Machine learning driven four-elements high gain MIMO antenna for wireless connectivity
With innovative technologies developing at a rapid pace, machine learning has become essential to improve interdisciplinary applications such as wireless communications systems. In order to optimize, design and develop a compact ð0:6k 0:6k 0:03kmm3Þ four-elements MIMO antenna at 2.4 GHz resonating frequency, this study uses a machine learning technique. A single element antenna is selected among several steps (1–4) and thereafter, an antenna (A3) turns out to be the best option out of the antennas that were taken into consideration (A1–A3). The optimal antenna (A3) dimensions were carefully ascertained by means of a thorough investigation of 245,700 distinct iterations. The proposed antenna consists of a petal-shaped structure on the center of the radiating plane and rectangular ring with defected semicircles on the ground plane. The antenna exhibits 72.3% (simulated) and 70.2% (measured) impedance bandwidth with a high value of 20 dB of isolation (at 3 GHz). The suggested antenna achieves a maximum gain and radiation efficiency of 9.2 dB and 80% at 2.1 GHz, respectively. Moreover, MIMO characteristics such as Envelope Correlation Coefficient (ECC), Total Active Reflection Coefficient (TARC) and Channel Capacity Loss (CCL) of the intended antenna are studied and found to be well within acceptable limits. The suggested antenna is analysed by means of EM simulator high-frequency structure simulator (HFSS), thereafter it is fabricated and measured and findings show a fair degree of agreement.
Dr. Brijesh Mishra received his M. Tech. (Electronics Engineering) and PhD (Microwave Engineering) degrees from the University of Allahabad in 2012 and 2018, respectively. Dr. Brijesh Mishra worked as an Assistant Professor in the Department of Electronics and Communication Engineering at Shambhunath Institute of Engineering and Technology (SIET) during 2012-2018 and as an Assistant Professor (NPIU-MHRD) in the Department of Electronics and Communication Engineering at Madan Mohan Malaviya University of Technology, Gorakhpur during 2018-2021. He has served as an Associate Professor and HoD in the Department of Electronics and Communication Engineering at Shambhunath Institute of Engineering and Technology (SIET) during 2021-2023. He is currently working as an Associate Professor in the Department of Electronics and Communication Engineering at School of Engineering and Technology, CMR University Bengaluru, Karnataka, India. He has published 05 patents, 04 edited international books and more than 66 research papers (more than 28 SCI indexed papers) in journals of international repute, international conferences and book chapters. Dr. Brijesh Mishra has successfully completed two projects funded by the NPIU & the World Bank. He is the recipient of awards like Excellence in Performance and Outstanding Contributions. He has served as potential reviewer of more than 38 SCI & Scopus indexed journals, organising Track Chair and Organising Secretary for the IEEE Conference (ICE3-2020), Springer Conference (ICVMWT-2021) and Taylor & Francis Conference (ICISSI-2022) respectively. Dr. Mishra has 610 google scholar citations. He is an esteemed member of several prestigious professional societies, including IEEE, ISTE, IE(I), IETE, IAENG, and IFERP, which further enhances his professional standing and demonstrates his commitment to excellence in his field. His research interests include modelling, simulation and fabrication of RF and microwave and IoT devices (microstrip patch antenna, reconfigurable antenna, MIMO antenna, harvesting antenna, THz antenna, filters, couplers, ML and RIS assisted antenna), as well as their applications.
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