Foreshortened coaxial resonators

Details Foreshortened coaxial resonators Foreshortened coaxial resonators

1980-03-04

1981-12-22

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333207, 333224, H01P 1202, H01P 1205, H01P 704

Patent

active

043073573

ABSTRACT:
A coaxial-structure filter which utilizes a flat depression machined in the bottom surface of the filter cover as the resonant frequency determining element in a resonant cavity is disclosed. The depression is directly above the cavity resonator post when the cover is installed and provides a lumped capacitance from the post to the cover. The resonator post is machined flush with the resonator's top wall thereby placing the critical mechanical dimensions associated with the frequency determining elements in a more desirable location than prior methods (i.e., in the filter cover).

REFERENCES:
patent: 3277406 (1966-10-01), Ocker
patent: 3348173 (1967-10-01), Matthaei et al.
patent: 4037182 (1977-07-01), Burnett et al.
patent: 4216448 (1980-08-01), Kasuga et al.

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