Resonating structure providing notch and bandpass filtering

Details Resonating structure providing notch and bandpass filtering Resonating structure providing notch and bandpass filtering

1997-07-02

1999-10-19

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333206, 3332191, 333235, H01P 120, H01P 710

Patent

active

059695846

ABSTRACT:
A combination notch/bandpass filter uses first and second adjacently-located cavities in the conductive housing to respectively provide a tunable, first-stage notch filter and a second-stage bandpass filter. An opening in a wall provides a passage for energy from the first cavity to the second cavity. In the first cavity, a resonator is located adjacent the opening, along with a notch-filter tuning member having one end arranged opposite the resonator and spaced therefrom by a distance to permit the wide end of a coupler to be suspended therebetween. An elongated portion of the coupler carries filtered energy from the first cavity to the second cavity.

REFERENCES:
patent: 4453146 (1984-06-01), Fiedziuszko
patent: 5684438 (1997-11-01), Cavalieri D'Oro et al.
patent: 5739733 (1998-04-01), Cameron

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