Circular Loop Patents (Class 343/732)
  • Patent number: 11502393
    Abstract: Provided is an electronic device.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seongjin Park, Dongyeon Kim, Hosaeng Kim, Sumin Yun, Woomin Jang, Myunghun Jeong, Jehun Jong, Jaehoon Jo
  • Patent number: 11108142
    Abstract: An antenna includes a cylindrical substrate, an arc-shaped outer metal strip formed on an outer surface of the cylindrical substrate, and an arc-shaped inner metal strip formed on an inner surface of the cylindrical substrate. A cross section of the cylindrical substrate forms a complete circle with a center angle equal to 360 degrees or forms an arc with a center angle less than 360 degrees. The cylindrical substrate, the arc-shaped outer metal strip, and the arc-shaped inner metal strip have a common central axis.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 31, 2021
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Shaoyong Wang, Yuming Song, Yuan Zhong
  • Patent number: 10497552
    Abstract: An ion manipulation device comprises a plurality of electrode rings arranged longitudinally adjacent to each other and defining a central axis therethrough. At least one electrode ring comprises a plurality of electrodes arranged in a first planar pattern. Electrodes are configured to periodically receive a voltage to generate a circular traveling wave that rotates around the electrodes of each electrode ring to confine ions within an interior of the apparatus.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 3, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Yehia M. Ibrahim, Aneesh Prabhakaran, Sandilya V. B. Garimella, Richard D. Smith, Ailin Li
  • Patent number: 10340598
    Abstract: A loop antenna array that can form a linear and clear communication area boundary is provided. The loop antenna array includes two loop antennas. Currents flow through the loop antennas in opposite directions from each other. In other words, viewing in a direction passing through each of the loop antennas, at a timing when a positive voltage is applied to a signal terminal of an alternating-current source, a clockwise current flows through one loop antenna while a counterclockwise current flows through the other loop antenna. Conversely, at a timing when a negative voltage is applied to the signal terminal of the alternating-current source, a counterclockwise current flows through one loop antenna while a clockwise current flows through the other loop antenna.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: July 2, 2019
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Ai-ichiro Sasaki, Akihiko Hirata, Fumiharu Morisawa, Souichi Oka, Osamu Kagami
  • Patent number: 9705200
    Abstract: A traveling-wave loop antenna based on a metal ring cavity for generating a radio frequency OAM beam includes a main structure which is the metal ring cavity whose top surface has an annular slot circumferentially opened. Two openings, ¼ of a perimeter of the metal ring cavity apart, are two excitation source ports of the antenna, for connecting a metal waveguide. When the two ports are inputted with microwave sources having the same frequency and a phase difference of ±90°, an electromagnetic field in the metal ring cavity exhibits a traveling-wave distribution propagating circumferentially clockwise or counterclockwise. The annular slot constitutes the antenna. A reasonable design of a size of the metal ring cavity and a position of the annular slot realizes a conversion from a microwave guided-wave mode to an OAM mode and a generation of the radio frequency OAM beams with different orders l in free space.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 11, 2017
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Shilie Zheng, Xianmin Zhang, Hao Chi, Xiaofeng Jin
  • Patent number: 8981936
    Abstract: The present invention relates to a method of manufacturing a web of a plurality of conductive structures which may be used for example to produce an antenna, electronic circuit, photovoltaic module or the like. The method involved simultaneously patterning at least one pattern in a conductive layer using a plurality of registration marks. The registration marks serve to align and guide the creation of the plurality of conductive structures. Optical brighteners may also be utilized within the adhesive layer and the registration marks of the present invention in order to detect the location where conductive structures are to be placed.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: March 17, 2015
    Assignee: Avery Dennison Corporation
    Inventors: Ian J. Forster, Christian K. Oelsner, Robert Revels, Benjamin Kingston, Peter Cockerell, Norman Howard
  • Patent number: 8907680
