Pseudo-elliptical filter for the millimeter band using waveguide

Details Pseudo-elliptical filter for the millimeter band using waveguide Pseudo-elliptical filter for the millimeter band using waveguide

1996-12-11

1998-09-01

Ham, Sgungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333212, 29600, H01P 1208

Patent

active

058016066

ABSTRACT:
A pseudo-elliptical filter includes positively coupled resonant cavities, the signal input and the signal output of each cavity being at 90.degree. to each other. At least one retro-coupling of signal between two of said cavities is constituted by a waveguide. Applications include pseudo-elliptical filters operating in the millimeter band.

REFERENCES:
patent: 2749523 (1956-06-01), Dishal
patent: 4167713 (1979-09-01), Pfitzenmaier
patent: 4360793 (1982-11-01), Rhodes et al.
patent: 4772863 (1988-09-01), Rosenberg et al.
patent: 5608363 (1997-03-01), Cameron et al.
corresponding to JP-A-58 187001 (Nippon Denki K.K.) dated Nov. 1, 1983. corresponding to JP-A-52 100955 (Nippon Denki K.K.) dated 24 Aug. 1977.

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