Having Lumped Parameters Or Impedances Patents (Class 333/112)
  • Patent number: 10859612
    Abstract: A testing device for an apparatus of an energy system which has inputs that can be connected in a conductive manner to at least one current transformer and at least one voltage transformer. The testing device is designed to apply a first test signal to a secondary side of the voltage transformer and, at the same time, to apply a second test signal to a primary side of the current transformer.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: December 8, 2020
    Assignee: Omicron electronics GmbH
    Inventors: Ulrich Klapper, Steffen Kaiser
  • Patent number: 10714806
    Abstract: A bi-directional coupler includes a first individual directional coupler and a second individual directional coupler, which are individual electronic components having mutually equivalent circuit configurations. Each of the first and second individual directional couplers includes: a first terminal; a second terminal; a third terminal; a fourth terminal; a main line connecting the first terminal and the second terminal; and a subline connecting the third terminal and the fourth terminal. The subline includes first and second coupling line sections configured to be electromagnetically coupled to the main line, and a matching section provided between the first and second coupling line sections. The second terminal of the second individual directional coupler is electrically connected to the second terminal of the first individual directional coupler.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 14, 2020
    Assignee: TDK CORPORATION
    Inventors: Noriaki Ootsuka, Keisuke Yoshida
  • Patent number: 10594291
    Abstract: A branch line coupler and active antenna system are provided. In an embodiment, the branch line coupler comprises four resonators. The four resonators are formed by a body and a grounded element. A resonator comprises a capacitor element and an inductor element. A first portion of the capacitor element comprises at least a portion of the body and a second portion comprises at least a portion of the grounded element. The inductor element is connected to the capacitor element in parallel. The inductor element comprises at least a portion of the body and extends to the grounded element. The first and second resonators are coupled by a first coupling, the second resonator and the third resonator are coupled by a second coupling, the third resonator and the fourth resonator are coupled by a second third coupling, and the fourth resonator and the first resonator are coupled by a fourth coupling.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: March 17, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Huairen Yi, Zhengxiang Ma
  • Patent number: 10587028
    Abstract: A directional coupler has a first port, a second port, a third port, and a fourth port. A first inductor has a first connection to the first port and a second connection to the second port. A second inductor has a first connection to the third port and a second connection to the fourth port. A first compensation capacitor is connected to the first port and the third port. A second compensation capacitor is connected to the first port and the fourth port. The first inductor is inductively coupled to the second inductor by a predefined coupling factor, the third port is isolated from the first port by a predefined first isolation factor, and the fourth port is isolated from the first port by a predefined second isolation factor. An inductance of the second inductor is substantially greater than an inductance of the first inductor.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 10, 2020
    Assignee: BEREX CORPORATION
    Inventors: Oleksandr Gorbachov, Lisette L. Zhang
  • Patent number: 10497631
    Abstract: An insulated DC-DC converter includes a substrate, a transformer, a primary side electronic component and a primary side wire defining a primary side circuit together with a primary winding, a secondary side electronic component and a secondary side wire defining a secondary side circuit insulated from the primary side circuit, together with a secondary winding, the secondary side electronic component including a choke coil, and an inter-circuit electronic component and an inter-primary side circuit wire connected over the primary side circuit and the secondary side circuit while insulating the primary side circuit and the secondary side circuit from each other in a DC manner.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: December 3, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takami Muto, Takayuki Yamamoto, Takayoshi Nishiyama, Naoto Kinoshita, Yuki Abura, Yoshihiro Matsumoto
  • Patent number: 10455437
    Abstract: A mobile monitoring device including a data signal interface for coupling to a data line arranged in an aircraft and carrying one or more sensor signals, such that, in operation, the data signal interface branches off and receives as input signal part of the energy of the sensor signals carried on the data line such that the input signal is characteristic of the one or more sensor signals, and provide an output signal characteristic of the input signal. The mobile monitoring device further includes a wireless communication interface connected to the data signal interface for receiving the output signal and adapted to wirelessly transmit the output signal to a remote location. The present disclosure further relates to a system including an aircraft and the mobile monitoring device, and to a method of collecting sensor measurement data from a plurality of sensors of an aircraft using the mobile monitoring device.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: October 22, 2019
    Assignee: Airbus Operations GmbH
    Inventors: Jan Mueller, Tim Fuss
