Measurement of forward and reverse signal transfer coefficients for an rf‐biased SQUID
作者:
R. P. Giffard,
J. N. Hollenhorst,
期刊:
Applied Physics Letters
(AIP Available online 1978)
卷期:
Volume 32,
issue 11
页码: 767-769
ISSN:0003-6951
年代: 1978
DOI:10.1063/1.89888
出版商: AIP
数据来源: AIP
摘要:
Comprehensive measurements of the parameters characterizing an rf‐biased SQUID as a linear twoport are described. The behavior of the device corresponds in detail to the predictions of a recently published model of SQUID operation and is unexpectedly similar to that of a conventional reactive parametric amplifier. The measurements have been used to make the first reliable predictions of the noise temperature and optimum source impedance of an rf‐biased SQUID.
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