Delay Lines Including Long Line Elements Patents (Class 333/156)
  • Patent number: 11108154
    Abstract: Disclosed is a phase shifter arrangement for an antenna, such as a cellular antenna, that has a simplified drive mechanism. The phase shifter arrangement has two phase shifters, each with two wiper arms that are coupled at one end to a single drive shaft. Each of the wiper arms have a pivot access that may be located at or near its center such that as the drive shaft translates, it mechanically engages both wiper arms, causing them to rotate around their respective pivot axes. Certain antenna arrangements have several array faces. For example, the antenna may have three array faces, each spaced at 120 degrees of azimuth. The drive shafts for each of these array faces may operate independently to function as a multisector antenna, or they may be driven in unison to function as an omnidirectional antenna.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: August 31, 2021
    Inventor: Andrew Litteer
  • Patent number: 11101552
    Abstract: An antenna device includes a dielectric substrate, a ground plane, an antenna unit, a reflection unit, and an interruption unit. The interruption unit includes a plurality of second conductor patches disposed around the antenna unit, and a plurality of through-holes permitting electrical conduction between each of the second conductor patches and the ground plane, and interrupts a surface current flowing on a surface of the dielectric substrate.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 24, 2021
    Inventors: Kazushi Kawaguchi, Kazumasa Sakurai, Toshiya Sakai, Asahi Kondo
  • Patent number: 11081789
    Abstract: Base station antennas are provided herein. A base station antenna includes first and second wiper phase shifters. In some embodiments, the base station antenna includes first and second wiper supports that are on the first and second wiper phase shifters, respectively, and the first wiper support includes a portion that is beside and interlocked with a portion of the second wiper support. In some embodiments, the base station antenna includes a first linkage that is on the second wiper phase shifter, and a second linkage that intersects, and is coupled to, the first linkage and is configured to adjust the first and second wiper phase shifters via the first linkage. In some embodiments, the first and second wiper phase shifters are a mirror-image pair of wiper phase shifters. Related methods of operating a base station antenna are also provided.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: August 3, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Guomin Ding, Martin Zimmerman, Junfeng Yu, Haifei Qin
  • Patent number: 11063353
    Abstract: A system utilizes e-fuses in phase shifter elements of a phased array antenna to achieve a desired direction of a beam formed by the phased array antenna. A phase shifter element includes: a transmission line structure comprising a signal line, a ground return line, a capacitance line, and an inductance return line; and at least one e-fuse connected to the transmission line structure, wherein the phase shifter element has a first phase shift when the at least one e-fuse is unbroken and a second phase shift, different from the first phase shift, when the at least one e-fuse is broken.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: July 13, 2021
    Assignee: GLAIVERF, INC.
    Inventor: Wayne H. Woods, Jr.
  • Patent number: 11018424
    Abstract: A multi radiator antenna comprising an electrically conductive reflector, at least two radiating elements arranged on said reflector, a feeding network connected to the radiating elements, and a protective cover. The feeding network comprises a plurality of conductors for distributing signals to the radiators. The feeding network has means for adjusting relative phases of said signals in order to adjust a direction of the antenna main lobe of said multi-radiator base station antenna. The means for adjusting is provided with, or is connected to, an indicating portion configured to provide a visual indication of said direction. The protective cover is provided with an at least partially transparent wall portion arranged such that said indicating portion is visible there through.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: May 25, 2021
    Assignee: Cellmax Technologies AB
    Inventor: Niclas Yman
  • Patent number: 10921654
    Abstract: A high-frequency device and/or a high-frequency switch including the same may include: a signal electrode; a first ground electrode arranged in parallel with the signal electrode; a first liquid crystal layer disposed between the signal electrode and the first ground electrode; and a first dielectric layer disposed between the first liquid crystal layer and the first ground electrode, and/or between the signal electrode and the first liquid crystal layer. The first dielectric layer may have a dielectric constant that is larger than the dielectric constant of the first liquid crystal layer. The high-frequency device and/or the high-frequency device including the same may be variously implemented.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: February 16, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Artem Rudolfovitch Vilenskiy, Elena Aleksandrovna Shepeleva, Gennadiy Aleksandrovich Evtyushkin, Mikhail Nikolaevich Makurin
