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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1447. Отображено 100.
22-03-2012 дата публикации

Antenna with tapered array

Номер: US20120068909A1
Автор: Amin Rida, Emmanouil M. Tentzeris, Jae Seung Lee, Paul D. Schmalenberg, RongLin Li
Принадлежит: GEORGIA INSTITUTE OF TECHNOLOGY, Toyota Motor Engineering and Manufacturing North America Inc

An antenna with improved radiation efficiency is provided. The antenna includes an antenna array proximately coupled to a feed line. The antenna array includes a plurality of resonating lines. Each resonating line includes a plurality of axially aligned resonators. The resonators have a resonating surface. The resonating surfaces of the resonators at the ends of the resonating lines are larger than resonating surfaces of the resonators in the middle of the resonating lines. Power is supplied to each resonating ling through a feed line. Electrical field is uniformly distributed along the antenna array so as to improve the radiation efficiency of the antenna.

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Номер записи: 1
12-04-2012 дата публикации

Substrate lens antenna device

Номер: US20120088459A1
Автор: Andrea Neto, Giampiero Gerini
Принадлежит: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO

A device with a substrate lens antenna uses a lens shaped dielectric body located on top of a planar feed antenna. A leaky wave antenna structure is used as feed antenna. The leaky wave antenna structure has a feed input and a first and second wave propagation branch extending from the feed input. The lens shaped dielectric body has a plane surface containing a focal point of the lens shaped dielectric body, the plane surface located adjacent the first plane, with the focal point adjacent the position of the feed input. Preferably the lens shaped dielectric body is spaced from the leaky wave structure at a sufficient distance to remove most of the propagation speed reduction effect of the dielectric on wave propagation along the leaky wave antenna. This helps to suppress undesirable side-lobes.

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Номер записи: 2
27-12-2012 дата публикации

Lower Power Localized Distributed Radio Frequency Transmitter

Номер: US20120326729A1
Автор: Brian Groh, David Blake Jackson, Frederick R. Faxvog, Gale Nordling, Greg Fuchs, James Nicholas Ruehl, Wallace Jensen
Принадлежит: Individual

Methods and systems are disclosed for wireless communication, and in particular using a coaxial antenna for distributed wireless transmission. In one example, a wireless transmitter is disclosed that includes a radio frequency signal source and a coaxial cable including a near end and a far end. The near end is electrically connected to the radio frequency signal source and configured to receive signals from the radio frequency signal source. The coaxial cable has an inner conductor and an outer conductor. The wireless transmitter includes a shorting connection at the far end of the coaxial cable, the shorting connection electrically connecting the inner conductor and the outer conductor, and a plurality of openings along the coaxial cable spaced at predetermined locations to output signals generated by the radio frequency signal source. The invention can be used for RF attenuation monitoring and/or testing applications.

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Номер записи: 3
31-01-2013 дата публикации

Wireless communication system

Номер: US20130029612A1
Автор: Chikashi Gotou, Hiroki Mochizuki, Hirotaka Ichiba, Kanya Hiroi, Kaoru Matsuhisa, Katsumi Gocho, Kazuhiro Odoko, Koji Terahara, Mamoru Nomura, Nobuo Murofushi, Shigeru Sato, Tomonori Sugiyama, Wataru Sakurai
Принадлежит: Toshiba TEC Corp

According to one embodiment, a wireless communication system comprises a leaky coaxial cable configured to send and receive electric wave to and from a wireless communication terminal and a retainer member configured to vertically arrange the leaky coaxial cable on a given setting surface.

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Номер записи: 4
18-04-2013 дата публикации

MULTI-CHANNEL CABLING FOR RF SIGNAL DISTRIBUTION

Номер: US20130093638A1
Автор: Shoemaker Curtis L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A multi-channel RF signal cable comprises a metallic material 101joining a plurality of radio frequency (RF) signal channels in a generally planar structure, wherein at least a first channel is configured to radiatively send and/or receive a first RF signal from the first channel. The multi-channel RF signal cable can have multiple outbound channels, a dedicated receive channel, and in-field programmable radiators, to provide for flexible network design and optimization in a given indoor radiative environment, for example, in-building wireless applications. 1. A multi-channel RF signal cable , comprising:a metallic material joining a plurality of radio frequency (RF) signal channels in a generally planar structure, wherein at least a first channel is configured to radiatively send and/or receive a first RF signal from the first channel.2. The multi-channel RF signal cable of claim 1 , wherein each of the RF signal channels comprises a coaxial cable construction.3. The multi-channel RF signal cable of claim 1 , wherein at least one of the RF signal channels comprises one or more optical fibers.4. The multi-channel RF signal cable of claim 1 , wherein a second channel is configured to radiatively send and/or receive a second RF signal from the second channel.5. The multi-channel RF signal cable of claim 4 , wherein a third claim 4 , non-radiating channel is disposed between the first channel and the second channel.6. The multi-channel RF signal cable of claim 1 , wherein the first channel comprises a plurality of radiating apertures formed longitudinally along the axial length of the first channel.7. The multi-channel RF signal cable of claim 6 , wherein the plurality of radiating apertures are formed along the axial length of the first channel in a random pattern.8. The multi-channel RF signal cable of claim 6 , wherein a portion of the radiating apertures are covered by a metallic tape.9. The multi-channel RF signal cable of claim 1 , wherein a second channel is a ...

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Номер записи: 5
12-09-2013 дата публикации

Smart Antenna Utilizing Leaky Wave Antennas

Номер: US20130237163A1
Автор: Rofougaran Ahmadreza, Rofougaran Maryam
Принадлежит: BROADCOM CORPORATION

Methods and systems for a smart antenna utilizing leaky wave antennas (LWAs) are disclosed and may include a programmable polarization antenna including one or more pairs of LWAs configured along different axes. One or more pairs of leaky wave antennas may be configured to adjust polarization and/or polarity of one or more RF signals communicated by the programmable polarization antenna. RF signals may be communicated via the configured programmable polarization antenna utilizing the configured one or more pairs of the leaky wave antennas. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The polarization and/or polarity may be configured utilizing switched phase modules. The LWAs may include microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The LWAs may be integrated in one or more integrated circuits, packages, and/or printed circuit boards. 120-. (canceled)21. A wireless device comprising:a programmable polarization antenna, wherein said programmable polarization antenna comprises a pair of leaky wave antennas, said wireless device being operable to:configure said pair of leaky wave antennas to adjust a polarity of RF signals communicated by said programmable polarization antenna;configure an impedance of said pair of leaky wave antennas;communicate said RF signals via said programmable polarization antenna utilizing said pair of leaky wave antennas.22. The wireless device of claim 21 , wherein said wireless device is operable to configure said impedance of said pair of leaky wave antennas by adjusting a position of a feed point within said pair of leaky wave antennas.23. The wireless device of claim 21 , wherein said wireless device is configured to utilize a wireless standard selected from the group of standards consisting of GSM claim 21 , CDMA claim 21 , CDMA2000 claim 21 , WCDMA claim 21 , GMS claim 21 , GPRS ...

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Номер записи: 6
03-10-2013 дата публикации

System and Method for Receiving I and Q RF Signals without a Phase Shifter

Номер: US20130259143A1
Автор: Ahmadreza Rofougaran, Maryam Rofougaran
Принадлежит: Broadcom Corp

Methods and systems for receiving in-phase and quadrature (I and Q) radio frequency (RF) signals without a phase shifter utilizing a leaky wave antenna are disclosed and may include generating in-phase and quadrature signals using a leaky wave antenna coupled to one or more low-noise amplifiers (LNAs) on a chip and without a phase shifter. The RE I and Q signals may be communicated from the single leaky wave antenna using coplanar feed points and/or feed points on a top surface and a bottom surface of the single leaky wave antenna. The leaky wave antennas may be integrated on the chip, on a package to which the chip is affixed, and/or on a printed circuit board to which the chip is affixed. The RF I and Q signals may be amplified by the one or more LNAs and may down-convert the RF I and Q signals to baseband signals.

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Номер записи: 7
12-12-2013 дата публикации

RF Power Conversion to DC Power with a Leaky Wave Antenna

Номер: US20130328739A1
Автор: Rofougaran Ahmadreza, Rofougaran Maryam
Принадлежит: BROADCOM CORPORATION

Methods and systems for converting RF power to DC power utilizing a leaky wave antenna (LWA) are disclosed and may include receiving RF wireless signals utilizing one or more LWAs in a wireless device, and generating one or more DC voltages from the received RF signals utilizing cascaded rectifier cells. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The LWAs may be configured to receive the RF signals from a desired direction. The LWAs may comprise microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on a spacing between conductive lines in the waveguides. The LWAs may be integrated in one or more integrated circuits, integrated circuit packages, and/or printed circuit boards. The packages may be affixed to one or more printed circuit boards and the integrated circuits may be flip-chip-bonded to the packages. 120-. (canceled)21. A wireless device comprising:one or more leaky wave antennas, wherein said wireless device is operable to:receive RF signals utilizing said one or more leaky wave antennas, andgenerate one or more DC voltages from said RF signals.22. The wireless device of claim 21 , wherein said wireless device is operable to configure a resonant frequency of said one or more leaky wave antennas utilizing micro-electro-mechanical systems (MEMS).23. The wireless device of claim 21 , wherein said wireless device is operable to configure said one or more leaky wave antennas to receive said RF signals from a desired direction.24. The wireless device of claim 21 , wherein said one or more leaky wave antennas comprise microstrip waveguides.25. The wireless device of claim 24 , wherein a cavity height of said one or more leaky wave antennas is dependent on a spacing between conductive lines in said microstrip waveguides.26. The wireless device of claim 21 , wherein said one or more leaky wave antennas comprise coplanar waveguides.27. The wireless device of claim 26 , ...

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Номер записи: 8
06-03-2014 дата публикации

WIRELESS COMMUNICATION APPARATUS

Номер: US20140065977A1
Автор: Kumagawa Takayuki
Принадлежит: TOSHIBA TEC KABUSHIKI KAISHA

A wireless communication apparatus detects strength of electric wave which is transmitted from a wireless communication terminal and received through a leaky coaxial cable and executes the data transmission to the wireless communication terminal by transmitting the electric wave from the leaky coaxial cable if the detected strength of the electric wave is equal to or greater than a set value. 1. A wireless communication apparatus , comprising:a leaky coaxial cable configured to carry out transmission and reception of electric wave;a detection module configured to detect the strength of electric wave that is transmitted from a wireless communication terminal and received through the leaky coaxial cable; anda control module configured to execute data transmission to the wireless communication terminal by transmitting the electric wave through the leaky coaxial cable if the strength of the electric wave detected by the detection module is equal to or greater than a set value.2. The wireless communication apparatus according to claim 1 , wherein:the control module executes data transmission to the wireless communication terminal by transmitting the electric wave through the leaky coaxial cable if the detected strength of the electric wave is equal to or greater than the set value which is variably set by the control module according to an input data from an external device and, does not execute data transmission if the detected strength is less than the set value.3. The wireless communication apparatus according to claim 1 , wherein:the detection module detects the strength of the electric wave which is transmitted from the wireless communication terminal in response to the transmission of electric wave from the leaky coaxial cable within the electric wave received through the leaky coaxial cable.4. The wireless communication apparatus according to claim 1 , wherein:the detection module periodically transmits the electric wave including a beacon from the leaky coaxial ...

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Номер записи: 9
20-03-2014 дата публикации

Radar array antenna using open stubs

Номер: US20140078005A1
Автор: Hak-Kyoun Kim, Han-Soo Park, Yaroslav Milyakh
Принадлежит: Ace Technology Co Ltd

A radar array antenna using open stubs is disclosed. The disclosed antenna includes: a dielectric substrate; a feed line for feeding RF signals that is formed on an upper portion of the dielectric substrate and has a linear form; a multiple number of open stubs that extend at particular angles from the feed line and have linear forms with particular widths; a matching element for adjusting impedance matching that is joined to an end of the feed line; and a ground formed on a lower portion of the dielectric substrate, where the open stubs operate as radiators, and at least one of the open stubs has a different length for adjusting a radiation signal intensity of each open stub. The disclosed antenna can be manufactured with a simple structure and a compact size.

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Номер записи: 10
20-03-2014 дата публикации

3D PACKAGE DEVICE OF PHOTONIC INTEGRATED CHIP MATCHING CIRCUIT

Номер: US20140078011A1
Автор: LIU Jianguo, Liu Yu, Wang Jiasheng, Zhu Ninghua
Принадлежит: Institute of Semiconductors, Chinese Academy of Sciences

A 3D package device of a photonic integrated chip matching circuit, comprising: a first carrier substrate; a first microwave transmission line array formed by evaporation on the top surface of the first carrier substrate to provide bias voltages and high-frequency modulation signals to the photonic integrated chip; a second carrier substrate formed perpendicularly to the first carrier substrate or to have a certain angle with respect to the first carrier substrate, so as to constitute a 3D structure; a second microwave transmission line array formed by evaporation on the bottom surface of the second carrier substrate to match electrodes of the first microwave transmission line array, the second microwave transmission line array being soldered or sintered with the electrodes of the first microwave transmission line array; an electrode array formed by evaporation on a side surface or two opposite side surfaces of the second carrier substrate; and a microwave circuit. 1. A 3D package device of a photonic integrated chip matching circuit , characterized in that it comprises:a first carrier substrate;a first microwave transmission line array formed by evaporation on the top surface of the first carrier substrate to provide bias voltages and high-frequency modulation signals to the photonic integrated chip;a second carrier substrate formed to be perpendicular to the first carrier substrate or to have a certain angle with respect to the first carrier substrate, so as to constitute a 3D structure;a second microwave transmission line array formed by evaporation on the bottom surface of the second carrier substrate to match electrodes of the first microwave transmission line array, the second microwave transmission line array being soldered or sintered with the electrodes of the first microwave transmission line array;an electrode array formed by evaporation on a side surface or two opposite side surfaces of the second carrier substrate; anda microwave circuit.2. The 3D ...

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Номер записи: 11
27-01-2022 дата публикации

Antenna device and radar apparatus

Номер: US20220026524A1
Автор: Mitsuru Kirita, Shigeo Udagawa, Takashi Maruyama
Принадлежит: Mitsubishi Electric Corp

An antenna device includes a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, and a receiving antenna including reception channels. An interval between the transmitting antenna and the transmitting antenna is wider than an overall width of the receiving antenna. An interval between the transmitting antenna and the transmitting antenna is narrower than an interval between adjacent channels among the reception channels.

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Номер записи: 12
03-02-2022 дата публикации

OBJECT POSITION AND/OR SPEED AND/OR SIZE DETECTION DEVICE FOR A WIND TURBINE

Номер: US20220034304A1
Автор: Nagel Eirik, Nieuwenhuizen John
Принадлежит:

A wind turbine has an object position and/or speed detection device including: at least one leaky feeder, at least one electromagnetic transmitter connected to the least one leaky feeder for transmitting a first electromagnetic signal along the at least one leaky feeder towards a target object, whose position is to be detected, at least one electromagnetic receiver connected to the least one leaky feeder for receiving from the at least one leaky feeder a second electromagnetic signal, the second electromagnetic signal reflected from the target object when the first electromagnetic signal hits the target object, a processing unit connected to the electromagnetic transmitter and the electromagnetic receiver and configured to analyze the first electromagnetic signal and the second electromagnetic signal for determining the position and/or speed and/or direction and/or the size of the target object. 1. A wind turbine including a tower , a nacelle and at least one rotatable blade and an object position and/or speed and/or size detection device comprising:at least one leaky feeder;at least one electromagnetic transmitter connected to the least one leaky feeder for transmitting a first electromagnetic signal along the least one leaky feeder towards a target object, whose position is to be detected;at least one electromagnetic receiver connected to the least one leaky feeder for receiving from the at least one leaky feeder a second electromagnetic signal, the second electromagnetic signal being reflected from the target object when the first electromagnetic signal hits the target object; anda processing unit connected to the electromagnetic transmitter and the electromagnetic receiver and configured to analyze the first electromagnetic signal and the second electromagnetic signal for determining the position and/or speed and/or direction and/or the size of the target object.2. The wind turbine according to claim 1 , comprising at least two leaky feeders respectively ...

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Номер записи: 13
19-01-2017 дата публикации

ANTENNA FOR DOWNHOLE COMMUNICATION USING SURFACE WAVES

Номер: US20170016317A1
Автор: Roberson Mark W.
Принадлежит:

An assembly can include a casing string with an outer surface. The assembly can also include an antenna for wirelessly communicating data by generating a surface wave that propagates along an interface surface. The antenna can be positioned coaxially around the casing string. The antenna can include a cylindrically shaped conductor that is positionable coaxially around an outer surface of a casing string for generating a magnetic field component of the surface wave that is non-transverse to a direction of propagation of the surface wave along the interface surface. The antenna can also include a pair of conductive plates positioned at an angle to the cylindrically shaped conductor for generating an electric field component of the surface wave. 1. An assembly comprising:a casing string with an outer surface; and a cylindrically shaped conductor that is positionable coaxially around the outer surface of the casing string for generating a magnetic field component of the surface wave that is non-transverse to a direction of propagation of the surface wave along the interface surface; and', 'a pair of conductive plates positioned at an angle to the cylindrically shaped conductor for generating an electric field component of the surface wave., 'an antenna for wirelessly communicating data by generating a surface wave that propagates along an interface surface, the antenna positioned coaxially around the casing string and comprising2. The assembly of claim 1 , wherein the antenna is operable to generate the electric field component such that the electric field component is non-transverse to the direction of propagation of the surface wave along the interface surface.3. The assembly of claim 2 , wherein the interface surface is between the casing string and a cement sheath.4. The assembly of claim 1 , wherein the angle is 0 degrees or 90 degrees.5. The assembly of claim 1 , wherein the antenna is operable to generate the surface wave responsive to receiving a signal with a ...

