Plural Patents (Class 343/742)
  • Patent number: 11557827
    Abstract: A radiating system of a wireless device transmits and receives electromagnetic wave signals in a frequency region and comprises an external port, a radiating structure, and a radiofrequency system. The radiating structure includes: a ground plane layer with a connection point; a radiation booster with a connection point and being smaller than 1/30 of a free-space wavelength corresponding to a lowest frequency of the frequency region; and an internal port between the radiation booster connection point and the ground plane layer connection point. The radiofrequency system includes: a first port connected to the radiating structure's internal port; and a second port connected to the external port. An input impedance at radiating structure's disconnected internal port has a non-zero imaginary part across the frequency region. The radiofrequency system modifies impedance of the radiating structure to provide impedance matching to the radiating system within the frequency region at the external port.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: January 17, 2023
    Assignee: IGNION, S.L.
    Inventors: Jaume Anguera Pros, Aurora Andujar Linares, Carles Puente Baliarda, Josep Mumbru
  • Patent number: 11545755
    Abstract: Provided is a conductor, for example, equipped with a split-ring resonator, and an opening, wherein a split in the split-ring resonator and the opening are spatially continuous.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: January 3, 2023
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Eiji Hankui, Hiroshi Toyao, Keishi Kosaka
  • Patent number: 11521652
    Abstract: Provided is a recording tape cartridge including: a case that accommodates a reel on which a recording tape is wound and includes a reference surface that serves as a reference in an axial direction of the reel in a case where the case is loaded into a drive device; noncontact communication mediums on which individual information is recorded, the noncontact communication mediums being accommodated in the case in a state where at least two noncontact communication mediums overlap each other and having a plate shape; and a supporting portion that is formed in the case and supports the noncontact communication mediums such that the noncontact communication mediums are disposed while being inclined with respect to the reference surface at an angle of approximately 45 degrees.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: December 6, 2022
    Assignee: FUJIFILM CORPORATION
    Inventor: Yosuke Sumiya
  • Patent number: 11469509
    Abstract: A terahertz transceiver, comprising at least a first and a second antenna, wherein the first and/or the second antenna is a dipole antenna comprising a dipole section, wherein the dipole section has a gap through which light can be radiated onto the photoconductive material, and wherein a first ending of the dipole section is connected to a first feedline and a second ending of the dipole section is connected to a second feedline, the feedlines (extending with an angle to the dipole section. The first and/or the second antenna has an asymmetric design, wherein a first section of at least one of the feedlines extending on one side of the dipole section is longer than a second section of the at least one feedline extending on the other side of the dipole section and/or at least one of the feedlines extends on one side of the dipole section, only.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 11, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Björn Globisch, Roman J. B. Dietz, Thorsten Göbel
  • Patent number: 11444388
    Abstract: A radio wave measurement device includes: a transmission antenna; a reception antenna; a main circuit configured to output a transmission signal to the transmission antenna and measure a strength of a reception signal received with the reception antenna; a connection circuit disposed between the main circuit and the reception antenna, and configured to reduce flowing of the transmission signal into the reception antenna; at least one isolator disposed between the connection circuit and the reception antenna, and configured to reduce flowing of the transmission signal into the reception antenna; and a coupler disposed between the reception antenna and the at least one isolator, the coupler being configured to distribute the reception signal to the main circuit and an external signal-waveform measurement device.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: September 13, 2022
    Assignee: PANASONIC HOLDINGS CORPORATION
    Inventors: Taichi Hamabe, Masami Saito
  • Patent number: 11349195
    Abstract: A wireless device includes at least one slim radiating system having a slim radiating structure and a radio-frequency system. The slim radiating structure includes one or more booster bars. The booster bar has slim width and height factors that facilitate its integration within the wireless device and the excitation of a resonant mode in the ground plane layer, and has a location factor that enables it to achieve the most favorable radio-frequency performance for the available space to allocate the booster bar. The at least one slim radiating system may be configured to transmit and receive electromagnetic wave signals in one or more frequency regions of the electromagnetic spectrum.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: May 31, 2022
    Assignee: IGNION, S.L.
