Including Loop-type Antenna Patents (Class 343/728)
  • Patent number: 10832116
    Abstract: A metal contactless smart card includes a first metal layer having a first slit, a second layer, a radio-frequency integrated circuit chip module, and an inlay having an antenna. A nonconductive insert may be fitted in the slit. The first metal layer may include an inlay recess where the inlay may be received and a through-hole where the chip may be inserted. The second layer of the smart card may be made of metal and may also include a slit.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: November 10, 2020
    Inventors: Soo Hyang Kang, Nam Joo Kim
  • Patent number: 10707565
    Abstract: The antenna comprises a magnetic core (2), three windings (31, 32, 33) wound around the magnetic core (2) and an electrically insulated base (1) on which the magnetic core (2) wound with these windings (31,32,33) is arranged. The insulated base (1) includes metallic tabs (121 . . . 128) electrically connected to said windings (31, 32, 33) and the base (1) has a bottom surface with electrically conductive plates (131 . . . 138) with connection to the metallic tabs (121 . . . 128) and providing a layout for a SMT mounting, The antenna comprises an electrically insulated cap (4), having an upper surface (4U) including a metallized surface high frequency coil (42) working as a HF antenna and a side surface (4S), two ends (411, 412) of the coil (42) being arranged on the side surface (4S) for connection to the metallic tabs (121 . . . 128) of the electrically insulated base (1).
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: July 7, 2020
    Assignee: PREMO, SA
    Inventors: Francisco Ezequiel Navarro Pérez, Antonio Rojas Cuevas, Sergio Cobos Reyes
  • Patent number: 10217043
    Abstract: An ultrahigh frequency RFID tag antenna with multi-infeed includes an antenna assembly, a baseboard, and a ground plane. The baseboard is located above the ground plane. The antenna assembly is electrically connected to the ground plane. The antenna assembly includes a radiated element, a number of microstrip lines, and a number of tag chips. Each of the tag chips is connected between each two microstrip lines, thereby a microstrip feed loop is formed by each of the tag chips and the each two microstrip lines.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 26, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Hung Tsao, Fu-Yen Hsieh
  • Patent number: 10177462
    Abstract: A broadband multi-bay antenna array comprising an upper antenna element group and a lower antenna element group. Each of the upper antenna group and lower antenna group comprises a pair of antenna elements separated by a distance of one-half wavelength at mid-band wavelength. Radiating elements of the first antenna in each pair are positioned in a first orientation and radiating elements of the second antenna in each pair are positioned in a second orientation which differs from the orientation of the first antenna by 180 degrees (flipped over). A center feed input port is positioned between the upper antenna element group and the lower antenna element group and is electrically coupled to each of the first, second, third and fourth antenna elements.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: January 8, 2019
    Assignee: Electronics Research, Inc.
    Inventor: Robert W Rose
  • Patent number: 10140569
    Abstract: A metal contactless smart card includes a first metal layer having a first slit, a second layer, a radio-frequency integrated circuit chip module, and an inlay having an antenna. A nonconductive insert may be fitted in the slit. The first metal layer may include an inlay recess where the inlay may be received and a through-hole where the chip may be inserted. The second layer of the smart card may be made of metal and may also include a slit.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: November 27, 2018
    Inventors: Soo Hyang Kang, Nam Joo Kim
  • Patent number: 9985341
    Abstract: A wearable electronic device includes a bezel encasing device electronics and having a metallic portion and a dielectric insert portion. The metallic portion of the bezel is grounded at a point of zero potential and coupled to a differential feed structure that spans the dielectric insert portion to feed opposite ends of the metallic portion.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 29, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Benjamin Shewan, Stanley Yu Tao Ng, Sidharath Jain