  • Patent number: 10276913
    Abstract: The element body includes a main line; a first sub line and a second sub line; a pair of ground layers that are disposed to face each other at positions at which the main line, the first sub line, and the second sub line are interposed in a stacking direction of the plurality of insulator layers; a phase control circuit that is connected between the first sub line and the second sub line and is disposed at a position at which one ground layer is interposed between the first sub line and the second sub line in the stacking direction; and a connection line that connects the first sub line and the second sub line to the phase control circuit. The connection line is surrounded by at least one of one ground layer and a conductor having the same potential as the ground layer when viewed in the stacking direction.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: April 30, 2019
    Assignee: TDK CORPORATION
    Inventor: Tetsuzo Goto
  • Patent number: 10236860
    Abstract: A filter circuit can include a plurality of elementary Fano resonator circuits electrically coupled to each other. Each elementary Fano resonator circuit can include a closed loop circuit including a combination of at least three inductive and/or capacitive components and at least two ports. At least one port of the at least two ports can correspond to a node of the filter circuit not within the closed loop circuit. The elementary Fano resonator circuit can also include a branch including at least one other inductive or capacitive component and extending between a node of the closed loop circuit and a port of the at least one port corresponding to a node of the filter circuit not within the closed loop circuit.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 19, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventor: Alexander B. Kozyrev
  • Patent number: 10218331
    Abstract: The disclosure provides a quadrature hybrid. The quadrature hybrid has a first, second, third and fourth ports. The quadrature hybrid comprises: a substrate having a plurality of dielectric layers; a first, second and third capacitors, each capacitor having a first predetermined number of layers each being arranged on one of the plurality of dielectric layers; and a first, second, third and fourth inductors, each inductor having a second predetermined number of layers each being arranged on one of the plurality of dielectric layers.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: February 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bo Zhou, Yang Ji, Junyou Chen
  • Patent number: 10200008
    Abstract: A power combiner has at least two uncommon ports and at least one common port. Isolation between the uncommon ports over a broad band is achieved through a lossy band response circuit having a phase and amplitude response effective to compensate for changes in phase and amplitude between the uncommon ports with change in frequency of an input signal. The lossy band response circuit may have a resistance approximating a resistance effective to isolate the uncommon ports over a bandwidth at a center frequency. A coupler may likewise increase the band for which an input port is isolated from the isolated port by coupling a lossy circuit between the input port and isolated port. The lossy circuit may be embodied as a lossy band response circuit.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: February 5, 2019
    Inventor: Karl L. Thorup
  • Patent number: 10181631
    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: May 12, 2017
    Date of Patent: January 15, 2019
    Assignee: pSemi Corporation
    Inventor: Norman L. Frederick
  • Patent number: 10122213
    Abstract: Disclosed herein is a wireless power supplying system, including a power transmission device adapted to transmit power supplied thereto, a repeater device adapted to repeat the transmission power of the power transmission device, and a power reception device adapted to receive the power repeated by said repeater device.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: November 6, 2018
    Assignee: SONY CORPORATION
    Inventor: Takaaki Hashiguchi
  • Patent number: 10084225
    Abstract: A directional coupler includes a first to a fourth port, a main line connecting the first port and the second port, a first and a second subline section configured to be electromagnetically coupled to the main line, and a phase shifter. The first subline section, the phase shifter, and the second subline section are arranged in this order in series between the third port and the fourth port. The phase shifter outputs a signal that is phase-delayed relative to an input signal. The phase delay amount of the output signal of the phase shifter relative to the input signal increases with increasing frequency of the input signal. A frequency twice as high as the frequency of the input signal at which the phase delay amount is 90 degrees is lower than the frequency of the input signal at which the phase delay amount is 180 degrees.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 25, 2018
    Assignee: TDK CORPORATION
    Inventors: Yuta Ashida, Noriaki Ootsuka, Takeshi Kijima, Yasunori Sakisaka, Tetsuzo Goto
  • Patent number: 10050328
    Abstract: There is provided a cable tap device for a CATV network comprising a microstrip directional coupler on an electrical path between an input and an output arranged to communicate with a splitter device associated with a plurality of tap ports. A ferrite core directional coupler is arranged in parallel with microstrip directional coupler with low frequency signals passing through ferrite core directional coupler and high frequency signals passing through the microstrip directional coupler.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 14, 2018
    Assignee: Technetix B.V.
