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A High Performance 700 GHz Feed Horn

Authors
  • Tan, Boon-Kok1
  • Leech, Jamie1
  • Yassin, Ghassan1
  • Kittara, Phichet2
  • Tacon, Mike1
  • Wangsuya, Sujint2
  • Groppi, Christopher3
  • 1 Department of Physics (Astrophysics), Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, UK , Oxford (United Kingdom)
  • 2 Mahidol University, Physics Department, Rama VI Road, Bangkok, 10400, Thailand , Bangkok (Thailand)
  • 3 ASU School of Earth and Space Exploration, Tempe, AZ, 85287-1404, USA , Tempe (United States)
Type
Published Article
Journal
Journal of Infrared, Millimeter, and Terahertz Waves
Publisher
Springer US
Publication Date
Oct 13, 2011
Volume
33
Issue
1
Pages
1–5
Identifiers
DOI: 10.1007/s10762-011-9845-y
Source
Springer Nature
Keywords
License
Yellow

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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