Multi-band Planar-Inverted-F-Antenna Design for WIFI WIMAX and WLAN Applications

In this paper we propose a new triple band Planar-Inverted-F-Antenna (PIFA) to be employed for WIFI/WIMAX/WLAN applications. The multi-band operation is obtained by etching three L-shaped slots from the radiating patch. The first band is centered at 2.47 GHz, the second band is centered at 3.51 GHz and the third band is centered at 5.23 GHz. The radiating patch is mounted on the top of low cost FR4-epoxy substrate acting as ground plane. The patch is connected to the ground plane using a short circuit and powered with a feeding plate. The overall design has an area of 41.66 × 50 mm2. The proposed antenna is studied in terms of reflection coefficient, impedance matching, radiation pattern and distribution current. While the evolution steps has been studied to find the optimized version of the proposed design.