Coupled To Plural Leadins Patents (Class 343/858)
  • Patent number: 10784590
    Abstract: An array antenna has a plurality of antenna unit cells arranged in rows and columns, or in another configuration. Each unit cell from the plurality of unit cells includes a circularly polarized radiator and a balun. The array antenna further includes a reactive element or a circuit element (such as a capacitor or resistor or even an inductor) on the circularly polarized radiator that is coupled an adjacent unit cell in one of the row and the column. A spacing distance between adjacent unit cells coupled via the circuit element that is at most half of a wavelength at a frequency maximum of the array antenna, wherein the spacing distance reduces likelihood of grating lobes.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: September 22, 2020
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Andrew C. Maccabe, James F. Fung, Randall R. Lapierre, Benjamin G. McMahon
  • Patent number: 10541672
    Abstract: An acoustic wave element of the present disclosures has a piezoelectric substrate and an acoustic wave resonator on a main surface of the piezoelectric substrate. The acoustic wave resonator is one being divided into a first IDT electrode and a second IDT electrode which are electrically connected to the first IDT electrode. The first IDT electrode includes a first comb-shaped electrode on the signal input side and a second comb-shaped electrode on the signal output side. The second IDT electrode includes a third comb-shaped electrode on the signal input side and a fourth comb-shaped electrode on the signal output side. The direction of arrangement of the third comb-shaped electrode and the fourth comb-shaped electrode from the third comb-shaped electrode toward the fourth comb-shaped electrode is different from the direction of arrangement from the first comb-shaped electrode toward the second comb-shaped electrode.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: January 21, 2020
    Assignee: KYOCERA Corporation
    Inventor: Tetsuya Kishino
  • Patent number: 9966930
    Abstract: The invention relates to a method for automatically adjusting a multiple-input-port and multiple-output-port tuning unit, for instance a multiple-input-port and multiple-output-port tuning unit coupled to the antennas of a radio transceiver using a plurality of antennas simultaneously. An automatic tuning system using this method has 4 user ports and 4 target ports, and comprises: 4 sensing units; a signal processing unit, the signal processing unit estimating real quantities depending on an impedance matrix seen by the target ports, using sensing unit output signals, the signal processing unit delivering a tuning instruction; a multiple-input-port and multiple-output-port tuning unit comprising adjustable impedance devices; and a tuning control unit receiving the tuning instruction and delivering tuning control signals to the multiple-input-port and multiple-output-port tuning unit, the reactance of each of the adjustable impedance devices being mainly determined by one or more of the tuning control signals.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: May 8, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Frédéric Broyde, Evelyne Clavelier
  • Patent number: 9838886
    Abstract: An active distributed antenna system and a relay unit thereof are disclosed.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: December 5, 2017
    Assignee: Comba Telecom Technology (Guangzhou) Co., Ltd.
