Title :
Low-noise SIS heterodyne receiver at 230 GHz
Author :
Davies, S.R. ; Little, L.T. ; Cunningham, C.T.
Author_Institution :
University of Kent at Canterbury, Electronic Engineering Laboratories, Canterbury, UK
Abstract :
A 230 GHz laboratory receiver has been built using a superconductor-insulator-superconductor (SIS) junction as the mixing element. The junction is mounted in 4:1 reduced-height waveguide, terminated at one end with a circular adjustable backshort. Recent results indicate a receiver noise temperature of TR ¿ 120 K (DSB).
Keywords :
mixers (circuits); radio receivers; radioastronomical techniques; radiotelescopes; solid-state microwave circuits; superconducting junction devices; 230 GHz; EHF; MM wave device; circular adjustable backshort; heterodyne receiver; millimetre wave operation; mixer; radioastronomy; radiotelescopes; reduced-height waveguide; superconductor-insulator-superconductor junction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870666
