A COMPACT FRACTAL DIPOLE ANTENNA FOR 915 MHz AND 2.4 GHz RFID TAG APPLICATIONS

A compact printed dipole antenna using fractal shape for Radio Frequency IDentification (RFID) is presented. The proposed antenna consists of a third iteration fractal tree structure with the aim of reducing the antenna size. It occupies a volume of 78 x 30 x 1.58 mm(3) and the radiator is composed of two arms. The antenna has been designed and optimized to cover the bi-band for passive RFID tag at 915 MHz and 2.4 GHz. A parametric study of the proposed antenna was carried out in order to optimize the main parameters. Details of the proposed antenna design and measurement results are presented and discussed.