    Abstract: A voltage detector for detecting a voltage generated in a second resonant coil that is disposed to face a first resonant coil and that performs at least one of electric power transmission and electric power reception to and from the first resonant coil in a contactless manner by means of electromagnetic resonance includes: a first high-impedance element having one end connected to one end of the second resonant coil; a second high-impedance element having one end connected to the other end of the second resonant coil; a low-impedance element connected between the other end of the first high-impedance element and the other end of the second high-impedance element and having an impedance smaller than each of those of the first and second high-impedance elements; and an output terminal for outputting a signal associated with a voltage applied across the low-impedance element.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: December 9, 2014
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Sakakibara, Shinji Ichikawa
  • Patent number: 8847832
    Abstract: The multiple polarization loop antenna includes a circularly polarized loop antenna, which may utilize a loop electrical conductor and two signal feedpoints along the loop electrical conductor separated by one quarter of the length of the loop circumference for a signal feedpoint phase angle input difference of 90 degrees. Each of the signal feedpoints may include a loop discontinuity, so that at least one signal source coupled thereto provides circular polarization from the loop electrical conductor. The circularly polarized loop antenna provides an increase in gain and decrease in size relative to the dipole turnstile. It can provide two orthogonal polarizations from two isolated ports, and the polarizations may be dual linear or dual circular.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: September 30, 2014
    Assignee: Harris Corporation
    Inventors: Francis Eugene Parsche, Dennis Lee Tebbe
  • Patent number: 8711897
    Abstract: A split ring-resonator includes a substrate, an inner-trench or cavity formed into the substrate, the inner trench or cavity including a split, and an outer trench or cavity formed into the substrate around the inner trench or cavity, the outer trench or cavity including another split disposed at an opposite end of the split in the inner trench or cavity, wherein the inner trench or cavity and the outer trench or cavity are configured to receive an electrically conductive gas and/or plasma to form a split-ring resonator.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: April 29, 2014
    Assignee: Miles Technologies, LLC
    Inventor: Patrick Allen Miles
  • 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: 8643556
    Abstract: Aerial for the reception of circularly polarized satellite radio signals comprising at least one substantially horizontally oriented conductor loop arranged over a conductive base surface, having an assembly for electromagnetic excitation of the conductor loop connected to an aerial connection. The conductor loop is designed as a loop emitter by a polygonal or circularly closed loop extending in a horizontal plane of height h above the conductive base surface. The loop emitter forms a resonant structure and is electrically excited by the electromagnetic exciter in such a way that on the loop the current distribution of a travelling line wave occurs in one direction of rotation only, of which the phase difference over one revolution is M*2?, where M is an integer and has at least a value of M=2.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 4, 2014
    Assignee: Delphi Delco Electronics Europe GmbH
    Inventors: Stefan Lindenmeier, Heinz Lindenmeier, Jochen Hopf, Leopold Reiter
  • Publication number: 20130278473
    Abstract: An integrated Multi-Port Driven (MPD) antenna that can be driven at many points with different signals. An integrated MPD radiating source utilizing an 8-phase ring oscillator and eight power amplifiers to drive the MPD antenna at 161 GHz with a total radiated power of ?2 dBm and a single element EIRP of 4.6 dBm has been demonstrated in silicon with single lobe well behaved radiation patterns closely matching simulation.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 24, 2013
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Steven BOWERS, Seyed Ali Hajimiri
  • Patent number: 8493183
    Abstract: The wireless tag includes an antenna conductor; a first power-supply conductor which is electromagnetic-inductively coupled with the antenna conductor; and a second power-supply conductor which is loop-shaped and which is electrically coupled with the first power-supply conductor.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: July 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Takashi Yamagajp, Toru Maniwa
  • Patent number: 8242967
    Abstract: A multiple-input multiple-output (MIMO) device includes a substrate, a shielding cover and a MIMO antenna. The shielding cover is positioned on the substrate, and includes a plurality of sidewalls. The MIMO antenna includes a first solid antenna, a second solid antenna, and a plane antenna. The first solid antenna and the second solid antenna are electrically connected to two ends of one sidewall of the shielding cover, respectively. The first plane antenna is configured on the substrate, and disposed between the first solid antenna and the second solid antenna.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 14, 2012
    Assignees: Ambit Microsystems (Shanghai) Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Xue-Dong Jiang, Su-Qin Li, Jian-Feng Xiao, Ming-Jiang Fan