    Inventors: Jaume Anguera Pros, Norman Toporcer, Aurora Andujar Linares
  • Patent number: 11316263
    Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 26, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dingjiu Daojian, Weihong Xiao, Guoqing Xie, Xiaogang Xue
  • Patent number: 11303027
    Abstract: A flexible coil includes a flexible substrate with a plurality of holes extending through the substrate. Each hole is configured to receive at least a portion of a fastener extending through the hole. Each fastener engages the flexible substrate and an antenna loop to positively retain the antenna loop to the flexible substrate. The holes are arranged in the flexible substrate to align each antenna loop with respect to the other antenna loops mounted to the flexible substrate. The fasteners are removably mounted to the flexible substrate such that the fastener positively retains the antenna loop to the flexible substrate when mounted to the flexible substrate but allows individual antenna loops to be removed from the flexible substrate when the fastener is removed from the flexible substrate. Multiple fasteners are provided for each antenna loop and are spaced apart from each other and positioned along the length of the loop.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: April 12, 2022
    Assignee: Neocoil, LLC
    Inventors: Kyle Johnson, Michael Haase
  • Patent number: 11283296
    Abstract: Various embodiments of inductor coils, antennas, and transmission bases configured for wireless electrical energy transmission are provided. These embodiments are configured to wirelessly transmit or receive electrical energy or data via near field magnetic coupling. The embodiments of inductor coils comprise a figure eight configuration that improve efficiency of wireless transmission efficiency. The embodiments of the transmission base are configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device in contact with or adjacent to the transmission base.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: March 22, 2022
    Assignee: NuCurrent, Inc.
    Inventors: Jason Luzinski, Md. Nazmul Alam
  • Patent number: 11230864
    Abstract: A device for detecting the intention to lock or unlock a vehicle opening element integrated into a handle and including a housing, a variation in the position of a target occurring under pressure from a user on the handle. A primary coil has turns wound in a plane parallel to the plane of the surface of the target. A receiver secondary coil that receives a magnetic field induced by the primary coil and has its turns wound in a plane parallel to the plane of the turns of the primary coil and with the target at least partially intercalated between the primary and secondary coils when pressure is applied to the handle. A variation in the magnetic field received by the secondary coil is detected by a measurement device for measuring a parameter resulting from the voltage induced in the secondary coil.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 25, 2022
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Alain Fontanet, Armand Castandet
  • Patent number: 11196172
    Abstract: A phased-array antenna and a method for controlling the same are provided. The phased-array antenna includes first and second substrates between which a cavity is formed. Phase-shifting units in the cavity each includes: a power feeder located on a surface of the first substrate facing away from the second substrate and connected to a radio-frequency signal terminal, a radiator located on the surface and insulated from the power feeder, a ground electrode located on a surface of the first substrate facing towards the second substrate. The ground electrode connects to the ground signal terminal and overlaps with the power feeder and the radiator and includes a first and a second openings. A transmission electrode located on a surface of the second substrate facing the first substrate and connects to the control signal line.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: December 7, 2021
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., CHENGDU TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Kerui Xi, Tingting Cui, Zhenyu Jia, Feng Qin, Xuhui Peng, Zuocai Yang
  • Patent number: 11197366
    Abstract: A communication device includes a ground plane, an antenna array, and an EBG (Electromagnetic Band Gap) structure. The antenna array includes a plurality of antenna elements. The EBG structure includes a plurality of EBG units. The EBG units are coupled to the ground plane. The antenna array is surrounded by the EBG structure. The EBG structure is configured to suppress the front-to-back ratio of the radiation efficiency of the antenna array.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 7, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chieh-Tsao Hwang, Yen-Ting Chen
  • Patent number: 11158926
    Abstract: The invention provides an antenna structure comprising a plurality of wire segments formed in a loop. Connecting units are provided between the wire segments, each of which is switchable between a conductive state and a reactive state. With the connecting units in the conductive state a loop antenna is formed with a first (longer) signal range and with the connecting units in the reactive state an antenna structure is formed with a second (shorter) signal range. Said reactive state is adapted to introduce a phase delay between the adjacent wire segments. This enables the same antenna to be used for long range signal communication and short range communication, for example for system configuration or commissioning. The antenna structure may be used with luminaires of a lighting system.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: October 26, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Wei Hong Zhao, Peiliang Dong, You Li, Liang Shi, Gang Wang