  • Patent number: 9971668
    Abstract: A method for identifying performance bounds of a transmit-receive (T/R) module over a bandwidth ƒb when connected to an antenna, a transmitter, and a receiver all with known reflectance within the bandwidth ƒb; measuring a raw T/R module point representing isolation and insertion loss of the T/R module when connected to the antenna, the transmitter, and the receiver without a matching circuit; plotting the raw T/R module point on a performance image graph; using a mathematical representation of a multiport matching circuit that contains no gyrators and comprises a fixed number of capacitors and inductors to approximate a Pareto front comprised of a plurality of Pareto points; and connecting each Pareto point to the raw T/R module point on the performance image graph such that the performance image becomes a visual representation of the performance bounds of a class of multiport matching circuits having capacitors and inductors.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 15, 2018
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Jeffery C. Allen, Diana Arceo, John W. Rockway
  • Patent number: 9837700
    Abstract: An antenna device of the present invention includes, in one aspect: a patch antenna having a resonant frequency at a first frequency; and a loop antenna having a resonant frequency at a second frequency that is different from the first frequency. A loop length of the loop antenna is such that standing waves are generated in the loop antenna when the loop antenna receives radio waves of the first frequency, and the patch antenna is disposed so as to magnetically couple with the loop antenna.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 5, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Shigeru Yagi, Youichi Ushigome
  • Patent number: 9590315
    Abstract: An apparatus for a planar phase array antenna is provided. The planar phase array antenna includes a planar waveguide formed by a top ground and a bottom ground with a dielectric layer between the top ground and the bottom ground, a phase array, including radiators, configured to form an electromagnetic wave front inside the planar waveguide, at least one back side reflecting structure located behind the phase array, and at least one deflecting structure, implemented in the dielectric layer, configured to deflect the electromagnetic wave front inside the planar waveguide, wherein a permittivity value of the at least one deflecting structure is not equal to a permittivity value of the dielectric layer of the planar waveguide.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gennadiy Alexandrovich Evtyushkin, Timofey Viktorovich Kamyshev, Elena Alexandrovna Shepeleva
  • Patent number: 9472847
    Abstract: An antenna structure is electronically connected to a connector of a wireless communication device. The connector includes a power terminal and a ground terminal. The antenna structure includes a main antenna, a secondary antenna, and two posts. The main antenna includes a feed portion and a ground portion. The secondary antenna extends from the main antenna. One post electronically connects the power terminal of the connector to the feed portion, and the other post electronically connects the ground terminal of the connector to the ground portion. A wireless communication device employing the antenna structure is also described.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 18, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yi-Chieh Lee, Yen-Hui Lin
  • Patent number: 8995910
    Abstract: An antenna and a mobile terminal having the antenna are discussed. According to an embodiment, the antenna can include a flexible board having a first region and a second region; a high frequency antenna pattern formed in the first region of the flexible board to transceive a wireless signal by detecting a magnetic flux; a low frequency antenna pattern formed in the second region of the flexible board to generate an induced current; and a magnetic sheet stacked on one surface of the flexible board to simultaneously cover both of the high frequency antenna pattern and the low frequency antenna pattern, the magnetic sheet having a high magnetic permeability for both a high frequency and a low frequency.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 31, 2015
    Assignee: LG Electronics Inc.
