US3593208A - Microwave quadrature coupler having lumped-element capacitors - Google Patents

Microwave quadrature coupler having lumped-element capacitors Download PDF

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Publication number
US3593208A
US3593208A US807827A US3593208DA US3593208A US 3593208 A US3593208 A US 3593208A US 807827 A US807827 A US 807827A US 3593208D A US3593208D A US 3593208DA US 3593208 A US3593208 A US 3593208A
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sections
transmission line
output ports
capacitors
port
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Expired - Lifetime
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US807827A
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John I Smith
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AT&T Corp
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Bell Telephone Laboratories Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/185—Edge coupled lines

Definitions

  • This invention comprises a four-port microwave quadrature coupler having its entire circuit structure composed of thin conductive film on a substrate of dielectric material.
  • a portion of the circuit structure comprises a plurality of conductive strips forming sections of transmission line with distributed parameters. each section having a physical length substantially less than a quarter wavelength at the midband frequency.
  • Other portions of the thin film circuit structure comprises lumped capacitors coplanar with and connected at the ends of the sections of transmission line.
  • the sections of transmission line cooperate with the lumped capacitors to provide the necessary phase shifts and impedance transformations between the sections to act as a conventional four-port quadrature coupler. Signals may be applied to any one port and two outputs in phase quadrature can be obtained with a 3 db. power split at the two opposite ports while the adjacent conjugate port is isolated from the input port.
  • FIG. 4 is a schematic representation of the circuits of FIG. 3;
  • FIG. 4 is a schematic representation of the circuits of FIG. 3, the corresponding parts bearing the same reference nu' merals.
  • the lumped capacitors 33 and 34 are here given a conventional representation.
  • FIG, 5 is a schematic diagram of a proximity coupler of the same type shown in FIG. 3 but with three lumped capacitors 33, 34 and 39 periodically spaced along the coupled transmission lines 3] and 32. The operation is essentially the same, however, as previously described for FIG. 3,
  • said lumped capacitors comprise six fixed capacitors each having a grounded end and an ungrounded end, said ungrounded ends being connected, respectively, to the ends of said three branch lines.
  • a microwave quadrature coupler having an input port, an isolated port and two output ports, said coupler comprising an insulating substrate, a plurality of thin conductive strips supported coplanar on said substrate, said strips comprising sections of transmission line having distributed parameters, each of said sections of said transmission line having a length less than a quarter wavelength at a midband frequency, and said strips further comprising lumped capacitors coupled to the ends of said line sections, said sections of transmission line comprising a first series circuit comprising two of said sections of said transmission line connected between said input port and one of said output ports, a second series circuit comprising two of said sections of said transmission line connected between said isolated port and the other of said output ports, and first, second and third branch lines, said first branch line connected between the ends of said first and second series cir cuits at the input and isolated ports, respectivel said second branch line connected between the unctions ormed by the two line lengths in said first and second series circuits, said third branch line connected between the ends of said first and second series circuits at the two output ports, respectively
  • a microwave quadrature coupler comprising:
  • each of said capacitors comprising thin conductive strips supported coplanar on said substrate.

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  • Control Of Motors That Do Not Use Commutators (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Microwave Amplifiers (AREA)
US807827A 1969-03-17 1969-03-17 Microwave quadrature coupler having lumped-element capacitors Expired - Lifetime US3593208A (en)

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US80782769A 1969-03-17 1969-03-17

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US3593208A true US3593208A (en) 1971-07-13

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US807827A Expired - Lifetime US3593208A (en) 1969-03-17 1969-03-17 Microwave quadrature coupler having lumped-element capacitors

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US (1) US3593208A (enrdf_load_stackoverflow)
JP (1) JPS4829174B1 (enrdf_load_stackoverflow)
DE (1) DE1962648A1 (enrdf_load_stackoverflow)
FR (1) FR2033700A5 (enrdf_load_stackoverflow)
GB (1) GB1288943A (enrdf_load_stackoverflow)