  • Patent number: 10868366
    Abstract: Embodiments are generally directed to a package architecture for antenna arrays. An embodiment of an apparatus includes an electronic package, the electronic package including one or more routing layers; a transmitter to drive a signal for wireless transmission; and an assembled phased array antenna to transmit the signal, the assembled phased array antenna including a plurality of separate antenna elements in an array, each antenna element of the array being individually attached to a first side of the electronic package. The antenna elements include a first antenna element and a second antenna element, wherein the first antenna element is separated from the second antenna element by a gap.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: December 15, 2020
    Assignee: Intel Corporation
    Inventors: Adel A. Elsherbini, Shawna M. Liff, William J. Lambert
  • Patent number: 10784550
    Abstract: A phase shifter having both digital and analog shifting components is disclosed. The digital-analog phase shifter includes an input/output port configured, in part, for receiving an input radio frequency (RF) signal from an external source and outputting a phase shifted RF signal. A digital shifter performs coarse phase shifts of the input RF signal, while an analog shifter variably shift the phase of the input RF signal relative to the coarse phase shift. This produces a phase shifted RF signal having a total phase range that is output is continuously variable from 0° to 360°.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: September 22, 2020
    Inventors: Bingqian Lu, Hamad Alsawaha, Peter Hou, Thomas Jackson, Yilin Mao
  • Patent number: 10763560
    Abstract: There is provided a wiper support device for a phase shifter including a substrate. The wiper support device may comprise a cover, which is provided opposite to the substrate. The wiper support device may further comprise a wiper support, which is located between the cover and the substrate. The wiper support has a first surface facing the cover and a second surface facing the substrate. The second surface may be fixed with a wiper. The wiper support device may further comprise a resilient element, which extends from the first surface of the wiper support toward the cover and abuts against the cover. The wiper support device may further comprise a fastening mechanism, which connects the cover to the substrate. The resilient element may be compressed between the cover and the wiper support.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 1, 2020
    Assignee: CommScope Technologies LLC
    Inventor: Guomin Ding
  • Patent number: 10687134
    Abstract: A connector is disconnectable from the device, yet providing stable connections and allowing one side of the connection to rotate about an axis through the connection and move longitudinally along the axis. One embodiment is a set of headphones allowing for the owner to select various configurations of the headband and ear cups.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 16, 2020
    Assignee: Davi Audio, Inc.
    Inventors: Leonard Davi, Jason May, Todd Metlen, William Moseley, Demian Martin
  • Patent number: 10629973
    Abstract: A phase shift device includes a planar transmission line that is formed by a signal electrode and a ground electrode which are separated by a dielectric substance, whereby the signal electrode of the planar transmission line is divided into several pieces and includes overlapping areas of adjacent pieces that are filled with a tunable liquid crystal material, thereby forming a dielectric tunable component (varactor) with a metal-insulator-metal type capacitor. The several pieces of the signal electrode are arranged at two or more different distance levels with respect to the ground electrode. The tunable liquid crystal material is arranged as a continuous layer between several pieces of the signal electrode that are arranged at two different distance levels.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: April 21, 2020
    Assignee: ALCAN Systems GmbH
    Inventors: Rolf Jakoby, Onur Hamza Karabey, Wenjuan Hu
  • Patent number: 10560856
    Abstract: A phase shifter, an antenna, and a base station are provided. The phase shifter in the present invention includes a feed unit, a tapping element, a conductor section, and a ground element, and the feed unit is electrically connected to the tapping element. The tapping element is electrically connected to the ground element when being shifted by a preset angle by using a port of the conductor section as a start position, so that a transmit signal is reflected to an input port of the feed unit, and whether a cable is correctly connected is determined according to the signal of the input port, thereby signal transmission accuracy of an antenna is ensured.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 11, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weihong Xiao, Zhiqiang Liao
  • Patent number: 10535923
