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arXiv · 2303.15363

Power-to-Frequency Conversion in Cryogenic Sapphire Resonators

Eugene Ivanov·Michael Tobar
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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 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.

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Eugene Ivanov, Michael Tobar. 2023-03-15. Power-to-Frequency Conversion in Cryogenic Sapphire Resonators. https://doi.org/10.1109/lmwt.2023.3264975

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