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dc SQUID as a tuned radiofrequency amplifier

Conference ·
OSTI ID:6490394

The design criteria for a tuned radiofrequency amplifier based on a dc SQUID are briefly discussed. A practical amplifier involving a planar dc SQUID with a 4-1/4-turn spiral input coil and operated at 4.2/sup 0/K had a gain of 18.6 +- 0.5 db and a noise temperature of 1.7 +- 0.5/sup 0/K at 93 MHz. These results are in satisfactory agreement with predicted values.

Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6490394
Report Number(s):
LBL-18362; CONF-840937-8; ON: DE85000701
Country of Publication:
United States
Language:
English