    Abstract: The present disclosure provides a system and methods for mitigating, or reducing, the intermodulation of an adaptive antenna array's radiating elements. A tunable element or tunable material, such as a phase change material or a state change material, may be used to increase linearity of the RF transmission properties. These phase or state change materials may modify a radiating element's electromagnetic response. In some embodiments, variable couplers may further be added to a system to reduce intermodulation. An adaptive antenna array using the techniques described herein may have all or some of the elements co-located.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 14, 2020
    Assignee: Elwha LLC
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov
  • Patent number: 10476660
    Abstract: Apparatuses and methods for quadrature signal generation are provided. An example includes a quadrature signal generator. The quadrature signal generator is configured to generate, based on a received differential signal, a plurality of quadrature clock signals at a same frequency as that of the received differential signal. The quadrature signal generator is also configured to provide the plurality of quadrature clock signals to a memory system.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: November 12, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Liuchun Cai, Steven G. Wurzer, Gregory A. King
  • Patent number: 10477312
    Abstract: An earphone is provided that can decrease a time delay between a microphone and a loudspeaker. The earphone includes a microphone incorporated with the membrane of loudspeaker. The loudspeaker and the microphone are connected by connection lines to an electronic circuit.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: November 12, 2019
    Inventors: Richard Pribyl, Michael Perkmann, Hannes Lehdorfer
  • Patent number: 10411347
    Abstract: A phase shifter may include a cavity body, and a fixed circuit board and a phase shift unit that are located inside the cavity body, and the phase shift unit being capable of moving relative to the fixed circuit board. A power division circuit is disposed on the fixed circuit board. The power division circuit includes an input end, a main feeder, a node, at least two output ends, a filtering stub, and at least two output circuits. The main feeder is electrically connected between the input end and the node. The filtering stub is electrically connected to the main feeder, and the filtering stub is in an open-circuit state. The at least two output circuits are respectively electrically connected between the node and the at least two output ends. The phase shift unit is disposed in correspondence with the at least two output circuits.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 10, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiqiang Liao, Qiyi Lu, Xinneng Luo, Junfeng Lu
  • Patent number: 10403948
    Abstract: A phase shifter includes a signal conductor constituting a transmission line for a signal transmitted through an antenna element, a dielectric plate including a dielectric material disposed to face to the signal conductor, and a mobile mechanism for moving the dielectric plate. A facing area between the signal conductor and the dielectric plate is changed by a movement of the dielectric plate, to change a phase of the signal transmitted through the signal conductor. The dielectric plate includes a transformer unit for impedance matching between an overlapped portion in which the signal conductor faces to the dielectric plate and a non-overlapped portion in which the signal conductor does not face to the dielectric plate.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 3, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Shinsuke Murano, Ryoji Matsubara, Kei Kawano
  • Patent number: 10396780
    Abstract: Designing phase shifters having small insertion loss and footprint for mm-wave applications is challenging. The disclosed methods and devices provide solutions to overcome such challenge. Devices based on limited ground coplanar waveguide structure are also disclosed wherein the 180° phase shift is created using through and changeover mm-wave switches.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 27, 2019
    Assignee: pSemi Corporation
    Inventor: John Birkbeck
  • Patent number: 10389006
    Abstract: An electronic apparatus has a substrate having a signal terminal and a waveguide formed above the substrate. The waveguide includes a lower conductor having an opening at a position corresponding to the signal terminal of the substrate and an upper conductor arranged above the lower conductor. A conductor pin is formed on the signal terminal, the conductor pin penetrating the opening without contacting the lower conductor of the waveguide. The conductor pin is connected to the upper conductor above the lower conductor.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 20, 2019
    Inventor: Daijiro Ishibashi
  • Patent number: 10371760
