Dielectric resonator

Details Dielectric resonator Dielectric resonator

1985-02-11

1986-04-01

Nussbaum, Marvin L.

Wave transmission lines and networks

Resonators

Temperature compensated

333219, 333235, H01P 710

Patent

active

045801169

ABSTRACT:
A method and means for producing a zero temperature coefficient for providing frequency stabilization as well as adjusting the frequency at a particular temperature of a dielectric resonator comprised of a cylindrical dielectric resonator element mounted on a substrate and having a dielectric disc affixed to the top of the resonator element. A zero temperature coefficient is obtained by selectively choosing the thickness of the dielectric disc depending upon the temperature coefficients of the constituent material of both the disc and resonator element. The operating frequency at a given temperature is furthermore adjusted by including two mutually contiguous patterns of metallization on the top surface of the resonator element and the bottom surface of the dielectric disc and thereafter rotating the disc so that a predetermined percentage of overlap between the two patterns exists.

REFERENCES:
patent: 3798578 (1974-03-01), Konishi et al.
patent: 3919672 (1975-11-01), Plourde
patent: 3924208 (1975-12-01), Plourde
"A Proposal of a New Dielectric Resonator Construction for MIC's", Y. Shia, et al., IEEE Transactions on Microwave Theory and Techniques, vol. MTT-31, No. 7, Jul. 1983, pp. 527-532. This publication discloses a dielectric resonator structure of the type from which the subject invention was developed.

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