A Novel Design of Compact Dipole Antenna for 900 MHz and 2.4 GHz RFID Tag Applications

A novel design of fractal dipole antenna has been presented for RFID (Radio Frequency Identiflcation) tag applications, which is based on the fractal theory. The antenna consists of two third iteration triangle fractal arms, and has been designed to work at 900MHz (GSM) and 2.4GHz (ISM), and its size is 89mm£29mm£1:6mm. The simulated results for various characteristics of the antenna have been shown using flnite element technique based commercial software ANSOFT HFSS. The simulated and measured impedance results are in good agreement.