    Inventors: Martien Rijssemus, Matthijs Laro
  • Patent number: 10043638
    Abstract: A compact configurable radio frequency (RF) matching network for matching RF energy output from an RF generator to a variable impedance load is disclosed. The matching network includes an input connector; an output connector; and a component assembly array including one or more tune and load electrical components. At least one of the electrical components is coupled to the input connector, at least one of the electrical components is coupled to the output connector, the component assembly array is adapted to be arranged in a selected topology, and the selected topology is adapted to reduce RF energy reflected from the variable impedance load. Numerous other aspects are provided.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: August 7, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Jozef Kudela, Ranjit I. Shinde, Suhail Anwar
  • Patent number: 9935350
    Abstract: A device for damping a standing wave on a waveguide carrying a signal is provided. The device includes at least one pair of an impedance-up-transforming and an impedance-down-transforming Boucherot bridge is connected into the waveguide. The two Boucherot bridges bring about locally increased impedances and inductance values, with the result that a significantly improved standing wave suppression or damping is obtained. The down-transforming Boucherot bridge is connected directly behind the up-transforming bridge, with the result that down-transformation to the original impedance of the waveguide again can be carried out and a signal reflection can thus be avoided.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: April 3, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ralph Oppelt
  • Patent number: 9913364
    Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 6, 2018
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Chun Choi, Soon Koo Shim, Young Bin Chong, Nam Jin Choi, Won Gook Lee, Min Goo Lee, Kyung Hoon Jo
  • Patent number: 9912298
    Abstract: Systems and methods related to linear load modulated power amplifiers. A power amplifier (PA) system can include an input circuit configured to receive a radio-frequency (RF) signal and split the RF signal into a first portion and a second portion. The PA system can further include a Doherty amplifier circuit including a carrier amplifier coupled to the input circuit to receive the first portion and a peaking amplifier coupled to the input circuit to receive the second portion. The first portion and the second portion can have different phases and/or different powers. The PA system can further include an output circuit coupled to the Doherty amplifier circuit. The output circuit can be configured to combine outputs of the carrier amplifier and the peaking amplifier to yield an amplified RF signal.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 6, 2018
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Aleksey A. Lyalin, Russ Alan Reisner, Ramon Antonio Beltran Lizarraga
  • Patent number: 9905901
    Abstract: Differing from conventional directional coupling device being implemented on a coin-like planar board, the present invention stacks a bottom substrate, at least one phase retarding unit, at least one reference ground unit, a coupled circuit layer, a main circuit layer, and a top substrate to form a miniature directional coupling device. Because this miniature directional coupling device not occupies too much circuit area when being applied in a mobile communication product, the miniature directional coupling device can meet the requirements of light weight and compact size demanded by high-technology mobile communications for the electronic components. It is worth explaining that, since the said phase retarding unit consists of many end-to-end connected transmission wires, engineers skilled in designing microwave circuit are able to carry out the modulation of coupling flatness of the miniature directional coupling device by changing a total length of the end-to-end connected transmission wires.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 27, 2018
    Assignee: ADVANCED CERAMIC X CORPORATION
    Inventors: Jhin-Ying Lyu, Wei-Jen Lee, Jyh-Wen Sheen
  • Patent number: 9905902
    Abstract: A zero insertion loss directional coupler includes an input port, an antenna port, an isolation port, and a detect port. The coupler has a first signal trace, a second signal trace, and an inductive winding. The first signal trace is on one of two layers and is connected to the input port and the antenna port, while the inductive winding is on another one of the two layers. A first terminal of the inductive winding is connected to the isolation port. A first terminal of the second signal trace is connected to the detect port and a second terminal of the second signal trace is connected to a second terminal of the inductive winding.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: February 27, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventors: Lisette L. Zhang, Oleksandr Gorbachov
  • Patent number: 9893408
    Abstract: A directional coupler includes: a first to a fourth port; a main line connecting the first and second ports; a first to a fourth subline section electromagnetically coupled to the main line; a first to a third matching section; and a stack. The first subline, first matching, third subline, third matching, fourth subline, second matching, and second subline sections are arranged in this order between the third and fourth port. The first and second matching sections include an inductor connecting two subline sections located on opposite sides of the matching section. Each of one or more conductor layers used to form the inductor includes two connection portions for electrical connection to respective other elements, and a line portion connecting the two connection portions. The inductor excluding the connection portions does not include potions that overlap each other when viewed in the stacking direction of the stack.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: February 13, 2018
