Having Lumped Parameters Or Impedances Patents (Class 333/118)
  • Patent number: 11589000
    Abstract: A Multimedia over Coax Alliance (MoCA) gateway splitter that includes a directional coupler (including a first transmission path and a second transmission path), a gateway port and a cable television (CATV) input port each electrically connected to the first transmission path, and a MoCA port electrically connected to the second transmission path such that the MoCA port is isolated from the CATV input port and coupled to the gateway port. Multiple MoCA ports may be electrically connected to the second transmission path (e.g., via a resistive splitter). The second transmission path may be electrically connected to ground. The MoCA gateway splitter may include multiple (e.g., two or three) gateway ports, each electrically connected to the CATV input port via a directional coupler (and, e.g., one or more hybrid splitters). In those embodiments, each directional coupler may be electrically connected to the MoCA port(s), for example, via a common microstrip node.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: February 21, 2023
    Assignee: TIMES FIBER COMMUNICATIONS, INC.
    Inventors: Brian J. Shapson, Hai Qun Hong, Robert L. Romerein, Rong Hui Li
  • Patent number: 11394359
    Abstract: A filter structure includes a capacitive device and an inductive device. The capacitive device includes a ground plane in a first metal layer of an integrated circuit (IC) package, a plate in a second metal layer of the IC package, and a dielectric layer between the ground plane and the plate. The inductive device includes first and second conductive paths in a third metal layer of the IC package, each of the first and second conductive paths is electrically connected to the plate and has a width w, the first and second conductive paths are separated by a spacing s, and a ratio s/w has a value ranging from 1 to 2.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: July 19, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Ming Hsien Tsai
  • Patent number: 10991549
    Abstract: An antenna includes a first waveguide configured to guide VHF radio frequency waves, and a second waveguide configured to guide the VHF radio frequency waves supplied from the first waveguide, the second waveguide having a pair of metal reflective plates therein facing each other across a longitudinal distance along the second waveguide, wherein a tip end of the first waveguide is coupled to the second waveguide at a sideways point thereof between the metal reflective plates, and wherein a distance between the metal reflective plates is ?g/4+?g·n/2, ?g being a wavelength of the VHF radio frequency waves in tube, and n being an integer greater than or equal to zero.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 27, 2021
    Assignee: Tokyo Electron Limited
    Inventors: Taro Ikeda, Toshihiko Iwao
  • Patent number: 10847900
    Abstract: The present disclosure provides the antenna array and the radar device including at least one first antenna arranged in one direction; at least one second antenna spaced apart from the first antenna; at least one shared antenna arranged between the first antenna and the second antenna; a first input-output terminal connected to the first antenna; a second input-output terminal connected to the second antenna; and a connector including a first port connected to the first antenna, a second port connected to the second antenna, a third port connected to the shared antenna, and a connecting portion connected to the first port, the second port and the third port; wherein a signal input to one of the first port and the second port is transmitted to the other port through a first path and a second path, and wherein the signal passed through the first path and the second path are matched at the other port.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 24, 2020
    Assignee: MANDO CORPORATION
    Inventors: Sung Joon Heo, Su Han Kim
  • Patent number: 10750029
    Abstract: A splitter/combiner configured to split and combine Plain Old Telephone Service (POTS) signals and data service signals. The splitter/combiner comprises a line terminal configured to receive wires of a local loop connection to a Central Office of a communications network; a phone terminal configured to connect to telephone equipment at a customer premise; a data terminal configured to connect to a modem at a customer premise; a POTS line low pass filter connected between the line terminal and the phone terminal, the POTS line low pass filter configured to attenuate frequencies above 25 kHz and including a POTS line side transformer; a surge arrestor connected between the POTS line side transformer and the phone terminal; and a data line transformer configured as a differential mode choke connected between the line terminal and the data terminal.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: August 18, 2020
    Assignee: COMTEST NETWORKS INC.
