T-slot PIFA with excitation of the ground plane resonant modes and considerations of the interaction between antenna, mobile handset and user's head

Abstract

This paper presents a T-slot planar inverted F antenna (PIFA) for wireless mobile communications GSM/UMTS/WCDMA systems. A modified ground plane is used to increase the bandwidth. A prototype is implemented and the differences in performance of the antenna with and without the presence of the mobile handset and the user's head are estimated. The simulations are performed using the finite difference time domain (FDTD) method.