    Inventors: Kabsung Chong, Jongoh Kim, Youngtae Kim, Mizi Yi, Kiwon Han, Euntaek Jeoung
  • Publication number: 20150077297
    Abstract: A dual band antenna device and method of formation is provided. In one embodiment, the method comprises providing a planar conductive sheet; forming a slot antenna in the conductive sheet; the slot antenna configured to communicate at a first frequency; forming a multi-turn antenna in the conductive sheet; the multi-turn antenna configured to communicate in a second frequency that is different from the first frequency; and connecting at least one integrated circuit to said first antenna and said second antenna; enclosing said first antenna, said second antenna, and said at least one integrated circuit in a wearable enclosure.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Applicant: AVERY DENNISON RETAIL INFORMATION SERVICES LLC
    Inventor: Ian James FORSTER
  • Patent number: 8983377
    Abstract: A near field communication antenna device of a mobile terminal having a near field communication antenna function of 13.56 MHz by Alternating Current (AC) coupling a conductive pattern of a touch screen panel is provided. The device includes a conductive pattern formed in a touch screen panel, a first antenna line AC-coupled to one end of the conductive pattern, a second antenna line AC-coupled to the other end of the conductive pattern, and a near field communication module connected to the first antenna line and the second antenna line. Therefore, a near field communication antenna can be embodied using a conductive pattern of an existing touch screen panel. Accordingly, an increase in thickness and material cost of a mobile terminal can be prevented.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung Ryong Park
  • Publication number: 20150022401
    Abstract: Provided is an antenna system. The antenna system, in this aspect, includes a first antenna operable to communicate at a given frequency below about 1000 MHz. The antenna system, in this aspect, further includes a second antenna of a different type associated with the first antenna and operable to communicate at the given frequency, wherein a correlation coefficient of the first and second antennas is less than about 0.5 for the given frequency. In this antenna system, the first and second antennas are capable of fitting within a conductive chassis having a largest physical dimension of about ¼ or less a wavelength of the given frequency.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Applicant: Nvidia Corporation
    Inventors: Joselito Gavilan, Warren Lee
  • Patent number: 8933852
    Abstract: A mobile communication device includes an antenna structure which includes a grounding element and an antenna element. There is a notch at an edge of the grounding element. The antenna element is disposed in the notch and includes a metal loop portion and a monopole antenna. The metal loop portion is electrically connected to the grounding element with at least one shorting point, such that a short-circuited closed metal loop is formed. The monopole antenna has a first end and a second end, wherein the first end of the monopole antenna is a feeding point connected to a signal source, and the second end of the monopole antenna is an open end surrounded by the closed metal loop.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: January 13, 2015
    Assignee: Acer Incorporated
    Inventors: Kin-Lu Wong, Yeh-Chun Kao
  • Patent number: 8928539
    Abstract: An antenna unit and a radio communication device are provided. An antenna unit has a monopole antenna section and a loop antenna section. The monopole antenna section includes a linear radiating electrode that resonates at a first frequency and has an electrical length of one-quarter of the wave length corresponding to the first frequency. The loop antenna section includes a radiating electrode that resonates at a second frequency, is vertically erected on a non-ground region, and connected to a feed line. A proximal end of the radiating electrode of the loop antenna section is connected to an intermediate portion of the feed line, and a distal end thereof is connected to a ground region. The electrical length of the radiating electrode of the loop antenna section is one-half of the wave length of the second frequency.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: January 6, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kengo Onaka, Osamu Shibata, Yuichi Kushihi
  • Patent number: 8922442
    Abstract: A device for wireless communication including a wireless transceiver, a printed circuit board (PCB) coupled to the wireless transceiver, a first antenna and a second antenna. The first antenna is coupled to the PCB at a feed point and grounded at a ground point. The first antenna is a quarter-wavelength antenna communicating signals with the wireless transceiver at a first frequency band. The second antenna is coupled to the first antenna at the feed point and grounded at a further ground point. The second antenna is a half-wavelength antenna communicating signals with the wireless transceiver at a second frequency band.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: December 30, 2014
    Assignee: Symbol Technologies, Inc.