    Inventors: Song Cao, Hailong Deng, Hui Zhang, Yuwen Zhang
  • Patent number: 9331734
    Abstract: A system on a chip (SoC) includes a transceiver comprising a transmitter and a receiver, wherein at least one of the transmitter and receiver has a configurable portion that can be configured to operate in a single ended mode and in a differential mode. Two interface pins are provided for coupling the transceiver to an antenna via a matching network, wherein the two interface pins are shareably coupled to the transmitter and to the receiver. A tunable capacitor is coupled to differential signal lines of the configurable portion, wherein the tunable capacitor is configured to be tuned to optimize impedance matching of the configurable portion for each mode of operation.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: May 3, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sudipto Chakraborty, David LeDeaut, Josef Einzinger, Jens Graul, Vadim Valerievich Ivanov
  • Patent number: 9331398
    Abstract: The disclosure discloses a dual-mode terminal antenna, comprising a main antenna comprising a main antenna of a first mode and a main antenna of a second mode, an auxiliary antenna comprising an auxiliary antenna of the first mode and an auxiliary antenna of the second mode, and an antenna bracket. The main and auxiliary antennas are fixed on a same antenna bracket, each of which is configured with a spring lea. When the antenna bracket is clasped on a main board, four spring leaves of the main and auxiliary antennas contact with four antenna feeding points on the main board respectively, An LC resonant circuit is disposed ahead of each antenna feeding point, and four LC resonant circuits resonate at a working frequency band of the antenna corresponding to the antenna feeding point with which each said LC resonant circuits connects, respectively.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: May 3, 2016
    Assignee: ZTE CORPORATION
    Inventor: Hui Jiang
  • Patent number: 9088334
    Abstract: A system on a chip (SoC) includes a transceiver comprising a transmitter and a receiver, wherein at least one of the transmitter and receiver has a configurable portion that can be configured to operate in a single ended mode and in a differential mode. Two interface pins are provided for coupling the transceiver to an antenna via a matching network, wherein the two interface pins are shareably coupled to the transmitter and to the receiver. A tunable capacitor is coupled to differential signal lines of the configurable portion, wherein the tunable capacitor is configured to be tuned to optimize impedance matching of the configurable portion for each mode of operation.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 21, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sudipto Chakraborty, David LeDeaut, Josef Einzinger, Jens Graul, Vadim Valerievich Ivanov
  • Patent number: 8952861
    Abstract: A multi-band antenna system for MIMO applications is adapted to provide high isolation between antennas across a wide range of frequencies. Multiple Isolated Magnetic Dipole (IMD) antennas are co-located and connected with a feed network that can include switches that adjust phase length for transmission lines connecting the antennas. Filtering is integrated into the feed network to improve rejection of unwanted frequencies. Filtering can also be implemented on the antenna structure. Either one or multi-port antennas can be used.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: February 10, 2015
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Sebastian Rowson, Jeffrey Shamblin, Young Cha
  • Publication number: 20150009086
    Abstract: An active antenna system with multiple feed ports and a control method of the active antenna system are provided. The active antenna system includes an antenna radiation element, a first feed port and a second feed port. If the first control circuit is in a close state, the first feed port and a first physical position of the antenna radiation element are connected with each other, so that a signal is fed to the antenna radiation element through the first feed port and the first physical position. If the second control circuit is in the close state, the second feed port and a second physical position of the antenna radiation element are connected with each other, so that the signal is fed to the antenna radiation element through the second feed port and the second physical position.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 8, 2015
    Inventor: Ming-Hao Yeh
  • Publication number: 20140368401
    Abstract: A communication device is provided with a band elimination filter that has one end connected to an antenna terminal, and a first multiplexer that is connected to the other end of the band elimination filter. The band elimination filter is configured to eliminate signals of a frequency band that is different from the frequencies of signals transmitted and received in the first multiplexer, and is configured from a filter circuit that includes a bulk wave element.
    Type: Application
    Filed: September 3, 2014
    Publication date: December 18, 2014
    Inventors: Takashi MIYAKE, Koji NOSAKA, Ryo NAKAGAWA, Haruki KYOUYA
  • Patent number: 8902113
    Abstract: Tunable duplexers and related methods are disclosed for use in communications networks. A tunable radiating duplexer can include a first antenna comprising a first variable capacitor and a second antenna comprising a second variable capacitor.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 2, 2014
    Assignee: Wispry, Inc.