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736536A (en) * 1971-04-14 1973-05-29 Bendix Corp Microwave filter
US3764938A (en) * 1972-08-28 1973-10-09 Bell Telephone Labor Inc Resonance suppression in interdigital capacitors useful as dc bias breaks in diode oscillator circuits
US4011528A (en) * 1975-07-14 1977-03-08 Stanford Research Institute Semi-lumped element coupler
US4027254A (en) * 1975-02-11 1977-05-31 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Directional coupler having interdigital comb electrodes
US4127831A (en) * 1977-02-07 1978-11-28 Riblet Gordon P Branch line directional coupler having an impedance matching network connected to a port
US4216446A (en) * 1978-08-28 1980-08-05 Motorola, Inc. Quarter wave microstrip directional coupler having improved directivity
US4224584A (en) * 1978-03-14 1980-09-23 Thomson-Csf Directional microwave coupler
US4375054A (en) * 1981-02-04 1983-02-22 Rockwell International Corporation Suspended substrate-3 dB microwave quadrature coupler
US4376921A (en) * 1981-04-28 1983-03-15 Westinghouse Electric Corp. Microwave coupler with high isolation and high directivity
US4433313A (en) * 1980-09-12 1984-02-21 Societe D'etude Du Radant Apparatus for microwave directional coupling between a waveguide and a stripline
US4482873A (en) * 1982-09-16 1984-11-13 Rockwell International Corporation Printed hybrid quadrature 3 dB signal coupler apparatus
US4777458A (en) * 1985-04-02 1988-10-11 Gte Telecomunicazioni S.P.A. Thin film power coupler
JPH04505532A (ja) * 1989-06-02 1992-09-24 モトローラ・インコーポレーテッド 容量的に補償されたマイクロストリップ方向性結合器
US5159298A (en) * 1991-01-29 1992-10-27 Motorola, Inc. Microstrip directional coupler with single element compensation
EP0518423A1 (en) * 1991-06-11 1992-12-16 FOR.E.M. S.p.A. Microstrip coupler with maximal directivity
AU644298B2 (en) * 1991-07-11 1993-12-02 Siemens Telecomunicazioni S.P.A. Microwave hybrid directional coupler with concentrated constants and quadrature outputs
US5444600A (en) * 1992-12-03 1995-08-22 Linear Technology Corporation Lead frame capacitor and capacitively-coupled isolator circuit using the same
US5469129A (en) * 1994-08-29 1995-11-21 Motorola, Inc. Impedance transforming three-port power divider/combiner using lumped elements
US5748056A (en) * 1996-10-02 1998-05-05 Itt Industries, Inc. Compact 90° monolithic GaAs coupler for wireless applications
US5825260A (en) * 1996-02-15 1998-10-20 Daimler-Benz Aerospace Ag Directional coupler for the high-frequency range
WO2001076003A1 (es) * 2000-04-04 2001-10-11 Instituto De Astrofisica De Canarias Estructura de cambio de fase de 180° en microondas de banda ancha
WO2002069440A1 (en) * 2001-02-28 2002-09-06 Nokia Corporation Coupling device using buried capacitors in multilayered substrate
US20040113716A1 (en) * 2002-12-06 2004-06-17 Ezzeddine Hilal Directional coupler
US6759922B2 (en) * 2002-05-20 2004-07-06 Anadigics, Inc. High directivity multi-band coupled-line coupler for RF power amplifier
