Circular waveguide dual-mode filter

Details Circular waveguide dual-mode filter Circular waveguide dual-mode filter

1997-05-20

1999-03-23

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333212, H01P 1208

Patent

active

058865942

ABSTRACT:
The invention relates to a circular waveguide dual-mode filter comprising at least one element for adjusting a filter parameter. Said element is an elliptical waveguide portion disposed perpendicularly to the longitudinal axis of said circular waveguide. The filter may be coupled to an inlet circular waveguide and to an outlet circular waveguide.

REFERENCES:
patent: 3697898 (1972-10-01), Blachier et al.
patent: 4028651 (1977-06-01), Leetmaa
patent: 4030051 (1977-06-01), Shimizu et al.
patent: 4241323 (1980-12-01), Griffin et al.
patent: 5349316 (1994-09-01), Sterns
Chang, Hsin-Chin et al., "Evanescent-Mode Coupling of Dual-Mode Rectangular Waveguide Filters ", IEEE Transactions on Microwave Theory and Techniques, Vol. 39, No. 8, Aug. 1991, pp. 1307-1312.

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