    Inventor: Arthur S. Morris, III
  • Publication number: 20140327587
    Abstract: A multi band antenna device which can simultaneously design a first frequency band antenna and a second frequency band antenna within one wireless communication device is provided. The multi band antenna device includes a first band antenna unit that communicates a first frequency band signal, a first band driving circuit unit that is connected to the first band antenna unit and that is configured to perform signal processing of a corresponding first frequency band signal communicated in the first band antenna unit, a second band driving circuit unit that is connected to the first band antenna unit, and that is configured to perform signal processing of a second frequency band signal which has a frequency that is lower than a frequency of the first frequency band signal, and a first inductor unit that is connected between one end of the first band antenna unit and the second band driving circuit unit, and that is configured to serve as an inductor.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Youn-Su WON
  • Patent number: 8866687
    Abstract: A modular feed network is provided with a segment base provided with a feed aperture, a corner cavity at each corner and a tap cavity at a mid-section of each of two opposite sides. A segment top is provided with a plurality of output ports. The segment top is dimensioned to seat upon the segment base to form a segment pair. the segment base provided with a plurality of waveguides between cavities of the segment base. The modular feed network is configurable via a range of feed, bypass and/or power divider taps seated in the apertures and/or cavities to form a waveguide network of varied numbers of output ports by routing across one or more of the segment tops. For example, the modular feed network may comprise 1, 4 or 16 of the segment bases retained side to side.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 21, 2014
    Assignee: Andrew LLC
    Inventors: Claudio Biancotto, Christopher D Hills, Alexander Thomson
  • Publication number: 20140300525
    Abstract: Methods for antenna switch modules are disclosed. In certain implementations, a method of making an antenna switch module is provided. The method includes providing a package substrate implemented to receive one or more electrical components, attaching a silicon on insulator (SOI) die to the package substrate, and providing an integrated filter. The SOI die includes a capacitor and a switch coupled to a plurality of radio frequency (RF) signal paths. The integrated filter filters an RF signal received on a first RF signal path of the plurality of RF signal paths, and includes the capacitor of the SOI die and an inductor.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Inventors: Jong-Hoon Lee, Chuming Shih
  • Patent number: 8830131
    Abstract: The present invention is an integrated antenna assembly which allows for integration of a first radio system and a second radio system with the integrated antenna assembly. The integrated antenna assembly may include a coupler for providing sufficient isolation between the first radio system (ex.—a vertical polarization system) and the second radio system (ex.—a horizontal polarization system). The integrated antenna assembly may further include a common mode choke connected between a first antenna element and a second antenna element of the integrated antenna assembly. The coupler may produce a common mode based on signals received from the vertical polarization system and may also produce a differential mode based on signals received from the horizontal polarization system. The common mode choke may be configured for: preventing transmission of common mode currents from the first antenna element to the second antenna element; and being transparent to differential mode current flow.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Rockwell Collins, Inc.
    Inventors: Jonathan P. Doane, Mark M. Mulbrook, Brian J. Herting
  • Publication number: 20140210684
    Abstract: A module includes: a duplexer including an antenna terminal; a first wiring connecting the antenna terminal to an antenna; a second wiring coupled to the antenna terminal without the first wiring; and an inductor coupled to the second wiring.
    Type: Application
    Filed: November 27, 2013
    Publication date: July 31, 2014
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Hiroshi HARA
  • Publication number: 20140169235
    Abstract: A circuit for a wideband electrical balance duplexer (EBD) may include a first impedance element and a second impedance coupled between a first and a second node and a second and a third node of the bridge circuit, respectively. An antenna may be coupled between the first and a fourth node of the bridge circuit to receive and transmit RF signals. A balancing network may provide an impedance substantially matching an impedance of the antenna. The balancing network may be coupled between the third and the fourth node of the bridge circuit. The first or the second impedance elements may facilitate balancing the bridge circuit. One or more output nodes of a transmit path may be coupled to an input node of the bridge circuit. One or more input nodes of a receive path may be coupled between the second and the fourth node of the bridge circuit.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Mohyee Mikhemar, Hooman Darabi
  • Publication number: 20140145898
