuth angle and an elevation angle via a first linear actuator and a second linear actuator directly coupled to the base;determine a first corrected stroke position of the first linear actuator based on a base orientation error, and a second corrected stroke position of the second linear actuator based on the base orientation error; andcommand the first linear actuator to move to the first corrected stroke position and the second linear actuator to move to the second corrected stroke position to point the payload at the target without verifying a final position of the payload after the first linear actuator is actuated to the first corrected stroke position and the second linear actuator is actuated to the second corrected stroke position and without using a feedback to verify the base being at the target pointing direction when the first and second linear actuators are positioned to the respective first and second corrected stroke ...

MULTI-FEED DIVERSITY RECEIVE SYSTEM AND METHOD

Embodiments disclosed herein relate to diversity receive systems and methods. An antenna system may comprise a reflector and a plurality of feed antennas configured to receive a wireless signal from a common source with directional diversity. A receive system may comprise such antenna system in combination with a plurality of receivers and/or demodulators, and in combination with a combiner and/or controller. 1. An method of receiving wireless signals , comprising:receiving one or more wireless signals at a plurality of feed antennas of an antenna system;outputting a plurality of feed signals from the plurality of feed antennas to a receiver of the antenna system;demodulating the plurality of feed signals at the receiver in order to generate feed signal data;processing the feed signal data at a controller of the antenna system;outputting from the controller a control signal configured to cause the antenna system to rotate the plurality of feed antennas in order to increase a strength of the one or more wireless signals received by the antenna system.2. The method of receiving wireless signals of claim 1 , further comprising:reflecting the one or more wireless signals off a wireless signal reflector configured to reflect the wireless signal towards the plurality of feed antennas; androtating the wireless signal reflector in order to increase the strength of the one or more wireless signals received by the antenna system.3. The method of receiving wireless signals of claim 2 , wherein receiving the one or more wireless signals at a plurality of feed antennas further comprises receiving at least one of the one or more wireless signals at a waveguide.4. The method of receiving wireless signals of claim 2 , further comprising: receiving at least one of the one or more wireless signals at an omni antenna or a sector antenna of the antenna system.5. The method of receiving wireless signals of claim 2 , further comprising: determining claim 2 , by the controller claim 2 , a ...

MULTI-FREQUENCY ANTENNA TRANSMISSION

The multi-frequency antenna transmission, including a drive gear, a gear train with parallel gear shafts, screw assemblies and a shifter. The transmission gears are connected to the stoppers of the screw assemblies one by one, the drive gear drives the various transmission gears to rotate, and all the stoppers rotate. The shifter pushes the stopper of one of the screw assemblies, such that the first elastic member disposed between the connection member and the stopper is compressed, and the connection member is connected to corresponding lead screw, thus the power of the stopper is transmitted to corresponding lead screw through the compressed first elastic member and the connection member, and drives the lead screw to rotate. 1. A multi-frequency antenna transmission , comprising:drive gears;drive gears;a gear train with parallel gear shafts, comprising several transmission gears driven to rotate by the drive gear;screw assemblies each arranged corresponding to a respective transmission gear, wherein each of the screw assemblies comprises a lead screw, a connection member selectively connected to or separated from the lead screw, a stopper connected with the corresponding transmission gear, and a first elastic member disposed between the connection member and the stopper; anda shifter, configured to push one of the stoppers, such that the corresponding first elastic member is compressed and disposed between said stopper and the corresponding connection member, and the connection member is connected to the corresponding lead screw.2. The multi-frequency antenna transmission according to claim 1 , wherein each of the screw assemblies further includes a second elastic member connected to one side of the connection member facing away from the first elastic member claim 1 , and the second elastic member is away from the end of the connection member and faces toward the end of the lead screw claim 1 , and the second elastic member is compressed and disposed between the ...

