A compact rectangular slotted monopole antenna for ultra wideband (UWB) application is presented. The designed antenna has a simple structure and compact size of 25 × 26 mm 2 . This antenna consist of radiating patch with two steps and one slot introduced on it for bandwidth enhancement and a ground plane. Antenna is feed with 50 microstrip line. IE3D method of moments based simulation software is used for design and FR4 substrate of dielectric constant value 4.4 with loss tangent 0.02.