FR2419613A1 - Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface - Google Patents

Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface

Info

Publication number
FR2419613A1
FR2419613A1 FR7806430A FR7806430A FR2419613A1 FR 2419613 A1 FR2419613 A1 FR 2419613A1 FR 7806430 A FR7806430 A FR 7806430A FR 7806430 A FR7806430 A FR 7806430A FR 2419613 A1 FR2419613 A1 FR 2419613A1
Authority
FR
France
Prior art keywords
stubs
dielectric substrate
metal backing
phase velocity
line coupling
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
FR7806430A
Other languages
French (fr)
Other versions
FR2419613B1 (en
Inventor
Daniel Bedoure
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7806430A priority Critical patent/FR2419613A1/en
Publication of FR2419613A1 publication Critical patent/FR2419613A1/en
Application granted granted Critical
Publication of FR2419613B1 publication Critical patent/FR2419613B1/fr
Granted 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
    • H01P5/186—Lange couplers

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Wide band phase velocity compensated line coupling is for UHF use. The coupling can be unidirectional with a 20db rejection. Typically the pass band fmax/fmin=3 and the standing wave ratio = 1.38. Compensation is by one or two short inward facing studs (52, 53) extending from parallel strip lines (2, 3) on the surface of a dielectric substrate (1) which has a complete metal backing surface. The length of the stub in the direction of propagation is lambda/40. the space (e) between the stubs determining the amount of phase compensation. The studs can be introduced at the entrance to a Schiffman cell.
FR7806430A 1978-03-07 1978-03-07 Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface Granted FR2419613A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7806430A FR2419613A1 (en) 1978-03-07 1978-03-07 Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7806430A FR2419613A1 (en) 1978-03-07 1978-03-07 Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface

Publications (2)

Publication Number Publication Date
FR2419613A1 true FR2419613A1 (en) 1979-10-05
FR2419613B1 FR2419613B1 (en) 1980-09-12

Family

ID=9205428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806430A Granted FR2419613A1 (en) 1978-03-07 1978-03-07 Wideband phase velocity compensated UHF line coupling - by short inward pointing stubs on dielectric substrate with metal backing surface

Country Status (1)

Country Link
FR (1) FR2419613A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376921A (en) * 1981-04-28 1983-03-15 Westinghouse Electric Corp. Microwave coupler with high isolation and high directivity
EP0518423A1 (en) * 1991-06-11 1992-12-16 FOR.E.M. S.p.A. Microstrip coupler with maximal directivity
WO1993005543A1 (en) * 1991-09-03 1993-03-18 Motorola, Inc. Radio equipment directional coupler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063026A (en) * 1960-05-26 1962-11-06 Narda Microwave Corp Coaxial hybrid junctions
BE671586A (en) * 1964-10-30 1966-02-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063026A (en) * 1960-05-26 1962-11-06 Narda Microwave Corp Coaxial hybrid junctions
BE671586A (en) * 1964-10-30 1966-02-14

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376921A (en) * 1981-04-28 1983-03-15 Westinghouse Electric Corp. Microwave coupler with high isolation and high directivity
EP0518423A1 (en) * 1991-06-11 1992-12-16 FOR.E.M. S.p.A. Microstrip coupler with maximal directivity
US5243305A (en) * 1991-06-11 1993-09-07 Forem S.P.A. Method to make microwave coupler with maximal directivity and adaptation and relevant microstrip coupler
WO1993005543A1 (en) * 1991-09-03 1993-03-18 Motorola, Inc. Radio equipment directional coupler
US5212815A (en) * 1991-09-03 1993-05-18 Motorola, Inc. Radio equipment directional coupler
GB2266008B (en) * 1991-09-03 1995-06-28 Motorola Inc Radio equipment directional coupler

Also Published As

Publication number Publication date
FR2419613B1 (en) 1980-09-12

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