FR2046756A1 - - Google Patents

Info

Publication number
FR2046756A1
FR2046756A1 FR7021722A FR7021722A FR2046756A1 FR 2046756 A1 FR2046756 A1 FR 2046756A1 FR 7021722 A FR7021722 A FR 7021722A FR 7021722 A FR7021722 A FR 7021722A FR 2046756 A1 FR2046756 A1 FR 2046756A1
Authority
FR
France
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
FR7021722A
Other languages
French (fr)
Other versions
FR2046756B1 (en
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of FR2046756A1 publication Critical patent/FR2046756A1/fr
Application granted granted Critical
Publication of FR2046756B1 publication Critical patent/FR2046756B1/fr
Expired 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
    • H01P5/181—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 hollow waveguides
    • H01P5/182—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 hollow waveguides the waveguides being arranged in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
FR707021722A 1969-06-13 1970-06-12 Expired FR2046756B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3003769 1969-06-13

Publications (2)

Publication Number Publication Date
FR2046756A1 true FR2046756A1 (en) 1971-03-12
FR2046756B1 FR2046756B1 (en) 1974-07-12

Family

ID=10301256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR707021722A Expired FR2046756B1 (en) 1969-06-13 1970-06-12

Country Status (4)

Country Link
US (1) US3614672A (en)
FR (1) FR2046756B1 (en)
GB (1) GB1252969A (en)
NL (1) NL7008597A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761843A (en) * 1972-05-16 1973-09-25 Merrimac Ind Inc Four port networks synthesized from interconnection of coupled and uncoupled sections of line lengths
US4467294A (en) * 1981-12-17 1984-08-21 Vitalink Communications Corporation Waveguide apparatus and method for dual polarized and dual frequency signals
US4812788A (en) * 1987-11-02 1989-03-14 Hughes Aircraft Company Waveguide matrix including in-plane crossover
DE19716290A1 (en) * 1997-04-18 1998-10-29 Bosch Gmbh Robert Directional coupler
JP2009225098A (en) * 2008-03-17 2009-10-01 Nec Corp Waveguide coupler
JP5459225B2 (en) * 2008-12-26 2014-04-02 日本電気株式会社 Band pass filter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823356A (en) * 1952-12-11 1958-02-11 Bell Telephone Labor Inc Frequency selective high frequency power dividing networks
US2936430A (en) * 1955-06-18 1960-05-10 Pierre G Marie Wide band resonant directional couplers
US2991431A (en) * 1959-05-27 1961-07-04 Bell Telephone Labor Inc Electromagnetic wave filter
GB929289A (en) * 1959-02-27 1963-06-19 Thomson Houston Comp Francaise Improvements relating to electrical duplexers
US3230482A (en) * 1963-10-28 1966-01-18 Seymour B Cohn Compact directional coupler
US3274519A (en) * 1964-02-05 1966-09-20 Lab For Electronics Inc Frequency selective coupling device having ferrite elements biased to different resonant frequencies

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566386A (en) * 1944-10-24 1951-09-04 Univ Leland Stanford Junior Frequency and direction selective high-frequency transmission line apparatus
US2879484A (en) * 1953-02-11 1959-03-24 Bell Telephone Labor Inc Branching filter
US2948863A (en) * 1953-08-21 1960-08-09 Philco Corp Signal channeling system
US2922122A (en) * 1956-12-31 1960-01-19 Bell Telephone Labor Inc Wave-guide coupler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823356A (en) * 1952-12-11 1958-02-11 Bell Telephone Labor Inc Frequency selective high frequency power dividing networks
US2936430A (en) * 1955-06-18 1960-05-10 Pierre G Marie Wide band resonant directional couplers
GB929289A (en) * 1959-02-27 1963-06-19 Thomson Houston Comp Francaise Improvements relating to electrical duplexers
US2991431A (en) * 1959-05-27 1961-07-04 Bell Telephone Labor Inc Electromagnetic wave filter
US3230482A (en) * 1963-10-28 1966-01-18 Seymour B Cohn Compact directional coupler
US3274519A (en) * 1964-02-05 1966-09-20 Lab For Electronics Inc Frequency selective coupling device having ferrite elements biased to different resonant frequencies

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE AMERICAINE : PROCEEDINGS OF THE INSTITUTE OFRADIO ENGINEERS, VOLUME 35, NO 2, FEVRIER 1947 , PAGES 160 A 165 : L'ARTICLE DE W.W. MUMFORD "DIRECTIONAL COUPLERS" *

Also Published As

Publication number Publication date
NL7008597A (en) 1970-12-15
GB1252969A (en) 1971-11-10
US3614672A (en) 1971-10-19
FR2046756B1 (en) 1974-07-12

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Legal Events

Date Code Title Description
ST Notification of lapse