Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 14448. Отображено 100.
30-11-2017 дата публикации

Приемная рамочная антенна с изменяемой диаграммой направленности

Номер: RU0000175333U1

Полезная модель относится к антенной технике. Приемная рамочная антенна с изменяемой диаграммой направленности состоит из двух взаимно перпендикулярных рамок, подключенных через последовательно соединенные устройство вращения диаграммы направленности и дополнительный антенный коммутатор к первому входу сумматора, а к его второму входу через управляемый антенный коммутатор и согласующее устройство, имеющее три входа, подключены две взаимно перпендикулярные рамочные антенны, каждая из которых состоит из двух разнесенных по горизонтали противофазных компланарных рамок, а также рамочная антенна, состоящая из двух разнесенных по горизонтали коаксиальных рамок. С выхода сумматора сигналы поступают на вход радиоприемного устройства. Все проводники антенны, контактирующие с внешней средой, изолированы. Техническим результатом является повышение функциональных возможностей приемной антенны в части ненаправленного приема и подавления помех, приходящих с направлений, близких к направлению прихода сигнала, что достигается изменением диаграммы направленности приемной антенны за счет коммутации рамочных антенн различных типов в определенных сочетаниях. 4 ил. Ц 1 175333 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) се а га ва за (13) (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ НОО 7/00 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017131971, 12.09.2017 (24) Дата начала отсчета срока действия патента: 12.09.2017 Дата регистрации: 30.11.2017 Приоритет(ы): (22) Дата подачи заявки: 12.09.2017 (45) Опубликовано: 30.11.2017 Бюл. № 34 Адрес для переписки: 197045, Санкт-Петербург, Ушаковская наб., 17/ 1, Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова" (72) Автор(ы): Мазепа Валерий Андреевич (КО), Биккенин Рафаэль Рифгатович (КО), Заика Анатолий Иванович (КО) (73) Патентообладатель(и): ...

Подробнее
19-11-2021 дата публикации

Датчик для неинвазивного измерения концентрации глюкозы

Номер: RU0000207850U1

Предложенная полезная модель представляет собой базовую конструкцию датчика, предназначенного для неинвазивного мониторинга концентрации глюкозы в биологических тканях, и может быть использована для создания неинвазивного глюкометра для непрерывного мониторинга концентрации глюкозы.Датчик для неинвазивного измерения концентрации глюкозы состоит из диэлектрической подложки, первого металлического слоя, нанесенного на одной стороне подложки, второго металлического слоя, нанесенного на другой стороне подложки, и имеет широкую полосу рабочей частоты. Первый металлический слой состоит из расположенных на одной оси в центре подложки двухпетлевого, петлевого и щелевого вибраторов и обеспечивает формирование и пролонгирование ближнего поля, обеспечивающего высокую чувствительность датчика 0,5–0,7 дБ/(ммоль/л). Щелевой вибратор выполнен в виде рамки. Второй металлический слой представляет собой металлическую микрополосковую линию, через конец которой происходит запитывание всей конструкции. Внутри диэлектрической подложки находится металлический цилиндр, через который соединяются первый и второй металлические слои. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 850 U1 (51) МПК A61B 5/145 (2006.01) H01Q 1/38 (2006.01) H01Q 7/00 (2006.01) H01Q 13/10 (2006.01) G01N 22/00 (2006.01) G01N 33/50 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК A61B 5/145 (2021.08); H01Q 1/38 (2021.08); H01Q 7/00 (2021.08); H01Q 13/10 (2021.08); G01N 22/00 (2021.08); G01N 33/50 (2021.08) (21)(22) Заявка: 2021114355, 21.05.2021 21.05.2021 Дата регистрации: 19.11.2021 (45) Опубликовано: 19.11.2021 Бюл. № 32 2 0 7 8 5 0 R U (56) Список документов, цитированных в отчете о поиске: CN 103892843 A, 02.07.2014. CN 108899641 A, 27.11.2018. CN 111555017 A, 18.08.2020. CN 109350077 A, 19.02.2019. US 2019104939 A1, 11.04.2019. US 2019231237 A1, 01.08.2019. WO 2018062703 A1, 05.04.2018. KR 20180088156 A, 03.08.2018. KR 101974284 B1, 30.04.2019. RU ...

Подробнее
19-01-2012 дата публикации

System, apparatus, and method for in-vivo assessment of relative position of an implant

Номер: US20120016228A1
Принадлежит: CardioMEMS LLC

A method for providing an in-vivo assessment of relative movement of an implant that is positioned in a living being is provided that comprises a first assembly and a second assembly that are positioned within the living being. The first assembly comprises a passive electrical resonant circuit that is configured to be selectively electromagnetically coupled to an ex-vivo source of RF energy and, in response to the electromagnetic coupling, generates an output signal characterized by a frequency that is dependent upon a distance between the first assembly and the second assembly at the time of the electromagnetic coupling.

Подробнее
26-01-2012 дата публикации

Tag having dipole-loop antenna

Номер: US20120018505A1
Принадлежит: Sensormatic Electronics LLC

A tag has a dipole and loop antenna.

Подробнее
02-02-2012 дата публикации

Embedded printed edge-balun antenna system and method of operation thereof

Номер: US20120026061A1
Автор: Aviv Shachar
Принадлежит: Motorola Inc

An antenna module having a side-edge balance-to-unbalance (BALUN). The antenna module may include a flexible substrate with one or more layers that may be configured to receive one first and second conductive patterns, the substrate may have opposed first and second ends which may define a longitudinal length and/or opposed side edges situated between the first and second ends. The first conductive pattern may form an antenna loop situated adjacent to the first end of the flexible substrate and be suitable for transmitting or receiving signals at one or more frequencies. The second conductive pattern may form at least part of the BALUN and may include one or more of a center portion, side portions which may extend from the center portion at opposite sides of the center portion, and electrically neutral slots situated between a corresponding side portion and the center portion.

Подробнее
08-03-2012 дата публикации

Identification system for objects or products on a display

Номер: US20120055997A1
Автор: Sander De Ridder
Принадлежит: Capturetech BV

There is disclosed an identification system which comprises electromagnetic identification means to be connected to objects, such as products, files, keys, file documents, suspension files and the like, and communication means provided with antennas for communication with the identification means. The system further comprises display means for the objects, which form the antennas, via which regular communication with the identification means takes place. Advantageously, the antennas perform a dual function as transmitters of electromagnetic radiation and as support or suspension elements for the objects, without this being realised at the expense of the advantages of the known identification systems.

Подробнее
22-03-2012 дата публикации

Multi-conductor transmit antenna for magnetic communication systems

Номер: US20120071121A1
Автор: David Levan
Принадлежит: Lockheed Martin Corp

A magnetic communication system utilizing a multi-conductor transmit antenna is provided. Each of the conductors is supplied with an identical signal such that the magnetic fields generated by each conductor add together to create a like signal having an increased strength. Individual energy barriers are operatively connected to each conductor element in order to limit the current supplied to each conductor to intrinsically safe levels.

Подробнее
12-04-2012 дата публикации

Method and Apparatus Pertaining to an RFID Tag Reader Antenna Array

Номер: US20120086553A1
Принадлежит: Wal Mart Stores Inc

One or more frame components that each comprise 1/Xth of a 360 degree RFID tag reader antenna array can be physically coupled to one another to thereby form a multi-frame component. One or more RFID tag reader antenna mounts can comprise a part of such frame components and can be configured to aim a corresponding RFID tag reader antenna outwardly of the frame component. These teachings also accommodate disposing a plurality of RFID tag reader antenna units within a facility such that these antenna units are disposed higher than an expected location of, say, at least 90% of the RFID tags when the latter are in the facility. By one approach these antenna units can all be disposed at a substantially same height within the facility. These antenna units may, or may not, be visually concealed as desired.

Подробнее
21-06-2012 дата публикации

Semiconductor device and semiconductor control system including the same

Номер: US20120157015A1
Принадлежит: Hynix Semiconductor Inc

A semiconductor device includes an interface pad, and an antenna formed to surround the interface pad. The semiconductor device may further include a buffer configured to receive a first input signal applied to the interface pad, a driver configured to output a first output signal to the interface pad a receiver configured to receive a second input signal transferred to the antenna, and a transmitter configured to output a second output signal to the antenna.

Подробнее
19-07-2012 дата публикации

Combination electronic article surveillance/radio frequency identification antenna and method

Номер: US20120182193A1
Принадлежит: Sensormatic Electronics LLC

A combination EAS/RFID antenna for use in an EAS/RFID surveillance system. The antenna includes an EAS antenna element and an RFID antenna element. The EAS antenna element includes an EAS loop antenna defining an interior area. The RFID antenna element is positioned within the interior area defined by the EAS loop antenna and includes a ground plane and RFID patch antenna. The ground plane and/or the RFID patch antenna have a segmented conductor pattern etched thereon. The segmented conductor pattern minimizes eddy currents in the ground plane produced by current flow through EAS loop antenna. The RFID antenna element is situated proximate the EAS loop antenna in such a fashion that the overall size of the antenna is reduced.

Подробнее
19-07-2012 дата публикации

Multi-antenna loop layout

Номер: US20120182199A1
Принадлежит: Waltop International Corp

A multi-antenna loop layout which comprises an array of physical antenna loops, each antenna loop comprising first and second conductive ends. Each conductive end of each antenna loop in the array is coupled to an electrically common contact point that is electrically in common with one or more conductive ends of a subset of other antenna loops in the array. The cumulative total of electrically common contact points, each common contact point being shared by two or more conductive ends of two or more antenna loops in the array, equals a first value T, the first value T being equal to the sum of a second plural value M and a third plural value N. The number of physical antenna loops is equal to at least the product of M and N, and may be as great as T*(T−1)/2.

Подробнее
16-08-2012 дата публикации

Antenna for protecting radio frequency communications

Номер: US20120206238A1
Автор: Thomas G. Lavedas
Принадлежит: Raytheon Co

An antenna for protecting radio frequency communications includes a masking portion to broadcast a masking signal including a first loop and a second loop connected to the first loop, wherein a current supplied to the masking portion flows in opposite polarity in each of the first and second loops. The antenna includes a reader loop to receive a response signal from a responder and decoupled from the masking signal, wherein the masking signal masks the response signal about the responder.

Подробнее
13-09-2012 дата публикации

Method for producing antenna device

Номер: US20120227248A1

A method for manufacturing an antenna device may include a first step of forming an antenna circuit so that the resonance frequency of the antenna circuit will be lower than an oscillation frequency of the reader/writer. The antenna circuit includes an antenna coil that receives the magnetic field transmitted from the reader/writer and a capacitor electrically connected to the antenna coil. The manufacturing method also includes a second step of affixing a magnetic sheet to the antenna coil via an adhesive. The magnetic sheet is at a face-to-face position with respect to the antenna coil and is configured to change the inductance of the antenna coil. The adhesive is of a film thickness to change the inductance so that the resonance frequency of the resonance circuit will be coincident with the oscillation frequency depending on the spacing between the antenna coil and the magnetic sheet.

Подробнее
13-09-2012 дата публикации

Antenna

Номер: US20120229345A1
Принадлежит: Hitachi Metals Ltd

An antenna comprising a laminate of dielectric ceramic layers each provided with electrode patterns, the laminate comprising a first terminal electrode connected to a feed line and a second terminal electrode for grounding on the lower surface, a radiation electrode on the upper surface or on a layer near the upper surface, and a coupling electrode between the lower surface and the radiation electrode; the coupling electrode being connected to the first terminal electrode through via-holes; the radiation electrode being connected to the second terminal electrode through via-holes; and the coupling electrode being partially opposite to the radiation electrode in a lamination direction to form a capacitance-coupling portion.

Подробнее
13-09-2012 дата публикации

Radio frequency access control system and method

Номер: US20120231733A1
Принадлежит: NEAR FIELD MAGNETICS Inc

An access control system includes a transmitter initiator that has a magnetic flux antenna constructed and arranged to direct magnetic energy in an angular direction, a plurality of RF tone detectors, a microcontroller, and a plurality of RF burst generators. The system includes at least one receiver responder that has a magnetic flux antenna, a plurality of RF tone detectors, a microcontroller, and a RF burst generator. The transmitter initiator's magnetic flux antenna and the receiver responder's magnetic flux antenna define an open-air gap therebetween. The transmitter initiator's magnetic flux antenna has a paramagnetic housing, electromagnetic windings within the paramagnetic housing, and at least one ferromagnetic element disposed within the open air gap. The paramagnetic housing and the ferromagnetic element are constructed and arranged to direct a magnetic field across the open air gap. The system is configured for wireless communication via near-field magnetic induction.

Подробнее
20-09-2012 дата публикации

Dual Band RFID Device and Method of Formulation

Номер: US20120235870A1
Автор: Ian J. Forster
Принадлежит: Avery Dennison Corp

A dual band antenna device and method of formation is provided. In one embodiment, the method comprises providing a planar conductive sheet; forming a slot antenna in the conductive sheet; the slot antenna configured to communicate at a first frequency; forming a multi-turn antenna in the conductive sheet; the multi-turn antenna configured to communicate in a second frequency that is different from the first frequency; and connecting at least one integrated circuit to said first antenna and said second antenna; enclosing said first antenna, said second antenna, and said at least one integrated circuit in a wearable enclosure.

