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A Novel CPW Fed Folded Antenna for Dual band WiMAX/WLAN Applications

Sk.Riyaz Hussain

This paper presents a novel CPW fed antenna for dual band application. This antenna is designed to satisfy two licensed frequency bands (2.71GHz to 2.9 GHz); (5.15GHz to 5.85 GHz). These bands are suitable for WiMAX and WLAN applications. This antenna is designed on FR4 substrate with dielectric constant εr =4.4 with size 35mmx25mmx1.6mm. The effects of extrusion depth and number of c-shapes and T-shape, length, and size have been evaluated. By carefully selecting the positions and lengths of C-shapes and T-shape, good dual band characteristic of the antenna are obtained and the two operating bands covering 2.71GHz-2.9GHz, and 5.15-5.85 GHz. This paper includes 2d radiation patterns with elevation and azimuthal planes, VSWR, Return loss and gain. The simulation results of this antenna are analysed by using Method of Moment (MoM) based IE3D software. To save cost and space, an antenna capable of operating in at least two frequency bands are required.