Using Directional Coupler Patents (Class 333/109)
  • Patent number: 11356084
    Abstract: A phase shifter with a first port and a second port has a triple inductor network with a center inductor connected to the first port and the second port, and first and second peripheral inductors each electromagnetically coupled to the center inductor. A resistance switch network that is connected to the first and second peripheral inductors. The resistance switch network is selectively activatable to set a first state defined at least by a first resistance in a series circuit with the first and second peripheral inductors, a second state defined at least by a second resistance in the series circuit, and a third state defined at least by a third resistance in the series circuit. A transmission signal from the first port to the second port is shifted in phase by a prescribed angle corresponding to forward transmission coefficients for the first state, second state, and third state.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: June 7, 2022
    Assignee: Mobix Labs, Inc.
    Inventors: Oleksandr Gorbachov, Lisette L. Zhang
  • Patent number: 11329354
    Abstract: A slide screw tuner uses a tuning probe that penetrates into the slot of the slabline inclined towards the test port, in order to compensate for the capacitive skewing of the angle of the reflection factor ?. This anti-skewing effect is done by splitting the mobile combo carriage into a fixed and a rotating section, held together by a center pin that allows an adjustable inclination. The linearized trajectory of ? improves the accuracy of interpolation between calibration points.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 10, 2022
    Inventor: Christos Tsironis
  • Patent number: 11309668
    Abstract: A coupler, in particular a resistive coupler, wherein all ports are at least partially or completely arranged in or at a connector. The coupler comprises resistors which are adapted to sum and/or divide the incoming and/or outgoing signal. The resistors are arranged at or in the connector. A sum port and/or at least two dividing ports are arranged on a substrate.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 19, 2022
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Gottfried Holzmann, Waldemar Henrich, Martin Oetjen, Matthias Jelen
  • Patent number: 11196139
    Abstract: Low loss high directivity wire couplers use a wire over ground transmission airline structure and a low diameter coaxial cable ending in a wire loop sensor, which is inserted into ground wall of the transmission line leading into a coupled and an isolated port. Higher, capacitively induced, electrical current, because of the confined zone between signal conductor and ground wall, compares favorably with the antiphase magnetically induced current component in the wire loop sensor and leads to increased coupling and directivity over a frequency range up to at least 70 GHz.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: December 7, 2021
    Inventor: Christos Tsironis
  • Patent number: 11196138
    Abstract: A circulator-coupler device includes a ferrite element, a resonator over and aligned along an axis with the ferrite element, and a plurality of resonator ports connected to the resonator. The plurality of resonator ports includes first and second resonator ports, and a first portion of a perimeter of the resonator extends between the first and second resonator ports. The circulator further includes a coupler element positioned across a gap from the first portion of the perimeter of the resonator, and a coupler port connected to the coupler element. The device also may include a permanent magnet aligned along the axis with the ferrite element, where the permanent magnet biases the ferrite element and causes a signal conducted through the resonator to have a directionality along a rotational direction that extends from the first resonator port to the second resonator port.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 7, 2021
    Assignee: NXP USA, Inc.
    Inventors: Abdulrhman M. S. Ahmed, James Krehbiel, Joseph Staudinger
  • Patent number: 11152679
    Abstract: A directional coupler includes an input connector, an output connector, and at least one tap connector. The directional coupler also includes a primary line connecting the input connector to the output connector and configured to carry an RF signal and an AC signal, and a secondary line connecting the primary line to the at least one tap connector and configured to carry a split off portion of the RF signal. The directional coupler also includes a tapped line circuit which is inhibited from carrying the AC signal. The mainline transformer includes a ferrite element surrounding the primary line and which is split in at least one location to include a gap of non-magnetic material that inhibits saturation of the ferrite element.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 19, 2021
    Assignee: ANTRONIX INC.
