With Coupling Network Or Impedance In The Leadin Patents (Class 343/850)
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Publication number: 20140184465Abstract: A first antenna element 102, a second antenna element 103, and a MEMS (micro-electromechanical system) switch 104 are provided, and a feeding point 110 is provided at one end of the first antenna element 102. The other end 113 of the first antenna element 102 is connected to a first terminal 106 of the MEMS switch 104, and one end 114 of the second antenna element 103 is connected to a second terminal 107 of the MEMS switch 104. The one end of the first antenna element 102 is grounded to a ground pattern 101 via an inductor 115, and a ground terminal 105 of the MEMS switch 104 is connected to the other end 113 of the first antenna element 102.Type: ApplicationFiled: June 6, 2012Publication date: July 3, 2014Applicant: PANASONIC CORPORATIONInventors: Hiroyuki Uejima, Yoshio Koyanagi, Suguru Kojima, Takanori Hirobe, Kouta Aoki, Masao Ootani
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Patent number: 8760360Abstract: Methods and apparatus of a switching multi-mode antenna of a user device are described. A switching multi-mode antenna is coupled to receive an RF input from one of at least two radio frequency (RF) feeds via a switch. The switching multi-mode antenna includes multiple antenna structures to communicate information in multiple frequency bands. A first antenna structure is configured to transmit first information in one of the frequency bands and a second antenna structure is configured to receive second information in the same one of the frequency bands.Type: GrantFiled: March 16, 2012Date of Patent: June 24, 2014Assignee: Amazon Technologies, Inc.Inventor: Jerry W. Kuo
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Publication number: 20140162572Abstract: There is provided an antenna device including a first antenna including a first power supply section, a first short-circuited section connected to a bottom board, and a first open-circuited section, and a second antenna including a second power supply section separated from the first power supply section by an electric path length of about n?/4, a second short-circuited section connected to the bottom board, and a second open-circuited section.Type: ApplicationFiled: December 5, 2013Publication date: June 12, 2014Applicant: Sony CorporationInventor: Takayuki Hirabayashi
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Patent number: 8749442Abstract: Presented is an interface circuit for connecting a RF antenna to a RF device. The interface circuit comprises: a first terminal adapted to connect to the RF antenna; a second terminal adapted to connect to the RF device; an inductive load connected to the second terminal; a first switch adapted to connect the inductive load to the first terminal; and a resistive load connected to the second terminal via a second switch.Type: GrantFiled: January 6, 2012Date of Patent: June 10, 2014Assignee: NXP, B.V.Inventors: Frederic Francois Villain, Guillaume Lebailly
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Patent number: 8750798Abstract: A multiple input multiple output (MIMO) antenna module, comprising a first signal feed port coupled to a first antenna element disposed along a first edge of an antenna array board, a second signal feed port coupled to a second antenna element disposed on the antenna array board and a transceiver operable to be selectively coupled to either or both of the first and second signal feed ports.Type: GrantFiled: July 12, 2010Date of Patent: June 10, 2014Assignee: BlackBerry LimitedInventors: Qinjiang Rao, James Paul Warden, Mina Ayatollahi
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Patent number: 8749444Abstract: Disclosed are an impedance matching method, an impedance matching apparatus for the same, and a record medium. The impedance matching apparatus includes an impedance matching part connected to an antenna to transmit/receive a radio wave and including at least one variable capacitor, a detector to detect transmit power and reflected power reflected by the antenna, and a controller to set a first searching region within a whole variation range of the variable capacitor, to detect an optimal impedance matching point within the first searching region by using at least one of the transmit power and the reflected power, and to set a next searching region about the optimal impedance matching point to search for a final impedance matching point within the whole variation range of the variable capacitor.Type: GrantFiled: August 3, 2011Date of Patent: June 10, 2014Assignee: LG Innotex Co., Ltd.Inventor: Ju Young Song
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Patent number: 8736510Abstract: Disclosed are an impedance matching method, an impedance matching apparatus for the same, and a record medium. The impedance matching apparatus includes a storage part to store information about an impedance matching point according a state of an obstacle, an impedance matching part connected to an antenna and including at least one variable element, a detector to detect transmit power and reflected power reflected by the antenna, and a controller to search for an impedance matching point within a variation range of the variable element by using at least one of the transmit power and the reflected power, and to detect a state of a surrounding obstacle by comparing information about the searched impedance matching point with the stored information about the impedance matching point.Type: GrantFiled: August 3, 2011Date of Patent: May 27, 2014Assignee: LG Innotek Co., Ltd.Inventor: Ju Young Song