    Abstract: A high-frequency module includes a semiconductor chip device that is mounted on an external circuit substrate by wire bonding. A switch forming section, a power amplifier forming section and a low noise amplifier forming section, realized by a group of FETs, which are active elements, are formed in the semiconductor chip device. Flat plate electrodes, which form capacitors are formed in the semiconductor chip device. Conductor wires that connect the external circuit substrate and the semiconductor chip device function as inductors. A group of passive elements that includes inductors and capacitors is formed. As a result, a high-frequency module that can be reduced in size while still obtaining the required transmission characteristic is realized.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Daisuke TOKUDA
  • Patent number: 8674888
    Abstract: An integrated circuit includes a plurality of circuits including a plurality of millimeter wave interfaces for communicating data between the plurality of circuits via millimeter wave RF signaling. A power supply line supplies at least one power supply signal to the plurality of circuits. The power supply line includes a plurality of antenna elements to facilitate the communicating of first data between the plurality of circuits via the millimeter wave RF signaling.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: March 18, 2014
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20140049439
    Abstract: A compact antenna element and assembly using a directly fed and electromagnetically coupled step probe element for ultra wideband application. It achieves very good impedance match, isolation and pattern stability across a wide frequency band. The compact ultra wideband radiating element covers all known radio frequency bands in the mobile base station industry to date.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Inventor: Jimmy HO
  • Publication number: 20130293438
    Abstract: A high-frequency module includes a switch IC and a matching circuit. The high-frequency module includes a multilayer body. The switch IC and an inductor of the matching circuit are mounted on a top surface of the multilayer body. A top-surface land electrode on which a common terminal of the switch IC is mounted is connected to one end of a wiring conductor through a via-conductor. The other end of the wiring conductor is connected to a top-surface land electrode on which a terminal electrode at one end of the inductor is mounted, through a via-conductor. An end portion of the inductor on the side connected to the common terminal of the switch IC is disposed near the common terminal. Thus, the length of the wiring conductor is shortened and a parasitic capacitance is decreased.
    Type: Application
    Filed: April 16, 2013
    Publication date: November 7, 2013
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takanori UEJIMA
  • Publication number: 20130271340
    Abstract: Systems and methods are disclosed for shared AM/FM air loop antennas that may be advantageously implemented to provide a AM/FM receiver system with a single common air loop antenna for receiving both AM and FM channels, thus eliminating the need for additional materials and electronics associated with provision of a separate FM pigtail antenna and FM antenna jack for connection of same. The shared AM/FM air loop antennas may be connected to a radio device having antenna connections.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: Ligang Zhang, Chengzhou Lin
  • Patent number: 8542158
    Abstract: A multi-band antenna system for MIMO applications is adapted to provide high isolation between antennas across a wide range of frequencies. Multiple Isolated Magnetic Dipole (IMD) antennas are co-located and connected with a feed network that can include switches that adjust phase length for transmission lines connecting the antennas. Filtering is integrated into the feed network to improve rejection of unwanted frequencies. Filtering can also be implemented on the antenna structure. Either one or multi-port antennas can be used.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 24, 2013
    Assignee: Ethertronics, Inc.
    Inventors: Sebastian Rowson, Jeffrey Shamblin, Laurent Desclos, Young Cha
  • Publication number: 20130154894
    Abstract: A communications apparatus. The apparatus comprises a transmitting antenna, a receiving antenna, a first serial configuration of a first power amplifier and a first matching network for producing a first signal, the first power amplifier operating in a first frequency band, a second serial configuration of a second power amplifier and a second matching network for producing a second signal, the second power amplifier operating in a second frequency band, a first switching element for switchably supplying the first signal or the second signal to the transmitting antenna, a first and a second receiver; and a second switching element for switchably directing a signal received at the receiving antenna to the first receiver or the second receiver.
    Type: Application
    Filed: October 5, 2012
    Publication date: June 20, 2013
    Inventors: Frank M. Caimi, Gregory A. O'Neill, JR., Ping Chen, Young-Min Jo
  • Patent number: 8466843
    Abstract: An integrated antenna system is disclosed which may include a first antenna sub-system. The integrated antenna system may further include a second antenna sub-system. The first antenna sub-system may be a Ku-band antenna sub-system. The second antenna sub-system may be one of: an L-band antenna sub-system or a C-band antenna sub-system. The second antenna sub-system may be tightly/seamlessly integrated with the first antenna sub-system, thereby providing a system with integrated antenna bands which provides omni-directional coverage.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 18, 2013
    Assignee: Rockwell Collins, Inc.