Подробнее
27-09-2012 дата публикации

Rf radiation redirection away from portable communication device user

Номер: US20120242549A1
Принадлежит: Pong Res Corp

A case for a wireless device includes a number of RF coupling elements mounted in the case and configured such that RF radiation is coupled from an internal antenna of the wireless device out of the device to a first RF coupling element, and from the first RF coupling element to a RF redirector coupling element that redirects the RF radiation in a direction outward from said wireless device that is opposite to a user side of the wireless device. A corrugated metallic shield is optionally provided on an opposite side of the case, facing a user of the device.

Подробнее
18-10-2012 дата публикации

Mobile Communication Device and Antenna Structure Therein

Номер: US20120262352A1
Автор: Kin-Lu Wong, Yeh-Chun Kao
Принадлежит: Acer Inc

A mobile communication device includes an antenna structure which includes a grounding element and an antenna element. There is a notch at an edge of the grounding element. The antenna element is disposed in the notch and includes a metal loop portion and a monopole antenna. The metal loop portion is electrically connected to the grounding element with at least one shorting point, such that a short-circuited closed metal loop is formed. The monopole antenna has a first end and a second end, wherein the first end of the monopole antenna is a feeding point connected to a signal source, and the second end of the monopole antenna is an open end surrounded by the closed metal loop.

Подробнее
25-10-2012 дата публикации

Antenna devices and portable electronic devices comprising such antenna devices

Номер: US20120268330A1

An exemplary embodiment of an antenna device generally includes a loop element having a length providing loop resonance at a first wavelength, where a resonance frequency of this wavelength is used in a desired frequency band. A capacitance is provided between a first position on the element and ground, thereby dividing the element into a first and a second section. The second section has an inductance that depends on the length and forms a resonance circuit with the capacitance which causes the element to function as a monopole element at the resonance frequency of the resonance circuit. The first position and capacitance are configured for the resonance circuit resonance frequency to lie in the desired frequency band. The first position is configured such that the length of the first section provides a monopole resonance at a second wavelength having one resonance frequency at the resonance circuit resonance frequency.

Подробнее
25-10-2012 дата публикации

Antenna device and antenna system

Номер: US20120268332A1
Автор: Hiroiku Tayama, Ning Guan
Принадлежит: Fujikura Ltd

An antenna element ( 115 ) of an antenna device has first and second root sections ( 117 ) and ( 118 ) and an intermediate section lying between the first and second root sections ( 117 ) and ( 118 ). A feed section ( 114 ) is provided in the first and second root sections ( 117 ) and ( 118 ). The first and second root sections ( 117 ) and ( 118 ) are arranged so as to surround the feed section ( 114 ), and are provided in a wind section ( 113 ). Tail end linear parts in the wind section ( 113 ) extend in respective opposite directions. At least one of the first and second root sections ( 117 ) and ( 118 ) has a wider width part, which is formed such that a portion that overlaps a feed line connected with the feed section ( 114 ) is larger in width than other portions. This makes it possible to realize high radiant gain and improve a VSWR characteristic for each radio wave.

Подробнее
01-11-2012 дата публикации

Implantable medical device antenna

Номер: US20120276856A1
Принадлежит: Cyberonics Inc

An implantable medical device includes a case having a conductive housing defining an opening. A dielectric material is coupled to the conductive housing to hermetically seal the opening. An antenna is within the case under the dielectric material. A header block is coupled to the case over the dielectric material.

Подробнее
08-11-2012 дата публикации

Transponder

Номер: US20120280795A1
Принадлежит: Maxim Integrated Products Inc

Proposed is a transponder for receiving a wireless electromagnetic interrogation signal and for transmitting a wireless electromagnetic response signal with a first coil acting as an antenna for generating a first wired electrical receive signal from the interrogation signal, and with at least one further coil acting as an antenna for generating a further wired electrical receive signal from the interrogation signal, wherein an axis of the first coil and an axis of the further coil are aligned differently in the space, wherein in each case one full-wave rectifier for rectifying the respective receive signal is assigned to the coils, wherein a summing element for summing up the rectified receive signals generated by the full-wave rectifiers is provided in order to generate in this manner a pulsating sum signal, the frequency of which corresponds to twice the frequency of the interrogation signal.

Подробнее
15-11-2012 дата публикации

Implantable medical device without antenna feedthrough

Номер: US20120287004A1
Принадлежит: Cyberonics Inc

An implantable medical device includes a case having a conductive housing defining an opening. A dielectric material is coupled to the conductive housing to hermetically seal the opening. A header block is coupled to the case over the dielectric material. An antenna is within the case under the dielectric material and there is no antenna feedthrough extending through the case into the header block.

Подробнее
06-12-2012 дата публикации

Device having reduced overall dimensions for identifying a metal substrate in a dusty and metallic environment, and application for identifying containers containing nuclear fuel elements in the production plant thereof

Номер: US20120305647A1
Принадлежит: Individual

A device for identifying a metal substrate present in a strongly metallic environment that may also be dusty. The device includes a passive radio-frequency identification (RFID) label, a label carrier suitable for being attached to the metal substrate and to position the label at a distance therefrom, and a RFID reader having an antenna that includes, as an induction loop, two sections of a coaxial cable having a substantially identical length and each including a metal core and a metal pleat surrounding the core, the two sections being linked together, on the one hand, at one end thereof by connecting the core of one to the pleat of the other and conversely and, on the other hand, at the other end thereof by connecting only the pleats together, the cores thereof being separated at said other end.

Подробнее
06-12-2012 дата публикации

Antennas for hearing aids

Номер: US20120308058A1
Автор: Beau Jay Polinske
Принадлежит: Starkey Laboratories Inc

An antenna configured in a hybrid circuit provides a compact design for a hearing aid to communicate wirelessly with a system external to the hearing aid. In an embodiment, an antenna includes metallic traces in a hybrid circuit that is configured for use in a hearing aid. The antenna includes contacts in the hybrid circuit to couple the metallic traces to electronic devices in the hybrid circuit. In an embodiment, the metallic traces form a planar coil design having a number of turns of the coil in a substrate in the hybrid circuit. In another embodiment, the metallic traces are included in a flex circuit on a substrate in the hybrid circuit. An antenna configured in a hybrid circuit allows for use in a completely-in-the-canal hearing aid.

Подробнее
27-12-2012 дата публикации

Communication apparatus and communication system

Номер: US20120326520A1
Автор: Satoshi Konya
Принадлежит: Sony Corp

There is provided a communication apparatus including a magnetic sheet that includes an opening, a non-contract power supply coil that is disposed on the magnetic sheet, a high-frequency coupler that includes a coupling electrode, a ground, and a resonance unit configured to increase an amount of current flowing into the coupling electrode, and is configured such that the coupling electrode appears on the magnetic sheet via the opening, and a communication circuit unit that processes a high-frequency signal transmitted to and received from the coupling electrode.

Подробнее
27-12-2012 дата публикации

Capacitive Loop Antenna and Electronic Device

Номер: US20120326941A1
Автор: Chi-Kang Su, Chia-Tien Li
Принадлежит: Individual

A capacitive loop antenna is disclosed. The capacitive loop antenna comprises a shorting-to-ground terminal, for providing grounding, a feeding terminal, for receiving a first radio frequency feeding signal, and a first capacitive loop. The first capacitive loop comprises a first connection element, a first radiator, comprising an end electrically connected to the feeding terminal via the first connection element, to feed the first radio frequency feeding signal to the first radiator, a second connection element, and a second radiator, comprising an end electrically connected to the shorting-to-ground terminal via the second connection element. A first section of another end of the first radiator is capacitively coupled with the second radiator.

Подробнее
03-01-2013 дата публикации

Multi-system multi-band rfid antenna

Номер: US20130002502A1
Автор: Yong Wang, Yuhang Zhao
Принадлежит: Shanghai IC R&D Center Co Ltd

The present invention provides a multi-system multi-band RFID antenna, which comprises an on-chip antenna and at least one external antenna, wherein the on-chip antenna is arranged on RFID chip; the external antennas are arranged outside the RFID chip; and the RFID chip is provided with connection pads on the outer surface, wherein both the on-chip antenna and the external antennas are connected with the RFID chip through the connection pads. According to the multi-system multi-band RFID antenna of the present invention, the RFID chip can provide appropriate antennas for applications in different systems with different frequency bands, and can satisfactorily meet the need for RFID multi-system integration applications in the future.

Подробнее
24-01-2013 дата публикации

Signal receiving apparatus and wireless communiction device

Номер: US20130023220A1
Автор: Hao Chen

A signal receiving apparatus includes a first base member, a first coil, and a tuning circuit. The first coil is coiled around the first base member to from a first loop antenna having a plurality of parallel and spaced coil portions and two signal output terminals. The tuning circuit includes a first variable capacitor connected between the two signal output terminals.

Подробнее
31-01-2013 дата публикации

Antenna feeding structure and antenna

Номер: US20130027260A1
Принадлежит: Radina Co Ltd

The disclosure provides an antenna feeding structure having a low frequency loop, an intermediate frequency loop, and a high frequency loop, and generates resonance between the inductance of the intermediate frequency loop itself and a capacitive element in the intermediate frequency loop, wherein the antenna feeding structure is configured to be able to adjust the resonance frequency using the area of the loop and the value of the capacitive element, thereby allowing the antenna to have a broadband characteristic, and further, making it possible to easily design an antenna having a desired band.

Подробнее
07-02-2013 дата публикации

Antenna and mobile terminal including the same

Номер: US20130033403A1
Автор: SangBae OH
Принадлежит: Individual

Provided are an antenna and a mobile terminal including the antenna. The antenna includes a loop antenna, a solenoid, and a plurality of connections. The loop antenna is installed on a mobile terminal. The solenoid is connected in parallel to the loop antenna, and receives power. The connections connect the loop antenna to the solenoid. Accordingly, the degree of freedom of an antenna shape and a recognition distance of the antenna are improved.

Подробнее
07-03-2013 дата публикации

Multi-Layered Multi-band Antenna

Номер: US20130057442A1
Принадлежит: DOCKON AG

Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.

Подробнее
21-03-2013 дата публикации

System Using Multi-Layer Wire Structure for High Efficiency Wireless Communication

Номер: US20130069750A1
Принадлежит: Nucurrent Inc

A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency.

Подробнее
21-03-2013 дата публикации

Method of Operation of a Multi-Layer-Multi-Turn Structure for High Efficiency Wireless Communication

Номер: US20130069843A1
Принадлежит: Nucurrent Inc

A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency.

Подробнее
21-03-2013 дата публикации

ANTENNA FOR AN NFC DEVICE

Номер: US20130069844A1
Принадлежит: FRANCE TELECOM

An antenna for near-field communication, comprising at least four turns and having an outside periphery and an inside periphery both of substantially rectangular shape. An inter-turn distance separates two adjacent turns. Each turn has a width substantially equal to the inter-turn distance. In addition, the inside periphery has: (i) a length less than 7 times the distance between the outside periphery and the inside periphery along a longitudinal axis of said antenna, and (ii) a width less than 4 times the distance between the outside periphery and the inside periphery along a lateral axis of said antenna. 1. An antenna for near-field communication ,said antenna comprising at least four turns and exhibiting an exterior periphery and an interior periphery of substantially rectangular shape;an inter-turn distance separating two neighboring turns;wherein each turn has a width substantially equal to the inter-turn distance; andwherein the interior periphery has a length of less than 7 times the distance between the exterior periphery and the interior periphery along a longitudinal axis of said antenna, and has a width of less than 4 times the distance between the exterior periphery and the interior periphery along a lateral axis of said antenna.2. The antenna for near-field communication as claimed in claim 1 , wherein the interior periphery has a length of greater than 5 times the distance between the exterior periphery and the interior periphery along the longitudinal axis of said antenna claim 1 , and has a width of greater than 2 times the distance between the exterior periphery and the interior periphery along the lateral axis of said antenna.3. The antenna for near-field communication as claimed in claim 1 , wherein the inter-turn distance is substantially equal to 1 mm.4. The antenna for near-field communication as claimed in claim 1 , wherein the exterior periphery of said antenna has a length substantially equal to 55 mm and a width substantially equal to 36 mm ...

Подробнее
04-04-2013 дата публикации

Antenna Modification To Reduce Harmonic Activation

Номер: US20130081261A1
Автор: Andrew PIENKOWSKI
Принадлежит: Broadcom Corp

An arrangement for modifying a printed circuit antenna of the type used in mobile communication devices includes introducing one or more discontinuities into a printed circuit pattern of the antenna so that it is not activated at undesired frequencies. Examples of discontinuities include localized narrowing the printed circuit strip, localized widening of the printed circuit strip and localized changing of the shape of the printed circuit strip.

