With Radiation Suppressor (e.g., Shield) Patents (Class 343/851)
  • Patent number: 10971798
    Abstract: A semiconductor device package is provided that includes a substrate, a first support structure disposed on the substrate and a first antenna. The first support structure includes a first surface spaced apart from the substrate by a first distance. The first antenna is disposed above the first surface of the first support structure. The first antenna has a first surface, a second surface opposite the first surface and a third surface extending from the first surface to the second surface, wherein the first surface and the second surface of the first antenna are exposed.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: April 6, 2021
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Guo-Cheng Liao, Yi Chuan Ding
  • Patent number: 10903548
    Abstract: An antenna module includes an antenna substrate having a first surface and a second surface disposed to oppose each other, and including a substrate wiring layer having a first antenna pattern positioned in a first region, a second antenna pattern disposed in a second region adjacent to one side, and first and second feed patterns connected to the first and second antenna patterns, respectively; and a semiconductor package including a connection structure disposed on the second surface except for an area overlapping with the second region of the antenna substrate and redistribution layers electrically connected to the substrate wiring layer, and at least one semiconductor chip having connection pads connected to the redistribution layers. A region overlapping with the second feed pattern in each of the plurality of redistribution layers is provided as an opened region.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Yong Koon Lee, Jin Su Kim
  • Patent number: 10686248
    Abstract: A wireless communication device is provided. The wireless communication device comprises a circuit board and a loop antenna. The circuit board includes a wireless communication circuit. The wireless communication circuit includes a signal transmitting end and a ground terminal. The loop antenna includes a conductive loop, a feed portion, a first short-circuit portion and a second short-circuit portion. The feed portion is connected between the conductive loop and the signal transmitting end. The first short-circuit portion and the second short-circuit portion are connected between the conductive loop and the ground terminal, respectively.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 16, 2020
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Cheng-Tse Lee, Yi-Ting Hsieh, Saou-Wen Su
  • Patent number: 10349200
    Abstract: A system comprises multiple speakers and a control unit. The speakers and the control unit are arranged to locate one another and to determine distances and preferably locations relative to one another, for example based on signal power measurements. Also a user position may be determined via a device close to the user, like a telephone or a watch. This information is used for processing audio data for rendering for optimal user experience. Based on locations of speakers relative to the user, dedicated functionality may be assigned to a speaker. The audio data to be reproduced may be processed and at least parts thereof may be assigned to a speaker, depending on the assigned functionality. Speaker modules may be added and assigned a functionality on the go. Capability for processing of audio and position data may be performed by any of a user device, speaker module or dedicated control module.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: July 9, 2019
    Assignee: OUBORG & GATIN IP B.V.
    Inventors: Jorn Ouborg, Sten Ouborg, Florent Gatin
  • Patent number: 10211524
    Abstract: Systems and methods for enhanced antenna isolation are disclosed. An example antenna isolation system includes a first antenna element of an antenna array configured to transmit or receive wireless transmissions, a second antenna element of the antenna array adjacent to the first antenna element in the antenna array, and a scattering structure disposed substantially between the first and second antenna elements. The scattering structure is configured to reduce electromagnetic coupling between the first and second antenna elements by, at least in part, directing electromagnetic radiation coupled through the first antenna element away from the second antenna element.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventor: Behzad Tavassoli Hozouri
  • Patent number: 10181654
    Abstract: A millimeter wave transceiver including a plate forming an interposer having its upper surface supporting an interconnection network and having its lower surface intended to be assembled on a printed circuit board by bumps; an integrated circuit chip assembled on the upper surface of the interposer; antennas made of tracks formed on the upper surface of the interposer; and reflectors on the upper surface of the printed circuit board in front of each of the antennas, the effective distance between each antenna and the reflector plate being on the order of one quarter of the wavelength, taking into account the dielectric constants of the interposed materials.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 15, 2019
    Assignee: STMicroelectronics SA
    Inventors: Jean-Francois Carpentier, Sébastien Pruvost, Patrice Garcia, Pierre Busson, Pierre Dautriche
  • Patent number: 9799942
