Analysis on size miniaturization in printed circular disc monopole antennas for UWB communications

In this paper we have investigated printed monopole antennas, which is basically printed microstrip antenna with etched ground plane for UWB applications. In particular we have simulated two types of UWB printed monopole antennas: circular patch and Compact Miniaturized Semi-Circular patch UWB monopole antennas and in detail investigation was presented on size miniaturization in order to achieve very compactness with out degradation of the functional parameters and overall performance. Simple rectangular microstrip lines are used for feeding the printed monopole antennas. This UWB monopole antenna designed works well for the whole UWB frequency band 3.1-10.6 GHz.