JPS5451445A - Directional coupler - Google Patents

Directional coupler

Info

Publication number
JPS5451445A
JPS5451445A JP11742577A JP11742577A JPS5451445A JP S5451445 A JPS5451445 A JP S5451445A JP 11742577 A JP11742577 A JP 11742577A JP 11742577 A JP11742577 A JP 11742577A JP S5451445 A JPS5451445 A JP S5451445A
Authority
JP
Japan
Prior art keywords
parallel line
spiral
line
coupling
wave
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.)
Pending
Application number
JP11742577A
Other languages
Japanese (ja)
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 JP11742577A priority Critical patent/JPS5451445A/en
Priority to DE19782839874 priority patent/DE2839874A1/en
Publication of JPS5451445A publication Critical patent/JPS5451445A/en
Pending 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

  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Waveguides (AREA)

Abstract

PURPOSE: To make easy for the namufacturing and to enable small size unit, by constituting the coupling part at the both sides of the line through the placement of the parallel line in spiral, in the parallel line directional coupler of 1/4 wave length.
CONSTITUTION: The parallel line D in one side length and W in width is placed with the distance S in polygonal spiral. The incident wave to the terminal 1' is distributed to the terminals 2' and 3' and is not appeared at the terminal 4'. The total length of the parallel line is 1/4 wave length. With this constitution, since coupling is made at the both sides of line, the distance obtaining the desired degree of coupling can comparatively be widened, allowing easy manufacturing, and small size unit can be made with spiral shape, realizeing the micro wave integrated circuit easily. Further, the spiral shape can be made to arbitrary shape such as circular shape, and the number of turns is not limited to two turns and it can be taken more than or less than that
COPYRIGHT: (C)1979,JPO&Japio
JP11742577A 1977-09-30 1977-09-30 Directional coupler Pending JPS5451445A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11742577A JPS5451445A (en) 1977-09-30 1977-09-30 Directional coupler
DE19782839874 DE2839874A1 (en) 1977-09-30 1978-09-13 Strip line quadrature coupler - with spirals on dielectric substrate, suitable for integrated microwave circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11742577A JPS5451445A (en) 1977-09-30 1977-09-30 Directional coupler

Publications (1)

Publication Number Publication Date
JPS5451445A true JPS5451445A (en) 1979-04-23

Family

ID=14711318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11742577A Pending JPS5451445A (en) 1977-09-30 1977-09-30 Directional coupler

Country Status (2)

Country Link
JP (1) JPS5451445A (en)
DE (1) DE2839874A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017008U (en) * 1983-07-12 1985-02-05 株式会社村田製作所 directional coupler
US4777458A (en) * 1985-04-02 1988-10-11 Gte Telecomunicazioni S.P.A. Thin film power coupler
WO1995032527A1 (en) * 1994-05-19 1995-11-30 Tdk Corporation Directional coupler
US5521563A (en) * 1995-06-05 1996-05-28 Emc Technology, Inc. Microwave hybrid coupler
JP2009278540A (en) * 2008-05-16 2009-11-26 Dx Antenna Co Ltd Balun device and antenna device
WO2012111598A1 (en) * 2011-02-17 2012-08-23 株式会社村田製作所 Directional coupler

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3257487B2 (en) * 1997-12-05 2002-02-18 株式会社村田製作所 Directional coupler
GB2380616A (en) * 2001-05-31 2003-04-09 Nokia Corp A signal combining device
GB2389715B (en) 2002-05-13 2004-12-08 Univ Cardiff Method of combining signals and device therefor
DE102011080429A1 (en) 2011-08-04 2013-02-07 Endress + Hauser Gmbh + Co. Kg Galvanically isolated directional coupler
RU2717386C1 (en) * 2019-05-27 2020-03-23 Акционерное общество "Микроволновые системы" Spiral ultra-wideband microstrip quadrature directional coupler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178671A (en) * 1974-12-23 1976-07-08 Ibm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178671A (en) * 1974-12-23 1976-07-08 Ibm

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017008U (en) * 1983-07-12 1985-02-05 株式会社村田製作所 directional coupler
US4777458A (en) * 1985-04-02 1988-10-11 Gte Telecomunicazioni S.P.A. Thin film power coupler
WO1995032527A1 (en) * 1994-05-19 1995-11-30 Tdk Corporation Directional coupler
US5841328A (en) * 1994-05-19 1998-11-24 Tdk Corporation Directional coupler
US5521563A (en) * 1995-06-05 1996-05-28 Emc Technology, Inc. Microwave hybrid coupler
JP2009278540A (en) * 2008-05-16 2009-11-26 Dx Antenna Co Ltd Balun device and antenna device
WO2012111598A1 (en) * 2011-02-17 2012-08-23 株式会社村田製作所 Directional coupler

Also Published As

Publication number Publication date
DE2839874A1 (en) 1979-04-05

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