The development of small antenna plays a vital role in the rapid expanding of wireless communication. In this paper, a single feed compact Planar Inverted F-Antenna (PIFA) is presented. The wireless communication need compact and efficient antenna. The PIFA antenna satisfies the condition of the wireless communication. The antenna is proposed for the wireless communication which supports GSM and WLAN frequencies. The antenna has compact structure 19x22mm, which covers the 1.8GHz GSM and 5.5GHz WLAN applications. Simulation based upon method of moments.