Including Magnetic Material Patents (Class 343/787)
  • Patent number: 10370299
    Abstract: Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 6, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Bowie Cruickshank, Michael David Hill
  • Patent number: 10333204
    Abstract: An antenna component is disclosed. In an embodiment the antenna component including a first, second and third electrical conductors and a magnetic core integrally embodied having different section, wherein the first, second and third electrical conductors are located at different sections of the magnetic core.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 25, 2019
    Assignee: EPCOS AG
    Inventors: Felipe Jerez, Anneliese Drespling, Elmar Walter, Stephan Buehlmaier, Joern Schliewe
  • Patent number: 10312580
    Abstract: A tunable antenna structure including a substrate and at least one radiating element configured on the substrate. The antenna structure further includes a plurality of nanomaterial-based phase changing material (PCM) switches configured in the radiating element so that current flowing through the radiating element passes through the PCM switches. The antenna structure also includes a heating device, such as a laser or a resistive heater, configured relative to the PCM switches and being operable to selectively heat the PCM switches to switch the PCM switches between an on crystalline state and an off amorphous state, where once the heat is removed, the PCM switch remains in the particular state.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: June 4, 2019
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Xing Lan, Vesna Radisic, Robert Miles Young, Nabil A. El-Hinnawy
  • Patent number: 10289167
    Abstract: A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing including a plurality of steps. The plurality of mounting steps are formed by at least removing a preselected amount of housing material at predetermined locations on the interior surface. At least some of the mounting steps are used to mount at least some of the plurality of internal operating components housing.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 14, 2019
    Assignee: Apple Inc.
    Inventors: Stephen R. McClure, Joshua D. Banko, Kevin D. Gibbs, Benjamin M. Rappoport, John P. Ternus
  • Patent number: 10236110
    Abstract: A magnetic core includes alloy phases 20 each made of Fe-based soft magnetic alloy grains including M1 (wherein M1 represents both elements of Al and Cr), Si, and R (wherein R represents at least one element selected from the group consisting of Y, Zr, Nb, La, Hf and Ta), and has a structure in which the alloy phases 20 are connected to each other through a grain boundary phase 30. In the grain boundary phase 30, an oxide region is produced. The oxide region includes Fe, M1, Si and R and further includes Al in a larger proportion by mass than the alloy phases 20.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: March 19, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Kazunori Nishimura, Toshio Mihara, Shin Noguchi
  • Patent number: 10222433
    Abstract: The present invention provides a receive coil unit (140) comprising a receive coil array (142) for use in a magnetic resonance imaging system (110) with multiple antenna units (144) sensitive to magnetic resonance signals, i.e. antenna units (144) sensitive to B-field signals, whereby each antenna unit (144) comprises a coil element (146) sensitive to B-field signals, and each antenna unit (144) comprises an E-field antenna (148) sensitive to E-field signals. The present invention also provides a magnetic resonance imaging system (110) comprising a receive coil unit (140) with a receive coil array (142) having multiple antenna units (144) sensitive to magnetic resonance signals, i.e. antenna units (144) sensitive to B-field signals, whereby the receive coil unit (140) is provided as a receive coil unit (140) as specified above.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: March 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Christoph Leussler, Daniel Wirtz
  • Patent number: 10224604
    Abstract: An antenna device includes two conductor surfaces at opposing positions with a space interposed between the conductor surfaces, a first connection conductor connecting the two conductor surfaces galvanically at one location, and an antenna coil arranged in proximity to the first connection conductor. The antenna coil is arranged at a position at which the antenna coil causes an induced current to flow through the first connection conductor by electromagnetic induction. Currents in the opposite directions flow through peripheral edge portions of the two conductor surfaces, so that a magnetic field is radiated from A space across which the two conductor surfaces oppose each other. This enables a conductor surface defined by a metal plate or the like to be used as a radiation element without providing a slit or an opening in the metal plate so as to avoid problems of a decrease in mechanical strength, design restrictions, and a decrease in an electric field shielding effect.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: March 5, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Noboru Kato