    Inventors: Guangli Yang, Xiaotao Liang, Mikhail Bruk, Dean La Rosa
  • Patent number: 8917214
    Abstract: A dual band antenna device and method of formation is provided. In one embodiment, the method comprises providing a planar conductive sheet; forming a slot antenna in the conductive sheet; the slot antenna configured to communicate at a first frequency; forming a multi-turn antenna in the conductive sheet; the multi-turn antenna configured to communicate in a second frequency that is different from the first frequency; and connecting at least one integrated circuit to said first antenna and said second antenna; enclosing said first antenna, said second antenna, and said at least one integrated circuit in a wearable enclosure.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: December 23, 2014
    Assignee: Avery Dennison Corporation
    Inventor: Ian J. Forster
  • Patent number: 8902119
    Abstract: Described are antenna assemblies and methods for forming antenna assemblies. An antenna assembly includes a dual polarized far-field antenna and a near-field loop antenna. The near-field loop antenna is electromagnetically coupled to the dual polarized far-field antenna. The near-field loop antenna includes two contacts for electrically connecting to a chip.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: December 2, 2014
    Assignee: Tagstar Systems GmbH
    Inventors: Norbert Wilhelm Menke, Stefan Mieslinger, Michael Kober
  • Patent number: 8860616
    Abstract: An improved RFID antenna system using a first RFID antenna device (in the form of a magnetic antenna (15)) and using a second RFID antenna device (21, 21?) using a flat antenna is distinguished by the following features: the second RFID antenna device comprises one flat antenna (21, 21?) or a group antenna with at least two flat antennas (21, 21?), and the metal plane of the flat antenna (21, 21?) and/or the earth or reflector plane (31; 31.1; 31.2) is divided into metal, earth or reflector plane sections (31.1; 31.2) by slots, interruptions and or recesses (133), wherein the metal, earth or reflector sections (31.1; 31.2) are electrically conductively separated from one another or are electrically conductively connected to one another.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: October 14, 2014
    Assignee: Kathrein-Werke KG
    Inventors: Thomas Lankes, Frank Mierke, Gerald Schillmeier
  • Patent number: 8854267
    Abstract: An antenna device for improving antenna performance of a portable terminal having a metal edge installed on a case frame is disclosed. The antenna device includes a main board equipped with a power supply end for supplying power and a ground surface for grounding the main board, a loop radiator connected with the power supply end of the main board at first end and connected with the ground surface of the main board at a second end, and a metal body disposed along an edge of the portable terminal and electrically connected with the ground surface of the main board.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hee Kim, Dong-Hyun Lee, Se-Hyun Park, Austin Kim, Joon-Ho Byun
  • Patent number: 8811278
    Abstract: The present invention provides a high/low frequency dual wireless location detection and information transmission system which is high in reliability and maintainability, and can be easily installed. A leakage coaxial inner conductor and a conductor line provided in parallel are short-circuited at an end, a single leakage coaxial operation and a loop operation of the inner conductor and the conductor line are performed at the same time, the ID of a tag is communicated using magnetic fields which locally exist near the conductor line by the loop, and wireless position detection and information communications which are less affected by the influence of ambient environments due to electromagnetic waves in a closed area are realized by open-type lines.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: August 19, 2014
    Assignees: Hitachi, Ltd., Hitachi Metals, Ltd.
    Inventors: Ken Takei, Kazuo Tamura, Nobuaki Kitano, Seiichi Kashimura, Hiroyuki Hori, Yasuo Ishikawa
  • Patent number: 8766869
    Abstract: An antenna apparatus includes: a ground substrate; and a loop antenna having first and second polarized wave surfaces, which are perpendicular to the substrate. The substrate provides an antenna, which is excited and vibrated together with the loop antenna. The antenna has a first polarized wave component in parallel to the first polarized wave surface and a second polarized wave component in parallel to the second polarized wave surface. A polarized wave ratio between the first polarized wave component and the second polarized wave component in the substrate is substantially equal to a polarized wave ratio between the first polarized wave surface and the second polarized wave surface in the loop antenna.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 1, 2014
    Assignees: DENSO CORPORATION, Nippon Soken, Inc.