  • Patent number: 8232929
    Abstract: A microwave antenna for wireless interconnection of automation devices has a first printed circuit board, on which a first conductor loop is arranged as a printed conductor track. A second printed circuit board having a second conductor loop in the form of a printed conductor track is arranged transversely with respect to the first printed circuit board. The second printed circuit board is attached to the first printed circuit board. The conductor loops are connected to a common feed connection. A bypass line connects one end of each the first and the second conductor loops.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: July 31, 2012
    Assignee: Pilz GmbH & Co. KG
    Inventors: Alois Ineichen, Thorsten Godau
  • Publication number: 20120050120
    Abstract: Aerial for the reception of circularly polarised satellite radio signals comprising at least one substantially horizontally oriented conductor loop arranged over a conductive base surface, having an assembly for electromagnetic excitation of the conductor loop connected to an aerial connection. The conductor loop is designed as a loop emitter by a polygonal or circularly closed loop extending in a horizontal plane of height h above the conductive base surface. The loop emitter forms a resonant structure and is electrically excited by the electromagnetic exciter in such a way that on the loop the current distribution of a travelling line wave occurs in one direction of rotation only, of which the phase difference over one revolution is M*2?, where M is an integer and has at least a value of M=2.
    Type: Application
    Filed: April 21, 2011
    Publication date: March 1, 2012
    Applicant: DELPHI DELCO ELECTRONICS EUROPE GMBH
    Inventors: STEFAN LINDENMEIER, HEINZ LINDENMEIER, JOCHEN HOPF, LEOPOLD REITER
  • Patent number: 7969370
    Abstract: A fluidic antenna is described, using an electromagnetic energy coupler, a non-metallic container coupled to the electromagnetic energy coupler, a fluid having charged particles moving through the non-metallic container at a predetermined rate, and a charge focuser disposed about the non-metallic container, wherein the electromagnetic energy coupler is configured to couple energy between the fluid and at least one of a transmitter and receiver, and the charge focuser is configured to adjust a cross sectional area of charged particles in the fluid to result in a fluid characteristic impedance that approaches that of a surrounding medium, thereby enabling at least one of launching and receiving electromagnetic energy.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: June 28, 2011
    Assignee: The United States of America as repesented by the Secretary of the Navy
    Inventors: Vincent V. Dinh, Eric W. Hendricks
  • Patent number: 7865152
    Abstract: The disclosed system, device and method for a signal modulation apparatus generally includes a first signal generator suitably configured to generate a first continuous wave radio frequency (RF) signal, and a second signal generator suitably configured to generate a second continuous wave RF signal. A dual-circular polarized antenna may be adapted to receive the first continuous wave RF signal into a right-hand port and the second continuous wave RF signal into a left-hand port, where the signals are combined into a modulated RF signal in the dual-circular polarized antenna.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: January 4, 2011
    Assignee: Raytheon Company
    Inventor: Kenneth Brown
  • Publication number: 20100207829
    Abstract: The antenna apparatus may include a planar, electrically conductive, slot antenna element having a geometrically shaped opening therein defining an inner perimeter, and a pair of spaced apart signal feedpoints along the inner perimeter separated by a distance of one quarter of the inner perimeter to impart a traveling wave current distribution. The inner perimeter of the planar, electrically conductive, slot antenna element may be equal to about one operating wavelength thereof. The antenna apparatus may provide at least one of linear, circular, dual linear and dual circular polarizations, and it may provide an in situ or conformal antenna for vehicles or aircraft.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Applicant: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Publication number: 20100207830
    Abstract: The planar antenna apparatus may include a planar, electrically conductive, patch antenna element having a geometric shape defining an outer perimeter, and a pair of spaced apart signal feedpoints along the outer perimeter of the planar, electrically conductive, patch antenna element and separated by a distance of one quarter of the outer perimeter to impart a traveling wave current distribution. The outer perimeter of the planar, electrically conductive, patch antenna element may be equal to about one operating wavelength thereof. The apparatus may provide dual circular or dual linear polarization. The planar patch element may relate to a full wave loop antenna as a compliment.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Applicant: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 7760144