    Inventors: Savo Todoric, Russell D Adams
  • Patent number: 10079587
    Abstract: A phase shifter includes a transformer connected between a first port and a second port and including a first coil and a second coil that is magnetically coupled to the first coil, the transformer including a parasitic inductance component; and an impedance adjustment circuit including a reactance element that suppresses a deviation in impedance due to the parasitic inductance component of the transformer. A coupling coefficient between the first coil and the second coil of the transformer and a value of the reactance element of the impedance adjustment circuit are determined such that a phase-shift amount changes in accordance with a frequency band.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: September 18, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kenichi Ishizuka, Hiroshi Nishida
  • Patent number: 9702913
    Abstract: A plasma processing apparatus (1) includes a processing container (2) and a microwave introduction device (5) having a plurality of microwave introduction modules (61). A microwave is introduced for each of the plurality of microwave introduction modules (61), and S-parameters for each of combinations of the plurality of microwave introduction modules (61) are obtained based on the introduced microwave and a reflected microwave reflected from the processing container (2) into the plurality of microwave introduction modules (61).
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: July 11, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Taro Ikeda, Yutaka Fujino, Hikaru Adachi, Hiroyuki Miyashita, Yuki Osada, Nobuhiko Yamamoto
  • Patent number: 9633349
    Abstract: An article of manufacture provides a compact assembly of power amplifiers in series and in parallel. A plurality of radial power splitters and radial power combiners couple surface mounted power amplifier dice into a power platter. Thermal conduction probes chained through the power platters remove heat from the vicinity of the power amplifier dice. Surface mounted power amplifier dice may be enclosed within a matched pair of power platters. Stackable power platters may be assembled to form a 3D power amplifier pile.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 25, 2017
    Assignee: Tubis Technology Inc.
    Inventor: Jin-Fu Yeh
  • Patent number: 9466868
    Abstract: A reconfigurable branch line coupler and methods of designing and reconfiguring the branch line coupler are disclosed. The reconfigurable branch line coupler includes a plurality of transmission lines, each of which comprises a phase shifter. The reconfigurable branch line coupler further includes an input port, which is split into two quadrature signals providing a second and third port between adjacent of the plurality of transmission lines, with a fourth port isolated from the input port at a center frequency.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 11, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Hanyi Ding, Alberto Valdes Garcia, Wayne H. Woods, Jr.
  • Patent number: 9202619
    Abstract: A coiled power device including a magnetic core including a first leg and a second leg which are parallel to each other, the device including a first coil and a second coil to generate mutual inductance between the coils, the first coil including a first winding of conducting wires around the first leg and a second winding of conducting wires around the second leg, the second coil including at least a third winding of conducting wires around the second leg and a fourth winding of conducting wires around the first leg, the first winding and the fourth winding covering the same portion of the first leg to limit leakage inductance of the coiled power device.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: December 1, 2015
    Assignee: LABINAL POWER SYSTEMS
    Inventors: Herve Sorel, Frederic Bleuzen
  • Patent number: 9118216
    Abstract: In various embodiments, power multipliers and associated methods are provided that employ parametric excitation. In one embodiment, a ring power multiplier is provided that has a ring. A parametric reactance is associated with the ring that negates at least a portion of a physical resistance of the ring.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 25, 2015
    Assignee: CPG Technologies, LLC
    Inventor: James F. Corum
  • Patent number: 9088059
    Abstract: Methods for establishing metamaterial transmission line (MTM TL's) for a phased array antenna can include the initial step of defining a defining a Composite Right/Left Hand (CRLH) CRLH unit cell architecture. A family of unit cells using CRLH TL microstrip architecture can be constructed so that each of the CRLH unit cells have the same physical length, but different cell phases and cell phase slopes. To do this, the stub length of each CRLH unit cell can be varied. Once the family of CRLH unit cells is constructed, different numbers of different CRLH unit cells from the family can be combined with different numbers of conventional right hand TL's, which results in TL's for a phased array antenna that each have the same overall phase and overall phase slope not only at the design frequency f0, but over the entire design frequency band for the antenna.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: July 21, 2015
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Justin A. Church, John Meloling, John D. Rockway
  • Publication number: 20150035604
    Abstract: The embodiments described herein can provide improved signal feeding between hybrid couplers and associated transistors. As such, these embodiments can improve the performance of amplifiers and other such RF devices that utilize these components. In one embodiment a device includes a distribution network and a compensation resonator. The distribution network is configured to output a signal through a relatively wide output feedline. This relatively wide output feedline provides distributed signal feeding that can improve signal distribution and performance. The output feedline is coupled to the compensation resonator. In general, the compensation resonator is configured to resonate with the distribution network at the frequency band of the signal. Thus, the distribution network and compensation resonator together can provide improved signal distribution while maintaining performance at the frequencies of interest.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Damon G. HOLMES, Jeffrey K. JONES, Joseph STAUDINGER, Michael E. WATTS
  • 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: 8704611
    Abstract: A hybrid filter may include sum, low-pass, high-pass, and intermediate nodes. A terminating impedance may couple the intermediate node to a circuit ground. A first low-pass network may couple the sum node to the low-pass node, and a first high-pass network may couple the sum node to the high-pass node. A second low-pass network may couple the high-pass node to the intermediate node. A second high-pass network may couple the low-pass node to the intermediate node. The second high-pass network may include the series connection of a first capacitor, a coupling network, and a second capacitor. The coupling network may include two coupling sections each with planar broadside-coupled first, second, and third conductor elements separated by dielectric layers. The first and third conductor elements in each section may be connected electrically in parallel.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 22, 2014
    Assignee: Werlatone, Inc.
