High Temperature Superconducting Inductor for Antenna Matching

Abstract : There is an Army need to improve the sensitivity of its radio frequency receivers. Towards this goal, the U.S. Army Research Laboratory is developing a high critical temperature superconducting spiral inductor and cryogenically cooled amplifier to demonstrate increased sensitivity. The capacitive antenna is impedance matched to the signal processing network via a superconducting spiral inductor that provides the lowest possible loss and best signal-to-noise ratio, thus allowing detection of weaker signals.