Improving the shielding effectiveness of a rectangular enclosure by optimizing aperture and coating with graphene sheet

Abstract

Incorporating an electric propulsion system into conventional vehicle electronic architecture makes electromagnetic compatibility (EMC) become one of the most important issues during electric vehicle design. Electromagnetic shielding is one of the compulsory preventions to protect electronic circuits against electromagnetic interference (EMI). However, apertures of the shielding enclosure reduce shielding effectiveness (SE) by permitting EMI leakage to affect the electronic circuits. When the dimensions of the enclosure remain fixed and the aperture has a particular area, studies such as optimization of the aperture dimensions or changing the enclosure material are essential. In this study, a genetic algorithm (GA) is designed initially, which improves SE by determining aperture dimensions on the front surface of the shielding enclosure. Then, obtained aperture dimensions are used in a numerical model in which the inner surfaces of the enclosure are coated with graphene sheets. It is observed that SE simulation results are in good agreement with measurement ones.

KEYWORDS:

• Electric vehicle
• electromagnetic compatibility
• shielding effectiveness
• genetic algorithm
• graphene sheet

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

Bursa Uludağ University provided grant for the study via a scientific research project (Project Number: FGA-2021-307).

Notes on contributors

Sunay Güler

Sunay Güler received his B.Sc. degree in electronics and communication engineering from Yıldız Technical University, Istanbul, Turkey in 2009 and M.Sc. degree in electronics engineering from Istanbul Technical University, Istanbul, Turkey in 2012. He received Ph.D. degree in electronics engineering from Bursa Uludağ University, Bursa, Turkey in 2022. His areas of interest are electric vehicle, EMC, electromagnetic fields and waves, genetic algorithm, graphene based nanocomposites.

Sibel Yenikaya

Sibel Yenikaya received her B.Sc.(honors degree), M.Sc. and Ph.D. degrees in Electronics Engineering from Bursa Uludağ University, Bursa, Turkey in 1997, 2000 and 2007 respectively. She is currently a lecturer at Bursa Uludağ University, Bursa, Turkey. Her research interests are electromagnetic compatibility, numerical studies of electromagnetic fields and waves and microwave heating measurements.