Odd order elliptic waveguide cavity filters

Details Odd order elliptic waveguide cavity filters Odd order elliptic waveguide cavity filters

1985-12-03

1987-02-17

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333209, 333212, 333230, 333231, H01P 1207, H01P 1208, H01P 706

Patent

active

046443053

ABSTRACT:
An odd order bandpass filter has at least one cavity resonating at its resonant frequency in three independent orthogonal modes. The filter has at least one feedback coupling that is made to resonate and change sign at a center frequency. When the filter has two cavities, one being a triple cavity and the other being a dual mode cavity, the filter can be operated to achieve an elliptic function response. Also, the filter of the present invention can achieve a weight and volume reduction when compared to six-pole dual mode filters.

REFERENCES:
patent: 2890421 (1959-06-01), Currie
patent: 4410865 (1983-10-01), Young et al.

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