GB1288943A - - Google Patents

Info

Publication number
GB1288943A
GB1288943A GB1288943DA GB1288943A GB 1288943 A GB1288943 A GB 1288943A GB 1288943D A GB1288943D A GB 1288943DA GB 1288943 A GB1288943 A GB 1288943A
Authority
GB
United Kingdom
Prior art keywords
lines
coupler
quadrature coupler
circuit portions
lumped capacitors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1288943A publication Critical patent/GB1288943A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Microwave Amplifiers (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

1288943 Strip line couplers WESTERN ELECTRIC CO Inc 10 Dec 1969 [17 March 1969] 60268/69 Heading H1W A microwave quadrature coupler is formed as a thin film on an insulating substrate 20 and comprises circuit portions forming transmission line sections 6-12, each of length less than #/4, where # is the mid-band frequency, and circuit portions 13-18 forming lumped capacitors connected between the ends of the transmission lines and ground. Branch line coupling between the series connected transmission lines 6, 7 interconnecting ports 1 and 4, and 8, 9 interconnecting ports 2 and 3 is provided by the lines 10-12. In an example lines 6-9 are 18% #/4, the phase being corrected and impedance transformed for quadrature coupler action by the lumped capacitors. A proximity quadrature coupler is provided in a further embodiment. The coupler may be formed by a photolithographic process.
GB1288943D 1969-03-17 1969-12-10 Expired GB1288943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80782769A 1969-03-17 1969-03-17

Publications (1)

Publication Number Publication Date
GB1288943A true GB1288943A (en) 1972-09-13

Family

ID=25197247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288943D Expired GB1288943A (en) 1969-03-17 1969-12-10

Country Status (5)

Country Link
US (1) US3593208A (en)
JP (1) JPS4829174B1 (en)
DE (1) DE1962648A1 (en)
FR (1) FR2033700A5 (en)
GB (1) GB1288943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492939A (en) * 1981-12-02 1985-01-08 The Marconi Company Limited Planar, quadrature microwave coupler

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778691C3 (en) * 1968-05-24 1978-07-13 Wilhelm 7067 Pluederhausen Bahmueller Multipurpose foldable ladder
DE2006846C3 (en) * 1970-02-14 1983-12-22 Hoffmann, Helmut Multipurpose foldable ladder
DE2052584C3 (en) * 1970-10-27 1984-09-27 Hoffmann, Helmut Multipurpose foldable ladder
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
DE2754755C2 (en) * 1977-12-08 1986-10-02 Wilhelm Bahmüller, Maschinenbau Präzisionswerkzeuge GmbH, 7067 Plüderhausen Multipurpose foldable ladder
FR2420220A1 (en) * 1978-03-14 1979-10-12 Thomson Csf DIRECTIVE HYPERFREQUENCY COUPLER, AND HYPERFREQUENCY CIRCUIT CONTAINING SUCH A COUPLER
US4216446A (en) * 1978-08-28 1980-08-05 Motorola, Inc. Quarter wave microstrip directional coupler having improved directivity
FR2490408A1 (en) * 1980-09-12 1982-03-19 Etude Radant Sarl DIRECT HYPERFREQUENCY COUPLERS BETWEEN RECTANGULAR WAVEGUIDE AND TRIPLAQUE LINE
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
IT1183558B (en) * 1985-04-02 1987-10-22 Gte Telecom Spa THIN FILM POWER COUPLER
US4999593A (en) * 1989-06-02 1991-03-12 Motorola, Inc. Capacitively compensated microstrip directional coupler
US5159298A (en) * 1991-01-29 1992-10-27 Motorola, Inc. Microstrip directional coupler with single element compensation
IT1248035B (en) * 1991-06-11 1995-01-05 For Em S P A SYSTEM FOR MAKING MICROWAVE COUPLERS WITH MAXIMUM DIRECTIVITY AND ADAPTATION, AND RELATED MICROSTRIP COUPLERS.
IT1251221B (en) * 1991-07-11 1995-05-04 Sits Soc It Telecom Siemens HYBRID AND MICROWAVE DIRECTIONAL COUPLER WITH CONCENTRATED CONSTANTS WITH SQUARE 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
DE19605569A1 (en) * 1996-02-15 1997-08-21 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
ES2160550B1 (en) * 2000-04-04 2003-04-01 Inst De Astrofisica De Canaria 180 PHASE CHANGE STRUCTURE IN WIDE BAND MICROWAVES.
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
JP2004289797A (en) * 2002-12-06 2004-10-14 Stmicroelectronics Sa Directional coupler
DE102005016054A1 (en) * 2005-04-07 2006-10-12 Kathrein-Werke Kg High-frequency coupler or power divider, in particular narrow-band and / or 3dB coupler or power divider
US7683734B2 (en) * 2007-03-15 2010-03-23 Raytheon Canada Limited RF re-entrant combiner
WO2009081179A1 (en) * 2007-12-21 2009-07-02 Bae Systems Plc Microwave coupler
US8559561B2 (en) 2008-02-22 2013-10-15 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for symbol detection via reduced complexity sequence estimation processing
FR2933540B1 (en) * 2008-07-01 2011-12-02 St Microelectronics Tours Sas INTEGRATED DIRECTIVE COUPLER
US8587388B2 (en) * 2009-02-10 2013-11-19 Spectrum Control, Inc. Multi-section velocity compensated microstrip directional coupler
JP2011053354A (en) * 2009-08-31 2011-03-17 Toshiba Corp Optoelectronic wiring film and optoelectronic wiring module
US9124458B2 (en) 2009-09-28 2015-09-01 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for detecting a plurality of symbol blocks
US8576960B2 (en) 2009-12-01 2013-11-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for efficient AMLD matrix computations
US8290091B2 (en) 2009-12-01 2012-10-16 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for detecting a plurality of symbol blocks using a decoder
US8605829B2 (en) 2009-12-01 2013-12-10 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for detecting a plurality of symbol blocks using a decoder
CN101794929B (en) * 2009-12-26 2013-01-02 华为技术有限公司 Device 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
US9048805B2 (en) 2011-10-04 2015-06-02 Rf Micro Devices, Inc. Tunable duplexer architecture
US9190979B2 (en) * 2012-02-07 2015-11-17 Rf Micro Devices, Inc. Hybrid coupler
US9083518B2 (en) 2012-02-07 2015-07-14 Rf Micro Devices, Inc. Tunable hybrid coupler
TW201404034A (en) * 2012-07-06 2014-01-16 Senao Networks Inc Power amplification device and coupler
US20170179565A1 (en) * 2015-12-16 2017-06-22 Alcatel-Lucent Canada Inc. Microstrip Line Directional Coupler
US9893409B2 (en) * 2016-07-01 2018-02-13 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Branch-line coupler
US10735045B2 (en) 2018-04-23 2020-08-04 Qorvo Us, Inc. Diplexer circuit
EP3855563A4 (en) * 2018-09-18 2022-05-18 Kabushiki Kaisha Toshiba Branch line directional coupler and power amplification device

Family Cites Families (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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492939A (en) * 1981-12-02 1985-01-08 The Marconi Company Limited Planar, quadrature microwave coupler

Also Published As

Publication number Publication date
JPS4829174B1 (en) 1973-09-07
US3593208A (en) 1971-07-13
FR2033700A5 (en) 1970-12-04
DE1962648A1 (en) 1970-10-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees