Low-Frequency Magnetic Shielding of a Double-Layered Planar Shield Against a Parallel Loop

IF 2 3区 计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Electromagnetic Compatibility Pub Date : 2024-08-23 DOI:10.1109/TEMC.2024.3436551
Yiyi Jing;Sijia Liu;Jiahua Mei;Haidong Liu;Chongqing Jiao
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Abstract

This article theoretically investigates the shielding problem of a double-layered planar shield of infinite extent against the magnetic field generated by a circular loop placed parallel to the shield. First, Moser's formulation of solving the vector wave equation is extended to obtain the exact integral expressions of the shielded fields. Second, the approximate expressions are developed for electrically thick, nonmagnetic, metallic sheets. Also, the conditions to validate the approximate expressions are illimulated. Finally, the calculated results for the aluminum, the low-carbon steel and the permalloy are presented according to the NSA 94-106 setup. Meanwhile, the effects of thickness distribution and sheet-to-sheet spacing are analyzed.
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双层平面屏蔽对平行环路的低频磁屏蔽
本文从理论上研究了一个无限宽的双层平面屏蔽罩对平行于屏蔽罩的环形线圈所产生的磁场的屏蔽问题。首先,扩展了求解矢量波方程的 Moser 公式,以获得屏蔽场的精确积分表达式。其次,针对电厚、非磁性的金属片开发了近似表达式。此外,还模拟了验证近似表达式的条件。最后,根据 NSA 94-106 设置给出了铝、低碳钢和高合金的计算结果。同时,还分析了厚度分布和薄板间距的影响。
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来源期刊
CiteScore
4.80
自引率
19.00%
发文量
235
审稿时长
2.3 months
期刊介绍: IEEE Transactions on Electromagnetic Compatibility publishes original and significant contributions related to all disciplines of electromagnetic compatibility (EMC) and relevant methods to predict, assess and prevent electromagnetic interference (EMI) and increase device/product immunity. The scope of the publication includes, but is not limited to Electromagnetic Environments; Interference Control; EMC and EMI Modeling; High Power Electromagnetics; EMC Standards, Methods of EMC Measurements; Computational Electromagnetics and Signal and Power Integrity, as applied or directly related to Electromagnetic Compatibility problems; Transmission Lines; Electrostatic Discharge and Lightning Effects; EMC in Wireless and Optical Technologies; EMC in Printed Circuit Board and System Design.
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