    Assignee: TDK CORPORATION
    Inventors: Yuta Ashida, Yasunori Sakisaka, Noriaki Ootsuka, Tetsuzo Goto, Takeshi Kijima
  • Patent number: 9627739
    Abstract: The system includes a first printed circuit board including a first transmission line, the first circuit board may be attached to a chassis and a second printed circuit board including a second transmission line, the second circuit board may be attached to the chassis and/or the first printed circuit board and the second transmission line configured to electrically couple power from the first transmission line.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 18, 2017
    Assignee: Alcatel Lucent
    Inventor: Theodore Timaru
  • Patent number: 9577586
    Abstract: The feed reflected Doherty amplifier utilizes the output characteristics of the carrier amplifier to control the input signal of the peaking amplifier to improve the gain, linearity and efficiency of a Doherty amplifier. The feed reflected Doherty amplifier comprises an input power splitter, a carrier amplifier branch and a peaking amplifier branch combined into a common load, an output directional coupler and an input directional coupler connected via a phase shift element.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: February 21, 2017
    Assignee: Aselsan Elektronik Sanayi ve Ticaret Anonim Sirketi
    Inventor: Erkan Uzunoglu
  • Patent number: 9531054
    Abstract: A directional coupler includes an outer cavity and first and second striplines deployed within the outer cavity such that transverse electromagnetic (TEM) mode signals are coupled between first portions of the first stripline and the second stripline. The directional coupler also includes first and second electrically and thermally conductive elements connecting the first and second striplines, respectively, to the outer cavity.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: December 27, 2016
    Assignee: ALCATEL-LUCENT SHANGHAI BELL CO., LTD.
    Inventors: Nicholas P. Wymant, Dieter Pelz, Weijia Chi
  • Patent number: 9391587
    Abstract: The present invention relates to a component (BE) which has a first duplexer operating with acoustic waves and a second duplexer operating with acoustic waves, wherein the first and second duplexers are arranged in a single SMD housing. In addition, the invention relates to a module (MO), which interconnects such a component (BE) and at least three 90° hybrids (HYB1-HYB3) to form an enhanced duplexer. A further aspect of the invention relates to a 2in1 hybrid, in which two 90° hybrids (HYB3, HYB4) or one 90° hybrid (HYB3) and one 180° hybrid (BAL) are arranged on a single chip.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: July 12, 2016
    Assignee: EPCOS AG
    Inventor: Edgar Schmidhammer
  • Patent number: 9357660
    Abstract: A printed wiring board includes a core substrate having opening, an electronic component device accommodated in the opening of the substrate and including inductor and passive components, a wiring structure connecting the inductor and passive components in the electronic device, a filler resin body filling space formed between the substrate and electronic device in the opening of the substrate, a first buildup layer including a first interlayer insulation layer on first surface of the substrate, a first conductive layer on the first insulation layer, and a first via conductor in the first insulation layer, and a second buildup layer including a second interlayer insulation layer on second surface of the substrate on the opposite side of the first surface of the substrate, a second conductive layer on the second insulation layer, and a second via conductor in the second insulation layer.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 31, 2016
    Assignee: IBIDEN CO., LTD.
    Inventors: Kazuhiro Yoshikawa, Liyi Chen, Toshiki Furutani
  • Patent number: 9325388
    Abstract: A telemetry system for use in a combustion turbine engine (10) comprising a sensor (428) in connection with a rotating component such as a turbine blade, and a telemetry transmitter circuit (418) affixed to the turbine blade and in electrical communication with the sensor (428) for routing electronic data signals from the sensor (428) to the telemetry transmitter circuit (418). An induction power system is provided to power the telemetry transmitter circuit (418) and includes a plurality of primary induction coil assemblies (400) each including a primary planar winding (410) formed on a respective ceramic substrates (404), which are mounted end to end on a static seal segment (323) of a stator (180). The induction power system also includes a secondary induction coil assembly (402) comprising a secondary planar winding (412) formed on a ceramic substrate (404), which is mounted to an end face of a turbine blade root (132).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 26, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventor: Alex J. Bevly, III
  • Patent number: 9312592
    Abstract: An adjustable directional coupler circuit includes a directional coupler and a correction circuit. The directional coupler includes a first port for receiving an input signal; a second port for outputting the input signal to a load; a third port for outputting a first coupled signal including a desired first coupled signal proportional to forward power of the input signal and an extraneous first coupled signal proportional to reverse power of a reflected signal; and a fourth port for outputting a second coupled signal including a desired second coupled signal proportional to the reverse power and an extraneous second coupled signal proportional to the forward power. The correction circuit adjusts magnitude and phase of a sample of the second coupled signal to provide an adjusted second coupled signal, and to sum the adjusted second coupled signal and the first coupled signal to cancel the extraneous first coupled signal.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 12, 2016
    Assignee: Keysight Technologies, Inc.
