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Tunable Folded- Patch UHF RFID Tag Antenna Design using Theory of Characteristic Modes
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
In this paper, a tunable ultra-high frequency (UHF) radio frequency identification (RFID) tag antenna is proposed using characteristic modes analysis. The proposed tag consists of a folded-patch and a feeding loop stacked on two substrate layers. The folded patch wrapped around 2 mm thick FR4 substrate and is optimized using characteristic modes to resonate around 915 MHz. The inductive feeding loop provides matching with RFID chip. This tag covers American RFID band form 905 MHz to 928 MHzdoi:10.1109/apusncursinrsm.2018.8608266 fatcat:c6mbqhqetvacbkb2ctz3f5byrq