A COMPARATIVE EVALUATION OF TRIPLE FREQUENCY NOTCHED UWB ANTENNA

A comparative study of compact coplanar-waveguide (CPW) fed ultrawideband (UWB) printed monopole antenna (PMA) with triple frequency notching achieved by using single ring split ring resonators (SRR) is presented and validated here on two different substrates such as FR4 Epoxy material and RT Duroid 5870 material. Here also a comparative design study made on two substrates in order to study the effect of permittivity and height of substrates on this antenna. Here the antenna loaded with three single ring SRRs to create triple band notches, in 3.5 GHz for WiMAX, 5.5 GHz for WLAN, and 7.9 GHz for X-band satellite communication systems, respectively. Return loss and voltage standing wave ratio (VSWR) are used to show the effect of these rings. The measured result shows a close correlation to the theoretical results.