    Inventors: Jinquan Wu, Neil Tang
  • Patent number: 11108433
    Abstract: Embodiments herein may relate to an interconnect that includes a transceiver, wherein the transceiver is configured to generate a single side band (SSB) signal for communication over a waveguide and a waveguide interconnect to communicate the SSB signal over the waveguide. In an example, an SSB operator is configured to generate the SSB signal and the SSB signal can be generated by use of a finite-impulse response filter. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 31, 2021
    Assignee: Intel Corporation
    Inventors: Henning Braunisch, Georgios Dogiamis, Jeff C. Morriss, Hyung-Jin Lee, Richard Dischler, Ajay Balankutty, Telesphor Kamgaing, Said Rami
  • Patent number: 11063355
    Abstract: A novel bi-directional vector modulator to be used as an active phase shifter is proposed. The advantages of the active phase shifter include: 1) Compact size—By active current combining technique, short transmission lines are used to perform signal combining rather than using area-consuming Wilkinson combiner or splitter; 2) High phase resolution and flexibility—phase interpolation can be performed by vector addition through m-path vector modulators; 3) High efficiency—no signal switch loss, only switched matching capacitor; 4) Simplified signal interconnection; 5) No passive combiner needed—eliminate large size and losses in the passive combiner); 6) Can have unequal combining and/or splitting by changing the gain of vector modulator, which is difficult to realize with passive combining and/or splitting network; and 7) Can combine different signals.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: July 13, 2021
    Assignee: Tubis Technology INC.
    Inventors: Kenny Kun-Long Wu, James June-Ming Wang
  • Patent number: 10944373
    Abstract: A lumped element directional coupler having an asymmetrical structure. The lumped element directional coupler can be integrated while being compact by using lumped elements, instead of transmission lines, have broadband characteristics through the lumped elements being asymmetrically arranged, and further increase bandwidth by additionally providing a negative capacitor element or, more particularly, a negative capacitor element having loss.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: March 9, 2021
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventor: Sang Woong Yoon
  • Patent number: 10910690
    Abstract: A directional coupler that achieves flattening of a coupling characteristic and size reduction or miniaturization is used in a predetermined frequency band and includes a first terminal, a second terminal, a third terminal, a fourth terminal, a main line, and a sub line. The main line is connected between the first terminal and the second terminal. The sub line is connected between the third terminal and the fourth terminal. In the sub line, a low-pass filter is provided.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Ikuo Tamaru
  • Patent number: 10892538
    Abstract: A coupler-integrated board includes a coupler, a first capacitor, a second capacitor, a resistance element, a matching circuit, and a multilayer circuit board. The coupler includes a main line and a secondary line. The first capacitor is connected in parallel with the secondary line. The second capacitor connects another end of the secondary line to a ground. The resistance element connects the other end of the secondary line to the ground. The resistance element has an impedance lower than a normalized impedance at a predetermined frequency. The matching circuit is connected between one end of the secondary line and a coupling port. The matching circuit matches an impedance at the coupling port to the normalized impedance at the predetermined frequency. The multilayer circuit board includes laminated base material layers. The coupler is integrated with the multiplayer circuit board.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 12, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kunitoshi Hanaoka
  • Patent number: 10833457
    Abstract: An in-line suspended power sensor coupling configuration situated within a high frequency transmission line housing that allows forward, reverse, and sampling voltage elements to all be produced simultaneously on one double sided printed circuit board (PCB). The power sensor coupling allows for calibrated coupling responses across a much wider frequency range with a single PCB assembly, as opposed to the need to cover equivalently sized frequency ranges with multiple individually fabricated coupling element assemblies.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: November 10, 2020
    Inventor: Jefferson Lexa
  • Patent number: 10797760
    Abstract: An apparatus for simultaneous transmit and receive is provided. The apparatus is capable of rejecting or passing transmitter and receiver signals. The apparatus includes: a transmitter; an antenna (e.g., a shared antenna); a receiver including switches controllable by time varying signals; and a quadrature coupler including first, second, third, and fourth ports, wherein the first port is coupled to the transmitter, wherein the second port is coupled to the antenna, and wherein the third and fourth ports are coupled to the receiver.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Oregon State University