  • Patent number: 10218072
    Abstract: An antenna apparatus utilizing bulk acoustic wave (BAW) resonances to transfer dynamic strain across multiple layers, which include piezoelectric layers coupled to magnetostrictive material layers. In at least one embodiment, a piezoelectric layer is coupled to a magnetostrictive layer to which another layer having similar acoustic properties as the piezoelectric layer is coupled as an inertial buffer. These multiple layers comprise a strain media to provide a vertical multiferroic coupling which couples electric field, magnetic field, and mechanical fields. Electrodes are coupled to excite one of the piezoelectric layers for injecting acoustic waves into the structure from which electromagnetic radiation is generated out of the plane.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 26, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yuanxun Ethan Wang, Gregory P. Carman, Robert Norris Candler, Scott Keller
  • Patent number: 10205247
    Abstract: An antenna module (22) has an antenna (21) that is formed on a ferrite substrate (31), and the ferrite substrate is positioned within a small direct current (DC) magnetic field. The magnetic loss tangent of the ferrite is controlled by application of the small DC magnetic field, thereby improving antenna radiation efficiency and increasing the bandwidth of the antenna.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: February 12, 2019
    Assignee: The Board of Trustees of the University of Alabama for and on behalf of the University of Alabama
    Inventors: Yang-Ki Hong, Jae-Jin Lee
  • Patent number: 10176912
    Abstract: A magnetic core has a structure in which alloy phases 20 each including Fe, Al, Cr and Si are dispersed and any adjacent two of the alloy phases 20 are connected to each other through a grain boundary phase 30. In this grain boundary phase 30, an oxide region is produced which includes Fe, Al, Cr and Si, and includes Al in a larger proportion by mass than the alloy phases 20. This magnetic core includes Al in a proportion of 3 to 10% both inclusive by mass, Cr in a proportion of 3 to 10% both inclusive by mass, and Si in a proportion more than 1% and 4% or less by mass provided that the sum of the quantities of Fe, Al, Cr and Si is regarded as being 100% by mass; and includes Fe and inevitable impurities as the balance of the core.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 8, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Kazunori Nishimura, Toshio Mihara, Shin Noguchi
  • Patent number: 10166707
    Abstract: The present invention provides an RFID device and manufacturing method. The RFID device comprises a first housing, an antenna module, and a second housing. The antenna module arranged on the first housing comprises a base substrate, and an antenna layer, sticking on an outer surface of the base substrate. The second housing is formed to couple to the first housing by an injection molding process so that the antenna module is arranged between the first and second housings.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 1, 2019
    Assignee: SECURITAG ASSEMBLY GROUP CO., LTD
    Inventors: Cheng hung Chang, Ching Mei Chi, Chun Jun Chuang, Ya Chi Shen, Tian lin Yan
  • Patent number: 10128177
    Abstract: Embodiments of the present disclosure describe a multi-layer package with antenna and associated techniques and configurations. In one embodiment, an integrated circuit (IC) package assembly includes a first layer having a first side and a second side disposed opposite to the first side a second layer coupled with the first side of the first layer, one or more antenna elements coupled with the second layer and a third layer coupled with the second side of the first layer, wherein the first layer is a reinforcement layer having a tensile modulus that is greater than a tensile modulus of the second layer and the third layer. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: November 13, 2018
    Assignee: INTEL CORPORATION
    Inventors: Telesphor Kamgaing, Adel A. Elsherbini, Torrey W. Frank
  • Patent number: 10128029
    Abstract: An object or technical task of the present invention is to provide a ferrite sintered sheet having a dense ferrite microfine structure which has a large ?? value, a small ?? value, and a small temperature-dependent change of the ?? value thereof. The present invention relates to a ferrite ceramics having a composition comprising 47.5 to 49.8 mol % of Fe2O3, 13.5 to 19.5 mol % of NiO, 21 to 27 mol % of ZnO, 7.5 to 12.5 mol % of CuO and 0.2 to 0.8 mol % of CoO, all of the molar amounts being calculated in terms of the respective oxides, the ferrite ceramics further comprising 0.2 to 1.4% by weight of SnO2 and 0.005 to 0.03% by weight of S and having a density of 5.05 to 5.30 g/cm3; and a ferrite sintered sheet comprising the ferrite sintered plate on a surface of which a groove or grooves are formed, and an adhesive layer and/or a protective layer formed on the ferrite sintered plate.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: November 13, 2018
    Assignee: TODA KOGYO CORP.