  • Patent number: 11092635
    Abstract: An electromagnetic field probe includes one continuous conductor line having terminals at both ends of the one continuous conductor line and including 2N (N is an integer greater than or equal to 3) conductors radially extending from a point near the center of the electromagnetic field probe, the one continuous conductor line being not short-circuited in the middle and being formed by connecting an end portion of a conductor included in the 2N conductors to an end portion of another conductor included in the 2N conductors, and two conductors included in the 2N conductors are disposed at positions at which the two conductors face each other with the point near the center present between the two conductors, and end portions of the two conductors close to the point near the center are connected to each other.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 17, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tsuyoshi Kobayashi, Chiharu Miyazaki
  • Patent number: 11095027
    Abstract: Compressed closed circuit circularly polarized (CLCP) omni-directional antennas and methods of fabrication are described. Such an antenna reduces the size of conventional circularly polarized antennas while also allowing increased axial ratio. An antenna comprises a plurality of conductive elements at an angle of between 5 and 52 degrees spaced radially around a multi-element feed system. The multi-element feed system may be made from a PCB and fed from a coaxial cable. The plurality of conductive elements may contain between 2 and 8 individual conductive elements. Each element in the plurality of conductive elements is a closed loop. The antenna may be covered by a protective housing which may also further reduce the size of the antenna.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 17, 2021
    Assignee: VIDEO AERIAL SYSTEMS, LLC
    Inventor: Charles A. Greve
  • Patent number: 11041895
    Abstract: A probe antenna, a probing system, and a power density measuring method to measure a power density of a near-field electromagnetic field are disposed. The probe antenna includes a board, and a conductor transmitting line formed on the board, having a constant line width, and formed in a polygonal shape or in a closed-curve shape. The conductor transmitting line is divided into a first transmitting line and a second transmitting line that are separated from each other, and includes a first receiving port formed with one end of the first transmitting line and one end of the second transmitting line and a second receiving port formed with another end of the first transmitting line and another end of the second transmitting line.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: June 22, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Hwan Hwang, Duk Soo Kwon, Chang Hee Hyoung, Jong Hwa Kwon, Hyung Do Choi
  • Patent number: 11025094
    Abstract: A wireless power receiving device includes a first resonance circuit configured to have a first resonance frequency; a second resonance circuit configured to have a second resonance frequency lower than the first resonance frequency; and a rectifying circuit connected to the first resonance circuit and the second resonance circuit without a switch and configured to rectify power received through the first resonance circuit and the second resonance circuit.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: June 1, 2021
    Assignee: WITS Co., Ltd.
    Inventors: In Wha Jeong, Jae Suk Sung, Hugh Kim
  • Patent number: 10985458
    Abstract: An antenna apparatus includes a first radiation area, a phase adjustment area and a second radiation area. The first radiation area is disposed opposite to the second radiation area. The first radiation area is connected to one end of the phase adjustment area. The other end of the phase adjustment area is connected to the second radiation area. The first radiation area includes a feeding point of the antenna apparatus. The second radiation area includes a ground point of the antenna apparatus. The phase adjustment area is used to adjust a phase of a signal fed by the feeding point, to change a direction of a space electromagnetic field formed by an electromagnetic signal radiated by each of the first radiation area and the second radiation area.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xin Pan
  • Patent number: 10985465
    Abstract: Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 20, 2021
    Assignee: NuCurrent, Inc.
    Inventors: Vinit Singh, Ajit Rajagopalan, Alberto Peralta, Md. Nazmul Alam, Christine A. Frysz, Jason Luzinski, Glenn Riese, Jacob Babcock, Pavel Shostak
  • Patent number: 10971813
    Abstract: A switchable patch antenna comprises a planar conductor having an aperture (hole) formed in the middle of the planar conductor. Radiation of a sinusoidal signal is controlled by comparison of separate impedance values for two components that have separate impedance values. Each of the two components have one end coupled together at the terminal positioned at a center of the aperture and their other ends separately coupled to opposing edges of the aperture. A sinusoidal signal source is also coupled to the terminal positioned at the aperture's center. Further, when the impedance values of both components are substantially equivalent, radiation by the antenna of the provided signal and/or mutual coupling of other signals is disabled. Also, when an impedance value of one of the two components is substantially greater than the other impedance value of the other component, the provided signal is radiated and/or mutual coupling is enabled.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 6, 2021
    Assignee: Pivotal Commware, Inc.