    Abstract: Embodiments of the present invention provide a multi-band active antenna, including a broadband antenna, a combiner, and an active module, where a concave window is disposed on an enclosure frame of the broadband antenna, and a first port of the broadband antenna is disposed in the window; the combiner is removably connected to the window, and a first port of the combiner is connected to the first port of the broadband antenna; and a mounting kit is disposed on the enclosure frame of the broadband antenna, and the active module is removably connected to the mounting kit and a first port of the active module is connected to a second port of the combiner by a conducting wire.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 24, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tao Pu, Honggang Xu, Yujiang Wu, Guopei Li
  • Patent number: 8912971
    Abstract: A ladder type filter includes series resonators S1˜S4 connected in series between an input terminal In and an output terminal Out, parallel resonators P1˜P3 connected in parallel between the input terminal In and the output terminal Out, a resonator RP connected in series with the series resonators S1˜S4 between the input terminal and the output terminal, the resonator RP having a resonance frequency lower than resonance frequencies of the series resonators S1˜S4, and an inductor Lp connected in parallel with the resonator. According to the present ladder filter, signals having frequencies away from the pass band can be suppressed by an attenuation pole formed by the inductor. It is further possible to suppress the insertion loss in the pass band by the resonator.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: December 16, 2014
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Masafumi Iwaki, Tokihiro Nishihara, Masanori Ueda
  • Patent number: 8803107
    Abstract: The invention relates to a material that absorbs electromagnetic waves, characterized in that it includes at least one textile layer printed using at least one conductive ink in accordance with at least one pattern including printed areas and non-printed areas in an arrangement suitable for a corresponding range of absorption frequencies.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: August 12, 2014
    Inventors: Marc Delpech, Christian Lhomme
  • Patent number: 8803755
    Abstract: This disclosure relates to chokes for suppressing undesired signals such as such as common mode electromagnetic interference (EMI) and/or radio frequency interference (RFI). The chokes can include an electro-conductive sleeve disposed over an electrical cable and the sleeve can be configured to suppress an undesired signal. In some embodiments, the electro-conductive sleeve and have a half-wave sleeve, which can be electrically open at both ends. Additional insulating material can be included between the electrical cable and the sleeve. Multiple electro-conductive sleeves and be disposed substantially concentrically over the cable. The chokes can be configured to reduce passive intermodulation (PIM). The sleeve can have a longitudinal slot that extends the length of the sleeve. The sleeve can include multiple slots that separate the sleeve into multiple panels, which can be configured to suppress different signals.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: August 12, 2014
    Assignee: Venti Group, LLC
    Inventors: William Ernest Payne, Richard Smith
  • Publication number: 20140152515
    Abstract: The antenna device includes a first antenna 11 that includes a first ground terminal 12; a second antenna 18 that includes a second ground terminal 20; a ground conductor 28 to which the first antenna 11 is connected through the first ground terminal 12 and the second antenna 18 is connected through the second ground terminal 20; and a phase shifter 24 that controls a phase difference between a first current ie1 and a second current ie2. The phase shifter 24 controls the phase difference between the first current ie1 and the second current ie2 so that the first current ie1 and the second current ie2 have components to cancel each other.
    Type: Application
    Filed: January 26, 2012
    Publication date: June 5, 2014
    Inventors: Junnei Baba, Tetsuya Ashizuka, Ichiro Komaki
  • Patent number: 8698698
    Abstract: A portable electronic device is provided that is capable of reducing the degradation in the characteristic of an antenna caused by the orientation direction of the antenna being fixed. The device includes a circuit board disposed in the vicinity of an antenna, a conductive switch terminal that is provided to the circuit board and detects an operation to an operation unit, a reference potential part provided to the circuit board to be opposite to the switch terminal, a conductive part provided to the circuit board to be opposite to the antenna, and a switch unit capable of switching whether the reference potential part and the conductive part are electrically connected.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: April 15, 2014
    Assignee: Kyocera Corporation
    Inventor: Daisuke Togashi
  • Patent number: 8665069
    Abstract: An RFID tag comprising an antenna assembly, including a shielding layer comprising an electromagnetic shielding material, a radio frequency loop antenna, and a spacer comprising a spacer material having a permittivity less than about 2 interposed between the antenna and the shielding layer is disclosed. Also disclosed are methods of manufacturing such an RFID tag. Also disclosed is the use of such an RFID tag for use in identifying a vehicle, for example in the context of fuel-purchase authorization.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: March 4, 2014
    Assignee: Petratec International Ltd.