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Номер записи: 14
17-01-2019 дата публикации

NARROWBAND LEAKY WAVE ANTENNA FOR SENSING OBJECTS IN RELATION TO A VEHICLE

Номер: US20190020116A1
Автор: DIEWALD Andreas, HAMMES Christian
Принадлежит:

A periodic type leaky wave antenna, formed, e.g. on a printed circuit board, using cells of a filled circular structure. The leaky wave antenna may be formed in a series fed patch configuration. In order to achieve a high quality factor with respect to high frequency sensitive beam, a circular patch structure may be used, giving the best area to perimeter ratio. The cavity model based design considerations yield a proportional Q-factor expression with respect to the geometrical ratio. The antenna design takes into consideration effects such as degradation at broadside and circular polarisation, as well as input reflection coefficient. The tuning of a delay loop length yields a simple optimization criterion in order to achieve Q-balancing, circular polarisation and a matched configuration. 1. An antenna element comprising a cell of filled circular geometry adapted to operate , when driven in use , in the E01 mode.2. The antenna element of claim 1 , further including a stub configuration adapted to achieve a matched network using a mode rotation condition claim 1 , wherein said cell is coupled to a feed line at a first point on a perimeter of the cell such that the feed line extends tangentially to the cell.3. The antenna element of claim 1 , further including a delay loop configured for mode rotation.4. The antenna element of claim 3 , wherein the delay loop is adapted to achieve Q-balancing claim 3 , mutual coupling compensation and/or tuning of a reflection coefficient within the delay loop length.5. The antenna element of claim 2 , wherein the cell is configured to be coupled to a feed line at a first point on a perimeter of the cell claim 2 , and the delay loop is attached to a side of the cell at points on the perimeter substantially opposite to the side containing the first point.6. The antenna element of claim 5 , wherein a y-direction is defined by or parallel to a line joining the center of the cell with said first point claim 5 , and a line through said ...

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Номер записи: 15
25-01-2018 дата публикации

GRID BRACKET STRUCTURE FOR MM-WAVE END-FIRE ANTENNA ARRAY

Номер: US20180026376A1
Автор: Lee Jae Seung, Li Meijiao, Schmalenberg Paul D.
Принадлежит:

Bracket structures that structurally support and enhance the performance of millimeter-wave tapered-slot end-fire antennas for use in vehicular radar systems. The system includes a first longitudinal rib and a second longitudinal rib, each defining a first longitudinal slot and having a transmission end and a chip connection end. The system includes a crossbeam coupled to the first longitudinal rib and the second longitudinal rib. The system includes a first end-fire antenna having a transmission end that is received by the first longitudinal slot and a chip connection end. The first end-fire antenna is designed to transmit a first signal having a first phase. The system includes a second end-fire antenna having a transmission end that is received by the second longitudinal slot and a chip connection end. The second end-fire antenna is designed to transmit a second signal having a second phase that is different than the first phase. 1. A structurally supported millimeter-wave end-fire antenna system for use in vehicular radar systems comprising:a first longitudinal rib having a width, a height that is greater than the width, and a length that is greater than the height, defining a first longitudinal slot extending for a portion of the length of the first longitudinal rib, and having a transmission end and a chip connection end;a second longitudinal rib parallel to the first longitudinal rib, having a width, a height that is greater than the width, and a length that is greater than the height, defining a second longitudinal slot extending for a portion of the length of the first longitudinal rib, and having a transmission end and a chip connection end;a longitudinal crossbeam coupled to the first longitudinal rib and the second longitudinal rib and extending in a direction perpendicular to the first longitudinal rib and the second longitudinal rib;a first end-fire antenna having a height that is less than the height of the first longitudinal rib, a transmission end ...

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Номер записи: 16
30-01-2020 дата публикации

In-cabin communication system

Номер: US20200036098A1
Автор: Munenori Matsumoto
Принадлежит: Denso Corp

An in-cabin communication system performs wireless communication between a vehicle and a portable terminal carried by an occupant. The in-cabin communication system includes: a vehicular device mounted to the vehicle; and a leaky coaxial cable that is connected to the vehicular device, and that outputs an electromagnetic wave having a predetermined wavelength according to a command from the vehicular device. The leaky coaxial cable is disposed inside a steel plate of a body of the vehicle. The leaky coaxial cable is disposed at a predetermined distance, which corresponds to an integer multiple of a half-wavelength of the predetermined wavelength, from the steel plate.

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Номер записи: 17
04-02-2021 дата публикации

Wireless communication system and flying object

Номер: US20210036430A1
Автор: Fumihito Soma, Hidenobu UDA, Takeo Umemura, Takuya Koyama
Принадлежит: Mitsubishi Heavy Industries Ltd

A wireless communication system including a shield room forming section, leaky transmission line, first antenna, first device, second antenna and second device. The shield room forming section covers an internal space with an electromagnetic wave reflector that blocks wireless communication. The leaky transmission line is provided with first and second leakage parts arranged inside the shield room forming section. The first antenna is arranged inside the shield room forming section and configured to be wirelessly communicable with the first leakage part. The first device is arranged inside the shield room forming section and has the first antenna. The second antenna is arranged inside the shield room forming section and configured to be wirelessly communicable with the second leakage part. The second device is arranged inside the shield room forming section and has the second antenna. The first device and the second device perform direct two-way wireless communication with each-other.

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Номер записи: 18
24-02-2022 дата публикации

ANTENNA FOR SUPPRESSING THE GAIN OF SIDE LOBES

Номер: US20220059937A1
Автор: Chen You-Chu, Kuo Shin-Lung
Принадлежит:

An antenna for suppressing the gain of side lobes is disclosed, including a substrate, tandem antenna units arranged on the substrate and each including a first feed line and radiating elements, and the width of the radiating elements decreasing gradually from the middle of the first feed line to the two ends; and a power divider disposed on the substrate and including a feed port, a second feed line with middle connected to the fed port, and transmission lines, connected to the second feed line respectively. The output powers of the transmission lines decrease gradually from the middle of the second feed line to the two ends, and the transmission lines are respectively connected to the first feed lines. Thereby, the present invention can effectively suppress the gain of the side lobe both in YZ plane and the XZ plane, and improve target detection. 1. An antenna for suppressing the gain of side lobes , comprising:a substrate;a plurality of tandem antenna units, the tandem antenna units being arranged on the substrate at intervals, and each comprising a first feed line and a plurality of radiating elements; the radiating elements being arranged at intervals on the first feed line, and each radiating element being rectangular; widths of the radiating elements gradually decreasing from middle of the first feed line to both ends of the first feed line; anda power divider; the power divider being arranged on the substrate and comprising a feeding port, a second feed line and a plurality of transmission lines; the middle of the second feed line is connected to the feeding port; the transmission lines being respectively connected to the second feed line and arranged at intervals; output powers of the transmission lines gradually decreasing from middle of the second feed line to both ends of the second feed line, and the transmission lines being respectively connected to the first feed lines.2. The antenna for suppressing the gain of side lobes according to claim 1 , ...

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Номер записи: 19
16-02-2017 дата публикации

WAVEGUIDE DEVICE WITH SEPTUM FEATURES

Номер: US20170047661A1
Автор: NGUYEN DOMINIC Q., PAREKH SHARAD V.
Принадлежит:

Methods, systems, and devices are described that include one or more septum features to improve performance of a waveguide device. In particular, the septum features may be utilized within a polarizer section of a polarizer device such as a septum polarizers. The septum feature(s) may be a ridge. When a plurality of septum features are employed, the location, size, shape and spacing may vary according to a particular design. 1. A waveguide device , comprising:a common waveguide section;a divided waveguide section having a first divided waveguide associated with a first basis polarization and a second divided waveguide associated with a second basis polarization; first and second septum surfaces parallel to the central axis and extending between the opposing sidewalls of the first set; and', 'a ridge that protrudes from at least one of the first or second septum surfaces, the ridge having a longitudinal axis extending in a direction of the central axis., 'a polarizer section coupled between the common waveguide section and the divided waveguide section, the polarizer section comprising a central axis in a direction between the common waveguide section and the divided waveguide section, a first set of opposing sidewalls, a second set of opposing sidewalls, and a septum extending between the opposing sidewalls of the first set and forming a boundary between the first and second divided waveguides, the septum including2. The waveguide device of claim 1 , wherein the septum comprises:a plurality of ridges, each ridge from the plurality of ridges protruding from at least one of the first and second septum surfaces.3. The waveguide device of claim 2 , wherein the plurality of ridges comprises at least two ridges of different sizes.4. The waveguide device of claim 1 , wherein the septum comprises:a first ridge protruding from the first septum surface; anda second ridge protruding from the second septum surface.5. The waveguide device of claim 4 , wherein the first ridge and ...

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Номер записи: 20
14-02-2019 дата публикации

METHOD AND APPARATUS FOR SEMITRANSPARENT ANTENNA AND TRANSMISSION LINES

Номер: US20190051969A1
Автор: Bilik Igal, Kona Keerti S., Sharifi Hasan, SONG HYOK JAE, Yajima Melanie S.
Принадлежит:

The present application generally relates communications and hazard avoidance within a monitored driving environment. More specifically, the application teaches a system for semi-transparent and flexible millimeter wave circuits and antennas using inexpensive PET substrate. The system facilitates the fabrication of millimeter wave circuits, transmission lines and antennas in various optically transparent platform where optical transparency is desired, for example in automotive radar in windows, windshield, and rear/side mirrors. 1. An apparatus comprising:a dielectric material having a first surface and a second surface;a first conductor formed on the first surface wherein the first conductor is formed in a honeycomb pattern;a second conductor formed on the second surface wherein the second conductor is formed in a honeycomb pattern.2. The apparatus of wherein the honeycomb pattern is formed from six sided cells wherein the edges of the cell are formed from a conductive material and the inside of the cell is void of conductive material.3. The apparatus of wherein the honeycomb pattern is formed from eight sided cells and four sided cells and wherein the edges of the eight sided cells are formed from a conductive material and the inside of the cell is void of conductive material.4. The apparatus of where the first conductor is a transmission line.5. The apparatus of wherein the first conductor is a transmission line having a width of four hundred and forty micrometers.6. The apparatus of wherein the second conductor is a ground plane having a width greater than a width of the first conductor.7. The apparatus of wherein the dielectric material is transparent.8. The apparatus of wherein the dielectric material is translucent.9. An antenna comprising:a dielectric material having a first surface and a second surface;an element formed on the first surface wherein the element is formed in a honeycomb pattern; anda ground plane formed on the second surface wherein the ...

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Номер записи: 21
25-02-2021 дата публикации

CHANNELISED GAIN CONTROL OF LINE AMPLIFIERS

Номер: US20210058048A1
Автор: Pope Gregory Steven, SNELL Christopher John
Принадлежит: RF Industries Pty Ltd

A method for controlling gain of a line amplifier on a cable, the method comprising selecting an unused carrier frequency; transmitting a pulsed pilot signal on the unused carrier frequency into the cable; determining a pilot signal output strength by measuring signal strength of the pilot signal after amplification by the line amplifier; comparing the pilot signal output strength with a target signal strength to determine a difference; and adjusting the gain of the line amplifier corresponding to the difference. 1. A method for controlling gain of a line amplifier on a cable , the method comprising:selecting an unused carrier frequency;transmitting a pulsed pilot signal on said unused carrier frequency into said cable;determining a pilot signal output strength by measuring signal strength of said pilot signal after amplification by said line amplifier;comparing the pilot signal output strength with a target signal strength to determine a difference; andadjusting the gain of said line amplifier corresponding to said difference.2. A method as claimed in claim 1 , wherein the pilot signal is encoded with the target signal strength.3. A method as claimed in claim 1 , further comprising decoding the amplified pilot signal in order to determine the target signal strength.4. A method as claimed in claim 1 , wherein the gain of the line amplifier is adjusted such that a level of the pilot signal is lower than any voice channel signals.5. A method as claimed in claim 4 , wherein the level of the pilot signal is around 15 dB to 20 dB lower than the voice channel signals.6. A method as claimed in claim 4 , wherein the gain of the line amplifier is adjusted automatically in response to determining the difference.7. A method as claimed in claim 6 , wherein the gain of the line amplifier is adjusted repeatedly until a determination that there is no difference between the target signal strength and the pilot signal output strength of the amplified pilot signal.8. A method as ...

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Номер записи: 22
02-03-2017 дата публикации

COMMUNICATION CABLES WITH ILLUMINATION

Номер: US20170059150A1
Автор: Wenger Daniel
Принадлежит:

Methods and systems are provided for enhanced communication cables configurable for distribution of data signals. Such communication cables may have leaky feeder structures, for use in the distribution of data signals. An example communication cable may be configured for supporting at least two separate functions, comprising distribution of data signals and at least one other different function. The communication cable may comprise a core conductor, an insulation shield, an outer conductor that comprises a plurality of apertures, a jacket, and an arrangement arranged at least along sections of a length of the cable, the arrangement being configured for supporting the at least one other different function. The one other different function may comprise illumination. The arrangement may comprise an illumination arrangement which may be arranged at least along sections of the length of the communication cable. 116-. (canceled)17. A system comprising: a core conductor;', 'an insulation shield;', 'an outer conductor that comprises a plurality of apertures;', 'a jacket; and', 'an arrangement arranged at least along sections of a length of said cable, said arrangement being configured for supporting said at least one other different function., 'a cable configured for supporting at least two separate functions, comprising distribution of data signals and at least one other different function, said cable comprising18. The system of claim 17 , wherein said cable comprises a leaky feeder structure claim 17 , for use in said distribution of data signals.19. The system of claim 17 , wherein one or both of said core conductor and said outer conductor are operable to power said arrangement.20. The system of claim 17 , wherein said at least one other different function comprises illumination.21. The system of claim 17 , wherein said arrangement is arranged radially inside said jacket.22. The system of claim 17 , wherein said jacket is transparent claim 17 , or comprises one or more ...

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Номер записи: 23
02-03-2017 дата публикации

Miniaturized Reconfigurable CRLH Metamaterial Leaky-Wave Antenna Using Complementary Split-Ring Resonators

Номер: US20170062943A1
Автор: Dandekar Kapil R., Patron Damiano
Принадлежит:

Composite Right/Left Handed (CRLH) Leaky-Wave Antennas (LWAs) are a class of radiating elements characterized by an electronically steerable radiation pattern. The design is comprised of a cascade of CRLH unit-cells populated with varactor diodes. By varying the voltage across the varactor diodes, the antenna can steer its directional beam from broadside to backward and forward end-fire directions. A CRLH Leaky-Wave Antenna for the 2.4 GHz Wi-Fi band is miniaturized by etching a Complementary Split-Ring Resonator (CSRR) underneath each CRLH unit-cell. As opposed to conventional LWA designs, the LWA layout does not require thin interdigital capacitors, significantly reducing the PCB manufacturing constraints required to achieve size reduction. The resulting antenna enables CRLH LWAs to be used not only for wireless access points, but also potentially for mobile devices. 1. A reconfigurable leaky-wave antenna comprising a plurality of cascaded metamaterial unit cells where each unit cell has a complementary resonator in its ground plane , and adjustable varactor diodes that are biased to change a propagation constant through the plurality of cascaded metamaterial unit cells so that a directive beam from the antenna can be steered around an azimuth plane.2. An antenna as in claim 1 , wherein the metamaterial unit cells comprise CRLH unit cells placed on top of complementary resonators in the ground plane.3. An antenna as in claim 1 , wherein the complementary resonator is a split-ring resonator.4. An antenna as in claim 2 , wherein the complementary resonator has a shape and a number for each unit cell that is varied based on the size claim 2 , frequency claim 2 , bandwidth claim 2 , or radiation pattern characteristics of the CRLH unit cell.5. An antenna as in claim 4 , wherein the complementary resonator is triangular or rectangular in shape.6. A method of forming a reconfigurable leaky-wave antenna comprising etching a complementary resonator in a ground plane for ...

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Номер записи: 24
11-03-2021 дата публикации

WAVEGUIDE AND ANTENNA

Номер: US20210075118A1
Автор: Constantinides Constantin, GOUSSETIS George, Mateo-Segura Carolina, Podilchak Symon, Rotenberg Samuel
Принадлежит:

A waveguide for a leaky wave antenna is described. The waveguide comprises a male member (A-T) and a corresponding female member (A-T) arranged to receive the male member (A-T) therein. The waveguide is arrangeable in a first configuration and a second configuration. The male member (A-T) is received in the female member (A-T) spaced apart therefrom in the first configuration and the second configuration. The first configuration defines a first effective delay line. The second configuration defines a second effective delay line. The first effective delay line is different from the second effective delay line. The leaky wave antenna is also described. 1. A meandered waveguide , preferably a metallic meandered slotted waveguide , for a leaky wave antenna , the waveguide comprising:a male member; anda corresponding female member arranged to receive the male member therein;wherein the waveguide is arrangeable in a first configuration and a second configuration;wherein the male member is received in the female member spaced apart therefrom in the first configuration and the second configuration;wherein the first configuration defines a first effective delay line;wherein the second configuration defines a second effective delay line; andwherein the first effective delay line is different from the second effective delay line.2. The waveguide according to claim 1 , wherein the first effective delay line is based claim 1 , at least in part claim 1 , on a first meander line length and wherein the second effective delay line is based claim 1 , at least in part claim 1 , on a second meander line length claim 1 , wherein the first meander line length is different from the second meander line length.3. The waveguide according to claim 2 , wherein the waveguide is arranged to move from the first configuration to the second configuration by a translation of the male member relative to the female member.4. The waveguide according to claim 3 , wherein the translation is in a ...

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Номер записи: 25
17-03-2016 дата публикации

Antenna with Resonant Cavity

Номер: US20160079678A1
Автор: De Lustrac Andre, Germain Dylan
Принадлежит:

The invention relates to an antenna comprising a resonant cavity deliminated by a partially reflecting surface comprising an array of resonant cells, each resonant cell forming a micro-antenna, a totally reflecting surface facing said partially reflecting surface, a radiating source disposed in said resonant cavity and configured so as to radiate a wave between the partially reflecting surface and the totally reflecting surface, said wave illuminating resonant cells of the partially reflecting surface, the partially reflecting surface being curved and resonant cells being individually configured to introduced upon the passage of the incident wave radiated by the source a phase shift dependent on the curvature of the partially reflecting surface at the level of the corresponding resonant cell. 2. The antenna according to claim 1 , wherein each resonant cell (Cr) is configured so as to introduce on an incident wave a phase shift according to the curvature of the partially reflecting surface at the level of said resonant cell claim 1 , in such a way that the array of resonant cells acts as an array of antennas distributed over a predefined different surface.4. The antenna according to claim 3 , wherein the metal zones of the inductive grid (GL) and of the capacitive grid (GC) are arranged according to parallel directions.5. The antenna according to claim 3 , wherein the phase shift introduced on the incident wave by a resonant cell (Cr) is adjusted by modifying the capacitance of the capacitive grid (GC) at the level of said resonant cell.6. The antenna according to one of claim 3 , wherein the phase shift introduced on the incident wave by a resonant cell (Cr) is adjusted by modifying the induction of the inductive grid (GL) at the level of said resonant cell.7. The antenna according to one of claim 3 , wherein two adjacent electrical contacts of the capacitive grid (GC) are electrically connected by a variable-capacity diode claim 3 , with the polarisation voltage of ...