    Abstract: A system for magnetic detection includes a magneto-optical defect center material comprising a plurality of magneto-optical defect centers, an optical light source, an optical detector, and a radio frequency (RF) excitation source. The optical light source is configured to provide optical excitation to the magneto-optical defect center material. The optical detector is configured to receive an optical signal emitted by the magneto-optical defect center material. The RF excitation source is configured to provide RF excitation to the magneto-optical defect center material. The RF excitation source includes an RF feed connector, and a metallic material coated on the magneto-optical defect center material and electrically connected to the RF feed connecter.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 6, 2019
    Inventors: Andrew Raymond Mandeville, Gregory Scott Bruce, Joseph W. Hahn
  • Patent number: 10374293
    Abstract: Multi-band antennas include one or more duplexers configured to provide isolation of non-linearities generated along a downlink path of RF signals transmitted from the multi-band antenna from an uplink path of RF signals received by the multi-band antenna.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 6, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Sammit Patel, Morgan C. Kurk, XiaoHua Hou, Giuseppe Resnati
  • Patent number: 10297891
    Abstract: The present disclosure shows a high-frequency phase shifter assembly having at least two high-frequency phase shifters stacked above one another which are arranged in at least one housing, wherein at least one housing plate is provided between the high-frequency phase shifters in the stack; and wherein the high-frequency phase shifters each have a rotatably supported pick-up element which is electrically coupled to a feed line via a coupling point arranged in the region of its rotary axle; and wherein the pick-up elements of the high-frequency phase shifters are mechanically coupled for the synchronous adjustment of the high-frequency phase shifters. Provision is made in this respect that the mechanical coupling of the pick-up elements of the high-frequency phase shifters takes place via a coupling arrangement spaced apart from the rotary axles of the pick-up elements.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 21, 2019
    Assignee: KATHREIN SE
    Inventors: Dan Fleancu, Joerg Langenberg, Michael Thunn
  • Patent number: 10249923
    Abstract: The present invention discloses an ultra wide band fixed phase shifter based on a capacitive load, which includes N physically separated phase shift units, and each phase shift unit includes an orthocoupler, first and second transmission lines, and first and second capacitive loads, wherein the orthocoupler includes an input end, a coupling end, a direct-connection end and an isolation end, one end of the first transmission line serves as a signal input end of the phase shift unit and the other end is connected with the input end of the orthocoupler, one end of the second transmission line serves as a signal output end of the phase shift unit and the other end is connected with the isolation end of the orthocoupler; one end of the first capacitive load is connected with the coupling end of the orthocoupler and the other end is grounded; one end of the second capacitive load is connected with the direct-connection end of the orthocoupler and the other end is grounded.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: April 2, 2019
    Inventors: Chuan Gai, Dong Xia
  • Patent number: 10135133
    Abstract: A device is presented for improving radio frequency (RF) and microwave array antenna performance. The device sits in the near field, the reactive region, of the antenna array with a pattern of electrically isolated rectangular, cross-shaped, ell, and/or similarly-shaped patches of flat metal or other conductor in a flat plane. The patches are segmented into smaller shapes no greater than 0.3 of a shortest wavelength of the nominal operating range of the antenna and/or the height of the plane is greater than 0.25 and/or less than 0.4 of the center frequency's wavelength.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 20, 2018
    Assignee: The Chinese University of Hong Kong
    Inventors: Ke-Li Wu, Changning Wei, Xide Mei
  • Patent number: 10090576
    Abstract: A switchless combiner includes a circuit having a delay line consisting of a constant-impedance transmission line and a device adapted to vary the electric length of said transmission line, the device including a metallic body with walls defining a cavity, the walls being interrupted to define a slot, the cavity and the slot extending along at least a portion of the length of the device, the cavity including a first portion having a first cross-section and a second portion having a second cross-section which is greater than the first cross-section, the second portion having a dielectric element with a cutout corresponding to the slot, the first and second portions extending in the longitudinal direction of the device and the transmission line being positioned, inside the first and second portion, in the cutout, the dielectric element occupying the cavity of the second portion, and having an element to translate the dielectric element on the circuit in the longitudinal direction of the device.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: October 2, 2018
    Assignee: Onetastic S.R.L.
