An integrated 11 GHz cryogenic downconverter

A cryogenic downconverter has been designed and built to demonstrate the integration of semiconducting and superconducting components in a complete subsystem cooled by a closed cycle Stirling cryocooler. The frequency selective receiver converts 11 GHz (X-band) signals to an IF of 1000 MHz using a h...

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Veröffentlicht in:IEEE transactions on applied superconductivity 1995-06, Vol.5 (2), p.2283-2286
Hauptverfasser: Phillips, W.A., Jedamzik, D., Lamacraft, K., Zammattio, S., Greed, R.B., Hedges, S.J., Whitehead, P.R., Nicholson, B.F., Button, T.W., Smith, P.A., Alford, N.M., Peters, N., Grier, J.
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Sprache:eng
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Zusammenfassung:A cryogenic downconverter has been designed and built to demonstrate the integration of semiconducting and superconducting components in a complete subsystem cooled by a closed cycle Stirling cryocooler. The frequency selective receiver converts 11 GHz (X-band) signals to an IF of 1000 MHz using a high temperature superconducting (HTS) microstrip input filter with a 1% bandwidth, a silicon diode mixer and a local oscillator stabilized by means of a 10 GHz HTS cavity and driven by a GaAs HEMT. The components are packaged into a cryogenic unit cooled to 60 K. Details of the system integration are presented, together with microwave and thermal test results.< >
ISSN:1051-8223
1558-2515
DOI:10.1109/77.403041