Development of Denture Implanted RFID Tag Antennas

Denture implanted RFID tag antennas in the UHF band is presented. The measured input impedances of the antennas in the human body phantom are presented and the conjugate matching condition between the antennas and the RFID chip are evaluated. As a result, the conjugate reflection coefficient of -21 dB between the tag antenna and a RFID chip is obtained at 920 MHz.