volume | PIER Journals

Abstract

Several communication systems use multiple input and multiple output (MIMO) antennas to rapidly broadcast and receive data streams. Several current research works on MIMO antennas for vehicle-to-everything (V2X) applications were detailed, along with some limitations such as significant mutual coupling and antenna isolation. To address these difficulties, the manuscript presented a novel metamaterial-based dual-band eight-port MIMO antenna for V2X applications. The proposed eight-port MIMO antenna could be applied to V2X applications in the frequency range of 5.6 GHz to 5.8 GHz. The antenna could resonate at two frequencies, namely 5.64 GHz and 5.73 GHz. The MIMO antenna was constructed with a polyimide substrate and a coplanar waveguide feed (CWF) line. To attain better isolation, a plus shape defected ground structure (Plus shape DGS) was used in this research. By using the binary waterwheel plant optimization algorithm, the antenna parameters are optimized. The proposed antenna was analyzed under different parameters such as gain, return loss, Voltage Standing Wave Ratio (VSWR), axial ratio, and other diversity performances of MIMO antenna like Envelope correlation coefficient (ECC), Total Active Reflection Coefficient (TARC), Mean Effective Coefficient (MEG), and Diversity Gain (DG). The proposed antenna is used in a binary waterwheel plant optimization algorithm for hyperparameter tuning. The proposed antenna obtained return loss values of -36.01 dB and -39 dB at the resonating frequencies of 5.64 GHz and 5.73 GHz, respectively. It achieved gain values of 12.41 dB, 10.7 dB, and ECC values of less than 0.025. The proposed model obtained better results than other models in this comparison analysis.

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Dr. Maruti R. Jadhav

Dr. Uttam L. Bombale