    Abstract: An integrated circuit structure includes a semiconductor chip including a top surface, a bottom surface, and a side surface; a metal seal ring adjacent the side surface; and an antenna including a seal-ring antenna. The seal-ring antenna includes at least a portion of the metal seal ring.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: July 20, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chung-Long Chang, David Ding-Chung Lu, Shine Chung
  • Patent number: 7710325
    Abstract: Provided is an antenna comprising a first dielectric resonator antenna operative within a first frequency band, a second dielectric resonator antenna operative within a second frequency band, and a feeding structure electrically coupled to the first and second dielectric resonator antennas to receive and transmit signals at the first and second frequency bands through the first and second dielectric resonator antennas.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: May 4, 2010
    Assignee: Intel Corporation
    Inventor: Dajun Cheng
  • Patent number: 7659864
    Abstract: A broadband antenna has a substrate, a coupling conductor, a conductor string, a ground conductor and a ground plane. The coupling conductor has a first coupling member and a second coupling member being separated from each other. The conductor string and the ground conductor are connected to the second coupling member. The conductor string extends along a direction opposite to the second coupling member. The ground conductor is connected to the ground plane. The broadband antenna uses the coupling conductor and the ground conductor to adjust input impedance for impedance match. The conductor string functions as a multi level resonance circuit to increase impedance bandwidth.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 9, 2010
    Assignee: Advanced Connectek Inc.
    Inventors: Wen-Shyang Chen, Yao-Yuan Chang, Chih-Ren Hsiao, Tsung-Wen Chiu, Fu-Ren Hsiao
  • Patent number: 7579994
    Abstract: An antenna includes a central loop and four adjacent coplanar eccentric loops. The central loop creates a magnetic field that is essentially perpendicular to the antenna. The centres of gravity of the four eccentric loops are essentially located on the periphery of the central loop and the eccentric loops are supplied in such a way as to predominantly create a rotating field in a plane parallel to the plane of the antenna. The eccentric loops can be associated in pairs of non-adjacent loops in such a way as to generate electromagnetic fields of opposite phases in the respective pair. In this way, the two loops of a pair can be connected such that the same current flows through them in opposite trigonometric directions. A radiofrequency generator can supply first and second excitation signals alternately on two outputs, respectively to the central loop and to the eccentric loops.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: August 25, 2009
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Sylvain Bacquet, Thierry Thomas, Elisabeth Crochon, François Vacherand
  • Patent number: 7382320
    Abstract: The present invention relates to a circularly polarized antenna and, more particularly, to a compact circularly polarized antenna for transmitting and receiving a circularly polarized signal. The circularly polarized antenna comprises a substrate having an upper surface and a lower surface; a signal distributor; an antenna for transmitting and receiving the circularly polarized signal; and a plurality of support units. The upper surface of the substrate comprises a plurality of slots. One end of each slot overlaps with the respective ends of the other slots at a central region. The lower surface of the substrate comprises a coupling unit being electrically connected with the signal distributor, and the center of the coupling unit corresponds to the central region.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: June 3, 2008
    Assignee: Tatung Company and Tatung University
    Inventors: The-Nan Chang, Chun-Ming Lin
  • Patent number: 7362272
    Abstract: The present invention relates to techniques to excite a circularly polarized antenna and, more particularly, to a circularly polarized antenna having a QUAD-EMC unit structure.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: April 22, 2008
    Assignees: Tatung Company, Tatung University
    Inventors: The-Nan Chang, Shih-Wei Lin
  • Patent number: 7126556
    Abstract: A digital indoor antenna device having a casing, a pivotal seat, a circular antenna having two ends and a PCB in the casing. The pivotal seat attached to the casing has two mounting holes respectively in which the two ends of circular antenna are mounted. The circular antenna rotates on the casing to adjust the horizontal receiving angle. Therefore, the circular antenna device can receive larger intensity of horizontal polarized signals. In addition, the pivotal seat can be pivotally connected to the casing, so the circular antenna can rotate horizontally on the casing to search for different channel signals.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: October 24, 2006
    Assignee: Trans Electric Co., Ltd.
