Bandwidth-Enhanced Metamaterial Integrated Antenna for Wireless Applications

Abstract

This paper represents a metamaterial (MTM) integrated bandwidth-enhanced antenna for modern wireless communication systems. The MTM ultra wide-band (UWB) antenna comprises of two unit cells on the top of the substrate, a circular disc monopole, and a partial ground plane. The unit cell consists of a split ring resonator. Without unit cells, the monopole antenna can operate in a wide band of impedance bandwidth of 7.5 GHz, corresponding to a percentage bandwidth of 120% (2.5-10 GHz). After the integration of MTMs, the proposed antenna can operate from 1.5-10 GHz range with a percentage bandwidth of 147.8%. So, MTMs integration can provide additional operation at 1.5-2.5 GHz, thus the bandwidth is broadened. As the dimensions of the unit cells are much smaller than the resonant frequency,

miniaturization of the antenna size can be achieved. Different simulated antenna performance parameters such as reflection coefficients, radiation patterns, and gain are analyzed. The simulated gains of the proposed design at 1.5, 2.4, 5.8 and 10 GHz are 1.17 dBi, 2.18 dBi, 3.6 dBi, and 4.05 dBi, respectively. The proposed antenna could be a potential contender for different remote correspondence frameworks, for example, GPS, Wi-Fi, WLAN, and RADAR.