A hybrid FD-MoM technique for predicting shielding effectiveness of metallic enclosures with apertures

被引：53

作者：

Feng, C ^{[1
]}

Shen, ZX ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2005年 / 47卷 / 03期

关键词：

finite difference method; hybrid technique; method of moments (MoM); shielding effectiveness;

D O I：

10.1109/TEMC.2005.851726

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a hybrid technique combining the finite-difference (FD) method and the method of moments (MoM) in the frequency domain is proposed to predict the shielding effectiveness of rectangular conducting enclosures with apertures under external illumination. The interior and exterior regions of the enclosure are analyzed separately by employing the field equivalence principle. Internal electromagnetic fields are discretized using the (FD) method, while external fields are formulated by the MoM. Enforcement of continuity of the tangential magnetic field over the aperture surface gives the desired equation to solve for electromagnetic fields everywhere. Numerical results for the shielding effectiveness of a rectangular cavity with apertures calculated by the new hybrid technique are presented and validated by comparing with experimental data.

引用

页码：456 / 462

页数：7

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