WO2006105847A1 (de) * 2005-04-07 2006-10-12 Kathrein-Werke Kg HOCHFREQUENZKOPPLER ODER LEISTUNGSTEILER, INSBESONDERE SCHMALBANDIGER UND/ODER 3dB-KOPPLER ODER LEISTUNGSTEILER
US20080224797A1 (en) * 2007-03-15 2008-09-18 Miron Catoiu Rf re-entrant combiner
WO2009105020A1 (en) 2008-02-22 2009-08-27 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for symbol detection via reduced complexity sequence estimation processing
US20100001810A1 (en) * 2008-07-01 2010-01-07 Stmicroelectronics (Tours) Sas Integrated directional coupler
US20100225416A1 (en) * 2009-02-10 2010-09-09 Ingalls Mark W Multi-Section Velocity Compensated Microstrip Directional Coupler
US20110052208A1 (en) * 2009-08-31 2011-03-03 Kabushiki Kaisha Toshiba Optoelectronic wiring film and optoelectronic wiring module
WO2011036652A2 (en) 2009-09-28 2011-03-31 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks
WO2011067696A2 (en) 2009-12-01 2011-06-09 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks using a decoder
WO2011067716A2 (en) 2009-12-01 2011-06-09 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for efficient amld matrix computations
WO2011117762A2 (en) 2010-03-23 2011-09-29 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks using a decoder
US20120075042A1 (en) * 2009-12-26 2012-03-29 Huawei Technologies Co., Ltd. Apparatus for improving transmission bandwidth
US8461938B2 (en) * 2010-10-29 2013-06-11 Freescale Semiconductor, Inc. Directional couplers for use in electronic devices, and methods of use thereof
US20130285763A1 (en) * 2012-02-07 2013-10-31 Rf Micro Devices, Inc. Hybrid coupler
TWI484750B (enrdf_load_stackoverflow) * 2012-07-06 2015-05-11
US9042275B2 (en) 2012-02-07 2015-05-26 Rf Micro Devices, Inc. Tunable duplexer architecture
US9048805B2 (en) 2011-10-04 2015-06-02 Rf Micro Devices, Inc. Tunable duplexer architecture
US20170179565A1 (en) * 2015-12-16 2017-06-22 Alcatel-Lucent Canada Inc. Microstrip Line Directional Coupler
TWI640123B (zh) * 2016-07-01 2018-11-01 新加坡商雲網科技新加坡有限公司 分支線耦合器
US10735045B2 (en) 2018-04-23 2020-08-04 Qorvo Us, Inc. Diplexer circuit
US11133566B2 (en) * 2018-09-18 2021-09-28 Kabushiki Kaisha Toshiba Branch-line directional coupler and power amplifier device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778691C3 (de) * 1968-05-24 1978-07-13 Wilhelm 7067 Pluederhausen Bahmueller Zusammenklappbare Mehrzweckleiter
DE2006846C3 (de) * 1970-02-14 1983-12-22 Hoffmann, Helmut Zusammenklappbare Mehrzweckleiter
DE2052584C3 (de) * 1970-10-27 1984-09-27 Hoffmann, Helmut Zusammenklappbare Mehrzweckleiter
DE2754755C2 (de) * 1977-12-08 1986-10-02 Wilhelm Bahmüller, Maschinenbau Präzisionswerkzeuge GmbH, 7067 Plüderhausen Zusammenklappbare Mehrzweckleiter
GB2110882B (en) * 1981-12-02 1985-09-25 Marconi Co Ltd Microwave coupler devices
EP2238644A1 (en) * 2007-12-21 2010-10-13 BAE Systems PLC Microwave coupler