Подробнее
04-04-2013 дата публикации

Antenna circuit constituent body for ic card/tag and method for manufacturing the same

Номер: US20130082882A1
Автор: Hiroki Higashiyama
Принадлежит: Toyo Aluminum KK

Provided are an antenna circuit constituent body for an IC card/tag capable of reducing environmental load in a manufacturing process for joining both end portions of an antenna circuit pattern layer and capable of enhancing reliability of joined portions of the both end portions of the antenna circuit pattern layer: and a method for manufacturing the antenna circuit constituent body for an IC card/tag. In the antenna circuit constituent body for an IC card/tag, an insulating layer ( 107 ) is formed so as to extend from an upper part of a first circuit pattern layer part ( 103 ), via an upper part of a third circuit pattern layer part ( 101 ), and to an upper part of a second circuit pattern layer part ( 104 ). A conductive layer ( 108 ) is formed on the insulating layer ( 107 ) so as to bring the first circuit pattern layer part ( 103 ) and the second circuit pattern layer part ( 104 ) into conduction. The insulating layer ( 107 ) has a plurality of inclined end surfaces on each of the first circuit pattern layer part ( 103 ) and the second circuit pattern layer part ( 104 ).

Подробнее
11-04-2013 дата публикации

Wireless ic device, wireless ic module and method of manufacturing wireless ic module

Номер: US20130087625A1
Автор: Noboru Kato
Принадлежит: Murata Manufacturing Co Ltd

A wireless IC module that can function as a component of an RFID system even when mounted on a metal article includes a loop-shaped electrode that is constructed such that a plane of a loop of the loop-shaped electrode is substantially perpendicular to the mounting surface of a wireless IC module. The loop-shaped electrode functions as a magnetic field antenna and is electromagnetically coupled with a metal article so that the surface of the metal article functions as a radiator antenna.

Подробнее
11-04-2013 дата публикации

Wireless communication device and metal article

Номер: US20130087626A1
Автор: Koji Shiroki, Noboru Kato
Принадлежит: Murata Manufacturing Co Ltd

A wireless communication device includes a wireless IC device, a dielectric substrate, and a metal plate. A radiation conductor coupled to the wireless IC device is provided on the front surface of the dielectric substrate, and a ground conductor connected to the radiation conductor through an interlayer connection conductor is provided on a back surface. The dielectric substrate is fixed to the metal plate via an insulating adhesive, and is crimped by a conductive member. The front and back surfaces of the metal plate are electrically connected to each other by the conductive member, and when a high-frequency signal is supplied from the wireless IC device, a high-frequency signal current on the front surface side of the metal plate is conducted to the back surface side of the metal plate through a surface boundary portion between the conductive member and the metal plate, and radiated as a high-frequency signal.

Подробнее
11-04-2013 дата публикации

ANTENNA CORE, ANTENNA, AND METHODS FOR PRODUCING AN ANTENNA CORE AND AN ANTENNA

Номер: US20130088401A1
Принадлежит: Vacuumschmelze GmbH & CO KG

The invention relates to an antenna core, an antenna comprising an antenna core, and to methods for producing an antenna core and an antenna. The antenna core used in each case consists of a continuous soft-magnetic strip having a plurality of layers which are stacked one on top of the other and each of which is formed by a section of the strip. The layers are connected to one another by curved sections of the strip at end regions of the antenna core. 1. An antenna core , comprising:an elongated shape having a plurality of layers of a through strip comprising a soft-magnetic alloy with an amorphous or nanocrystalline structuretwo end areas disposed some distance apart at either end of the elongated shape, comprising curved sections of the through strip,wherein each of the plurality of layers is connected in at least one of the end areas by a curved section of the through strip to another of the plurality of layers, andwherein the curved section connecting these two layers is integral with these two layers.22. The antenna core according to claim 1 , wherein the plurality of layers form a layer stack claim 1 , wherein claim 1 , except for a top layer of the plurality of layers and except for a bottom layer of the plurality of layers claim 1 , each of the plurality of layers is arranged between two other layers of the plurality of layers claim 1 , and wherein a distance between a layer and each of these two other layers is smaller than a thickness (d) of the through strip.3232. The antenna core according to claim 1 , wherein at least one of the curved sections has a curvature radius (r) that is smaller than ten-times a thickness (d) of the through strip.4232. The antenna core according to claim 3 , wherein at least one of the curved sections has a curvature radius (r) that is smaller than five-times a thickness (d) of the through strip.52324. The antenna core according to claim 1 , wherein each of the curved sections has a curvature radius (r) that is smaller than five ...

Подробнее
11-04-2013 дата публикации

Electronic device with nfc antenna adjacent display and related methods

Номер: US20130090073A1
Принадлежит: Research in Motion Ltd

An electronic device may include a housing having a display opening therein, processing circuitry within the housing, and wireless transceiver circuitry within the housing and coupled to the processing circuitry. The electronic device may also include NFC transceiver circuitry within the housing and coupled to the processing circuitry, a display within the housing and coupled to the processing circuitry, the display having an external surface exposed through the display opening and having an internal surface within the housing, and an NFC antenna positioned within the housing behind and aligned with the internal surface of the display and coupled to the NFC transceiver circuitry.

Подробнее
18-04-2013 дата публикации

Nuclear Magnetic Resonance Logging Tool Having an Array of Antennas

Номер: US20130093422A1
Принадлежит: Halliburton Energy Services Inc

Various disclosed nuclear magnetic resonance (NMR) logging systems and methods employ an array of antennas to provide increased resolution without sacrificing signal-to-noise ratio. Certain method embodiments include: establishing a static magnetic field (B 0 ) with a tool moving along a borehole through a formation; concurrently driving a multiple antenna cells to produce a radio frequency field (B 1 ) in said formation; measuring an individual response from each antenna cell as nuclear spins undergo precession in the formation; and determining at least one characteristic relaxation time of the formation based at least in part on the individual response. The individual responses can be associated with positions where the individual responses were measured, and the relaxation time can be determined from a combination of those responses associated with a given position. Certain responses may be excluded due to tool motion that degrades the measured response.

Подробнее
18-04-2013 дата публикации

Systems and methods of embedding a radio transceiver into an energy storage device used in electronic equipment

Номер: US20130093567A1
Принадлежит: Individual

Systems and methods relating to integration of circuitry including a transmitter or transceiver component into energy storage devices, such as battery packs for portable electronic equipment. Further embodiments also relate to providing a tuned miniature antenna and/or encapsulating such antenna inside the energy storage device.

Подробнее
25-04-2013 дата публикации

Rfid tag integrated into an enclosure surface door

Номер: US20130099004A1
Принадлежит: International Business Machines Corp

An RFID tag assembly for attachment to an enclosure surface including a door, an RFID tag attached to one face of the door or wrapped around the door, and an attachment device for connecting the door to the enclosure surface to allow the door to move to a position that shows both sides of the door. The RFID tag can include a ground plane, the tag wrapped around the door such that the ground plane is on the back of the door and the RFID tag antenna is on the front of the door. A ground plane can be provided on the enclosure inner or outer surface in alignment with the RFID tag antenna, with the antenna directly or inductively coupled to the ground plane when the door is in a closed position.

Подробнее
25-04-2013 дата публикации

Antenna combined with terminal housing

Номер: US20130099984A1
Автор: Jong-Ho Jung
Принадлежит: Ace Technology Co Ltd

An antenna combined with a terminal housing is disclosed. The disclosed antenna includes an outer frame radiator, which is joined to a side wall of the terminal housing, and an inner frame radiator, which has one end joined to a first point on the outer frame radiator and the other end joined to a second point on the outer frame radiator, and which forms a loop by joining the outer frame radiator, where a feed signal is provided to the inner frame radiator. The disclosed antenna provides the advantages of preventing property changes caused by contact between a person's body and the terminal, and of minimizing mounting space while maintaining stable characteristics.

Подробнее
25-04-2013 дата публикации

ANTENNA APPARATUS AND COMMUNICATION TERMINAL INSTRUMENT

Номер: US20130099994A1
Автор: YOSUI Kuniaki
Принадлежит: MURATA MANUFACTURING CO., LTD.

In an antenna apparatus, a first current is induced in a first booster conductor by a current flowing through a coil conductor of a power feed antenna, and the first current circulates along a circumference of the first booster conductor. A second current is induced in a second booster conductor by the current flowing through the coil conductor of the power feed antenna, and the second current circulates along a circumference of the second booster conductor. A third current is induced in the first booster conductor by the second current flowing through the second booster conductor, and the third current circulates along the circumference of the first booster conductor. Thus, the antenna apparatus is much less influenced by nearby metallic objects and a shape of an included radiation plate may be more freely determined without requiring a highly accurate positional relationship between the radiation plate and the coil conductor. 1. An antenna apparatus comprising:a power feed antenna including a coil conductor and connected to a power feed circuit;a first booster conductor coupled to the coil conductor of the power feed antenna through an electromagnetic field; anda second booster conductor coupled to the first booster conductor through an electromagnetic field and coupled to the power feed antenna through an electromagnetic field.2. The antenna apparatus according to claim 1 , wherein in plan view claim 1 , a first edge portion of the coil conductor overlaps a first edge portion of the first booster conductor claim 1 , a second edge portion of the coil conductor overlaps a first edge portion of the second booster conductor claim 1 , and a second edge portion of the first booster conductor overlaps a second edge portion of the second booster conductor.3. The antenna apparatus according to claim 1 , wherein the first booster conductor is larger than the second booster conductor.4. The antenna apparatus according to claim 3 , wherein a distance between the power feed ...

Подробнее
09-05-2013 дата публикации

ANTENNA DEVICE AND METHOD OF SETTING RESONANT FREQUENCY OF ANTENNA DEVICE

Номер: US20130113662A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

In antenna device, a coil conductor of an antenna coil module and a conductor layer at least partially overlap. A current flows in the conductor layer to block a magnetic field generated by a current flowing in the coil conductor. A current flows along the periphery of a slit and around the periphery of the conductor layer due to a cut-edge effect. Since magnetic flux does not pass through the conductor layer, magnetic flux attempts to bypass the conductor layer along a path in which the conductor opening of the conductor layer is on the inside and the outer edge of the conductor layer is on the outside. As a result, the magnetic flux generates large loops that link the inside and the outside of a coil conductor of an antenna on a reader/writer side to couple an antenna device and the antenna on the reader/writer side. 1. An antenna device comprising:a coil conductor having a loop shape or a spiral shape in which a winding center portion defines a coil opening;a conductor layer that is arranged on a side closer to an antenna on a communication partner side than a location of the coil conductor; anda magnetic layer that is arranged on a side farther from the antenna on the communication partner side than the location of the coil conductor; whereinthe conductor layer includes a conductor opening and a slit, the slit connecting the conductor opening and an outer edge of the conductor layer;the conductor layer is larger than an area of a region in which the coil conductor is disposed; andwhen the coil conductor is viewed in plan view, the coil conductor and the conductor layer are superposed one on top of the other.2. The antenna device according to claim 1 , wherein an inside diameter of the coil conductor is larger than a diameter of the conductor opening of the conductor layer.3. The antenna device according to claim 1 , wherein when the coil conductor is viewed in plan view claim 1 , the coil opening and the conductor opening at least partially overlap each other.4. ...

Подробнее
23-05-2013 дата публикации

Antenna, radio receiver and method for manufacturing antenna

Номер: US20130127681A1
Автор: Kaoru Someya
Принадлежит: Casio Computer Co Ltd

An antenna includes an elongated magnetic core, a secondary magnetic path member, a spacer and a coil. The secondary magnetic path member is disposed near the core, and forms a secondary magnetic path. The spacer is disposed between the core and the secondary magnetic path member so as to prevent the core and the secondary magnetic path member from being magnetically coupled. The coil is formed by winding a wire around the core in such a way as to bundle the core and the secondary magnetic path member together.

Подробнее
30-05-2013 дата публикации

Resonator and wireless power transmission device

Номер: US20130135077A1
Принадлежит: Toshiba Corp

There is provided a resonator including a magnetic core and a coil wherein the magnetic core includes a first magnetic core block and a second magnetic core block, the coil is wound on the magnetic core, the first magnetic core block includes a first portion and second portions on sides of the first portion, a sectional area of the first portion is larger than each sectional area of the second portions, the second magnetic core block includes a third portion and fourth portions on sides of the third portion along its longitudinal direction, a sectional area of the third portion is larger than each sectional area of the fourth portions, and the coil is wound on the first portion and the third portion.

Подробнее
30-05-2013 дата публикации

Antenna, antenna apparatus, and communication apparatus

Номер: US20130135165A1
Принадлежит: Panasonic Corp

The claimed invention discloses an antenna including: a magnetic core ( 11 ); a coil winding section ( 14 a , 14 b ) in which a conductive wiring line is wound around the magnetic core; and an adjustment section ( 13 ) connected to one end of the coil winding section. The adjustment section ( 13 ) is disposed at an end part of the magnetic core ( 11 ) and includes a plurality of adjustable conductive wiring lines ( 13 b - 13 d ) formed by dividing a conductive wiring line connected to one end of the coil winding section ( 14 a , 14 b ) into multiple conductive wiring lines in a direction intersecting with a winding axis direction of the coil winding section ( 14 a , 14 b ).