    Inventor: Terrence R. Noe
  • Patent number: 9240623
    Abstract: A device for coupling microwave signals with arbitrary phase shifts and power split ratios over broadband may comprise a first branch comprising a cascade of first stripline sections connected to one another. A second branch may comprise a cascade of second stripline sections connected to one another. A single stripline section and a capacitor may be coupled in series to at least one of the branches. The first stripline sections of the first branch and the corresponding second stripline sections of the second branch form broadside coupled stripline sections. Those cascaded coupled stripline sections may be arranged to have a monotonically changing horizontal offsets but at a uniform vertical distance.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 19, 2016
    Assignee: Lockheed Martin Corporation
    Inventor: Leah Wang
  • Patent number: 9190979
    Abstract: This disclosure relates to hybrid couplers for radio frequency (RF) signals. The hybrid coupler includes a first port, a second port, a third port, a fourth port, a first inductive element connected from the first port to the third port, and a second inductive element connected from the second port to the fourth port. The hybrid coupler further includes a first capacitive element and a second capacitive element. The first capacitive element is connected between an intermediary node of the first inductive element and either the first port or the third port, while the second capacitive element is coupled between an intermediary node of the second inductive element and either the second port or the fourth port. Accordingly, the first capacitive element and a portion of the first inductive element and the second capacitive element and a portion of the second capacitive element each form a harmonic trap.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: November 17, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Michael F. Zybura, Ruediger Bauder
  • Patent number: 9184483
    Abstract: A directional coupler, comprising a first high-frequency line for feeding a first high-frequency signal, a second high-frequency line for feeding a second high-frequency signal, and a coupling line for outputting signals from the first and the second high-frequency lines, wherein the coupling line comprises resistive segments, each comprising a predetermined impedance. Coupling properties and resistive damping and adapting properties can be integrated in the coupling line. A compact and low-cost construction of the directional coupler is thus made possible.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: November 10, 2015
    Assignee: Epcos AG
    Inventors: Gerhard Zeller, Manfred Stadler, Edgar Schmidhammer, Pasi Tikka
  • Patent number: 9077061
    Abstract: A directional coupler used in a predetermined frequency band includes a main line connected between a first terminal and a second terminal. A first sub line is connected to a third terminal and is electromagnetically coupled to the main line. A second sub line is connected to a fourth terminal and is electromagnetically coupled to the main line. A low pass filter is connected between the first sub line and the second sub line and causes a phase shift to be generated in a passing signal passing therethrough in such a manner that the phase shift monotonically increases within a range from about 0 to about 180 degrees with increasing frequency in the predetermined frequency band.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: July 7, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Ikuo Tamaru
  • Patent number: 9077305
    Abstract: Semiconductor dies and methods are described, such as those including a first capacitive pathway having a first effective series resistance (ESR) and a second capacitive pathway having an adjustable ESR. One such device provides for optimizing the semiconductor die for different operating conditions such as operating frequency. As a result, semiconductor dies can be manufactured in a single configuration for several different operating frequencies, and each die can be tuned to reduce (e.g. minimize) supply noise, such as by varying the ESR or the capacitance of at least one of the pathways.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: July 7, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Timothy M. Hollis, Steven Bodily
  • Publication number: 20150042412
    Abstract: Techniques for efficiently integrating directional coupler circuitry with other circuit elements of an RF front end. In an aspect, one or more inductors of an RF front end filter is incorporated into a first inductor of the directional coupler, and a capacitor is further coupled in parallel with the first inductor. In another aspect, circuitry associated with matching components of the RF front end may further be incorporated into the directional coupler design. Further techniques are provided for coupling directivity tuning elements to a second inductor of the directional coupler to improve the linearity of the coupler over other tuning techniques.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: James Francis Imbornone, Yanjie Sun, Zhenying Luo, Zhenqi Chen, Calogero D. Presti, Xinwei Wang, Dong Zhang
  • Patent number: 8928428
    Abstract: A directional coupler with increased directivity is disclosed. There is an input port, an output port, a coupled port, and a ballasting port. A first transmission element has a first connection to the input port and a second connection to the output port, and a second transmission element has a first connection to the coupled port and a second connection to the ballasting port. A first compensation capacitor is connected to the input port and the coupled port, and a second compensation capacitor is connected to the input port and the ballasting port.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 6, 2015
    Assignee: RFaxis, Inc.
