A 200dB FoM 4-to-5GHz Cryogenic Oscillator with an Automatic Common-Mode Resonance Calibration for Quantum Computing Applications

Conference paper (2020)

Authors

J. Gong OLD QCD/Charbon Lab
Yue Chen Student
F. Sebastiano (OLD)Applied Quantum Architectures
Fabio Sebastiano (OLD)Applied Quantum Architectures
E. Charbon-Iwasaki-Charbon Swiss Federal Institute of Technology, InteI
Masoud Babaie Electronics - EEMCS
M. Babaie Electronics - EEMCS
Research Group
OLD QCD/Charbon Lab
Copyright: © 2020 J. Gong, Yue Chen, F. Sebastiano, E. Charbon-Iwasaki-Charbon, M. Babaie
DOI: https://doi.org/10.1109/ISSCC19947.2020.9062913
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Published Date

2020

Language

English

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Research Group

OLD QCD/Charbon Lab

Abstract

Low-power, low phase noise (PN) cryogenic frequency generation is required for the control electronics of quantum computers. To avoid limiting the performance of quantum bits, the frequency noise of a PLL should be < 1.9 kHz rms [1]. However, it is challenging for RF oscillators, as the heart of frequency synthesizers to satisfy such a requirement at cryogenic temperatures (CT), since 1) white noise in nanoscale CMOS devices is limited by temperature-independent shot noise; 2) the transistor 1/f noise is much higher, resulting in the oscillator PN being dominated by the 30dB/dec region [1].

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