Abstract
A novel chipless RFID (Radio Frequency Identification) tag is presented to make low cost tags, reduce the size of RFID tag and make more ability to secure than available RFID tags. It consists of multiresonator circuit using open stub resonators, transmitter and receiver disc monopole antennas. The multiresonator circuit which is having ten-bit data encoding capacity and ultra-wideband disc monopole tag antenna are simulated in Ansys HFSS (High-Frequency Structural Simulator) software. This Chipless RFID tag is simulated on a FR4 substrate, 4.3 dielectric constant, and 0.0018 loss tangent and 50 Ω characteristics impedance. In this work, the backscatter signal of multiresonator circuit is processed to realize the unique identification number from the RFID tag by using the presence or absence coding technique at the receiver of RFID reader circuit and return loss characteristics of ultra-wide band (UWB) disc monopole antenna is observed −10 dB from 1.39 to 15.25 GHz.
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