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.
Development of a compact dual-frequency SIS receiver
01.01.1996
405997 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Development of a Compact Dual-Frequency SIS Receiver
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