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Gain characteristics of SQUID-based RF amplifiers depending on device parameters

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Title
Gain characteristics of SQUID-based RF amplifiers depending on device parameters
Author(s)
Y. H. Lee; K. K. Yu; J. M. Kim; S. K. Lee; Y. Chong; S. J. Oh; Y. K. Semertzidis
Publication Date
2019-03
Journal
Progress in Superconductivity and Cryogenics, v.21, no.1, pp.10 - 14
Publisher
Korea Institute of Applied Superconductivity and Cryogenics
Abstract
Radio-frequency (RF) amplifiers based on direct current (DC) superconducting quantum interference device (SQUID) have low-noise performance for precision physics experiments. Gain curves of SQUID RF amplifiers depend on several parameters of the SQUID and operation conditions. We are developing SQUID RF amplifiers for application to measure very weak RF signals from ultra-low-temperature high-magnetic-field microwave cavity in axion search experiments. In this study, we designed, fabricated and characterized SQUID RF amplifiers with different SQUID parameters, such as number of input coil turn, shunt resistance value of the junction and coupling capacitance in the input coil, and compared the results. C. The Korea Institute of Applied Superconductivity and Cryogenics
URI
https://pr.ibs.re.kr/handle/8788114/5877
ISSN
1229-3008
Appears in Collections:
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > Journal Papers (저널논문)
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