    Inventors: Jonathan P. Doane, Brian J. Herting, Lee M. Paulsen, Jeremiah D. Wolf, Wajih A. El Sallal
  • Publication number: 20130147678
    Abstract: A high-frequency module includes first and second demultiplexers and a band elimination filter. The first and second demultiplexers include common terminals, transmission filters, and reception filters, respectively. In the band elimination filter, a demultiplexer-side terminal is connected to the common terminal of the first demultiplexer. The band elimination filter includes a first pass band, and a second pass band and a stop band that are located adjacent to each other within the first pass band. The band elimination filter is configured so that the second pass band includes the pass band of each of the transmission filter and the reception filter in the first demultiplexer and the stop band includes the pass band of the transmission filter in the second demultiplexer.
    Type: Application
    Filed: February 7, 2013
    Publication date: June 13, 2013
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: MURATA MANUFACTURING CO., LTD.
  • Publication number: 20130127683
    Abstract: Multi-use antenna techniques are described. In one or more implementations, a device includes a single fixed radiating structure, a first branch coupled to the single fixed radiating structure to tune to a first frequency range to support a first wireless signal technique, and a second branch coupled to the single fixed radiating structure to tune to a second frequency range to support a second wireless signal technique, the second frequency range being different than the first frequency range.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Peter S. Hoang, Robert J. Hollyer, Jedd A. Perry
  • Publication number: 20130120216
    Abstract: An antenna system comprises a plurality of conductors, a combiner, and a plurality of loads. The combiner has an output port. The plurality of loads connects the plurality of conductors to each other in line. The plurality of loads has an impedance equal to a desired impedance for the output port. The combiner combines power received by the plurality of loads at the output port of the combiner.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 16, 2013
    Applicant: THE BOEING COMPANY
    Inventor: THE BOEING COMPANY
  • Publication number: 20120235877
    Abstract: Distributed band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Inventors: STEVE BEAUDIN, CHUN-YUN JIAN, SOMSACK SYCHALEUN
  • Patent number: 8269686
    Abstract: 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: Grant
    Filed: November 26, 2008
    Date of Patent: September 18, 2012
    Assignee: UTI Limited Partnership
    Inventors: Ronald H. Johnston, Elise Fear
  • Patent number: 8238824
    Abstract: A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: August 7, 2012
    Assignee: Sony Corporation
    Inventor: Takanori Washiro
  • Publication number: 20120139813
    Abstract: The invention refer to a wireless handheld or portable device including an antenna system (250) capable of operation in a first frequency region and in a second frequency region, wherein the highest frequency of the second frequency region is lower than the lowest frequency of the first frequency region, the antenna system (250) comprising an antenna structure (260) including: an antenna element (251) having a first connection point (253a) and a second connection point (253b); a ground plane layer (202) having at least one connection point (204); a first internal port (261), said first port being defined between the first connection point (253a) of the antenna element (251) and one of the at least one connection point (204) of the ground plane layer (202); and a second internal port (262), said second port (262) being defined between the second connection point (253b) of the antenna element (251) and one of the at least one connection point (204) of the ground plane layer (202); the antenna system further com
    Type: Application
    Filed: June 17, 2010
    Publication date: June 7, 2012
    Inventors: Jaume Anguera, Carmen Borja, Cristina Picher, Aurora Andujar
  • Publication number: 20120075158
    Abstract: An antenna module is provided and includes two feeding parts and having different frequencies of feeding on a circuit board. A first feeding radiation electrode is connected to the feeding part on a lower frequency side and performs an antenna operation. A second feeding radiation electrode is connected to the feeding part on a higher frequency side and performs an antenna operation. The first and second feeding radiation electrodes electrically connected, and the second feeding radiation electrode is smaller than and on the first feeding radiation electrode with an insulating part therebetween. The first feeding radiation electrode is configured to serve as an electrode that also performs an antenna operation of the second feeding radiation electrode, in such a manner that the second feeding radiation electrode performs an antenna operation in which the second feeding radiation electrode and the first feeding radiation electrode are electrically coupled to each other.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Kazunari KAWAHATA
  • Publication number: 20120063368
    Abstract: A communication system transmits signals having frequencies that lie within a transmission band and receives signals having frequencies that lie within a reception band. The system includes a duplexer and an antenna. The duplexer includes a transmission branch and a reception branch. The transmission branch includes a transmission filter, a transmission phase shifting network and a transmission matching network. The reception branch includes a reception filter, a reception phase shifting network and a reception matching network. The transmission matching network and the reception matching network have predominately constant phase shifts over frequencies within the reception band and within the transmission band, respectively. The antenna is coupled to the transmission matching network and to the reception matching network, and shows a predominantly reactance-only impedance variation over frequencies in the transmission band and over frequencies in the reception band.