    Inventors: Jay Howard McCandless, Eric James Black, Isaac Ron Bekker
  • Patent number: 10938119
    Abstract: A wireless communication apparatus includes a transmitting antenna; and a receiving antenna that receives a wireless signal transmitted from the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a plurality of circular loop antennas arranged concentrically in an identical plane, each of the plurality of circular loop antennas having a loop perimeter approximately equal to an integer multiple of one wavelength determined from a frequency in a wireless communication; and a plurality of feeding sections individually connected with the plurality of circular loop antennas. A central axis of the plurality of circular loop antennas of the transmitting antenna and a central axis of the plurality of circular loop antennas of the receiving antenna are arranged approximately on a straight line. Thus, a wireless signal is transmitted between the circular loop antennas having a loop perimeter of a transmitting side and a receiving side.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 2, 2021
    Assignee: THE UNIVERSITY OF ELECTRO-COMMUNICATIONS
    Inventors: Akira Saito, Kazuhiko Honjo, Ryo Ishikawa, Hiroto Otsuka
  • Patent number: 10923821
    Abstract: Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: February 16, 2021
    Assignee: NuCurrent, Inc.
    Inventors: Vinit Singh, Ajit Rajagopalan, Alberto Peralta, Md. Nazmul Alam, Christine A. Frysz, Jason Luzinski, Glenn Riese, Jacob Babcock, Pavel Shostak
  • Patent number: 10910716
    Abstract: An RFID antenna comprises two or more electroconductive sheets of uniform planar size, being parallel and aligned, with a space therein between. Each electroconductive sheet comprises: a feed connection point, which receives an electrical current from a feed to supply current to the electroconductive sheet; and a return connection point, opposite and parallel to the feed connection point of the electroconductive sheet, which acquires current from the electroconductive sheet and transfers current to a return. The electrical circuit pathway created from the feed to the return is equal distance for each electroconductive sheet. The two electroconductive sheets are connected together to complete a circuit that causes direction of electrical flow in the one electroconductive sheet to be opposite to direction of electric flow in the other electroconductive sheet.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: February 2, 2021
    Assignee: SATO HOLDINGS CORPORATION
    Inventor: Tai Wai Pong
  • Patent number: 10892562
    Abstract: An orthogonally polarized Yagi-like MIMO antenna system and a triangular printed wideband Yagi based MIMO antenna system, respectively, and methods for making the antennas. The orthogonally polarized Yagi-like MIMO antenna system includes two slot round loop elements on a top side of a substrate. Each slot round loop element has two input ports and two slot reflectors. For each slot round loop element, one of the two input ports is placed orthogonally to the other input port, and one of the two slot reflectors is placed orthogonally to the other slot reflector. The triangular printed wideband Yagi based MIMO antenna system includes three round loop elements on a top side of a substrate and a circular reflector on a bottom side of the substrate. Each of the three round loop elements is placed at 120° with respect to other two round loop elements and has three parasitic directors.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: January 12, 2021
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammad S. Sharawi, Syed Shahan Jehangir
  • Patent number: 10892799
    Abstract: Wireless power may be transferred between systems that are magnetically coupled in reactive near-field proximity. A magnetic field between a first antenna and a second antenna are coupled. The first and second antenna are (i) resonant at an operating frequency, and (ii) located within reactive near-field proximity. The reactive near field proximity represents a region that is less than a distance of 0.159 of the free space wavelength for the operating frequency. The wireless power provides a receiving system with a threshold amount of wireless inductive power exceeding 1 watt. Each of the first and second antennas have a spherical volume with a diameter less than 1/20 of the free space wavelength of the operating frequency and the energy dissipated to far-field radiation, per cycle, due to circulating currents from the first antenna is less than ½ the peak energy stored in the magnetic field.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: January 12, 2021
    Assignee: Electric Sky Holdings, Inc.