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Publication number: 20140132472Abstract: A device, apparatus and method for producing a body or platform interfaced with a wideband antenna system. The antenna interfaces to the body or platform so as to comprise a synergistic radiating system.Type: ApplicationFiled: November 13, 2012Publication date: May 15, 2014Applicant: UNITED ANALYTICS CORPORATIONInventors: Larry Martin Tichauer, Jeffrey Bernard Tichauer
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Publication number: 20140132473Abstract: A dual polarization current loop radiator realized with a via, probe, or exposed coaxial feed using part of a vertical metal structure of the radiator to guide current to a feed point of a horizontal metal plate capacitively coupled to the vertical metal structure is described. The vertical metal structure may be either stamped and attached to the ground plane or it can be formed along with metal backplane structure of the radiator. The top of the vertical metal piece is separated from the horizontal metal plate by a predetermined distance dielectric spacing. The spacing may be realized either a thin dielectric core or a non-conductive adhesive material.Type: ApplicationFiled: November 12, 2012Publication date: May 15, 2014Applicant: RAYTHEON COMPANYInventor: Robert S. Isom
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Publication number: 20140125545Abstract: A limiter for high-frequency signals has an input, whereas the high-frequency signal is supplied to the limiter at its input. The limiter provides several limiting stages which are electrically connected to the input. Each limiting stage is a series circuit with an unbiased diode and a Zener diode which does not serve to bias the diode, so that the high-frequency signal is electrically connected to a reference ground via the one unbiased diode and the Zener diode.Type: ApplicationFiled: November 6, 2013Publication date: May 8, 2014Inventors: Josef Forster, Roland Ahlers
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Publication number: 20140125523Abstract: The present invention is a compact directional receiving antenna and method for providing same utilizing true-time-delay methods to achieve a wide pattern bandwidth in a compact size. In one embodiment, two right-triangular-shaped loops are positioned symmetrically in a vertical plane and about a vertical axis so that they share a common apex. In another embodiment, two pairs of loops are positioned in an orthogonal manner about a vertical axis to form an electronically rotatable antenna array. In yet another embodiment, a single loop is provided with a pair of spaced couplers.Type: ApplicationFiled: November 7, 2012Publication date: May 8, 2014Inventor: Mark A. Bauman
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Patent number: 8717247Abstract: A front-end circuit includes a signal path and a first antenna port. A first antenna switch is electrically connected to the first antenna port. A second antenna port is electrically connectable or connected to the signal path. An antenna termination circuit is electrically connected to the first antenna switch. The antenna termination includes an impedance element. The first antenna switch electrically connects the first antenna port to the antenna termination circuit when the signal path is electrically connected to the second antenna port.Type: GrantFiled: March 4, 2011Date of Patent: May 6, 2014Assignee: EPCOS AGInventors: Pasi Tikka, Jarmo Valtonen
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Patent number: 8718578Abstract: A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.Type: GrantFiled: September 7, 2012Date of Patent: May 6, 2014Assignee: Intel Mobile Communications GmbHInventors: Bernd Adler, Zdravko Boos
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Publication number: 20140118216Abstract: An antenna structure of a Radio Frequency (RF) device includes an antenna and a transmission line circuit coupled to the antenna. The transmission line circuit includes a plurality of transmission line circuit elements and a transmission line coupling circuit that couples at least one of the transmission line circuit elements together to form the transmission line circuit based on a transmission line characteristic signal.Type: ApplicationFiled: January 8, 2014Publication date: May 1, 2014Applicant: BROADCOM CORPORATIONInventor: Ahmadreza Rofougaran
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Patent number: 8711051Abstract: An antenna device includes a feed element being of a length that allows resonance in a specified frequency band, a distributed constant feed line grounded at one end and coupled at another end to the feed element to form a feeding point, a reactive element grounded at one end and coupled at another end to a position a specified distance from the feeding point of the feed line, a first switch disposed between the feed line and the reactive element and used to select whether the feed line and the reactive element are coupled or uncoupled, a parasitic element disposed adjacent to the feed element and being of a length that allows resonance in a frequency band different from the frequency band in which the feed element resonates, and a second switch used to select whether the parasitic element is grounded.Type: GrantFiled: August 11, 2011Date of Patent: April 29, 2014Assignee: Fujitsu LimitedInventor: Takashi Yamagajo
