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Noncontact IC card reader/writer integrated with antenna

  • US 20040266486A1
  • Filed: 06/29/2004
  • Published: 12/30/2004
  • Est. Priority Date: 06/30/2003
  • Status: Active Grant
First Claim
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1. A noncontact IC card reader/writer integrated with an antenna, comprising:

  • a loop antenna, which supplies electric power and send data to a noncontact IC card by electromagnetic induction and acquires receive data from the noncontact IC card by load fluctuation;

    a magnetic body, arranged closely at the back of the loop antenna;

    a first metallic plate, arranged on the back side of the magnetic body; and

    a second metallic plate, arranged on the back side of the first metallic plate and larger than the first metallic plate in size.

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