    Inventor: Carlo Bombelli
  • Patent number: 10062939
    Abstract: A phase shifter of cavity type includes an integrally formed cavity, a feeding network disposed inside the cavity, a dielectric element disposed between the feeding network and the cavity, and at least one transmission-line transformation device. The at least one transmission-line transformation device is connected with the cavity by welding for connecting an outer conductor of a transmission cable, and for passing an inner conductor of the transmission cable into the cavity and being connected with the feeding network. Phase shifting is achieved by straight movement of the dielectric element along the longitudinal direction of the cavity. For the phase shifter of cavity type, the cavity and transmission-line transformation device are individually designed, and as a result, difficulty in design and manufacture is decreased. In addition, fasteners such as screws are not used for securing the phase shifter, thus avoiding reliability and inter-modulation problems resulted from failure of screws.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: August 28, 2018
    Inventors: Peitao Liu, Guosheng Su, Litao Chen, Binlong Bu, Fengzhang Xue, Shanqiu Sun
  • Patent number: 10062940
    Abstract: A dielectric phase shifter comprises a cavity having an elongated receiving space, a phase shifting circuit disposed inside the receiving space, and a dielectric element slidably mounted in the receiving space and parallel with the phase shifting circuit. A rail is disposed on an inner wall of the cavity for preventing contact between the movable dielectric element and the phase shifting circuit. By providing a number of rails between the phase shifting circuit and the dielectric element, direct contact between the dielectric element and a feeding network is prevented. As a result, no additional force will be imposed on the feeding network and reliability is enhanced. Moreover, wear of the feeding network and/or dielectric element during operation of the phase shifter is eliminated.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: August 28, 2018
    Inventors: Peitao Liu, Guosheng Su, Binlong Bu, Fengzhang Xue, Shanqiu Sun
  • Patent number: 10056661
    Abstract: Positioned above the actual pointer head of the pointer-shaped feed element, through which the centre axis or swivel axis passes, is an additional capacitor coupling device or coupling disc that is arranged at a distance from said pointer head and is electrically isolated therefrom. This additional coupling device or disc is separated from the electrically conductive pointer head by a disc-shaped insulator which is inserted therebetween.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: August 21, 2018
    Assignee: Kathrein-Werke KG
    Inventors: Stephan Dandlberger, Georg Tischler
  • Patent number: 10033349
    Abstract: A multi-state phase shifter circuit having both low insertion loss (IL) and good return loss. Two or more phase shift elements are combined into a single cell architecture to reduce the number of series-connected FET switches and reduce the total IL. One embodiment has two ports connected by parallel signal paths each comprising a pair of switches and a phase shift element comprising, for example, an inductor, a capacitor, a transmission line, or a conductor. Another embodiment has two ports connected by parallel signal paths each comprising a switch and at least one associated phase shift element. The switches in each parallel signal path allow the associated phase shift element to be placed in-circuit under the control of an applied signal. The sets of switches may be independently controlled, so that multiple parallel signal paths may be switched into circuit between the phase shifter circuit ports at the same time.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 24, 2018
    Assignee: pSemi Corporation
    Inventors: Mohamed Gamal El Din, Uwe Stehr
  • Patent number: 10008918
    Abstract: A system is disclosed which provides the minimization of peak-to-peak output voltage ripple in multi-phase DC-DC switching converters, with two or more different value inductors (asymmetric inductors), by the optimization of phase-shifting determined by the inductance on each phase. An object of the disclosure is to ensure both the AC accuracy of the output voltage and the efficiency of the DC-DC switching converter is increased. The output voltage ripple improvement is shown to be dependent on the duty-cycle. Another object of the disclosure is to minimize the total inductor current ripple and improving the efficiency of the DC-DC switching converter by reducing the capacitor loss. Still another object of the disclosure is to minimize the output voltage ripple in the multi-phase DC-DC switching converter by ensuring the sum of the inductor current vectors is equal to zero.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 26, 2018
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Santhos Ario Wibowo, Hidenori Kobayashi, Seiichi Ozawa, Hidechika Yokoyama