    Inventor: Cheng-Si Wang
  • Patent number: 7061441
    Abstract: A stub-loop based antenna doublet array having an offset feed and adjustably positioned stub-loops is provided that enables improved isolation of the horizontal versus vertical polarization characteristics from the impedance. Consequently, conventional VSWR adjustments or tuning can be accomplished without significantly impacting the polarization ratios or pattern.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 13, 2006
    Assignee: SPX Corporation
    Inventor: John L. Schadler
  • Patent number: 6992630
    Abstract: The antenna includes a substrate, such as a dielectric material, and an electrically conductive circular ring on the substrate and having an outer diameter and an inner diameter concentrically arranged. The outer diameter is less than 1/10 an operating wavelength, and preferably about 1/20th, so that the antenna is electrically small relative to the wavelength. The inner diameter is in a range of ?/6 to ?/2 times the outer diameter, and preferably is ?/4 times the outer diameter to enhance the gain relative to its area.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: January 31, 2006
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 6879299
    Abstract: The present invention provides an antenna loop and its layout for low-level digital tablets. The antenna loop for low-level digital tablets in the present invention consists of enameled wire; the layout comprises a single antenna loop consisting of enameled wire. Each antenna loop comprises a plurality of close circles. Furthermore, the circles of odd ordinal numbers comprise odd sections, for instance, the third circle comprises three sections; the circles of even ordinal numbers comprise even sections, for instance, the fourth circle comprises four sections; each section comprises induction areas of substantially the same size. Furthermore, the final section is an open section so that through which the second terminal of the enameled wire loop can stretch out and electrically couple with the ground wire.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: April 12, 2005
    Assignee: UC-Logic Technology Corp.
    Inventors: Tzong Wei Uen, Shun Bin Lin
  • Publication number: 20010020920
    Abstract: The present invention provides a miniaturized circular polarized microstrip antenna that employs a dielectric substrate having a large relative dielectric constant so that a desired resonance frequency and a desired axis ratio are obtained. In a circular polarized wave microstrip antenna 1 having a nearly square dielectric substrate 4 with a nearly square patch electrode 2 formed on one surface thereof, and a ground electrode 3 formed on almost the whole of another surface thereof, triangular first notches 2a and 2b serving as retraction-separation elements are respectively formed 135 and 315 degrees with respect to a direction toward a feeding point 5 from the center of the patch electrode 2, which is defined as 0, and within the first notch 2b, a first adjustment electrode 2c extending outwardly from an edge of the patch electrode 2 is formed.
    Type: Application
    Filed: February 15, 2001
    Publication date: September 13, 2001
    Applicant: Alps Electric Co., Ltd.
    Inventor: Makoto Shigihara
  • Patent number: 4160978
    Abstract: An antenna including a conductive support for supporting a plurality of radiating elements in line next to one another above the conductive support and transmission lines serially connecting the radiating elements. The radiating elements of the loop or helix type with a turn length of substantially one wavelength at the operating frequency and configured to support the equivalent of a ring of current with a traveling wave to radiate circularly polarized radiation.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: July 10, 1979
    Inventor: Raymond H. DuHamel