    Inventor: Jeffrey Greason
  • Patent number: 10892560
    Abstract: An antenna assembly includes a first antenna section, a first housing section, a second antenna section, and a second housing section. The first antenna section includes a first antenna coil portion, and a first magnetic band disposed on the first antenna coil portion. The first housing section is configured to receive the first antenna coil portion and the first magnetic band. The second antenna section includes a second antenna coil portion, and a second magnetic band disposed on the second antenna coil portion. The second housing section is configured to receive the second antenna coil portion and the second magnetic band.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 12, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Minh Dang Nguyen, Lay Wei Ang
  • Patent number: 10886616
    Abstract: Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: January 5, 2021
    Assignee: NuCurrent, Inc.
    Inventors: Vinit Singh, Ajit Rajagopalan, Alberto Peralta, Md. Nazmul Alam, Christine A. Frysz, Jason Luzinski, Glenn Riese, Jacob Babcock, Pavel Shostak
  • Patent number: 10868370
    Abstract: Circular loop antenna elements of each of a transmitting antenna 100 and a receiving antenna 200 have different perimeters of approximately integral multiples of a wavelength determined from a wireless communication frequency. The transmitting antenna 100 and the receiving antenna 200 include first circular loop antenna groups 100A and 200A concentrically disposed on the same plane and second circular loop antenna groups 100B and 200B including circular loop antenna elements of the same perimeter as that of a plurality of circular loop antenna elements of the first circular loop antenna group. An angular position of a terminal for connecting power supply units to circular loop antenna elements having the same perimeter is set to an angular position rotated by (2l+1)?/2mi (where l is any integer, and mi is a value of m1 to mN that are approximately integral multiples of a wavelength) in the first and second circular loop antenna groups.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: December 15, 2020
    Assignee: THE UNIVERSITY OF ELECTRO-COMMUNICATIONS
    Inventors: Akira Saitou, Hiroto Otsuka, Kazuhiko Honjo, Ryo Ishikawa
  • Patent number: 10862212
    Abstract: An antenna device includes a ground plane having an edge side, a monopole antenna element that communicates in a first frequency, and that has a first feeding point, a first line that extends from the first feeding point in a direction away from the edge side of the ground plane, and a second line that is coupled to the first line and extends along the edge side, a plurality of dipole feeding elements that communicate at a second frequency higher than the first frequency, and are disposed, with respect to the ground plane, in positions that match the positions of the second line with respect to the ground plane, and a plurality of reflectors that reflect electromagnetic waves radiated by the plurality of feeding elements, and are disposed respectively in correspondence to the plurality of feeding elements between the ground plane and the plurality of feeding elements.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 8, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Yamagajo, Manabu Kai, Yohei Koga, Tabito Tonooka, Hirotake Sumi
  • Patent number: 10854943
    Abstract: Systems and methods for efficient coupling to low-loss eigenmodes of a spherical waveguide bounded by the Earth's surface and its ionosphere from multiple locations within the waveguide are disclosed. One or more eigenmodes of the Earth-ionosphere waveguide may be computed based on a mathematical model incorporating electrical properties of the terrestrial surface and plasma physics of the ionospheric layer. Multiple wave guide couplers, each including an array of electrically-connected waveguide-coupling elements, may be configured at different geographic locations for coupling to the one or more eigenmodes. By adjusting relative phases and/or amplitudes of the waveguide couplers, as well as frequencies, power may be coupled into standing waves of the Earth-ionosphere waveguide. The adjustments may also account or compensate for diurnal variations of ionosphere by steering power nodes and nulls of the standing waves away from regions of potential ohmic losses.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 1, 2020
    Assignee: X Development LLC
    Inventor: Brian John Adolf
  • Patent number: 10847891
    Abstract: An antenna device includes a ground plane, and an antenna element formed on a first surface of the ground plane, the antenna element including a feed point, a first line extending from the feed point to a first end in a direction away from the first surface, a second line extending along the first surface of the ground plane from the first end of the first line to a second end, and a third line extending along the first surface of the ground plane from the second end of the second line to a third end in a direction different in plan view from an extending direction of the second line.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 24, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Yasumitsu Ban, Yohei Koga
  • Patent number: 10841676
    Abstract: An inner module assembly formed by a metal tape is installed primarily inside a wireless earphone. The inner module assembly includes a circuit loop having a first circuit board and a second circuit board, with the circuit loop being formed with plural junctions; a first metal tape which fixes the second circuit board and includes a first extension section extending to the outside of the second circuit board and having a first cut-off face; and an insulation seat which is formed on the first circuit board to enclose the circuit loop and the first metal tape, with part of the junctions and the first cut-off face being exposed on a surface of the insulation seat. Therefore, the inner module assembly is formed into a modularized design to simplify the assembly procedure of the wireless earphone.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 17, 2020
    Assignee: CONCRAFT HOLDING CO., LTD.