  • Patent number: 9992858
    Abstract: A printed circuit board includes a first printed circuit substrate and a second printed circuit substrate. The first printed circuit substrate includes a substrate layer and a first conductive circuit layer. The first conductive circuit layer is formed on the substrate layer. The substrate layer includes at least two first grooves. The first conductive circuit layer includes at least one signal wire. The first grooves are defined in both sides of the signal wire. The second printed circuit substrate is formed on the first printed circuit substrate. The second circuit substrate includes a third copper layer. A second groove is defined in the third copper layer. The first grooves are opposite to the second groove. The first grooves and the second groove form a space.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 5, 2018
    Assignees: Avary Holding (Shenzhen) Co., Limited, HongQiSheng Precision Electronics (QinHuangDao) Co., Ltd., GARUDA TECHNOLOGY CO., LTD
    Inventors: Ming-Jaan Ho, Xian-Qin Hu, Yi-Qiang Zhuang, Fu-Wei Zhong
  • Patent number: 9979232
    Abstract: The invention relates to a wireless power device including a coil to wirelessly transmit or receive power. The coil has a meander pattern. And the quality factor can be increased by reducing the resistance component through the structure of the coil having the meander pattern. Also, the power transmission efficiency can be significantly improved by concentrating the intensity of the magnetic field on a predetermined part through the structure of the coil having the meander pattern.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 22, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Sung Hyun Leem
  • Patent number: 9960473
    Abstract: A system comprises a differential phase shifter based on a differential coupled line coupler that can include a ground metal layer, a bottom metal layer and a top metal layer. The differential line coupler can include differential input lines comprising two metal stack layers (top and bottom), which are arranged diagonally, and the differential output lines are arranged in a complementary diagonal configuration. This layout configuration overcomes the asymmetry caused by the difference in metal layer thickness and width difference, as well as a periphery effect such as the distance to a ground plane or substrate. The proposed diagonal layout configuration balances the characteristic impedance and phase accumulation on each coupled wire of the differential coupled line coupler, which improves the performance of the phase shifter, e.g. lower insertion loss and wider phase tuning range.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: May 1, 2018
    Assignee: International Business Machines Corporation
    Inventors: Oded Katz, Nadav Mazor
  • Patent number: 9667235
    Abstract: A phase shifter including two or more amplifiers having transistors with approximately linear transconductance to current relationships. The phase shifter also includes one or more loads connected to the transistors of the amplifiers and configured to adjust the gain of the amplifiers by varying the transconductance of the transistors.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 30, 2017
    Assignee: Rockwell Collins, Inc.
    Inventors: Russell D. Wyse, Michael L. Hageman
  • Patent number: 9614267
    Abstract: Embodiments of a broadband capacitor in a coaxial line are described. A capacitor may be realized in the center conductor of the coaxial line, and this aspect has two different embodiments. One embodiment forms the capacitor between the flat faces of an interrupted inner conductor structure. A second embodiment forms the capacitor between overlapping fingers of the female inner conductor and the male inner conductor, where the fingers can be realized in different ways. In another embodiment, a capacitor is realized in the outer conductor of the coaxial line, between fingers of a female portion of the outer conductor and a male portion of the outer conductor, where the fingers can be realized in different ways.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: April 4, 2017
    Assignee: Maury Microwave, Inc.
    Inventors: M. Tekamül Büber, Sathya Padmanabhan, Bruce J. Pluth
  • Patent number: 9559418
    Abstract: A phase shifter includes dielectric members including facing portions facing a signal line formed on a surface of a substrate and being made of a dielectric material, a supporting member configured to support the dielectric members and receive a moving force for moving the dielectric members in a direction which is parallel to the substrate and crosses the signal line, and a moving mechanism configured to apply the moving force to the supporting member. At least either the dielectric members or the supporting member is provided with a protrusion configured to keep a distance between the facing portions of the dielectric members and the signal line.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 31, 2017
    Assignee: HITACHI METALS, LTD.
