Multiband reconfigurable Bowtie slot antenna using switchable slot extensions for WiFi, WiMAX, and WLAN applications

Abstract

Abstract In this letter, a compact multi‐band reconfigurable CPW fed bowtie slot antenna is presented and these performances are discussed. The known properties of the bowtie antenna, namely a high gain and a fairly large bandwidth have been used in order to design a reconfigurable multiband antenna which makes it possible to switch between a single band (initial mode) and dual band or triple band modes, making it more agile in frequency. The proposed approach is based on the integration of two pairs of slots on the two sides of the antenna to create new bands optimized to operate in the two bands of WiFi and WiMAX at 2.4 GHz and 3.5 GHz, respectively. The results of measurements and simulations are presented and compared and a good agreement is established. The antenna is intended for multiservices and cognitive radios applications.