TEST APPARATUS AND A METHOD OF TESTING OF AN ANTENNA

The present invention teaches a measurement apparatus for the measurement of a test antenna comprising: a movable stand for supporting the test antenna, a feed antenna having a plurality of radiating elements. The movable stand is located at a predefined distance from the feed antenna. An antenna feed system is provided with a plurality of adjustment components for adjusting the phase and amplitude of a wave front from the plurality of radiating elements such that at the distance the wave front is substantially planar. 1. A measurement apparatus for the measurement of a test antenna comprising:a movable stand for supporting the test antenna,a feed antenna having a plurality of radiating elements, wherein the movable stand is located at a predefined distance (d) from the feed antenna; andan antenna feed system having a plurality of adjustment components for adjusting the phase and amplitude of a wave front from the plurality of radiating elements, such that at the distance (d) the wave front is substantially planar.2. The measurement apparatus of claim 1 , wherein the movable stand is rotatable around at least one axis.3. The measurement apparatus of claim 2 , wherein the at least one axis is one of a vertical axis or a horizontal axis.4. The measurement apparatus of claim 1 , wherein the antenna feed system has at least one of a plurality of phase element or delay elements connected to the radiating elements claim 1 , for adjusting the phase of the wave front from the plurality of radiating elements.5. The measurement apparatus of claim 4 , wherein a delay distribution set by the plurality of phase element or delay elements is adjusted such that there is substantially no delay at least in a center portion of the feed antenna.6. The measurement apparatus of claim 1 , wherein the antenna feed system has a plurality of attenuators or gain elements connected to the radiating elements claim 1 , for adjusting the amplitude of the wave front from the plurality of radiating ...

Radio frequency energy harvesting system

Disclosed is a Radio Frequency (“RF”) Energy Harvesting System (“RFHS”). The RFHS includes a phased array antenna, a power harvesting unit, and a controller. The phased array antenna is configured to receive ambient RF energy and, in response, produce an input power signal. The power harvesting unit is in signal communication with the phased array antenna and includes a rectifier module, storage module, and power threshold module. The power harvesting unit is configured to receive the input power signal and, in response, produce a rectified power signal. The controller is in signal communication with the phased array antenna and may steer the antenna beam of the phased array antenna.

ANTENNA ORIENTATION ADJUSTMENT ASSISTANCE DEVICE AND ANTENNA DEVICE INSTALLATION METHOD

An antenna orientation adjustment assistance device that allows any worker to quickly and accurately install an antenna device is provided. An antenna device () is temporarily installed. Further, a camera () is mounted on the antenna device (). Then, the antenna orientation adjustment assistance device includes a reception strength detection unit () that detects a reception strength of radio waves received by an antenna unit (), a position calculation unit () that calculates a relative angle position of the antenna unit () by using an image taken by a camera () fixed relative to the antenna unit (), and a reception strength recording unit () that records the relative angle position of the antenna unit () and the reception strength at the relative angle position in association with each other. 1. An antenna orientation adjustment assistance device comprising:a reception strength detector detecting a reception strength of radio waves received by an antenna unit;a position calculator calculating a relative angle position of the antenna unit by using an image taken by a camera fixed relative to the antenna unit; anda reception strength recorder recording the relative angle position of the antenna unit and the reception strength at the relative angle position in association with each other.2. The antenna orientation adjustment assistance device according to claim 1 , further comprising:an initial image recorder recording an image taken by the camera when the antenna unit is at an initial position as an initial image; andan image capturer capturing an image taken by the camera when the antenna unit is at a current position displaced from the initial position as a current image, whereinthe position calculator calculates a gap between the current image and the initial image based on comparison between the current image and the initial image.3. The antenna orientation adjustment assistance device according to claim 1 , further comprising:a peak searcher searching for a ...

