Quantum Sensitivity: Superconducting Quantum Interference Filter-Based Microwave Receivers

摘要

Several critical applications of superconducting electronics that have been successful-ly commercialized are the Josephson voltage standard, superconducting quantum interference device (SQUID) magnetometers, superconductor?insulator?supercon-ductor (SIS) mixers, and analog filters [1]?[4]. More recently, digital and mixed-sig-nal circuits based on rapid single flux quantum (RSFQ) logic have also made an impression on the high-speed/high-frequency electronics application markets [5], [6].