    Inventors: Yoji Okano, Tomohiro Dote, Makoto Sadai, Shingo Honda, Katsumi Nakai, Yasuhiko Fujii
  • Patent number: 10102969
    Abstract: A method of manufacturing an electronic component having high inductance (L) and an excellent quality (Q) factor and direct current (DC)-bias characteristics includes forming a magnetic body in which internal coil parts are embedded, and forming a cover part including a magnetic metal plate on at least one of upper and lower portions of the magnetic body.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 16, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Moon Soo Park, Jong Sik Yoon, Kyung Han Ahn, Dong Hwan Lee, Hye Yeon Cha, Jong Ho Lee
  • Patent number: 10049237
    Abstract: Embodiments provide a method for sending a message from an RFID transponder to a reader during a transmission frame using active load modulation, the method comprising. An encoded bit signal has a first logic level during first time segments within the transmission frame and a second logic level during second time segments within the transmission frame. The first time segments include an initial time segment of the transmission frame. A transmission signal is generated based on the encoded bit signal. The transmission signal is generated having a first phase depending on the first logic level during the first time segments, a second phase depending on the second logic level during the second time segments, and the second phase during a time interval preceding the transmission frame.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 14, 2018
    Assignee: STMicroelectronics International N.V.
    Inventors: Kosta Kovacic, Albin Pevec, Maksimiljan Stiglic
  • Patent number: 9960607
    Abstract: An apparatus for wirelessly transferring power is provided. The apparatus comprises a first coupler, a second coupler, and a third coupler overlapping at least the first coupler. The apparatus further comprises a ferrimagnetic structure comprising a first portion disposed under the first coupler, a second portion disposed under the second coupler, and a gap defined between the first coupler and the second coupler, the gap physically separating the first portion from the second portion. One or both of the first portion and the second portion comprises a first plurality of ferrimagnetic strips interleaved with a second plurality of ferrimagnetic strips configured to attenuate a magnetic flux passing between the first and second couplers. The first plurality of ferrimagnetic strips are interleaved with the second plurality of ferrimagnetic strips under at least a portion of the first coupler that is overlapped by the third coupler.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 1, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mickel Bipin Budhia, Nicholas Athol Keeling, Chang-Yu Huang, Jonathan Beaver, Claudio Armando Camasca Ramirez, Michael Le Gallais Kissin
  • Patent number: 9947989
    Abstract: Provided are an antenna for a communication terminal, and a method of manufacturing the same, the antenna including: a communication terminal case; and a radiator layer formed of a metal material in an inner curved surface part of the communication terminal case.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: April 17, 2018
    Assignee: LG Innotek Co., Ltd.
    Inventors: Soon Young Hyun, So Yeon Kim, Won Ha Moon, Seok Bae, Nam Yang Lee, Hyung Eui Lee
  • Patent number: 9934901
    Abstract: Near field communication device has a configuration in which at least a part of coil of coil element is covered with cover at a portion opposite to substrate and a part of cover is fixed to substrate directly or indirectly. Therefore, even when near field communication device is mounted to one of various electronic apparatuses in a vicinity of display unit outer peripheral frame made of metal, a large change in impedance or a large reduction in magnetic field strength can be prevented. As a result, a reduction in receiving sensitivity can be suppressed.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 3, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yu Hasegawa, Chikao Kume, Shigefumi Akagi
  • Patent number: 9899341
    Abstract: An antenna on integrated circuit (IC) package is disclosed. In an embodiment, an IC package comprises: a substrate; a radio frequency (RF) transceiver attached to the substrate; mold compound encapsulating the substrate; a shield layer formed on the mold compound; and one or more vias extending vertically through the shield layer and the mold compound, providing a conductive path to the RF transceiver. In another embodiment, a method comprises: attaching a radio frequency (RF) transceiver to a substrate; encapsulating the substrate with mold compound; forming a shield layer on the mold compound; and forming one or more vias through the shield layer and mold compound, providing a conductive path to the RF transceiver.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: February 20, 2018
    Assignee: Atmel Corporation
    Inventors: Hassan Hashemi, Mamdouh Atia, Igor Radutnuy
  • Patent number: 9831564
    Abstract: Antenna systems and packaging methods that reduce packaging and circuit board complexities are disclosed. The antenna system includes a circuit board. The circuit board defines a first surface and a second surface opposite to the first surface. The antenna system also includes a plurality of integrated antenna elements positioned on the first surface of the circuit board. Each integrated antenna element of the plurality of integrated antenna elements includes an antenna element, a printed circuit board and a radio frequency integrated circuit chip. Each integrated antenna element of the plurality of integrated antenna elements is packaged as a three-dimensional stack package.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: November 28, 2017
    Assignee: Rockwell Collins, Inc.