Подробнее
30-05-2013 дата публикации

RESONANT CIRCUIT AND ANTENNA DEVICE

Номер: US20130135172A1
Автор: Ito Hiromitsu
Принадлежит: MURATA MANUFACTURING CO., LTD.

A resonant circuit and an antenna device achieve a low resonance frequency without increasing a coil size, and improve communication performance. In the resonant circuit, two coil-shaped conductors are arranged so as to be opposed to each other with a dielectric sheet interposed therebetween. The two coil-shaped conductors are, at the opposed portions thereof, coupled with a capacitance interposed therebetween, and wound so that electric currents flowing through the respective conductors trend in the same direction in a planar view. The opposed area in at least a portion of the outermost windings and/or innermost windings of the coil-shaped conductors is larger as compared with the opposed area in any other winding, and the respective ends of the conductors define power feeding units. 1. A resonant circuit comprising:two coil-shaped conductors opposed to and coupled with each other with a capacitance interposed therebetween; whereinthe two coil-shaped conductors are wound so that an opposed area in at least a portion of outermost windings and/or innermost windings of the conductors is larger than an opposed area in any other winding, and so that electric currents flowing through the respective conductors trend in a same direction in a planar view from one direction.2. The resonant circuit according to claim 1 , wherein the outermost windings and/or innermost windings of the two coil-shaped conductors are line-shaped and thicker in conductor width than any other winding.3. The resonant circuit according to claim 1 , wherein the two coil-shaped conductors are wound more than one turn claim 1 , and outermost and/or innermost turns of the two coil-shaped conductors are thicker in conductor width than any other turn.4. The resonant circuit according to claim 1 , wherein the outermost windings and/or innermost windings of the two coil-shaped conductors are claim 1 , over entire lengths thereof claim 1 , thicker in conductor width than any other winding.5. The resonant ...

Подробнее
30-05-2013 дата публикации

MULTIBAND LOOP ANTENNA

Номер: US20130135173A1
Автор: Ridgeway Robert Wayne
Принадлежит:

An approximately planar antenna assembly can be formed or used, such as comprising a printed circuit board assembly. In an example, the approximately planar antenna assembly can include a dielectric material and a conductive loop comprising an outer loop portion having a first conic section an inner loop portion having a second conic section located within a footprint of the first conic section. The planar antenna assembly can be configured to support wireless transfer of information in at least two ranges of operating frequencies, such as two or more respective ranges used for cellular communications. 1. An apparatus comprising an approximately planar antenna assembly , the approximately planar antenna assembly comprising:a dielectric material; and an outer loop portion comprising a first conic section; and', 'an inner loop portion comprising a second conic section located within a footprint of the first conic section;, 'a conductive loop comprisingwherein the planar antenna assembly is configured to support wireless transfer of information in at least two ranges of operating frequencies;wherein one or more of the first or second conic sections includes an elliptical shape;wherein a line width of the conductive loop varies along the conductive loop;wherein a lateral width of the conductive loop is widest in a region along a major axis of the first or second conic section; andwherein the approximately planar antenna assembly is configured to support wireless transfer of information within two different specified ranges of operating frequencies, the specified ranges of operating frequencies comprising two different ranges of cellular communications operating frequencies.2. The apparatus of claim 1 , wherein the two different specified ranges of operating frequencies include:a first range from 806 MHz to about 960 MHz; anda second range from about 1.575 GHz to about 2.170 GHz.3. An apparatus comprising an approximately planar antenna assembly claim 1 , the ...

Подробнее
06-06-2013 дата публикации

Wireless ic device

Номер: US20130140369A1
Автор: Masahiro Ozawa, Yuya DOKAI
Принадлежит: Murata Manufacturing Co Ltd

A wireless IC device that improves radiation gain without increasing substrate size and easily adjusts impedance, includes a multilayer substrate including laminated base layers. On a side of an upper or first main surface of the multilayer substrate, a wireless IC element is arranged to process a high-frequency signal. On a side of a lower or second main surface of the multilayer substrate, a first radiator is provided and is coupled to the wireless IC element via a feeding circuit including first interlayer conductors. On the side of the first main surface, a second radiator is provided and is coupled to the first radiator via second interlayer conductors.

Подробнее
13-06-2013 дата публикации

ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS

Номер: US20130147675A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

An antenna device includes an antenna coil including a first conductive pattern disposed on a first major surface of a magnetic sheet, a second conductive pattern disposed on a first major surface of a non-magnetic sheet, and an interlayer conductor connecting the first conductive pattern and second conductive pattern. The antenna coil including the first conductive pattern and second conductive pattern defines a spiral or substantially spiral pattern. The antenna device is a resin multilayer structure in which its base body is a laminate of the magnetic layer and non-magnetic layer and the predetermined patterns are disposed inside and outside the laminate. 1. An antenna device comprising:a plurality of layers including at least a magnetic layer;at least one first conductive pattern having a half-loop shape or a linear shape, including one or more layers, and being adjacent to a first major surface of the magnetic layer;at least one second conductive pattern having a half-loop shape or a linear shape, including one or more layers, and being adjacent to a second major surface of the magnetic layer;an interlayer conductor included in the plurality of layers and connecting the first conductive pattern and the second conductive pattern; andan antenna coil including one turn or a plurality of turns, and including the at least one first conductive pattern, the at least one second conductive pattern, and the interlayer conductor.2. The antenna device according to claim 1 , wherein at least a portion of the at least one first conductive pattern is disposed on the first major surface of the magnetic layer claim 1 , at least a portion of the second conductive pattern is disposed on a first major surface of a non-magnetic layer claim 1 , and the first major surface of the non-magnetic layer is in contact with the second major surface of the magnetic layer.3. The antenna device according to claim 1 , wherein each of the at least one first conductive pattern and the at least ...

Подробнее
20-06-2013 дата публикации

METHOD FOR MAKING A DEVICE COMPRISING A TRANSPONDER ANTENNA ON A THIN WEB AND RESULTING DEVICE

Номер: US20130153667A1
Принадлежит: GEMALTO SA

The invention relates to a method for making a device comprising a transponder antenna, wherein the method comprises the steps of: making an assembly including a thin substrate carrying at least one antenna, the antenna having connection end portions bearing on the substrate at substrates locations. The substrate forms or includes a sheet- or strip-like adhesive body in contact with the antenna. The invention also relates to the resulting device. 1. A method for making a device comprising a transponder antenna , said method comprising:making an assembly including a substrate carrying at least one antenna, the antenna comprising connection end portions bearing on the substrate at substrates locations, andwherein the substrate forms or includes a sheet- or strip-like adhesive body in contact with the antenna.2. A method according to claim 1 , wherein the substrate has a thickness of less than 90 μm.3. A method according to claim 1 , further including a step of forming a cavity close to the connection end portions locations.4. A method according to claim 3 , wherein the step of forming a cavity includes the cutting of a least a start and/or an end portion of an antenna run.5. A method according to claim 3 , further including a step of inserting an electronic module at least partially into the cavity claim 3 , with said module including contact pads positioned opposite the connection end portions of the antenna.6. A method according to claim 3 , further including a step of connecting the contact pads corresponding to the connection end portions after insertion into the cavity.7. A method according to claim 1 , wherein the adhesive is used at a softening temperature of approximately 90 to 110° C.8. A device including a substrate carrying at least one antenna claim 1 , with the antenna comprising:connection end portions bearing on the substrate at substrates locations, wherein the substrate forms or includes a sheet- or strip-like adhesive body in contact with the antenna ...

Подробнее
20-06-2013 дата публикации

ANTENNA DEVICE AND COMMUNICATION TERMINAL DEVICE

Номер: US20130154891A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

An antenna device or a communication terminal device including the antenna device includes ground conductor, which serves as a plate-shaped conductor and is provided in an inner layer of a circuit board. An antenna coil is mounted so that a first main surface of a magnetic core faces the circuit board. The antenna coil is arranged so that a first conductor portion of a coil conductor is at a position that is closer to the ground conductor than a second conductor portion. The antenna coil is arranged so that the first conductor portion of the coil conductor is positioned in the vicinity of a longitudinal direction end portion of a casing, and the first conductor portion of the coil conductor is bent in a direction toward the ground conductor. 1. An antenna device comprising:an antenna coil including a magnetic core having a first main surface and a second main surface and a coil conductor wound around the magnetic core, anda planar conductor arranged close to the magnetic core,wherein the coil conductor includes a first conductor portion positioned on a first main surface side of the magnetic core and a second conductor portion positioned on a second main surface side of the magnetic core and arranged at a different position to the first conductor portion when viewed in plan from a direction of the first or second main surface, andwherein the antenna coil is arranged so that the first main surface side of the magnetic core is on the planar conductor side and so that the first conductor portion of the coil conductor is close to an end portion of the planar conductor, and the first conductor portion of the coil conductor is bent in a direction toward the planar conductor.2. The antenna device according to claim 1 , wherein the width of one end of the magnetic core is larger than the width of the remaining portion of the magnetic core.3. The antenna device according to claim 1 , wherein the magnetic core is a mixture of a magnetic powder and a resin molded into a sheet ...

Подробнее
20-06-2013 дата публикации

ANTENNA CONFIGURATION METHOD AND APPARATUS

Номер: US20130154898A1
Принадлежит: Magellan Technology Pty Ltd.

The present invention relates to the field of data transmission. In one form, the invention relates to the transmission and/or reception of data modulated signals between various devices, including loads and/or antennas. In another form, the invention relates to the field of transponders (tags), such as Radio Frequency Identification Devices (RFID), interrogator devices/systems and the transmission of data between a tag and an interrogator. The present invention utilises antenna design to alleviate tag coupling. 117-. (canceled)18. An antenna comprising:a first portion having a first configuration and arranged substantially in a first plane of a plurality of planes;a second portion exclusive to and connected to the first portion, having a second configuration, and arranged substantially in the first plane;wherein the first portion and the second portion are divisible by a second plane of the plurality of planes, the second plane being perpendicular to the first plane; andwherein the first configuration and the second configuration are not minor images of one another when reflected about an axis formed by intersection of the first plane and any possible orientation of the second plane.19. A tag comprising:an antenna having a first configuration in a first plane;wherein, when the antenna is placed in a face-to-face orientation with another tag having an antenna of a second configuration in a second plane, the first configuration is not a minor image of the second configuration; andwherein the first plane and the second plane are substantially parallel to one another.20. The tag as claimed in claim 19 , wherein the first configuration is not a minor image of the second configuration in a plurality of antenna orientations.21. The tag as claimed in claim 20 , wherein the first configuration is not a minor image of the second configuration in all possible antenna orientations.22. The tag as claimed in claim 19 , wherein the first configuration and the second configuration ...

Подробнее
27-06-2013 дата публикации

Antenna Assemblies with Tapered Loop Antenna Elements

Номер: US20130162487A1
Принадлежит: Antennas Direct Inc

According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes one or more tapered loop antenna elements.

Подробнее
04-07-2013 дата публикации

Battery Assembly

Номер: US20130171479A1

Disclosed is a battery assembly. The battery assembly includes a battery, a front cover enclosing a front end of the battery, a back cover enclosing a back end of the battery and an antenna assembled with the battery. The battery includes a core, and includes a top surface, a bottom surface and a side surface connecting the top surface and the bottom surface. The antenna includes a first output end and a second output end attached to the side surface of the battery, and a loop extending from the first and second output ends.

Подробнее
11-07-2013 дата публикации

Antenna assembly and communication device having same

Номер: US20130176094A1
Автор: Ng Guan Hong, Roger Tay

An antenna assembly includes a loop-shaped coil and a holder. The holder has a first plate, a second plate, and a core disposed between the first plate and the second plate. The loop-shaped coil includes a main coil entwined around the surface of the core of the holder. The main coil includes a hollow space corresponding to the configuration of the core.

Подробнее
11-07-2013 дата публикации

Antenna

Номер: US20130176187A1
Принадлежит: Ehime University NUC

It is an object of the present invention to provide a shared antenna capable of communicating radio waves with different frequencies or different polarization characteristics, having a simple configuration, and capable of being placed in a small device. An antenna 1 according to the invention includes a plurality of loops of the shape of a cross in a spiral fashion and includes a gap 5 provided at a certain midpoint in the spiral loops and a power supply portion 4 provided in a central portion. The distance of the gap 5 is set such that electromagnetic coupling is caused at a first frequency and no electromagnetic coupling is caused at a second frequency different from the first frequency.

