NOVEL NEAR FIELD UHF PRINTED RFID TAG ANTENNA

摘要

A novel UHF printed loop antenna is presented for nearrnfield RFID tag antenna application. The antenna printedrnon a FR4 PCB with an overall size of 30 mm × 30 mm ×rn1.6 mm achieves good resonance and uniform magneticrnfield distribution to operate frequency at 915 MHz, whichrnis desirable to improve the read range at perpendicularrnincidence in close proximity to metals or liquids. Readrnrange measurement results of the proposed tag antennarnare compared with the commercially available near fieldrntag.