A High Performance 700?GHz Feed Horn |
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| Authors: | Boon-Kok Tan Jamie Leech Ghassan Yassin Phichet Kittara Mike Tacon Sujint Wangsuya Christopher Groppi |
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| Affiliation: | (1) Department of Physics (Astrophysics), Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, UK;(2) Physics Department, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand;(3) ASU School of Earth and Space Exploration, PO. Box 871404, Tempe, AZ 85287-1404, USA; |
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| Abstract: | We present a design of a high performance horn operating at 700 GHz. The feed, which comprises three smooth-walled conical
sections, is easy to machine and yet has comparable performance to a corrugated horn. The measured radiation patterns show
high main beam circularity, low sidelobe level and good agreement with theoretical predictions. The cross-polar level is below
−20 dB across a frequency bandwidth of 140 GHz. The new design allows the fabrication of high performance, large format feed
arrays cheaply and rapidly. |
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