Comparison of UHF RFID loop matching antennas based on various substrate-metal material combinations

摘要

Inductive coupled loop (ICL) is a matching technique common in UHF RFID tags. In this paper ICL matching is implemented using two antennas one has copper as the radiating antenna and FR4 as a substrate, while the other design is built using silver nanoparticle ink printed on white PET paper. The two antennas are simulated and measured to highlight the effect of using flexible thin material on antennas for RFID tags.