    Inventor: Oleksandr Gorbachov
  • Publication number: 20140306778
    Abstract: A directional coupler with increased directivity and reduced overall footprint area is disclosed. There is an input port, an output port, a coupled port, and a ballasting port. A primary chain of serially connected inductors is connected to the input port and the output port, while a secondary chain of serially connected inductors is connected to the coupled port and the ballasting port. A first compensation capacitor is connected to the input port and the coupled port, and a second compensation capacitor is connected to the input port and the ballasting port.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: RFAXIS, INC.
    Inventor: OLEKSANDR GORBACHOV
  • Publication number: 20140292360
    Abstract: A broadband directional coupler for measuring a power of a forward or returning high-frequency signal on a coaxial line provides a voltage splitter comprising a first resistor, a second resistor and a third resistor. The first connection of the first resistor is connected to an inner conductor of the coaxial line, the second connection of the first resistor and the first connection of the second resistor are connected to a measuring unit. The first connection of the third resistor is connected to an outer conductor of the coaxial line and to the second connection of the second resistor. The second connection of the third resistor is connected to a ground. The third resistor is annular in shape and arranged concentrically to the inner conductor in a plane orientated orthogonally relative to the inner conductor.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 2, 2014
    Inventors: Michael Morgenstern, Dirk Fehse
  • Patent number: 8810333
    Abstract: A multiband coupling circuit including: a number of paths equal to the number of frequency bands, each path having a first terminal and a second terminal; a third terminal and a fourth terminal; a number of distributed couplers equal to the number of paths, all couplers being identical and sized according to the highest frequency band, and each coupler including a first conductive line between first and second ports connected to the first and second terminals of the concerned path, and a second conductive line coupled to the first one between third and fourth ports; a first set of attenuations between the third ports of the couplers and the third terminal of the circuit; and an array of filters between the fourth ports of the coupler and the fourth terminal of the circuit.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: August 19, 2014
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Claire Laporte, Hilal Ezzeddine
  • Patent number: 8773218
    Abstract: Embodiments of circuits, apparatuses, and systems for a quadrature hybrid circuit are disclosed. The quadrature hybrid circuit may include a ladder structure, may act as a combiner or a divider, and may transform a source impedance to a load impedance.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: July 8, 2014
    Assignee: TriQuint Semiconductor, Inc.
    Inventor: Peter V. Wright
  • Publication number: 20140152395
    Abstract: Disclosed is a low phase shift voltage variable attenuator. The low phase shift voltage variable attenuator may include: a first directional coupler including a first input terminal in which a signal is input, a first isolation terminal connected to a ground power source through a termination resistor, a first coupling terminal, and a first through terminal; a second directional coupler including a second input terminal through which an attenuated signal, which is the attenuated input input signal, is output, a second isolation terminal connected to a ground power source through a termination resistor, a second coupling terminal, and a second through terminal; and a signal attenuating unit connected to the first coupling terminal, the first through terminal, the second coupling terminal, and the second through terminal, and configured to attenuate a signal transmitted through the first directional coupler to transmit the attenuated signal to the second directional coupler.
    Type: Application
    Filed: May 16, 2013
    Publication date: June 5, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong Hwan SHIN, Seong Mo MOON, In Bok YOM
  • Patent number: 8638182
    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: March 1, 2005
    Date of Patent: January 28, 2014
    Assignee: CPG Technologies, LLC.