Подробнее
18-07-2013 дата публикации

NFC ANTENNA WITH INTERLEAVED COILS

Номер: US20130181875A1
Автор: Charrat Bruno
Принадлежит: INSIDE SECURE

An antenna circuit for near-field communications includes a planar active winding, connected between a first and a second access terminal; an auxiliary winding coplanar with the active winding and connected by a first end to the first access terminal; and a tuning capacitor connected to the second end of the auxiliary winding. The turns of the active and auxiliary windings are interleaved. 1. An antenna circuit for near-field communications comprising:a planar active winding, connected between a first and a second access terminal;a first auxiliary winding coplanar with the active winding and connected by a first end to the first access terminal; anda tuning capacitor connected to the second end of the first auxiliary winding;wherein the turns of the active and first auxiliary windings are interleaved.2. The antenna circuit according to claim 1 , in which a first part of the turns of the first auxiliary winding is situated inside the active winding claim 1 , and a second part of the turns of the first auxiliary winding is situated outside the active winding.3. The antenna circuit according to claim 1 , in which a first part of the turns of the active winding is situated inside the first auxiliary winding claim 1 , and a second part of the turns of the active winding is situated outside the first auxiliary winding.4. The antenna circuit according to claim 1 , in which each turn of the active winding is flanked by two turns of the first auxiliary winding claim 1 , adjacent respectively on the inside and on the outside.5. The antenna circuit according to claim 1 , further comprising a second auxiliary winding coplanar with the active winding claim 1 , connected between the capacitor and the second access terminal claim 1 , the active winding further comprising a group of turns interleaved with the turns of the first auxiliary winding claim 1 , and a group of distinct turns interleaved with the turns of the second auxiliary winding.6. The antenna circuit according to ...

Подробнее
18-07-2013 дата публикации

ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS

Номер: US20130181876A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

An antenna device that includes coil antennas each having a coil conductor wound around a winding axis and a planar conductor including a surface and an edge end portion, the surface extending along the winding axis of the coil conductor, the edge end portion being adjacent to a coil opening of the coil conductor. A current flowing through the coil conductor induces a current in the planar conductor, this current produces a magnetic flux in a direction normal to the planar conductor, and thus the planar conductor acts as a booster antenna. The antenna device has directivity in the direction normal to the planar conductor because the magnetic flux produced by the coil antennas and that produced by the planar conductor are combined. This enables the antenna device to occupy a small area while achieving a predetermined communication distance. 1. An antenna device comprising:a coil antenna that includes a coil conductor wound around a winding axis;a planar conductor that includes a surface and an edge end portion, the surface extending along the winding axis, the edge end portion being adjacent to a coil opening of the coil conductor; anda booster antenna coupled to at least one of the planar conductor and the coil antenna,wherein the booster antenna includes at least two layers of coil conductors each having a loop shape or a spiral shape and a dielectric layer disposed between the two layers.2. The antenna device according to claim 1 , wherein the coil antenna includes a magnetic body arranged at least inside a winding region of the coil conductor.3. The antenna device according to claim 1 , wherein the planar conductor is disposed on a surface of or inside a printed wiring board claim 1 , and the coil antenna is surface-mounted on the printed wiring board.4. The antenna device according to claim 1 , wherein the coil conductor is integral with a stacked structure in which a plurality of base layers are stacked.5. The antenna device according to claim 4 , wherein the ...

Подробнее
18-07-2013 дата публикации

Method to produce a rod tag and tag produced by the method

Номер: US20130181877A1
Принадлежит: ASSA ABLOY AB

A method to produce a rod tag and tag produced according to the method, wherein the method comprises at least the steps of: providing a magnetic core having a cylindrical shape and two end, winding a wire around said core to form an antenna, positioning in longitudinal extension a chip at one of the ends of said rod where the wound wire ends terminates, bonding said wire ends to contacts of said chip, displacing said bonded chip at least partially on said end of said rod, introducing said core with said wire and said chip in an encapsulating means containing a stabilizing material, whereby the chip is further positioned on said end by the friction between said chip and said material during introduction.

Подробнее
25-07-2013 дата публикации

Method for manufacturing sensing electrical device and sensing electrical device

Номер: US20130187813A1
Принадлежит: Taiwan Green Point Enterprise Co Ltd

A method for manufacturing a sensing electrical device includes the following steps; (a) forming a conductive trace on an insulating substrate; (b) placing the insulating substrate with the conductive trace in a mold cavity of a mold; (c) injecting an insulating material into the mold cavity to encapsulate the conductive trace to form an injection product; and (d) removing the injection product from the mold cavity.

Подробнее
25-07-2013 дата публикации

MAGNETIC SHEET AND PRODUCTION METHOD THEREOF, AS WELL AS ANTENNA APPARATUS USING SAME

Номер: US20130187819A1
Принадлежит: Panasonic Corporation

A magnetic sheet that is omnidirectionally flexible, particularly one that is thin, reliably divided into small fragments and has flexibility, is fired in a planar shape. A magnetic sheet of the claimed invention includes: a magnetic body; a protective member provided on at least one face of the magnetic body; and a plurality of holes provided in at least one face of the magnetic body. The magnetic body is divided into a plurality of small fragments using the plurality of holes. The plurality of small fragments vary in shape. 1. A magnetic sheet , comprising:a magnetic body;a protective member provided on at least one face of the magnetic body; anda plurality of holes provided in at least one face of the magnetic body, wherein the magnetic body is divided into a plurality of fragments using the plurality of holes, and the plurality of fragments vary in shape.2. The magnetic sheet according to claim 1 , wherein claim 1 , with respect to the plurality of holes claim 1 , the magnetic body is divided at least between holes that are closest to one another.3. The magnetic sheet according to claim 1 , wherein the plurality of holes are each adjacent to at least three other holes by a shortest distance.4. The magnetic sheet according to claim 1 , wherein the plurality of holes are each adjacent to four other holes by a shortest distance and are arranged in a grid-like fashion.5. The magnetic sheet according to claim 1 , wherein the plurality of holes are each of a tapered shape so that the area of a top section is greater than the area of a bottom section.6. The magnetic sheet according to claim 1 , wherein a bottom of each of the holes is polygonal claim 1 , and the magnetic body is divided using corners of the bottoms of the plurality of holes.7. The magnetic sheet according to claim 1 , frirther comprising a plurality of recessed end sections provided at edges of a sheet face of the magnetic body claim 1 , the plurality of recessed end sections receding inward of the ...

Подробнее
01-08-2013 дата публикации

Communication device, an aircraft rotor, and an aircraft

Номер: US20130194140A1
Принадлежит: Eurocopter SA

A communication device ( 20 ) for communication between a movable piece of equipment ( 101 ) of a rotary rotor ( 5 ) and a stationary piece of equipment ( 102 ). Said communication device ( 20 ) is fitted with a set ( 10 ) of controlling swashplates including a rotary swashplate ( 11 ) and a non-rotary swashplate ( 12 ), the communication device ( 20 ) comprising a movable transfer unit ( 21 ) and a stationary transfer unit ( 22 ) for exchanging information respectively with the movable equipment ( 101 ) and with the stationary equipment ( 102 ). Each transfer unit ( 21, 22 ) is connected to a respective transmit-and-receive antenna ( 31, 32 ), including a movable antenna ( 31 ) connected to the movable transfer unit ( 21 ) and fastened to the rotary swashplate ( 11 ) and a stationary antenna ( 32 ) connected to the stationary transfer unit ( 22 ) and fastened to the non-rotary swashplate ( 12 ), the movable antenna ( 31 ) and the stationary antenna ( 32 ) being suitable for communicating with each other wirelessly.

Подробнее
01-08-2013 дата публикации

WIRELESS COMMUNICATION SYSTEM, AND SMALL PORTABLE DEVICE, HOUSING CASE FOR A SMALL PORTABLE DEVICE, AND COMMUNICATION DEVICE FOR A SMALL PORTABLE DEVICE TO BE USED IN THE WIRELESS COMMUNICATION SYSTEM

Номер: US20130194155A1
Принадлежит: SUMIDA CORPORATION

A wireless communication system may include a first coil having at least a function of transmitting signal information, a relay coil, and a second coil having at least a function of receiving the signal information, and satisfying Equation (1): RO1>RO2>RO3, where RO1 represents an outer diameter of the first coil, RO2 represents an outer diameter of the relay coil, and RO3 represents an outer diameter of the second coil, and a small portable device, a housing case for a small portable device, and a communication device for a small portable device to be used in the wireless communication system. 2. A wireless communication system according to claim 1 , wherein the outer diameter of the second coil is in a range of 10 mm to 20 mm.4. A wireless communication system according to claim 1 , wherein claim 1 , with respect to a center axis direction of the relay coil claim 1 , the first coil is arranged on one side of the relay coil and the second coil is arranged on another side of the relay coil.5. A wireless communication system according to claim 1 , wherein claim 1 , when communication is performed claim 1 , the first coil claim 1 , the second coil claim 1 , and the relay coil resonate.6. A wireless communication system according to claim 1 , wherein at least the second coil is mounted in a small portable device.7. A wireless communication system according to claim 6 ,wherein the small portable device further has the relay coil mounted therein, andwherein the relay coil is formed of a thin-film wiring.8. A wireless communication system according to claim 7 , wherein the relay coil formed of the thin-film wiring is provided on an outer surface of the small portable device.9. A wireless communication system according to claim 7 ,wherein the small portable device includes a housing, andwherein the relay coil formed of the thin-film wiring is provided on at least one surface selected from an inner surface and an outer surface of the housing.10. A wireless communication ...

Подробнее
01-08-2013 дата публикации

LTE ANTENNA PAIR FOR MIMO/DIVERSITY OPERATION IN THE LTE/GSM BANDS

Номер: US20130194156A1
Автор: Iellici Devis
Принадлежит: MICROSOFT CORPORATION

There is disclosed a multiple-input multiple-output (MIMO) antenna system comprising first and second folded or compacted loop antennas (). The antennas each have a longitudinal extent and are mounted substantially parallel to each other on a dielectric substrate () having a conductive groundplane (). The groundplane extends between the first and second antennas, and the first and second antennas are mounted on the substrate in areas where there is no groundplane. The first and second antennas, in use, generate first and second radiation patterns () and also cause currents () to flow in the groundplane between the antennas so as to skew the first and second radiation patterns relative to each other by an angle greater than zero, and preferably at an angle of around 50 degrees. 1: A multiple-input multiple-output (MIMO) antenna system comprising first and second folded or compacted loop antennas each having a longitudinal extent and mounted substantially parallel to each other on a dielectric substrate having a conductive groundplane , wherein the groundplane extends between the first and second antennas , but wherein the first and second antennas are mounted on the substrate in areas where there is no groundplane , and wherein the first and second antennas , in use , generate first and second radiation patterns and also cause currents to flow in the groundplane between the antennas so as to skew the first and second radiation patterns relative to each other by an angle greater than zero.2: An antenna system as claimed in claim 1 , wherein the first and second antennas are mounted opposite each other on the substrate.3: An antenna system as claimed in claim 1 , wherein loops of the first and second loop antennas are substantially co-axial.4: An antenna system as claimed in claim 1 , wherein each of the first and second loop antennas is configured as a loop of conductive track that is formed on a dielectric substrate in a compact manner by folding the loop over an ...

Подробнее
08-08-2013 дата публикации

Multi-layer-multi-turn high efficiency inductors for an induction heating system

Номер: US20130200070A1
Принадлежит: Nucurrent Inc

A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.

Подробнее
08-08-2013 дата публикации

A LOOP ANTENNA FOR MOBILE HANDSET AND OTHER APPLICATIONS

Номер: US20130201074A1
Принадлежит: MICROSOFT CORPORATION

There is disclosed a loop antenna for mobile handsets and other devices. The antenna comprises a dielectric substrate () having first and second opposed surfaces and a conductive track () formed on the substrate (). A feed point () and a grounding point () are provided adjacent to each other on the first surface of the substrate (), with the conductive track () extending in generally opposite directions from the feed point () and grounding point () respectively and winding around the substrate () to the second surface and passing along a path generally opposite to the path taken on the first surface of the dielectric substrate (). The conductive tracks () then connect to respective sides of a conductive arrangement () that extends into a central part of a loop formed by the conductive track () on the second surface of the dielectric substrate (). The conductive arrangement () comprises both inductive and capacitive elements. The antenna can be multi-moded and operate in several frequency bands. Alternatively, the loop antenna is fed parasitically by a monopole or a feeding loop. The parasitic loop antenna my alternatively comprise a conductive loading plate instead of the conductive arrangement. 1. A loop antenna comprising a dielectric substrate having first and second opposed surfaces and a conductive track formed on the substrate , wherein there is provided a feed point and a grounding point adjacent to each other on the first surface of the substrate , with the conductive track extending in generally opposite directions from the feed point and grounding point respectively , then extending towards an edge of the dielectric substrate , then passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate along a path generally following the path taken on the first surface of the dielectric substrate , before connecting to respective sides of a conductive arrangement formed on the second surface of the ...

Подробнее
15-08-2013 дата публикации

Rf tag, magnetic antenna, board mounted with the rf tag, and communication system

Номер: US20130206845A1
Принадлежит: Toda Kogyo Corp

The present invention relates to a magnetic antenna for information communication using a magnetic field component which is a magnetic antenna or an RF tag capable of satisfying both reduction in size and improvement in communication sensitivity. More specifically, the present invention relates to an RF tag comprising a magnetic antenna for transmitting and receiving information using an electromagnetic induction method, and an IC mounted to the magnetic antenna, said magnetic antenna comprising a magnetic core and a plurality of coils formed on the magnetic core in which the coils each have an inductance L 1 satisfying the specific relational formula, and are formed with bank winding when the coils are lap-wound so as to prevent increase in parasitic capacitance thereof, connected in parallel to each other in an electric circuit, and disposed in series on the magnetic core; and a combined inductance L 0 of the magnetic antenna satisfies the specific relational formula.

