Title :
Squid linear amplifier circuit simulations
Author :
Gershenson, M. ; Hastings, R. ; Schneider, R. ; Sweeny, M. ; Sorensen, E.
Author_Institution :
Sperry Corporation, Computer Systems, St. Paul, MN
fDate :
9/1/1983 12:00:00 AM
Abstract :
This paper presents numerical simulations of a single stage of a linear SQUID amplifier. The amplifier stage is fabricated in thin film technology, and consists of two asymmetric SQUIDs placed in the push-pull configuration. It was found that the Q of the tank circuit formed by SQUID inductance and a parasitic strip-line capacitance must be reduced to unity to avoid hysteretic operation. A load line analysis has determined the amplifier operating point and SQUID inductance which yield optimum linearity.
Keywords :
Josephson device amplifiers; Circuit simulation; Frequency; Hysteresis; Inductance; Magnetic flux; Numerical simulation; Parasitic capacitance; Resistors; SQUIDs; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1983.1062608