    Inventors: Yuuji Kakuya, Akira Takaoka, Hidenori Wada, Kouji Yamashita
  • Publication number: 20140141731
    Abstract: A method and system provides a multiple input multiple output (MIMO) antenna arrangement in a wireless communication device. A first antenna element and a second antenna element co-located within a same antenna volume are respectively coupled to first and second antenna feeds proximate to a base perimeter segment of a device chassis. The first antenna feed is at a pre-calculated distance from the second antenna feed. The second antenna element, a first MIMO antenna, is coupled to an antenna ground positioned proximate to the first antenna feed and at a pre-determined distance from the second antenna feed. A third antenna element operating as a second MIMO antenna is placed proximate to a top perimeter segment of the device chassis. The antenna arrangement achieves (a) low correlation between the MIMO antennas and (b) an acceptable or pre-determined level of antenna isolation between the first antenna element and the second antenna element.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Mohammed R. Abudul-Gaffoor, Md Faisal Abedin, Minh H. Duong
  • Patent number: 8723754
    Abstract: A multi-band antenna includes a loop conductor, a first conductor arm, and a second conductor arm. The loop conductor is configured to resonate in a first frequency band and includes a feed-in end for feeding of signals and a main body that extends from the feed-in end, and that has a grounding point disposed adjacent to the feed-in end. The first conductor arm is configured to resonate in a second frequency band and extends from the feed-in end. The second conductor arm is configured to resonate in a third frequency band and extends from the feed-in end. At least one of the loop conductor, the first conductor arm, and the second conductor arm is bent so as to be disposed in different planes.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Ying-Chih Wang, Tsung-Ming Kuo, Ling-Chen Wei
  • Patent number: 8710958
    Abstract: A container having a radio frequency identification tag attached thereto by means of a stud or a radio frequency identification tag retainer projecting from the exterior surface of the container. The container can be used to contain medical products, and the container can be of various types, such as, for example, a bottle, a micro-well plate, a cartridge, a tube. In one embodiment, the container has a radio frequency identification tag affixed thereto. The container comprises a mouth, a neck, a body, and a bottom. The container can also have a closure, a septum, or an adapter for other components of an automated clinical analyzer. The neck is capable of receiving a closure. A stud or a radio frequency identification tag retainer projecting from the bottom of the container, preferably the center of the bottom of the container, serves to retain the radio frequency identification during the attachment of the radio frequency identification tag to the container.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: April 29, 2014
    Assignee: Abbott Laboratories
    Inventors: Tahua Yang, Michael A. Berek
  • Publication number: 20140078009
    Abstract: The present invention is related to a communication device which includes a ground element and an antenna system. The ground element includes a main ground plane and a protruded ground plane. The antenna system includes a first antenna and a second antenna. The first antenna includes a metal radiation element and is adjacent to the main ground plane of the ground element. The second antenna is a slot antenna and is formed in the protruded ground plane of the ground element. The protruded ground plane is adjacent to the first antenna.
    Type: Application
    Filed: December 12, 2012
    Publication date: March 20, 2014
    Applicant: ACER INCORPORATED
    Inventors: Kin-Lu WONG, Po-Wei LIN
  • Patent number: 8669846
    Abstract: The present invention provides one or more powered wireless transceivers and/or one or more passive wireless transceivers, a reader and interrogator with variable power, one or more antennas connected to a human or robotic hand and/or foot, a method for making same and the method of using these devices for process automation and verification involving one or more items in addition to locating, tracking and identifying these items in a supply chain. In one embodiment, a proximity sensing wireless system is provided which can be used to step the handler or operator through the step of a process and verify that each step in the process has been completed.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: March 11, 2014
    Assignee: Eigent Technologies Inc.
