Tunable resonator and an ultrahigh-frequency circuit comprising

Details Tunable resonator and an ultrahigh-frequency circuit comprising Tunable resonator and an ultrahigh-frequency circuit comprising

1981-07-27

1984-07-17

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333226, 333230, H01P 1201, H01P 704

Patent

active

044608780

ABSTRACT:
There is provided a resonator comprising principally a hollow metal finger integral with the wall of a guide or a cavity. A metal plunger, coated with a fine dielectric layer, of fairly low permittivity, is able to slide inside the hollow metal finger to cause the tuning frequency of the cavity or the susceptance coupled to the guide to be varied. This layer may be formed from Teflon.

REFERENCES:
patent: 3293644 (1966-12-01), Loos et al.
patent: 4207548 (1980-06-01), Graham et al.

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