    Inventor: Chenggang Xie
  • Patent number: 9755685
    Abstract: There is provided a protective device (100) comprising a mobile phone protective portion (110) adapted for receiving at least a portion of a mobile phone device therein in use and an accessory protective portion (105) adapted for receiving at least a portion of an accessory item therein in use.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: September 5, 2017
    Inventor: David Paul Sumpter
  • Patent number: 9716317
    Abstract: An antenna device, which has wide-angle directivity and a configuration suitable to be used in a portable electronic apparatus, includes a flat board-like substantially rectangular soft magnetic body, and a loop-shaped coil disposed from a front surface to a rear surface of the soft magnetic body such that a region surrounded by the coil includes at least a part of a specific edge, i.e., one edge out of four edges of the soft magnetic body, and does not include a facing edge that faces the specific edge.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: July 25, 2017
    Assignee: NEC TOKIN CORPORATION
    Inventors: Kenichi Chatani, Naoharu Yamamoto, Toshiaki Oka, Takashi Otsuki
  • Patent number: 9705208
    Abstract: An antenna device includes coil antennas each including a coil conductor wound around a winding axis and a planar conductor that includes at least one edge and that is superposed with at least a portion of each of the coil antennas when viewed in plan. Winding axes of the plurality of coil antennas are parallel or substantially parallel to each other and so as to extend along a surface of the planar conductor, first coil opening ends of coil openings of the coil antennas in a direction in which the winding axes extend are contiguous with the edge and the coil antennas are connected such that magnetic fields generated by the coil antennas are in phase with each other. When W represents a width of the planar conductor, A represents a central spacing of the coil antennas and B represents a distance from a center of a coil antenna to a side of the planar conductor, A?( 3/10)W.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 11, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Hiromitsu Ito
  • Patent number: 9660349
    Abstract: A method of fabricating a multiferroic antenna element may include providing a electroelastic substrate to transform mechanical oscillations into an acoustic wave, providing a resonator assembly on a surface of the electroelastic substrate where the resonator assembly includes a plurality of magnetoelastic resonators that transform an electromagnetic wave into mechanical oscillations corresponding to a frequency of the electromagnetic wave, and providing an interdigitated electrode assembly at a portion of the electroelastic substrate to convert the acoustic wave into an electrical signal preserving information associated with the frequency of the electromagnetic wave.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: May 23, 2017
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Scott Macklin Keller, Paul Killian Nordeen, Kyle Wetzlar, Michael F. Moon, Gregory Paul Carman, Scott Richard Burnside
  • Patent number: 9623975
    Abstract: A low profile pass-through electrical connector is designed for aerospace applications. The connector allows voltage and current to pass-thru a conductive wing surface, while maintaining a low profile height for aerodynamic performance considerations. Examples of applications of the electrical connector include power for thin film heaters and communication antennae applications.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 18, 2017
    Assignee: Battelle Memorial Institute
    Inventors: Brett Burton, Andrew Cox, Darren Wolfe
  • Patent number: 9413055
    Abstract: A base carries a first chip and a second chip oriented differently with respect to the base and packaged in a package. Each chip integrates an antenna and a magnetic via. A magnetic coupling path connects the chips, forming a magnetic circuit that enables transfer of signals and power between the chips even if the magnetic path is interrupted, and is formed by a first stretch coupled between the first magnetic-coupling element of the first chip and the first magnetic-coupling element of the second chip, and a second stretch coupled between the second magnetic-coupling element of the first chip and the second magnetic-coupling element of the second chip. The first stretch has a parallel portion extending parallel to the faces of the base. The first and second stretches have respective transverse portions extending on the main surfaces of the second chip, transverse to the parallel portion.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 9, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Alberto Pagani
  • Patent number: 9411066
    Abstract: Sondes and sonde arrays for use with portable buried object locating systems are disclosed.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: August 9, 2016
    Assignee: SEESCAN, INC.
