Radiofrequency amplifier based on a dc superconducting quantum interference device
作者： Claude Hilbert , John Clarke
DOI: 10.1063/1.94448
关键词:
摘要: A low noise radiofrequency amplifier (10), using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The (11) and an coil (12) are maintained at superconductivity temperatures in superconducting shield (13), with inductively coupled to ring (17) of (11). signal from outside (13) is applied (12), amplified developed across transmitted exteriorly (13). power gain 19.5±0.5 dB has been achieved temperature 1.0±0.4 K. frequency 100 MHz.
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