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Номер записи: 26
16-03-2017 дата публикации

ARTICLE MANAGEMENT SYSTEM

Номер: US20170077588A1
Автор: Fukuda Hiroshi
Принадлежит: NEC Corporation

A problem with conventional article management systems has been that the management scheme for articles. The present invention addresses this problem by providing an article management system comprising: a transmitting antenna for transmitting a radio signal; a receiving antenna for receiving a radio signal; a article to be managed positioning region whereat articles to be managed are placed; an RF tag provided with a tag transmitting unit which electromagnetically couples with the transmitting antenna and the receiving antenna; and an RFID reader which sends a transmission signal to the RF tag via the transmitting antenna and receives a response signal outputted by the tag transmitting unit via the receiving antenna. The RFID reader detects whether or not a article to be managed is present by detecting for changes in the operation characteristics of the tag transmitting unit due to the article to be managed according to changes in either the strength or phase of the response signal from the RF tag. 1. An article management system comprising:a transmitting antenna that include an open-type transmission line with matched termination and transmits a radio signal;a receiving antenna that includes an open-type transmission line, and receives a radio signal;an management-target article positioning region in which an article to be managed is placed;an RF tag provided with tag transmission unit that electromagnetically couples with the transmitting antenna and the receiving antenna in the article to be managed positioning region; andan RFID reader that transmits a transmission signal to the RF tag through the transmitting antenna and receives a response signal output by the tag transmission unit through the receiving antenna, whereinthe RFID reader detects presence or absence of the article to be managed, by detecting a change in an operation characteristic of the tag transmission unit caused by the article to be managed, by use of a change in strength or phase of the ...

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Номер записи: 27
18-03-2021 дата публикации

PASSIVE EXTENDER COMMUNICATION SYSTEM FOR WIRELESS ELEVATOR COMMUNICATION

Номер: US20210083757A1
Автор: Gustafson Bruce David
Принадлежит:

A communication system provides wireless communication in locations of restricted movement. Restricted movement may include static locations (for example, buildings and tunnels) or moving vehicles (for example, elevators, trains, and ships). A wireless antenna may be connected to an external telecommunications source through a radiant cable. Wireless signals may thus provide communication from locations that were previously subject to spotty or unreachable signal. Direct communication from occupants may be provided. Some embodiments may provide monitoring or equipment or the environment that previously required a hardwired line. 1. A passive extender communication system for wireless elevator communication or in other places of restricted movement , comprising:a first antenna assembly mounted to an interior of an elevator car, wherein the first antenna assembly is configured to receive and transmit wireless radio frequency (RF) signals from the interior of the elevator car to an exterior of the elevator car;a radiant antenna cable positioned in an elevator shaft, wherein the radiant antenna cable is RF linked to the first antenna assembly; and the telecommunication signal source is positioned externally from the elevator car, and', 'the telecommunication signal source is configured to transmit RF signals to the first antenna assembly and to receive RF signals from the first antenna assembly, through the radiant antenna cable., 'a telecommunication signal source connected to the radiant antenna cable, wherein2. The system of claim 1 , further comprising:a multiplexer/mixer connected between the telecommunication signal source and the antenna radiant cable.3. The system of claim 2 , wherein:the telecommunication signal source comprises a plurality of different type signal sources managed by the multiplexer to communicate with the first antenna assembly.4. The system of claim 1 , wherein the first antenna assembly comprises an inside antenna module mounted to the ...

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Номер записи: 28
31-03-2022 дата публикации

Methods and apparatus for non-lethal weapons

Номер: US20220099413A1
Автор: Frederick Lee Newton
Принадлежит: Individual

A hand-held nonlethal weapon comprises a body and a battery coupled to the body. The hand-held nonlethal weapon further comprises a power supply operably coupled to the battery. The hand-held nonlethal weapon further comprises a power amplifier operably coupled to the power supply. The power amplifier is operable to produce a nonlethal beam of energy. The hand-held nonlethal weapon further comprises a beamformer operably coupled to the power amplifier, the beamformer being operable to shape and direct a nonlethal beam of energy. The hand-held nonlethal weapon further comprises a trigger coupled to the body and operably coupled to the power amplifier and to the beamformer, wherein the trigger is operable to be activated and wherein activating the trigger is operable to initiate the formation of a nonlethal beam of energy and wherein the nonlethal beam of energy is operable to be projected from the body.

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Номер записи: 29
09-04-2015 дата публикации

Doppler-nulling traveling-wave antenna relays for high-speed vehicular communications

Номер: US20150099459A1
Автор: Gary L. Duerksen
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

An antenna relay system for facilitating wireless communication between mobile terminals on a high-speed rail vehicle and stationary base stations with substantially reduced Doppler shift effects comprises matched traveling wave directional antennas mounted to a high-speed rail vehicle and positioned collinearly alongside the railway. Both antennas continually transmit and receive at a fixed angle relative to the motion of the train so as to circumvent the Doppler shift. The signal transmitted or received by the stationary antenna is conducted to a nearest node for communication with an access network.

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Номер записи: 30
01-04-2021 дата публикации

Phase Shifter, Antenna System, and Communications Device

Номер: US20210098886A1
Автор: Dai Canrong, Qi Meiqing, Wei Xiaofei
Принадлежит:

A phase shifter includes a radio frequency input transmission line, a radio frequency output transmission line, and a first branch and a second branch coupled in parallel between the radio frequency input transmission line and the radio frequency output transmission line, the first branch includes first switch components and first transmission lines coupled in series, and the second branch includes a second transmission line including a first terminal coupled to the radio frequency input transmission line and a second terminal, a third transmission line including a third terminal coupled to the second terminal and a fourth terminal coupled to the radio frequency output transmission line, second switch components, where one terminal of each of the second switch components is coupled to a connection node of the second transmission line and the third transmission line, and the other terminal is coupled to a corresponding grounding component. 1. A phase shifter comprising:a radio frequency input transmission line;a radio frequency output transmission line; a first switch component; and', 'a first transmission line coupled with the first switch component in series; and, 'a first branch located between the radio frequency input transmission line and the radio frequency output transmission line and comprising [ a first terminal coupled to the radio frequency input transmission line;', 'a second terminal; and', 'a first connection node;, 'a second transmission line comprising, a third terminal coupled to the second terminal; and', 'a fourth terminal coupled to the radio frequency output transmission line;, 'a third transmission line comprising, 'a grounding component; and', a fifth terminal coupled to the first connection node and the third transmission line; and', 'a sixth terminal coupled to the grounding component,, 'a second switch component coupled to the grounding component and comprising, 'wherein the first switch component and the second switch component are ...

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Номер записи: 31
29-04-2021 дата публикации

COMMUNICATION CABLES WITH ILLUMINATION

Номер: US20210123595A1
Автор: Wenger Daniel
Принадлежит:

Methods and systems are provided for designing, implementing, and/or using communication cables comprising a leaky feeder structure, which may be configurable for homogeneous distribution of data signals. An example communication cable may comprise a core conductor, an insulation shield surrounding the core conductor, an outer conductor around the insulation shield and having one or more apertures arranged along its length, and a jacket at least partly covering the outer conductor. The communication cable may also comprise an illumination arrangement which may be arranged at least along sections of the length of the cable. The illumination arrangement may comprise a plurality of light emitting units. 1. A system comprising: a core conductor;', 'an insulation shield;', 'an outer conductor that comprises a plurality of apertures;', 'a jacket; and', 'an illumination arrangement arranged at least along sections of a length of the cable., 'communication cable having a leaky feeder structure, for use in distribution of data signals, the communication cable comprising2. The system of claim 1 , wherein one or both of the core conductor and the outer conductor are operable to power the illumination arrangement.3. The system of claim 1 , wherein the illumination arrangement comprises one or more light units.4. The system of claim 1 , wherein the illumination arrangement comprises one or more of: emitting diodes claim 1 , illuminated fiber tubes claim 1 , illuminated fiber strips claim 1 , plastic optical fibers claim 1 , fluorescence units claim 1 , lasers claim 1 , and bulbs.5. The system of claim 1 , wherein the illumination arrangement is arranged radially inside the jacket.6. The system of claim 1 , wherein the jacket is transparent claim 1 , or comprises one or more transparent areas or openings at least in regions of the illumination arrangement.7. The system of claim 1 , wherein:the illumination arrangement comprises one or more light units arranged radially inside the ...

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Номер записи: 32
30-04-2015 дата публикации

Leaky-wave antenna for hearing device

Номер: US20150117687A1
Автор: Dong Wook Kim, Igor SHCHERBATKO
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A leaky-wave antenna for a hearing device, the leaky-wave antenna including a coaxial radiator configured to receive audio signals from an external device and to indicate conductivity, and a grounding area provided in the coaxial radiator, wherein the leaky-wave antenna is connected to a housing of the hearing device.

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Номер записи: 33
07-05-2015 дата публикации

Communication cables with illumination

Номер: US20150122542A1
Автор: Daniel Wenger
Принадлежит: Swisscom AG

Methods and systems are provided for designing, implementing, and/or using communication cables comprising a leaky feeder structure, which may be configurable for homogeneous distribution of data signals. An example communication cable may comprise a core conductor, an insulation shield surrounding the core conductor, an outer conductor around the insulation shield and having one or more apertures arranged along its length, and a jacket at least partly covering the outer conductor. The communication cable may also comprise an illumination arrangement which may be arranged at least along sections of the length of the cable. The illumination arrangement may comprise a plurality of light emitting units.

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Номер записи: 34
09-06-2022 дата публикации

SIGNAL TRANSMISSION APPARATUS FOR RADIATION EQUIPMENT AND RADIATION SYSTEM

Номер: US20220182127A1
Автор: LIU Renqing, LIU Shenfu, ZHAO Hongbin
Принадлежит:

Provided is a signal transmission apparatus for radiation equipment. The signal transmission apparatus includes a first wireless transmission component, the first wireless transmission component includes a first antenna and a second antenna; wherein the first antenna is a loop antenna, and the first antenna is disposed on a gantry in the radiation equipment and is rotatable synchronously with the gantry; and the second antenna is disposed separately from the gantry and is wirelessly connected to the first antenna. 1. A signal transmission apparatus for radiation equipment , comprising a first wireless transmission component , the first wireless transmission component comprising a first antenna and a second antenna; whereinthe first antenna is a loop antenna, and the first antenna is disposed on a gantry in the radiation equipment and is rotatable synchronously with the gantry; andthe second antenna is disposed separately from the gantry and is wirelessly connected to the first antenna.2. The signal transmission apparatus according to claim 1 , wherein the first wireless transmission component further comprises a first wireless bridge and a second wireless bridge; whereinthe first antenna is connected to the first wireless bridge, the first wireless bridge is configured to be connected to a slave computer, and the first wireless bridge and the slave computer are both disposed on the gantry; andthe second antenna is connected to the second wireless bridge, the second wireless bridge is configured to be connected to a host computer, and the second wireless bridge and the host computer are both disposed separately from the gantry.3. The signal transmission apparatus according to claim 2 , whereinthe first antenna is connected to the first wireless bridge via a cable, and the first wireless bridge is connected to the slave computer via a cable; andthe second antenna is connected to the second wireless bridge via a cable, and the second wireless bridge is connected to the ...

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Номер записи: 35
13-05-2021 дата публикации

WIDE-BAND CONFORMAL COAXIAL ANTENNA

Номер: US20210143554A1
Автор: Butherus Das D., Mentesana Nicholas B.
Принадлежит:

Disclosed is a wide-band conformal coaxial antenna conformal to a surface that comprises an inner conductor, an outer conductor, and a dielectric layer. The inner conductor extends towards the surface from a coaxial input below the surface and the outer conductor surrounds the inner conductor extending from the coaxial input to the surface. The dielectric layer is between the inner conductor and the outer conductor. The inner conductor has a first inner conductor diameter at the coaxial input and a second inner conductor diameter at a distal end of the inner conductor at or proximately below the surface. The inner conductor forms an inner conductor surface at the distal end of the inner conductor and the second inner conductor diameter is larger than the first inner conductor diameter. The outer conductor has a first outer conductor diameter at the coaxial input and a second outer conductor diameter at the surface. The second outer conductor diameter is larger than the first outer conductor diameter. 1. A wide-band conformal coaxial antenna (WCCA) conformal to a surface , the WCCA comprising:a coaxial input;an inner conductor extending from the coaxial input to a distal end of the inner conductor, wherein the inner conductor has a first inner conductor diameter at the coaxial input and has a second inner conductor diameter at the distal end, wherein the second inner conductor diameter is larger than the first inner conductor diameter;an outer conductor surrounding the inner conductor and extending from the coaxial input to the surface, wherein the outer conductor has a first outer conductor diameter at the coaxial input and has a second outer conductor diameter at the surface, and wherein the second outer conductor diameter is larger than the first outer conductor diameter; anda dielectric layer between the inner conductor and the outer conductor.2. The WCCA of claim 1 , wherein the dielectric layer includes at least two dielectric materials.3. The WCCA of claim 1 , ...

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Номер записи: 36
25-08-2022 дата публикации

Antenna system for vehicles

Номер: US20220271418A1
Автор: Nima Jamaly
Принадлежит: Swisscom AG

A communication system and method for vehicles, particularly trains, are described with the vehicle having antenna sets. Each antenna set includes a plurality of antennas mounted onto a convex-shaped vehicle roof in which an axis of one antenna set is approximately perpendicular to an axis of another antenna set and in which the antenna sets are mounted below roof level of the convex-shaped vehicle roof A switching device is operable to switch between a first antenna configuration and a second antenna configuration based on a difference in measured signal power received at the antenna sets. The first antenna configuration is associated with a first stationary communication system of the plurality of stationary communication systems and a second antenna configuration is associated with a second stationary communication system of the plurality of stationary communication systems.

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Номер записи: 37
27-05-2021 дата публикации

Radiating Coaxial Cable

Номер: US20210159603A1
Автор: Manninen Mika
Принадлежит:

Disclosed is a radiating coaxial cable comprising an inner conductor, an insulating layer surrounding the inner conductor, a conductive shield surrounding the insulating layer and a jacket surrounding the shield. The conductive shield comprises a radiating longitudinal shield portion with radiating apertures and a non-radiating longitudinal shield portion with no radiating apertures. The jacket comprises a first jacket portion facing the radiating shield portion and a second jacket portion facing the non-radiating shield portion. The first jacket portion is thicker than the second jacket portion. This way, the cable is more protected against detrimental effects of metal objects brought near to or in contact with its radiating side. 1. A radiating coaxial cable comprising:an inner conductor;an insulating layer surrounding and directly contacting the inner conductor;a conductive shield surrounding the insulating layer and comprising a radiating longitudinal shield portion and a non-radiating longitudinal shield portion;a plurality of radiating apertures disposed in the radiating longitudinal shield portion, non-radiating longitudinal shield portion being free from any radiating apertures; anda jacket surrounding the conductive shield and comprising a first jacket portion facing the radiating shield portion and a second jacket portion facing the non-radiating longitudinal shield portion,wherein the first jacket portion is thicker than the second jacket portion.2. The radiating coaxial cable according to claim 1 , wherein the jacket has a cross section having a substantially circular inner contour and a substantially elliptical outer contour.3. The radiating coaxial cable-according to claim 1 , wherein the cross section of the jacket has an outer contour concentric with the conductive shield.4. The radiating coaxial cable according to claim 1 , wherein the cross section of the jacket has an outer contour eccentric relative to the conductive shield.5. The radiating ...

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Номер записи: 38
23-04-2020 дата публикации

COMMUNICATION CABLES WITH ILLUMINATION

Номер: US20200124268A1
Автор: Wenger Daniel
Принадлежит:

Methods and systems are provided for enhanced communication cables which may be configured for supporting at least two separate functions, including distribution of data and at least one other different function. An example enhanced cable may include an arrangement along at least a section of the cable, with that arrangement configured for supporting at least the other different function. The other different function may include illumination. The arrangement may include an illumination arrangement. The cable may include light guiding material configured for use in conjunction with the illumination arrangement. The cable may include a jacket configured to accommodate the arrangement. The cable may include one or more apertures arranged on at least one component of the cable, in accordance with a specific pattern based on the arrangement. A location and/or a shape of at least one aperture may be configured based on at least one component of the arrangement. 116-. (canceled)17. A system comprising: the two separate functions comprising distribution of data and at least one other different function; and', 'the cable comprises an arrangement along at least a section of the cable, the arrangement configured for supporting the at least one other different function., 'a cable configured for supporting at least two separate functions, wherein18. The system of claim 17 , comprising one or more circuits configured for supporting the distribution of data and/or the at least one other different function.19. The system of claim 17 , wherein the at least one other different function comprises illumination.20. The system of claim 17 , wherein the cable comprises one or more conductors claim 17 , and at least one conductor provides power to the arrangement.21. The system of claim 20 , wherein the one or more conductors comprise metal conductors.22. The system of claim 17 , wherein the cable comprises a jacket configured to accommodate the arrangement.23. The system of claim 22 , ...