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Publication number: 20140104129Abstract: The present disclosure discloses an ultra-wideband antenna, including: a coplanar waveguide feeder connected to a Radio Frequency (RF) excitation port on the PCB substrate at one end and to a tapering supporting arm at the other end; the tapering supporting arm connected to the coplanar waveguide feeder at one end and to a primary radiating closed-band-shaped monopole at the other end; the primary radiating closed-band-shaped monopole connected to the tapering supporting arm; a primary coupling patch located in the area closed by the closed band of the primary radiating closed-band-shaped monopole; a secondary radiating closed-band-shaped monopole connected to the primary radiating closed-band-shaped monopole through a metallic via; and a secondary coupling patch located in the area closed by the closed band of the secondary radiating closed-band-shaped monopole. The present disclosure also discloses an ultra-wideband terminal.Type: ApplicationFiled: April 24, 2012Publication date: April 17, 2014Applicant: ZTE CorporationInventors: Yajun Chen, Shougang Cheng, Jun Shen, Yu Qin
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Patent number: 8692734Abstract: A dielectrically loaded quadrifilar helical antenna has four quarter turn helical elements centered on a common axis. Each helical element is metallized on the outer cylindrical surface of a solid dielectric core and each has a feed end and a linked end, the linked ends being connected together by a linking conductor encircling the core. At an operating frequency of the antenna the helical elements and the linking conductor together form two conductive loops each having an electrical length in the region of (2n?1)/2 times the wavelength, where n is an integer. Such an antenna tends to present a source impedance of at least 500 ohms to receiver circuitry to which it is connected. The invention includes an antenna assembly including a dielectrically antenna and a receiver having a radio frequency front-end stage with a differential input coupled to the feed ends of the helical elements.Type: GrantFiled: September 9, 2009Date of Patent: April 8, 2014Assignee: Sarantel LimitedInventor: Oliver Paul Leisten
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Patent number: 8692718Abstract: An antenna and a wireless IC device that includes the antenna are provided for which the manufacturing process is simple and for which there is a low probability of a poor connection occurring between a feeder portion and a radiation electrode. An antenna includes a radiation electrode that is provided on a main surface of an insulator board, a ground electrode and/or a counter electrode that is arranged so as to oppose the radiation electrode, and a magnetic field electrode that is connected to the radiation electrode through a connection portion. The magnetic field electrode is defined by line-shaped electrodes and feeds a signal to the radiation electrode from a feeder portion defined by ends of the line-shaped electrodes through the magnetic field electrode.Type: GrantFiled: April 11, 2011Date of Patent: April 8, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Noboru Kato, Yuya Dokai
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Bandpass filter, radio communication module and radio communication device using the bandpass filter
Patent number: 8674898Abstract: Provided is a bandpass filter which can cope with a wide band and has a large degree of freedom in designing a pass band. Provided also are a radio communication module and a radio communication device using the bandpass filter. The bandpass filter includes a first, a second, and a third resonator (10, 20, 30). The first and the third resonator (10, 30) have a resonance frequency f1 while the second resonator (20) has a resonance frequency f2 which is different from f1. If fe is the even-number mode resonance frequency of a resonance system formed by the first and the third resonator (10, 30) and fo is the odd-number mode resonance frequency, f2 is lower or higher than both of fe and fo. The bandpass filter has a pass band including fe, fo, and f2.Type: GrantFiled: September 30, 2009Date of Patent: March 18, 2014Assignee: Kyocera CorporationInventor: Hiromichi Yoshikawa -
Publication number: 20140055315Abstract: An auxiliary antenna for a RF communicating computing device such as a smartphone or pad computer or laptop computer, is provided for enhancement of the RF transmit and receive capabilities of the computing device. The antenna is engaged using mutual coupling of the antenna to an input point or feed line or antenna element of the computing device by registered placement on or adjacent an exterior surface of the computing device. The registered engagement can be provided by inclusion of the auxiliary antenna in a protective or decorative surrounding case, or use of an applicable antenna on a dialectic and a pattern configured to only engage the proper surface of the computing device.Type: ApplicationFiled: August 26, 2013Publication date: February 27, 2014Inventors: Henry Cooper, Sheng Peng