    Type: Application
    Filed: March 1, 2010
    Publication date: March 15, 2012
    Applicant: EPCOS AG
    Inventor: Kevin R. Boyle
  • Publication number: 20110254749
    Abstract: An antenna element has first and second feed ports, and is simultaneously excited through the feed ports so as to simultaneously operate as first and second antenna portions respectively, associated with the feed ports. The antenna element is excited at one of a first frequency and a second frequency higher than the first frequency. An antenna apparatus is provided with: a slit that provides isolation between the feed ports; a trap circuit that allows the slit to provide isolation at the first or second frequency when the antenna element is excited at the first or second frequency; and a reactance element that shifts a frequency at which the slit provides isolation between the feed ports, to the first frequency, when the antenna element is excited at the first frequency.
    Type: Application
    Filed: May 25, 2010
    Publication date: October 20, 2011
    Inventors: Satoru Amari, Atsushi Yamamoto, Tsutomu Sakata
  • Patent number: 8023890
    Abstract: A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an EFC antenna configured to transmit the RF signal as an electrostatic field or an induced electric field; a receiver including an EFC antenna and a reception circuit unit configured to receive and process the RF signal received by the EFC antenna; and an impedance snatching unit configured to make an impedance of the EFC antenna of the transmitter equal to an impedance of the EFC antenna of the receiver. The RF signal is transmitted by electric-field coupling between the EFC antennas, facing each other, of the transmitter and the receiver.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: September 20, 2011
    Assignee: Sony Corporation
    Inventor: Takanori Washiro
  • Patent number: 8010160
    Abstract: A transmitter unit which is disposed between the first base station and the antenna arrangement contains a device for aggregate signal forming, a D/A converter and a transmission power amplifier. The first base station is connected on the output side to the device for aggregate signal forming such that a digital output signal of the first base station reaches the device for aggregate signal forming as the first input signal. The device for aggregate signal forming is connected on the output side to the antenna arrangement via the D/A converter and the transmission power amplifier such that an aggregate signal formed by the device for sum forming reaches the antenna arrangement, the aggregate signal being formed from the first digital input signal and a second digital input signal connected to the device for aggregate signal forming.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: August 30, 2011
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventor: Armin Splett
  • Publication number: 20110043428
    Abstract: An antenna duplexer includes a transmission filter and a reception filter both coupled with an antenna terminal. A pass band of the transmission filter is lower than a pass band of the reception filter. The transmission filter includes a first series resonator coupled with a first terminal, a second series resonator connected to the first series resonator at a first node, a first parallel resonator connected to a first port of the first series resonator, a second parallel resonator connected to a first node and the first parallel resonator at a second node, a third parallel resonator connected to the first node, a fourth parallel resonator connected to the third parallel resonator at a third node, a first inductance element coupled with the second node and a ground, and a second inductance element coupled with the third node and the ground. The first and second parallel resonators and the first inductance element produce an attenuation pole at a frequency lower than a pass band of the transmission filter.
