Exponentially shaped microstrip-fed planar monopole antenna for UWB applications

In this paper, a novel microstrip-fed planar monopole antenna with optimized patch and ground for Ultra wideband (UWB) application is proposed. Exponential shape of lower edge of patch was optimized and then upper edge of ground plane, too. Proposed antenna has excellent performance in the UWB band with omnidirectional pattern. The measured results show that proposed antenna achieves a broadband impedance bandwidth of 2.2–14.5GHz for a 10dB return loss.