Techniques of Band-Broadening for an Inverted-F Antenna used in WLAN

Abstract

This paper is to present a design method for a PIFA antenna, which can be used to cover the resonant frequency range both of IEEE 802.11a standard and IEEE 802.1 lb/g standard individually. Especially, The band of 802.11a is almost covered fully as a wideband, instead of only individual narrow bands. This PIFA antenna is based on the traditional concept of transmission line antenna. Physically, it is a double-sided PIFA antenna with different width at some parts of its horizontal section. Both of simulated and measured results are presented.