    Inventors: Mark S. Olsson, Michael J. Martin, Anthony L. Coduti
  • Patent number: 9356351
    Abstract: An antenna apparatus, which is assembled into an electronic apparatus and made communicatable upon receipt of a magnetic field transmitted from a transmitter, includes a laminated member made by mutually superimposing an antenna coil inductively coupled to the transmitter and formed on an antenna substrate with a magnetic sheet for drawing a magnetic field transmitted from the transmitter to the antenna coil, a film-shaped protective member that covers the laminated member at least up to an end portion of the magnetic sheet, and a communication processing unit that carries out communication to and from the transmitter and is driven by an electric current flowing through the antenna coil.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: May 31, 2016
    Assignee: Dexerials Corporation
    Inventors: Satoru Sugita, Yoshito Ikeda, Norio Saito
  • Patent number: 9343810
    Abstract: A very low profile wideband antenna adapted to operate from 30 MHz to 300 MHz or in another desired range. The maximum diameter and height of one embodiment of this antenna is only 60.96 cm and 5.08 cm, respectively. This design is comprised of a fat grounded metallic plate placed 5.08 cm over a ground plane. In one embodiment, ferrite loading strategically placed between the plate and ground plane improves the low frequency gain and the pattern at high frequencies. A minimal amount of ferrite may be used to keep weight low.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: May 17, 2016
    Assignee: Ohio State Innovation Foundation
    Inventors: Chi-Chih Chen, Haksu Moon, John L. Volakis
  • Patent number: 9225057
    Abstract: An antenna device includes an antenna element 10 and a printed circuit board 20 on which the antenna element 10 is mounted. The antenna element 10 includes a base 11 which is made of a dielectric material and a radiation conductor formed on at least one surface of the base 11. The printed circuit board 20 includes ground clearance region 23a having substantially a rectangular shape and having one side contacting an edge of the printed circuit board and other three sides surrounded by an edge line of a ground pattern, an antenna mounting region 27 provided within the ground clearance region 23a, and at least one frequency adjusting element 30 provided within the ground clearance region 27. The frequency adjusting element 30 is provided on the far side of the antenna mounting region 27 as viewed from an edge 20e of the printed circuit board 20.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: December 29, 2015
    Assignee: TDK CORPORATION
    Inventors: Naoaki Utagawa, Manabu Kitami, Masaki Matsushima, Takeshi Oohashi, Yasumasa Harihara
  • Patent number: 9099767
    Abstract: The invention relates to an antenna core, an antenna comprising an antenna core, and to methods for producing an antenna core and an antenna. The antenna core used in each case consists of a continuous soft-magnetic strip having a plurality of layers which are stacked one on top of the other and each of which is formed by a section of the strip. The layers are connected to one another by curved sections of the strip at end regions of the antenna core.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: August 4, 2015
    Inventors: Johannes Binkofski, Markus Brunner, Klemens Trabold, Ralf Koch
  • Patent number: 9041609
    Abstract: An antenna has a radiator formed entirely of thin film and adapted to receive and transmit radio-frequency signals, a connector also formed of thin film and adapted for connection to a transmitter, and a fuse formed of the same thin film as the radiator and connector and connected therebetween. The fuse is of a narrower width than the antenna and connector parts and so dimensioned as to melt if a radio-frequency signal greater than a predetermined magnitude is transmitted through it from the connector part to the radiator part.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 26, 2015
    Assignee: HIRSCHMANN CAR COMMUNICATION GMBH
    Inventors: Alan Miller, Oliver Neil
  • Publication number: 20150138030
    Abstract: An antenna device includes a first insulating base portion including a spiral antenna pattern, and a second insulating base portion including at least two conductor wires. An insulating layer configured to insulate the conductor wires from the antenna pattern is provided between a first end and a second end of the antenna pattern in a planar view. The insulating layer includes a cut or an opening allowing at least one of the first end and the second end of the antenna pattern to be exposed toward the conductor wires. Electrode portions of the conductor wires are electrically and mechanically connected to the first end and the second end, respectively, of the antenna pattern by a conductive material in the cut or the opening of the insulating layer. The second insulating base portion is more flexible than the first insulating base portion.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Kuniaki YOSUI, Naoki GOUCHI, Naoto IKEDA, Hiroyuki IRIKAWA