    Inventors: Shimon Weitzhandler, Yoav Vilnai, Ilay Levie, Avi Yalon
  • Publication number: 20130307738
    Abstract: The antenna device includes a first antenna 11 that includes a first ground terminal 12; a second antenna 18 that includes a second ground terminal 20; a ground conductor 28 to which the first antenna 11 is connected through the first ground terminal 12 and the second antenna 18 is connected through the second ground terminal 20; and a phase shifter 24 that controls a phase difference between a first current ie1 and a second current ie2. The phase shifter 24 controls the phase difference between the first current ie1 and the second current ie2 so that the first current ie1 and the second current ie2 have components to cancel each other.
    Type: Application
    Filed: January 26, 2012
    Publication date: November 21, 2013
    Inventors: Junnei Baba, Tetsuya Ashizuka, Ichiro Komaki
  • Patent number: 8576126
    Abstract: A dipole antenna includes interconnected first and second grounding portions, first and second connecting portions bending respectively from the first and second grounding portions in a substantially same direction, first and second extending portions extending respectively from the first connecting portion, and third and fourth extending portions extending respectively from the second connecting portion. The second extending portion is disposed closer to the first grounding portion than the first extending portion. The fourth extending portion is disposed closer to the second grounding portion than the third extending portion.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: November 5, 2013
    Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corp.
    Inventors: Tzu-Chieh Hung, Saou-Wen Su
  • Patent number: 8571599
    Abstract: A mobile wireless communications device may include a portable housing, a circuit board carried by the portable housing, a wireless communications circuit carried by the circuit board, and an audio circuit carried by the circuit board. The mobile wireless communications device may further include an antenna assembly including an antenna carrier frame coupled to the circuit board and defining a cavity therein, and an antenna element carried on the antenna carrier frame and having a plurality of spaced apart signal feed points coupled to the wireless communications circuit. In addition, an audio transducer may be carried within the cavity of the antenna carrier frame and coupled to the audio circuit.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 29, 2013
    Assignee: Blackberry Limited
    Inventors: Ying Tong Man, Yihong Qi, Joshua Kwan Ho Wong
  • Patent number: 8543103
    Abstract: Embodiments relate to a system for conducting hearing aid compatibility testing of a mobile communication device. The system comprises: a simulated hand for supporting the mobile communication device during the testing; a probe; and a processor. The processor is configured to cause the probe to be positioned in a sequence of positions in proximity to the mobile communication device relative to an audio output component of the mobile communication device during the testing and to determine a field strength of a field radiated by the mobile communication device at the sequence of positions based on an output of the probe at each position.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 24, 2013
    Assignee: BlackBerry Limited
    Inventors: Yihong Qi, Ying Tong Man, Perry Jarmuszewski, Daoud S. Attayi, Paul Gerard Giles Cardinal
  • Patent number: 8502678
    Abstract: Apparatus and methods for providing a substantially surface independent tagging system are disclosed. A resonant dielectric cavity is defined between upper and lower conducting layers, and closed at one end by a conducting base portion. Incident radiation couples into the cavity and is resonantly enhanced. An electronic device or tag paced at the edge of the cavity experiences a high electric field strength on account of this enhancement and is driven into operation.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: August 6, 2013
    Assignee: Omni-ID Cayman Limited
    Inventors: James Robert Brown, Christopher Robert Lawrence
  • Patent number: 8453936
    Abstract: A device capable of enhancing an electric field to drive an electromagnetic tag into operation is switchable between states to control operation of the tag. Enhancement is provided by a dielectric cavity structure defined between first and second conducting layers. Different states of the device may have different resonant frequencies and read ranges according to the characteristics of the enhancement. As such a container can be provided which includes a tag which switches states on opening, allowing improved tracking characteristics.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: June 4, 2013