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Номер записи: 39
21-05-2015 дата публикации

Method for Selecting State of a Reconfigurable Antenna in a Communication System Via Machine Learning

Номер: US20150140938A1
Автор: Dandekar Kapil, Gonzalez David, Gulati Nikhil
Принадлежит:

A method for selecting the state of a reconfigurable antenna installed at either the receiver or transmitter of a communication system is provided. The proposed method uses online learning algorithm based on the theory of multi-armed bandit to perform antenna state selection. The selection technique utilizes the Post-Processing Signal-to-Noise Ratio (PPSNR) as a reward metric and maximizes the long-term average reward over time. The performance of the learning based selection technique is empirically evaluated using wireless channel data. The data is collected in an indoor environment using a 2×2 MIMO OFDM system employing highly directional metamaterial Reconfigurable Leaky Wave Antennas. The learning based selection technique shows performance improvements in terms of average PPSNR and regret over conventional heuristic policies. 1. A method of selecting an antenna array state for a multi-element reconfigurable transmitter and/or receiver antenna , comprising the steps of:a processor executing a learning algorithm that optimizes a wireless link between at least one reconfigurable transmitter antenna and at least one reconfigurable receiver antenna over time over different antenna array states of said at least one reconfigurable transmitter antenna and said at least one reconfigurable receiver antenna; andthe processor setting the antenna array configuration for the transmitter and/or a receiver antenna based at least in part on the antenna array states determined by said learning algorithm to lead to an optimized wireless link between said at least one reconfigurable transmitter antenna and said at least one reconfigurable receiver antenna over time,wherein executing the learning algorithm includes formulating selection of an antenna array state as a multi-armed bandit problem for learning unknown wireless channel conditions of said wireless link so as to maximize the wireless link between said at least one reconfigurable transmitter antenna and said at least one ...

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Номер записи: 40
23-04-2020 дата публикации

TFT SUBSTRATE, SCANNING ANTENNA PROVIDED WITH TFT SUBSTRATE, AND METHOD FOR PRODUCING TFT SUBSTRATE

Номер: US20200127012A1
Автор: Misaki Katsunori
Принадлежит:

A TFT substrate includes a dielectric substrate and a plurality of antenna unit regions arranged on the dielectric substrate. Each of the plurality of antenna unit regions includes a TFT and a patch electrode electrically connected to a drain electrode of the TFT. The TFT substrate includes a source metal layer including a source electrode of the TFT, the drain electrode, a source bus line connected to the source electrode, and the patch electrode, a gate metal layer formed on the source metal layer and including a gate electrode of the TFT and a gate bus line connected to the gate electrode, a gate insulating layer formed between the source metal layer and the gate metal layer, and a conductive layer formed on the gate metal layer, and the TFT substrate does not include an insulating layer between the gate metal layer and the conductive layer. 1. A TFT substrate comprising:a dielectric substrate;a plurality of antenna unit regions arranged on the dielectric substrate;a transmission and/or reception region including the plurality of antenna unit regions; anda non-transmission and/or reception region located in a region other than the transmission and/or reception region,with each of the plurality of antenna unit regions including a TFT and a patch electrode electrically connected to a drain electrode of the TFT,the TFT substrate further comprising:a source metal layer supported by the dielectric substrate and including a source electrode of the TFT, the drain electrode, a source bus line connected to the source electrode, and the patch electrode;a gate metal layer formed on the source metal layer and including a gate electrode of the TFT and a gate bus line connected to the gate electrode;a gate insulating layer formed between the source metal layer and the gate metal layer; anda conductive layer formed on the gate metal layer,wherein the TFT substrate does not include an insulating layer between the gate metal layer and the conductive layer.2. The TFT substrate ...

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Номер записи: 41
19-05-2016 дата публикации

ANTENNA ARRANGEMENT

Номер: US20160141763A1
Автор: Asplund Henrik, Derneryd Anders, Medbo Jonas
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

An antenna arrangement comprising at least a first and a second elongated structure, e.g., a coaxial cable, for guiding an electromagnetic wave is provided. Each of said structures comprises a plurality of radiation elements. The structures are positioned alongside each other in their longitudinal direction of extension forming a bundle. The elongated structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension. 1. An antenna arrangement comprising at least a first and a second elongated structure for guiding an electromagnetic wave , each of said structures comprising a plurality of radiation elements , wherein said plurality of radiation elements are through-going perforations in said elongated structure , each of said structures exhibiting a longitudinal direction of extension , said structures are positioned alongside each other in their longitudinal direction of extension forming a bundle , and said structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension.2. The antenna arrangement according to claim 1 , wherein said structures form a flat bundle.3. The antenna arrangement according to claim 2 , wherein said structures are plaited claim 2 , braided claim 2 , pleated or wounded.4. The antenna arrangement according to claim 2 , wherein at least one of said structures is folded at a first side of the bundle to a second side of the bundle.5. The antenna arrangement according to claim 1 , wherein said structures form a circular bundle.6. The antenna arrangement according to claim 5 , wherein said structures are twisted.7. The antenna arrangement according to claim 5 , wherein the bundle comprises a core and said structures are twisted around said core.8. The antenna arrangement according to claim 1 , wherein said structures are one of the following: a coaxial cable claim 1 , a waveguide ...

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Номер записи: 42
16-05-2019 дата публикации

A leaky-wave slotted microstrip antenna

Номер: US20190148822A1
Автор: Arnold Möbius
Принадлежит: Veoneer Sweden AB

A microstrip antenna includes at least one dielectric material forming a dielectric layer structure having a first main side, at least one antenna structure formed on the first main side; and a ground plane. The dielectric layer structure is positioned between said antenna structure and the ground plane (19, 43). Each of said at least one antenna structure comprises a microstrip conductor that in turn comprises a slot structure. For each of said at least one antenna structure, the microstrip conductor and the slot structure mainly extend in the direction of a longitudinal extension.

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Номер записи: 43
16-05-2019 дата публикации

VEHICLE CABIN MOBILE DEVICE DETECTION SYSTEM

Номер: US20190149611A1
Автор: FARREY Gregory, Gorovets Boris, HAZEBROUCK Laura, Locke John, Mueller Paul
Принадлежит:

A vehicle includes at least one and/or one or more in-vehicle and/or onboard controller(s) that is/are coupled to spaced apart sensor groups that are arrayed within a headliner and/or seats of the vehicle cabin. Each sensor group generally corresponds to and/or with a plurality of and/or one or more seat positions, each having a single seat, and which include a driver zone seat position that has a driver seat. Each sensor group in the array includes at least one signal processor, and a plurality of transceivers, antennas, and/or sensors configured for and tuned to different electromagnetic frequencies and/or powers. Also included are electromagnetically active, directional waveguides that adjust, amplify, and/or attenuate the sensitivity of each of the respective antennas, to electromagnetic energy detected and received from mobile devices located in the vehicle cabin, such that the sensitivity is limited to electromagnetic emissions within a limited effective range for each antenna. 1. A vehicle , comprising: detect first and second RAT frequencies from a mobile device using one of the sensor groups; and', 'generate mobile device and vehicle commands based on the detected RAT frequencies and the seating location for the one sensor group., 'a controller coupled to in-cabin sensor groups each for a different seating location and including antennas each tuned to a different radio access technology (RAT) frequency of a mobile device, the controller configured to'}2. The vehicle according to claim 1 , wherein the sensor groups are integrated into a headliner of the cabin claim 1 , each sensor group is positioned to correspond to the seating location for the sensor group and has an effective range substantially limited to the seating location for the sensor group claim 1 , and the controller is configured to:determine a seating location of the mobile device based on the seating location for the one sensor group that detects the first and second RAT frequencies from the ...

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Номер записи: 44
16-05-2019 дата публикации

VEHICLE CABIN MOBILE DEVICE SENSOR SYSTEM

Номер: US20190149612A1
Автор: FARREY Gregory, Mueller Paul
Принадлежит:

A vehicle includes at least one and/or one or more in-vehicle and/or onboard controller(s) that is/are coupled to spaced apart sensor groups that are arrayed within a headliner and/or seats of the vehicle cabin. Each sensor group generally corresponds to and/or with a plurality of and/or one or more seat positions, each having a single seat, and which include a driver zone seat position that has a driver seat. Each sensor group in the array includes at least one signal processor, and a plurality of transceivers, antennas, and/or sensors configured for and tuned to different electromagnetic frequencies and/or powers. Also included are electromagnetically active, directional waveguides that adjust, amplify, and/or attenuate the sensitivity of each of the respective antennas, to electromagnetic energy detected and received from mobile devices located in the vehicle cabin, such that the sensitivity is limited to electromagnetic emissions within a limited effective range for each antenna. 1. A vehicle comprising: detect a mobile device communication using one of the sensor groups; and', 'generate mobile device and vehicle commands based on the seating position specific to the one sensor group and a keycode received from the mobile device., 'a controller coupled to in-cabin sensor groups each specific to a different seating position and including antennas each tuned to a different mobile device communication protocol frequency, the controller configured to'}2. The vehicle according to claim 1 , wherein each sensor group comprises at least one waveguide configured to establish an effective range for the sensor group substantially limited to the seating position for the sensor group.3. (canceled)4. (canceled)5. (canceled)6. The vehicle according to claim 2 , wherein each sensor group is integrated into a headliner of the cabin above the seating position for the sensor group claim 2 , and the at least one waveguide of each sensor group has a directional orientation ...

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Номер записи: 45
09-06-2016 дата публикации

MODULATION PATTERNS FOR SURFACE SCATTERING ANTENNAS

Номер: US20160164175A1
Автор: CHEN PAI-YEN, Driscoll Tom, Ebadi Siamak, Hunt John Desmond, JR. Milton, Landy Nathan Ingle, Machado Melroy, Perque, Smith David R., Urzhumov Yaroslav A.
Принадлежит:

Modulation patterns for surface scattering antennas provide desired antenna pattern attributes such as reduced side lobes and reduced grating lobes. 158.-. (canceled)59. The method of claim 111 , further comprising:adjusting the surface scattering antenna to the identified antenna configuration.60. The method of claim 111 , further comprising:operating the surface scattering antenna in the identified antenna configuration.61. The method of claim 111 , further comprising:storing the identified antenna configuration in a storage medium.62110.-. (canceled)111. A method claim 111 , comprising: identifying a discrete plurality of locations on the aperture for a discrete plurality of scattering elements of the surface scattering antenna and', 'identifying a discrete set of states for each of the scattering elements corresponding to a discrete set of function values at each of the locations of the scattering elements; and, 'discretizing a hologram function for a surface scattering antenna that defines an aperture, where the discretizing includes'}identifying an antenna configuration that reduces artifacts attributable to the discretizing, 'altering the hologram function to correspond to a new antenna pattern having a new main beam with an new direction and phase, the new direction and phase being selected to optimize a desired cost function for the new antenna pattern.', 'wherein the hologram function corresponds to a selected antenna pattern having a main beam with a selected direction and phase, and the identifying of the antenna configuration includes112. The method of claim 111 , wherein the cost function maximizes a gain of the surface scattering antenna claim 111 , maximizes a directivity of the surface scattering antenna claim 111 , minimizes a half-power beamwidth of the new main beam claim 111 , minimizes a height of a highest side lobe relative to the new main beam of the new antenna pattern claim 111 , or minimizes a height of a highest grating lobe relative to ...

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Номер записи: 46
07-06-2018 дата публикации

SURFACE SCATTERING ANTENNAS WITH LUMPED ELEMENTS

Номер: US20180159245A1
Автор: CHEN PAI-YEN, Driscoll Tom, Ebadi Siamak, Hunt John Desmond, JR. Milton, Landy Nathan Ingle, Machado Melroy, McCandless Jay Howard, Perque, Smith David R., Urzhumov Yaroslav A.
Принадлежит:

Surface scattering antennas with lumped elements provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure. In some approaches, the surface scattering antenna is a multi-layer printed circuit board assembly, and the lumped elements are surface-mount components placed on an upper surface of the printed circuit board assembly. In some approaches, the scattering elements are adjusted by adjusting bias voltages for the lumped elements. In some approaches, the lumped elements include diodes or transistors. 1. A multi-layer assembly , comprising:a waveguide;a plurality of antenna elements coupled to the waveguide; anda plurality of surface-mount components positioned on an upper surface of the multi-layer assembly and configured to adjust radiation characteristics of the antenna elements.2. The assembly of claim 1 , wherein the waveguide is a substrate-integrated waveguide.3. The assembly of claim 1 , wherein the waveguide is a stripline waveguide.4. The assembly of claim 1 , wherein the plurality of surface-mount components includes a plurality of flip-chip components.5. The assembly of claim 2 , wherein the substrate-integrated waveguide includes a dielectric substrate defining an interior of the waveguide claim 2 , a first conducting surface above the substrate defining a ceiling of the waveguide claim 2 , a second conducting surface below the substrate defining a floor of the waveguide claim 2 , and one or more colonnades of vias between the first conducting surface and the second conducting surface defining the walls of the waveguide.6. The assembly of claim 5 , wherein the dielectric substrate is a first printed circuit board laminate claim 5 , the first conducting surface is a portion of a first metal cladding on an upper side of the first printed circuit board laminate claim 5 , and the second conducting surface is a portion of second metal cladding on a lower side of the first printed circuit board laminate. ...

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Номер записи: 47
23-05-2019 дата публикации

Multi frequency signatures using nano/microscale three dimensional printed structures

Номер: US20190156083A1
Автор: Michael T. Khbeis, William D. Meadow
Принадлежит: Locatorx Inc

The present invention provides a series of structures that provide a unique electromagnetic signature that can be used as a standalone device or as part of a larger security system. This structure's design method of manufacturing ensures that is resilient to commonly used techniques for reverse engineering electronic components and counterfeiting and is able to be applied to devices or any product before or after fabrication is completed.

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Номер записи: 48
18-06-2015 дата публикации

ANTENNA ARRANGEMENT STRUCTURE FOR VEHICLE COMMUNICATION APPARATUS

Номер: US20150171510A1
Автор: Hirose Motohisa
Принадлежит: HONDA MOTOR CO., LTD.

An interior antenna of a vehicle communication apparatus for performing wireless communication with a portable terminal device present inside cabin is disposed in the cabin. The interior antenna includes left and right leaky coaxial cables that can transmit high-frequency band radio waves into the cabin. The left and right leaky coaxial cables are positioned under the cabin and inside left and right door inner panels in a vehicle with direction, either above left and right side sills or at end portions in the vehicle width direction above a floor panel, and extend in a vehicle front-rear direction. 1. An antenna arrangement structure for a vehicle communication apparatus , in which interior antennas are arranged inside a vehicle interior surrounded by a vehicle body including right and left side sills formed of material reflecting an electromagnetic wave and extending in a longitudinal direction of the vehicle body , a floor panel laid between the right and left side sills , and respective door inner panels of right and left doors positioned in a vicinity of the right and left side sills , and the interior antennas can communicate with a portable terminal device existing inside the vehicle interior over radio ,wherein the interior antennas include right and left leaky coaxial cables capable of transmitting, to inside of the vehicle interior, a radio wave of a high-frequency zone having at least a frequency of 150 MHz generated by a signal generator, andthe right and left leaky coaxial cables are positioned, on a more inner side in a vehicle width direction than the right and left door inner panels, either at a lower portion of the vehicle interior and on the right and left side sills or at the lower portion of the vehicle interior and on both end portions in the vehicle width direction of the floor panel, and extend in a vehicle longitudinal direction.2. The antenna arrangement structure for a vehicle communication apparatus according to claim 1 , wherein the right ...

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Номер записи: 49
30-05-2019 дата публикации

METHOD AND APPARATUS FOR REACTANCE CONTROL IN A TRANSMISSION LINE

Номер: US20190165480A1
Автор: Achour Maha, Daniel George
Принадлежит:

Examples disclosed herein relate to methods and apparatuses for a radiating structure to radiate a transmission signal, where the radiating structure incorporates reactance control elements to change a reactance of transmission lines and/or radiating unit cell elements, and a resonant coupler to isolate the transmission signal from a reactance control signal to the reactance control elements. A reactance control signal, such as a bias voltage, controls the reactance of transmission lines of the transmission array structure and/or the radiating unit cell elements so as to change the phase of the transmission signal, thereby steering a beam of the transmission signal. The reactance control elements may be incorporated into a microstrip within the transmission lines. 1. A radiating structure comprising:a plurality of transmission lines, wherein each of the transmission lines comprises a plurality of slots;at least one reactance control element, which is coupled to at least one of the transmission lines, configured to change a reactance of at least one of the transmission lines and controlled by at least one reactance control signal;at least one resonant coupler configured to isolate at least one transmission signal from the at least one reactance control signal; anda plurality of unit cell elements configured to radiate the at least one transmission signal, wherein the unit cell elements are mounted proximate the slots of the transmission lines such that each of the slots is associated with one of the unit cell elements.2. The radiating structure of claim 1 , further comprising at least one impedance matching element configured to match an impedance of at least two of the transmission lines.3. The radiating structure of claim 1 , wherein the transmission lines are structured to comprise a plurality of levels.4. The radiating structure of claim 1 , wherein each of the unit cell elements comprises a metamaterial (MTM).5. The radiating structure of claim 1 , wherein each ...

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Номер записи: 50
08-07-2021 дата публикации

Pneumatically Driven Steerable Antenna Array

Номер: US20210210849A1
Автор: Rogers John E.
Принадлежит:

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 ...

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Номер записи: 51
08-07-2021 дата публикации

PHASE DIVERSITY INPUT FOR AN ARRAY OF TRAVELING-WAVE ANTENNAS

Номер: US20210210866A1
Автор: Boyarsky Michael, FAGHI IMANI Seyedmohammadreza, Smith David R.
Принадлежит:

According to various embodiments, systems and methods for suppressing grating lobes in a traveling-wave antenna system are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas. The apparatus also can include a phase diversity feed coupled to the traveling-wave antenna array. The phase diversity feed can be configured to provide phase diverse input to two or more of the plurality of adjacent traveling-wave antennas. 1. An apparatus comprising:a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas; anda phase diversity feed coupled to the traveling-wave antenna array and configured to provide phase diverse input to two or more of the plurality of adjacent traveling-wave antennas.2. The apparatus of claim 1 , wherein the plurality of adjacent traveling-wave antennas comprise a plurality of adjacent metamaterial radiating waveguide antennas.3. The apparatus of claim 1 , wherein the plurality of adjacent traveling-wave antennas comprise a plurality of adjacent leaky wave antennas.4. The apparatus of claim 1 , wherein the phase diversity feed comprises a feed waveguide configured to provide input to the plurality of adjacent traveling-wave antennas including the phase diverse input to the two or more of the plurality of adjacent traveling-wave antennas.5. The apparatus of claim 4 , wherein the feed waveguide is coupled to each of the plurality of adjacent traveling-wave antennas through a corresponding aperture and is configured to provide the input to the plurality of adjacent traveling-wave antennas through the corresponding aperture coupling the feed waveguide to each of the plurality of adjacent traveling-wave antennas.6. The apparatus of claim 1 , wherein the phase diversity feed comprises an array of passive phase shifters configured to provide input to the plurality of adjacent traveling-wave antennas including the phase diverse input to the two or more of ...

