Frequency-adjustable coaxial dielectric resonator and filter usi

Details Frequency-adjustable coaxial dielectric resonator and filter usi Frequency-adjustable coaxial dielectric resonator and filter usi

1983-07-15

1986-12-23

LaRoche, Eugene R.

Wave transmission lines and networks

Resonators

Coaxial or shielded

333226, 333207, H01P 704

Patent

active

046315063

ABSTRACT:
A coaxial dielectric resonator for VHF and/or UHF band comprising a generally cylindrical dielectric having inner surface and outer surface. The inner and outer surfaces of the dielectric are respectively covered by outer and inner conductors and these conductors are connected at one end of the dielectric. An adjusting screw for adjusting resonance frequency is provided at the other end of the dielectric which is covered by a lid while holding a gap between the adjusting screw and the lid. A microwave filter using a plurality of the coaxial dielectric resonator is further described.

REFERENCES:
patent: 2245138 (1941-06-01), Zottu
patent: 3703689 (1972-11-01), McAtee
patent: 4028652 (1977-06-01), Wakino et al.
patent: 4035749 (1977-07-01), Slocum et al.
patent: 4342972 (1982-08-01), Nishikawa et al.
patent: 4398164 (1983-08-01), Nishikawa et al.
patent: 4434410 (1984-02-01), Miyake et al.
patent: 4506241 (1985-03-01), Makimoto et al.
Uwano, Tomoki, "Ceramic-Filled Resonator Cuts Costs of Radio-Telephone Filters", Electronics, Jul. 14, 1983, pp. 129-131.

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