Design and simulation dual-band PIFA antenna for GSM systems

In this paper, a new design of a dual band Planner Inverted-F Antenna (PIFA), for cellular telephone systems and other applications is presented. The PIFA antenna is composed of ground plane, patch antenna, feeding post and shorting plate connected to the ground plane. The designed antenna has been simulated using the CST 2010 software. The simulated results for the resonant frequency, return loss, radiation pattern and gain are presented and discussed. The bandwidths of 114MHz and 176MHz for GSM900 and GSM1900 respectively are achieved on the basis of ≤ -6 dB return loss as an acceptable reference in mobile phones applications. A gain of 1.933dB and 4.74dB is obtained in lower and higher frequency respectively.