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RFID System and Method

  • US 20170116508A1
  • Filed: 01/09/2017
  • Published: 04/27/2017
  • Est. Priority Date: 09/06/2007
  • Status: Active Grant
First Claim
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1. An RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising:

  • an inductive component including a multi-segment loop antenna assembly, wherein the multi-segment loop antenna assembly includes;

    at least a first antenna segment including at least a first phase shift element configured to reduce the phase shift of the carrier signal within the at least a first antenna segment, andat least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment,wherein the length of each antenna segment is no more than 25% of the wavelength of the carrier signal; and

    at least one matching component configured to adjust the impedance of the multi-segment loop antenna assembly;

    wherein the inductive component is configured to be positioned proximate an access assembly of a processing system and to allow RFID-based actuation of the access assembly.

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