Подробнее
15-08-2013 дата публикации

Multi-layer-multi-turn high efficiency inductors for electrical circuits

Номер: US20130207744A1
Принадлежит: NUCURRENT, INC.

A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.

Подробнее
15-08-2013 дата публикации

HIGH-FREQUENCY ANTENNA

Номер: US20130207857A1
Автор: Thomas Thierry

The invention relates to an inductive antenna formed from at least two pairs of segments () geometrically butted together and each comprising first () and second () parallel conductors insulated from each other, each pair having, at each end, a single terminal for the electrical connection of its first conductor to that of the neighbouring pair, in which said pairs are of a first type (), in which the conductors are interrupted approximately at their mid-points so as to define the two segments, the first (respectively second) conductor of one segment being connected to the second (respectively first) conductor of the other segment of the pair, or of a second type, in which the first conductor is interrupted approximately at its mid-point so as to define the two segments, the second conductor not being interrupted. 1. An inductive antenna comprising at least two pairs of geometrically butted sections each comprising first and second parallel conductive elements insulated from each other , each pair comprising at each end a single terminal of electric connection of its first conductive element to that of the adjacent pair , wherein said pairs are:of a first type where the conductive elements are interrupted approximately in their middle to define the two sections, the first, respectively the second, conductive element of a section being connected to the second, respectively the first, conductive element of the other section of the pair; orof a second type where the first conductive element is interrupted approximately in its middle to define the two sections, and the second conductive element is not interrupted.2. The antenna of claim 1 , wherein the conductive sections are longilineal claim 1 , the antenna forming a loop having any type of geometry in space.3. The antenna of claim 1 , wherein the respective lengths of the conductive elements are selected according to the resonance frequency of the antenna.4. The antenna of claim 1 , wherein the respective lengths of ...

Подробнее
15-08-2013 дата публикации

Method of loop antenna and improved loop antenna thereof

Номер: US20130207873A1
Автор: Chen-Yu Chou
Принадлежит: Wistron Corp

An improved method of loop antenna and improved loop antenna thereof are provided, the method is used to generate an antenna resonant frequency for a conformed specific communication by modifying a resonant wavelength of a basic loop antenna. The improved method of loop antenna includes the following steps: connecting a first antenna radiator to a resonant point of the basic loop antenna electrically, and using an additional length from the connected first antenna radiator additional length to increase the resonant wavelength of the basic loop antenna, in order to generate an antenna resonant frequency conformed to the specific communication system.

Подробнее
15-08-2013 дата публикации

Method for operation of multi-layer-multi-turn high efficiency inductors with cavity structure

Номер: US20130208389A1
Принадлежит: NUCURRENT, INC.

A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.

Подробнее
29-08-2013 дата публикации

ANTENNA MODULE, MAGNETIC MATERIAL SHEET AND DOUBLE-SIDED ADHESIVE SPACER, AND METHODS FOR THE MANUFACTURE THEREOF

Номер: US20130222198A1
Автор: Kojima Yasushi
Принадлежит: MARUWA, CO., LTD

An antenna module and methods for manufacturing an antenna module, the antenna module including a magnetic material sheet for focusing a magnetic flux, an antenna conductor deposited on the magnetic material sheet and formed in a predetermined pattern, and a protection layer deposited on the antenna conductor for protecting the antenna conductor. 1. An antenna module comprising:a magnetic material sheet for focusing a magnetic flux;an antenna conductor deposited on the magnetic material sheet and formed in a predetermined pattern; anda protection layer deposited on the antenna conductor for protecting the antenna conductor.2. The antenna module according to claim 1 , further comprising a double-sided adhesive spacer arranged between the magnetic material sheet and the protection layer for adhesion of the magnetic material sheet and the protection layer claim 1 , whereina shape of the double-sided adhesive spacer includes at least a part of a planar shape that is complementary to a projection surface of the antenna conductor.3. The antenna module according to claim 1 , further comprising a double-sided adhesive spacer arranged between the magnetic material sheet and the protection layer for making the magnetic material sheet and the protection layer adhere to each other claim 1 , whereina notch having a shape in which the antenna conductor is inserted is formed in the double-sided adhesive spacer, andthe antenna conductor is arranged in the notch.4. The antenna module according to claim 3 , whereina shape of the antenna conductor and a shape of the notch are substantially the same, andthe antenna conductor is embedded in the notch.5. The antenna module according to claim 2 , whereinat least a part of the double-sided adhesive spacer is arranged in an inward region surrounded by an innermost peripheral surface of the antenna conductor.6. The antenna module according to claim 2 , whereina thickness of each of the antenna conductor and the double-sided adhesive spacer ...

Подробнее
05-09-2013 дата публикации

Radio frequency identification reader antenna arrangement with multiple linearly-polarized elements

Номер: US20130229262A1
Автор: David E. Bellows
Принадлежит: Symbol Technologies LLC

An antenna method and apparatus for a Radio Frequency Identification (RFID) reader includes an RFID reader, a plurality of radio ports of the RFID reader, and a plurality of linearly polarized antenna elements coupled to the radio ports, wherein the RFID reader directs the radio ports to sequentially communicatively connect only one antenna element at a time to the RFID reader such that only one antenna element is operable to transmit/receive at any instant in time. The antenna elements are mounted in an alternating vertically polarized and horizontally polarized configuration.

Подробнее
05-09-2013 дата публикации

Antenna device and communication terminal apparatus

Номер: US20130229319A1
Принадлежит: Murata Manufacturing Co Ltd

An antenna device includes a base including a planar conductor disposed thereon, and a coil antenna. The coil antenna includes a coil conductor wound around a magnetic core. The coil antenna is arranged such that a coil opening of the coil conductor is closed to an edge of the planar conductor. A current passing through the coil conductor induces a current in the planar conductor. Thus, a first magnetic flux occurs in the coil antenna, and a second magnetic flux occurs in the planar conductor. Therefore, a third magnetic flux occurs in an area of the planar conductor. Accordingly, the antenna device achieves a small footprint, a small-sized communication terminal apparatus and a desired communication distance.

Подробнее
05-09-2013 дата публикации

SMALL ANTENNA APPARATUS OPERABLE IN MULTIPLE BANDS INCLUDING LOW-BAND FREQUENCY AND HIGH-BAND FREQUENCY AND SHIFTING LOW-BAND FREQUENCY TO LOWER FREQUENCY

Номер: US20130229320A1
Принадлежит:

A radiator is provided with a looped radiation conductor, a capacitor, an inductor, a feed point on the radiation conductor, and a magnetic block provided at at least a part of the inside of a loop of the radiation conductor. When the radiator is excited at a low-band resonance frequency, a first current flows through a first path extending along an inner perimeter of the loop of the radiation conductor and including the inductor and the capacitor. Magnetic flux produced by the first current passes through the magnetic block, thus increasing the inductance of the radiation conductor. When the radiator is excited at a high-band resonance frequency, a second current flows through a second path including a section extending along an outer perimeter of the loop of the radiation conductor, the section including the capacitor but not including the inductor, the section extending between the feed point and the inductor. 1. An antenna apparatus comprising at least one radiator ,wherein each radiator comprises:a looped radiation conductor having an inner perimeter and an outer perimeter;at least one capacitor inserted at a position along a loop of the radiation conductor;at least one inductor inserted at a position along the loop of the radiation conductor, the position of the inductor being different from the position of the capacitor;a feed point provided on the radiation conductor; anda magnetic block provided at at least a part of an inside of the loop of the radiation conductor,wherein each radiator is excited at a first frequency and at a second frequency higher than the first frequency,wherein when each radiator is excited at the first frequency, a first current flows along a first path, the first path extending along the inner perimeter of the loop of the radiation conductor and including the inductor and the capacitor, and magnetic flux produced by the first current passes through the magnetic block, thus increasing an inductance of the radiation conductor,wherein ...

Подробнее
05-09-2013 дата публикации

Antenna System

Номер: US20130229322A1
Автор: Wang Shu-Li
Принадлежит: Apple Inc.

An antenna system includes a dielectrically-loaded loop element electromagnetically coupled to a planar element. The antenna system exhibits uniform, broadband radiation and reception patterns. 1. An electronic device , comprising:a display having edges; anda loop element that forms an antenna structure, wherein at least one segment of the loop element is parallel to one of the edges of the display.2. The electronic device defined in claim 1 , wherein the loop element is formed around the display.3. The electronic device defined in claim 1 , further comprising a printed circuit board claim 1 , wherein the display is mounted to the printed circuit board.4. The electronic device defined in claim 3 , wherein the loop element is formed around the display and the printed circuit board.5. The electronic device defined in claim 1 , wherein the loop element is at least partially filled with a solid dielectric material.6. The electronic device defined in claim 1 , wherein the loop element has a gap and wherein antenna terminals for the antenna structure are located across the gap.7. The electronic device defined in claim 1 , further comprising a backplate claim 1 , wherein the backplate is located within an induction field of the loop element.8. The electronic device defined in claim 1 , wherein the electronic device comprises a cellular telephone.9. An electronic device claim 1 , comprising:a display having edges; anda loop element that forms an antenna structure, wherein at least one segment of the loop element is parallel to one of the edges of the display and wherein the loop element has a gap.10. The electronic device defined in claim 9 , further comprising a printed circuit board claim 9 , wherein the display is mounted to the printed circuit board.11. The electronic device defined in claim 10 , wherein antenna terminals for the antenna structure are located across the gap.12. The electronic device defined in claim 11 , wherein the loop element is formed around the ...

Подробнее
12-09-2013 дата публикации

Enhancing the Efficiency of Energy Transfer to/from Passive ID Circuits Using Ferrite Cores

Номер: US20130233923A1
Принадлежит: Magnet Consulting, Inc.

In one embodiment the present invention includes an RFID gaming token with a ferrite core. When the RFID gaming tokens are stacked, the ferrite cores steer the flux field from the excitation antenna through the center of the annular antennas in each token. The resulting flux field increases the efficiency of the energy transfer from the excitation antenna to the passive tags. This increased efficiency also improves the data transfer to and from the passive tags. This increased efficiency allows for reading RFID gaming tokens at a higher stack height (or at a better error rate for a given stack height) as compared to existing air core gaming tokens. 1. A gaming token including a radio frequency identification (RFID) tag , comprising:a magnetically permeable core;an antenna that receives electromagnetic energy via a component of an electromagnetic field that is orthogonal to the antenna; andtag electronics, coupled to the antenna, that identify the RFID tag in response to receiving the electromagnetic energy,wherein the RFID tag is one of a plurality of RFID tags that, when stacked, result in a stack with a plurality of magnetically permeable cores that vertically steers a magnetic flux field up through the stack.2. The RFID tag of claim 1 , wherein the magnetically permeable core deforms a magnetic flux component of the electromagnetic energy.3. The RFID tag of claim 2 , wherein the magnetic flux component having been deformed concentrates flux lines through the magnetically permeable core.4. The RFID tag of claim 3 , wherein the flux lines having been concentrated couple the electromagnetic energy to the antenna with an increased efficiency as compared to lacking the magnetically permeable core.5. The RFID tag of claim 1 , wherein the magnetically permeable core steers the magnetic flux field of the RFID tag claim 1 , wherein the magnetic flux field results from the electromagnetic energy claim 1 , and wherein steering the magnetic flux field increases a read range ...

Подробнее
12-09-2013 дата публикации

ANTENNA DEVICE AND METHOD OF SETTING RESONANT FREQUENCY OF ANTENNA DEVICE

Номер: US20130234905A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

In antenna device, a coil conductor of an antenna coil module and a conductor layer at least partially overlap. A current flows in the conductor layer to block a magnetic field generated by a current flowing in the coil conductor. A current flows along the periphery of a slit and around the periphery of the conductor layer due to a cut-edge effect. Since magnetic flux does not pass through the conductor layer, magnetic flux attempts to bypass the conductor layer along a path in which the conductor opening of the conductor layer is on the inside and the outer edge of the conductor layer is on the outside. As a result, the magnetic flux generates large loops that link the inside and the outside of a coil conductor of an antenna on a reader/writer side to couple an antenna device and the antenna on the reader/writer side. 1. An electronic appliance comprising:a casing;an antenna device disposed in the casing;a coil conductor having a loop shape or a spiral shape in which a winding center portion defines a coil opening; anda conductor layer that is arranged on a side closer to an antenna on a communication partner side than a location of the coil conductor; whereinthe conductor layer includes a conductor opening and a slit, the slit connecting the conductor opening and an outer edge of the conductor layer, and the slit extending towards an edge surface of the casing; andwhen the coil conductor is viewed in plan view, the coil conductor and conductor layer are superposed one on top of the other.2. The electronic appliance according to claim 1 , wherein the slit in the conductor layer is provided in a portion of the conductor layer at which a distance from the conductor opening to the edge surface of the casing is less than half of a length or width of the casing.3. The electronic appliance according to claim 1 , wherein the slit in the conductor layer is provided in a portion of the conductor layer which is adjacent to the edge surface of the casing.4. The electronic ...