    Inventors: Allen F. Podell, Andrew Kearns, Ky-Hien Do
  • Patent number: 8659367
    Abstract: Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: February 25, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8416033
    Abstract: A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |?1|, |?2|?270°. The coupler can be used in many applications, for example as a mode decoupling network in a dual-band front-end MIMO system. The inclusion of a CRLH delay line is also described which alters the phase relationship of the signals and is particularly well suited for extending pattern diversity in response to frequency.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: April 9, 2013
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Pei-Ling Chi, Cheng-Jung Lee
  • Patent number: 8405469
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 26, 2013
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 8334732
    Abstract: Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: December 18, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Publication number: 20120200370
    Abstract: Embodiments of circuits, apparatuses, and systems for a quadrature hybrid circuit are disclosed. Other embodiments may be described and claimed.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 9, 2012
    Applicant: TRIQUINT SEMICONDUCTOR, INC.
    Inventor: Peter V. Wright
  • Publication number: 20120139661
    Abstract: A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |?1|, |?2|?270°. The coupler can be used in many applications, for example as a mode decoupling network in a dual-band front-end MIMO system. The inclusion of a CRLH delay line is also described which alters the phase relationship of the signals and is particularly well suited for extending pattern diversity in response to frequency.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 7, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Tatsuo Itoh, Pei-Ling Chi, Cheng-Jung Lee
  • Publication number: 20120133455
    Abstract: Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8072289
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: December 6, 2011
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 8072290
    Abstract: Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: December 6, 2011
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8072291
    Abstract: A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |?1|, |?2|?270°. The coupler can be used in many applications, for example as a mode decoupling network in a dual-band front-end MIMO system. The inclusion of a CRLH delay line is also described which alters the phase relationship of the signals and is particularly well suited for extending pattern diversity in response to frequency.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: December 6, 2011
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Pei-Ling Chi, Cheng-Jung Lee
  • Publication number: 20110018651
    Abstract: A power combiner 100 comprises a tubular main container 1, a plurality of power introduction ports 2 provided on the lateral surface of the main container 1 and introducing power as electromagnetic waves, a plurality of feeding antennas 6 provided, respectively, on plurality of power introduction ports 2, a combiner part 10 performing spatial combining of electromagnetic waves radiated from the plurality of feeding antennas 6 into main container 1, and an output port 11 for outputting electromagnetic waves combined at combiner part 10. Each feeding antenna 6 consists of an antenna main body 23 having a first pole 21 to which electromagnetic waves are supplied from a power introduction port 2 and a second pole 22 for radiating the electromagnetic waves thus supplied, and a reflection part 24 so provided as to project sideways from antenna main body 23 and reflecting electromagnetic waves.
