Very compact palmate leaf-shaped CPW-FED monopole antenna for UWB applications

This article presents a very compact coplanar waveguide-fed planar monopole antenna for ultrawideband (UWB) applications. The antenna consists of a palmate leaf-shaped radiator with a modified shaped ground plane on the same side of the substrate. The measured impedance bandwidth of the proposed antenna is from 3.08 to over 14 GHz with a ratio of about 4.6:1 for VSWR <= 2. Experimental results show that the proposed antenna has stably omnidirectional H-plane radiation patterns with low cross-polarization level and average peak gain of 3 dBi across the UWB. The antenna dimensions are restricted to 13.5 x 14.8 x 0.8 mm(3). (c) 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1612-1616, 2014