Wave transmission lines and networks – Resonators – Coaxial or shielded
Patent
1991-05-17
1993-06-08
Pascal, Robert J.
Wave transmission lines and networks
Resonators
Coaxial or shielded
333224, H01P 704
Patent
active
052183300
ABSTRACT:
A dielectric TEM resonator, whose resonant frequency is adjustable in both directions after being incorporated in a circuit, is disclosed. A first dielectric TEM resonator comprises a metal member disposed near an open end of a resonator body and coupled to an inner or outer conductor of the resonator body. The resonant frequency is adjusted by adjusting a distance between the open end and the metal member. A dielectric material of a second dielectric TEM resonator is partially exposed, and a dielectric board for mounting the resonator body is also exposed in a corresponding part to the exposed part of the dielectric material. The exposed part of the dielectric board is partially covered with a metal plate. The resonant frequency is adjusted by adjusting the covered area.
REFERENCES:
patent: 4271399 (1981-06-01), Morita
patent: 4434410 (1984-02-01), Miyake et al.
patent: 4583064 (1986-04-01), Makimoto et al.
patent: 4631506 (1986-12-01), Makimoto et al.
Omiya Kenzi
Sugawara Hideo
Suzuki Hiroshi
Ueda Hirokazu
Fujitsu Limited
Ham Seung
Pascal Robert J.
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