Design of Planar Antenna for UWB Communication

This paper communicates a design of ultra-wideband planar antenna with a defective ground and the performance characteristics are analysed in this study. The proposed antenna with the dimension of 0.42λg ×0.42 λ g has 4.21 dBi peak gain, omnidirectional radiation pattern and above 80% efficiency over the full UWB working spectrum. The antenna is designed using Rogers RO3003 substrate and provides a large frequency coverage of 3.1 GHz and 13.4 GHz (S11 < −10 dB) with impedance bandwidth of 10.3 GHz. The simulation results for the developed UWB planar antenna demonstrate that it works well and is appropriate for high-speed communication.