    Type: Application
    Filed: March 9, 2009
    Publication date: January 27, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Taro Ikeda, Shigeru Kasai
  • Patent number: 7696841
    Abstract: A power amplifier includes a quadrature hybrid and input impedance matching network. The power amplifier also includes at least one amplifier that includes an output electrode, and a quadrature hybrid and output impedance matching network. The quadrature hybrid and input impedance matching network exhibits a low pass frequency response.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: April 13, 2010
    Assignee: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
    Inventor: Pin-Fan Chen
  • Patent number: 7675384
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: March 9, 2010
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 7667556
    Abstract: A combiner/splitter with distributed lines including a first line formed of a first planar winding in a first conductive level and of a second planar winding in a second conductive level; a second line formed of a third planar winding interdigited with the first winding in the first level, and of a fourth planar winding interdigited with the second winding in the second level; a first capacitive element connecting the external ends of the first and third windings; and a second capacitive element connecting the external ends of the second and fourth windings.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: February 23, 2010
    Assignee: STMicroelectronics S.A.
    Inventor: Hilal Ezzeddine
  • Patent number: 7667555
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: February 23, 2010
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 7646261
    Abstract: The present invention is directed to a coupler structure that includes a first port, a second port, a third port, and a fourth port. L first transmission line layers are disposed in the structure. Each first transmission line layer includes a first transmission line conforming to a predetermined geometric configuration. The first transmission line is disposed on a first dielectric material between the first port and the second port. L is an integer. M second transmission line layers are disposed in alternating layers with the L first transmission line layers to form a total of N transmission line layers within the structure. M and N are integers and N is greater than or equal to three. Each second transmission line layer includes a second transmission line substantially conforming to the predetermined geometric configuration. The second transmission line is disposed on a second dielectric material between the third port and the fourth port.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: January 12, 2010
    Assignee: Anaren, Inc.
    Inventor: Niels H. Kirkeby
  • Patent number: 7623006
    Abstract: A distributed combiner/splitter having a first line formed of a first planar winding in a first conductive level and of a second planar winding in a second conductive level, and a second line formed of a third planar winding interdigited with the first winding in the first level, and of a fourth planar winding interdigited with the second winding in the second level, the windings having an increasing width from the outside to the inside.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: November 24, 2009
    Assignee: STMicroelectronics S.A.
    Inventors: Hilal Ezzeddine, Philippe Leduc, François Dupont
  • Patent number: 7619495
    Abstract: The bandpass filter comprises transmission line comprising a conductor strip (2), and, in said transmission line, at least one bandpass filter cell, comprising at least one split-rings resonator (6, 7), inductive element (4, 41) and capacitive element (3). The bandpass filter has a frequency response in which at least one passband can be identified. The conductor strip, split-rings resonator(s), inductive element(s) and capacitive element(s) are dimensioned and arranged so that the bandpass filter, for frequencies within said passband, behaves as a left-handed transmission line for at least one range of frequencies within said passband, and as a right-handed transmission line for at least another range of frequencies within said passband, thus providing for a large bandwidth. The invention also relates to an electronic device including the filter, and to a method of producing it.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: November 17, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Jordi Bonache Albacete, Juan Jose Garcia Garcia, Marta Gil Barba, Juan Fernando Martin Antolin, Josep Ignasi Cairo Molins, Ignacio Gil Galf
  • Patent number: 7605672
    Abstract: The present invention is directed to a balun that includes a first coupler structure having a first port of a balanced port pair and an unbalanced port. A second coupler structure includes a second port of the balanced port pair. The second coupler port structure being connected to the first coupler structure such that the second port of the balanced port pair is DC isolated from the first port of the balanced port pair without decoupling components.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 20, 2009
    Assignee: Anaren, Inc.
