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Field improving system provided with resonator

  • US 8,305,217 B2
  • Filed: 11/21/2007
  • Issued: 11/06/2012
  • Est. Priority Date: 11/21/2006
  • Status: Expired due to Fees
First Claim
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1. A wireless communication field improving system using resonators to enhance performance of a radio frequency identification (RFID) system, the field improving system comprising:

  • a sensor, and an IC tag or a non-contact type IC card;

    the sensor, or the IC tag or non-contact type IC card having a magnetic substance and a first coil wound spirally on a face of said magnetic substance; and

    a first resonator having a second coil and a first capacitor connected to said second coil, wherein;

    said second coil is wound spirally on the face of said magnetic substance and is arranged in the same axial direction as the axial direction of said first coil.

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