Title :
Development of a compact dual-frequency SIS receiver
Author :
Shi, Shengcai ; Inatani, Junji ; Noguchi, Takashi ; Xu, Zhicai
Author_Institution :
Nobeyama Radio Obs., Nagano, Japan
Abstract :
Of particular interest for the 14 m millimeter-wave telescope at Delingha (PMO, China) is to observe J=1-0 and 2-1 transitions of carbon monoxide (as well as those of their isotopes), which give rise to emissions at frequencies of around 115 and 230 GHz, respectively. Incorporated with a modified two-stage Gifford-McMahon (GM) 4-K refrigerator, a compact dual-frequency (100- and 230GHz) SIS (superconductor-insulator-superconductor) receiver is developed. Experimental results upon the 4-K cryogenic system and the 100 GHz SIS receiver are presented
Keywords :
cryogenics; cryostats; millimetre wave mixers; millimetre wave receivers; radiotelescopes; superconducting microwave devices; superconductor-insulator-superconductor mixers; 100 GHz; 230 GHz; 4 K; CO; EHF; MM-wave receiver; compact SIS receiver; cryogenic system; dual-frequency SIS receiver; millimeter-wave telescope; superconductor-insulator-superconductor receiver; two-stage Gifford-McMahon refrigerator; Cooling; Cryogenics; Frequency; Optical receivers; Radio astronomy; Refrigeration; Superconducting device noise; Superconducting devices; Telescopes; Temperature;
Conference_Titel :
Millimeter Wave and Far Infrared Science and Technology, 1996. Proceedings., 4TH International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-3619-4
DOI :
10.1109/ICMWFT.1996.574807