    Inventors: Chin-Hsing Lee, Jin-Bo Peng, Chang-Hsien Tung
  • Patent number: 10823813
    Abstract: An electromagnetic vector sensor (EMVS) system, having a plurality of EMVS devices consisting of a plurality of loop antenna elements spatially orthogonally integrated with and electrically isolated from a plurality of dipole antenna elements, mounted on a rotatably adjustable platform having a true north orientation, including active circuitry residing in antenna housings, and external executing software programs causing the active circuitry in cooperation with the EMVS device and receivers to determine angle of arrival and resolution of incoming wave vectors and polarization of incoming signals and to perform accurate high frequency geolocation signal processing; the programs which perform calibration and antenna element placement determination operations, also cause the system to collect data of known transmitted high frequency skywave signals, and estimate direction of arrival of unknown signals by detecting, resolving and measuring components of an electric field and a magnetic field at a single point.
    Type: Grant
    Filed: May 28, 2017
    Date of Patent: November 3, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Mark G. Parent, William Lee
  • Patent number: 10777906
    Abstract: An antenna device includes: a first loop antenna including a first end portion and a second end portion that are fed, and having a first length corresponding to N times a wavelength at a communication frequency; a second loop antenna having a second length corresponding to N times the wavelength; a first connecting conductor configured to couple the first loop antenna and the second loop antenna to each other at a first position of a third length corresponding to M times a quarter wavelength at the communication frequency from the first end portion of the first loop antenna; and a second connecting conductor configured to couple the first loop antenna and the second loop antenna to each other at a second position of the third length from the second end portion of the first loop antenna and different from the first position.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: September 15, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Yohei Koga
  • Patent number: 10700432
    Abstract: A loop antenna array capable of forming a clear boundary of a communication area is provided. The loop antenna array includes three loop antennas, in which a direction of a current flowing through the loop antenna arranged in the middle and a direction of a current flowing through each of the loop antennas arranged on both sides of the loop antenna arranged in the middle are opposite from each other, and the sum of magnetic moments of the three loop antennas is zero.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 30, 2020
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Ai-ichiro Sasaki, Akihiko Hirata, Souichi Oka, Fumiharu Morisawa, Osamu Kagami
  • Patent number: 10680306
    Abstract: Disclosed are various embodiments for exciting a guided surface waveguide probe to create a plurality of resultant fields that are substantially mode-matched to a Zenneck surface wave mode of a surface of a lossy conducting medium.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 9, 2020
    Assignee: CPG TECHNOLOGIES, INC.
    Inventors: James F. Corum, Kenneth L. Corum
  • Patent number: 10651898
    Abstract: A ferrite antenna is disclosed. The ferrite antenna includes a ferrite core a first main face, a second main face opposite to the first main face, and side faces connecting the first and second main faces. A first plurality of conductor wires are disposed at the first main face of the ferrite core; a second plurality of conductor wires disposed at the second main face of the ferrite core. A first connection member is disposed at a first side face of the ferrite core, the first connection member including a first plurality of connection wires; and a second connection member is disposed at a second side face of the ferrite core, the second connection member including a second plurality of connection wires; wherein the first and second pluralities of conductor wires and the first and second plurality of connection wires are interconnected in such a way that they form an antenna coil, wherein the ferrite core is disposed in the interior space of the antenna coil.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 12, 2020
    Assignee: Infineon Technologies AG
    Inventors: Walther Pachler, Gottfried Beer, Juergen Hoelzl, Juergen Schilling, Harald Witschnig
  • Patent number: 10560147
    Abstract: Disclosed are various embodiments for controlling the operation of a guided surface waveguide probe. A control system coupled to the guided surface waveguide probe can monitor and control the guided surface waveguide probe and one or more subsystems associated with the guided surface waveguide probe. Based on data collected from the guided surface waveguide probe and/or the various subsystems, the control system can adjust the operation of the guided surface waveguide probe. Human operators can interact with the control system at a location outside of a safety perimeter surrounding the guided surface waveguide probe.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 11, 2020
    Assignee: CPG TECHNOLOGIES, LLC
    Inventors: James F. Corum, Kenneth L. Corum, Jerry A. Lomax, Timothy J. Lougheed, Jr., James M. Salvitti, Jr.
