The 22 GHz Radioastron receiver: Development of prototype components during the year 1988

Details The 22 GHz Radioastron receiver: Development of prototype components during the year 1988 The 22 GHz Radioastron receiver: Development of prototype components during the year 1988

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989hute.reptq....r&link_type=abstract

Progress Report Helsinki Univ. of Technology, Espoo (Finland). Radio Lab.

Astronomy and Astrophysics

Astronomy

Analog To Digital Converters, High Electron Mobility Transistors, Phase Locked Systems, Radio Astronomy, Radio Receivers, Calibrating, Down-Converters, Low Noise, Oscillators, Prototypes, Schottky Diodes, Spacecraft Communication, Very Long Base Interferometry

Scientific paper

The progress made in the 22 GHz low noise Radioastron receiver project during the year 1988 is described. A receiver for satellite very long base interferometry radio astronomy is being designed and constructed. The LNA utilizing high electron mobility transistors will be cooled to 80 K, the other parts of the receiver including a phase locked LO at 21.72 GHz, down-conversion to 512 MHz IF, total power detector and noise injection calibration system stay at 300 K physical temperature.

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