Test of a two-dimensionally focusing quasi-optical antenna using a gyrotron

DOI PDF 被引用文献1件
  • T. Idehara
    Faculty of Engineering, Fukui University, Fukui 910, Japan
  • T. Tatsukawa
    Faculty of Engineering, Fukui University, Fukui 910, Japan
  • G. F. Brand
    School of Physics, University of Sydney, Sydney, NSW 2006, Australia
  • P. W. Fekete
    School of Physics, University of Sydney, Sydney, NSW 2006, Australia
  • K. J. Moore
    School of Physics, University of Sydney, Sydney, NSW 2006, Australia

抄録

<jats:p>A quasi-optical antenna having one elliptical reflector and one parabolic reflector has been built for millimeter wave scattering measurements on the TORTUS tokamak plasma at the University of Sydney. This letter reports the first demonstration of the properties of such an antenna using a gyrotron millimeter wave source. Its advantages are (1) good two-dimensional focusing (along the major radius and the toroidal directions) and (2) easy movement of the focus across the diameter of the plasma by changing the orientation of the parabolic reflector.</jats:p>

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