Power-to-Frequency Conversion in Cryogenic Sapphire Resonators

Research output: Contribution to journalArticlepeer-review

Abstract

We studied how the cryogenic sapphire resonator responds to fast variations of the dissipated microwave power. The experiments were carried out with sapphire resonators cooled to 6 K at frequencies around 11 GHz. We found that the power-to-frequency conversion of the resonator depends on Fourier frequency as the transfer function of the 1st-order low-pass filter with corner frequency close to the resonator’s loaded half-bandwidth. Having measured the power-to-frequency conversion of the cryogenic sapphire resonator, we predicted the phase noise of the microwave oscillator based on such resonator.
Original languageEnglish
Pages (from-to)1090-1093
Number of pages3
JournalIEEE Microwave and Wireless Technology Letters
Volume33
Issue number7
DOIs
Publication statusPublished - Jul 2023

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