    Inventors: Arun Natarajan, Abhishek Agrawal, Sanket Jain, Robin Garg
  • Patent number: 10777910
    Abstract: A high-isolation dual-band antenna is provided, which may be operated in a first frequency band and a second frequency band, and include a ground zone, two radiators and an isolation zone. The radiators may be disposed at the both sides of the ground zone respectively. The isolation zone may include a main body, a first-slot and two second-slots; the first-slot may be disposed at one end of the main body and the second-slots may be disposed at the both sides of the main body respectively. At least a portion of the first-slot and the second-slots may serve as the isolation section of the first frequency band, and at least a portion of each second-slot may serve as the isolation section of the second frequency band, such that the isolation section of the first frequency band may partially overlap the isolation section of the second frequency band.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 15, 2020
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventor: Min-Chi Wu
  • Patent number: 10623057
    Abstract: In accordance with one or more embodiments, a directional coupler includes a first dielectric cable is configured to receive a first electromagnetic wave from the first port and to generate a second electromagnetic wave that propagates along a transmission medium in a first direction without requiring an electrical return path. A second dielectric cable is configured to couple a first portion of the second electromagnetic wave to a second port, wherein a second portion of the second electromagnetic wave continues to propagate in the first direction along the transmission medium. A third dielectric cable is configured to couple the second portion of the second electromagnetic wave to a third port and to isolate the third port from a third electromagnetic wave propagating along the transmission medium in a second direction that is opposite to the first direction.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: April 14, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Thomas M. Willis, III, Paul Shala Henry
  • Patent number: 10623056
    Abstract: In accordance with one or more embodiments, a splitter includes a first port, a second port and a third port. A first dielectric cable is configured to receive a first electromagnetic wave from the first port and to generate, in response to the first electromagnetic wave, a second electromagnetic wave that propagates in a first direction along a transmission medium without requiring an electrical return path, wherein the transmission medium is a bare or insulated wire. A second dielectric cable in proximity to a first side of the transmission medium is configured to couple a first portion of the second electromagnetic wave to the second port. A third dielectric cable in proximity to a second side of the transmission medium configured to couple a second portion of the second electromagnetic wave to the third port.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: April 14, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Thomas M. Willis, III, Paul Shala Henry
  • Patent number: 10601100
    Abstract: A bi-directional coupler architecture that allows an entire radio frequency coupler to be fully integrated with other circuitry on a single IC substrate. Embodiments of the invention use a lumped component architecture instead of quarter-wave transmission lines to reduce area and limit loss on the primary signal line. In some embodiments, two directional couplers of opposite polarities are implemented at least in part using spiral secondary inductors electromagnetically coupled to a shared primary inductor signal line, thus providing a bi-directional coupler architecture.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 24, 2020
    Assignee: pSemi Corporation
    Inventor: Norman L. Frederick, Jr.
  • Patent number: 10542443
    Abstract: A method for testing an air interface device using emulated noise in unassigned uplink resource blocks (RBs) includes, in a network equipment test device including at least one processor, receiving a first downlink signal transmission from an air interface device under test. The method further includes identifying unassigned uplink resource blocks. The method further includes transmitting an uplink signal to the air interface device under test with emulated channel noise in at least one of the unassigned uplink resource blocks. The method further includes receiving, after transmission of the uplink signal to the air interface device under test, a subsequent downlink signal transmission from the air interface device under test. The method further includes determining an effect of the emulated channel noise on resource block assignments.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: January 21, 2020
    Assignee: KEYSIGHT TECHNOLOGIES, INC.
