An Integrated 11GHz Cryogenic Downconverter
| Autor: | W. A. Phillips, R.B. Greed, N. Peters, S.J. Zammattio, Tim W. Button, S J Hedges, P.R. Whitehead, B.F. Nicholson, K. Lamacraft, N.McN. Alford, D. Jedamzik, J. Grier |
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| Rok vydání: | 1994 |
| Předmět: |
Materials science
Physics::Instrumentation and Detectors business.industry Local oscillator Bandwidth (signal processing) Astrophysics::Instrumentation and Methods for Astrophysics Electrical engineering Cryogenics High-electron-mobility transistor Superconducting magnetic energy storage Microstrip Condensed Matter::Superconductivity business Microwave Diode |
| Zdroj: | 24th European Microwave Conference, 1994. |
| Popis: | 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 60K Details of the system integration are presented, together with microwave and thermal test results. |
| Databáze: | OpenAIRE |
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