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Wireless IC device

  • US 9,231,305 B2
  • Filed: 04/06/2011
  • Issued: 01/05/2016
  • Est. Priority Date: 10/24/2008
  • Status: Active Grant
First Claim
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1. A wireless IC device, comprising:

  • a wireless IC arranged to process a radio signal;

    a feeder circuit board including a feeder circuit that includes an inductance element; and

    a loop electrode including at least two adjacent open ends;

    whereinthe feeder circuit board includes a magnetic body that includes a magnetic material;

    the inductance element is disposed in the magnetic body;

    the loop electrode is disposed directly on an outer exposed surface of the magnetic body of the feeder circuit board;

    the loop electrode is electromagnetically coupled to the inductance element via the magnetic body such that the inductance element is connected or coupled between the wireless IC and the loop electrode and the wireless IC is connected to the loop electrode via the feeder circuit; and

    the radio signal processed by the wireless IC is transmitted from the wireless IC to the inductance element, from the inductance element to the loop electrode, and then radiated from the loop electrode.

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