    Inventor: Prasada Rao Devarasetty
  • Patent number: 10438906
    Abstract: A reference circuit includes an integrated circuit (IC) formed on a semiconductor substrate including a first spiral inductor and a second spiral inductor. The first spiral inductor is formed from a first metal layer over the substrate. The second spiral inductor is formed from a second metal layer. The second spiral inductor is offset from the first spiral inductor and includes a first portion overlapping the first spiral inductor. A first capacitor includes a first terminal coupled to receive a radio frequency (RF) signal and a second terminal coupled to a first terminal of the first spiral inductor, and second capacitor includes a first terminal coupled to a second terminal of the first spiral inductor.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 8, 2019
    Assignee: NXP USA, INC.
    Inventors: Joseph Staudinger, James Krehbiel
  • Patent number: 10367268
    Abstract: To provide a leaky-wave antenna that allows dual-polarization without limiting an emission range to either side. The antenna includes as an element unit (AE) a CRLH transmission line configured by multiply connecting CRLH unit cells (UC) in a periodic fashion between one ends and the other ends of two parallel lines (La, Lb). The respective unit cells (UC) have a left-handed series capacitor (C1, C2) on each of the two parallel lines (La, Lb) and have a left-handed parallel inductor (L1) between the two parallel lines (La, Lb). When power is fed between the two parallel lines (La, Lb), the two parallel lines (La, Lb) and the series capacitor (C1, C2) serve to emit a vertical polarization component, and the parallel inductor (L1) and a conductor between the two parallel lines (La, Lb) serve to emit a horizontal polarization component.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: July 30, 2019
    Assignee: Denki Kogyo Company, Limited
    Inventors: Ichiro Oshima, Takuya Seki
  • Patent number: 10340575
    Abstract: A directional coupler includes an input terminal, an output terminal, a coupling terminal, a termination terminal, a first ground terminal, second ground terminals, a main line, a first sub line, and a second sub line. A first low pass filter is included between the coupling terminal and the first sub line. A second low pass filter is included between the first sub line and the second sub line. The first low pass filter is electrically connected to the first ground terminal, and the second low pass filter is electrically connected to the second ground terminals.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 2, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akira Tanaka
  • Patent number: 10289144
    Abstract: A power multiplier and method are provided. The power multiplier includes a power multiplying network that is a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplier also includes a launching network, and a directional coupler that couples the launching network to the power multiplying network. The power multiplier provides for power multiplication at nominal power generation frequencies such as 50 Hertz, 60 Hertz, and other power frequencies, in a compact circuit.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: May 14, 2019
    Assignee: CPG Technologies, LLC
    Inventor: James F. Corum
  • Patent number: 10263315
    Abstract: A directional coupler includes a first signal transmission line disposed between a signal input terminal and a signal output terminal, a coupled line disposed between a coupled output terminal and a resistance connection terminal and electromagnetically coupled to the first signal transmission line, switching terminals connected to a switching element of an IC chip, and a second signal transmission line in which a connection state with respect to the first signal transmission line is switched in accordance with a connection switching operation between the switching terminals by the switching element. The second signal transmission line is connected in parallel to the first signal transmission line in accordance with the connection switching operation between the switching terminals by the switching element when an electric signal in a first frequency band at low frequency is input to the signal input terminal.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: April 16, 2019
    Assignee: Kyocera Corporation
    Inventor: Tetsuya Okamoto
  • Patent number: 10236240
    Abstract: In one or more embodiments, a substrate includes a patterned conductive layer and a reference layer. The patterned conductive layer includes a pair of first conductive traces, a pair of second conductive traces and a reference trace between the pair of first conductive traces and the pair of second conductive traces. The reference layer is above the patterned conductive layer and defines an opening.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 19, 2019
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Yuan-Hsi Chou, Tsun-Lung Hsieh, Chen-Chao Wang
  • Patent number: 10171112
    Abstract: An RF diplexer is provided that includes a first channel and a second channel. The first channel includes a first primary inductor. Similarly, the second channel includes a second primary inductor. A first directional coupler for the first channel includes a first transformer formed by the first primary inductor and also a first secondary inductor. A first terminal for the first secondary inductor is a coupled port for the first directional coupler. A second directional coupler for the second channel includes a second transformer formed by the second primary inductor and also a second secondary inductor. A first terminal for the second secondary inductor is a coupled port for the second directional coupler.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: January 1, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yunfei Ma, Chengjie Zuo, David Berdy, Daeik Kim, Changhan Yun, Je-Hsiung Lan, Mario Velez, Niranjan Sunil Mudakatte, Robert Mikulka, Jonghae Kim
