85 - 115-GHz Receivers for Radio Astronomy

Low-noise receivers for radio astronomy have been built using Pb alloy superconducting tunnel junction mixers operating at 4.5 K. They have been used for 85-115-GHz astronomy with double-sideband receiver noise temperature between 70 and 200 K. Junction fabrication and receiver construction, operati...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 1985-02, Vol.33 (2), p.90-95
Hauptverfasser:	Woody, D.P., Miller, R.E., Wengler, M.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Fabrication Josephson junctions Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Mixers Quantum mechanics Radio astronomy Radio interferometry Receivers Superconducting device noise Superconducting materials Temperature
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Beschreibung
Zusammenfassung:	Low-noise receivers for radio astronomy have been built using Pb alloy superconducting tunnel junction mixers operating at 4.5 K. They have been used for 85-115-GHz astronomy with double-sideband receiver noise temperature between 70 and 200 K. Junction fabrication and receiver construction, operation, and performance are described herein.
ISSN:	0018-9480 1557-9670
DOI:	10.1109/TMTT.1985.1132955