Подробнее
19-09-2013 дата публикации

ANTENNA STRUCTURE IN WIRELESS COMMUNICATION SYSTEM AND OPERATION METHOD THEREOF

Номер: US20130241782A1
Принадлежит:

An antenna device in a wireless communication includes antenna wires of four sides which include three feeding points and have a loop structure and four main switches which are located among the antenna wires of the four sides, wherein the antenna device operates as a loop antenna when the antenna wires of the four sides are connected according to operations of the main switches and wherein the antenna device operates as dipole antennas when the antenna wires of the four sides are disconnected according to operations of the main switches. 1. An antenna device in a wireless communication system , the antenna device comprising:antenna wires of four sides including three feeding points and having a loop structure; andfour main switches located among the antenna wires of the four sides,wherein the antenna device operates as a loop antenna when the antenna wires of the four sides are connected according to operations of the main switches, andwherein the antenna device operates as dipole antennas when the antenna wires of the four sides are disconnected according to operations of the main switches.2. The antenna device of claim 1 , wherein the three feeding points are disposed on three of the antenna wires of the four sides claim 1 , respectively claim 1 ,wherein the loop structure comprises two sides symmetrical to each other, each of the symmetric two sides including a feeding point, each feeding point including a sub-switch configured to connect both wires of the symmetric two sides including the feeding point, andwherein the sub-switch connects both the wires of the symmetric two sides including the feeding point when the antenna device operates as the loop antenna and the sub-switch disconnects both the wires of the symmetric two sides including the feeding point when the antenna device operates as the dipole antennas.3. The antenna device of claim 2 , wherein claim 2 , when the antenna device operates as the dipole antennas claim 2 , each of the symmetric two sides ...

Подробнее
19-09-2013 дата публикации

LARGE-AREA BROADBAND SURFACE-WAVE ANTENNA

Номер: US20130241790A1
Принадлежит: TDF

The antenna comprises a metal excitation loop (B) to be positioned at a height (h) of at least about 1 above the surface (SM) of a conducting medium (M) and a supply means (A, L) to be connected to the conducting medium. The perimeter of the loop is about one half of the operating wavelength, namely λ/2, in length. The loop comprises two approximately parallel portions (I-I, S) which are at most about λ/50 apart and are capable of extending approximately parallel to said surface in a plane approximately perpendicular to said surface, currents of opposite direction flowing through said portions. The closest portion to said surface includes an aperture between ends (E, E) of the loop that are connected to the supply means. The antenna is better protected from space waves and it can be reduced in size by being folded up. 1111111111111npnpnpnn. Surface-wave antenna , comprising a metal excitation loop (B) which can be positioned at a height (h) of at least 1 m above the surface (SM) of a conducting medium (M) and a supply means (A , L) which can be connected to the conducting medium , the loop being of a length of approximately λ/2 and λ representing the operating wavelength of the antenna , wherein the excitation loop (B) comprises two substantially parallel portions (I-I-S) which are at most approximately λ/50 apart and can extend substantially parallel to the surface (SM) of the conducting medium (M) in a plane substantially perpendicular to said surface and can be flowed through by currents of opposite directions , the portion (I-I) closest to said surface comprising an opening between ends (E , E) of the loop (B) which are connected to the supply means (A , L).21111pn. Antenna according to claim 1 , wherein the excitation loop (B) is rectangular and comprises two long sides formed by said two portions (I-I claim 1 , S) and of a length of at most approximately λ/4.322222pnpn. Antenna according to claim 1 , wherein the excitation loop (B) is divided approximately ...

Подробнее
19-09-2013 дата публикации

DIFFUSION BARRIER COATED SUBSTRATES AND METHODS OF MAKING THE SAME

Номер: US20130243940A1
Принадлежит:

Devices on a diffusion barrier coated metal substrates, and methods of making the same are disclosed. The devices include a metal substrate, a diffusion barrier layer on the metal substrate, one or more insulator layers on the diffusion barrier layer, and an antenna and/or inductor on the one or more insulator layer(s). The method includes forming a diffusion barrier layer on the metal substrate, forming one or more insulator layers on the diffusion barrier layer; and forming an antenna and/or inductor on an uppermost one of the insulator layer(s). The antenna and/or inductor is electrically connected to at least one of the diffusion barrier layer and/or the metal substrate. Such diffusion barrier coated substrates prevent diffusion of metal atoms from the metal substrate into device layers formed thereon. 1. A device , comprising:a) a metal substrate, including one or more outermost conductive layer(s),b) one or more insulator layer(s) on said conductive layer(s), andc) an antenna and/or inductor on the one or more insulator layer(s), wherein said antenna and/or inductor is in electric contact with the metal substrate.2. The device of claim 1 , further comprising an electrically conducting strap electrically connecting the antenna and/or inductor and the metal substrate.3. The device of claim 1 , wherein the one or more insulator layer(s) have at most two openings claim 1 , contact holes or vias.4. The device of claim 3 , wherein the one or more insulator layer(s) comprises a bulk dielectric layer having a thickness of from about 1 claim 3 ,000 to about 10 claim 3 ,000 Å.5. The device of claim 3 , comprising a capacitor dielectric layer in a first opening claim 3 , contact hole or via in the bulk dielectric layer.6. The device of claim 5 , wherein said capacitor dielectric layer(s) has a thickness of about 20 to about 500 Å.7. The device of claim 1 , wherein said one or more insulator layer(s) comprises silicon oxide claim 1 , silicon nitride claim 1 , silicon ...

Подробнее
26-09-2013 дата публикации

Small antenna apparatus operable in multiple bands including low-band frequency and high-band frequency with ultra wide bandwidth

Номер: US20130249753A1
Принадлежит: Panasonic Corp

A radiator includes a looped radiation conductor, a capacitor, an inductor, and a feed point on a radiation conductor. In a portion where the radiation conductor and a ground conductor are close to each other, a distance between the radiation conductor and the ground conductor gradually increases as a distance from the feed point along the looped radiation conductor increases. When the radiator is excited at a low-band resonance frequency, a current flows along a first path extending along an inner perimeter of the looped radiation conductor and including the inductor and the capacitor. When the radiator is excited at a high-band resonance frequency, a second current flows through a second path including a section extending along an outer perimeter of the looped radiation conductor, and the section including the capacitor but not including the inductor, and the section extending between the feed point and the inductor.

Подробнее
26-09-2013 дата публикации

ANTENNA COIL TO BE MOUNTED ON A CIRCUIT BOARD AND ANTENNA DEVICE

Номер: US20130249758A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole. 1. An antenna coil for a mobile terminal comprising:a magnetic core having a substantially flat plate shape;a flexible insulating film including a plurality of conductors provided on a surface thereof; anda coil arranged around the magnetic core and defined by the plurality of conductors; whereinthe flexible insulating film is provided on the magnetic core such that the plurality of conductors are arranged between the magnetic core and the flexible insulating film.2. The antenna coil according to claim 1 , wherein the flexible insulating film is a polyimide film or a glass epoxy film.3. The antenna coil according to claim 1 , wherein the magnetic core has a substantially rectangular shape.4. The antenna coil according to claim 3 , wherein the magnetic core is made of a ferrite material. 1. Field of the InventionThe present invention relates to an antenna coil to be mounted on a circuit board for use in an RFID (radio frequency identification) system that performs communication with an external apparatus via an electromagnetic signal, and also relates to an antenna device including such an antenna coil.2. Description of the Related ArtIn RFID systems that have recently been in increasing use, an antenna for information communication is mounted in each of a mobile electronic device, such as a mobile phone, and a reader/writer so that data is exchanged between the mobile electronic device and the ...

Подробнее
03-10-2013 дата публикации

TERMINAL INCLUDING A PLURALITY OF ANTENNAS

Номер: US20130257675A1
Автор: JANG Dongoh, PARK Seoyoung
Принадлежит: SAMSUNG ELECTRONICS CO. LTD.

A terminal for performing at least one of wired and wireless communication is provided. The terminal includes a first antenna configured to recognize a handwriting through a change of an electromagnetic field and a second antenna for a short range wireless communication, wherein the first antenna and the second antenna are formed on a same Flexible Printed Circuit Board (FPCB). 1. A terminal for performing at least one of wired and wireless communication , the terminal comprising:an antenna unit including a first antenna and a second antenna, the first antenna configured to at least one of transmit and receive information via a first frequency band, the second antenna configured to at least one of transmit and receive information via a second frequency band, the first frequency band being different than the second frequency band,wherein the first antenna at least one of transmits and receives communication information through an electromagnetic interaction with the terminal and the second antenna at least one of transmits and receives radio frequency identification information, andwherein the antenna unit is formed on a same circuit board.2. The terminal of claim 1 , further comprising:a controller configured to control an operation of the terminal, wherein the first antenna and the second antenna are connected to the controller through a same connector unit.3. The terminal of claim 1 , wherein the first antenna at least one of transmits and receives information about a change in an induced electromotive force.4. The terminal of claim 1 , wherein the first frequency band is equal to or lower than 1 MHz claim 1 , and the second frequency band is equal to or higher than 10 MHz.5. The terminal of claim 1 , wherein the first antenna includes a plurality of loop shaped antennas.6. The terminal of claim 5 , wherein the second antenna includes a loop shaped antenna including the plurality of loop shaped antennas included in the first antenna.7. The terminal of claim 6 , ...

Подробнее
03-10-2013 дата публикации

ANTENNA FOR RECEPTION OF CIRCULARLY POLARIZED SATELLITE RADIO SIGNALS

Номер: US20130257678A1
Принадлежит: DELPHI DEUTSCHLAND GMBH

An antenna for receiving circularly polarized satellite radio signals has a conductive base surface and at least one a conductor loop oriented horizontally above the base surface by a height h. The conductor loop is configured as a polygonal or circular closed ring line radiator. The ring line radiator forms a resonant structure that is electrically excited so that the current distribution of a running line wave in a single rotation direction occurs on the ring line, wherein the phase difference of which, over one revolution, amounts to essentially 2π. A vertical radiator extends between the conductive base surface and the circumference of the ring line radiator. The height h is smaller than ⅕ of the free-space wavelength λ. 1. An antenna for the reception of circularly polarized satellite radio signals comprising at least one substantially horizontally oriented conductor loop disposed above a conductive ground surface , having an assembly connected to an antenna terminal for electromagnetic excitation of the conductor loop ,wherein the conductor loop comprises a ring circuit emitter, running by a polygonal or circular closed ring circuit in a substantially horizontal plane at a height h above the conductive ground surface,wherein the ring circuit emitter forms a resonance structure and is electrically excitable by electromagnetic excitation in such a way that on the ring circuit the current distribution of a continuous transverse electromagnetic wave occurs in a single direction of rotation, the phase difference of which is exactly 2π over one revolution,wherein at the circumference of the ring circuit emitter there are vertical emitters electromagnetically coupled to the ring circuit emitter at ring circuit coupling points and running to the conductive ground surface, wherein an emitter is electromagnetically coupled to the electrically conductive ground surface and an emitter is coupled at its lower end to the antenna terminal,wherein for assistance of the ...

Подробнее
17-10-2013 дата публикации

ANTENNA FOR A MOIST ENVIRONMENT

Номер: US20130271343A1
Автор: Thomas Thierry

The invention relates to an inductive antenna, comprising: a first planar conductive winding () on a first surface of a substrate, said first winding being cut off at regular intervals so as to form a series of pairs of first conductors (); and a second planar conductive winding () on a second surface of the substrate, said second winding being provided opposite the first winding and cut off in a direction vertically perpendicular to that of the cutoffs of the first winding so as to form a series of pairs of second conductors (). Each pair of first conductors defines a resonant subassembly with the pair of second conductors opposite thereto, wherein each of the two first conductors of a single subassembly are electrically connected to another first conductor of another subassembly or to a terminal () of the antenna, the second conductors of adjacent pairs are not electrically connected to each other, and one end () of each first conductor is either electrically connected () to one end () of a second conductor of the subassembly in question or is not connected thereto, in which case the second conductors of the subassembly in question are electrically connected to one another. 1. An inductive antenna comprising:an insulating substrate;a first planar conductive winding on a first surface of the substrate, interrupted at regular intervals to form a series of pairs of first conductive tracks;a second planar conductive winding on a second surface of the substrate facing the first winding, the interruptions in the second winding facing the interruptions in the first winding to form a series of pairs of second conductive tracks, each pair of first tracks defining, with the facing pair of second tracks, a resonant subassembly;the first two tracks of a same subassembly being not interconnected and each being electrically connected to one and only one other first track of another subassembly or to a terminal of the antenna;the second tracks of neighboring pairs being not ...