  • Patent number: 9035843
    Abstract: The ferrite-loaded, Fabry-Perot Cavity antenna uses a novel superstrate based beam scanning/shaping mechanism by optimally placing three magnetized ferrite cylinders within the cavity. Beam scan in a certain direction required oppositely located ferrite cylinder to be axially biased using externally controlled DC magnetizing field. The FPC utilizes a composite dielectric superstrate to inversely relate the mainlobe-to-sidelobe ratio with scan-angle, which demonstrates larger reduction in side lobe level with increases angle of beam scan. The designed 10 GHz ferrite-loaded FPC antenna has dimensions of 6.4 cm×2 cm×1.6 cm. It achieves a ?10 dB impedance bandwidth of 525 MHz, directivity of 11.04 dB and a broadside beam steering range of ±12° for 200 kA/m (0.25 T) changes in the externally applied axial magnetizing field.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: May 19, 2015
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Sheikh Sharif Iqbal Mitu, Farooq Sultan, Raj Mittra
  • Publication number: 20150130673
    Abstract: An antenna includes a radiating element that is held in a fixed orientation with respect to an underlying electromagnetic band gap (EBG) structure. In one embodiment, the radiating element and the EBG structure are both housed within a conductive cavity. The radiating element, the EBG structure, and the cavity are designed together to achieve an antenna having improved operational characteristics (e.g., enhanced bandwidth, beam steering, etc.). In some embodiments, the antenna may be implemented as a flush mounted or conformal antenna on an outer surface of a supporting platform.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Applicant: Raytheon Company
    Inventors: Jackson Ng, Charles G. Gilbert
  • Patent number: 9030366
    Abstract: An antenna device arranged around a printed circuit board is provided. The antenna device has an antenna element connected to a feeder circuit provided on the printed board. The antenna device has an isolating material provided between the antenna element and the substrate material. The isolating material is constituted by an insulating substrate material and a plurality of pieces of magnetic material provided on the substrate material. Adjacent ones of the pieces of the magnetic material are arranged separate from each other.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: May 12, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Ito, Akihiro Tsujimura, Takashi Amano, Naoyuki Nakagawa, Seiichi Suenaga, Tomoko Eguchi, Toshiro Hiraoka
  • Patent number: 9016588
    Abstract: A wireless IC tag, to which data can be written by using an IC tag introducing machine, the wireless IC tag can ensure the communication distance required for writing and reading data in the wireless IC tag formed in a dimension that does not intensively affect the strength of the material for building a construction and is provided with antennas with performance of excellent directionality, is provided. The wireless IC tag including an RFID tag module, a plate-shaped ferrite core to which the] RFID tag module is mounted, a primary antenna wound around a circumferential surface of the plate-shaped ferrite core, the primary antenna being connected with the RFID tag module, and a pair of secondary antennas, each of the pair of secondary antennas being wound around a circumferential surface of the plate-shaped ferrite core and being connected with the RFID tag module.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: April 28, 2015
    Assignee: Mitomo Corporation
    Inventor: Kikuo Kaga
  • Publication number: 20150104664
    Abstract: In a magnetic component, such as an inductor and an antenna, produced with a metal magnetic powder, a complex number component of magnetic permeability that is a loss in the GHz band was high. A magnetic component obtained by molding a soft magnetic metal powder can have a reduced loss factor in the GHz band. The soft magnetic metal powder is characterized by containing iron as a main ingredient, and having an average particle size of not larger than 300 nm, a coercive force (Hc) of 16 to 119 kA/m (200 to 1500 Oe), a saturation magnetization of not less than 90 Am2/kg, and a volume resistivity of not less than 1.0×101 ?·cm. The volume resistivity is determined by measuring, by a four probe method, a molded body formed by vertically pressurizing 1.0 g of the metal powder at 64 MPa (20 kN).