    Type: Application
    Filed: November 20, 2009
    Publication date: February 24, 2011
    Inventors: Joji Fujiwara, Tetsuya Tsurunari, Hiroyuki Nakamura
  • Patent number: 7894770
    Abstract: A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventor: Takanori Washiro
  • Publication number: 20110037677
    Abstract: A method for processing communication signals is disclosed and may include communicating radio frequency signals via an antenna coupled to primary windings of a radio frequency transformer. Secondary windings of the radio frequency transformer may be utilized for receiving and/or transmitting the communicated radio frequency signals. The receiving and the transmitting may operate in time division duplex mode. A number of windings between a pair of connector terminals of the secondary windings used for the transmitting of the radio frequency signals, may be less than or equal to a number of windings of the primary windings. A number of windings between a pair of connector terminals of the secondary windings used for the receiving of the radio frequency signals, may be greater than or equal to a number of windings of the primary windings.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 17, 2011
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 7890053
    Abstract: A communication system includes a transmitter including a transmission circuit unit that generates an RF signal for transmitting data and an electric-field-coupling antenna that transmits the RF signal as an electrostatic field, a receiver including an electric-field-coupling antenna and a reception circuit unit that subjects an RF signal received by the electric-field-coupling antenna to reception processing, and a surface-wave propagating means for providing a surface wave transmission line made of a conductor that propagates a surface wave radiated from the electric-field-coupling antenna of the transmitter along a surface of the surface wave transmission line.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: February 15, 2011
    Assignee: Sony Corporation
    Inventor: Takanori Washiro
  • Patent number: 7843992
    Abstract: In one embodiment, a circuit is provided that includes: an impulse generator operable to provide a pulse train; a pulse position modulator having a splitting junction configured to receive the pulse train, the pulse position modulator including a plurality of n transmission lines, wherein n is an integer, the n transmission lines being selectably coupled in parallel between the splitting junction and a combining junction, the impulse generator driving each transmission line having a unique delay such that if the transmission line is selected, each pulse received at the splitting junction is uniquely delayed into a delayed pulse, whereby if all the transmission lines are selected, each pulse received at the splitting junction is uniquely delayed into a corresponding plurality of n delayed pulses; and a controller operable to select the transmission lines responsive to received words of n bits in length, each word arranged from a first bit to an nth bit, and wherein the transmission lines are arranged from a fi
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: November 30, 2010
    Inventor: Farrokh Mohamadi
  • Patent number: 7831230
    Abstract: A terminal is provided for selectively communicating in at least two frequency bands. The terminal includes an antenna transducer including a first port and a second port, where the antenna transducer is capable of selectively transducing first radio signals (e.g., low power radio frequency (LPRF) signals) to and/or from the first port, and/or second radio signals (e.g., global positioning system (GPS) signals) to and/or from the second port. In this regard, the antenna transducer is capable of transducing first radio signals such that an impedance at the second port approaches a short circuit or an open circuit, and capable of transducing second radio signals such that an impedance at the first port approaches an open circuit. An associated communication assembly and method for selectively communicating in at least two frequency bands are also provided.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: November 9, 2010
    Assignee: Nokia Corporation
    Inventors: David Nail, George Hutcheson
  • Patent number: 7830989
    Abstract: In one embodiment, a wafer scale radar antenna module (WSAM) is provided that includes: a substrate; a plurality of antennas adjacent the substrate; an RF feed network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrate, wherein the RF feed network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF feed network, the resonant network oscillates to provide a globally synchronized RF signal to a plurality of integrated antenna circuits, wherein each integrated antenna circuits includes a corresponding subset of antennas from the plurality of antennas, and wherein each integrated antenna circuit includes a pulse shaping circuit having a plurality of selectable delay paths, each pulse shaping circuit being configured to rectify and level shift a version of the globally synchronized signal through selected ones of the selectable delay paths
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 9, 2010
    Inventor: Farrokh Mohamadi
  • Publication number: 20100271280
    Abstract: A double balun dipole antenna element includes a dielectric substrate having a first surface and an opposing second surface, a pair of coplanar Marchand baluns positioned in a mutually antiphase configuration on the first and second surfaces, and at least one feed line connected to the pair of Marchand baluns. A doubly polarized antenna element includes a pair of orthogonally interleaved double balun dipole antenna elements, which can be further configured into an array of such antenna elements.
