Hexagonal Shaped Antenna Using MIMO Techniques for 2.1 GHz Wireless Application

Abstract

The wireless and portable equipment demand for boosting the data rate, spectral efficiency, coverage, SNR, and capacity which is fulfilled by MIMO antenna technology. In this research 4 elements hexagonal shaped antenna using MIMO techniques is designed for 2.1 GHz mobile and wireless applications. The antenna has four ports with identical radiators with hexagon shape. The special designed manifold arms of the proposed antenna design provide low correlation among the radiators. The inter-port isolation greater than 15 dB is achieved. The other MIMO antenna parameters like ECC is < 0.08 and the diversity gain is 10 dB in considered in 2:1 VSWR band. The proposed design ensures lower than 0.5 W/kg specific absorption rate (SAR), 3.0 dB mean effective gain (MEG) and 0.4 bits/s/Hz channel capacity loss (CCL). The peak gain of the antenna is 0.45 dBi at resonance. The E-field shows a maximum magnitude/major lobe in the direction of 190 °. The H-Field shows the major radiation in the direction of 187 °. The CST-MWS antenna designing tool is used to simulate and optimize the proposed design and it fabricated on FR-4 substrate. The research focuses on various parameters associated with MIMO antenna viz SAR, S-parameters, envelop correlation coefficient (ECC), radiation patterns, CCL, Diversity Gain surface current distribution, and MEG.