Parametric study on shielding effectiveness of graphene based bilayer structure

IF 0.4 Q4 ENGINEERING, MULTIDISCIPLINARY Pamukkale University Journal of Engineering Sciences-Pamukkale Universitesi Muhendislik Bilimleri Dergisi Pub Date : 2023-01-01 DOI:10.5505/pajes.2023.60137

Sunay Güler, S. Yenikaya

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Abstract

In this study, it is aimed to increase shielding effectiveness of electromagnetic shields by coating with graphene sheet. Firstly, graphene monolayer is modeled numerically and it is observed that it is in good agreement with the analytical findings. Then, the reflection loss of bilayer screen that is formed by coating the back surface of an aluminum plate with graphene sheet, is analyzed analytically and numerically. Finally, a shielding enclosure in which inner surfaces are coated with graphene sheet is modeled and the change of shielding effectiveness of the shielding enclosure with respect to the chemical potential and temperature values of graphene sheet is investigated. It is obtained that shielding effectiveness of shielding enclosure decays depending on the increase of chemical potential of graphene sheet while the temperature parameter remains fixed. Shielding effectiveness values are obtained close to each other at the temperature 300 K and above depending on the increase of temperature of graphene sheet while the chemical potential remains fixed.

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石墨烯基双层结构屏蔽效能的参数化研究

本研究的目的是通过涂覆石墨烯片来提高电磁屏蔽的屏蔽效能。首先，对单层石墨烯进行了数值模拟，结果与分析结果吻合较好。然后，对在铝板背面涂覆石墨烯片形成的双层屏的反射损耗进行了解析和数值分析。最后，建立了内表面涂覆石墨烯片的屏蔽罩模型，研究了屏蔽罩的屏蔽效能随石墨烯片化学势和温度的变化规律。在温度参数不变的情况下，屏蔽罩的屏蔽效果随石墨烯片化学势的增大而衰减。在化学势保持不变的情况下，在300 K及以上温度下，随着石墨烯片温度的升高，得到的屏蔽效能值非常接近。

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Pamukkale University Journal of Engineering Sciences-Pamukkale Universitesi Muhendislik Bilimleri Dergisi ENGINEERING, MULTIDISCIPLINARY-

自引率

25.00%

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审稿时长

25 weeks