TUNING CIRCUIT USING TUNNEL JUNCTION ELEMENT AND SUPERCONDUCTING INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To incorporate frequency characteristics having a small reflection coefficient in a wide frequency band in a tuning circuit using a tunnel junction element and its superconducting integrated circuit.;SOLUTION: In the tuning circuit for connecting a signal source to a tunnel junction element, the junction element is connected in a multiple stage connection, characteristic impedance of the adjacent junction elements are different, and the signal source is impedance matched with the junction element located most separated from the signal source.;COPYRIGHT: (C)2004,JPO