Подробнее
24-10-2013 дата публикации

Wireless energy transfer using variable size resonators and system monitoring

Номер: US20130278073A1
Принадлежит: WiTricity Corp

A variable shape magnetic resonator includes an array of at least two resonators each being of a substantially different shapes and at least one power and control circuit configured to selectively connect to and energize at least one of the resonators.

Подробнее
14-11-2013 дата публикации

ANTENNA DEVICE AND METHOD OF SETTING RESONANT FREQUENCY OF ANTENNA DEVICE

Номер: US20130300622A1
Принадлежит:

In antenna device, a coil conductor of an antenna coil module and a conductor layer at least partially overlap. A current flows in the conductor layer to block a magnetic field generated by a current flowing in the coil conductor. A current flows along the periphery of a slit and around the periphery of the conductor layer due to a cut-edge effect. Since magnetic flux does not pass through the conductor layer, magnetic flux attempts to bypass the conductor layer along a path in which the conductor opening of the conductor layer is on the inside and the outer edge of the conductor layer is on the outside. As a result, the magnetic flux generates large loops that link the inside and the outside of a coil conductor of an antenna on a reader/writer side to couple an antenna device and the antenna on the reader/writer side. 1. (canceled)2. An antenna device comprising:a coil conductor having a loop shape or a spiral shape in which a winding center portion defines a coil opening; anda conductor layer that is closer to an antenna on a communication partner side than the coil conductor is relative to the antenna on the communication partner side; whereinthe conductor layer includes a conductor opening and a slit, the slit connecting the conductor opening and an outer edge of the conductor layer;the conductor layer is larger than an area of a region in which the coil conductor is disposed;an inside diameter of the coil conductor is larger than a diameter of the conductor opening of the conductor layer;when the coil conductor is viewed in plan view, all portions of the coil conductor overlap the conductor layer and all portions of the conductor opening overlap the coil opening; andthe conductor layer is arranged to function as a radiator to radiate a magnetic field.3. The antenna device according to claim 2 , wherein a difference between the inside diameter of the coil conductor and the diameter of the conductor opening is less than a difference between an outside diameter of ...

Подробнее
21-11-2013 дата публикации

LOOP ANTENNA WITH SWITCHABLE FEEDING AND GROUNDING POINTS

Номер: US20130307740A1
Принадлежит:

An active differential antenna is described that provides for improved performance for wireless communication systems across a wide set of use cases and environments. A balanced antenna structure along with switch assembly provides the differential mode radiation which results in minimal coupling to the components and items in the near field of the antenna. This results in an efficient antenna that is well isolated from the local environment of the antenna. The switch assembly is configured to switch the feed and ground connections of the differential design when needed to provide similar antenna performance for both “against head left” and “against head right” use cases for a cellular handset application for example. An active component or circuit can be integrated or coupled to the antenna design to provide the capability to dynamically balance the antenna to maintain pattern symmetry and efficiency. 1. An antenna structure for use with a wireless communication device comprising: a signal feeding point at a first end of the loop antenna,', 'at least one contact point at the second end of the loop antenna, and', 'at least one swapping circuit that is electrically connected to the contact point of the loop antenna;, 'a folded loop antenna radiator comprisingthe swapping circuit comprising: a first RF path extending between a first antenna connection point and the PCB RF signal feeding point, and', 'a second RF path extending between a second antenna connection point and a ground point on the PCB, and, 'at least a first configuration, wherein a third RF path is between the second antenna connection point and the PCB RF signal feeding point, and', 'a fourth RF path between the first antenna connection point and the ground point on the PCB., 'a second configuration, wherein2. The antenna structure of claim 1 , wherein the swapping circuit is a switch claim 1 , a diode claim 1 , a Micro Electrical Mechanical System (MEMS) claim 1 , or a tunable capacitor.3. The antenna ...

Подробнее
21-11-2013 дата публикации

ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE

Номер: US20130307746A1
Принадлежит: MURATA MANUFACTURING CO., LTD.

An antenna device includes a feed coil and a sheet conductor. The feed coil includes a magnetic core and a coil-shaped conductor, which is provided around the magnetic core. An RFIC is connected to the feed coil. The sheet conductor has a larger area than the feed coil. A slit that extends from a portion of the edge of the sheet conductor toward the inner side of the sheet conductor is provided in the sheet conductor. The feed coil is arranged such that the direction of the axis around which the feed coil is disposed is parallel or substantially parallel to the directions in which the sheet conductor extends. The feed coil is arranged such that the feed coil is close to the slit and one of coil openings at the ends of the feed coil faces the slit. 1. An antenna device comprising:a feed coil including a coil-shaped conductor; anda sheet conductor having a sheet shape; whereinthe sheet conductor has an area larger than an area of the feed coil;a slit that extends from a portion of an edge of the sheet conductor toward an inner side of the sheet conductor is provided in the sheet conductor, or an opening and the slit are provided in the sheet conductor, the opening being connected to the slit;the feed coil is arranged such that a direction of an axis around which the coil-shaped conductor is disposed differs from a direction perpendicular or substantially perpendicular to the sheet conductor; andthe feed coil is arranged such that a coil opening at one end of the coil-shaped conductor is adjacent to the slit, or a portion of an edge of the opening and the coil opening faces the slit or the portion of the edge of the opening.2. An antenna device comprising:a feed coil that includes a coil-shaped conductor; anda plurality of sheet conductors; whereina slit is provided or an opening and the slit are provided between adjacent sheet conductors of the plurality of sheet conductors, the opening being connected to the slit;a total area of the plurality of sheet conductors is ...

Подробнее
28-11-2013 дата публикации

ANTENNA, SEMICONDUCTOR DEVICE, AND METHOD OF MANUFACTURING ANTENNA

Номер: US20130313329A1

In an antenna and a semiconductor device including the antenna, an object is to reduce the distance between electrodes of a capacitor as much as possible, reduce the area of the electrode of the capacitor as much as possible, and prevent the suppression of response sensitivity and a response range of the semiconductor device. The present invention relates to an antenna including an antenna coil provided over a first region of a base and a capacitor which uses a second region of the base as a dielectric body and which has electrodes provided for opposite planes of the second region of the base, wherein the second region of the base is thinner than the first region of the base, and also relates to a semiconductor device including the antenna. 1. An antenna comprising:an antenna coil provided over a first region of a base; anda capacitor including a second region of the base as a dielectric body, a first electrode and a second electrode, the first electrode provided over a first side of the second region of the base, and the second electrode provided over a second side of the second region of the base,wherein the second region of the base is thinner than the first region of the base.2. The antenna according to claim 1 ,wherein the base is a film containing any one of polyethylene terephthalate, polyethylene naphthalate, polyether sulfone, and polyimide.3. A semiconductor device comprising:a first antenna coil provided over a first region of a base;a capacitor including a second region of the base as a dielectric body, a first electrode and a second electrode, the first electrode provided over a first side of the second region of the base, and the second electrode provided over a second side of the second region of the base; anda chip including a semiconductor integrated circuit and a second antenna coil,wherein the second region of the base is thinner than the first region of the base.4. The semiconductor device according to claim 3 ,wherein the base is a film ...

Подробнее
05-12-2013 дата публикации

MODULAR ANTENNA SYSTEM

Номер: US20130321232A1
Автор: Grundy Kevin P.
Принадлежит: DISH DIGITAL L.L.C.

A modular reconfigurable indoor antenna is disclosed. The antenna may include a bottom piece, a top piece, and a plurality of vertical members. The top piece may include an Ultra High Frequency (UHF) reception element. The plurality of vertical members may be disposed between the bottom piece and the top piece and coupled therewith. At least one of the plurality of vertical members may include a Very High Frequency (VHF) reception element. 1. A modular reconfigurable indoor antenna , wherein the antenna comprises:a bottom piece;a top piece comprising an Ultra High Frequency (UHF) reception element; and at least one of the plurality of vertical members comprises a Very High Frequency (VHF) reception element;', 'each of the plurality of vertical members is disposed between the bottom piece and the top piece; and', 'each of the plurality of vertical members is coupled with the bottom piece and the top piece., 'a plurality of vertical members, wherein2. The modular reconfigurable indoor antenna of claim 1 , wherein:each of the plurality of vertical members is extendible between a contracted first state and an extended second state.3. The modular reconfigurable indoor antenna of claim 2 , wherein:at least one of the plurality of vertical members is biased toward the first state and the second state such that a force necessary to move a vertical member out of the first state or the second state is greater than the a force necessary to move the vertical member between the first state and the second state.4. The modular reconfigurable indoor antenna of claim 2 , wherein:electrical characteristics of the VHF reception element are different in the first state than in the second state.5. The modular reconfigurable indoor antenna of claim 2 , wherein:each of the plurality of vertical members is extendible to a third state between the first state and the second state.6. The modular reconfigurable indoor antenna of claim 5 , wherein:electrical characteristics of the VHF reception ...

Подробнее
12-12-2013 дата публикации

VARIABLE CAPACITANCE CAPACITOR ELEMENT

Номер: US20130328735A1
Принадлежит: TAIYO YUDEN CO., LTD.

A variable capacitance capacitor element according to an embodiment of the present invention comprises: a supporting substrate; a first electrode layer provided on the supporting substrate; a second electrode layer provided opposite to the first electrode layer; and a dielectric layer positioned between the first electrode layer and the second electrode layer. In accordance with an aspect, a main component of the dielectric layer is represented by a composition formula BaSrTiO(0.5≦x≦0.8), and the first thin film dielectric layer has a thickness of 200 nm or smaller. 1. A variable capacitance capacitor element comprising:a supporting substrate;a first electrode layer provided on the supporting substrate;a second electrode layer provided opposite to the first electrode layer; anda first thin film dielectric layer positioned between the first and second electrode layers,{'sub': 1-x', 'x', '3, 'wherein a main component of the first thin film dielectric layer is represented by a composition formula BaSrTiO(0.5≦x≦0.8), and'}wherein the first thin film dielectric layer has a thickness of 200 nm or smaller.2. The variable capacitance capacitor element of claim 1 , wherein the first thin film dielectric layer has a thickness from 30 nm to 150 nm.3. The variable capacitance capacitor element of claim 1 , wherein the first thin film dielectric layer comprises one or more of Mn and Nb as additives.4. The variable capacitance capacitor element of further comprising:a third electrode layer provided opposite to the first electrode layer; anda second thin film dielectric layer positioned between the first and the third electrode layers,{'sub': 1-x', 'x', '3, 'wherein a main component of the second thin film dielectric layer is represented by a composition formula BaSrTiO(0.5≦x≦0.8), and'}wherein the second thin film dielectric layer has a thickness of 200 nm or smaller.5. A resonance circuit comprising:an antenna circuit including an antenna coil; and{'claim-ref': {'@idref': 'CLM- ...

Подробнее
19-12-2013 дата публикации

RFID System and Method

Номер: US20130334317A1
Принадлежит: DEKA Products Limited Partnership

An RFID system includes an RFID antenna assembly configured to be positioned on a product module assembly of a processing system. The product module assembly is configured to releasably engage at least one product container. A first RFID tag assembly configured to be positioned on the at least one product container. The at least one product container is configured to position the first RFID tag assembly within a detection zone of the RFID antenna assembly whenever the product module assembly releasably engages the at least one product container. 1. An RFID antenna assembly configured to be energized with a carrier signal , the RFID antenna assembly comprising:an inductive component including a loop antenna assembly, wherein the circumference of the loop antenna assembly is no more than 25% of the wavelength of the carrier signal;at least one capacitive component coupled to the inductive component; andat least one resistive component coupled to the inductive component;wherein the inductive component is configured to be positioned above a first slot assembly to detect the presence of a first RFID tag assembly within the first slot assembly and not detect the presence of a second RFID tag assembly within a second slot assembly that is adjacent to the first slot assembly.2. The RFID antenna assembly of wherein the RFID antenna assembly is configured to be coupled with an RFID subsystem that is capable of generating the carrier signal.3. The RFID antenna assembly of wherein the carrier signal is a 915 MHz carrier signal.4. The RFID antenna assembly of wherein the wavelength of the carrier signal is approximately thirteen inches.5. The RFID antenna assembly of wherein the circumference of the loop antenna assembly is approximately 0.40 inches.6. An RFID system comprising: an inductive component including a loop antenna assembly, wherein the circumference of the loop antenna assembly is no more than 25% of the wavelength of the carrier signal,', 'at least one capacitive ...

Подробнее
26-12-2013 дата публикации

Multi-Function Radio-Frequency Device, Computer System and Method of Operating Multi-Function Radio-Frequency Device

Номер: US20130341409A1
Принадлежит: WISTRON NEWEB CORP

A multi-function Radio-Frequency device integrated into a computer system is disclosed and includes a substrate including a first surface and a second surface opposite to each other, a touchpad area disposed on the first surface of the substrate for generating a touch signal according to a touch situation, an antenna disposed on the first surface and/or the second surface of the substrate for receiving and transmitting a Radio-Frequency signal, and a control module disposed on the second surface of the substrate and coupled to the touchpad area and the antenna for generating a touch control signal according to the touch signal and generating an identification signal according to the Radio-Frequency signal to the computer system.

Подробнее