    Inventor: Niels H. Kirkeby
  • Patent number: 7592881
    Abstract: A circuit for broadband amplification is provided. The circuit includes an input HF_IN and an output HF_OUT, a first 90° hybrid coupler being connected to the input HF_IN of the circuit and a second 90° hybrid coupler being connected to the output HF_OUT of the circuit, and two amplifier stages being connected in parallel between the first and the second 90° hybrid coupler, the 90° hybrid couplers being hybrid couplers having an operating range of 1/n octaves between a lower frequency value and an upper frequency value, n?N\{0}, i.e., n is an element of the natural positive whole numbers in such a way that the upper frequency value is greater than the lower frequency range and simultaneously less than two times the value of the lower frequency range, and the amplifier stages being based on transistors having a III-nitride, or SiC, or diamond basis.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: September 22, 2009
    Assignee: EADS Deutschland GmbH
    Inventor: Andreas Salomon
  • Publication number: 20090231058
    Abstract: Provided is a band-pass filter having a small phase change in a pass band and a steep frequency characteristic. The band-pass filter includes: a four-terminal pair 90-degree hybrid circuit (10) for distributing power into two directions with a phase difference of 90 degrees; and a band elimination filter circuit including a plurality of unit circuits (15) and (16) connected to each other, each of the plurality of unit circuits including a series circuit of a coil and a capacitor and a parallel circuit of a coil and a capacitor, which are connected with each other, input terminals of the plurality of unit circuits being connected with coupling terminals (13) and (14) of the hybrid circuit (10) and output terminals of the plurality of unit circuits being terminated with resistors having impedance values equal to an output impedance.
    Type: Application
    Filed: July 18, 2006
    Publication date: September 17, 2009
    Inventors: Tamotsu Nishino, Moriyasu Miyazaki, Hiromitsu Uchida
  • Patent number: 7576626
    Abstract: Very small size true directional couplers have a coupling coefficient that is independent on load VSWR. The coupler uses coupled inductors with a compensation circuit including a resistor and a capacitor, or just a capacitor. Wideband operation is suitable for many portable applications such as power detection and control for GSM, DCS-PCS, CDMA/WCDMA, Bluetooth, and WLAN systems.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: August 18, 2009
    Assignee: STMicroelectronics Ltd.
    Inventor: Oleksandr Gorbachov
  • Patent number: 7538635
    Abstract: Four variable reactance means are connected, respectively, to the four ports of a quadrature hybrid circuit which is composed of four ring-linked two-port circuits each composed of a transmission line or multiple lumped reactance elements, so that by changing the reactance values of the four variable reactance means, operating frequency of the quadrature hybrid circuit can be selectively changed.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 26, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi
  • Publication number: 20090079513
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Application
    Filed: May 16, 2008
    Publication date: March 26, 2009
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 7508283
    Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: March 24, 2009
    Assignee: The Regents of the University of California
    Inventors: Tatsuo Itoh, Christophe Caloz, I-Hsiang Lin, Hiroshi Okabe
  • Patent number: 7446626
    Abstract: Very small size true directional couplers have a coupling coefficient that is independent on load VSWR. The coupler uses coupled inductors with a compensation circuit including a resistor and a capacitor, or just a capacitor. Wideband operation is suitable for many portable applications such as power detection and control for GSM, DCS-PCS, CDMA/WCDMA, Bluetooth, and WLAN systems.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: November 4, 2008
    Assignee: STMicroelectronics Ltd.
    Inventor: Oleksandr Gorbachov
  • Publication number: 20080180190
    Abstract: A full range phase shifter circuit includes a power divider, a hybrid coupler, a differential phase shifter, a power combiner and switched attenuators. The power divider, hybrid coupler, differential phase shifter and power combiner comprise lumped elements and can be integrated in semiconductor processes, decreasing the circuit size of the full range phase shifter.