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Номер записи: 52
29-06-2017 дата публикации

Methods and Apparatus for Backside Integrated Circuit High Frequency Signal Radiation, Reception and Interconnects

Номер: US20170187094A1
Автор: Cook Benjamin Stassen, Sankaran Swaminathan
Принадлежит:

In an example arrangement an apparatus includes a semiconductor substrate having a front side surface including circuitry and a backside surface opposing the front side surface; a plurality of metal conductors formed over a front side surface of the semiconductor substrate; at least one cavity opening etched in a backside surface of the semiconductor substrate; and a radiator formed in a portion of the metal conductors and configured to radiate signals through the cavity opening in the backside surface. Methods and additional apparatus arrangements are also disclosed. 1. An apparatus , comprising:a semiconductor substrate having: a front side surface, including circuitry in a first level; and a backside surface opposing the front side surface;a metal conductor stack formed in a second level that is overlying the front side surface, wherein the second level includes multiple sublevels thereof;at least one cavity opening etched in the backside surface, wherein at least the second level is overlying the cavity opening;a structure, formed in a portion of the metal conductor stack, to radiate signals through the cavity opening in the backside surface, wherein the structure is formed in at least one of the sublevels of the second level; anda reflective surface, overlying and adjacent the second level, and spaced from the structure by at least one of the sublevels of the second level, and configured to reflect the radiated signals towards the cavity opening in the backside surface.2. (canceled)3. (canceled)4. The apparatus of claim 1 , wherein the reflective surface is an electrical reflector.5. The apparatus of claim 4 , wherein the reflective surface is configured to reflect the radiated signals with a phase shift of 180 degrees.6. The apparatus of claim 4 , wherein the reflective surface is spaced from the structure by a distance that is a fraction of the wavelength of the radiated signals between 1/100 and ½ of the wavelength.7. The apparatus of claim 1 , wherein the ...

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Номер записи: 53
04-06-2020 дата публикации

POSITIONING SOLUTION

Номер: US20200178034A1
Автор: Damm Rickard, HUBER Michael
Принадлежит:

Disclosed is a communication system for positioning of a terminal device. The communication system includes at least three leaky coaxial cables, a server device for determining a position of a terminal device in response to a receipt of data from the terminal device through at least two coaxial cables. The server device is arranged to determine an indicator value representing the at least two coaxial cables through which the data from the terminal device is received and to compare the indicator value to change patterns stored in data storage accessible to the server device, and in response to a match in a comparison to generate data representing the position of the terminal device. Also disclosed is a method for positioning the terminal device. 1. A communication system for positioning of a terminal device , the communication system comprising:at least three leaky coaxial cables, each having an inner conductor, an outer conductor and isolation layer between the inner conductor and the outer conductor, wherein the outer conductor comprises at least one slot, the slots arranged consecutive to each other along longitudinal axes of the leaky coaxial cables to leak radio frequency signals,a server device for determining a position of a terminal device in response to a receipt of data from the terminal device through at least two coaxial cables, the server device is arranged to determine an indicator value representing the at least two coaxial cables through which the data from the terminal device is received and to compare the indicator value to change patterns stored in data storage accessible to the server device, and in response to a match in a comparison to generate data representing the position of the terminal device.2. A method of positioning of a terminal device communicating with a communication system , the communication system comprising at least three leaky coaxial cables , each having an inner conductor , an outer conductor and isolation layer between the ...

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Номер записи: 54
15-07-2021 дата публикации

MICROSTRIP COLLINEAR ARRAY

Номер: US20210218147A1
Автор: LIAO Yen-Lin, LIU I-Ru
Принадлежит: ACCTON TECHNOLOGY CORPORATION

A microstrip collinear array includes a bearing member, two first antenna assemblies, two second antenna assemblies, a first connecting line, and a second connecting line. The two first antenna assemblies are juxtaposed on the bearing member. Each of the first antenna assemblies includes several first planar antennas. The two second antenna assemblies are juxtaposed on the bearing member and are respectively and correspondingly located on an opposite side of the two first antenna assemblies. Each of the second antenna assemblies includes several second planar antennas. The first connecting line and the second connecting line are disposed on the bearing member. The second connecting line is located on an opposite side of the first connecting line and is electrically connected to the first connecting line. The first connecting line is electrically connected to the first antenna assemblies. The second connecting line is electrically connected to the second antenna assemblies. 1. A microstrip collinear array , comprising:a bearing member having a first end and a second end opposite to the first end in a first axial direction;two first antenna assemblies juxtaposed on the bearing member, wherein each of the first antenna assemblies comprises a plurality of first planar antennas, a plurality of first transmission lines, and a first extending line; the first planar antennas of each of the first antenna assemblies are arranged at intervals in the first axial direction; two ends of each of the first transmission lines of each of the first antenna assemblies are respectively connected to the two adjacent first planar antennas; the first extending line of each of the first antenna assemblies is connected to one of the first planar antennas closest to the first end;two second antenna assemblies juxtaposed on the bearing member and respectively located on a surface of the bearing member opposite to the first antenna assemblies, wherein each of the second antenna assemblies ...

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Номер записи: 55
06-07-2017 дата публикации

APPARATUS TO CREATE UNIFORM ELECTRIC-FIELD AND MAGNETIC-FIELD DISTRIBUTION AS METAMATERIAL ZEROTH-ORDER RESONANCE IN WAVEGUIDE AND CAVITY AND LEAKY-WAVE WAVEGUIDE ANTENNA FOR HIGH DIRECTIVITY RADIATION

Номер: US20170194708A1
Автор: KAHNG SUNG TEK
Принадлежит: INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION

An apparatus to create uniform electric and magnetic-field distribution as zeroth-order resonance in a waveguide and a cavity according to an embodiment of the present invention includes a rectangular waveguide with a rectangular-shaped cross section comprising a cavity in the inside, and a conductive helical wire inserted into the cavity of the waveguide, wherein the main body of the conductive helical wire does not contact the inner surfaces of the waveguide at a predetermined gap, and both ends of the conductive helical wire are short-circuited to the inner surface of the waveguide, so as to create a uniform electric field and magnetic field throughout the entire waveguide. 1. An apparatus to create uniform electric and magnetic-field distribution as zeroth-order resonance in a waveguide and a cavity , comprising:a rectangular waveguide with a rectangular-shaped cross section comprising a cavity in the inside; anda conductive helical wire inserted into the cavity of the waveguide,wherein the main body of the conductive helical wire does not contact the inner surfaces of the waveguide at a predetermined gap, and both ends of the conductive helical wire are short-circuited to the inner surface of the waveguide,wherein the number of the turns and spacing between the pitches of the conductive helical wire are predetermined.2. The apparatus of claim 1 , wherein the target zeroth-order resonance frequency of the waveguide is set to be equal to or less than the cut-off frequency of the waveguide in order to challenge the size-reduction for longer-waves in the limited space of the waveguide.3. The apparatus of claim 2 , wherein the conductive helical wire is arranged in the longitudinal direction of the waveguide and arranged to rotate along the inner surfaces of the waveguide.4. The apparatus of claim 1 , wherein the conductive helical wire comprises a metal helical wire.5. The apparatus of claim 1 , wherein the conductive helical wire has a repeated structure as long ...

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Номер записи: 56
06-07-2017 дата публикации

Miniature wideband antenna for 5G mobile networks

Номер: US20170194720A1
Автор: Duan Zhaoyun, Gong Yubin, LI Xinyi, WANG FEI, WANG Xin, Wang Zhanliang, Zhou Qing
Принадлежит:

The present invention provides a miniature wideband antenna for 5G, which includes a dielectric substrate, a coplanar waveguide feed structure on a front of the dielectric substrate, a main radiator, a second and third radiators and a first radiator on a back of the dielectric substrate. The antenna is small in size with operation band of 3 GHz-30 GHz which covers the various 5G frequency band and covers the current wireless modes of Wi-MAX, W-LAN, UWB and so on. The antenna guarantees future compatibility for various complicated communication modes and has good perspectives for many applications. Based on the antenna, the double-unit and four-unit MIMO antenna adopts orthogonal polarization and metamaterial unit. Thus, high unit separation is achieved without increase on the size of the antenna unit. The present invention has wide applications in small mobile device such as cell phone and laptop. 1. A miniature wideband antenna for 5G (5generation mobile networks) , comprising: a dielectric substrate , a coplanar waveguide feed structure on a front of the dielectric substrate , a main radiator , a second radiator , a third radiator and a first radiator on a back of the dielectric substrate , whereinthe coplanar waveguide feed structure comprises a feed line and a metal ground;the metal ground is a wrap-around structure with a pentagon in a middle;the main radiator is a deformed rectangle monopole antenna, a bottom of which is an inverted trapezoid connected to the feed line; a top of the monopole antenna is a rectangle structure with ladder-shaped grooves;the first radiator is an isosceles trapezoid set on the back of the dielectric substrate; a short side of the isosceles trapezoid is near and parallel to a bottom of the metal ground;the second and the third radiators are parallelograms placed symmetrically beside two sides of the main radiator; bottoms of the second and the third radiators are near and parallel to the metal ground; at an obtuse angle of a bottom ...

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Номер записи: 57
14-07-2016 дата публикации

PRINTED CIRCUIT BOARD FOR ANTENNA SYSTEM

Номер: US20160204514A1
Автор: Miraftab Vahid, REPETA Morris, Zhai Wenyao
Принадлежит: Huawei Technologies Co., Ltd.

A Printed Circuit Board (PCB) comprising various integral components and method of manufacture are provided. The PCB includes a Substrate Integrated Waveguide (SIW), integrated waveguide antennas disposed above the SIW, apertures formed in SIW for coupling with the waveguide antennas, a transmission line routed above the SIW and using the SIW as a ground plane thereof, and further antennas, integrated into the PCB and disposed above and coupled to the transmission line. The SIW and the transmission line may be branched structures for feeding corresponding arrays of waveguide antennas and further antennas. Coplanar waveguides may also be integrated into the PCB and coupled to the SIW and the transmission line via integral impedance matching structures. PCB feature re-use and component interleaving may provide for a desirable and manufacturable PCB structure. 1. A Printed Circuit Board (PCB) comprising:a Substrate Integrated Waveguide (SIW) structure having a first conductive boundary disposed within a first conductive layer of the PCB, a second conductive boundary disposed within a second conductive layer of the PCB, and a plurality of first vias coupling the first conductive boundary to the second conductive boundary;at least one waveguide antenna disposed at least partially within further conductive layers of the PCB, the further conductive layers including a third conductive layer and a fourth conductive layer, wherein the second conductive layer is disposed between the first conductive layer and the third conductive layer, and wherein the third conductive layer is disposed between the second conductive layer and the fourth conductive layer;at least one aperture formed in the second conductive boundary of the SIW structure and aligned with the at least one waveguide antenna;a conductive trace of a transmission line, the conductive trace disposed within the third conductive layer, at least a portion of the conductive trace aligned overtop of the second conductive ...

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Номер записи: 58
20-06-2019 дата публикации

GUARD TERMINAL APPARATUS, ACCESS POINT, RADIO COMMUNICATION APPARATUS, AND TRANSMISSION METHOD

Номер: US20190191463A1
Автор: Hamaguchi Yasuhiro, MIYAMOTO Shinichi, Namba Hideo, Tomeba Hiromichi
Принадлежит:

In a case that interference is received from the surrounding wireless communication apparatuses, the interference signals are reduced thereby improving a communication efficiency. A guard terminal apparatus is used with an access point wirelessly communicating with a wireless terminal apparatus, outputs a signal to perform medium reservation, and includes a leaky coaxial cable configured to wirelessly transmit a signal for performing the medium reservation. The leaky coaxial cable is arranged in a part of a coverage of the access point. The access point or another guard terminal apparatus used with the access point transmits a signal to shorten a reserved period which is based on a transmitted medium reservation signal. 110-. (canceled)11. A guard terminal apparatus to be used with an access point that wirelessly communicates with a wireless terminal apparatus , whereinthe guard terminal apparatus transmits a signal to shorten a reserved period based on a medium reservation signal transmitted by the access point or another guard terminal apparatus to be used with the access point.12. The guard terminal apparatus according to claim 11 , the guard terminal apparatus comprising:a controller configured to output a signal for performing a medium reservation; anda leaky coaxial cable configured to wirelessly transmit the signal for performing the medium reservation.13. The guard terminal apparatus according to wherein the leaky coaxial cable is arranged in a part of a coverage of the access point.14. A guard terminal apparatus to be used with an access point that wirelessly communicates with a wireless terminal apparatus claim 12 , whereinthe guard terminal transmits a medium reservation signal in at least one frequency channel adjacent to a frequency channel used by the access point.15. The guard terminal apparatus to according to claim 14 , the guard terminal apparatus comprising:a controller configured to output a signal for performing a medium reservation; anda leaky ...

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Номер записи: 59
22-07-2021 дата публикации

PRINTED CIRCUIT BOARD FOR BASE STATION ANTENNA

Номер: US20210227684A1
Автор: Liu Nengbin, Shao Shuguang, Wang Xiaotuo, Wen Hangsheng, Zimmerman Martin L.
Принадлежит:

Printed circuit boards for a base station antenna include a substrate layer, and a first conductive trace and a second conductive trace which are printed on the substrate layer and cross each other. The first conductive trace has two trace sections separated by the second conductive trace. Adjacent ends of the two trace sections separated by the second conductive trace are connected electrically by a jumper. The jumper has an electrical conductor, is isolated electrically from the second conductive trace and is fixed on the printed circuit board. The electrical conductor and the two trace sections are connected electrically at adjacent ends. The printed circuit board allows flexible wiring of the conductive traces on the printed circuit board. 1. A printed circuit board for a base station antenna including a substrate layer , a first conductive trace and a second conductive trace which are printed on the substrate layer and cross each other , wherein the first conductive trace has two trace sections separated by the second conductive trace , wherein adjacent ends of the two trace sections separated by the second conductive trace are connected electrically by a jumper , wherein the jumper has an electrical conductor , is electrically isolated from the second conductive trace and is fixed on the printed circuit board , and wherein the electrical conductor is connected electrically with the two trace sections at the adjacent ends.2. The printed circuit board for a base station antenna of claim 1 , wherein the jumper is a separate component and is fixed on the printed circuit board by soldering claim 1 , and wherein the electrical conductor and the two trace sections are connected electrically at the adjacent ends by soldering.3. The printed circuit board for a base station antenna of claim 2 , wherein the jumper has a plug element inserted into a hole of the printed circuit board.4. The printed circuit board for a base station antenna of claim 3 , wherein the jumper is ...

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Номер записи: 60
09-10-2014 дата публикации

FULL-SPACE SCANNING END-SWITCHED CRLH LEAKY-WAVE ANTENNA

Номер: US20140300520A1
Автор: Abielmona Samer, CALOZ Christophe, Nguyen Van-Hoang
Принадлежит: POLYVALOR, LIMITED PARTNERSHIP

The present relates to a leaky-wave antenna unit. The leaky wave antenna unit comprises a leaky wave antenna having two ports and a switching unit. The switching unit comprises an input, two throws and an actuator. The input of the switching unit receives a signal to be radiated by the leaky wave antenna. Each of the throw is connected to a different port of the leaky wave antenna, while the actuator switches the input between the two throws. 1. A leaky-wave antenna unit comprising:a leaky wave antenna having two ports; anda switching unit, the switching unit comprising an input, two throws and an actuator, the input receiving a signal to be radiated by the leaky wave antenna, each of the throw being connected to a different port of the leaky wave antenna, and the actuator switching the input between the two throws.2. The leaky-wave antenna unit of claim 1 , wherein the switching unit further comprises at least one internal load.3. The leaky-wave antenna unit of claim 1 , wherein each port of the leaky-wave antenna provides half-space scanning of the leaky wave antenna.4. The leaky-wave antenna unit of claim 3 , wherein the switching unit switches the input between the two throws claim 3 , thereby achieving full-space scanning by the leaky wave antenna.5. The leaky-wave antenna unit of wherein the leaky-wave antenna is a composite right/left-handed leaky-wave antenna.6. The leaky-wave antenna unit of claim 1 , further comprising a power combining module claim 1 , the power combining module being disposed between the leaky wave antenna and the switching unit so as to recycle non-radiated signal at an output port of the leaky-wave antenna with the signal to be radiated.7. The leaky wave antenna unit of claim 6 , wherein the power combining module is a rat race coupler.8. The leaky wave antenna unit of claim 1 , wherein the switching unit is an internally-matched single pole double throw switch.9. Use of the leaky wave antenna unit of claim 1 , in at least one of the ...

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Номер записи: 61
05-08-2021 дата публикации

Distributed Control System for Beam Steering Applications

Номер: US20210242586A1
Автор: Desclos Laurent, Singh Abhishek
Принадлежит:

A technique is described where the switch and/or tunable control circuit for use with an active multi-mode antenna is positioned remote from the antenna structure itself for integration into host communication systems. Electrical delay and impedance characteristics are compensated for in the design and configuration of transmission lines or parasitic elements as the active multi-mode antenna structure is positioned in optimal locations such that significant electrical delay is introduced between the RF front-end circuit and multi-mode antenna. This technique can be implemented in designs where it is convenient to locate switches in a front-end module (FEM) and the FEM is located in vicinity to the transceiver. 118-. (canceled)19. An antenna system comprising:a multi-mode antenna configurable in a plurality of modes, each of the plurality of modes having a distinct radiation pattern, the multi-mode antenna comprising:a radiating element comprising a vertical portion and a horizontal portion, the vertical portion disposed on a ground plane, the horizontal portion extending from the vertical portion such that an antenna volume is defined between the ground plane and the horizontal portion of the radiating element; anda parasitic element positioned outside of the antenna volume;wherein the antenna system further comprises:a conductor that is spaced apart from the ground plane, the conductor coupled between the parasitic element and an active tuning circuit configured to vary a reactance of the parasitic element to configure the multi-mode antenna in one of the plurality of modes.20. The antenna system of claim 19 , further comprising:a transmission line coupled between the radiating element and the active tuning circuit.21. The antenna system of claim 20 , wherein the transmission line comprises a coaxial transmission line claim 20 , a microstrip transmission line claim 20 , a stripline transmission line claim 20 , a co-planar waveguide claim 20 , or a parallel wire ...