  • Patent number: 10158508
    Abstract: Methods, systems, and apparatuses are described for generating a phase-shifted signal in a transmit path and a receive path of a transceiver. When transmitting, a quadrature hybrid in the transmit path generates at least one in-phase signal and at least one quadrature signal based on a modulated signal. Phase shifters generate phase-shifted versions of the modulated signal based on a combination of these signals. When receiving, antennas receive a modulated signal and provide the modulated signal to phase shifters in the receive path. Each phase shifter modifies its received modulated signal. A matching network combines each of the modified modulated signals and provides at least one combined modulated signal to a quadrature hybrid. The quadrature hybrid generates a phase-shifted version of the modulated signal based on the at least one combined signal.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: December 18, 2018
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Michael Boers, Wei Liat Chan, Tirdad Sowlati, Bevin Perumana
  • Patent number: 10135107
    Abstract: A directional coupler according to the invention includes an opening in a wall surface of a waveguide, and a coupling line on an outer side of the waveguide. The opening is configured to not cross a tube axis of the waveguide in plan view, and to emit a circularly polarized wave. The coupling line includes first and second transmission lines and output parts disposed at both ends, the first and second transmission lines extending across the opening to cross the tube axis in plan view and being opposed to each other across the center of the opening. The first and second transmission lines are interconnected at a position displaced from an area vertically above the opening.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: November 20, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Yoshino, Tomotaka Nobue, Kenji Yasui, Yoshiharu Omori, Masafumi Sadahira, Masayuki Kubo
  • Patent number: 10062946
    Abstract: Programmable multi-reflective phase shifters which provide reduced root-mean-square phase error, can be optimized for a desired frequency band, can compensate for process variations arising during manufacture, and can help offset system level performance shortfalls. Embodiments include a hybrid coupler (e.g., a Lange hybrid coupler) in combination with a multi-reflective reactance-based terminating circuit with a number of different configurations that permit various modes of operation, including a thermometric mode, a phase overlap mode with interstitial phase shift states, an extended range phase shift mode, and a “tweak bit” mode. A number of programmable or selectable RF phase shifters can be series or parallel connected to provide a desired gamut of phase shift.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: August 28, 2018
    Assignee: pSemi Corporation
    Inventors: Vikas Sharma, Peter Bacon, Mark Moffat
  • Patent number: 10027292
    Abstract: An apparatus includes a first directional coupler, a second directional coupler, a first detector, and a second detector. A through port of the first directional coupler is coupled to a through port of the second directional coupler. An isolated port of the first directional coupler is coupled to an isolated port of the second directional coupler. A coupled port of the first directional coupler is coupled to the first detector. A coupled port of the second directional coupler is coupled to the second detector. A detected power signal is generated by combining an output of the first detector and an output of the second detector.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: July 17, 2018
    Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
    Inventor: Kohei Fujii
  • Patent number: 10008758
    Abstract: A directional coupler utilizes an inductive element of a power amplifier and a coupled conductive element. The inductive element of the power amplifier is a functioning element within the power amplifier and at least part of the inductive element of the power amplifier is disposed in a multi-layer substrate. At least part of the coupled conductive element is disposed in the multi-layer substrate. The coupled conductive element is configured to be inductively coupled to the inductive element of the power amplifier such that the coupled conductive element carries a first RF signal that is representative of a second RF signal within the inductive element of the power amplifier.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 26, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Kiyoshi Kase, Marius Goldenberg, Susanne A. Paul
  • Patent number: 9991933
    Abstract: The invention relates to an attenuator for stepwise attenuating a radio frequency signal. The attenuator comprises a first attenuation module that is configured to stepwise attenuate a radio frequency signal within a first signal frequency range. The attenuator comprises a second attenuation module that is configured to stepwise attenuate a radio frequency signal with a second signal frequency range, wherein the second attenuation module is arranged in parallel to the first attenuation module. The attenuator further comprises a switching element, wherein the switching element switches either the first attenuation module or the second attenuation module to an output node of the attenuator.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: June 5, 2018
