Compact Ultra-Wideband Antenna Using Coplanar Stripline (CPS)-Fed

Abstract

Today’s wireless communication systems should be capable to fulfill various insatiable demands for higher data rate and resolutions requirement. In order to satisfy those requirements in UWB system, a lot of antennas that can provide wide bandwidth have been proposed. In this paper, a coplanar stripline (CPS)-fed antenna for ultra-wideband (UWB) application was proposed. This antenna was designed using FR4 board with dielectric constant, r = 4.4, tangent loss, tan = 0.02 and substrate’s thickness, h = 1.6mm. The simulation was done using Computer Technology (CST) software. The simulation result shows that the modified coplanar stripline (CPS)-fed antenna significantly improved the fractional bandwidth by 200 % at frequency range 3.386 GHz -12.943 GHz. The optimal results of this coplanar ultra-wideband antenna were 5.100 GHz, 9.836 GHz and 12.155 GHz with a gain of 2.598 dB, 4.452 dB and 5.383 dB and the return loss of – 46.845 dB, - 23.428 dB and – 13.595 dB.