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2883647A (en) * 1952-11-15 1959-04-21 Servo Electronic Switch And Si Supervisory remote control and signalling system
US3012210A (en) * 1959-06-04 1961-12-05 Donald J Nigg Directional couplers
US3113277A (en) * 1960-05-02 1963-12-03 Narda Microwave Corp Multi-section asymmetrical coupler
US3237130A (en) * 1963-04-17 1966-02-22 Emerson Electric Co Four-port directional coupler with direct current isolated intermediate conductor disposed about inner conductors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2883647A (en) * 1952-11-15 1959-04-21 Servo Electronic Switch And Si Supervisory remote control and signalling system
US3012210A (en) * 1959-06-04 1961-12-05 Donald J Nigg Directional couplers
US3113277A (en) * 1960-05-02 1963-12-03 Narda Microwave Corp Multi-section asymmetrical coupler
US3237130A (en) * 1963-04-17 1966-02-22 Emerson Electric Co Four-port directional coupler with direct current isolated intermediate conductor disposed about inner conductors

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736536A (en) * 1971-04-14 1973-05-29 Bendix Corp Microwave filter
US3764938A (en) * 1972-08-28 1973-10-09 Bell Telephone Labor Inc Resonance suppression in interdigital capacitors useful as dc bias breaks in diode oscillator circuits
US4027254A (en) * 1975-02-11 1977-05-31 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Directional coupler having interdigital comb electrodes
US4011528A (en) * 1975-07-14 1977-03-08 Stanford Research Institute Semi-lumped element coupler
US4127831A (en) * 1977-02-07 1978-11-28 Riblet Gordon P Branch line directional coupler having an impedance matching network connected to a port
US4127832A (en) * 1977-02-07 1978-11-28 Riblet Gordon P Directional coupler
US4224584A (en) * 1978-03-14 1980-09-23 Thomson-Csf Directional microwave coupler
US4216446A (en) * 1978-08-28 1980-08-05 Motorola, Inc. Quarter wave microstrip directional coupler having improved directivity
US4433313A (en) * 1980-09-12 1984-02-21 Societe D'etude Du Radant Apparatus for microwave directional coupling between a waveguide and a stripline
US4375054A (en) * 1981-02-04 1983-02-22 Rockwell International Corporation Suspended substrate-3 dB microwave quadrature coupler
US4376921A (en) * 1981-04-28 1983-03-15 Westinghouse Electric Corp. Microwave coupler with high isolation and high directivity
US4482873A (en) * 1982-09-16 1984-11-13 Rockwell International Corporation Printed hybrid quadrature 3 dB signal coupler apparatus
US4777458A (en) * 1985-04-02 1988-10-11 Gte Telecomunicazioni S.P.A. Thin film power coupler
JPH04505532A (ja) * 1989-06-02 1992-09-24 モトローラ・インコーポレーテッド 容量的に補償されたマイクロストリップ方向性結合器
US5159298A (en) * 1991-01-29 1992-10-27 Motorola, Inc. Microstrip directional coupler with single element compensation
EP0518423A1 (en) * 1991-06-11 1992-12-16 FOR.E.M. S.p.A. Microstrip coupler with maximal directivity
US5243305A (en) * 1991-06-11 1993-09-07 Forem S.P.A. Method to make microwave coupler with maximal directivity and adaptation and relevant microstrip coupler
AU644298B2 (en) * 1991-07-11 1993-12-02 Siemens Telecomunicazioni S.P.A. Microwave hybrid directional coupler with concentrated constants and quadrature outputs
US5650357A (en) * 1992-12-03 1997-07-22 Linear Technology Corporation Process for manufacturing a lead frame capacitor and capacitively-coupled isolator circuit using same
US5589709A (en) * 1992-12-03 1996-12-31 Linear Technology Inc. Lead frame capacitor and capacitively-coupled isolator circuit using same
US5444600A (en) * 1992-12-03 1995-08-22 Linear Technology Corporation Lead frame capacitor and capacitively-coupled isolator circuit using the same
US5926358A (en) * 1992-12-03 1999-07-20 Linear Technology Corporation Lead frame capacitor and capacitively-coupled isolator circuit using same
US5945728A (en) * 1992-12-03 1999-08-31 Linear Technology Corporation Lead frame capacitor and capacitively coupled isolator circuit
US5469129A (en) * 1994-08-29 1995-11-21 Motorola, Inc. Impedance transforming three-port power divider/combiner using lumped elements
US5825260A (en) * 1996-02-15 1998-10-20 Daimler-Benz Aerospace Ag Directional coupler for the high-frequency range
US5748056A (en) * 1996-10-02 1998-05-05 Itt Industries, Inc. Compact 90° monolithic GaAs coupler for wireless applications
WO2001076003A1 (es) * 2000-04-04 2001-10-11 Instituto De Astrofisica De Canarias Estructura de cambio de fase de 180° en microondas de banda ancha