METHODS AND SYSTEMS FOR MITIGATING INTERFERENCE WITH A NEARBY SATELLITE

In one embodiment, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when an amount of interference with an adjacent satellite reaches a threshold due to the wide beamwidth axis of the asymmetric antenna beam pattern. 1. An antenna system for mounting on an aircraft for communication with a target satellite , the antenna system comprising: the first array of antenna elements has a first main beam with a horizontal half-power beamwidth along a horizontal axis of the first array and a vertical half-power beamwidth along a vertical axis of the first array, the vertical half-power beamwidth greater than the horizontal half-power beamwidth;', 'the positioner is rotatably coupled with the first array about at least a first axis and a second axis to point the first main beam at the target satellite;', 'the first main beam has a first composite half-power beamwidth that is less than or equal to a particular value over a first range of skew angles; and', 'the first main beam has a second composite half-power beamwidth that is greater than the particular value over a second range of skew angles;, 'a primary antenna comprising a first array of antenna elements and a positioner, whereina secondary antenna oriented relative to the primary antenna, the secondary antenna comprising a second array of antenna elements having a second main beam and a ...

PROVIDING COMMUNICATIONS COVERAGE USING HYBRID ANALOG/DIGITAL BEAMFORMING

An apparatus includes feeds to form analog beams. The feeds are divided into panels. The apparatus includes processing circuitry that divides a target area for communications coverage into regions, including a first region and a second region neighboring each other. The processing circuitry generates, for the first region, a first plurality of analog beams, forming a first cluster. The processing circuitry generates, in the first cluster from the first plurality of analog beams, a first plurality of hybrid beams arranged in a first arrangement in the first cluster. The processing circuitry generates, for the second region, a second plurality of analog beams, forming a second cluster. The processing circuitry generates, in the second cluster from the second plurality of analog beams, a second plurality of hybrid beams arranged in a second arrangement that is adjacent to the first plurality of hybrid beams in the first arrangement. 1. (canceled)2. An apparatus comprising:a plurality of feeds in a spacecraft configured to form analog beams, wherein the plurality of feeds is divided into a plurality of panels, each panel including one or more feeds from the plurality of feeds; and determining a target area for communications coverage;', 'dividing the target area into a plurality of regions including a first region and a second region;', 'determining, at a first time, that the first region corresponds to an edge of coverage (EOC) of the spacecraft, and that the second region corresponds to nadir of the spacecraft, wherein the spacecraft is at a first position at the first time;', selecting, at the first time, a first number of panels of the plurality of panels for the first region and a second number of panels of the plurality of panels for the second region, wherein the first number of panels is greater than the second number of panels,', 'generating, at the first time, for the first region, a first plurality of analog beams, wherein the first number of panels generates ...

On-board meteorological radar having a rotating antenna

A meteorological radar installed on board an aircraft, including a mechanical support fixed to a bulkhead of a nose of the aircraft, wherein an antenna is mounted on the mechanical support to enable turning mobility around an axis of rotation. The antenna includes a pedestal, on which at least one blade, extending radially along the axis of rotation, is installed. A free side of the blade, along which a plurality of radiating elements is distributed, perceptibly has the shape of a portion of conic in a plane including the axis of rotation. Because the blade is mobile only in rotation along the axis of rotation, and the selection of the emission/reception direction is performed electronically, not mechanically, the space and length requirements of the meteorological radar are fixed, whether the meteorological radar is in operation or not, and are determined based on the eccentricity and parameter of the conic.

COMPACT ANTENNA APPARATUS FOR MOBILE COMMUNICATION SYSTEM

A compact antenna apparatus for a mobile communication system includes: a radome having at least one frequency band radiating element provided therein; at least one phase shifter portion which is provided in an inner side of the radome and which is connected to the radiating element to adjust a tilting angle of the radiating element; and a rotary knob portion which is provided so as to be exposed to the outside of the radome and which is directly coupled to the phase shifter portion to drive a phase shifter.

