Design of Planar Inverted F Antenna for LTE mobile phone application

The design of single band Planar Inverted F Antenna (PIFA) for Long Term Evolution (LTE) mobile application is presented in this paper. The antenna consists of a rectangular planar element located above the Flame Retardant 4 (FR4) dielectric substrate. The ground plane is on the bottom side of the substrate. Total dimension of PIFA is 21.72 mm × 18.5 mm × 4mm and has been optimized to cover the LTE Band 7 application at 2600 MHz frequency. This antenna is suitable for mounting on the mobile phone due to its low profile, small size, and good gain. The proposed antenna is simulated using CST Microwave Studio 2011 to study its performance in term of return loss, VSWR and gain.