EP1730808A4 - Transformer-free waveguide circulator - Google Patents

Transformer-free waveguide circulator

Info

Publication number
EP1730808A4
EP1730808A4 EP05726000A EP05726000A EP1730808A4 EP 1730808 A4 EP1730808 A4 EP 1730808A4 EP 05726000 A EP05726000 A EP 05726000A EP 05726000 A EP05726000 A EP 05726000A EP 1730808 A4 EP1730808 A4 EP 1730808A4
Authority
EP
European Patent Office
Prior art keywords
transformer
waveguide circulator
free waveguide
free
circulator
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
EP05726000A
Other languages
German (de)
French (fr)
Other versions
EP1730808A1 (en
Inventor
Adam Kroening
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.)
EMS Technologies Canada Ltd
Original Assignee
EMS Technologies Inc
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 EMS Technologies Inc filed Critical EMS Technologies Inc
Publication of EP1730808A1 publication Critical patent/EP1730808A1/en
Publication of EP1730808A4 publication Critical patent/EP1730808A4/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
EP05726000A 2004-03-18 2005-03-18 Transformer-free waveguide circulator Ceased EP1730808A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55431604P 2004-03-18 2004-03-18
PCT/US2005/009401 WO2005114775A1 (en) 2004-03-18 2005-03-18 Transformer-free waveguide circulator

Publications (2)

Publication Number Publication Date
EP1730808A1 EP1730808A1 (en) 2006-12-13
EP1730808A4 true EP1730808A4 (en) 2008-09-03

Family

ID=35428634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05726000A Ceased EP1730808A4 (en) 2004-03-18 2005-03-18 Transformer-free waveguide circulator

Country Status (3)

Country Link
EP (1) EP1730808A4 (en)
CA (1) CA2560555C (en)
WO (1) WO2005114775A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8957741B2 (en) * 2013-05-31 2015-02-17 Honeywell International Inc. Combined-branched-ferrite element with interconnected resonant sections for use in a multi-junction waveguide circulator
US9263783B2 (en) 2014-01-21 2016-02-16 Honeywell International Inc. Waveguide circulator having stepped floor/ceiling and quarter-wave dielectric transformer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935548A (en) * 1974-06-04 1976-01-27 The Washington University Wide-band microwave circulator
JPS51117853A (en) * 1975-04-09 1976-10-16 Nec Corp Non-reversible circuit
JPS52152145A (en) * 1976-06-14 1977-12-17 Mitsubishi Electric Corp Latching circulator
US4697158A (en) * 1986-04-15 1987-09-29 Electromagnetic Sciences, Inc. Reduced height waveguide circulator
EP0293210A2 (en) * 1987-05-27 1988-11-30 Varian Associates, Inc. Millimeter wave circulator
US20030107447A1 (en) * 2001-11-07 2003-06-12 Ems Technologies, Inc. Multi-junction waveguide circulator without internal transitions
US20040041647A1 (en) * 2002-08-09 2004-03-04 Alps Electric Co., Ltd. Nonreciprocal circuit element having excellent signal transmission efficiency and communication apparatus using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341789A (en) * 1965-04-19 1967-09-12 Bendix Corp Latching ferrite circulator having the ferrite symmetrically located with respect toeach rf signal carrying arm
US4058780A (en) * 1976-08-02 1977-11-15 Microwave Development Labs., Inc. Waveguide circulator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935548A (en) * 1974-06-04 1976-01-27 The Washington University Wide-band microwave circulator
JPS51117853A (en) * 1975-04-09 1976-10-16 Nec Corp Non-reversible circuit
JPS52152145A (en) * 1976-06-14 1977-12-17 Mitsubishi Electric Corp Latching circulator
US4697158A (en) * 1986-04-15 1987-09-29 Electromagnetic Sciences, Inc. Reduced height waveguide circulator
EP0293210A2 (en) * 1987-05-27 1988-11-30 Varian Associates, Inc. Millimeter wave circulator
US20030107447A1 (en) * 2001-11-07 2003-06-12 Ems Technologies, Inc. Multi-junction waveguide circulator without internal transitions
US20040041647A1 (en) * 2002-08-09 2004-03-04 Alps Electric Co., Ltd. Nonreciprocal circuit element having excellent signal transmission efficiency and communication apparatus using same

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MEINKE, GUNDLACH: "Taschenbuch der Hochfrequenztechnik", vol. 2, 1986, SPRINGER-VERLAG, ISBN: 3-540-15395-0, pages: L51 *
See also references of WO2005114775A1 *
TRIDELTA GMBH, HERMSDORF, GERMANY: "Definitionen und Erläuterungen", 31 January 2012 (2012-01-31), XP055018033, Retrieved from the Internet <URL:http://www.tridelta.de/viomatrix/imgs/download/definitionen_und_erl_uterungen.pdf> [retrieved on 20120131] *
ZAAL: "Some Expermiental Results on the X-Band Junction Circulator", TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 13, no. 3, 1 May 1965 (1965-05-01), pages 382 - 383, XP002489112 *

Also Published As

Publication number Publication date
CA2560555C (en) 2012-12-18
CA2560555A1 (en) 2005-12-01
WO2005114775A1 (en) 2005-12-01
EP1730808A1 (en) 2006-12-13

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