Design of Papery Substrate Small Loop Antenna for RFID Application

This paper deal with the design of RFID tag antenna for UHF(860-960 MHz).Electrical characteristics and radiation characteristics of papery substrate small loop antenna were calculated and simulated.The impedance of the small loop antenna is matched to the impedance of the RFID tag chip by adjusting the antenna of geometric dimension and the physical parameter of paper substrate.Based on results of calculation and simulation,a papery substrate small loop antenna was designed for 915 MHz RFID tag.