NASA NTRS · 19960018812
Temperature-Compensated Sapphire Microwave Resonator
Abstract
Sapphire-dielectric-ring microwave resonator operating in "whispering-gallery" electromagnetic mode features differential-thermal-expansion design providing temperature compensation for ultrahigh frequency stability. Designed to minimize frequency fluctuations caused by temperature fluctuations at normal temperature equal to or even somewhat greater than temperature of liquid nitrogen. Ancillary equipment needed for operation smaller and less expensive, and liquid nitrogen used as coolant.
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Dick, G. John, Santiago, David G.. 1996-03-01. Temperature-Compensated Sapphire Microwave Resonator. https://ntrs.nasa.gov/citations/19960018812
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