  • Patent number: 10541477
    Abstract: An apparatus, e.g. a hybrid antenna, includes a plurality of antenna arrays. Each array includes antenna elements, and each array is located on a polygonal antenna body such that each array faces a different direction. An RF network includes first and second duplexers and a divider. The first duplexer is configured to split a received multifrequency drive signal into a first component having a first frequency and a second component having a second frequency. The divider is configured to split the first component into attenuated portions, and to direct one of the attenuated portions to a first of the plurality of antenna arrays. The second duplexer is configured to combine another of the attenuated portions with the second drive signal component to form a combined drive signal component, and to direct the combined drive signal component to a second of the antenna arrays.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 21, 2020
    Assignee: Nokia Shanghai Bell Co., Ltd.
    Inventor: Charles M Powell
  • Patent number: 10530059
    Abstract: A folding dipole antenna, a wireless communication module in which folding dipole antenna is incorporated, and methods for constructing the folding dipole antenna and the wireless communications module. The selection of the components of the folding dipole antenna and the wireless communication module and the arrangement of these components are such that wireless transmission performances are not or less affected by the installation positions on a home appliance.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: January 7, 2020
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Shaoyong Wang, Yuming Song, Feng Dai
  • Patent number: 10505257
    Abstract: An antenna device incorporated in an electronic apparatus to communicate with an external apparatus via an electromagnetic field signal includes a first conductor provided inside a housing of the electronic apparatus and opposing the external apparatus, a loop antenna having an antenna coil conductively coupled to the external apparatus and coiling thereon, a sheet-like second conductor provided as being spaced with a predetermined space from the first conductor and partially overlapping or making contact with a surface of the loop antenna opposite to a surface opposing the external apparatus, and a sheet-like third conductor provided between the first conductor and the second conductor and having one end overlapping or making contact with the first conductor and other end partially overlapping or making contact with the second conductor.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: December 10, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Katsuhisa Orihara, Norio Saito, Akihiro Fukuda, Manabu Suzuki, Hiroyuki Ryoson, Masayoshi Kanno, Masahiro Kobo
  • Patent number: 10505254
    Abstract: A near field communications (NFC) transponder includes a transmit circuit coupled to a transmit antenna and a receive circuit coupled to a receive antenna. The transmit/receive antennae are configured such that no signal is induced on the receive antenna by operation of the transmit antenna. Advantageously, this permits continued reception by the receive antenna while the transmit antenna is used for transmission using active load modulation.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 10, 2019
    Assignee: STMicroelectronics, Inc.
    Inventor: Mohammad Mazooji
  • Patent number: 10498174
    Abstract: Systems and methods for efficient coupling to low-loss eigenmodes of a spherical waveguide bounded by the Earth's surface and its ionosphere are disclosed. One or more eigenmodes of the Earth-ionosphere waveguide may be computed based on a mathematical model incorporating electrical properties of the terrestrial surface and plasma physics of the ionospheric layer. An array of electrically-connected waveguide-coupling elements may be configured for coupling to the one or more eigenmodes. By adjusting relative phases and/or amplitudes of the waveguide-coupler elements, as well as frequencies, the electrical size of the array may be made much larger than its physical size, and substantial electromagnetic energy may be targeted to preferentially excite the one or more eigenmodes. The adjustments may also account or compensate for non-homogeneous propagation properties of the ionosphere, and help reduce ohmic losses in the ionosphere.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 3, 2019
    Assignee: X Development LLC
    Inventor: Brian John Adolf
  • Patent number: 10483654
    Abstract: An antenna platter comprises a plurality of antenna elements arranged as a thin array according to a polygonal grid. The polygonal grid comprises a plurality of paired polygons arranged symmetrically about a central polygon of the grid. In each polygon of the grid, the plurality of antenna elements is arranged in symmetrical pairs about a center point such that the first and second antenna elements of each symmetrical pair are complex conjugates of one another.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 19, 2019
    Assignee: The Boeing Company
    Inventors: Paul C. Werntz, Dennis L. Gould, Patrick K. Bailleul, Brian M. Park, Andre C. Houle, Raenaurd D. Turpin
  • Patent number: 10476172