    Inventors: Naoki Iso, Yoshiaki Ishigami, Masahisa Kaneta, Nobuaki Kitano, Tomoyuki Ogawa, Tsukasa Fujishima
  • Patent number: 9431703
    Abstract: A differential phase shifter assembly with n striplines positioned concentrically with one another, on the opposite stripline ends of which connecting points for connecting lines leading to radiators are provided, where n is a natural integer greater than or equal to 2. A feeding and/or tapping device is pivotable about a central and/or pivot axis, and is therefore pivotable over the plurality of striplines while establishing a primary capacitive coupling. A central feed serves to feed the feeding and/or tapping device. At least one to n?1 secondary capacitive couplings are additionally provided. The one or more secondary capacitive couplings are provided on the side of the feeding and/or tapping assembly facing the primary capacitive coupling. For the at least one additional secondary capacitive coupling, at least one additional branched feeding and/or tapping device is provided, which together with the feeding and/or tapping device is pivotable about the central and/or pivot axis.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 30, 2016
    Inventors: Stephan Dandlberger, Georg Tischler
  • Patent number: 9231729
    Abstract: A data communication system comprises a wave-front multiplexer configured to wave-front multiplex first electronic signals into second electronic signals. An electronic-to-optical converter is configured to convert a third electronic signal carrying information associated with the second electronic signals into a first optical signal. An optical transferring module is configured to split the first optical signal into second optical signals, wherein each of the second optical signals carries the same data as the first optical signal carries. Optical-to-electronic converters are configured to convert the second optical signals into fourth electronic signals. Wave-front demultiplexers each are configured to wave-front demultiplex the fourth electronic signals into fifth electronic signals equivalent to the first electronic signals respectively.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: January 5, 2016
    Inventor: Donald C. D. Chang
  • Patent number: 9191609
    Abstract: A segment creation device includes: a live data acquiring unit that acquires character string data transmitted from a plurality of terminals, and acquires live data that includes the character string data and a data registration date and time; a condition input unit that causes a user to input a search condition including time zone information representing a predetermined time zone and character string information; a live data number counting unit that counts the number of pieces of live data having character string data; and a segment creating unit that creates segment data which is specified based on a starting time and an ending time of a time period.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 17, 2015
    Assignee: JVC KENWOOD Corporation
    Inventor: Masaaki Makino
  • Patent number: 9129251
    Abstract: Examples of a rail-mounted robotic inventory system are provided. The system includes a rail-mounted robot having an electronic tag reader configured to receive electronic tag data from electronic tags associated with inventory items. The system can include a navigation module configured to direct the rail-mounted robot along a rail through an inventory area, detect obstacles, and determine a position of the rail-mounted robot within the inventory area. The system can include an inventory identification module configured to receive the electronic tag data from the rail-mounted robot and identify and/or locate the inventory items in the inventory area based at least partly on the electronic tag data.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: September 8, 2015
    Inventor: William Edward Davidson
  • Patent number: 8995912
    Abstract: Communication between chips is provided using a transmission line. Any one of the chips may tap into the transmission line, and communicate with another chip tapped into the transmission line by transmitting a radio frequency (RF) signal to the other chip via the transmission line or receiving an RF signal from the other chip via the transmission line. The transmission line may include a microstrip transmission line, a waveguide, a stripline transmission line, or another type of transmission line. The chips may use the transmission line to communicate data, control and/or clock signals with one another.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 31, 2015
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8957743
    Abstract: A communication unit comprises a controller and a radio frequency signal path having a plurality of delay elements operably coupled to a series of respective amplifier stages, wherein the controller is arranged to individually enable the respective amplifier stages. In response thereto a number of the plurality of delay elements are selectively inserted into or by-passed from the radio frequency signal path thereby adjusting a phase shift applied to signals provided through the radio frequency signal path.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: February 17, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Ralf Reuter
  • Publication number: 20150035619
    Abstract: Provided is a phase shifter for shifting a phase of a signal the phase shifter including an input unit to split an input signal into a plurality of signals having different phases, a connection unit to change at least one of magnitudes and phases of the plurality of signals, apply the changed plurality of signals to a plurality of loads, and receive a plurality of return signals generated when the applied signals are returned by the plurality of loads, and an output unit to generate an output signal having a predetermined phase difference from the input signal based on the return signals.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Seong Mo MOON, Dong Hwan SHIN, In Bok YOM, Han Lim LEE, Moon Que LEE
  • Patent number: 8928543
    Abstract: A gyrotropic metamaterial structure that include a plurality of chiral metamaterials forming one or more pairs of dipole structures. A plurality of lumped circuits are positioned between the one or more pairs of dipole structures. The lumped circuits have a plurality of subwavelengths antennas that are combined to change the polarization states of an incident polarized wave by producing Faraday-like rotation allowing for nomeciprocal propagation of the incident polarized wave.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Zheng Wang, Marin Soljacic, Zhiyu Wang, John D. Joannopoulos, Lixin Ran
  • Publication number: 20150002362
    Abstract: A surface antenna with a single radiation element, which comprises (a) a power source with first and second poles; (b) a phase shifting element, inserted to the path of one of the poles of the power source in such a manner that the phase shifting device shifts the phase of a first signal propagating through said pole such that the shifted phase of the first signal will be essentially identical to the phase of a second signal propagating through the other pole. The shifted first signal is added to the second signal with essentially the same phase of second signal, whenever both poles are connected together to form a single-wire, through which the resulting added signal propagates.
