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Antenna Device and Radio-Communication System Using the Same

  • US 20090140947A1
  • Filed: 10/27/2005
  • Published: 06/04/2009
  • Est. Priority Date: 11/08/2004
  • Status: Abandoned Application
First Claim
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1. An antenna device comprising:

  • a substrate;

    a ground conductor provided on the bottom surface of the substrate;

    a radiation conductor, with a partial cutout, provided on the top surface of the substrate;

    a ground terminal provided in the partial cutout of the radiation conductor;

    a conductor to connect the ground conductor with the ground terminal; and

    a feed terminal connected to the radiation conductor, wherein the ground terminal and the feed terminal are connected to an IC chip, and a slit is provided between the radiation conductor and the feed terminal.

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