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Simon Schmid
  • Patent number: 9964571
    Abstract: A directional coupler is configured to provide a forward and/or a backward signal derived from a high-frequency signal. The directional coupler comprises a coupling element coupled to a main line, wherein the main line is configured to transport the high frequency signal. The directional coupler further comprises a signal line connecting the coupling element to a measuring port. The signal line comprises a defected ground structure inserted between the coupling element and the measuring port.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: May 8, 2018
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Andreas Andrei, Raimon Göritz
  • Patent number: 9960496
    Abstract: An antenna having a low loss rate, high radiation directivity, and wideband characteristics in a millimeters wavelength region to be suitable for 5th-Generation (5G) communication, and having a low-profile structure to reduce air resistance when installed in a vehicle includes a feed circuit through which a radio signal provided from a feed point is transmitted; and a plurality of radiation units, each radiation unit including a diverging wall configured to cause the radio signal transmitted through the feed circuit to diverge in at least two directions, and at least two diverging cavities through which radio signals diverged by the diverging wall are transmitted. A vehicle including the antenna is described.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: May 1, 2018
    Assignee: Hyundai Motor Company
    Inventor: Dongjin Kim
  • Patent number: 9954562
    Abstract: Circuits and methods related to radio-frequency (RF) power couplers. In some embodiments, an RF circuit can include a first circuit having a frequency response that includes a feature within a selected frequency range, and a second circuit coupled to the first circuit such that the feature of the frequency response is at least in part due to the coupling. The RF circuit can further include an adjustment circuit configured to move the feature away from the selected frequency range. In some embodiments, such an RF circuit can be implemented in a packaged module which in turn can be included in a wireless device.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 24, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventors: Russ Alan Reisner, John C. Baldwin
  • Patent number: 9838055
    Abstract: A directional coupler including a main line, a sub-line, an input terminal, an output terminal, a coupling terminal and an isolation terminal, wherein the main line includes a first main-line section formed on a first layer, and a second main-line section formed on a second layer; the first and the second main-line sections are connected in parallel between the input and the output terminals; the sub-line includes a first sub-line section formed on the first layer, and a second sub-line section formed on the second layer; the first and the second sub-line sections are connected in parallel between the coupling and the isolation terminals; the first main-line section and the first sub-line section are disposed in close proximity to each other to generate electromagnetic coupling; and the second main-line section and the second sub-line section are disposed in close proximity to each other to generate electromagnetic coupling.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 5, 2017
    Assignee: TDK Corporation
    Inventor: Yukio Mitake
  • Patent number: 9812757
    Abstract: Aspects of this disclosure relate to a radio frequency coupler with a multi-section coupled line. In an embodiment, an apparatus includes a radio frequency coupler that includes a power input port, a power output port, a coupled port, a multi-section coupled line, and a switch configured to adjust an effective length of the multi-section coupled line electrically connected to the coupled port.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 7, 2017
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Nuttapong Srirattana, David Scott Whitefield, David Ryan Story, Zhiyang Liu
  • Patent number: 9799444
    Abstract: This disclosure relates generally to directional couplers. In one embodiment, a directional coupler includes a first port, a second port, a third port, a first inductive element, a second inductive element, a first switchable path, and a second switchable path. The first inductive element is coupled between the first port and the second port, while the second inductive element is mutually coupled to the first inductive element. The first switchable path is configured to be opened and closed, wherein the first switchable path is coupled between a first location of the second inductive element and the third port. The second switchable path is configured to be opened and closed, wherein the second switchable path is coupled between a second location of the second inductive element and the third port. In this manner, a directivity of the directional coupler can be switched between a forward direction and a reverse direction.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 24, 2017
    Assignee: Qorvo US, Inc.
