Abstract
A new monopole microstrip patch antenna design for ultra-wideband applications are proposed in this paper. The proposed antenna is comprised of a ring-shaped with additional slot and upper cutting edge, a 50-ohm microstrip line-fed and a slotted limited ground plane. The proposed antenna size is 3.5 cm 2.4 cm 0.16 cm and is energized by microstrip feed line. The finite-difference time-domain method based Computer Simulation Technology (CST) and finite element method based High Frequency Structural Simulator (HFSS) is adopted in this investigation. The proposed antenna has been achieved excellent gain and the calculated bandwidth of the monopole antenna cover whole UWB frequency range. However, the measured results demonstrate that stable omnidirectional radiation pattern within the entire frequency band. Microwave Opt Technol Lett 58:2152-2156, 2016