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GB1455084A - Encapsulated microstrip circulator with mode elimination means - Google Patents

Encapsulated microstrip circulator with mode elimination means

Info

Publication number
GB1455084A
GB1455084A GB356974A GB356974A GB1455084A GB 1455084 A GB1455084 A GB 1455084A GB 356974 A GB356974 A GB 356974A GB 356974 A GB356974 A GB 356974A GB 1455084 A GB1455084 A GB 1455084A
Authority
GB
United Kingdom
Prior art keywords
junction
circulator
capsule
central
wall
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.)
Expired
Application number
GB356974A
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of GB1455084A publication Critical patent/GB1455084A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/38—Circulators
    • H01P1/383—Junction circulators, e.g. Y-circulators
    • H01P1/387—Strip line circulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion

Landscapes

  • Non-Reversible Transmitting Devices (AREA)

Abstract

1455084 Junction circulators RCA CORPORATION 25 Jan 1974 [30 April 1973] 03569/74 Heading H1W In order to prevent propagation of transverse electric and magnetic modes in a conductively enclosed microstrip junction circulator, a conductive connection is provided between the centre of the junction and a wall of the enclosure. As shown, a metal post 51 is provided between the central planar resonator 41 of the junction and a wall 23 of metal capsule 13 enclosing the circulator. The circulator comprises an alumina substrate 36 bearing strip branch-conductors 33a, 33b, 33c and a ground plane 31 which rests on the base of the capsule. A central circular aperture in the substrate accommodates a ferrite element 35 which supports the junction elements 41, 43a, 43b, 43c. Soldered bridge pieces 71 connect the junction to the branches 33. A central aperture in the base of the capsule accommodates a magnet 27.
GB356974A 1973-04-30 1974-01-25 Encapsulated microstrip circulator with mode elimination means Expired GB1455084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00355716A US3831114A (en) 1973-04-30 1973-04-30 Encapsulated microstrip circulator with mode elimination means

Publications (1)

Publication Number Publication Date
GB1455084A true GB1455084A (en) 1976-11-10

Family

ID=23398543

Family Applications (1)

Application Number Title Priority Date Filing Date
GB356974A Expired GB1455084A (en) 1973-04-30 1974-01-25 Encapsulated microstrip circulator with mode elimination means

Country Status (7)

Country Link
US (1) US3831114A (en)
JP (1) JPS539932B2 (en)
CA (1) CA994877A (en)
DE (1) DE2404168A1 (en)
FR (1) FR2227653B1 (en)
GB (1) GB1455084A (en)
IT (1) IT1006169B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320138A (en) * 1996-12-09 1998-06-10 Racal Mesl Ltd Microwave circulators and isolators

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270106A (en) * 1979-11-07 1981-05-26 The United States Of America As Represented By The Secretary Of The Air Force Broadband mode suppressor for microwave integrated circuits
IT1137411B (en) * 1981-03-05 1986-09-10 Italtel Spa CIRCUIT FOR VERY HIGH FREQUENCY SIGNALS INCLUDING AT LEAST ONE MICROSTRIP
US6851674B2 (en) * 1998-04-14 2005-02-08 Mikohn Gaming Corporation Pachinko stand-alone and bonusing game with displayed targets
JP3414355B2 (en) * 2000-03-31 2003-06-09 株式会社村田製作所 Non-reciprocal circuit device and communication device
JP3852434B2 (en) * 2002-12-12 2006-11-29 株式会社村田製作所 Non-reciprocal circuit device and communication device
US20050100107A1 (en) * 2003-11-12 2005-05-12 Head Thomas W. Composite carrier peak limiting method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174116A (en) * 1963-05-15 1965-03-16 Hughes Aircraft Co Trough line microstrip circulator with spaced ferrite surrounding transverse conductive rod
US3422375A (en) * 1967-02-24 1969-01-14 Bell Telephone Labor Inc Microwave power dividing network
US3517340A (en) * 1968-12-23 1970-06-23 Bell Telephone Labor Inc Circulator having conductive post capacitively coupled between first and second transmission line conductors for broadbanding purposes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320138A (en) * 1996-12-09 1998-06-10 Racal Mesl Ltd Microwave circulators and isolators
GB2320138B (en) * 1996-12-09 2001-06-20 Racal Mesl Ltd Microwave circulators and isolators

Also Published As

Publication number Publication date
FR2227653A1 (en) 1974-11-22
DE2404168A1 (en) 1974-11-21
JPS539932B2 (en) 1978-04-10
FR2227653B1 (en) 1977-09-09
JPS5011157A (en) 1975-02-05
CA994877A (en) 1976-08-10
IT1006169B (en) 1976-09-30
US3831114A (en) 1974-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee