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Near-field UHF identification system and a method for identifying an object or the kind of an object that is or contains electrically conductive material using near-field identification

  • US 9,900,058 B2
  • Filed: 06/20/2013
  • Issued: 02/20/2018
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
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1. A near-field UHF identification system comprising:

  • an object that is or contains electrically conductive material; and

    an ultra-high radio-frequency microstrip transponder comprising a microstrip line and an identification microchip connected to the microstrip line;

    wherein;

    the microstrip transponder is attached to the object at a position where the object has an electrically conductive region, the line being positioned along at least one edge of the object in such a manner thatwhen the identification system is being interrogated by an interrogator from below the system, an identification signal from the identification microchip is transmittable from the microstrip line via magnetic near field induced by electric current on the edge of the object to below the object in such a manner that the identification microchip is identifiable.

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