In this paper, iterative square ring fractal antenna is proposed, designed and developed for Wireless application. The functional characteristics of the antenna such as return loss, VSWR, radiation pattern and gain are evaluated. Compact size and multi-band compatibility are the major design requirements of fractal antenna. The proposed antenna has the dimension of 20mm X 20mm and it supports dual band which is designed in FR4 substrate. It resonates at 5.9 GHz and 8.8 GHz with the return loss of -33dB, -16dB, respectively. Further, the performance of the antenna is analyzed by varying feed position, feed width and substrate thickness. By the analysis, we concluded that the proposed antenna have better performance at left feed position with 0.9mm of feed width at the substrate thickness of 3.2mm.