Miniaturized dielectric resonator filters and method of operatio

Details Miniaturized dielectric resonator filters and method of operatio Miniaturized dielectric resonator filters and method of operatio

1993-12-03

1996-03-12

Lee, Benny T.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

High frequency waveguides, resonators, electrical networks,...

505700, 505866, 333202, 3332191, 333 99S, H01P 710, H01P 120, H01B 1206

Patent

active

054987717

ABSTRACT:
Microwave bandpass filters contain dielectric resonators mounted in dielectric blocks, which are in turn mounted in cavities. There can be more than one dielectric resonator per cavity. Significant size reduction has been achieved over prior art filters. The filters can be operated at cryogenic temperatures and since the results attainable at cryogenic temperatures are repeatable, the filters can be tuned at cryogenic temperatures and returned to room temperature before being returned to cryogenic temperatures for operating purposes. When operated at cryogenic temperatures, the filters contain shorting plates having high temperature superconducting material thereon. The filters can be constructed with various configurations and can be operated in either a single mode or a dual-mode. Previous single mode or dual-mode dielectric resonator filters are larger in size and mass than the filters of the present application.

REFERENCES:
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patent: 4939489 (1990-07-01), Crueble et al.
patent: 5083102 (1992-01-01), Zaki
patent: 5179074 (1993-01-01), Fiedziuszko et al.
Pao, Chia-Shan, et al; "A Superconducting--Dielectric Resonator at W-Band", 1988 IEEE MTT-S Digest; vol. 1, 0-5 25-27 May 1988; New York, New York; pp. 457-458.

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