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Antenna and resonant frequency tuning method thereof

  • US 7,538,728 B1
  • Filed: 12/04/2007
  • Issued: 05/26/2009
  • Est. Priority Date: 12/04/2007
  • Status: Active Grant
First Claim
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1. An antenna, comprising:

  • a substrate;

    a microstrip line;

    a ground plane, wherein said ground plane and said microstrip line are formed on the opposite surfaces of said substrate, and said ground plane comprises an aperture; and

    a resonator structure, placed on said ground plane, and a first resonator and a second resonator of said resonator structure are separated by a gap, wherein said microstrip line is used to feed said resonator structure through said aperture, and said first resonator comprises;

    a first bottom surface, wherein said first bottom surface and said ground plane coincide, and a first tunnel is engraved at the corner where said gap and said first bottom surface meet; and

    said second resonator comprises;

    a second bottom surface, wherein said second bottom surface and said ground plane coincide, and a second tunnel is engraved at the corner where said gap and said second bottom surface meet.

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