    Assignee: OMNI-ID Cayman Limited
    Inventors: Daniel Robert Johnson, Paul Richard Clarke, Christopher Robert Lawrence, James Robert Brown, William Norman Damerell, Richard James Duncombe
  • Patent number: 8447255
    Abstract: An improved variable matching network for use in a multi-band, multi-mode communications device provides dynamic, fine-tune impedance matching based on current operational conditions associated with a given signal. In one embodiment, gross parameters are selected based on one or more of the operational conditions. Delta parameters are provided using an optimization algorithm based on one or more of the operational conditions. And the gross and delta parameters are combined to obtain overall matching parameters that dynamically fine-tune discrete matching circuitry.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: May 21, 2013
    Assignee: Sony Ericsson Mobile Communications AB
    Inventor: Ramanathan Asokan
  • Publication number: 20130088403
    Abstract: A low phase variation attenuator uses a combined attenuation path and a phase network to significantly reduce a phase error between a reference signal and an attenuated signal without degrading the insertion loss. A grounded parallel connection of a resistor and a capacitor is employed in series with an attenuation transistor, which is connected to a middle of a two resistor voltage divider. The two resistor voltage divider includes two resistors of equal resistance that are connected in a series connection. The two resistor voltage divider is connected in a parallel connection with a reference transistor, which functions as a main switch for the transmission or attenuation of a radio frequency (RF) signal.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: International Business Machines Corporation
    Inventors: Pinping Sun, Hanyi Ding, Wayne H. Woods, JR.
  • Patent number: 8406831
    Abstract: Methods and apparatus are provided for adjusting the electromagnetic fields produced by telephones or other mobile devices capable of wireless communication. A wireless communication device includes a substrate having a ground plane. An antenna is coupled to the ground plane, and electrical currents are produced in the ground plane during operation of the antenna. A switchable counterpoise circuit that includes a conducting element and an inductor in series is provided on the substrate. The switchable counterpoise is selectively coupled to the ground plane based upon an operating mode of the wireless communications device, thereby adjusting the electrical currents flowing in the ground plane when the counterpoise is active. The changes in the ground plane currents can produce adjustments in the electromagnetic fields produced by the device, thereby improving hearing aid compatibility (HAC) of the device.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: March 26, 2013
    Assignee: Symbol Technologies, Inc.
    Inventors: Guangli Yang, Sarika Jain, Mike Verdecanna
  • Publication number: 20130057446
    Abstract: A first connection circuit 114 is adjusted to cancel the impedance of the mutual coupling between a first antenna element 150 and a second antenna element 151 in the range from the first frequency band to the second frequency band, thereby reducing degradation in the coupling between the antenna elements. With such a configuration, it is possible to achieve high-efficiency loosely coupled antennas operating in the same wide frequency band in a portable wireless terminal.
    Type: Application
    Filed: May 16, 2011
    Publication date: March 7, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Takanori Hirobe, Tomoaki Nishikido, Hiroshi Satou, Yoshio Koyanagi
  • Patent number: 8374660
    Abstract: An apparatus for reducing the electromagnetic interference between two or more co-located antennas is described herein. In one embodiment, the apparatus is positioned proximate to a second antenna for intercepting electromagnetic energy radiated from a first antenna during transmission of a signal. To reduce interference at the second antenna, the apparatus includes a plurality of resonant circuit elements, each being configured to resonate at or near a carrier frequency of the transmitted signal for redirecting at least a portion of the electromagnetic energy away from the second antenna. A method for reducing the electromagnetic interference between two or more antennas coupled to a wireless communication device is also disclosed herein.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: February 12, 2013
    Assignee: Motion Computing, Inc.
