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Analytical Methods for Evaluating the Characteristics of Noise Suppression Sheets
IEEE Transactions on Electromagnetic Compatibility ( IF 2.1 ) Pub Date : 2022-04-14 , DOI: 10.1109/temc.2022.3157259 Eiichi Sano 1 , Masayuki Ikebe 1
IEEE Transactions on Electromagnetic Compatibility ( IF 2.1 ) Pub Date : 2022-04-14 , DOI: 10.1109/temc.2022.3157259 Eiichi Sano 1 , Masayuki Ikebe 1
Affiliation
Noise suppression sheets (NSS) composed of magnetic materials are widely used to mitigate the electromagnetic (EM) emission of radiation from electronic equipment as well as EM interference between devices within it. Numerical full-wave EM simulators, such as a finite-difference time-domain method, have been essential to design NSS. Although numerical EM simulations are rigorous, they require large memory and CPU time. This article validates an analytical transmission-line method for calculating the inter-decoupling ratio of NSS measured with a pair of loop antennas. Furthermore, this article devises a simple method on the basis of a variational method and EM duality concept for calculating the transmission attenuation power ratio of NSS placed on a microstrip line. The devised method is shown to be able to reproduce the measured transmission attenuation power ratios of commercially available NSS within 10% accuracy and with computational time much shorter than numerical full-wave EM simulators.
中文翻译:
评价隔音板特性的分析方法
由磁性材料组成的噪声抑制片 (NSS) 被广泛用于减轻电子设备辐射的电磁 (EM) 发射以及其中设备之间的电磁干扰。数值全波电磁模拟器,例如有限差分时域方法,对于设计 NSS 至关重要。尽管数值 EM 模拟是严格的,但它们需要大量内存和 CPU 时间。本文验证了一种分析传输线方法,用于计算用一对环形天线测量的 NSS 的相互去耦比。此外,本文设计了一种基于变分法和EM对偶概念的简单方法,用于计算放置在微带线上的NSS的传输衰减功率比。
更新日期:2022-04-14
中文翻译:
评价隔音板特性的分析方法
由磁性材料组成的噪声抑制片 (NSS) 被广泛用于减轻电子设备辐射的电磁 (EM) 发射以及其中设备之间的电磁干扰。数值全波电磁模拟器,例如有限差分时域方法,对于设计 NSS 至关重要。尽管数值 EM 模拟是严格的,但它们需要大量内存和 CPU 时间。本文验证了一种分析传输线方法,用于计算用一对环形天线测量的 NSS 的相互去耦比。此外,本文设计了一种基于变分法和EM对偶概念的简单方法,用于计算放置在微带线上的NSS的传输衰减功率比。