Design of RFID Tag Antenna with Impedance Matching Techniques at UHF Band

摘要

The system is designed for narrowband RFID Tag. The work started from HPMSA and achieved narrowband AHMSA. Its input impedance of antenna is well matched to chip 1. The minimum PRC 0.05 was achieved by introducing step-by-step inductive loading techniques to the basic HPMSA. The maximum read range 5.81 m with chip 1 and 3.64 m with chip 6 at -15 dBm threshold power was achieved. The proposed antenna (T-matching with stub AHMSA) was simple in design and analysis and well suited to the applications at selected frequency band.