    Inventor: James F. Corum
  • Patent number: 8629734
    Abstract: A system for power smoothing in power distribution and methods are provided. In one embodiment, a power multiplying network is provided that comprises a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplying network is coupled to a power distribution network. The power multiplying network is configured to store power from and supply power to the power distribution network.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: January 14, 2014
    Assignee: CPG Technologies, LLC
    Inventor: James F. Corum
  • Patent number: 8618892
    Abstract: There is provided a communication system including a transmitter and a receiver, each including a communication circuit unit that processes a high-frequency signal for transmitting data, a band-pass filter, and a high frequency coupler, a distributed constant line connecting the high frequency coupler and the band-pass filter of the transmitter, and a distributed constant line connecting the high frequency coupler and the band-pass filter of the receiver, wherein an electrical length of the distributed constant line of the transmitter is different from an electrical length of the distributed constant line of the receiver.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 31, 2013
    Assignee: Sony Corporation
    Inventor: Sachio Iida
  • Patent number: 8611845
    Abstract: This invention describes a method by which the output power of a circuit or system at any point can be efficiently and cost effectively sampled in a simple and broadband fashion for processing in a closed loop system for applications such as power level control in very broadband circuits. A divider circuit consisting of a selection of passive lumped elements is used to create a very broadband means of sampling the RF power level at any point in a transmission line. Unlike prior art schemes of this nature, this circuit does not rely upon extremely accurate element values and minimization of parasitic reactances. Used in conjunction with a balanced detector-logarithmic or other amplifier combination this invention result in a very broadband low cost simplified realization of the traditional costly bandwidth limited directional coupler-detector combination.
    Type: Grant
    Filed: February 11, 2012
    Date of Patent: December 17, 2013
    Inventor: Anand Ganesh Basawapatna
  • Publication number: 20130307635
    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: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicant: Black Sand Technologies, Inc.
    Inventor: Black Sand Technologies, Inc.
  • Patent number: 8587387
    Abstract: An RF directional coupler circuit assembly for matching high frequency cable TV apparatus includes a cover body, and a printed circuit board. The cover body includes a space. The space includes a bottom surface. An RF directional coupler circuit is arranged on the printed circuit board. A 0.01 mm˜2 mm gap is formed between the RF directional coupler circuit and the bottom surface when the printed circuit board is deposited in the space. The distance between the printed circuit board and the cover body is shorten because of the gap, so that the reflections of the high frequency signals and the signal fading are decreasing to achieve matching high frequency impedance characteristics.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: November 19, 2013
    Assignee: Cable Vision Electronics Co., Ltd.
    Inventor: Chien Chung Lee
  • Patent number: 8536956
    Abstract: In a directional coupler, sub-lines or main lines are electromagnetically coupled to each other to degrade isolation characteristics. A capacitor is located between the sub-lines or between the main lines to cause the isolation characteristics to have poles in order to improve the isolation characteristics of the directional coupler.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 17, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ikuo Tamaru, Hirokazu Yazaki, Hiroshi Masuda
  • Patent number: 8525614
    Abstract: According to an embodiment of the invention, a coupler has a first line that includes a coiled main line and a second line that includes a coiled secondary line arranged to oppose the main line via an insulating layer. The coupler also has a plurality of vias that connect the separate portions of the first line arranged in the different layers and connect the separate portions of the second line arranged in the different layers, and a plurality of terminals each connected to an end of the first and second lines. The vias include an extension via connected to the main line or the secondary line that extends through the insulating layer, and the extension via wires the first line and the second line to the same side of the insulating layer.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: September 3, 2013
    Assignee: TDK Corporation
    Inventors: Toshiyasu Fujiwara, Takeshi Suga
  • Publication number: 20130194054
    Abstract: An output circuit with an integrated directional coupler and impedance matching circuit is disclosed. In an exemplary design, an apparatus includes a switchplexer and an output circuit. The switchplexer is coupled to at least one power amplifier. The output circuit is coupled to the switchplexer and a load (e.g., an antenna) and includes a directional coupler and an impedance matching circuit sharing at least one inductor. The output circuit performs impedance matching for the load. The output circuit also acts as a directional coupler and provides an input radio frequency (RF) signal as an output RF signal and further couples a portion of the input RF signal as a coupled RF signal. Reusing the at least one inductor for both the directional coupler and the impedance matching circuit may reduce circuitry, size, and cost of the wireless device and may also improve performance.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Applicant: QUALCOMM Incorporated
    Inventor: Calogero D. Presti
  • Patent number: 8476987
    Abstract: A distributed-line directional coupler including: a first conductive line between first and second ports intended to convey a signal to be transmitted; and a second conductive line, coupled to the first one, between third and fourth ports, the second line being interrupted approximately at its middle, the two intermediary ends being connected to attenuators.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: July 2, 2013
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: François Dupont, Hilal Ezzeddine, Sylvain Charley