Dielectric resonator tunable via a change in gas pressure

Details Dielectric resonator tunable via a change in gas pressure Dielectric resonator tunable via a change in gas pressure

1997-06-09

1999-08-31

Lee, Benny

Wave transmission lines and networks

Automatically controlled systems

333235, H03J 704

Patent

active

059458887

ABSTRACT:
A dielectric resonator encased within a pressure enclosure establishes the operating frequency of a microwave circuit. The enclosure is supplied with a pressurized gas and the pressure within the enclosure is varied as a function of the deviation of the operating frequency from a desired value. For more precise control the enclosure is preferably immersed in a cryogenic cooling system.

REFERENCES:
patent: 3525953 (1970-08-01), Halverson
patent: 5052183 (1991-10-01), Koscica et al.
Arams, F.R., et al; "Wide Range Electronic Tuning of Microwave Cavities"; Proceedings of the IRE; vol. 43, No. 9; Sep. 1995; pp. 1102-1110.
Nowogrodzki M.; "Control of Resonant Cavity Frequency by Gas Pressure"; RCA Technical Notes; TN 125; Mar. 1958.
Morris E.C. et al; "Microwave Absorption by Gas Mixtures of at Pressures up to Several Hundred Bars"; Australian Journal of Physics; vol. 23, No. 3; 1970; pp. 335-349.

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