Towards a high sensitivity cryogenic phased array feed antenna for the Green Bank Telescope

Towards a high sensitivity cryogenic phased array feed antenna for the Green Bank Telescope

Efforts have been underway for the last several years to develop phased array feed antennas for large reflectors such as the Green Bank Telescope (GBT) as well as mid-size reflectors for Square Kilometer Array demonstration instruments. We report on recent work on a cryogenic L-band phased array fee...

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Hauptverfasser: Warnick, K. F., Carter, D., Webb, T., Jeffs, B. D., Landon, J., Asthana, V., Elmer, M., Norrod, R., Roshi, D. A., Fisher, J. R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Arrays
Cryogenics
Feeds
Frequency measurement
Impedance
Noise
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Beschreibung
Zusammenfassung:Efforts have been underway for the last several years to develop phased array feed antennas for large reflectors such as the Green Bank Telescope (GBT) as well as mid-size reflectors for Square Kilometer Array demonstration instruments. We report on recent work on a cryogenic L-band phased array feed with the goal of reducing the beam equivalent system noise temperature so that it is competitive with that of traditional horn type feeds.
DOI:10.1109/URSIGASS.2011.6050403