    Type: Application
    Filed: March 13, 2013
    Publication date: April 16, 2015
    Inventors: Kazumasa Ikari, Masahiro Gotoh, Takayuki Yoshida
  • Patent number: 9007270
    Abstract: A compact dual-channel antenna operating at least in two frequency bands, comprises at least the following elements: a coaxial cable connected to a reference ground, an antenna element designed to operate in the high-frequency band, having a length Linf, a counter-skirt with a length roughly corresponding to Linf and arranged around said antenna element, said duly surrounded antenna element being placed between the ground plane and an antenna element designed to operate in the low-frequency band, the assembly having a length Lsup designed to operate in the low-frequency band and consisting of the antenna element and the counter-skirt, fed via the core of said coaxial surrounding a magnetic element to form a winding, said antenna element being fed via a braid of the sheath of said coaxial.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: April 14, 2015
    Assignee: Thales
    Inventor: Frédéric Ngo Bui Hung
  • Patent number: 8988301
    Abstract: A core-shell magnetic material having an excellent characteristic in a high-frequency band, in particular a GHz-band and a high environment resistance is provided. The core-shell magnetic material includes: a magnetic member in which plural core-shell magnetic particles are bound by a binder made of a first resin; and a coating layer that is made of a second resin different from the first resin, a surface of the magnetic member being covered with the coating layer. The core-shell magnetic material is characterized in that the core-shell magnetic particle includes a magnetic metallic particle and a covering layer that covers at least part of a surface of the magnetic metallic particle, the magnetic metallic particle contains at least one magnetic metal selected from a group consisting of Fe, Co, and Ni, and the covering layer is made of an oxide, a nitride, or a carbide that contains at least one magnetic metal.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 24, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Maki Yonetsu, Tomohiro Suetsuna, Koichi Harada, Seiichi Suenaga, Shinji Murai, Yasuyuki Hotta, Toshihide Takahashi, Tomoko Eguchi, Noritsugu Shiokawa
  • Patent number: 8981894
    Abstract: The invention relates to an improved antenna device, characterized by the following additional features:—that each functional unit (21) can communicate bidirectionally with the remote control unit (RC) by means of the communication bus (23),—the configuration, the controller, and/or the querying of one or more functional units (21) of the at least one emitter device takes place over the entire communications bus (23),—the communication to the remote control unit (RC) is handled by each addressed functional unit (21), and—an internal communications bus (25) is provided for exchanging information and/or action states between the functional units (21) connected in the at least one emitter device.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: March 17, 2015
    Assignee: Kathrein-Werke KG
    Inventors: Burkhard Mann, Johann Schmid
  • Publication number: 20150070232
    Abstract: A method for manufacturing an antenna includes the steps of: providing a ferrite sheet; forming a via hole through the ferrite sheet, wherein the via hole is connected between a first surface and a second surface of the ferrite sheet; forming a nonconductive ink layer on the first surface and the second surface and in the via hole of the ferrite sheet; applying a displacement process to the nonconductive ink layer so as to form a first metal layer on the nonconductive ink layer; and applying a thickening process to the first metal layer so as to form a second metal layer on the first metal layer, wherein the first metal layer and the second metal layer both extend from the first surface through the via hole to the second surface of the ferrite sheet.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 12, 2015
    Inventors: Tzu-Min WU, Yuan-Chin HSU
  • Patent number: 8970446
    Abstract: An electronic device may have magnetically mounted antenna structures. The electronic device may have a dielectric member against which one or more antennas are mounted. The dielectric member may be a cover glass layer that covers a display in the electronic device, a dielectric antenna window, or other dielectric structure. Each antenna may have an antenna support structure. Conductive antenna structures for the antenna may be mounted to the antenna support structure. The antennas may be cavity-backed planar inverted-F antennas. Portions of each antenna support structure may be configured to receive magnets. The magnets may be attracted towards ferromagnetic structures mounted on the dielectric member. As the magnets are attracted towards the ferromagnetic structure, the antennas may be held in place against the dielectric member.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 3, 2015
    Assignee: Apple Inc.
    Inventors: Mattia Pascolini, Jerzy Guterman, Jonathan Haylock, Jiang Zhu, Peter Jeziorek
  • Publication number: 20150042528
    Abstract: An electronic device is provided. The electronic device includes a printed circuit board (PCB), a shield can disposed on the PCB, an antenna radiator of which at least a part enters an internal space of the shield can and is installed at an inner surface of the shield can, and an electrical connecting means which is installed at a corresponding position of the PCB so as to be electrically connected with the at least a part of the antenna radiator installed at the inner surface of the shield can.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 12, 2015
    Inventor: Young-Hwan JUNG
  • Publication number: 20150035715
    Abstract: An antenna device is provided. The antenna device may include a conductive radiator pattern formed on one surface of a dielectric substrate, an artificial magnetic conductor layer including at least one unit cell formed on the other surface of the dielectric substrate, and a shorting pin connected to the unit cell. The artificial magnetic conductor layer may be configured to form an induction current of the same phase with regard to a signal current flowing through the conductive radiator pattern.