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Номер записи: 62
02-07-2020 дата публикации

Conformal planar dipole antenna

Номер: US20200212582A1
Автор: John E. Rogers
Принадлежит: Boeing Co

Systems and methods for a conformal planar dipole antenna is described herein. In one example, the antenna can include a first dipole layer, a second dipole layer, a microstrip layer, and a ground plane. The first dipole layer can include a first antenna element. The second dipole layer can include a second antenna element. The microstrip layer can include a microstrip. The first antenna element, the second antenna element, and the microstrip can be electrically coupled to each other.

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Номер записи: 63
09-08-2018 дата публикации

COMMUNICATION CABLES WITH ILLUMINATION

Номер: US20180224113A1
Автор: Wenger Daniel
Принадлежит:

Methods and systems are provided for enhanced communication cables which may be configured for supporting at least two separate functions, including distribution of data signals and at least one other different function. An example enhanced cable may include an arrangement along at least a section of the cable, with that arrangement configured for supporting the at least one other different function. The other different function may include illumination. The cable may include or have a jacket configured to accommodate the arrangement, with the jacket being transparent or including transparent areas or openings corresponding to at least regions of the arrangement. The arrangement may include an illumination arrangement. The cable may include light guiding material configured for use in conjunction with the illumination arrangement. The cable may have leaky feeder structures, for use in support of the distribution of data signals function. 116-. (canceled)17. A system comprising:a cable configured for supporting at least two separate functions, said two separate functions comprising distribution of data signals and at least one other different function; andwherein said cable comprises an arrangement along at least a section of said cable, said arrangement configured for supporting said at least one other different function.18. The system of claim 17 , wherein said at least one other different function comprises illumination.19. The system of claim 17 , wherein said cable comprises a leaky feeder structure claim 17 , for use in said distribution of data signals.20. The system of claim 17 , wherein said cable comprises one or more conductors claim 17 , and at least one conductor provides power to said arrangement.21. The system of claim 20 , wherein said one or more conductors comprise metal conductors22. The system of claim 17 , wherein said cable comprises a jacket configured to accommodate said arrangement.23. The system of claim 22 , wherein said jacket is ...

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Номер записи: 64
18-08-2016 дата публикации

Array antenna

Номер: US20160240934A1
Автор: Junji Sato, Ryosuke Shiozaki
Принадлежит: Panasonic Corp

An array antenna includes: a feed line provided on a first surface of a substrate; a plurality of antenna elements that are provided on the first surface at predetermined gap along the feed line and that are electromagnetically coupled with the feed line; and a conductor plate that is provided on a second surface of the substrate different from the first surface and that is ground for the feed line and the plurality of antenna elements, the plurality of antenna elements including a first antenna element having a shape that resonates at a first frequency and a second antenna element having a shape that resonates at a second frequency different from the first frequency.

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Номер записи: 65
17-08-2017 дата публикации

Eliminating reciprocity constraints in radiating and scattering systems with spatio-temporal modulation

Номер: US20170237175A1
Автор: Andrea Alu, Jason Christopher Soric, Yakir Hadad
Принадлежит: University of Texas System

A non-reciprocal device using a space-time modulation scheme. By applying the space-time modulation scheme, reciprocity in radiation and scattering scenarios is prevented. Such a scheme utilizes a linear system with simple, compact and inexpensive electronic components compared to the current use of bulky duplexers and non-reciprocal magnet based phase shifters to provide non-reciprocity. One such linear system involves traveling-wave antennas loaded with voltage dependent capacitors that are modulated in space and time thereby allowing the antenna to transmit with high directivity in a certain direction and not receive from that direction. Another linear system involves a resonant metasurface characterized by transverse spatiotemporal gradients, where the spatiotemporal gradients include periodically modulated impedances thereby causing a non-reciprocal transmission response. In this manner, a signal that propagates and impinges on the surface at a given direction will be fully transmitted while a signal propagating from the complementary direction will be fully reflected.

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Номер записи: 66
23-08-2018 дата публикации

27-28.5 GHz Ka BAND PHASED ARRAY FAN BEAM ANTENNAS AND METHODS

Номер: US20180241135A1
Автор: Frank Patrick Carl, Furlan Vladimir
Принадлежит:

The disclosed 20 dBi KSF300. A high gain 5th generation mobile network or wireless system (5G) technology fan beam antenna array offers a wide 3 dB beamwidth for wide angular coverage in azimuth with most of the energy focused within 44° of the main beam. Since propagation losses at Ka band are 20× more than at 6 GHz, the beamwidth of the antenna is reduced when the antenna gain increases. To alleviate this problem, the fan-beam type antenna can be useful to provide simultaneously high gain and wide azimuth coverage. 1. A 27.5-28.5 GHz Ka band phased array fan beam antenna comprising:a substrate;a first antenna patch connected to a second antenna patch by a first micro-strip feed line to form a first antenna patch pair;a third antenna patch connected to a fourth antenna patch by a second micro-strip feed line to form a second antenna patch pair;a fifth antenna patch connected to a sixth antenna patch by a third micro-strip feed line to form a third antenna patch pair;a seventh antenna patch connected to an eighth antenna patch by a fourth micro-strip feed line to form a fourth antenna patch pair; andan output port,wherein the first antenna patch pair is connected to the second antenna patch to form a first antenna patch quad via a first micro-strip quad connector and the third antenna patch pair is connected to the fourth antenna patch pair to form a second antenna patch quad via a second micro-strip quad connector, and further wherein the first micro-strip quad connector and the second micro-strip quad connector are connected to the output port.2. The 27.5-28.5 GHz Ka band phased array fan beam antenna of further comprising:a ninth antenna patch connected to a tenth antenna patch by a fifth micro-strip feed line to form a fifth antenna patch pair;an eleventh antenna patch connected to a twelfth antenna patch by a sixth micro-strip feed line to form a sixth antenna patch pair;a thirteenth antenna patch connected to a fourteenth antenna patch by a seventh micro-strip ...

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Номер записи: 67
23-08-2018 дата публикации

IN-VEHICLE WIRELESS COMMUNICATION DEVICE

Номер: US20180241420A1
Автор: Hoshihara Yasunori, Nakano Hisao, NAKATSUKASA Masahiro
Принадлежит: Mitsubishi Electric Corporation

A shield box unit installed inside a vehicle and storing a mobile wireless terminal blocks external radio waves. 1. An in-vehicle wireless communication device comprising:a shield box to store a mobile wireless terminal and block an external radio wave, the shield box installed inside a vehicle;at least one first antenna installed inside the shield box and connected to a wireless communication installed outside the shield box; andat least one second antenna installed inside the shield box and connected to an external antenna installed outside the vehicle.2. The in-vehicle wireless communication device according to claim 1 ,wherein at least one of either the first antenna or the second antenna is arranged in close proximity to a casing of the mobile wireless terminal stored in the shield box.3. The in-vehicle wireless communication device according to claim 1 ,wherein the at least one first antenna includes a plurality of first antennas, and the at least one second antenna includes a plurality of second antennas, andwherein at least one of either the first antennas or the second antennas is arranged separately it a plurality of positions inside the shield box.4. The in-vehicle wireless communication device according to claim 1 ,wherein the second antenna and the external antenna are connected via a filter to block passage of a radio wave in a wireless frequency band to be transmitted and received by the first antenna.5. The in-vehicle wireless communication device according to claim 1 ,wherein the first antenna and the wireless communication are connected via a leaky coaxial cable to leak a radio wave in a wireless frequency band transmitted and received by the first antenna.6. The in-vehicle wireless communication device according to claim 1 ,wherein at least part of the shield box is transparent or translucent to light in a visible light wavelength region.7. The in-vehicle wireless communication device according to claim 1 ,wherein at least part of the shield box ...

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Номер записи: 68
24-08-2017 дата публикации

ANTENNA SYSTEM FACILITATING REDUCTION OF INTERFERING SIGNALS

Номер: US20170244172A1
Автор: Hyde Roderick A., JR. Lowell L., Kare Jordin T., Wood
Принадлежит: ELWHA LLC

Described embodiments include an antenna system and method. The antenna system includes a surface scattering antenna that has an electromagnetic waveguide structure and a plurality of electromagnetic wave scattering elements. The plurality of electromagnetic wave scattering elements are distributed along the waveguide structure, have a respective activatable electromagnetic response to a propagating electromagnetic wave, and produce a controllable radiation pattern. A gain definition circuit defines a radiation pattern configured to acquire a possible interfering signal. The defined antenna radiation pattern has a field of view covering at least a portion of an undesired field of view of an associated antenna. An antenna controller establishes the defined radiation pattern in the surface scattering antenna by activating the respective electromagnetic response of selected electromagnetic wave scattering elements. A correction circuit reduces an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna. 1. An antenna system comprising: an electromagnetic waveguide structure;', 'a plurality of electromagnetic wave scattering elements distributed along the waveguide structure and operable in combination to produce a controllable radiation pattern;', 'a gain definition circuit configured to define a radiation pattern configured to receive a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having a field of view that includes a desired field of view and an undesired field of view, and the defined antenna radiation pattern having a field of view covering at least a portion of the undesired field of view of the associated antenna, wherein the undesired field of view includes the possible interfering signal, and the desired field of view includes a target signal; and', 'a correction circuit configured to reduce an influence of the received ...

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Номер записи: 69
09-09-2021 дата публикации

RADAR SENSOR

Номер: US20210278499A1
Автор: ALPHONES Arokiaswami, CHANDRASEKARAN Karthik Thothathri, KARIM Muhammad Faeyz, THOMAS Ashita Priya
Принадлежит: NANYANG TECHNOLOGICAL UNIVERSITY

Example embodiments describe a radar sensor, whereby the radar sensor comprises a pair of continuous wave (CW) radar transceivers that each has a leaky wave antenna that are provided adjacent to each other. Each CW radar transceiver comprises a microwave frequency transmission circuit configured to transmit and receive signals reflected off a nearby object. The transmitted and received signals are then processed by the radar sensor to determine a relative displacement between the detected object and the radar sensor. This determined relative displacement may then be used with machine learning techniques to identify dynamic gestures made within the radar sensor's range of detection. 3. The radar sensor according to wherein gradient index (GRIN) substrates are provided at coupling regions of the first and second directional couplers.4. The radar sensor according to claim 1 , wherein the divider circuit comprises:a power divider configured to divide the output signal from the VCO equally into the reference signal and a divided output signal, and to provide the reference signal to one of the input ports of the six-port interferometer;a rat race coupler configured to receive the divided output signal at a sum port of the rat race coupler and to generate the transmission signal at a first port of the rat race coupler; andthe rat race coupler is further configured to receive, from the antenna, the backscattered signal at the first port of the rat race coupler and to produce the backscattered signal at a difference port of the rat race coupler, whereby the difference port is coupled to another one of the input ports of the six-port interferometer.5. The radar sensor according to claim 4 , wherein a central coupling region of the rat race coupler comprises regions having varying values of permittivity.6. The radar sensor according to wherein the double periodic CRLH SIW leaky wave antenna of the first CW radar transceiver is positioned back-to-back with the double periodic ...

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Номер записи: 70
01-09-2016 дата публикации

HOLLOW CORE COAXIAL CABLES AND METHODS OF MAKING THE SAME

Номер: US20160254583A1
Автор: Heiks Noel, Sherrer David W.
Принадлежит: NUVOTRONICS, LLC

Disclosed and claimed herein is a hollow core coaxial cable, having a dielectric capillary with an inside wall and an outside wall, an inner conductive layer on the inside wall of the hollow core coaxial cable and an outer conductive layer on the outside wall of the hollow core coaxial cable, the conductive layers may be patterned. Further disclosed is a method of making the hollow core coaxial cable. Further disclosed are holey fiber coaxial cables, having a holey fiber capillary having an inside wall and an outside wall, an inner conductive layer on the inside wall of the hollow core coaxial cable and an outer conductive layer on the outside wall of the hollow core coaxial cable, the conductive layers may be patterned. 120-. (canceled)21. A hollow core coaxial cable , comprising:a. a dielectric capillary having an inside wall and an outside wall providing a hollow core extending along a central axis thereof, the capillary having an inner dimension of 700 μm or less and an outer dimension of 850 μm or less;b. an inner conductive layer disposed on the inside wall of the capillary; and 'whereby the materials and dimensions of the dielectric capillary, inner conductive layer, and outer conductive layer cooperate to provide a flexible, hollow core, coaxial cable.', 'c. an outer conductive layer disposed on the outside wall of the capillary, the dielectric capillary, inner conductive layer, and outer conductive layer disposed coaxial to one another;'}22. The hollow core coaxial cable of claim 21 , wherein the inner conductive layer has a thickness of 20 μm or less.23. The hollow core coaxial cable of claim 21 , wherein the outer conductive layer has a thickness of 20 μm or less.24. The hollow core coaxial cable of claim 21 , wherein a selected portion of the inner conductive layer has been removed to form a pattern.25. The hollow core coaxial cable of claim 24 , wherein a selected portion of the outer conductive layer has been removed to form a pattern.26. The hollow ...

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Номер записи: 71
08-08-2019 дата публикации

Wide angle coverage antenna with parasitic elements

Номер: US20190245276A1
Автор: Mingjian LI, Shawn Shi
Принадлежит: Aptiv Technologies Ltd, Delphi Technologies LLC

An illustrative example antenna device includes a substrate, a transmission line supported on the substrate, and a plurality of conductive patches supported on the substrate. Each conductive patch has a first end coupled to the transmission line and a second end coupled to ground. The plurality of conductive patches are arranged in sets including two of the conductive patches facing each other on opposite sides of the transmission line.

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Номер записи: 72
27-11-2014 дата публикации

POLARIZATION-DIVERSE ANTENNAS AND SYSTEMS

Номер: US20140347234A1
Автор: Abielmona Samer, CALOZ Christophe, Nguyen Van-Hoang, Yang Ning
Принадлежит: POLYVALOR, LIMITED PARTNERSHIP

Antenna units, antenna systems and polarizing systems provide polarization diversity to leaky-wave antennas. An antenna unit comprises a rat-race coupler having a summation port, a difference port and two output ports. Each one of a pair of composite right/left-handed (CRLH) leaky-wave antennas (LWA) is connected at one end to a respective one of the output ports of the rat-race coupler. An inductive stub is implemented between the CRLH LWAs for connecting the CRLH LWAs to a grounded via. Various polarizations are obtained by injecting a radio-frequency (RF) signal in the summation or difference port of the rat-race coupler, or in both ports. System variants include various devices and assemblies for injecting RF signals in the antenna unit. One such variant includes a polarizing system having a switched matrix for directing a signal according to various intended polarizations. 1. A leaky-wave antenna (LWA) system for providing polarization diversity , comprising:a rat-race coupler having a summation port, a difference port and two output ports;a pair of composite right/left-handed (CRLH) LWAs, each CRLH LWA being connected to a respective one of the output ports of the rat-race coupler; andan inductive stub implemented between the CRLH LWAs for connecting the CRLH LWAs to a grounded via.2. The leaky-wave antenna system of claim 1 , wherein:injecting a signal in the summation port generates in-phase longitudinal currents along the CRLH LWAs and out-of-phase transversal currents in the inductive stub; andinjecting a signal in the difference port generates out-of-phase longitudinal currents along the CRLH LWAs and in-phase transversal currents in the inductive stub.3. (canceled)4. (canceled)5. (canceled)6. The leaky-wave antenna system of claim 1 , comprising:a plurality of inductive stubs connecting both CRLH LWAs; anda plurality of inter-digital capacitors implemented along each CRLH LWA between each pair of inductive stubs.7. The leaky-wave antenna system of claim ...

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Номер записи: 73
30-09-2021 дата публикации

Multilayer substrate and wireless module mounted substrate

Номер: US20210306021A1
Автор: Shigeki Yamauchi
Принадлежит: Lapis Semiconductor Co Ltd

A multilayer substrate includes a first dielectric layer, a first conductive layer, and a conductor portion. The first dielectric layer has a first region. The first conductive layer is laminated on the first dielectric layer, excluding the first region. The conductor portion has one or more auxiliary conductors disposed at a distance from the first conductive layer, and one or more connecting conductors that connect said one or more auxiliary conductors to the first conductive layer.

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Номер записи: 74
06-09-2018 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING SIGNALS IN A TRANSPORTATION SYSTEM

Номер: US20180254800A1
Автор: Barnickel Donald J., BARZEGAR FARHAD, Bennett Robert, Gerszberg Irwin, Henry Paul Shala, III Thomas M., Willis
Принадлежит: AT&T Intellectual Property I, L.P.

Aspects of the subject disclosure may include, for example, a system for transmitting first electromagnetic waves that propagate on a surface of a component of a transit system, and receiving second electromagnetic waves that propagate on the surface of the component of the transit system. Other embodiments are disclosed. 1. A method , comprising:transmitting, by a first waveguide system, first guided electromagnetic waves along a physical component of a transportation system used by a vehicle of the transportation system, wherein the first guided electromagnetic waves are guided by the physical component of the transportation system; andreceiving, by the first waveguide system, second guided electromagnetic waves propagating along the physical component of the transportation system, wherein the second guided electromagnetic waves are guided by the physical component of the transportation system, wherein a second waveguide system transmits the second guided electromagnetic waves, and wherein the first guided electromagnetic waves and the second guided electromagnetic waves are configured to not substantially interfere with each other.2. The method of claim 1 , wherein the transportation system comprises a railway system to transport the vehicle.3. The method of claim 1 , wherein the physical component of the transportation system comprises a conductor that facilitates delivery of electrical energy to the vehicle of the transportation system.4. The method of claim 1 , wherein the physical component of the transportation system comprises a portion of a rail of a track for energizing the vehicle of the transportation system.5. The method of claim 1 , wherein the transmitting the first guided electromagnetic waves is via a communications interface claim 1 , and wherein the communications interface comprises an optical interface or a radio frequency interface.6. The method of claim 1 , wherein the first guided electromagnetic waves comprise first data claim 1 , and ...

