Near-Field HF-RFID and CMA-Based Circularly Polarized Far-Field UHF-RFID Integrated Tag Antenna

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Model (band)</td><td class="align_center">NXP NT3H2111 (HF-RFID)</td><td class="align_center">NXP G2X (UHF-RFID)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Input capacitance (<i>C</i>)</td><td class="align_center">50 pF</td><td class="align_center">1.16 pF</td></tr><tr><td class="align_left">Quality factor (<i>Q</i>)</td><td class="align_center">N/A</td><td class="align_center">9.37</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Characteristics of RFID IC chips.</div>

International Journal of Antennas and Propagation

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Table 1

Table 1: Near-Field HF-RFID and CMA-Based Circularly Polarized Far-Field UHF-RFID Integrated Tag Antenna 