Antenna, antenna assembly, and base station

Embodiments of the present disclosure provide an antenna, including a first antenna portion and a detachable second antenna portion that is connected to the first antenna portion, where the first antenna portion includes a first radome and a first reflection plate disposed in the first radome, the second antenna portion includes a second radome and a second reflection plate disposed in the second radome, and a working surface of the first reflection plate and a working surface of the second reflection plate are coplanar; and a plurality of antenna arrays on the working surface of the first reflection plate and a plurality of antenna arrays on the working surface of the second reflection plate are configured to construct different types of antennas based on a quantity of frequency bands and a quantity of transmit and receive channels that are configured for the antenna.

METHODS AND SYSTEMS FOR MITIGATING INTERFERENCE WITH A NEARBY SATELLITE

In one example, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when a performance characteristic for communication with the target satellite satisfies a threshold due to a position of the aircraft relative to the target satellite. 1. An antenna system for mounting on an aircraft , the antenna system comprising:a primary antenna on the aircraft, wherein the primary antenna has a first acceptable service area for communication of a signal between the aircraft and a target satellite while satisfying a performance characteristic for communicating with the target satellite;a secondary antenna on the aircraft, wherein the secondary antenna has a second acceptable service area for communication of the signal between the aircraft and the target satellite while satisfying the performance characteristic for communicating with the target satellite, and wherein the second acceptable service area overlaps with a portion of the first acceptable service area; and selects the primary antenna for communication of the signal at a first position of the aircraft within the portion of the first acceptable service area that overlaps with the second acceptable service area, wherein both the primary antenna and the secondary antenna satisfy the performance characteristic for communicating with the target satellite at the first position of the aircraft; and ...

METHODS AND SYSTEMS FOR MITIGATING INTERFERENCE WITH A NEARBY SATELLITE

In one embodiment, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when an amount of interference with an adjacent satellite reaches a threshold due to the wide beamwidth axis of the asymmetric antenna beam pattern. 1. (canceled)2. An antenna system for mounting on an aircraft , the antenna system comprising:one or more first antenna elements configured to form a first beam between the antenna system and one or more satellites;one or more second antenna elements configured to form a second beam between the antenna system and the one or more satellites; and select the one or more first antenna elements to perform communications between the antenna system and the one or more satellites via the first beam;', 'switch a first portion of the communications from the first beam formed by the one or more first antenna elements to the second beam formed by the one or more second antenna elements when a performance characteristic associated with the first beam satisfies a threshold; and', 'maintain a second portion of the communications via the first beam upon switching the first portion of the communications to the second beam., 'an antenna selection system configured to3. The antenna system of claim 2 , wherein the antenna selection system is further configured to:switch the first portion of the communications from the first beam to the ...

Base station and antenna installation including internet protocol addressable antenna line devices and methods of operating the same

A system includes a base station, an antenna coupled to the base station, and an antenna line device coupled to the antenna. The antenna line device is Internet Protocol (IP) addressable and is configured to receive a control signal from a controller.

WIRELESS COMMUNICATION SYSTEM AND COMMUNICATION METHOD FOR CABLELESS DETECTION ROBOT FOR GAS PIPELINE

The present disclosure relates to a wireless communication system and communication method for a cableless detection robot for a gas pipeline. The wireless communication system includes an antenna assembly, a repeater assembly and a repeater retracting device, wherein the antenna assembly is fixed to the gas pipeline and extends into the interior of the gas pipeline, the repeater assembly is provided with at least one set, and the repeater retracting device is connected to the robot and used for retracting the repeater assembly along the gas pipeline, the antenna assembly, the repeater assembly and the robot are connected through a wireless signal having a wavelength less than 3.41r, wherein r represents the radius of the gas pipeline. The wireless communication system has the advantages of simple structure, low cost, convenient use, safety and reliability, and solves the problem that the automatic force cableless detection robot cannot perform a long-distance internal detection operation due to shielding wireless signals by the pipeline. The communication method has the advantages of easy implementation, convenient control and reliable communication.

