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Antenna device and communication apparatus using the same

  • US 6,281,848 B1
  • Filed: 05/22/2000
  • Issued: 08/28/2001
  • Est. Priority Date: 06/25/1999
  • Status: Expired due to Term
First Claim
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1. An antenna device comprising:

  • a feeding radiation electrode and a non-feeding radiation electrode separately disposed on a surface of a dielectric substrate;

    a short circuit part of the feeding radiation electrode and a short circuit part of the non-feeding radiation electrode adjacently disposed to each other on one side surface of the dielectric substrate; and

    an open end of the feeding radiation electrode and an open end of the non-feeding radiation electrode disposed on mutually different surface sides of the dielectric substrate other than the surface on which said short circuit parts are disposed.

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