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Publication number: 20140049438Abstract: An antenna including a ground plane region, a feed element having associated with it a first reactance and a coupling element having associated with it a second reactance, the second reactance being of opposite sign to the first reactance, the coupling element being coupled to the feed element and to the ground plane region and being located in close proximity to the ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on the first and second reactances.Type: ApplicationFiled: October 28, 2013Publication date: February 20, 2014Applicant: GALTRONICS CORPORATION LTD.Inventors: Steve KRUPA, Snir AZULAY
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Patent number: 8648766Abstract: An antenna includes a waveguide having an aperture at a first end and a conducting component at a second end, the conducting component shorting the waveguide and a first set of two orthogonal dipoles, fed in quadrature, the orthogonal dipoles located near the aperture of the waveguide operating close to its dominant mode cut off frequency.Type: GrantFiled: September 17, 2012Date of Patent: February 11, 2014Assignee: UTI Limited PartnershipInventors: Ronald H. Johnston, Elise Fear
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Patent number: 8643550Abstract: A flexible antenna comprises a filmed layer, a flexible radiation conductor and a support member. The flexible radiation conductor has a crooked form and a feeder terminal. The filmed layer covers the upper surface of the flexible radiation conductor. The support member has a through-hole. The lower surface of the flexible radiation conductor is stuck to the upper surface of the support member. The feeder terminal is inserted through the through-hole to protrude from the lower surface of the support member. The flexible radiation conductor and the crooked feeder terminal thereof replace the conventional radiation conductor circuit layer and metallic contact terminal to overcome the problem that the conventional contact terminal damages the radiation conductor layer and protrudes the filmed layer. Further, the present invention integrates FPC and LDS technologies to enable the flexible radiation conductor to be arbitrarily stuck to complicated planes or complicated curved surfaces.Type: GrantFiled: March 23, 2011Date of Patent: February 4, 2014Assignee: Advanced Connectek Inc.Inventors: Tsung-Wen Chiu, Fu-Ren Hsiao, Chih-Fan Chen, Po-Sheng Chen
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Patent number: 8643564Abstract: A triplate line inter-layer connector and a planar array antenna are provided. The triplate line inter-layer connector has an electrical connection structure between a first triplate line and a second triplate line, a first patch pattern formed at a connection-side terminal end of a first feeder line, a first feed substrate having a first shield spacer disposed therebeneath, and a second shield spacer disposed thereabove. Each of the first and second shield spacers has a hollow portion hollowed out to a size encompassing the first feeder line and the first patch pattern so as to define a corresponding one of first and second dielectrics. A second feeder line is provided on a second feed substrate together with a second patch pattern, and a second ground conductor has a first slit formed in a portion thereof located approximately intermediate between the first and second patch patterns.Type: GrantFiled: August 26, 2010Date of Patent: February 4, 2014Assignee: Hitachi Chemical Company, Ltd.Inventors: Yuuichi Shimayama, Masahiko Oota, Takashi Saitou
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Patent number: 8643565Abstract: An antenna subsystem includes an antenna and a radio frequency (RF) feed structure. The antenna subsystem includes a signal layer, a ground plane layer, and a middle layer arranged therebetween. The RF feed includes a substrate, a port, and a conductive layer. The port is arranged and configured for selective coupling with a transmission line. A conductive layer includes a first portion electrically connected to the port, which transfers an RF signal between the transmission line and a signal layer. The conductive layer also includes a second portion electrically connected to the port, which electrically couples a ground conductor of the transmission line to the ground plane.Type: GrantFiled: December 6, 2011Date of Patent: February 4, 2014Assignee: Seeonic, Inc.Inventor: Nicholas F. Singh
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Publication number: 20140015729Abstract: A first antenna element 102, a second antenna element 103, and a MEMS (micro-electromechanical system) switch 104 are provided, and a feeding point 110 is provided at one end of the first antenna element 102. The other end 113 of the first antenna element 102 is connected to a first terminal 106 of the MEMS switch 104, and one end 114 of the second antenna element 103 is connected to a second terminal 107 of the MEMS switch 104. The one end of the first antenna element 102 is grounded to a ground pattern 101 via an inductor 115, and a ground terminal 105 of the MEMS switch 104 is connected to the other end 113 of the first antenna element 102.Type: ApplicationFiled: June 6, 2012Publication date: January 16, 2014Applicant: PANASONIC CORPORATIONInventors: Hiroyuki Uejima, Yoshio Koyanagi, Suguru Kojima, Takanori Hirobe, Kouta Aoki, Masao OotaniI
