Compact High Gain Wide Band Planar Antenna Design using Metamaterial Techniques for Wireless Applications

Abstract

The paper refers to the design of metamaterial antenna configuration suitable for wideband applications in wireless communications, especially focusing on modern commercial and Defence applications. Metamaterials have emerged as a tactical solution to several electromagnetic system problems, which are highly constrained by size and volume limitations along with characteristics like multi-band, high gain and wideband requirements. In this paper, a single metamaterial radiating element has been designed for wide band in order to obtain the desired high gain. The simulation-based study uses modern EM tools and further analyzed using the reflection coefficient, current distribution and radiation patterns. The overall size of the antenna is 48 mm x 48 mm x 1.6 mm. The simulation and measurements are carried out for the performance proposed work. The simulation results are giving the bandwidth (BW) of 3.5 (2.1-5.6) GHz and a simulated gain of 4.7 dB at the centre frequency, for achieving the high bandwidth defected ground structure (DGS) technique and square ring resonator (SRR) techniques are used. The measured results are giving the bandwidth of ∼10.5 (2.1-12.6) GHz and a gain of ∼4.5 at the centre frequency. The simulation and measured results are achieving the similar performance and the proposed work is best suitable for wireless applications.