    Type: Application
    Filed: September 12, 2008
    Publication date: October 28, 2010
    Applicant: The Government of the US, as represented by the Secretary of the Navy
    Inventor: William R. Pickles
  • Publication number: 20100253587
    Abstract: An antenna for reception of satellite radio signals emitted circularly in the direction of rotation of polarization has a conductive base surface, an antenna connection point, an antenna element connection point and at least two antenna elements. The first antenna element is a loop antenna formed as a conductor loop disposed substantially parallel but spaced apart from the base surface. The loop antenna has a plurality of capacitors disposed along the conductor loop. The antenna connection point is coupled to at least one interruption of the loop antenna. This connection point is configured to feed a ring current into the loop antenna. There is also at least one additional antenna element extending between the antenna element connection point and the loop antenna.
    Type: Application
    Filed: March 3, 2010
    Publication date: October 7, 2010
    Applicant: DELPHI DELCO ELECTRONICS EUROPE GMBH
    Inventors: Stefan Lindenmeier, Heinz Lindenmeier, Jochen Hopf, Leopold Reiter
  • Publication number: 20100188308
    Abstract: Antennas that can transceive signals in an elliptically-polarized, omni-directional manner are described. In an example embodiment, an antenna comprises two elements proximally located to each other at a predetermined distance, such that two orthogonally-polarized omni-directional electromagnetic waves are tranceived. In a further example, the two elements are supported by an internal printed circuit, the printed circuit including conductors configured to supply a feed to the elements, which may be contained within a radome. Alternate embodiments comprise a plurality of elements of varying lengths.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 29, 2010
    Applicant: LHC2 INC
    Inventors: Royden M. Honda, Robert J. Conley
  • Patent number: 7733276
    Abstract: Embodiments of an antenna system for notebook, laptop and portable computers and methods for communicating in multiple wireless systems are generally described herein. Other embodiments may be described and claimed. In some embodiments, a notebook computer comprises a plurality of transceivers, a plurality of antennas coupled to the transceivers with coaxial cables, and signal separation circuitry coupled to at least one of the coaxial cables to allow the at least one coaxial cable to be shared by two or more of the transceivers.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: June 8, 2010
    Assignee: Intel Corporation
    Inventors: Shmuel Levy, David G. Leeper
  • Publication number: 20100019981
    Abstract: An antenna feed system having a single corrugated horn wave guide ports in one of the corrugations, a combiner network which receives signals at approximately 20 GHz from the four wave guide ports and provides sum and difference signals, and a transducer which provides transmit signals at approximately 30 GHz and approximately 44 GHz to a rear end of the single horn.
    Type: Application
    Filed: May 24, 2004
    Publication date: January 28, 2010
    Inventors: Ahmet D. Ergene, Michael Zarro
  • Publication number: 20090256773
    Abstract: A dual polarized antenna element having improved antenna isolation is disclosed by the present invention. The antenna element includes a first feeder for feeding the antenna element in a first polarization direction, and a second feeder for feeding the antenna element in a second polarization direction. According to the present invention, a compensation line is arranged between the first and the second feeders for compensating for an imbalance caused by an essentially capacitive coupling between the first and second feeders. The compensation line is connected to the first and second feeders in close proximity to a radiating part of said antenna element, and has a short electrical length ? and a high impedance relative to an impedance of the first and second feeders, respectively, thereby giving the compensation line an essentially inductive character.
    Type: Application
    Filed: April 10, 2009
    Publication date: October 15, 2009
    Inventor: Bjorn Lindmark