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Patent number: 8629813Abstract: An adjustable multi-band planar antenna especially applicable in mobile terminals. In one embodiment, the feed of the antenna is connected by a multiple-way switch to at least two alternative points of the radiator element. When the feed point is changed, the resonance frequencies and thus the operating bands of the antenna change. In addition to varying the basic dimensions of the antenna, the distance between one feed point to another and a possible short-circuit point in the radiator, the value of the series capacitance produced by a reactive circuit that is formed between the feed point and switch, and the distance between the ground plane and the radiator, are parameters that may affect the antenna design.Type: GrantFiled: August 20, 2008Date of Patent: January 14, 2014Assignee: Pusle Finland OyInventor: Zlatoljub Milosavljevic
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Publication number: 20130342420Abstract: A simple antenna assembly suitable for several wireless frequency bands includes a base board, a first radiator, and a second radiator. The base board has opposite sides connected by an edge and includes a feed point and a grounding point. The first radiator is electronically connected to the feed point, and the second radiator is electronically connected to the grounding point. The first radiator and the second radiator are positioned at opposite sides of an edge of the base board and spaced from each other. The first radiator receives and transmits wireless signals having a first central frequency, and the second radiator is coupled with the first radiator to cooperatively receive and transmit wireless signals having a second central frequency.Type: ApplicationFiled: June 6, 2013Publication date: December 26, 2013Inventor: CHUN-YU LU
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Patent number: 8614646Abstract: Techniques for adjusting one or more antenna parameters to optimize the performance of a wireless device are disclosed. In an embodiment, a variable antenna match is provided with a control signal for selecting a preferred antenna match setting. The preferred antenna match setting may correspond to the setting having a best signal quality metric. In a further embodiment, a variable antenna electrical length module is provided with a control signal for selecting a preferred antenna electrical length. Further techniques for accommodating multiple antennas are disclosed.Type: GrantFiled: June 5, 2008Date of Patent: December 24, 2013Assignee: Qualcomm IncorporatedInventors: Yang Zhang, Jack Steenstra, Ernest T. Ozaki, Jui-Yao Lin, Kirk S. Taylor, Liren Chen, Guilherme Luiz Karnas Hoefel
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Patent number: 8610636Abstract: A radio frequency IC device includes a radio frequency IC chip, a feeder circuit substrate, and a radiating plate. The feeder circuit substrate includes a feeder circuit that electrically connects to the radio IC chip and that includes a resonance circuit and/or a matching circuit including inductance elements. The feeder circuit substrate is bonded to the radiating plate, which radiates a transmission signal supplied from the feeder circuit and supplies a received signal to the feeder circuit. The inductance elements are arranged in spiral patterns wound in opposite directions and couple to each other in opposite phases. The radio frequency IC device is able to obtain a radio frequency IC device that is not susceptible to being affected by a usage environment, minimizes variations in radiation characteristics, and can be used in a wide frequency band.Type: GrantFiled: June 20, 2011Date of Patent: December 17, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Noboru Kato, Jun Sasaki, Kosuke Yamada
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Publication number: 20130321235Abstract: The invention provides an antenna which can be configured to use s selected number of coils but for the same operating frequency. This enables a desired (and adjustable) compromise to be found between power consumption and signal strength.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Inventor: Jean-Luc Luong
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Patent number: 8600320Abstract: A mobile wireless communications device includes a portable housing, a transmitter carried by the portable housing and configured to modulate an input signal, and an adjustable impedance matching network coupled downstream from the transmitter. An antenna is coupled downstream from the adjustable impedance matching network, and a non-directional coupler is coupled between the adjustable impedance matching network and the antenna. A feedback receiver is coupled to the non-directional coupler to generate a feedback signal. A controller is configured to control the adjustable impedance matching network based upon the input signal and the feedback signal.Type: GrantFiled: February 8, 2013Date of Patent: December 3, 2013Assignee: BlackBerry LimitedInventor: Khurram Muhammad
