A Multi-Feed Receiver in the 18 to 26.5 GHz Band for Radio Astronomy

A large-bandwidth, state-of-the-art multi-feed receiver has been constructed to be used on the new 64 m Sardinia Radio Telescope (SRT) (http://www.srt.inaf.itl), an antenna aiming to work from 300 MHz to 100 GHz with an almost continuous frequency coverage. The goal of this new receiver is to speed...

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Bibliographic Details
Published in:IEEE antennas & propagation magazine 2010-08, Vol.52 (4), p.62-72
Main Authors: Orfei, A., Monari, J., Morsiani, M., Natale, V., Nesti, R., Panella, D., Poloni, M., Roda, J., Scalambra, A., Tofani, G., Carbonaro, L., Cattani, A., Cremonini, A., Cresci, L., Fiocchi, F., Maccaferri, A., Maccaferri, G., Mariotti, S.
Format: Magazinearticle
Language:English
Subjects:
antenna feeds
antenna radiation patterns
Antennas
Construction
corrugated horn antennas
Frequency bands
horn antennas
microwave receiver
monolithic low noise amplifier
multi-feed
Radio astronomy
Radio telescopes
Receivers
reflector antenna feeds
Semiconductor device measurement
Sky
State of the art
Wires
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Summary:A large-bandwidth, state-of-the-art multi-feed receiver has been constructed to be used on the new 64 m Sardinia Radio Telescope (SRT) (http://www.srt.inaf.itl), an antenna aiming to work from 300 MHz to 100 GHz with an almost continuous frequency coverage. The goal of this new receiver is to speed up the survey of the sky with high sensitivity in a frequency band that is very interesting to radio astronomers. In the meantime, the antenna erection has been finalized, and the receiver has been mounted on the Medicina 32 m antenna to be tested (http://www.med.ira.inaf.itl). We present a complete description of the system, including a dedicated backend, and the results of the tests.
ISSN:1045-9243
1558-4143
DOI:10.1109/MAP.2010.5638236