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Номер записи: 75
04-12-2014 дата публикации

Radar device for behind windshield installations

Номер: US20140354462A1
Автор: Shawn Shi
Принадлежит: Delphi Technologies Inc

A ground vehicle radar system includes a windshield of the ground vehicle and a radar device installed behind the windshield. The windshield includes a metallization layer configured to inhibit propagation of infrared radiation through the windshield that also inhibits the propagation of radar signals. The metallization layer defines an opening in the metallization layer for radar signals emitted and detected by a radar device to pass through. An antenna of the radar device is installed behind the windshield and aligned with the opening. A lower portion of the antenna has a first field of view through the opening characterized as being directed horizontal toward a horizon forward of the vehicle. An upper portion of the antenna has a second field of view through the opening characterized as being directed downward toward an area of the ground forward of the vehicle.

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Номер записи: 76
13-08-2020 дата публикации

Lossy Antenna Arrays with Frequency-Independent Beamwidth

Номер: US20200259259A1
Автор: Carl Pfeiffer, George Kakas, Thomas Steffen
Принадлежит: US Air Force

An ultra wide band (UWB) antenna includes: (i) an array of antenna elements spaced from a central axis; and (ii) a network of lossy feedlines respectively communicatively coupled to the array of antenna elements. Each lossy feedline is periodically loaded with a resistance that is capacitively coupled to ground. Respective lengths of each lossy feedlines are selected to increase with an increase in distance from the central axis to achieve frequency independence of a radiated beamwidth from the UWB antenna.

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Номер записи: 77
16-12-2021 дата публикации

Integrated Leaky Feeder and Mesh Network System

Номер: US20210391653A1
Автор: BERG Jeremy Gerald Fernand
Принадлежит: Redpath Canada Limited

There is provided an integrated leaky feeder and mesh network system. The system includes a plurality of mesh nodes, each mesh node comprising a radio, at least one of the mesh nodes being powered by a power source. The system also includes a radiating coaxial cable connecting the plurality of mesh nodes to provide a leaky feeder signal between the nodes. 1. An integrated leaky feeder and mesh network system , comprising:a plurality of mesh nodes, each mesh node comprising a radio, at least one of the mesh nodes being powered by a power source; anda radiating coaxial cable connecting the plurality of mesh nodes to provide a leaky feeder signal between the nodes.2. The system of claim 1 , wherein the mesh nodes interface with the radiating coaxial cables via simulate air gaps normally experienced by the radios in the mesh nodes.3. The system of claim 1 , wherein at least one of the plurality of mesh nodes is powered by an incoming signal on a first radiating cable claim 1 , and powers a downstream node on a second radiating cable between adjacent nodes.4. The system of whereby the first mesh node is connected to at least one further mesh node downstream of the first mesh node.5. The system of claim 4 , further comprising a resistive element at one or more of: the end of a terminating one of the radiating coaxial cables claim 4 , or an open port in the system.6. The system of claim 4 , wherein at least one further mesh node comprises an additional power supply and/or external network interface.7. The system of claim 6 , wherein the additional power supply comprises a battery back-up.8. The system of claim 1 , wherein the power source is connected to a primary power supply.9. The system of claim 8 , wherein the primary power supply comprises a battery back-up.10. The system of claim 1 , wherein the radio comprises a network input port to enable a direct data connection at the mesh node.11. The system of claim 1 , wherein the plurality of mesh nodes comprises at least ...

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Номер записи: 78
12-10-2017 дата публикации

TAPERED MICROSTRIP LEAKY WAVE ANTENNA

Номер: US20170294716A1
Автор: Fraz Qaisar, Tanoli Shujat Ali Khan, Tarklani Ismail Khan
Принадлежит:

A tapered Microstrip Leaky Wave Antenna (MLWA) may include: a grounded metallic plane; conducting traces disposed on the grounded metallic plane, the conducting traces may include: a tapered leaky section extending in a first direction from a first end of the tapered leaky section to a second end of the tapered leaky section, the tapered leaky section including two rectangular slots; and a monopole disposed at the second end of the tapered leaky section and extending in a second direction, the second direction crossing the first direction, a dielectric layer disposed between the grounded metallic plane and the conducting traces; and three Yagi elements disposed adjacent to at the second end of the tapered leaky section in parallel with the monopole. 1. A tapered Microstrip Leaky Wave Antenna (MLWA) comprising:a grounded metallic plane;conducting traces disposed on the grounded metallic plane, the conducting traces comprising:a tapered leaky section extending in a first direction from a first end of the tapered leaky section to a second end of the tapered leaky section, the tapered leaky section comprising two rectangular slots; anda monopole disposed at the second end of the tapered leaky section and extending in a second direction, the second direction crossing the first direction,a dielectric layer disposed between the grounded metallic plane and the conducting traces; andthree Yagi elements disposed adjacent to at the second end of the tapered leaky section in parallel with the monopole.2. The MLWA of claim 1 , wherein the grounded metallic plane comprises two symmetric rectangular shape cut-outs overlapping at least a portion of the monopole and the Yagi elements.3. The MLWA of claim 1 , wherein the tapered leaky section has length of 62 mm.4. The MLWA of claim 1 , wherein a width of the tapered leaky section decreases from the first end having to the second end in a sequence of a first width a second width claim 1 , a third width claim 1 , and a fourth width ...

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Номер записи: 79
03-09-2020 дата публикации

Integrated filter system and antenna system

Номер: US20200280115A1
Автор: Gang Ju, Hui Cai, Jianzhao Yu, Pengbo Wang, Qi Zhou, Qilue FU, Yudong Liang
Принадлежит: Tongyu Communication Inc

An integrated filter system, including: a dielectric slab assembly; and a filter circuit arranged on the dielectric slab assembly, where the filter circuit includes a low-pass filter and a band-pass filter connected to one another in series. The present invention further discloses an antenna system. By means of the foregoing implementations, the filter system and the antenna system are integrated and miniaturized and have smaller weights, and the filter system and the antenna system have a simple structure and lower costs, and stable and reliable whole performance.

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Номер записи: 80
11-10-2018 дата публикации

NON-INVASIVE RADAR LEVEL GAUGE

Номер: US20180292519A1
Автор: Larsson Stig
Принадлежит:

A radar level gauging arrangement for performing radar level gauging in a tank having a tank wall which is impermeable to a product held in the tank and transmissive to radar signals, comprising an attachment device configured to be secured to a substantially flat portion of said tank wall, without penetration of the tank wall, and a radar level gauge including a directional antenna, the radar level gauge being mounted to the attachment device, such that, when said attachment device is secured against the tank wall, the directional antenna is positioned so as to enable transmission of radar signals through the tank wall. 1. A radar level gauging arrangement for performing radar level gauging in a tank having a tank wall which is impermeable to a product held in the tank and transmissive to radar signals , comprising:an attachment device configured to be secured to a substantially flat portion of said tank wall, without penetration of the tank wall; anda radar level gauge including a directional antenna, said radar level gauge being mounted to said attachment device,such that, when said attachment device is secured against the tank wall, the directional antenna is positioned so as to enable transmission of radar signals through the tank wall, thereby enabling determination of a filling level of a product in the tank.2. The arrangement according to claim 1 , wherein said attachment device comprises at least one suction cup configured to be secured to the tank wall by means of partial vacuum.3. The arrangement according to claim 2 , comprising at least two suction cups and a structure extending between the suction cups claim 2 , and wherein said radar level gauge is mounted to said structure claim 2 , in a position intermediate said suction cups.4. The arrangement according to claim 2 , wherein the at least one suction cup includes a connection terminal configured to be connected to an active source of sub-atmospheric pressure.5. The arrangement according to claim 4 , ...

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Номер записи: 81
17-09-2020 дата публикации

ANTENNA SYSTEM FOR VEHICLES

Номер: US20200295439A1
Автор: Jamaly Nima
Принадлежит:

A communication system and method for vehicles, particularly trains, are described with the vehicle having antenna sets. Each antenna set includes a plurality of antennas mounted onto a convex-shaped vehicle roof in which an axis of one antenna set is approximately perpendicular to an axis of another antenna set and in which the antenna sets are mounted below roof level of the convex-shaped vehicle roof A switching device is operable to switch between a first antenna configuration and a second antenna configuration based on a difference in measured signal power received at the antenna sets. The first antenna configuration is associated with a first stationary communication system of the plurality of stationary communication systems and a second antenna configuration is associated with a second stationary communication system of the plurality of stationary communication systems.

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Номер записи: 82
17-09-2020 дата публикации

FLAT-PLATE, LOW SIDELOBE, TWO-DIMENSIONAL, STEERABLE LEAKY-WAVE PLANAR ARRAY ANTENNA

Номер: US20200295466A1
Автор: Foo Senglee
Принадлежит:

A planar array antenna having a low-profile that provides a two dimensional, steerable, high-gain, low-sidelobe radiated RF beam patterns is presented. The antenna includes a metamaterial array of a plurality of first and second rows of unit cells, to propagate a radiation pattern along a first axis. The first rows operate in left-hand mode and the second rows operate in right-hand mode. Each of the unit cells include a volume of liquid crystal and a virtual ground connection capable of generating a potential difference for tuning the dielectric value of the liquid crystal. The antenna further includes a plurality of RF input ports disposed in a centralized location and a dual-channel center-feed network communicatively coupled to the plurality of paired first and second rows of unit cells and the plurality of RF input ports to form and control the direction of the radiated RF beam pattern.

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Номер записи: 83
05-11-2015 дата публикации

QUASI TEM DIELECTRIC TRAVELLING WAVE SCANNING ARRAY

Номер: US20150318621A1
Автор: APOSTOLOS John T., Gili Paul, McMahon Benjamin, Molen Brian, Mouyos William
Принадлежит:

A dielectric travelling wave antenna (DTWA) using a TEM mode transmission line and variable dielectric substrate. 1. An apparatus comprising:a transverse electromagnetic mode (TEM) transmission line;a dielectric structure disposed adjacent the TEM transmission line, the dielectric structure having an adjustable wave propagation constant; anda series of taps disposed along the TEM transmission line.2. The apparatus of wherein the dielectric structure further comprises multiple dielectric material layers spaced apart gaps.3. The apparatus of additionally comprising a control element arranged to adjust a size of the gaps claim 2 , and thereby affect a change in a beam angle claim 2 , where the control element may be a piezoelectric claim 2 , electroactive material or a mechanical position control.4. The apparatus of additionally comprising a delay elements connected to two or more of the taps claim 1 , wherein a delay introduced by respective delay elements changes with position along the transmission line.5. The apparatus of wherein a cumulative additional delay introduced by the the delay elements cancels a delay introduced by the transmission line.6. The apparatus of wherein the TEM line is one of a stripline claim 1 , microstrip claim 1 , parallel plate claim 1 , coplanar waveguide claim 1 , or slot line.7. The apparatus of wherein the taps are positioned in orthogonal pairs claim 1 , spaced apart by ¼λ.8. The apparatus of wherein a coupler at each tap couples the transmission line to a radiating element.9. The apparatus of wherein the taps are radiating elements.10. The apparatus of wherein the coupler is a transformer coupler with tapered widths.11. The apparatus of wherein the coupler is a TEM coupler.12. The apparatus of additionally comprising a second transmission line and second adjustable dielectric structure.13. The apparatus of additionally comprising a feed network for RHCP and LHCP.14. The apparatus of additionally comprising a feed network to control ...

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Номер записи: 84
26-10-2017 дата публикации

PLANAR ANTENNA

Номер: US20170310016A1
Автор: Tanabe Kosuke
Принадлежит: NEC Corporation

A planar antenna according to the present invention includes a plurality of antenna elements arranged thereon and characterized in that two opposite corner parts from among corners of an N-gon (N is an even number equal to or greater than four) are cut out. For example, a planar antenna has a shape in which two opposite corner parts from among four corner parts included in a rectangle () (N=4) are cut out. The planar antenna may be composed by combining a plurality of square antenna units on which a plurality of antenna elements are arranged. 1. A planar antenna including a plurality of antenna elements arranged thereon , wherein two opposite corner parts from among corners of an N-gon (N is an even number equal to or greater than four) are cut out.2. The planar antenna according to claim 1 , wherein the N-gon is a square.3. The planar antenna according to claim 2 , whereinthe planar antenna has a shape in which the two opposite corner parts from among four corner parts included in a first square are cut out in second squares, respectively, andthe second square has an area 1/36 or greater and 1/9 or less of an area of the first square.4. The planar antenna according to claim 2 , wherein the planar antenna is composed by combining a plurality of square antenna units on which the plurality of antenna elements are arranged.5. The planar antenna according to claim 4 , whereinthe planar antenna comprises a first unit composed of four of the antenna units arranged in a square and a second unit composed of three of the antenna units arranged in an L shape, andthe second unit is arranged in such a way that a recessed part of the second unit is joined with one of corner parts of the first unit.6. A planar antenna on which a plurality of antenna elements are arranged claim 4 , wherein a shape of the planar antenna is an octagon having six internal angles of 90 degrees and two internal angles of 270 degrees.7. The planar antenna according to claim 6 , whereinthe octagon is ...

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Номер записи: 85
03-11-2016 дата публикации

ANTENNA SYSTEM FOR VEHICLES

Номер: US20160322698A1
Автор: Jamaly Nima
Принадлежит:

A communication system and method for vehicles, particularly trains, are described with the vehicle having antenna sets. Each antenna set includes a plurality of antennas mounted onto a convex-shaped vehicle roof in which an axis of one antenna set is approximately perpendicular to an axis of another antenna set and in which the antenna sets are mounted below roof level of the convex-shaped vehicle roof. A switching device is operable to switch between a first antenna configuration and a second antenna configuration based on a difference in measured signal power received at the antenna sets. The first antenna configuration is associated with a first stationary communication system of the plurality of stationary communication systems and a second antenna configuration is associated with a second stationary communication system of the plurality of stationary communication systems. 1. A system for providing wireless communication between a vehicle and a plurality of wireless transceiver systems located along a vehicle path , the system comprising:a first antenna set and a second antenna set of the vehicle, wherein the first antenna set and the second antenna set can be configured in a first configuration and a second configuration; anda switch of the vehicle that is configured to switch between the first configuration and the second configuration based on a difference in a first signal power received at the first antenna set from the wireless transceiver systems and a second signal power received at the second antenna set from the wireless transceiver systems.2. The system according to claim 1 , wherein each of the first antenna set and the second antenna set includes a plurality of antennas.3. The system according to claim 2 , wherein the antennas are mounted to or below a roof of the vehicle.4. The system according to claim 1 , wherein an axis of the first antenna set is approximately perpendicular to an axis of the second antenna set.5. The system according to claim ...

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Номер записи: 86
03-11-2016 дата публикации

ARRANGEMENT COMPRISING A NETWORK NODE AND LEAKY CABLE

Номер: US20160323018A1
Автор: Medbo Jonas, Nilsson Andreas
Принадлежит: Telefonaktiebolaget LM Ericsson (publ)

The disclosure relates to an arrangement 100; 200 comprising a network node 3 and one or more leaky cables 2 connected at a first end 6 thereof to a respective antenna port of a first set of antenna ports of the network node 3. The network node 3 is configured to provide wireless communication for a communication device 4. The arrangement 10 comprises: a first multiplexing device 8; 10 connected to antenna ports of a second set of antenna ports of the network node 3; a second multiplexing device 9; 11 connected to the one or more leaky cables 2 at a second end 7 thereof; an interconnecting cable 5, interconnecting the first multiplexing device 8; 10 and the second multiplexing device 9; 11, wherein he first multiplexing device 8; 10 is arranged to frequency convert signals received from the second set of antenna ports and multiplex them into the interconnecting cable 5, and arranged to demultiplex signals received from the interconnecting cable 5 and to frequency convert signals for processing by the network node 3, and wherein the second multiplexing device 9; 1 is arranged to frequency convert signals received on the one or more leaky cables 21 and multiplex them into the interconnecting cable 5, and arranged to demultiplex signals received from the interconnecting cable 5 and to frequency convert signals for transmission on the one or more leaky cables 2. 1. An apparatus comprising a network node and one or more leaky cables connected at a first end thereof to a respective antenna port of a first set of antenna ports of the network node , the network node being configured to provide wireless communication for a communication device , the arrangement apparatus further comprising:a first multiplexing device connected to antenna ports of a second set of antenna ports of the network node,a second multiplexing device connected to the one or more leaky cables at a second end thereof,an interconnecting cable, interconnecting the first multiplexing device and the second ...

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Номер записи: 87
10-11-2016 дата публикации

Antenna System Providing Coverage For Multiple-Input Multiple-Output, MIMO, Communication, a Method and System

Номер: US20160329622A1
Автор: Asplund Henrik, Coldrey Mikael, Johansson Martin, Nilsson Andreas
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

The disclosure relates to an antenna system for providing coverage for multiple-input multiple-output, MIMO, communication in mixed type of spaces. The antenna system comprises a leaky cable arranged to provide coverage in a first type of space, and a distributed antenna system comprising one or more antennas and ranged to provide coverage in a second type of space, wherein each of the one or more antennas of the distributed antenna system is connected to the leaky cable through a circulator , and wherein the MIMO communication is enabled by both ends of the leaky cable being adapted for connection to a respective antenna port of a network node configured for IO MIMO communication. The disclosure also relates to a related method and system. 1. An antenna system for providing coverage for multiple-input multiple-output (MIMO) communication in mixed type of spaces , the antenna system comprising:a leaky cable arranged to provide coverage in a first type of space, said leaky cable having i) a first end adapted for connection to a first antenna port of a network node configured for MIMO communication and ii) having a second end adapted for connection to a second antenna port of the network node, anda distributed antenna system comprising:a first an connected to the leaky cable through a first circulator, said first antenna, arranged to provide coverage in a second type of space;a second antenna connected to the leaky cable through the first circulator or through a second circulator, said second antenna arranged to provide coverage in the second type of space.2. The antenna system of claim 1 , whereinthe first antenna is adapted to transmit a configured amount of energy received from the leaky cable through the circulator to which the first antenna is connected and is further adapted to receive energy and to provide to the leaky cable a configured amount of the received energy, andthe second antenna is adapted to transmit a configured amount of energy received from the ...