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Publication number: 20130307746Abstract: 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.Type: ApplicationFiled: May 20, 2013Publication date: November 21, 2013Applicant: Murata Manufacturing Co., Ltd.Inventors: Shinichi NAKANO, Kuniaki YOSUI, Noboru KATO
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Patent number: 8587495Abstract: An antenna system includes a multi-port antenna with an active feeding network coupled thereto. The active feeding network applies complex weights to signals received from and transmitted to each port of the multi-port antenna. The complex weights are applied according to eigenvectors corresponding to a Hermitian matrix representation of the multi-port antenna. The Hermitian matrix may be based on such multi-port antenna parameters such as power dissipation, power radiation, real-power flow, volumetric storage of electromagnetic energy, and/or volumetric dissipation of electromagnetic energy. The multi-port antenna yields orthogonal electromagnetic fields in volumes or surfaces of interest in response to the active feeding network excitation.Type: GrantFiled: December 7, 2010Date of Patent: November 19, 2013Assignee: Motorola Solutions, Inc.Inventors: Antonio Faraone, Carlo DiNallo, Renato Cicchetti
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Patent number: 8587494Abstract: Disclosed is an internal antenna that provides impedance matching for multiple bands. The antenna includes an impedance matching part, which in turn includes a first conductive element electrically coupled to a feeding point and a second conductive element electrically coupled to a ground, and at least one radiator electrically coupled to the first conductive element, where the first conductive element and the second conductive element of the impedance matching part are separated by a particular distance to perform coupling matching and are electrically coupled at a pre-designated position. Certain aspects of the present invention can be utilized to provide wide band characteristics in designing for multi-band applications, even for high-frequency bands.Type: GrantFiled: March 30, 2009Date of Patent: November 19, 2013Assignee: Ace Technologies Corp.Inventors: Jin-Woo Lee, Byong-Nam Kim, Joo-Sung Kim
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Publication number: 20130300626Abstract: An antenna apparatus includes: a first member ground-connected to a ground of a printed circuit board (PCB); a second member spaced from the first member in parallel, and configured to capacitive coupling-feed the first member so as to transmit and receive signals of a first frequency band; and a third member extending from the second member by a prescribed length, so as to have a bandwidth extending up to a second frequency band adjacent to the first frequency band.Type: ApplicationFiled: May 8, 2013Publication date: November 14, 2013Applicant: LG ELECTRONICS INC.Inventors: Jaegon LEE, Chisang YOU, Changil KIM
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Publication number: 20130285872Abstract: An antenna according to an embodiment includes a substrate; a radiator; a ground plane spaced apart from the radiator; a feeding pin for feeding an RF signal; a first branch reactance at one side of the feeding pin, the first branch reactance including one end connected to the substrate and an opposite end connected to the ground plane; and a second branch reactance at an opposite end of the feeding pin, the second branch reactance including one end connected to the substrate and an opposite end connected to the ground plane.Type: ApplicationFiled: April 26, 2013Publication date: October 31, 2013Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, LG INNOTEK CO., LTD.Inventors: Sae Won OH, Hyeong Dong KIM, Sin Hyung JEON, Bum Ki PARK, Jin Hyuk JANG
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Publication number: 20130285871Abstract: A transmission line feed for a surface wave medium having a dielectric substrate with an array of electrically conductive patches formed thereon. The transmission line feed includes a microstrip substrate, the microstrip substrate having a first permittivity which is lower than a second permittivity of the dielectric substrate of the surface wave medium, the microstrip substrate abutting against the dielectric substrate of the surface wave medium; a tapered microstrip disposed on the microstrip substrate, the tapered microstrip tapering from a relatively narrow end to a relatively wide end, the relative wide end terminating where the microstrip substrate abuts against the surface wave substrate; and an adapter for coupling a transmission line to the relatively narrow end of the tapered microstrip.Type: ApplicationFiled: September 23, 2011Publication date: October 31, 2013Applicant: HRL LABORATORIES, LLCInventor: Daniel J. Gregoire
