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Title:
MULTI-JUNCTION WAVEGUIDE CIRCULATOR WITHOUT INTERNAL TRANSITIONS
Document Type and Number:
WIPO Patent Application WO2003041213
Kind Code:
A3
Abstract:
An improved multi-junction waveguide circulator that eliminates the transitions to dielectric transformers and air-filled waveguides between ferrite elements is described. The waveguide circulator in accordance with the invention can be implemented in variations from a minimum of two ferrite circulator elements held in close proximity to one another to any number of ferrite elements as required to achieve the desired isolation performance or to create a switch matrix with any combination of input and output ports. The waveguide circulator in accordance with the invention eliminates the transitions between adjacent ferrite elements and thus reduces losses, component size, and mass.

Inventors:
KROENING ADAM M
Application Number:
PCT/US2002/035655
Publication Date:
September 04, 2003
Filing Date:
November 07, 2002
Export Citation:
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Assignee:
EMS TECHNOLOGIES INC (US)
International Classes:
H01P1/39; (IPC1-7): H01P1/39
Foreign References:
US3582831A1971-06-01
US4697158A1987-09-29
US4058780A1977-11-15
US3339158A1967-08-29
US3806837A1974-04-23
US3221255A1965-11-30
US3710280A1973-01-09
US5608361A1997-03-04
US3350663A1967-10-31
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 14 5 March 2001 (2001-03-05)
PATENT ABSTRACTS OF JAPAN vol. 005, no. 070 (E - 056) 12 May 1981 (1981-05-12)
PATENT ABSTRACTS OF JAPAN vol. 003, no. 009 (E - 086) 26 January 1979 (1979-01-26)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22)
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