INTEGRATED HIGH-TEMPERATURE SUPERCONDUCTOR MICROWAVE SYSTEM CRYOCOOLER DEMONSTRATOR

Eight years after the discovery of high temperature superconductors, work is now focused on system development and applications. This paper describes the design and development of a cryogenic microwave receiver which forms part of a stand-alone cooled unit operating at 60K. The receiver comprises a high temperature superconducting (HTS) 11 GHz filter, a mixer and a 10 GHz HTS cavity-stabilized local oscillator This is integrated with a Stirling cycle cooler and forms part of a demonstrator The cryogenic receiver shows significantly improved performance when compared with equivalent metal systems operating at room temperature.