ES2160550A1 (es) * 2000-04-04 2001-11-01 Inst De Astrofisica De Canaria Estructura de cambio de fase de 180 en microondas de banda ancha.
US6803838B2 (en) 2000-04-04 2004-10-12 Instituto De Astrofisica De Canarias Wideband 180 microwave phase switch
US20030098759A1 (en) * 2000-04-04 2003-05-29 Roger Hoyland Wideband 180 microwave phase switch
US20040113717A1 (en) * 2001-02-28 2004-06-17 George Passiopoulos Coupling device using buried capacitors in multilayered substrate
WO2002069440A1 (en) * 2001-02-28 2002-09-06 Nokia Corporation Coupling device using buried capacitors in multilayered substrate
US7034633B2 (en) 2001-02-28 2006-04-25 Nokia Corporation Coupling device using buried capacitors in multilayered substrate
US6759922B2 (en) * 2002-05-20 2004-07-06 Anadigics, Inc. High directivity multi-band coupled-line coupler for RF power amplifier
US7394333B2 (en) * 2002-12-06 2008-07-01 Stmicroelectronics S.A. Directional coupler
US20040113716A1 (en) * 2002-12-06 2004-06-17 Ezzeddine Hilal Directional coupler
US20090051462A1 (en) * 2005-04-07 2009-02-26 Kathrein-Werke Kg HF Coupler or HF Power Splitter, Especially a Narrow-Band and/or 3DB Coupler or Power Splitter
WO2006105847A1 (de) * 2005-04-07 2006-10-12 Kathrein-Werke Kg HOCHFREQUENZKOPPLER ODER LEISTUNGSTEILER, INSBESONDERE SCHMALBANDIGER UND/ODER 3dB-KOPPLER ODER LEISTUNGSTEILER
US7683734B2 (en) 2007-03-15 2010-03-23 Raytheon Canada Limited RF re-entrant combiner
US20080224797A1 (en) * 2007-03-15 2008-09-18 Miron Catoiu Rf re-entrant combiner
WO2009105020A1 (en) 2008-02-22 2009-08-27 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for symbol detection via reduced complexity sequence estimation processing
US20100001810A1 (en) * 2008-07-01 2010-01-07 Stmicroelectronics (Tours) Sas Integrated directional coupler
US8410864B2 (en) 2008-07-01 2013-04-02 Stmicroelectronics (Tours) Sas Integrated directional coupler
US20100225416A1 (en) * 2009-02-10 2010-09-09 Ingalls Mark W Multi-Section Velocity Compensated Microstrip Directional Coupler
US8587388B2 (en) * 2009-02-10 2013-11-19 Spectrum Control, Inc. Multi-section velocity compensated microstrip directional coupler
US20110052208A1 (en) * 2009-08-31 2011-03-03 Kabushiki Kaisha Toshiba Optoelectronic wiring film and optoelectronic wiring module
WO2011036652A2 (en) 2009-09-28 2011-03-31 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks
WO2011067696A2 (en) 2009-12-01 2011-06-09 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks using a decoder
WO2011067716A2 (en) 2009-12-01 2011-06-09 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for efficient amld matrix computations
US8558645B2 (en) * 2009-12-26 2013-10-15 Huawei Technologies Co., Ltd. Apparatus for improving transmission bandwidth
US20120075042A1 (en) * 2009-12-26 2012-03-29 Huawei Technologies Co., Ltd. Apparatus for improving transmission bandwidth
WO2011117762A2 (en) 2010-03-23 2011-09-29 Telefonaktiebolaget L M Ericsson (Publ) A method and apparatus for detecting a plurality of symbol blocks using a decoder
US8461938B2 (en) * 2010-10-29 2013-06-11 Freescale Semiconductor, Inc. Directional couplers for use in electronic devices, and methods of use thereof
US9048805B2 (en) 2011-10-04 2015-06-02 Rf Micro Devices, Inc. Tunable duplexer architecture
US20130285763A1 (en) * 2012-02-07 2013-10-31 Rf Micro Devices, Inc. Hybrid coupler
US9042275B2 (en) 2012-02-07 2015-05-26 Rf Micro Devices, Inc. Tunable duplexer architecture
US9071430B2 (en) 2012-02-07 2015-06-30 Rf Micro Devices, Inc. RF transceiver with distributed filtering topology
US9083518B2 (en) 2012-02-07 2015-07-14 Rf Micro Devices, Inc. Tunable hybrid coupler
US9190979B2 (en) * 2012-02-07 2015-11-17 Rf Micro Devices, Inc. Hybrid coupler
TWI484750B (enrdf_load_stackoverflow) * 2012-07-06 2015-05-11
US20170179565A1 (en) * 2015-12-16 2017-06-22 Alcatel-Lucent Canada Inc. Microstrip Line Directional Coupler
TWI640123B (zh) * 2016-07-01 2018-11-01 新加坡商雲網科技新加坡有限公司 分支線耦合器
US10735045B2 (en) 2018-04-23 2020-08-04 Qorvo Us, Inc. Diplexer circuit
US11133566B2 (en) * 2018-09-18 2021-09-28 Kabushiki Kaisha Toshiba Branch-line directional coupler and power amplifier device

Also Published As

Publication number Publication date
DE1962648A1 (de) 1970-10-01
FR2033700A5 (enrdf_load_stackoverflow) 1970-12-04
JPS4829174B1 (enrdf_load_stackoverflow) 1973-09-07
GB1288943A (enrdf_load_stackoverflow) 1972-09-13

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