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

Author

Warnick, Karl F. ; Carter, David ; Webb, Taylor ; Jeffs, Brian D. ; Landon, Jonathan ; Asthana, Vikas ; Elmer, Michael ; Norrod, Roger ; Roshi, D. Anish ; Fisher, J. Richard

Author_Institution

ECE Dept., Brigham Young Univ., Provo, UT, USA

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

antenna feeds; antenna phased arrays; antenna radiation patterns; cryogenics; horn antennas; optical elements; radiotelescopes; Green Bank Telescope; beam equivalent system; cryogenic L-band phased array feed; cryogenic phased array feed antenna; horn type feeds; large reflectors; mid-size reflectors; noise temperature; square kilometer array demonstration instruments; Arrays; Cryogenics; Feeds; Frequency measurement; Impedance; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050403

Filename

6050403