    Inventors: Marcus Granger-Jones, John Robert Siomkos, Jeppe Korshøj Bendixen, John Avery Capwell, Jayanti Jaganatha Rao
  • Patent number: 9793592
    Abstract: Aspects of this disclosure relate to a radio frequency coupler with a decoupled state. In an embodiment, an apparatus includes a radio frequency coupler and a switch network. The radio frequency coupler has at least a power input port, a power output port, a coupled port, and an isolated port. The switch network can electrically connect a termination impedance to the isolated port in the first state, and the switch network can decouple an RF signal traveling between the power input port and the power output port from the isolated port and the coupled port in a second state.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 17, 2017
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Nuttapong Srirattana, David Scott Whitefield, David Ryan Story
  • Patent number: 9780429
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 3, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Patent number: 9755608
    Abstract: A technique relates to a superconducting microwave device. A left-handed resonator include at least one unit cell. A non-linear dispersive medium is connected to the left-handed resonator, such that one end of the left-handed resonator is connected to the non-linear dispersive medium and an opposite end of the left-handed resonator is connected to a port. The left-handed resonator and the non-linear dispersive medium are configured to output a quantum signal in a squeezed state.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 5, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Baleegh Abdo
  • Patent number: 9705614
    Abstract: A test arrangement includes a multi-port test interface having a first waveguide coupled to a plurality of second waveguides. The first waveguide is arranged to propagate an input signal and each of the second waveguides is arranged to output the input signal, providing a plurality of test signals to be supplied to a communications apparatus. Such a test interface may also be used to output respective channel signals in a multiplexed signal received from a communications apparatus. The test interface permits the provision and/or monitoring of a large number of channel signals without separate respective connections to the communications apparatus. This may be particularly useful where tests are performed in a constrained space and/or where repeated access to the apparatus is impractical. The simultaneous provision of many channel signals may allow evaluation of co-channel interference.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: July 11, 2017
    Assignee: ASTRIUM LIMITED
    Inventor: Ian Morris
  • Patent number: 9692103
    Abstract: Aspects of this disclosure relate to a radio frequency coupler and a switch between a port of the radio frequency coupler and an adjustable termination impedance circuit. In an embodiment, an apparatus includes a radio frequency (RF) coupler, a termination impedance circuit, and a switch circuit. The RF coupler can provide an indication of forward RF power at a coupled port in a forward power state and provide an indication of reverse RF power at an isolated port in a reverse power state. The termination impedance circuit can provide an adjustable termination impedance. The switch circuit can electrically connect the termination impedance circuit to the isolated port in the forward power state and electrically isolate the termination impedance circuit from the isolated port of the RF coupler in the reverse power state.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 27, 2017
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Nuttapong Srirattana, David Scott Whitefield, David Ryan Story
  • Patent number: 9685992
    Abstract: To provide network connectivity in a building using existing electrical wiring and circuitry, a circuit panel network system is provided to interface between a network connection and the electrical circuit. Traditional breakers on the electrical panel that provide overload circuit-protection devices can be replaced with circuit breaker devices that have transceivers and power line communication chipsets in addition to overload circuit-protection devices. A network interface unit that receives broadband network connectivity from a network demarcation point inside or outside the building can wirelessly transfer data to and from the circuit breaker devices, which then distribute the data over the electrical circuits via the power line communication chipsets on the circuit breaker devices.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 20, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Robert Bennett, Irwin Gerszberg
  • Patent number: 9673504
