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DIRECTIONAL ANTENNA FOR RFID TAG FINDER

  • US 20150084744A1
  • Filed: 09/23/2014
  • Published: 03/26/2015
  • Est. Priority Date: 09/23/2013
  • Status: Active Application
First Claim
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1. A method comprising:

  • activating a first antenna,determining, by the first antenna, the general presence of a transponder in an area based on a signal received at the first antenna from the transponder;

    activating a second antenna designed to have a null or minimum in a first direction and a radiation pattern in all directions other than the first direction; and

    identifying, by the second antenna, a location of the transponder within the area in response to a lack of response to the second antenna when the null or minimum is directed toward the transponder.

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