    Abstract: Provided are an antenna, an antenna array, and a wireless communication device with which it is possible to achieve size reduction while suppressing degradation in radiation efficiency. This antenna comprises two antenna elements and a conductor reflection plate. The antenna element includes: a C-shaped conductor which is a substantially C-shaped conductor in which a split part is formed such that a portion of an annular conductor is made discontinuous; and a conductor power feed line that is electrically connected to one of the two parts of the C-shaped conductor that oppose one another across the split part, the conductor power feed line constituting an electric circuit for feeding power to the C-shaped conductor. The two antenna elements are arranged substantially orthogonal to one another such that, when the elements are projected onto the conductor reflection plate, one antenna element and a portion of the other antenna element overlap one another.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 12, 2019
    Assignee: NEC CORPORATION
    Inventors: Keishi Kosaka, Hiroshi Toyao
  • Patent number: 10476132
    Abstract: A dual-polarized antenna in which two antenna elements are highly integrated and the size of the whole antenna is reduced while suppressing coupling between the two antenna elements without having the two antenna elements overlap each other is provided. An antenna (10) includes a conductive reflector (101) and two antenna elements (102, 103) (antenna elements) that are arranged to be spaced apart from each other. As shown in FIG. 3, in a projected view on the conductive reflector (101), longitudinal directions of the two antenna elements (102, 103) are substantially orthogonal to each other. One of the end parts (110) of the antenna element (103) in the longitudinal direction is positioned at an approximate center (109) (part around the center) of the antenna element (102) in the longitudinal direction.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 12, 2019
    Assignee: NEC Corporation
    Inventors: Keishi Kosaka, Hiroshi Toyao
  • Patent number: 10423870
    Abstract: Various embodiments provide a communication module having a carrier, a loop antenna, a modulation circuit which is coupled to the loop antenna and is configured to modulate or demodulate signals which are received or transmitted using the loop antenna, and an impedance matching circuit for matching the impedance of the loop antenna to the input impedance of the modulation circuit. The modulation circuit and the impedance matching circuit are arranged inside the loop antenna on or in the carrier.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: September 24, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Martin Buchsbaum, Josef Gruber, Juergen Hoelzl, Frank Pueschner, Peter Stampka
  • Patent number: 10396435
    Abstract: Disclosed herein is an antenna device that includes a planar coil pattern having first, second, third and fourth sections, the first and second sections being opposite to each other, and the third and fourth sections being opposite to each other, and a metal layer having at least one aperture. A part of the first section and a part of the second section overlap the metal layer, and a remaining part of the first section and a remaining part of the second section overlap the aperture. A part or an entirety of both the third and fourth sections overlaps the metal layer or the aperture.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 27, 2019
    Assignee: TDK CORPORATION
    Inventors: Toshifumi Komachi, Toshio Tomonari, Hirohumi Asou
  • Patent number: 10380478
    Abstract: In a wireless communication device, an impedance matching circuit includes a first layered coil conductor one end of which is connected to a first I/O terminal, the first layered coil conductor includes loop conductors including a plurality of layers, and a second layered coil conductor one end of which is connected to the other end of the first layered coil conductor and the other end of which is respectively connected to a second I/O terminal, the second layered coil conductor includes loop conductors including a plurality of layers. On the surface of the wireless communication device, first and second terminal electrodes are connected via first and second in-plane conductors and first and second inter-layer conductors to any of the loop conductors of the first and second layered coil conductors.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: August 13, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Noboru Kato
  • Patent number: 10283856
    Abstract: The present invention relates to a monopole antenna comprising: a radiator arranged in the center of a front surface of a dielectric substrate, and including a plurality of loops formed in a structure in which a Mobius strip is cut at least one time along the circumference; a first bridge for sequentially connecting one end of each loop; and a second bridge for connecting via-holes respectively formed at one end of the innermost loop and the outermost loop, thereby obtaining an effect of enabling an antenna, to which a quasi-Mobius strip and a via-hole structure are applied, to be miniaturized.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: May 7, 2019
    Inventor: Mee Jeong Kim