    Inventors: Robert Warner, James Wang, Jack Winters
  • 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
  • Patent number: 8654021
    Abstract: Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 18, 2014
    Assignee: Dockon AG
    Inventors: Forrest James Brown, Ryan James Orsi, Matthew Robert Foster
  • Patent number: 8654022
    Abstract: Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 18, 2014
    Assignee: Dockon AG
    Inventors: Forrest James Brown, Ryan James Orsi, Matthew Robert Foster
  • Publication number: 20140008446
    Abstract: A multi-band antenna is disclosed that can operate in two different frequency bands through two different modes of operation. It can operate as a radio antenna for coupling energy into or out of a radio signal in a radio frequency band; or it can operate as a magnetic antenna for coupling energy into or out of a magnetic signal in a lower frequency band. A radio signal is a signal consisting of an electromagnetic wave; a magnetic signal is a signal consisting of a magnetic field. The multi-band antenna achieves the two modes of operation in a compact volume of space comparable to the volume of space occupied by an equivalent single-band antenna.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 9, 2014
    Inventor: William N. Carr
  • Patent number: 8610638
    Abstract: An antenna radiating element is arranged as at least one coil and defines a first feed port and a second feed port at its opposed ends. There is a third feed port disposed along the antenna radiating element substantially at a radio frequency effective symmetry point between the first and the second radio feed ports. The first and second feed ports are for interfacing a first radio (e.g., RFID/NFC radio) to the antenna radiating element, and the third feed port is for interfacing a second radio (e.g., FM-TX) to the antenna radiating element. The antenna radiating element is configured to function simultaneously as a balanced coil antenna with respect to the first radio and as two parallel half-loop antennas with respect to the second radio.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: December 17, 2013
    Assignee: Nokia Corporation
    Inventors: Niels B. Larsen, Jouni V. Karkinen
  • Patent number: 8587488
    Abstract: The invention relates to an antenna unit for wireless communication to a multitude of wireless interfaces comprising a multitude of individual antennas, each antenna comprising a coil comprising at least one winding and the individual antennas embrace the same volume and to a hearing aid comprising such antenna unit. The object of the present invention is to provide an antenna unit and a hearing aid providing several wireless interfaces at a relatively small volume. The problem is solved in that at least one of the coils is adapted for providing an inductive coupling to another device. Among the advantages are reduced space/volume, reduced cost and reduced sensitivity to production tolerances compared to a solution comprising individual, separate antennas. The invention may e.g. be used in wireless communication devices, e.g. mobile telephones, head phones, head sets, hearing aids, etc.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 19, 2013
    Assignee: Oticon A/S
    Inventors: Ove Knudsen, Poul Henriksen
  • Patent number: 8558670
    Abstract: An electric power communication device includes a plurality of directional antennas, a plurality of electric power communication portions, and an electric power communication control portion. Each of the plurality of directional antennas has directionality, and each of the plurality of electric power communication portions has directionality. The electric power communication control portion controls which of the plurality of electric power communication portions is used for electric power communication with a partner communication device, in accordance with the directional antenna, among the plurality of directional antennas, for which receiving of an incoming wireless signal that was transmitted from the partner communication device has been detected.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 15, 2013
    Assignee: Sony Corporation
    Inventor: Shigeru Sugaya
  • Patent number: 8537063
    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 is a conductor loop disposed parallel to the base surface. The loop antenna has capacitors disposed along the conductor loop. The antenna connection point is coupled to an interruption of the loop antenna. This connection point feeds a ring current into the loop antenna. At least one additional antenna element extends between the antenna element connection point and the loop antenna. The additional antenna element has a polarization orientated perpendicular to the polarization of the loop antenna and an orthogonal phase in the far field.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: September 17, 2013
    Assignee: Delphi Delco Electronics Europe GmbH
    Inventors: Stefan Lindenmeier, Heinz Lindenmeier, Jochen Hopf, Leopold Reiter
  • Patent number: 8487821
    Abstract: An antenna includes a dipole radiator region forming a series resonant tank having a first quality factor value Q1, and a loop compensator/radiator region integral with the dipole region and forming a parallel resonant tank having a second quality factor value Q2 that is substantially equal to Q2. The antenna may be a conductive sheet antenna (e.g., comprising copper tape) having a generally “A” shaped structure with a discontinuity in a middle segment.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: July 16, 2013
    Assignee: Symbol Technologies, Inc.
