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Inductively coupled loop antenna for a radio frequency identification reader

  • US 20090009335A1
  • Filed: 07/03/2007
  • Published: 01/08/2009
  • Est. Priority Date: 07/03/2007
  • Status: Active Grant
First Claim
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1. A radio frequency identification reader system, comprising:

  • a portable reader, including;

    reader circuitry configured to generate an activation signal;

    a first resonant antenna, where the first resonant antenna is electrically connected to the reader circuitry;

    a reader housing containing the reader circuitry and the first resonant antenna;

    a stationary antenna assembly including;

    a resonant antenna unit including a housing and a second resonant antenna;

    a loop antenna unit including a housing and a loop antenna; and

    an electrical connection between the resonant antenna unit and the loop antenna unit;

    wherein the first resonant antenna in the portable reader is inductively coupled to the second resonant antenna in the stationary antenna assembly.

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