EP0317717A3 - Planar branch line coupler - Google Patents

Planar branch line coupler Download PDF

Info

Publication number
EP0317717A3
EP0317717A3 EP88114732A EP88114732A EP0317717A3 EP 0317717 A3 EP0317717 A3 EP 0317717A3 EP 88114732 A EP88114732 A EP 88114732A EP 88114732 A EP88114732 A EP 88114732A EP 0317717 A3 EP0317717 A3 EP 0317717A3
Authority
EP
European Patent Office
Prior art keywords
branch line
line coupler
planar branch
planar
coupler
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
EP88114732A
Other languages
German (de)
Other versions
EP0317717A2 (en
EP0317717B1 (en
Inventor
Haoappa Dr.-Ing. Ashoka
Abdel-Messiah Dr.-Ing. Khilla
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.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik GmbH
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 ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Publication of EP0317717A2 publication Critical patent/EP0317717A2/en
Publication of EP0317717A3 publication Critical patent/EP0317717A3/en
Application granted granted Critical
Publication of EP0317717B1 publication Critical patent/EP0317717B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
    • H01P5/22—Hybrid ring junctions
    • H01P5/227—90° branch line couplers
EP19880114732 1987-11-26 1988-09-09 Planar branch line coupler Expired - Lifetime EP0317717B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740098 1987-11-26
DE19873740098 DE3740098C1 (en) 1987-11-26 1987-11-26 Planar junction coupler

Publications (3)

Publication Number Publication Date
EP0317717A2 EP0317717A2 (en) 1989-05-31
EP0317717A3 true EP0317717A3 (en) 1990-06-13
EP0317717B1 EP0317717B1 (en) 1993-06-16

Family

ID=6341334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880114732 Expired - Lifetime EP0317717B1 (en) 1987-11-26 1988-09-09 Planar branch line coupler

Country Status (2)

Country Link
EP (1) EP0317717B1 (en)
DE (1) DE3740098C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI586028B (en) * 2015-04-10 2017-06-01 Nat Chin-Yi Univ Of Tech Hybrid branch coupler
TWI616023B (en) * 2017-03-30 2018-02-21 國立勤益科技大學 Fixed transmission line characteristic impedance value arbitrary output ratio branch coupler
TWI650899B (en) * 2017-12-18 2019-02-11 國立勤益科技大學 Hybrid serial high frequency signal distribution circuit
US10644375B1 (en) * 2018-11-14 2020-05-05 Nanning Fugui Precision Industrial Co., Ltd. Branch-line coupler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2728312A1 (en) * 1977-03-28 1978-10-05 Gordon Potter Riblet DIRECTIONAL COUPLER

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182601A (en) * 1983-03-31 1984-10-17 Fujitsu Ltd Branching and combining device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2728312A1 (en) * 1977-03-28 1978-10-05 Gordon Potter Riblet DIRECTIONAL COUPLER

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS LETTERS, Band 17, Nr. 2, 22. Januar 1981, Seiten 87-89; M. CUHACI et al.: "High frequency microstrip branch-line coupler design with T-junction discontinuity compensation" *
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Band MTT-31, Nr. 8, August 1983, Seiten 674-678; M. MURAGUCHI et al.: "Optimum design of 3-dB branch-line couplers using microstrip lines" *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 43 (E-298)[1766], 22. Februar 1985; & JP-A-59 182 601 (FUJITSU K.K.) 17-10-1984 *
PROCEEDINGS OF THE NAT. ELECTR. CONFERENCE, Band 24, 1. Dezember 1968, Seiten 314-317; C.P. HARTWIG et al.: "Microstrip technology" *

Also Published As

Publication number Publication date
EP0317717A2 (en) 1989-05-31
EP0317717B1 (en) 1993-06-16
DE3740098C1 (en) 1989-02-02

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