GEOLOCATION SYSTEM, AND AN ASSOCIATED AIRCRAFT AND GEOLOCATION METHOD

An aircraft, to a system, and to a method of geolocation for calculating the current coordinates at least in longitude and in latitude of a current position of an aircraft. Such an invention makes it possible to calculate the current coordinates in latitude and in longitude corresponding to the current position of the aircraft on the basis firstly of first and second coordinates in latitude and in longitude of two ground stations and secondly of first and second transmission directions of the radio signals. 1. A geolocation system for calculating the current coordinates at least in longitude and in latitude of the current position of an aircraft , the geolocation system comprising:at least two mutually distinct ground stations suitable for transmitting radio signals at predetermined frequencies, such ground stations comprising a first ground station transmitting the radio signals at at least one first predetermined frequency and a second ground station transmitting the radio signals at at least one second predetermined frequency;at least two reception antennas comprising a first reception antenna and a second reception antenna both suitable for receiving the radio signals;an analysis unit for analyzing the radio signals, the analysis unit being connected to the reception antennas and serving to determine at least two transmission directions of the radio signals, such transmission directions comprising firstly a first transmission direction corresponding to a first straight line passing through the current position of the aircraft and also through the first ground station, and a second transmission direction corresponding to a second straight line passing through the current position of the aircraft and also through the second ground station;a memory for containing all or part of a database including at least position data associating the first and second predetermined frequencies of the radio signals respectively with first coordinates in latitude and in longitude ...

ACTIVE BASE-TRACKING MULTI-ANTENNA SYSTEM AND ACTIVE BASE-TRACKING ANTENNA SYSTEM FOR VESSEL AND OFFSHORE STRUCTURE

An active base-tracking multi-antenna system and an active base-tracking antenna system for a vessel and an offshore structure are provided. The active base-tracking multi-antenna system may include: a fixing shaft fixed to a fixture on a vessel or an offshore structure; a gimbal unit disposed on a top of the fixing shaft and keep positions of a panning motor and antennas; the panning motor disposed on the gimbal unit and simultaneously rotating the antennas in a left-right direction; and the antennas connected to the panning motor. Therefore, it is possible to always keep the antennas in a stable horizontal position and greatly improve communication quality by adjusting the azimuths and vertical angles of the antennas in real time to an optimal state for communication with a base station. 1. An active base-tracking multi-antenna system for a vessel and an offshore structure , the system comprising:a fixing shaft fixed to a fixture on a vessel or an offshore structure;a gimbal unit disposed on a top of the fixing shaft and maintaining positions of a panning motor and a plurality of antennas;the panning motor disposed on the gimbal unit and simultaneously rotating the antennas in a left-right direction; andthe antennas connected to the panning motor.2. The system of claim 1 , further comprising a rotary plate fixed to a rotary shaft of the panning motor and supporting the antennas.3. The system of claim 1 , wherein the gimbal unit keeps the antennas in a stable position in a way of a universal joint using gravity without a specific controlling or actuating unit.4. The system of claim 3 , wherein the gimbal unit includes:a fixing bracket fixed to the top of the fixing shaft;a Y-axial rotation support bracket coupled to an X-axial hinge pin on the fixing bracket to freely rotate in a Y-axial direction; andan X-axial rotation support bracket coupled to a Y-axial hinge pin on the Y-axial rotation support bracket to freely rotate in an X-axial direction.5. The system of ...

COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS

The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns. 1. A method for communications via a communications satellite having an antenna assembly with a plurality of antenna feed elements , the method comprising:providing a communications service via a first plurality of beamformed spot beams, the first plurality of beamformed spot beams based at least in part on a first beamforming configuration and a first native antenna pattern of the antenna assembly, the first native antenna pattern corresponding to a first defocused position of a feed array assembly of the antenna assembly relative to a reflector of the antenna assembly, and the first native antenna pattern comprising a composite of first native feed element patterns of the plurality of antenna feed elements;commanding the communications satellite to change from the first native antenna pattern of the antenna assembly to a second native antenna pattern of the antenna assembly, the second native antenna pattern corresponding to a second defocused position of the feed array assembly relative to the reflector, and the second native antenna pattern comprising a ...