Intermediate frequency band-pass filter

Details Intermediate frequency band-pass filter Intermediate frequency band-pass filter

1983-05-26

1984-12-25

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333176, 333177, 333212, H01P 120, H01P 701, H01P 709

Patent

active

044906994

ABSTRACT:
An intermediate frequency band-pass filter for providing a pass band, comprising a frame forming a hollow surrounded region, a shield plate mounted in the frame and dividing the hollow surrounded region into two spaces, the shield plate having a coupling window, and two resonators disposed respectively in the spaces and coupled through the coupling window, the shield plate having in an edge thereof a step serving as a trap which provides a frequency suppression capability in the vicinity of the pass band of the filter.

REFERENCES:
patent: 2819391 (1958-01-01), Reiches
patent: 3337791 (1967-08-01), Barton et al.
patent: 3621484 (1971-11-01), Shult

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