Differences Between NSA 94–106 and IEEE Std. 299 Setups for Low-Frequency Magnetic Shielding Effectiveness Characterization: A Study Using Numerical Simulations

IF 0.9 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Lirim Koraqi;Tim Claeys;Johan Catrysse;Davy Pissoort
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Abstract

This letter employs simulation findings to demonstrate the practical reasons why the low-frequency magnetic shielding effectiveness (SE) is different when characterized using two parallel loops (NSA 94-106) or two coplanar loops (IEEE Std. 299). It shows how the change in the loop radius impacts the SE for the NSA 94–106 setup rather than for the IEEE 299 one. The observation is rooted in the difference of the wave impedance for both scenarios. Additionally, this letter elucidates the reason behind the wave impedance difference.
NSA 94-106 和 IEEE Std:数值模拟研究
这封信利用仿真结果来说明,在使用两个平行环路(NSA 94-106)或两个共面环路(IEEE 标准 299)时,低频磁屏蔽效能(SE)不同的实际原因。它显示了环路半径的变化如何影响 NSA 94-106 设置的 SE,而不是 IEEE 299 设置的 SE。这一观察结果源于两种情况下波阻抗的不同。此外,这封信还阐明了波阻抗差异背后的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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