    Inventors: Todd W. Steigerwald, Jerry Mayfield
  • Patent number: 8301133
    Abstract: Embodiments relate to a system for conducting hearing aid compatibility testing of a mobile communication device. The system comprises: a simulated hand for supporting the mobile communication device during the testing; a probe; and a processor. The processor is configured to cause the probe to be positioned in a sequence of positions in proximity to the mobile communication device relative to an audio output component of the mobile communication device during the testing and to determine a field strength of a field radiated by the mobile communication device at the sequence of positions based on an output of the probe at each position.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 30, 2012
    Assignee: Research In Motion Limited
    Inventors: Yihong Qi, Ying Tong Man, Perry Jarmuszewski, Daoud S. Attayi, Paul Gerard Giles Cardinal
  • Patent number: 8284115
    Abstract: The present invention provides an apparatus for coupling a radio communication device to a host system. The apparatus comprises a housing including a counterpoise operatively coupled to the radio communication device. The apparatus also comprises a signal pathway operatively coupling the radio communication device to the host system. The apparatus thereby provides a counterpoise for the radio communication device which is external to both the host system and the radio communication device.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 9, 2012
    Assignee: Sierra Wireless, Inc.
    Inventors: Paul A. Nysen, Kevin Wolentarski, Pedro A. Gutierrez, Chih-Chuan Yen, Todd Van Cleave
  • Patent number: 8264358
    Abstract: Apparatus and methods for providing a substantially surface independent tagging system are disclosed. A resonant dielectric cavity is defined between upper and lower conducting layers, and closed at one end by a conducting base portion. Incident radiation couples into the cavity and is resonantly enhanced. An electronic device or tag paced at the edge of the cavity experiences a high electric field strength on account of this enhancement and is driven into operation.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 11, 2012
    Assignee: OMNI-ID Cayman Limited
    Inventors: James Robert Brown, Christopher Robert Lawrence
  • Patent number: 8179233
    Abstract: A participatory athletic event timing system based on backscattering modulation in the UHF band and including wirelessly encoding writable data tags with participant's bib numbers or a calculated derivative thereof for timing participants in a participative athletic event, and attaching the data tags to the participant's bibs for distribution of the bibs and data tags to participants so as to eliminate the need for matching data tags with bibs and maintaining the sequenced order of the matched data tags and bibs. In a preferred embodiment, when participants register for the event, they are assigned an ID number and a bib printed with that number and having attached to the bib one or more data tag encoded in the tags memory the ID number or a calculated derivative thereof. Before the start of the event, the athlete pulls the data tag from the bib and attaches it to their shoe.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 15, 2012
    Inventor: Arash Kia
  • Patent number: 8159409
    Abstract: According to one embodiment, an integrated patch antenna may comprise a radome layer, having an outside surface and an inside surface, and a radiating layer. The radiating layer has a top surface and a bottom surface, the top surface of the radiating layer conforming to the shape of the inside surface of the radome layer. The radiating layer comprises a dielectric layer, a radiating element formed on a first side of the dielectric layer, and a moat formed in the dielectric layer around its perimeter forming an inner perimeter sidewall and an outer perimeter sidewall. The radiating layer also comprises a conductive coating disposed on the inner perimeter sidewall or the outer perimeter sidewall and a feed line disposed on a second side of the dielectric substrate.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: April 17, 2012
    Assignee: Raytheon Company
    Inventors: William P. Harokopus, Patrick W. Cunningham
  • Patent number: 8104165
    Abstract: Various methods are disclosed herein for forming an apparatus, which is configured to reduce the electromagnetic interference between a pair of antennas coupled to a wireless communication device. In some embodiments, the method includes extracting a shape of the apparatus from a thin sheet of conductive material, and folding the shape into a plurality of resonant circuit elements. In other embodiments, the apparatus is formed within various cavities of a mold; a liquefied substance may be inserted into the mold for filling the various cavities and forming a plurality of resonant circuit elements. In all embodiments, the plurality of resonant circuit elements are each configured to resonate at (or near) a carrier frequency of a signal transmitted by one of the pair of antennas.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: January 31, 2012
    Assignee: Motion Computing Inc.
