Noise properties of cryogenic microwave amplifiers and relevance to oscillator frequency stabilization

Eugene Ivanov, Stephen Parker, Romain Bara-Maillet, Michael Tobar

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We studied noise properties of a new generation of energy-efficient microwave low-noise high-electron-mobilitytransistor amplifiers. The noise measurements were conducted both at room and cryogenic temperature with the amplifiers strongly decoupled from the environment to reduce the influence of ambient temperature fluctuations on their phase noise spectra. Our results show the importance of keeping the amplifiers operating in the small-signal regime if they are to be used for applications such as precision electromagnetic measurements and oscillator frequency stabilization. © 1986-2012 IEEE.
Original languageEnglish
Pages (from-to)575-581
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume61
Issue number4
DOIs
Publication statusPublished - 2014

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