    Type: Application
    Filed: May 17, 2007
    Publication date: July 31, 2008
    Inventors: Chia-Yu Chan, Jean-Fu Kiang
  • Patent number: 7323950
    Abstract: An electrical processing network including a first set of ports and a second set of ports electrically coupled to the first set of ports. The first set of ports are for a first set of signals with approximately 0° and 180° relative phase. The second set of ports are for a second set of signals with approximately 0°, 90°, 180° and 270° relative phase.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: January 29, 2008
    Inventor: Lowell R. Hoover
  • Patent number: 7084717
    Abstract: In a quadrature hybrid circuit which has first and second two-port circuits 11 and 12 inserted between I/O ports P1 and P2 and between I/O ports P4 and P3, respectively, and third and fourth two-port circuits inserted between I/O ports P1 and P4 and between I/O ports P2 and P3, respectively, and which is configured so that under the condition that the I/O ports P1 to P4 are matched, a high-frequency signal fed via the I/O port P1 is divided between the I/O ports P2 and P3 and the divided two signals are output 90° out of phase with each other but no signal is provided to the I/O ports P4, there are provided SPST switches 7 and 8 responsive to external control to control electromagnetic connections or coupling across a plane of symmetry 5 of the quadrature hybrid circuit passing through intermediate points of symmetry 23 and 24 of the third and fourth two-port circuits 21 and 22.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: August 1, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hiroshi Okazaki, Tetsuo Hirota, Atsushi Fukuda
  • Patent number: 7068734
    Abstract: A passive coupling structure constructed using printed circuit board traces is used to separate the low and high frequency components of an incoming digital signal. The low and high frequency components of the signal are sent to separate receivers on an integrated circuit. The low frequency receiver may be a conventional level based receiver. The high frequency receiver is a Schmitt-trigger with hysteresis around a DC level or two comparators with separate reference voltages. The outputs of these receivers are combined to produce a receiver output that has increased reliability and noise immunity.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: June 27, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Karl Joseph Bois, David W. Quint, Randy K. Rannow
  • Patent number: 7042310
    Abstract: The invention relates to a high-pass branch (7) of a frequency separating filter for ADSL systems comprising inductive components (11, 14) which dispose of magnet cores made of a soft magnetic amorphous or nanocrystalline. As a result, frequency separating filters are provided which comprise small structural shapes and which have especially beneficial properties in the relevant frequency and temperature range.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 9, 2006
    Assignee: Vacuumschmelze GmbH
    Inventors: Joerg Petzold, Johannes Beichler, Dirk Heumann
  • Patent number: 7005726
    Abstract: A semiconductor device with integrated circuits includes superimposed layers provided at different levels on a substrate, and including a metal strip (3) formed in a reference layer and through which an electric current passes, a metal ground plane (4) formed in a layer situated at a level lower than the reference layer and having a slit (5) which lies below the strip while running alongside it, an electrostatic shield (6) formed in a layer located at a level lower than the ground plane and comprising a multiplicity of spaced out bands (7), made of an electrically-conducting material, that extends across the slit, and conducting junctions (4a, 4b) making it possible to electrically connect the ends of each band to the parts of the ground plane situated on either side of its slit.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 28, 2006
    Assignee: STMicroelectronics SA
    Inventor: Jean-Francois Carpentier
  • Patent number: 6965280
    Abstract: A three way power splitter that has a small package size. The three way power splitter includes a multi-layered low temperature co-fired ceramic substrate. An input transformer and three output transformers are attached to the top of the substrate. The transformers have wires that are attached to terminals on the top of the substrate. Three resistors are located on the top surface of the substrate under the transformers. A capacitor is located within the substrate. Terminals are also located on the bottom of the substrate. Several conductive vias extend through the substrate and connect the resistors, the capacitor and the terminals.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: November 15, 2005
    Inventor: Lu Chen
  • Patent number: 6963256
    Abstract: A low cost power splitter that has a small size and can be used with automated surface mount manufacturing equipment. The power splitter includes a case having a cavity and a lead mounting surface. Leads are secured to the lead mounting surface. A substrate is mounted in the cavity. The substrate has top surface, a bottom surface and inner layers. A resistor is formed on the top surface. A capacitor is formed on the inner layers. Terminals are located on the top surface and vias extend through the substrate. A pair of transformers are attached to the bottom surface and to the case by an adhesive. The transformers have windings that are connected to the terminals. Connector wires are connected between the terminals and the leads.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: November 8, 2005
    Inventors: Radhakrishnaiah Setty, Chen Lu
  • Patent number: 6963255
    Abstract: A power splitter that has a small package size and repeatable electrical characteristics. The power splitter includes a low temperature co-fired ceramic (LTCC) substrate with several layers. Electrical components such as resistors and capacitors are integrated within the LTCC substrate. A transformer is attached to the upper surface of the LTCC substrate and is electrically connected to the resistors and capacitors. The transformer provides impedance matching and dividing functions. The LTCC substrate has electrically conductive vias extending therethrough. The vias are used to connect the power splitter to an external printed circuit board. The vias are also used to make electrical connections between the layers of the LTCC substrate.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: November 8, 2005
    Inventors: Wei Ping Zheng, Igor Lumelskiy, Radha Setty