circularly polarized planar antenna for  RFID

free research papers, rf, wireless

A circularly polarized planar antenna modified for passive UHF RFID

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Abstract—The majority of RFID tags are linearly polarized dipole antennas, but a few use a
planar, dual-dipole antenna that facilitates circular polarization, but requires a three- terminal
IC. In this paper, we present a novel way to achieve circular polarization with a planar 



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