    Abstract: A miniaturized multi-sectioned, directional coupler using a multi-layer MMIC process, the coupler comprising, a monolithic microwave integrated circuit, having a central section with a relatively tight coupling, surrounded by sections of lighter coupling, the relatively tight coupling being comprised of a pair of spiral coupled lines, and the lighter coupling being comprised of meandered edge couple lines with capacitive loading of the lines in several places.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 6, 2017
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: David E. Meharry
  • Patent number: 9653771
    Abstract: A directional coupler includes: a main line connecting an input port and an output port; first to third subline sections each of which is formed of a line configured to be electromagnetically coupled to the main line; a first matching section provided between the first subline section and the second subline section; and a second matching section provided between the second subline section and the third subline section. The first and second matching sections are configured to cause changes in phase of high frequency signals passing therethrough, and have mutually different characteristics so as to create two attenuation poles in the frequency response of the coupling of the directional coupler.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 16, 2017
    Assignee: TDK CORPORATION
    Inventors: Noriaki Ootsuka, Takeshi Kijima, Yasunori Sakisaka, Yuta Ashida
  • Patent number: 9647314
    Abstract: A directional coupler for a wireless communication device includes a first input port, a first output port, a second input port, a second output port, and a coupled port. The first input port and the first output port are respectively configured to receive and provide a first signal to be transmitted from the wireless communication device. The second input port and the second output port are respectively configured to receive and provide a second signal to be transmitted from the wireless communication device. A coupled port is configured to selectively provide a coupled signal corresponding to each of, in respective modes, the first signal and the second signal.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: May 9, 2017
    Assignee: Marvell International Ltd.
    Inventors: Huy Thong Nguyen, Poh Boon Leong, Xiaowei Zhong, Sun Shuo
  • Patent number: 9614269
    Abstract: Aspects of this disclosure relate to a radio frequency coupler and an adjustable termination impedance circuit. In an embodiment, an apparatus includes a radio frequency coupler and a termination impedance circuit configured to provide an adjustable termination impedance, in which the termination impedance circuit includes two switches and a passive impedance element in series between a reference potential and a selected port of the RF coupler, the selected port being one of an isolated port of the RF coupler or a coupled port of the RF coupler.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: April 4, 2017
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Nuttapong Srirattana, David Scott Whitefield, David Ryan Story
  • Patent number: 9484875
    Abstract: An active attenuator is disclosed. The attenuator includes a divider to divide an input signal into two signals, a phase shifter to shift a phase of one of output signals of the divider, and a combiner to combine an output of the phase shifter with another of output signals of the divider. The phase shifter includes a coupler and two reflectors, or two amplifiers to cause a phase difference between two signals.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 1, 2016
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Osamu Anegawa
  • Patent number: 9450572
    Abstract: A self-cascadable phase shifter having a two corresponding pairs of input and output pins. Each pair of input and output pins are interconnected by phase delay circuitry that is isolated from phase delay circuitry interconnecting the other pair of input and output pins so that each pair of input and output pins produces, for example, a 90 degree phase shift. The resulting phase shifter can be used to produce a 90 degree by using one pair of input and output pins or cascading both pairs of input and output pins to provide a 180 degree delay.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: September 20, 2016
    Assignee: Anaren, Inc.
    Inventors: Bo Jensen, Chong Mei
  • Patent number: 9444561
    Abstract: The subject matter described herein includes methods, systems, and computer readable media for simulating per-UE Doppler shifts. One exemplary method includes generating uplink signals to be transmitted from a plurality of different simulated UEs to an air interface device under test. The method further includes applying per-UE Doppler shifts to the signals, wherein applying per-UE Doppler shifts includes applying different Doppler shifts to at least some of the signals. The method further includes transmitting the signals to the air interface device under test.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 13, 2016
    Assignee: IXIA
    Inventors: Prasada Rao Devarasetty, Zhiyong Yan