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Antenna Performance of a Directly Dug Corrugated Feedhorn for the 150-GHz Band

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Abstract

We have developed a 150 GHz band corrugated feed horn. These corrugated feed horns have been established by a new machining method, which involves digging corrugations through a metal material. We were able to realize E plane and H plane symmetry, low side lobe level, and low cross-polarization level. Measured co-polarization beam patterns above − 35 dB were consistent with the simulated patterns within a designed frequency range. The peak levels of cross-polarization beam patterns were less than − 30 dB. And, the performances were uniform in several horns. In the present paper, we describe the corrugated horn produced by this methods.

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Acknowledgements

We would like to thank the ALMA Band 4 team for their support in performing the measurements.

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Authors and Affiliations

  1. Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-Cho Nakaku Sakai, Osaka, 599-8531, Japan

    Kimihiro Kimura & Hideo Ogawa

  2. Advanced Technology Center, National Astronomical Observatory of Japan, 2-21-1 Osawa Mitaka, Tokyo, 181-8588, Japan

    Hiroyuki Iwashita & Shin’ichiro Asayama

  3. Nobeyama Radio Observatory, 462-2 Nobeyama Minamimaki Minamisaku, Nagano, 384-1305, Japan

    Hiroyuki Iwashita

  4. ALMA project office, National Astronomical Observatory of Japan, 2-21-1 Osawa Mitaka, Tokyo, 181-8588, Japan

    Masahiro Sugimoto

  5. Kanagawa Kiko Co., Ltd., 4-21-20 Miyauchi Nakahara Kawasaki, Kanagawa, 211-0051, Japan

    Gumpei Kikuchi

Authors
  1. Kimihiro Kimura
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  2. Hiroyuki Iwashita
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  3. Shin’ichiro Asayama
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  4. Masahiro Sugimoto
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  5. Gumpei Kikuchi
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  6. Hideo Ogawa
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Corresponding author

Correspondence to Kimihiro Kimura.

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Kimura, K., Iwashita, H., Asayama, S. et al. Antenna Performance of a Directly Dug Corrugated Feedhorn for the 150-GHz Band. Int J Infrared Milli Waves 29, 713–723 (2008). https://doi.org/10.1007/s10762-008-9368-3

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  • DOI: https://doi.org/10.1007/s10762-008-9368-3

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