    Inventors: Todd W. Steigerwald, Jerry Mayfield
  • Publication number: 20120007788
    Abstract: An antenna module is provided. The antenna module is disposed in an electronic device. The antenna module includes an antenna, a signal processing unit, a first differential mode transformer, a first coaxial cable, and a second coaxial cable. The differential mode transformer is electrically connected between the antenna and the signal processing unit. The first coaxial cable includes first conductive core and first tubular conductor which encompasses the first conductive core. The signals received by the antenna are fed into first end of the first conductive core, and second end of the first conductive core is coupled to the differential mode transformer. The first tubular conductor is grounded. The second coaxial cable includes a second conductive core and a second tubular conductor which encompasses the second conductive core. A second end of the second conductive core is connected to the differential mode transformer. The second tubular conductor is grounded.
    Type: Application
    Filed: December 21, 2010
    Publication date: January 12, 2012
    Inventor: Guo-Zhi Hung
  • Patent number: 8063846
    Abstract: A semiconductor module includes a multilayer board, a first circuit element mounted on the multilayer board, a second circuit element stacked on the first circuit element, an interposer board, provided between the first circuit element and the second circuit element, which includes an antenna conductor, a passive element, mounted on the multilayer board, which is connected to the antenna conductor, and a molded resin layer which seals the respective elements. The antenna conductor is structured by a spiral-shaped wiring pattern and the both ends of the antenna conductor are connected to the passive element via a bonding wire. The antenna conductor functions as a loop antenna with the passive element inserted.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 22, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toshikazu Imaoka, Takeshi Otsuka, Tetsuro Sawai
  • Publication number: 20110241967
    Abstract: An antenna assembly generally includes an antenna element, an amplifier, and an electronics protection system coupled generally between the antenna element and the amplifier. In operation, the electronics protection system may filter cross-talk, protect against electrostatic discharge, and/or suppress radiated spurious emissions. The electronics protection system may include first and second inductors disposed in series generally between the antenna element and the amplifier. First and second diodes may be disposed generally between the first and second inductors.
    Type: Application
    Filed: June 16, 2011
    Publication date: October 6, 2011
    Applicant: LAIRD TECHNOLOGIES AB
    Inventors: Andrei Kaikkonen, Peter Lindberg
  • Patent number: 8026862
    Abstract: Apparatus, methods, and systems provide electromagnetic compression. In some approaches the electromagnetic compression is achieved with metamaterials. In some approaches the electromagnetic compression defines an electromagnetic distance between first and second locations substantially greater than a physical distance between the first and second locations, and the first and second locations may be occupied by first and second structures (such as antennas) having an inter-structure coupling (such as a near-field coupling) that is a function of the electromagnetic distance. In some approaches the electromagnetic compression reduces the spatial extent of an antenna near field.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: September 27, 2011
    Inventors: John Brian Pendry, David Schurig, David R. Smith
  • Publication number: 20110221651
    Abstract: A radio communication apparatus including: (a) a backfire dielectrically loaded antenna for operation at a frequency in excess of 200 MHz comprising: an electrically insulative dielectric core of a solid material having a relative dielectric constant greater than 5 and having an outer surface including oppositely directed distal and proximal surface portions extending transversely of an axis of the antenna and a side surface portion extending between the transversely extending surface portions, the core outer surface defining an interior volume the major part of which is occupied by the solid material of the core; a three-dimensional antenna element structure including at least one pair of elongate conductive antenna elements disposed on or adjacent the side surface portion of the core and extending from the distal core surface portion towards the proximal core surface portion; a feed structure in the form of an axially extending elongate laminate board comprising at least a transmission line section acting a
    Type: Application
    Filed: January 27, 2011
    Publication date: September 15, 2011
    Inventors: Andrew Robert Christie, David Michael Wither, Martyn Leslie Tongue, Frank Kwasi Frimpong
  • Publication number: 20110221650
    Abstract: A backfire dielectrically loaded antenna for operation at a frequency in excess of 200 MHz includes a dielectric core having a relative dielectric constant greater than 5 and having an outer surface defining an interior volume the major part of which is occupied by solid material of the core; a three-dimensional antenna element structure including at least one pair of elongate conductive antenna elements disposed on or adjacent the side surface portion of the core and extending from a distal core surface portion towards a proximal core surface portion; a feed structure having an axially extending elongate laminate board including a transmission line section acting as a feed line which extends through a passage in the core from the distal core surface portion to the proximal core surface portion, and an antenna connection section having an integrally formed proximal extension of the transmission line section the width of which, in the plane of the laminate board, is greater than the width of the passage; and a
    Type: Application
    Filed: January 27, 2011
    Publication date: September 15, 2011
    Inventors: Andrew Robert Christie, David Michael Wither, Sinikka Lyyra
  • Patent number: 8004473
    Abstract: An antenna device includes a pair of antennas and an isolating unit. The antennas have the same operating frequency. The isolating unit is disposed between the antennas, and includes an LC circuit that has a resonant frequency, which is the same as the operating frequency of the antennas, thereby improving isolation between the antennas.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: August 23, 2011
    Assignee: Realtek Semiconductor Corp.