    Type: Application
    Filed: July 25, 2014
    Publication date: February 5, 2015
    Inventors: Hyun-Jin KIM, Goudelev ALEXANDER, Anton S. LUKYANOV, Won-Bin HONG, Byung-Chul KIM, Young-Ju LEE
  • Patent number: 8928547
    Abstract: In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: January 6, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kuniaki Yosui, Hiroyuki Kubo, Hiromitsu Ito
  • Patent number: 8922440
    Abstract: A space efficient magnetic antenna is disclosed for use in tracking, positioning and other applications. In a preferred embodiment, a space efficient magnetic antenna system comprises a first magnetic antenna with a first null axis aligned within a predetermined plane and a second magnetic antenna having a second null axis aligned substantially orthogonal to a first null axis. A second magnetic antenna system lies in a minimal coupling orientation with respect to a first magnetic antenna system. Additionally, a first magnetic antenna may further comprise a plurality of interconnected magnetic antenna elements. A space efficient magnetic antenna system may include an RF module. In further embodiments, the antenna system may enclose a substantial majority of the device including the RF module; the RF module may be enclosed substantially or wholly within one or more antennas of the antenna system.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: December 30, 2014
    Assignee: Q-Track Corporation
    Inventors: Hans Gregory Schantz, Robert Edward DePierre, James David Fluhler, Kazimierz Siwiak, Glenn Wolenec, Jerome Sylvester Gabig, James Matthew Barron
  • Patent number: 8917218
    Abstract: A circuit board and a circuit module more accurately provide impedance matching between an antenna coil and an electronic component electrically connected to the antenna coil, and include a board body including board portions and a plurality of laminated insulating material layers made of a flexible material. An antenna coil includes coil conductors provided in the board portion. Wiring conductors are provided in the board portion and electrically connected to the antenna coil. The board portion has a structure that is less likely to deform than the board portion. An integrated circuit electrically connected to the wiring conductors is mounted on the board portion.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 23, 2014
    Assignee: Murata Manufacturing Co., Ltd
    Inventors: Noboru Kato, Jun Sasaki
  • Publication number: 20140368394
    Abstract: A base carries a first chip and a second chip oriented differently with respect to the base and packaged in a package. Each chip integrates an antenna and a magnetic via. A magnetic coupling path connects the chips, forming a magnetic circuit that enables transfer of signals and power between the chips even if the magnetic path is interrupted, and is formed by a first stretch coupled between the first magnetic-coupling element of the first chip and the first magnetic-coupling element of the second chip, and a second stretch coupled between the second magnetic-coupling element of the first chip and the second magnetic-coupling element of the second chip. The first stretch has a parallel portion extending parallel to the faces of the base. The first and second stretches have respective transverse portions extending on the main surfaces of the second chip, transverse to the parallel portion.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 18, 2014
    Inventor: Alberto Pagani
  • Patent number: 8907859
    Abstract: Described herein are techniques related to near field coupling and wireless power transfers. A mobile device may include an edge-emitting antenna that offers ultra slim, all-metallic chassis packaging option with no cutout, uses lesser area, has robust mechanical strength, and provides EMI/ESD protection. In one example, an inductor coil is wrapped around a magnetic core and a pair of conductive layers is configured to interpose the magnetic core and the inductor coil between them to expose an edge of the magnetic core. The inductor coil being operable in a transmit mode to generate a magnetic field in response to a current passing through it. The edge is configured to enhance outward radiation of the magnetic field. Based on simulation results, the edge-emitting antenna occupies less space and provides an acceptable level of performance for coupling coefficients compared to conventional antenna.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: December 9, 2014
    Assignee: Intel Corporation
    Inventors: Hao-Han Hsu, Dong-Ho Han, Songnan Yang, Anand S Konanur, Chung-Hao Joseph Chen