Title :
A Superconducting Tunnel Junction Receiver for 230 GHz
Abstract :
The performance of superconducting tunnel junctions as high-frequency receivers is discussed. Low-noise mixing in superconductor insulator-superconductor (SIS) quasi-particle tunnel junctions has been seen for frequencies up to 400 GHz. Such mixers have the significant advantage of small local-oscillator power requirements. A receiver has been constructed which has a single-sideband (SSB) receiver noise temperature of 305 K at 241 GHz.
Keywords :
Amplitude modulation; Electrons; Frequency; Josephson effect; Josephson junctions; Mixers; Receivers; Superconducting device noise; Superconducting devices; Temperature sensors;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1983.1131549