    Inventors: Mark Duron, Richard Knadle
  • Patent number: 8487825
    Abstract: A communication device is disclosed that includes an antenna apparatus including a feeding portion, a looped antenna element connected to the feeding portion, and a resistor inserted into the looped antenna element, and a communication circuit configured to process data that is transmitted and received via the antenna apparatus.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 16, 2013
    Assignee: Fujitsu Component Limited
    Inventors: Masahiro Yanagi, Shigemi Kurashima, Takashi Arita
  • Patent number: 8482471
    Abstract: The hybrid multiple-input multiple-output antenna module includes a grounding unit, a plurality of radiating units, loop units and filter units. The radiating units and the loop units are arranged around a geometric center of the grounding unit and are alternately and symmetrically arranged on the grounding unit. The loop units are arranged along the outer peripheral side of the grounding unit. The filter units are respectively electrically connected to the loop units. The present invention not only has some advantages such as small size, low profile, good isolation, high antenna gain and good radiation properties, but also can replace the external dual-band access-point antenna of the prior art for 2.4/5 GHz operation with no need of an extra diplexer. In addition, the hybrid multiple-input multiple-output antenna module can be hidden in the wireless communication device in order to enhance the appearance of the product.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: July 9, 2013
    Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
    Inventor: Saou-Wen Su
  • Patent number: 8477065
    Abstract: An antenna configuration is described for high frequency (HF) or very high frequency (VHF) radars contained in a single vertical post. The radar may include a vertical dipole or monopole transmitting antenna collocated with a three-element receive antenna. The three antennas including two crossed loops and a vertical element are used in a direction-finding (DF) mode. Isolation between the three antennas produces high quality patterns useful for determining target bearings in DF mode. The single vertical post is sufficiently rigid mechanically that it may be installed along a coast without guy wires.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 2, 2013
    Assignee: CODAR Ocean Sensors Ltd
    Inventors: Donald E. Barrick, Peter M. Lilleboe
  • Publication number: 20130162488
    Abstract: An antenna unit and a radio communication device are provided. An antenna unit has a monopole antenna section and a loop antenna section. The monopole antenna section includes a linear radiating electrode that resonates at a first frequency and has an electrical length of one-quarter of the wave length corresponding to the first frequency. The loop antenna section includes a radiating electrode that resonates at a second frequency, is vertically erected on a non-ground region, and connected to a feed line. A proximal end of the radiating electrode of the loop antenna section is connected to an intermediate portion of the feed line, and a distal end thereof is connected to a ground region. The electrical length of the radiating electrode of the loop antenna section is one-half of the wave length of the second frequency.
    Type: Application
    Filed: February 22, 2013
    Publication date: June 27, 2013
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: MURATA MANUFACTURING CO., LTD.
  • Publication number: 20130135157
    Abstract: A portable communication device includes an appearance, a substrate and a switchable resonant antenna. The substrate is disposed in the appearance, and the substrate has a ground plane. The switchable resonant antenna comprises a first connection portion, a switching unit, a first metal element and a second metal element, where the first connection portion is electrically coupled between the ground plane and the switching unit, the switching unit is configured to electrically couple the first connection portion to the first metal element or the second metal element according to a control signal generated corresponding to a detecting result, in order to generate a first resonant mode.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Applicant: HTC CORPORATION
    Inventors: Tun-Yuan Tsou, Pei-Ling Teng, Yi-Chun Chen, Hong-Lung Chen, Kuo-Cheng Chen
  • Publication number: 20130099790
    Abstract: A portable locator for locating an obscured marker. The locator includes a portable locator housing, a first antenna disposed within the housing, a second antenna disposed orthogonally to the antenna within the housing; and a processor. The processor is configured to interact with each of the first and second antennas, such that each of the first and second antennas is configured to transmit and receive signals. The locator may include more than two antennas, and may include multiple sets of antennas.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 25, 2013
    Inventors: Ziyad H. Doany, Timothy A. Parkinson
  • Patent number: 8412290