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Patent number: 8570236Abstract: The antenna matching circuit control device with an antenna body includes a sensing module, a processing module, a power adjusting module and a frequency adjusting module. The sensing module senses an object that approaches the antenna body and outputs a sensing signal accordingly. The processing module is coupled to the sensing module and outputs a first control signal and a second control signal according to the sensing signal. The power adjusting module is coupled to the processing module and controls a power amplifier to couple with one of a plurality of first matching circuits according to the first control signal. The frequency adjusting module is coupled to the antenna body and the power adjusting module. The frequency adjusting module controls one of a plurality of second matching circuits to couple with one of the first matching circuits according to the second control signal.Type: GrantFiled: September 19, 2011Date of Patent: October 29, 2013Assignee: Asustek Computer Inc.Inventors: Chia-Hao Chang, Meng-Huan Wu, Kuo-Chu Liao
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Patent number: 8570227Abstract: A transmit antenna system includes active transmit electronics. A transistor has its gate coupled to a pulse generator for receiving the voltage pulses produced thereby. A coupled inductor is coupled to the transistor's drain. A tuning capacitor is coupled to the coupled inductor. An antenna is coupled to the coupled inductor and tuning capacitor. A choke inductor is coupled to the coupled inductor and a direct current voltage source. During each of the voltage pulses of the pulse generator, a resonant circuit is defined where parameters of the resonant circuit include resistance and capacitance of the antenna, capacitance of the tuning capacitor, inductance of the coupled inductor, and capacitance of the transistor. The resonant circuit is configured such that a resonant frequency thereof is equal to the pulse frequency of the pulse generator.Type: GrantFiled: September 15, 2011Date of Patent: October 29, 2013Assignee: The United States of America as represented by the Secretary of the NavyInventor: Paul M. Mileski
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Publication number: 20130271339Abstract: A passive element has an electrical length such that a resonance mode thereof is in a target frequency band, and first and second feed elements, each of which has an electrical length such that a resonance mode thereof is not in the target frequency band. The first feed element has a first coupling conductive part, and a first connecting conductive part, which has a continuous shape with the first coupling conductive part. The second feed element has a second coupling conductive part, and a second connecting conductive part, which has a continuous shape with the second coupling conductive part. The first coupling conductive part is disposed parallel and adjacent to the passive element. The second coupling conductive part is disposed parallel and adjacent to the passive element. The first connecting conductive part and the second connecting conductive part are disposed adjacent and parallel to each other.Type: ApplicationFiled: March 22, 2013Publication date: October 17, 2013Applicant: TAIYO YUDEN CO., LTD.Inventor: Jin MIKATA
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Publication number: 20130265207Abstract: Provided are an antenna-device substrate which is capable of flexibly adjusting multiple resonance frequencies and can also be made small and thin and an antenna device provided with the same. The present invention is provided with a substrate main body (2), first to third elements (3 to 5), a ground plane (GND), and a ground connection pattern (6), wherein the first element is provided with a feed point (FP) at the base end and extends while having a power feeding-side passive element (P0), a first connecting portion (C1), and an antenna element (AT); the second element extends while being connected to the first element via a second connecting portion (C2); and the third element extends while being connected to the first element via a third connecting portion (C3).Type: ApplicationFiled: December 15, 2011Publication date: October 10, 2013Applicant: MITSUBISHI MATERIAL CORPORATIONInventors: Shinsuke Yukimoto, Roy Saito
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Publication number: 20130257676Abstract: Presented is radio frequency antenna circuit for portable and/or compact electronic devices. Embodiments comprise an antenna connected to an unbalanced current feeding arrangement. The unbalanced feeding arrangement may generate common mode currents which increase the overall radiation resistance and efficiency of the antenna circuit.Type: ApplicationFiled: February 4, 2013Publication date: October 3, 2013Applicant: NXP B.V.Inventors: Anthony Kerselaers, Liesbeth Gommé
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Patent number: 8547289Abstract: A multimode antenna structure transmits and receives electromagnetic signals in a communications device.Type: GrantFiled: April 24, 2012Date of Patent: October 1, 2013Assignee: Skycross, Inc.Inventors: Mark T. Montgomery, Frank M. Caimi, Mark W. Kishler