    Type: Application
    Filed: January 17, 2013
    Publication date: January 1, 2015
    Inventors: Michael Bank, Motti Haridim
  • Patent number: 8841977
    Abstract: A phase shifter, more particularly relates to a phase shifter for controlling phase velocity by using stubs is disclosed. The phase shifter includes a first line configured to deliver a power into corresponding radiation elements, the first line being a conductor, and a second line configured to deliver the power into corresponding radiation elements, the second line being a conductor. Here, a first phase velocity of a first signal propagated through the first line is different from a second phase velocity of a second signal propagated through the second line.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: September 23, 2014
    Assignee: Ace Technologies Corporation
    Inventors: Min-Seok Jung, Byung-Ho Kim
  • Publication number: 20140266898
    Abstract: An improved active, electronically scanned array antenna that employs programmable time delays in the transmission feed lines to form timed arrays is provided. A timed array can be implemented as a nested set of transmission lines, and the programmable time delay can be realized as or in each of the transmission lines such that each transmission line can have a fixed physical length and a programmable electrical length.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Teqnovations, LLC
    Inventor: Thomas Edward Linnenbrink
  • Patent number: 8803636
    Abstract: A voltage-tunable phase shifter comprising a conducting line and a ground electrode separated by a layer of dielectric material, the phase shifter configured to generate an electric field when a potential difference is applied between the conducting line and ground electrode, the electric field configured to change the phase of an electromagnetic signal propagating along the conducting line, wherein the ground electrode comprises graphene, and wherein the change in phase is dependent upon the strength of electric field and can be controlled by varying the potential difference between the conducting line and the ground electrode.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 12, 2014
    Assignee: Nokia Corporation
    Inventor: Vladimir Ermolov
  • Publication number: 20140218130
    Abstract: An integrated device comprises at least one input connector (62) linked to an internal conductive line (64) and at least two output connectors (70A,70B) each respectively linked to an conductive branch (69A, 69B), wherein a single moving part (65), simultaneously serving the functions of a phase-shifter and a power-distributor, which comprises a shared segment (67) divided into two conductive arms (68A, 68B), the shared segment (67) linking the internal conductive line (64) to each of the conductive branches (69A, 69B) respectively, so as to vary, by an equal but opposite quantity, the length of the electric path between the input connector (62) and each of the output conductors (70A,70B) when the moving part (65) moves. The moving part (65) can be actuated from outside the housing, preferentially by means of a transmission bar (66).
    Type: Application
    Filed: June 28, 2012
    Publication date: August 7, 2014
    Applicant: ALCATEL LUCENT
    Inventors: Patrick Lecam, Jean-Pierre Harel, Thomas Julien
  • Publication number: 20140152400
    Abstract: Embodiments of phase shifters (10) include electrical conductors (34) suspended within an electrically-conductive housing (28), and a shuttle (16) having an electrically-conductive plate (74) that provides a variable capacitance between a ground potential and the electrical conductor (34) when the shuttle (16) is moved between a first and second position. The plate (74) is electrically connected to a ground plane (27) of the phase shifter (10) by adjacent electrically-conductive portions (54, 55b, 53a) of the shuttle (16).
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Inventor: John E. Rogers