In this paper, the authors present Ansoft HFSS based parametric analysis and design of UWB bicone antenna. The design frequency of proposed antenna is 2.4GHz. This antenna covers the 1.3-17.5GHz frequency band with return loss less than -10dB. The bandwidth has been achieved by making a simple and easy modification in the design parameter of the bicone antenna. The Voltage Standing Wave Ratio (VSWR) less than 2 within the frequency range of 1.3GHz-17.5GHz of this antenna is noticed.