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Publication number: 20130252678Abstract: Various embodiments of an antenna device for a wireless terminal are disclosed. The antenna device includes a radiator configured to be extracted from/retracted into the wireless terminal, a L-C lumped circuit, and a noise removing coil coupled between the radiator and the L-C lumped circuit, to attenuate noise introduced through the radiator. The radiator may be configured as a helical coil or at least one meandering printed pattern so as to reduce its overall length while maintaining a desired electrical length. In embodiments, the antenna device is useful for UHF/VHF frequency bands. Multi-band configurations are disclosed. In one embodiment, a stainless steel tube member substantially surrounds a helical coil, and the tube member operates at a lower frequency band than the helical coil.Type: ApplicationFiled: March 20, 2013Publication date: September 26, 2013Applicants: R.F. TECH CO., LTD., Samsung Electronics Co., Ltd.Inventors: Jun YOON, Jong-Un PARK
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Publication number: 20130249765Abstract: A wideband antenna is disclosed. The wideband antenna includes a ground element electrically connected to a ground, a feed element for feeding in a Radio-Frequency signal, a radiation element electrically connected to the feed element for radiating the Radio-Frequency signal, and at least one meta-material structure electrically connected between the radiation element and the ground element.Type: ApplicationFiled: August 15, 2012Publication date: September 26, 2013Inventor: Chi-Kang Su
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Patent number: 8543176Abstract: A mobile communication device has a number of selectable states, an antenna, and a communication circuit for transmitting and receiving communication signals. The mobile device also includes an impedance matching circuit having impedance matching networks. Each impedance matching network is associated with at least one of the selectable states of the mobile communication device and is configured to optimize the impedance match between the communication circuit and the antenna based on the selectable state of the mobile communication device with which the impedance matching network is associated. A switching network is included for coupling the antenna to the communication circuit together using one of the impedance matching networks based on a selected state of the mobile communication device.Type: GrantFiled: December 8, 2009Date of Patent: September 24, 2013Assignee: Cellco PartnershipInventors: Tom T. Daniel, Padmanabha Rajagopalan
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Patent number: 8543165Abstract: There is provided an information processing apparatus including a transmission processing section which performs short-range one-to-one communication with a communication partner device, a reception processing section, a received data processing section which acquires information displayed by the communication partner device by communication with the communication partner device, a display processing section which performs processing for displaying information acquired by the information acquisition section, and a display section which displays the information. According to such a configuration, it becomes possible to easily and visually recognize the information displayed on the communication partner device of a connection destination.Type: GrantFiled: May 12, 2011Date of Patent: September 24, 2013Assignee: Sony CorporationInventors: Naoki Matsubara, Toyohide Isshi, Aramu Mine
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Patent number: 8542157Abstract: An antenna module includes an antenna, a tunable matching circuit, a power detector and a control unit. The antenna comprises a feeding point. The tunable matching circuit, electrically connected between the antenna and the power detector and configured to provide a loading impedance, comprises a plurality of tunable impedance elements connected to each other and electrically connected to the feeding point as well. The power detector is electrically connected between the tunable matching circuit and a power amplifier and configured to detect a power indicator. The control unit, electrically connected to the tunable matching circuit and the power detector, is configured to read the power indicator and RSSI to generate a control signal for the tunable matching circuit, which consistently changes the loading impedance to achieve impedance matching.Type: GrantFiled: April 25, 2011Date of Patent: September 24, 2013Assignee: HTC CorporationInventors: Wei-Yang Wu, Chien-Hua Ma, Yen-Chuan Lin
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Patent number: 8538323Abstract: A method is presented for transmitting data in a satellite system having multiple spot beams comprising (1) sending a broadband signal in a forward direction from a gateway terminal to a communications satellite for relay to at least one subscriber terminal, (2) receiving the broadband signal at the communications satellite, wherein the communications satellite comprises a bent pipe repeater having a plurality of satellite-based transmission amplifiers, (3) using one of the plurality of satellite-based transmission amplifiers to amplify the broadband signal and no other broadband signal from the gateway terminal, to produce an amplified broadband signal, (4) sending the amplified broadband signal as one of a plurality of service spot beams to the at least one subscriber terminal, and (5) receiving and retrieving data from the amplified broadband signal at the at least one subscriber terminal.Type: GrantFiled: March 18, 2009Date of Patent: September 17, 2013Assignee: ViaSat, Inc.Inventors: Mark D. Dankberg, Mark J. Miller, Steven R. Hart, Kristi Jaska, Robert Wilson