A novel miniaturized V-shaped monopole antenna for GSM/WiMAX/WLAN applications

This paper presents a novel miniaturized triple band V-shaped antenna (VSA). The miniaturization and the triple-band operation are obtained by performing two V-shaped turns on the metallic strip. The proposed antenna is printed on a single FR4 substrate and fed using the coplanar waveguide (CPW) technique. It operates in three frequency bands, [1.6-1.95 GHz], [2.8-4.4 GHz] and [5.4-5.8 GHz], with stable bidirectional radiation patterns in both E- and H-planes. A prototype of the designed antenna is fabricated and tested where the observed good agreement between simulated and experimental results indicates that the proposed structure, having a reasonably compact size of 0.0166 lambda(2)(0), is suitable for GSM [1800 MHz], WiMAX [3.4-3.77 GHz] and WLAN [5.725-5.825 GHz] applications.