    Inventors: Shyh-Jong Chung, Ming Ta Lin, Chih Hung Tsai
  • Publication number: 20110175788
    Abstract: The embodiment of the present disclosure discloses a power division network device, which comprises a shielding house and a circuit board. Two opposite surface layers of the circuit board are respectively provided with a signal transmission line and a coupling line. The signal transmission line and the coupling line are suspended in the shielding house. The coupling line comprises a coupling area, and a load interface and an output signal interface connected at the two ends of the coupling area. The projection of the coupling area on the surface layer where the signal transmission line is located falls onto the signal transmission line and forms thereon a projection area. The length of the projection area in the longitudinal direction of the signal transmission line is one quarter wavelength. Broadside coupling by way of making the projection of the coupling line fall onto the signal transmission line can realize the allocation and sampling of the signals transmitted in the signal transmission line.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 21, 2011
    Inventors: Xianzhi XIONG, Bangchang XU
  • Publication number: 20110155810
    Abstract: An antenna device is arranged to transmit or receive a radio frequency communication signal to or from an external device such as a reader/writer, and is arranged such that an antenna resonance circuit including an antenna coil and a capacitor is connected to an additional resonance circuit including an inductor and a capacitor. A radio frequency IC device preferably includes the antenna device and a radio frequency IC. The antenna device is constructed such that a change in characteristics thereof caused by a change in the distance between a radio frequency IC device and a reader/writer is minimized, and the radio frequency IC device performs communication with high reliability.
    Type: Application
    Filed: March 9, 2011
    Publication date: June 30, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Katsumi TANIGUCHI, Jun SASAKI, Noboru KATO
  • Patent number: 7880619
    Abstract: Apparatus and methods for providing a substantially surface independent tagging system are disclosed. A resonant dielectric cavity is defined between upper and lower conducting layers, and closed at one end by a conducting base portion. Incident radiation couples into the cavity and is resonantly enhanced. An electronic device or tag paced at the edge of the cavity experiences a high electric field strength on account of this enhancement and is driven into operation.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: February 1, 2011
    Assignee: Omni-ID Limited
    Inventors: James Robert Brown, Christopher Robert Lawrence
  • Patent number: 7852281
    Abstract: Embodiments of integrated high performance package systems for millimeter-wave array applications are described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: December 14, 2010
    Assignee: Intel Corporation
    Inventor: Debabani Choudhury
  • Patent number: 7839350
    Abstract: An antenna device according to the present invention includes; a plurality of antenna elements; a line which is electro-magnetically connected to each of the antenna elements and is branched from at least one branch point in the line; and filters formed in the line between a first branch point and each of said plurality of antenna elements. Here, the first branch point is the electrically farthest branch point from each of the antenna elements among all branch points.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: November 23, 2010
    Assignee: Panasonic Corporation
    Inventor: Shuichi Nagai
  • Patent number: 7787921
    Abstract: A field device in an industrial process control system having an electrically grounded housing with an electrical circuit located within the housing is described. The electrical circuit includes wireless communication circuitry and is electrically isolated from the housing. The field device also includes an antenna that is attached to the housing and a cable having a shield positioned between the wireless communication circuitry and the antenna. The cable provides electrical communication between the electrical circuit and the antenna. The electrical circuit is electrically isolated from the housing, and the shield of the cable is electrically grounded to the housing.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: August 31, 2010
    Assignee: Rosemount Inc.
