Design of compact CPW-Fed printed monopole UWB antenna for band notched applications

A band notch applications based coplanar waveguide (CPW)-fed printed monopole UWB antenna is proposed. The CPW fed antenna has band notched attribute for UWB antenna. The proposed band notch UWB antenna consists of stepped like feed line, ground plane and rectangular patch, U-slot and C-slot to magnify the bandwidth of an UWB antenna. By removing C shaped slot and a U shaped slot from stepped rectangular patch, the dual band rejection property is obtained at two frequencies 3.3GHz/4.6GHz. FR4 epoxy substrate is used to design the printed monopole UWB antenna with length 24 mm × width 24 mm. A 50Ω transmission line is used to feed the band notch printed monopole stepped patch rectangular antenna. Finite Element Method (FEM) method is used in the High Frequency Structure Simulator (HFSS) software for structure design and simulation of the UWB antenna. The simulation result shows that, the compact CPW fed UWB antenna has exceptional results including consistent different radiation patterns, stable gain, with better return loss with −10 dB, improved impedance matching.