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Dielectric loaded antenna apparatus with inclined radiation surface and array antenna apparatus including the dielectric loaded antenna apparatus

  • US 7,088,290 B2
  • Filed: 08/28/2003
  • Issued: 08/08/2006
  • Est. Priority Date: 08/30/2002
  • Status: Active Grant
First Claim
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1. A dielectric loaded antenna apparatus comprising:

  • a waveguide; and

    a column-shaped loaded dielectric loaded on an end portion of said waveguide, said column-shaped loaded dielectric having an inclined radiation surface which is inclined from a surface perpendicular to an axial direction of said column-shaped loaded dielectric, wherein said waveguide includes;

    a radiation waveguide having an axis parallel to the axial direction of said column-shaped loaded dielectric and including an opening for feeding an electromagnetic wave to said column-shaped loaded dielectric; and

    a feeding waveguide for feeding the electromagnetic wave to said radiation waveguide, andwherein said column-shaped loaded dielectric is arranged so that a central axis of said column-shaped loaded dielectric is shifted from a central axis of said radiation waveguide.

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