JPS5662402A - Directional coupler - Google Patents

Directional coupler

Info

Publication number
JPS5662402A
JPS5662402A JP13844079A JP13844079A JPS5662402A JP S5662402 A JPS5662402 A JP S5662402A JP 13844079 A JP13844079 A JP 13844079A JP 13844079 A JP13844079 A JP 13844079A JP S5662402 A JPS5662402 A JP S5662402A
Authority
JP
Japan
Prior art keywords
transmission lines
error
series
compensate
capacitor
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.)
Granted
Application number
JP13844079A
Other languages
Japanese (ja)
Other versions
JPS6115605B2 (en
Inventor
Yasuyuki Tokumitsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13844079A priority Critical patent/JPS5662402A/en
Publication of JPS5662402A publication Critical patent/JPS5662402A/en
Publication of JPS6115605B2 publication Critical patent/JPS6115605B2/ja
Granted 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

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To compensate the error fo characteristics based on manufacturing error, by providing a reactance element is series to or in parallel with transmission lines constituting a coupler. CONSTITUTION:In manufacturing a directional coupler where a plurality of a transmission lines of 1/4 wave length through etched copper laminated substrates are provided manufacturing error at the etching process is caused. To compensate this error, reactance elements 8, 9 such as inductance or capacitor are connected in series to or in parallel with the transmission lines. The calculation value can almost be satisfied by connecting a capacitor of around 4 PF is capacitance in series with the transmission lines 0.82mm. and 0.25mm. as measured values respectively, in comparison with the line 0.9mm. and 0.25mm. is line distance as the design value. Thus, the manufacture yield for directional couplers requiring high accuracy can be made.
JP13844079A 1979-10-26 1979-10-26 Directional coupler Granted JPS5662402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13844079A JPS5662402A (en) 1979-10-26 1979-10-26 Directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13844079A JPS5662402A (en) 1979-10-26 1979-10-26 Directional coupler

Publications (2)

Publication Number Publication Date
JPS5662402A true JPS5662402A (en) 1981-05-28
JPS6115605B2 JPS6115605B2 (en) 1986-04-25

Family

ID=15222031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13844079A Granted JPS5662402A (en) 1979-10-26 1979-10-26 Directional coupler

Country Status (1)

Country Link
JP (1) JPS5662402A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846505A (en) * 1981-09-14 1983-03-18 市川　征二 Lifting of lighting apparatus
JPS5850502U (en) * 1981-09-30 1983-04-05 八木アンテナ株式会社 directional coupler
EP0298434A2 (en) * 1987-07-08 1989-01-11 Siemens Aktiengesellschaft Thin-film quadrature coupler
EP0317718A2 (en) * 1987-11-26 1989-05-31 ANT Nachrichtentechnik GmbH Planar branch line coupler
US5159298A (en) * 1991-01-29 1992-10-27 Motorola, Inc. Microstrip directional coupler with single element compensation
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
US6150897A (en) * 1997-03-31 2000-11-21 Nippon Telegraph And Telephone Corporation Balun circuit with a cancellation element in each coupled line
WO2002003494A1 (en) * 2000-07-04 2002-01-10 Matsushita Electric Industrial Co., Ltd. Directional coupler and directional coupling method
EP1291959A1 (en) * 2000-06-09 2003-03-12 Mitsubishi Denki Kabushiki Kaisha Directional coupler
US6549089B2 (en) * 2001-07-13 2003-04-15 Filtronic Pty Ltd. Microstrip directional coupler loaded by a pair of inductive stubs
WO2004034505A1 (en) * 2002-09-27 2004-04-22 Nokia Corporation Coupling device
EP1427053A1 (en) * 2002-12-06 2004-06-09 STMicroelectronics S.A. Directional coupler
WO2006105847A1 (en) * 2005-04-07 2006-10-12 Kathrein-Werke Kg High-frequency coupler or power splitter, especially a narrow-band 3db coupler or power splitter
JP2010245971A (en) * 2009-04-08 2010-10-28 Mitsubishi Electric Corp High frequency interruption circuit
US8410864B2 (en) 2008-07-01 2013-04-02 Stmicroelectronics (Tours) Sas Integrated directional coupler
US9249879B2 (en) 2010-08-27 2016-02-02 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system for hydraulic working machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02127102A (en) * 1988-11-04 1990-05-15 Sumitomo Rubber Ind Ltd Tire for racing

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846505A (en) * 1981-09-14 1983-03-18 市川　征二 Lifting of lighting apparatus
JPS5850502U (en) * 1981-09-30 1983-04-05 八木アンテナ株式会社 directional coupler
EP0298434A2 (en) * 1987-07-08 1989-01-11 Siemens Aktiengesellschaft Thin-film quadrature coupler
EP0317718A2 (en) * 1987-11-26 1989-05-31 ANT Nachrichtentechnik GmbH Planar branch line coupler
US5159298A (en) * 1991-01-29 1992-10-27 Motorola, Inc. Microstrip directional coupler with single element compensation
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
US6150897A (en) * 1997-03-31 2000-11-21 Nippon Telegraph And Telephone Corporation Balun circuit with a cancellation element in each coupled line
EP1291959A4 (en) * 2000-06-09 2003-05-28 Mitsubishi Electric Corp Directional coupler
EP1291959A1 (en) * 2000-06-09 2003-03-12 Mitsubishi Denki Kabushiki Kaisha Directional coupler
WO2002003494A1 (en) * 2000-07-04 2002-01-10 Matsushita Electric Industrial Co., Ltd. Directional coupler and directional coupling method
US6549089B2 (en) * 2001-07-13 2003-04-15 Filtronic Pty Ltd. Microstrip directional coupler loaded by a pair of inductive stubs
WO2004034505A1 (en) * 2002-09-27 2004-04-22 Nokia Corporation Coupling device
US7084715B2 (en) 2002-09-27 2006-08-01 Nokia Corporation Coupling device
CN1293668C (en) * 2002-09-27 2007-01-03 诺基亚公司 Coupling device
EP1427053A1 (en) * 2002-12-06 2004-06-09 STMicroelectronics S.A. Directional coupler
US7394333B2 (en) 2002-12-06 2008-07-01 Stmicroelectronics S.A. Directional coupler
WO2006105847A1 (en) * 2005-04-07 2006-10-12 Kathrein-Werke Kg High-frequency coupler or power splitter, especially a narrow-band 3db coupler or power splitter
US8410864B2 (en) 2008-07-01 2013-04-02 Stmicroelectronics (Tours) Sas Integrated directional coupler
JP2010245971A (en) * 2009-04-08 2010-10-28 Mitsubishi Electric Corp High frequency interruption circuit
US9249879B2 (en) 2010-08-27 2016-02-02 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system for hydraulic working machine

Also Published As

Publication number Publication date
JPS6115605B2 (en) 1986-04-25

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