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WO2002067361A8 - Microwave circulator - Google Patents

Microwave circulator

Info

Publication number
WO2002067361A8
WO2002067361A8 PCT/SE2001/002814 SE0102814W WO02067361A8 WO 2002067361 A8 WO2002067361 A8 WO 2002067361A8 SE 0102814 W SE0102814 W SE 0102814W WO 02067361 A8 WO02067361 A8 WO 02067361A8
Authority
WO
WIPO (PCT)
Prior art keywords
circulator
waveguides
centre section
microwave circulator
constriction
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.)
Ceased
Application number
PCT/SE2001/002814
Other languages
French (fr)
Other versions
WO2002067361A1 (en
Inventor
Lennart Mattsson
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.)
Saab AB
Original Assignee
Saab AB
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 Saab AB filed Critical Saab AB
Priority to EP01273790A priority Critical patent/EP1368853A1/en
Publication of WO2002067361A1 publication Critical patent/WO2002067361A1/en
Anticipated expiration legal-status Critical
Publication of WO2002067361A8 publication Critical patent/WO2002067361A8/en
Ceased 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
    • H01P1/39—Hollow waveguide circulators

Landscapes

  • Non-Reversible Transmitting Devices (AREA)
  • Transceivers (AREA)

Abstract

An waveguide circulator including at least three waveguides and a centre section. The waveguides are cross-coupled in the centre section. In the centre section a ferrite element is arranged. The circulator has means for magnetising the element. One of the waveguides has at least one constriction element in its interior. The constriction element is arranged to reduce leakage signals arising from imperfections in the circulator.
PCT/SE2001/002814 2001-02-21 2001-12-19 Microwave circulator Ceased WO2002067361A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01273790A EP1368853A1 (en) 2001-02-21 2001-12-19 Microwave circulator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100574A SE518711C2 (en) 2001-02-21 2001-02-21 Mikrovågscirkulator
SE0100574-3 2001-02-21

Publications (2)

Publication Number Publication Date
WO2002067361A1 WO2002067361A1 (en) 2002-08-29
WO2002067361A8 true WO2002067361A8 (en) 2004-04-01

Family

ID=20283063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/002814 Ceased WO2002067361A1 (en) 2001-02-21 2001-12-19 Microwave circulator

Country Status (3)

Country Link
EP (1) EP1368853A1 (en)
SE (1) SE518711C2 (en)
WO (1) WO2002067361A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0127188D0 (en) * 2001-11-13 2002-01-02 Quasar Microwave Tech Diplexer
US7242263B2 (en) 2002-11-07 2007-07-10 Ems Technologies, Inc. Transformer-free waveguide circulator
US7683731B2 (en) 2005-12-20 2010-03-23 Ems Technologies, Inc. Ferrite waveguide circulator with thermally-conductive dielectric attachments
US7561003B2 (en) 2007-10-31 2009-07-14 Ems Technologies, Inc. Multi-junction waveguide circulator with overlapping quarter-wave transformers
US9263783B2 (en) 2014-01-21 2016-02-16 Honeywell International Inc. Waveguide circulator having stepped floor/ceiling and quarter-wave dielectric transformer
CN113258237B (en) * 2021-03-30 2022-09-20 武汉凡谷电子技术股份有限公司 Dielectric waveguide circulators and isolators
CN113839164B (en) * 2021-10-15 2022-08-12 散裂中子源科学中心 A high-power Y-junction waveguide circulator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236448A (en) * 1975-09-17 1977-03-19 Fujitsu Ltd Waveguide tube branch type circulator
US4697158A (en) * 1986-04-15 1987-09-29 Electromagnetic Sciences, Inc. Reduced height waveguide circulator
US5266909A (en) * 1992-08-05 1993-11-30 Harris Corporation Waveguide circulator
US5608361A (en) * 1995-05-15 1997-03-04 Massachusetts Institute Of Technology Advanced ring-network circulator

Also Published As

Publication number Publication date
SE518711C2 (en) 2002-11-12
EP1368853A1 (en) 2003-12-10
SE0100574L (en) 2002-08-22
WO2002067361A1 (en) 2002-08-29
SE0100574D0 (en) 2001-02-21

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