Design of Planar Crossed Monopole Antenna for Ultrawideband Communication

This letter proposes a planar crossed monopole antenna for ultrawideband application. The numerical simulations using Computer Simulation Technology (CST) transient solver and WIPL-D demonstrate that the impedance bandwidth of a rectangular monopole dramatically increases by including the cross plate. Parametric study on the crossed plate parameters is conducted to achieve the return loss of 10 dB over the desired frequency range (3.1-10.6 GHz). The stability of radiation pattern is also presented. The measured result for the return loss of a prototype antenna shows the same bandwidth as the simulated result.