In this paper, the authors present a very small size microstrip patch antenna suitable for WLAN and WiMAX application. The radiating element of the proposed antenna consists of kite symbol patch using dielectric substrate 4.2, loss tangent .0012 and having the same substrate height 1.6mm. The compact size antenna of dimension (14m x 18.6mm x 1.6mm) employed single layer coaxial probe feed. The computer simulation results show that the antenna can realize wide band characteristics. Proposed antenna covers 3.189GHZ - 4.601GHZ achieving 36.2% of impedance bandwidth in one band and other band ranges from 4.655GHZ-8.29GHZ (impedance bandwidth of 56.165%).