Monopole antenna C shape with a wide slot for UWB applications

Monopole antenna is proposed for ultra wideband (UWB) operation is designed and simulated using HFSS software. This paper presents a monopole antenna is integrated with one side printed circuit board (PCB). Semi-circular patch with are rectangular patch above the patch a small circular hole in the patch wit. A micro strip-fed is attached to one side c shape antenna. The patch is designed on the basis of fr4 substrate is used to thickness is not so high. This is due to the fact that the ground plane may introduce extra resonant modes and change the current distribution on the antenna structure; hence to distort its performance. By optimizing any changes can increase the upper frequency and hence decreases the reflection in the higher frequency. The simulated and result is the peak value of antenna is 3 GHZ and using the application is UWB. So the frequency range is 3 to 5 GHZ. To measurement and determined the performance of S-parameter, VSWR, refection coefficient and return loss and peak value is 3GHZ.