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Номер записи: 88
09-11-2017 дата публикации

DUALBAND FLEXIBLE ANTENNA WITH SEGMENTED SURFACE TREATMENT

Номер: US20170324138A1
Автор: Carper Duane S., SCHAFFNER James H., SONG HYOK JAE, Talty Timothy J., Yasan Eray
Принадлежит:

An antenna structure including a dual-band WiFi CPW antenna formed on a dielectric substrate and a frequency selective impedance surface formed on the substrate and at least partially surrounding the antenna. The antenna includes a ground plane defining a gap and an antenna radiating element including a radiating portion positioned proximate to the ground plane and a feed line extending into the gap. The frequency selective impedance surface can be a ring that is configured around the radiating portion of the radiating element, where the frequency selective impedance ring receives surface waves propagating along the dielectric substrate generated by the antenna. 1. An antenna structure comprising:a dielectric substrate;a co-planar waveguide (CPW) antenna formed on a surface of the substrate, said antenna including a ground plane defining a gap, said antenna further including an antenna radiating element including a radiating portion positioned proximate to the ground plane and a feed line extending into the gap; anda frequency selective impedance ring formed on the surface of the substrate and being configured around the radiating portion of the radiating element, said frequency selective impedance ring receiving surface waves propagating along the dielectric substrate generated by the antenna.2. The antenna structure according to wherein the frequency selective impedance ring is a semi-circular ring.3. The antenna structure according to wherein the frequency selective impedance ring is a segmented ring including a plurality of ring segments separated by gaps.4. The antenna structure according to wherein the antenna and surface wave suppression structures are embedded within the dielectric substrate.5. The antenna structure according to wherein the gaps have opposing straight edges formed by adjacent ring segments.6. The antenna structure according to wherein the gaps have a flared shape formed by end edges of the adjacent ring segments.7. The antenna structure ...

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Номер записи: 89
09-11-2017 дата публикации

THIN FILM ANTENNA TO FAKRA CONNECTOR

Номер: US20170324143A1
Автор: Carper Duane S., Kona Keerti S., PATEL Amit M., SCHAFFNER James H., SONG HYOK JAE, Talty Timothy J., Yasan Eray
Принадлежит:

A connector assembly that provides a proper impedance connection between a CPW antenna mounted on automotive glass to a FAKRA-type connector. The connector assembly includes a PCB having a top surface and a bottom surface and being adhered to the glass. Vias are provided through the PCB to make electrical contact between metallization planes on the top surface and the bottom surface of the PCB. Terminals that are part of the connector extend through some of the vias, where ground terminals provide mechanical stability and make electrical contact with the metallization planes on the bottom surface of the PCB and a signal terminal provides an electrical connection to the antenna radiating element. The PCB is adhered to a substrate on which the antenna is mounted so that the metallization planes and microstrip lines make electrical contact with a CPW feed structure that feeds the antenna. 1. An RF connector assembly for connecting a co-planar waveguide (CPW) antenna mounted on a substrate to a FAKRA-type connector , said CPW antenna including a ground plane , an antenna radiating element , and a CPW feed structure , said RF connector assembly comprising:a printed circuit board (PCB) including a top surface and a bottom surface, a first ground metallization plane formed on the top surface of the PCB, a first microstrip line formed on the top surface of the PCB and being electrically separated from the first ground plane, a second ground metallization plane formed to the bottom surface of the PCB, a second microstrip line formed on the bottom surface of the PCB and being electrically separated from the second ground plane, and a plurality of vias extending through the PCB some of which make electrical contact between the first and second ground metallization planes and some of which make electrical contact between the first and second microstrip lines, said PCB being secured to the substrate so that the second ground metallization plane and the second microstrip line ...

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Номер записи: 90
09-11-2017 дата публикации

Multi-band transmit/receive feed utilizing pcbs in an air dielectric diplexing assembly

Номер: US20170324164A1
Автор: Scott John Cook
Принадлежит: Individual

In one example an apparatus is provided. The apparatus includes a low frequency radiator, a high frequency radiator, a high frequency waveguide that carries high frequency bands to the high frequency radiator, a low frequency coaxial waveguide coupled to the high frequency waveguide in a coaxial structure, wherein the low frequency coaxial waveguide carries low frequency bands to the low frequency radiator and a low frequency combiner in communication with the low frequency coaxial waveguide, wherein the low frequency combiner comprises a circular low frequency waveguide and air dielectric transmission lines formed by air channels formed above and below a plurality of printed circuits in a metal housing.

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Номер записи: 91
17-10-2019 дата публикации

MOBILE-TERMINAL DETECTION APPARATUS AND MOBILE-TERMINAL DETECTION METHOD

Номер: US20190317181A1
Автор: Matsumoto Munenori
Принадлежит:

A mobile-terminal detection apparatus that detects a location of a mobile terminal inside a vehicle cabin is provided. The mobile-terminal detection apparatus is configured to receive the radio wave through an interior antenna disposed inside the vehicle cabin; receive the radio wave through a leaky cable disposed inside the vehicle cabin; detect a time difference between a timing of reception of the radio wave from the mobile terminal through the interior antenna and a timing of reception of the radio wave through the leaky cable; and detect, based on the time difference, the location of the mobile terminal relative to a path over which the leaky cable is laid. 1. A mobile-terminal detection apparatus that detects a location of a mobile terminal inside a vehicle cabin , the mobile terminal being capable of transmitting a radio wave wirelessly , the mobile-terminal detection apparatus comprising:an antenna receiver that receives the radio wave through an interior antenna disposed inside the vehicle cabin;a leaky-cable receiver that receives the radio wave through a leaky cable disposed inside the vehicle cabin;a time difference detector that detects a time difference between a timing of reception of the radio wave from the mobile terminal through the interior antenna and a timing of reception of the radio wave through the leaky cable; anda mobile-terminal detector that detects, based on the time difference, the location of the mobile terminal relative to a path over which the leaky cable is laid.2. The mobile-terminal detection apparatus according to claim 1 , wherein:the leaky cable is laid under each seat disposed inside the vehicle cabin.3. The mobile-terminal detection apparatus according to claim 1 , wherein:the antenna receiver is configured to receive the radio wave through an exterior antenna oriented toward outside of the vehicle cabin;the leaky-cable receiver is configured to receive the radio wave through a different leaky cable disposed outside the ...

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Номер записи: 92
17-10-2019 дата публикации

5.8 GHz PLANAR ANTENNA, MICROWAVE INDUCTION MODULE AND PREPARING PROCESS THEREOF

Номер: US20190319360A1
Автор: CAI Yanqing, WANG Wen
Принадлежит:

The present invention is a 5.8 GHz planar antenna, including a PCB, wherein the PCB has two layers, one layer is a base material layer, the other layer is a copper foil layer, the copper foil layer and the base material layer are closely adhered, and the size of the base material layer is larger than the size of the copper foil layer; a first microstrip line is disposed on the copper foil layer, and the first microstrip line and the copper foil layer are integrally formed. The present invention further provides a microwave induction module The present invention further provides a process for preparing a microwave induction module. The 5.8 GHz planar antenna and the microwave induction module are optimal in resonant frequency and low in manufacturing cost. 1. A 5.8 GHz planar antenna , comprising a PCB , the PCB having two layers , one layer being a base material layer and the other layer being a copper foil layer , wherein the copper foil layer and the base material layer are closely adhered , and the size of the base material layer is larger than the size of the copper foil layer; and a first microstrip line is disposed on the copper foil layer , and the first microstrip line and the copper foil layer are integrally formed.2. The 5.8 GHz planar antenna according to claim 1 , wherein the first microstrip line is located at an edge of the copper foil layer.3. The 5.8 GHz planar antenna according to claim 2 , wherein the first microstrip line has a size of 3 mm to 10 mm in length and 0.4 mm to 0.6 mm in width.4. The 5.8 GHz planar antenna according to claim 1 , wherein a material of the first microstrip line is copper.5. The 5.8 GHz planar antenna according to claim 1 , wherein the copper foil layer has a size of 16.5 mm to 17.5 mm in length and 11.5 mm to 12.5 mm in width.6. The 5.8 GHz planar antenna according to claim 1 , wherein the base material layer has a size of 17 mm to 18.5 mm in length and 12 mm to 13.5 mm in width.7. The 5.8 GHz planar antenna according to ...

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Номер записи: 93
31-10-2019 дата публикации

SYMMETRIC LEAKY WAVE ANTENNA

Номер: US20190334251A1
Автор: Chung Shyh-Jong, HUANG TZU-CHUAN, KUO CHUAN-TING, TSAI Ching-Han, WANG BO-YI, YU SAN-CHUAN
Принадлежит:

A symmetric leaky wave antenna includes a dielectric substrate, an electric wall, and two reflection bore arrays. The dielectric substrate has a first and a second metal layers disposed on two opposite faces thereof. The first metal layer has a feed end and two travelling wave sides. The electric wall is disposed between two travelling wave sides, with the two travelling wave sides symmetrically disposed with respect to the electric wall. The two reflection bore arrays are symmetrically disposed along the two travelling wave sides, respectively, with the electric wall arranged at a central line between the two reflection bore arrays. The two reflection bore arrays pass through the first metal layer, the second metal layer, and the dielectric substrate. The reflection bore array and the electric wall reduce the leakage rate of the electromagnetic wave, thus increasing the gain value of the antenna.

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Номер записи: 94
29-11-2018 дата публикации

ANTENNA DEVICE AND METHOD FOR PRODUCING ANTENNA DEVICE

Номер: US20180342780A1
Автор: Itoh Naohiro, OTSUKI Takashi
Принадлежит:

An antenna device includes an antenna body, a circuit board, a joint, a transmission line conductor, and a line conductor. The antenna body includes a magnetic body and a conducting wire wound around the magnetic body in a spiral shape. The joint is disposed on the circuit board and coupled to an end of the conducting wire. The transmission line conductor is coupled to the joint. The line conductor is coupled to one of the end of the conducting wire and the transmission line conductor. At least one of a pattern and a length of the line conductor is changeable to adjust an equivalent impedance value of the antenna body. 1. An antenna device comprising:an antenna body including a magnetic body and a conducting wire wound around the magnetic body in a spiral shape;a circuit board;a joint disposed on the circuit board and coupled to an end of the conducting wire;a transmission line conductor coupled to the joint; anda line conductor coupled to one of the end of the conducting wire and the transmission line conductor,at least one of a pattern and a length of the line conductor changeable to adjust an equivalent impedance value of the antenna body.2. The antenna device according to claim 1 ,wherein the magnetic body and the circuit board are superimposed on each other as an integrated part, andwherein the conducting wire is wound around the magnetic body and the circuit board thus integrated.3. The antenna device according to claim 1 ,wherein the line conductor meanders.4. The antenna device according to claim 1 ,wherein the line conductor is spiral.5. The antenna device according to claim 1 ,wherein the line conductor forms a rectangle.6. The antenna device according to claim 1 , further comprising a capacitorincluding the line conductor and a ground conductor, wherein capacitance exists between the line conductor and the ground conductor.7. The antenna device according to claim 1 ,wherein the circuit board is a flexible printed circuit board.8. The antenna device ...

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Номер записи: 95
06-12-2018 дата публикации

DISTRIBUTED CONTROL SYSTEM FOR BEAM STEERING APPLICATIONS

Номер: US20180351255A1
Автор: Desclos Laurent, Singh Abhishek
Принадлежит: ETHERTRONICS, INC.

A technique is described where the switch and/or tunable control circuit for use with an active multi-mode antenna is positioned remote from the antenna structure itself for integration into host communication systems. Electrical delay and impedance characteristics are compensated for in the design and configuration of transmission lines or parasitic elements as the active multi-mode antenna structure is positioned in optimal locations such that significant electrical delay is introduced between the RF front-end circuit and multi-mode antenna. This technique can be implemented in designs where it is convenient to locate switches in a front-end module (FEM) and the FEM is located in vicinity to the transceiver. 1. An antenna system , comprising: a first antenna radiating element positioned above a ground plane and forming an antenna volume therebetween;', 'a first parasitic element positioned outside of the antenna volume and adjacent to the first antenna radiating element, wherein said first parasitic element is configured to provide a first electromagnetic coupling between the first antenna radiating element and the first parasitic element; and', 'a first active tuning component or circuit coupled to the first parasitic element and configured to vary a reactance associated with the first parasitic element for actively changing a radiation pattern of the first active multi-mode antenna;, 'a first active multi-mode antenna, the first active multi-mode antenna includingcharacterized in that the antenna system further comprises:a first transmission line having a first end and a second end, the first end of the first transmission line being coupled to the first parasitic element, and the second end of the first transmission line being coupled to a port associated with the first active tuning component or circuit;wherein the first active tuning component or circuit is integrated within a front-end module associated with a communication system.2. The antenna system of ...

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Номер записи: 96
24-12-2015 дата публикации

MODULATION PATTERNS FOR SURFACE SCATTERING ANTENNAS

Номер: US20150372389A1
Автор: CHEN PAI-YEN, Driscoll Tom, Ebadi Siamak, Hunt John Desmond, JR. Milton, Landy Nathan Ingle, Machado Melroy, Perque, Smith David R., Urzhumov Yaroslav A.
Принадлежит:

Modulation patterns for surface scattering antennas provide desired antenna pattern attributes such as reduced side lobes and reduced grating lobes. 157.-. (canceled)58. A method , comprising:discretizing a hologram function for a surface scattering antenna; andidentifying an antenna configuration that reduces artifacts attributable to the discretizing.59. The method of claim 58 , further comprising:adjusting the surface scattering antenna to the identified antenna configuration.60. The method of claim 58 , further comprising:operating the surface scattering antenna in the identified antenna configuration.61. The method of claim 58 , further comprising:storing the identified antenna configuration in a storage medium.62. The method of claim 58 , wherein the surface scattering antenna defines an aperture and the discretizing includes identifying a discrete plurality of locations on the aperture for a discrete plurality of scattering elements of the surface scattering antenna.63. The method of claim 62 , wherein the discretizing includes identifying a discrete set of states for each of the scattering elements corresponding to a discrete set of function values at each of the locations of the scattering elements.64123.-. (canceled)124. The method of claim 63 , wherein the identifying of the antenna configuration includes:selecting, for the plurality of locations, a plurality of function values from the discrete set of function values, where the selected plurality optimizes a desired cost function for an antenna pattern of the antenna.125. The method of claim 124 , wherein the selecting that optimizes the desired cost function is a selecting with a discrete optimization algorithm.126. The method of claim 125 , wherein the discrete set of function values is a binary set of function values.127. The method of claim 125 , wherein the discrete set of function values is a grayscale set of function values.128. The method of claim 124 , wherein the selecting that optimizes the ...

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Номер записи: 97
24-12-2015 дата публикации

Dual-polarization, circularly-polarized, surface-wave-waveguide, artificial-impedance-surface anntenna

Номер: US20150372390A1
Автор: Daniel J. Gregoire
Принадлежит: HRL LABORATORIES LLC

A dual-polarization, circularly-polarized artificial-impedance-surface antenna has two adjacent tensor surface-wave waveguides (SWGs), a waveguide feed coupled to each of the two SWGs and a hybrid coupler having output ports, each output port of the hybrid coupler being connected to the waveguide feeds coupled to the two SWGs, the hybrid coupler, in use, combining the signals from input ports of the 90° hybrid coupler with phase shifts at its output ports.

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Номер записи: 98
14-11-2019 дата публикации

THIN WIRE ANTENNA FOR CONTROL DEVICES, FOR EXAMPLE, FOR CONTROL OF OR INCLUSION IN A LUMINAIRE

Номер: US20190348744A1
Автор: Clement Matthew, González José, III John Peter, Johnson John, Roquemore
Принадлежит:

An antenna assembly includes a radio frequency (RF) connector connected to a first end of a coaxial cable and a wire antenna attached to a second end of the coaxial cable. The wire antenna may be made of a shape memory alloy, such as nitinol. Examples of RF connectors include U.FL, IFEX, WAX, IPX, AMC, MHF and UMCC connectors that allow the wire antenna to be removably attached to a printed circuit board (PCB) of a lighting control device and to avoid hardwiring the antenna to the PCB. The device that includes the antenna assembly may be incorporated into a luminaire for wireless control of the luminaire. The lighting control device may be installed within the luminaire, such that the wire antenna is positioned between a light source and a diffuser. A number of such luminaires may be combined to provide an intelligent lighting system. 1. An antenna assembly comprising:a coaxial cable;a radio frequency (RF) connector connected to a first end of the coaxial cable; anda wire antenna attached to a second end of the coaxial cable, wherein, the wire antenna comprises a shape memory alloy.2. The antenna assembly of claim 1 , wherein the RF connector is selected from the group consisting of a U.FL claim 1 , IPEX claim 1 , IPAX claim 1 , IPX claim 1 , AMC claim 1 , MHF and UMCC connector.3. The antenna assembly of claim 1 , wherein the RF connector is a U.FL connector.4. The antenna assembly of claim 1 , wherein the shape memory alloy is nitinol.5. The antenna assembly of further comprising a support component that retains and orients at least one of the coaxial cable and the wire antenna.6. The antenna assembly of further comprising a conducting fastener for connecting the wire antenna to the second end of the coaxial cable.7. A lighting control module comprising a printed circuit board carrying a wireless transceiver and an antenna assembly according to claim 1 , wherein the RF connector is removably attached to the wireless transceiver on the printed circuit board.8. The ...

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Номер записи: 99
22-12-2016 дата публикации

Surface wave launcher

Номер: US20160372812A1
Автор: Michael Jessup
Принадлежит: Roke Manor Research Ltd

A surface wave launcher for launching electromagnetic surface waves, the launcher comprising: a waveguide comprising a planar conductive layer; a feed structure comprising a first conductor, the first conductor coupled to the waveguide at a coupling; wherein the waveguide is arranged to be positioned adjacent to a surface suitable for guiding electromagnetic surface waves; and wherein the planar conductive layer comprises one or more slots each having a pair of longitudinal edge, the one or more slots extending through the conductive layer and arranged such that an axis radially extending from the coupling intersects each pair of longitudinal edges of the one or more slots.

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Номер записи: 100