Correction of resonance frequency for RF amplifiers based on superconducting quantum interference device

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Title
Correction of resonance frequency for RF amplifiers based on superconducting quantum interference device
Author(s)
Yong Ho Lee; K. K. Yu; J. M. Kim; S. K. Lee; Y. Chong; S. J. Oh; Y. K. Semertzidis
Publication Date
2018-12
Journal
Progress in Superconductivity and Cryogenics, v.20, no.4, pp.6 - 10
Publisher
Korea Institute of Applied Superconductivity and Cryogenics
Abstract
Low-noise amplifiers in the radio-frequency (RF) band based on the direct current (DC) superconducting quantum interference device (SQUID) can be used for quantum-limited measurements in precision physics experiments. For the prediction of peak-gain frequency of these amplifiers, we need a reliable design formula for the resonance frequency of the microstrip circuit. We improved the formula for the resonance frequency, determined by parameters of the DC SQUID and the input coil, and compared the design values with experimental values. The proposed formula showed much accurate results than the conventional formula. Minor deviation of the experimental results from the theory can be corrected by using the measured geometrical parameters of the input coil line. (c).copyright 2013 PSAC
URI
https://pr.ibs.re.kr/handle/8788114/5369
ISSN
1229-3008
Appears in Collections:
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > Journal Papers (저널논문)
Files in This Item:
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