ZA857540B - Directional couplers of the branchline type - Google Patents

Directional couplers of the branchline type

Info

Publication number
ZA857540B
ZA857540B ZA857540A ZA857540A ZA857540B ZA 857540 B ZA857540 B ZA 857540B ZA 857540 A ZA857540 A ZA 857540A ZA 857540 A ZA857540 A ZA 857540A ZA 857540 B ZA857540 B ZA 857540B
Authority
ZA
South Africa
Prior art keywords
directional couplers
branchline
type
branchline type
couplers
Prior art date
Application number
ZA857540A
Other languages
English (en)
Inventor
Carlo Buoli
Original Assignee
Gte Telecom Spa
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 Gte Telecom Spa filed Critical Gte Telecom Spa
Publication of ZA857540B publication Critical patent/ZA857540B/xx

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
ZA857540A 1984-10-30 1985-09-30 Directional couplers of the branchline type ZA857540B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23387/84A IT1177093B (it) 1984-10-30 1984-10-30 Perfezionamenti agli accoppiatori direzionali del tipo branchline

Publications (1)

Publication Number Publication Date
ZA857540B true ZA857540B (en) 1986-06-25

Family

ID=11206629

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA857540A ZA857540B (en) 1984-10-30 1985-09-30 Directional couplers of the branchline type

Country Status (8)

Country Link
US (1) US4697161A (ja)
EP (1) EP0180011B1 (ja)
JP (1) JPH0611082B2 (ja)
CN (1) CN1004246B (ja)
AU (1) AU580101B2 (ja)
DE (1) DE3585203D1 (ja)
IT (1) IT1177093B (ja)
ZA (1) ZA857540B (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1183558B (it) * 1985-04-02 1987-10-22 Gte Telecom Spa Accoppiatore di potenza in film sottile
JPH0615673Y2 (ja) * 1986-07-30 1994-04-27 精工研株式会社 二段変速ゼンマイユニットボックス構造
US5001492A (en) * 1988-10-11 1991-03-19 Hughes Aircraft Company Plural layer co-planar waveguide coupling system for feeding a patch radiator array
JPH02190003A (ja) * 1989-01-19 1990-07-26 Fujitsu Ltd 位相反転器
GB2227629B (en) * 1989-01-28 1993-04-14 Marconi Co Ltd Television transmitter
JP2665251B2 (ja) * 1989-02-15 1997-10-22 富士通株式会社 マイクロ波増幅器
FR2664432B1 (fr) * 1990-07-04 1992-11-20 Alcatel Espace Module hyperfrequence triplaque.
US5235296A (en) * 1990-11-28 1993-08-10 Matsushita Electric Industrial Co., Ltd. Directional coupler using a microstrip line
FR2722032B1 (fr) * 1994-07-01 1996-09-13 Thomson Consumer Electronics Dispositif de couplage en anneau
US5561378A (en) * 1994-07-05 1996-10-01 Motorola, Inc. Circuit probe for measuring a differential circuit
KR970008274B1 (ko) * 1994-11-01 1997-05-22 엘지산전 주식회사 엘리베이터의 정지위치 제어방법
DE19839890C1 (de) * 1998-09-02 2000-04-06 Bosch Gmbh Robert Doppelgegentaktmischer
US7015773B2 (en) * 2001-01-31 2006-03-21 Ipr Licensing, Inc. Electronic phase shifter with enhanced phase shift performance
KR100471049B1 (ko) * 2001-02-01 2005-03-08 코모텍 주식회사 링 하이브리드 결합기를 이용한 비방사 유전체 도파관혼합기
JP3988698B2 (ja) * 2003-08-08 2007-10-10 株式会社村田製作所 方向性結合器および高周波回路装置
US7263334B2 (en) * 2003-10-31 2007-08-28 Nokia Corporation Directional coupler for use in VCO unequal power splitting
CN103700915B (zh) * 2013-12-19 2015-09-02 武汉虹信通信技术有限责任公司 一种四进四出电桥
US9893409B2 (en) * 2016-07-01 2018-02-13 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Branch-line coupler
CN109583000A (zh) * 2018-09-16 2019-04-05 苏州芯智瑞微电子有限公司 应用于无线功率传输中三次谐波天线及其校准方法
US10644375B1 (en) * 2018-11-14 2020-05-05 Nanning Fugui Precision Industrial Co., Ltd. Branch-line coupler

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES415299A1 (es) * 1973-05-28 1976-02-01 Standard Electrica Sa Hibrido-duplexor de 180 y cuatro puertas.
US3996533A (en) * 1975-07-07 1976-12-07 Lee Chong W High frequency, multi-throw switch employing hybrid couplers and reflection-type phase shifters
US4075581A (en) * 1976-06-01 1978-02-21 Motorola, Inc. Stripline quadrature coupler
FR2420220A1 (fr) * 1978-03-14 1979-10-12 Thomson Csf Coupleur hyperfrequence directif, et circuit hyperfrequence comportant un tel coupleur
JPS55150401A (en) * 1979-04-09 1980-11-22 Mitsui Shipbuilding Eng Control method of waste heat regeneration system
JPS55156401A (en) * 1979-05-24 1980-12-05 Fujitsu Ltd Hybrid
FR2473813B1 (fr) * 1980-01-15 1986-03-21 Thomson Csf Repartiteur de puissance radio-electrique, et dispositifs radio-electriques utilisant un tel repartiteur, notamment a l'etat solide
DE3176026D1 (en) * 1981-05-22 1987-04-23 Ford Aerospace & Communication Coupler having arbitary impedance transformation ratio and arbitary coupling ratio
GB2110882B (en) * 1981-12-02 1985-09-25 Marconi Co Ltd Microwave coupler devices
US4420839A (en) * 1982-03-30 1983-12-13 Bunker Ramo-Eltra Corporation Hybrid ring having improved bandwidth characteristic

Also Published As

Publication number Publication date
AU580101B2 (en) 1988-12-22
IT8423387A0 (it) 1984-10-30
AU4896185A (en) 1986-05-08
IT1177093B (it) 1987-08-26
DE3585203D1 (de) 1992-02-27
EP0180011A1 (en) 1986-05-07
CN1004246B (zh) 1989-05-17
JPS61179602A (ja) 1986-08-12
EP0180011B1 (en) 1992-01-15
US4697161A (en) 1987-09-29
IT8423387A1 (it) 1986-04-30
CN85107733A (zh) 1986-04-10
JPH0611082B2 (ja) 1994-02-09

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