    Inventor: Carl R. Gansen
  • Patent number: 7733288
    Abstract: A tunable passive anti-jamming antenna array system and method for minimizing the effects of electromagnetic interference in radio frequency antenna systems. The system and method utilize an external array of passive open circuited antennas strategically arranged between an intended receiving antenna unit and interfering signals to disrupt the interference signals and reduce the electromagnetic energy, interference, and noise reaching the intended receiving antenna unit.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: June 8, 2010
    Assignee: Microwave Mitigation and Detection (“MMAD”)
    Inventor: Stanley F. Williams
  • Patent number: 7733289
    Abstract: Apparatus, methods, and systems provide electromagnetic compression. In some approaches the electromagnetic compression is achieved with metamaterials. In some approaches the electromagnetic compression defines an electromagnetic distance between first and second locations substantially greater than a physical distance between the first and second locations, and the first and second locations may be occupied by first and second structures (such as antennas) having an inter-structure coupling (such as a near-field coupling) that is a function of the electromagnetic distance. In some approaches the electromagnetic compression reduces the spatial extent of an antenna near field.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: June 8, 2010
    Inventors: John Brian Pendry, David Schurig, David R. Smith
  • Patent number: 7724204
    Abstract: Improved electrical connector apparatus including a wireless antenna acting as a transceiver in conjunction with a wireless integrated circuit is disclosed. In one embodiment, the modular connector comprises an RJ45 modular jack, and the wireless transceiver comprises a Bluetooth transceiver transmitting via an integrated antenna disposed on the front face of the Faraday shield at least partly surrounding the modular connector. In another embodiment, an 802.11 transceiver is used. In yet another embodiment, an ultra-wideband (UWB) interface is used.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: May 25, 2010
    Assignee: Pulse Engineering, Inc.
    Inventors: Petteri Annamaa, Alan H. Benjamin
  • Publication number: 20090322643
    Abstract: Embodiments of integrated high performance package systems for millimeter-wave array applications are described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventor: Debabani Choudhury
  • Patent number: 7629941
    Abstract: Apparatus, methods, and systems provide electromagnetic compression. In some approaches the electromagnetic compression is achieved with metamaterials. In some approaches the electromagnetic compression defines an electromagnetic distance between first and second locations substantially greater than a physical distance between the first and second locations, and the first and second locations may be occupied by first and second structures (such as antennas) having an inter-structure coupling (such as a near-field coupling) that is a function of the electromagnetic distance. In some approaches the electromagnetic compression reduces the spatial extent of an antenna near field.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: December 8, 2009
    Inventors: John Brian Pendry, David Schurig, David R. Smith
  • Patent number: 7612731
    Abstract: Methods and apparatus for a plate to prevent energy from a first antenna from interfering with a collocated second antenna. In one embodiment, the plate includes first and second conductive layers to shadow the second antenna and thereby block energy from reaching the second antenna. A resonant quarter wavelength spacing of the plates forces energy broadside minimizing the spillover the edge caused by diffraction. Multiple conductive layers having increasing radii can block diffracted energy from spilling over and around the plate. The multiple plates of increasing radii affect a waterfall-like spill wherein energy is lost in each level.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: November 3, 2009
    Assignee: Raytheon Company
    Inventor: Lewis Peterson
  • Publication number: 20090135080
    Abstract: A portal article detection means (10, 20) having a plurality of radiator elements (1, 2, 3, L1, L2, L3) for generating a magnetic field (B), wherein the magnetic radiator further comprises an electronic component (?L12, ?L23, ?L13) arranged in electrical connection between said radiator elements for substantially decoupling the radiator elements (L1, L2, L3).
    Type: Application
    Filed: November 28, 2008
    Publication date: May 28, 2009
    Applicant: Stichting ASTRON
    Inventors: Pieter Benthem, Johan Booij, Frans Philip Schreuder, Johan Marinus Vissia