EP0228265A3 - Microwave power amplifier - Google Patents

Microwave power amplifier

Info

Publication number: EP0228265A3
Authority: EP; European Patent Office
Prior art keywords: power amplifier; microwave power; microwave; amplifier; power
Prior art date: 1985-12-20
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

EP86309975A

Other versions

EP0228265A2 (en

EP0228265B1 (en

Inventor

Nagahisa Furutani

Osamu Baba

Sinichi Murai

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.)

1985-12-20

Filing date

1986-12-19

Publication date

1988-09-14

1986-12-19 Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd

1987-07-08 Publication of EP0228265A2 publication Critical patent/EP0228265A2/en

1988-09-14 Publication of EP0228265A3 publication Critical patent/EP0228265A3/en

1993-04-14 Application granted granted Critical

1993-04-14 Publication of EP0228265B1 publication Critical patent/EP0228265B1/en

2006-12-19 Anticipated expiration legal-status Critical

Status 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
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/183—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers at least one of the guides being a coaxial line

EP19860309975 1985-12-20 1986-12-19 Microwave power amplifier Expired - Lifetime EP0228265B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP287048/85		1985-12-20
JP28704885A JPS62145908A (en)	1985-12-20	1985-12-20	Microwave power amplifier

Publications (3)

Publication Number	Publication Date
EP0228265A2 EP0228265A2 (en)	1987-07-08
EP0228265A3 true EP0228265A3 (en)	1988-09-14
EP0228265B1 EP0228265B1 (en)	1993-04-14

Family

ID=17712374

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19860309975 Expired - Lifetime EP0228265B1 (en)	1985-12-20	1986-12-19	Microwave power amplifier

Country Status (3)

Country	Link
EP (1)	EP0228265B1 (en)
JP (1)	JPS62145908A (en)
DE (1)	DE3688283T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5487184A (en) *	1993-11-09	1996-01-23	Motorola, Inc.	Offset transmission line coupler for radio frequency signal amplifiers
WO2004097973A1 (en)	2003-04-25	2004-11-11	Telefonaktiebolaget Lm Ericsson (Publ)	An improved directional coupler
CN101009396B (en) *	2007-01-18	2010-11-10	华为技术有限公司	Directional coupler and the device with the same
CN102243268B (en) *	2010-07-29	2013-10-16	东南大学	Micro-electro-mechanical directional coupling microwave power sensor and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1191414A (en) *	1958-02-10	1959-10-20	Csf	Directional coupler between coaxial line and triplate line
GB849443A (en) *	1956-08-04	1960-09-28	Sir W G Armstong Whitworth Air	Improvements in and relating to radio frequency coupling units
US3169219A (en) *	1961-06-29	1965-02-09	Richard K Royce	Open wire directional electromagnetic coupler
DE2320458A1 (en) *	1973-04-21	1974-11-07	Licentia Gmbh	WIDE-SIDED DIRECTIVE COUPLER IN STRIP LINE TECHNOLOGY
US4122400A (en) *	1976-11-08	1978-10-24	Rca Corporation	Amplifier protection circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5568701A (en) *	1978-11-20	1980-05-23	Toshiba Corp	Microwave filter
JPS60177502U (en) *	1984-05-01	1985-11-26	日本電気株式会社	Parallel line microwave directional coupler

1985
- 1985-12-20 JP JP28704885A patent/JPS62145908A/en active Granted
1986
- 1986-12-19 DE DE19863688283 patent/DE3688283T2/en not_active Expired - Fee Related
- 1986-12-19 EP EP19860309975 patent/EP0228265B1/en not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB849443A (en) *	1956-08-04	1960-09-28	Sir W G Armstong Whitworth Air	Improvements in and relating to radio frequency coupling units
FR1191414A (en) *	1958-02-10	1959-10-20	Csf	Directional coupler between coaxial line and triplate line
US3169219A (en) *	1961-06-29	1965-02-09	Richard K Royce	Open wire directional electromagnetic coupler
DE2320458A1 (en) *	1973-04-21	1974-11-07	Licentia Gmbh	WIDE-SIDED DIRECTIVE COUPLER IN STRIP LINE TECHNOLOGY
US4122400A (en) *	1976-11-08	1978-10-24	Rca Corporation	Amplifier protection circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
12th EUROPEAN MICROWAVE CONFERENCE, 13th-17th September 1982, pages 166-171, Helsinki, FI, CONFERENCE PROCEEDINGS, Microwave Exhibitions and Publishers Ltd, Kent GB; S.R. BIRD: "A 180 KW L-band distributed solid-state transmitter" *

Also Published As

Publication number	Publication date
EP0228265A2 (en)	1987-07-08
DE3688283D1 (en)	1993-05-19
JPS62145908A (en)	1987-06-30
DE3688283T2 (en)	1993-07-29
EP0228265B1 (en)	1993-04-14
JPH0369442B2 (en)	1991-11-01

Legal Events

Date	Code	Title	Description
1987-05-23	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1987-07-08	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB
1988-07-26	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1988-09-14	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB
1989-05-03	17P	Request for examination filed	Effective date: 19890228
1991-02-06	17Q	First examination report despatched	Effective date: 19901220
1993-02-26	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1993-04-14	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB
1993-05-19	REF	Corresponds to:	Ref document number: 3688283 Country of ref document: DE Date of ref document: 19930519
1993-07-30	ET	Fr: translation filed
1994-02-17	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1994-02-17	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1994-04-06	26N	No opposition filed
1995-12-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19951211 Year of fee payment: 10
1995-12-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19951212 Year of fee payment: 10
1995-12-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19951222 Year of fee payment: 10
1996-12-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19961219
1997-08-06	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19961219
1997-08-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19970829
1997-09-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19970902
1997-10-31	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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