Beam waveguide reflector with integrated direction-finding antenna for in-situ alignment

W. Kasparek, H. Idei, S. Kubo, T. Notake

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

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An in-situ alignment system for beam waveguides based on an interferometric direction-finding antenna was investigated numerically and experimentally. The system consists of a reflector with four off-central positioned waveguide couplers in two directions. By nulling the difference of the power signals as well as the mixing signal from each coupler pair, spatial and angular alignments of a beam impinging on the mirror can be performed. In this paper, the characteristics of such a mirror are presented, and the design of a prototype intended for use in an ECH transmission line at LHD is described. Low-power as well as high-power tests at a frequency of 82.7 GHz were carried out, and the results are discussed. The device shows a high performance in agreement with theory.

元の言語英語
ページ(範囲)451-472
ページ数22
ジャーナルInternational Journal of Infrared and Millimeter Waves
24
発行部数4
DOI
出版物ステータス出版済み - 4 1 2003
外部発表Yes

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All Science Journal Classification (ASJC) codes

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering

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