A novel UWB planar antenna with notch cut for wireless communications

Abstract

A novel printed antenna with a trimmed notch cut, fed by a simple microstrip line, is proposed and described. It is designed and fabricated for ultra-wideband (UWB) wireless communications under the band (3.1-10.6 GHz). This antenna is composed of a planar rectangular patch with notch cut and a transition step fed by a microstrip line with a partial ground plane. A parametric study is carried out to optimize the proposed patch antenna. The measured 10 dB return loss bandwidth for the designed antenna is 7.5 GHz. The proposed antenna provides a good radiation pattern and a relatively flat gain over the entire frequency band. The design details and related results are presented and discussed. © Springer Science+Business Media, LLC 2010.