    Abstract: A miniaturized, low power RF transmitter with a dual mode active on-chip antenna/inductor is disclosed in which antenna also serves as the oscillator inductor. Also disclosed is a miniaturized low power RF receiver with an on-chip antenna; and a RF transmitter system wherein an on-chip antenna is wirelessly coupled to an off chip patch antenna are disclosed. Advantageously, the TX chip is housed in a low loss, e.g. Low Temperature Co-fired Ceramic (LTCC) package with a patch antenna to provide a System-on-Package implementation comprising electromagnetic coupling between a RF TX chip comprising an integrated on-chip antenna and a package antenna.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: April 2, 2013
    Inventors: Atif Shamim, Muhammad Arsalan, Langis Roy
  • Patent number: 8410982
    Abstract: A unidirectional wireless antenna with a front-to-back ratio of 20 dB comprises a loop antenna and a dipole antenna interconnected by a metallic element and printed on a printed circuit board. The antenna is small in size but provides good unidirectional transmission.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: April 2, 2013
    Assignee: City University of Hong Kong
    Inventors: Edward Kai Ning Yung, Pak Wai Chan, Hang Wong
  • Patent number: 8344958
    Abstract: The invention relates to a secured document in the form of a booklet of at least one sheet which may be folded about a folding axis, the document having a transponder with an electronic chip provided with a memory for storing data and a transponder antenna. The document also includes a foldable amplifier antenna, distinct from the transponder antenna and arranged on the document such that, when the same is open, the amplifier antenna amplifies the electromagnetic flux received by the transponder antenna to permit communication of the document with a remote reader and, in the closed position of the document, the amplifier antenna reduces the electromagnetic flux received by the transponder antenna beneath a minimum threshold permitting communication of the electronic chip with a remote reader.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: January 1, 2013
    Assignee: Smart Packaging Solutions (SPS)
    Inventors: Olivier Artigue, Cécile Sicot
  • Publication number: 20120306707
    Abstract: A device for wireless communication including a wireless transceiver, a printed circuit board (PCB) coupled to the wireless transceiver, a first antenna and a second antenna. The first antenna is coupled to the PCB at a feed point and grounded at a ground point. The first antenna is a quarter-wavelength antenna communicating signals with the wireless transceiver at a first frequency band. The second antenna is coupled to the first antenna at the feed point and grounded at a further ground point. The second antenna is a half-wavelength antenna communicating signals with the wireless transceiver at a second frequency band.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Inventors: Guangli YANG, Xiaotao Liang, Mikhail Bruk, Dean La Rosa
  • Patent number: 8325015
    Abstract: A flexible wristband includes conductive silicone rubber loops and an insulating rubber portion. The conductive silicone rubber loops are formed parallel to one another, and substantially define a circumference of the wristband. The conductive silicone loops are connected through a radio frequency identification (RFID) integrated circuit package to form a loop antenna. The insulating silicone rubber portion is formed parallel to the conductive silicone rubber loops, separating the conductive silicone rubber loops and providing an insulating break in the conductive loops. The RFID integrated circuit package includes multiple terminals respectively connected to the conductive silicone rubber loops to create a loop antenna, enabling the RFID integrated circuit package to transmit data through the loop antenna.
    Type: Grant
    Filed: January 17, 2009
    Date of Patent: December 4, 2012
    Assignee: NXP B.V.
    Inventor: Trevor G. R. Hall
  • Patent number: 8295799
    Abstract: Aspects of a method and system for identifying a radio frequency identification (RFID) tag location using a switchable coil are presented. Aspects of the systems may include one or more processors that enable selection of an inductor coil from a plurality of inductor coils. The selection of the inductor coil may be based on a change in an electromagnetic field, with respect to an initial electromagnetic field, as detected by the selected inductor coil. The processors may enable transmission of a signal, having a transmitter frequency in the UHF frequency band, via the selected inductor coil.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: October 23, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Amin Shameli
  • Patent number: 8295786
    Abstract: The present invention provides a magnetic sheet with improved resistance to folding while maintaining good magnetic characteristics and reliability; a method for producing the magnetic sheet; an antenna; and a portable communication device. A magnetic sheet of the present invention includes a flat magnetic powder, and a resin binder capable of dissolving in a solvent, wherein the magnetic sheet has a gradient of the content ratio of the magnetic powder to the resin binder in a thickness direction thereof, wherein, in use, the magnetic sheet is folded so that, of the front and back surfaces thereof, one surface whose magnetic powder content is lower than that of the other is folded inward, and wherein the difference in glossiness measured at a light-incident angle of 60° between the front and back surfaces is 9.4 or more.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 23, 2012
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Keisuke Aramaki, Junichiro Sugita, Morio Sekiguchi