New method to solve electromagnetic shielding problems for a thin cylindrical shell of arbitrary cross section

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作者：
机构：
[1] Liu, B.L.
[2] Wang, Y.X.
[3] Ma, X.S.
来源：
Liu, B.L. | 2001年 / Chinese Institute of Electronics卷 / 29期
关键词：
Boundary conditions - Boundary element method - Calculations - Electromagnetic fields - Electromagnetic shielding - Integral equations - Radar cross section - Shells (structures) - Thin walled structures - Wave equations;
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摘要：
A new method to solve the electromagnetic shielding problems of a thin cylindrical shell of arbitrary cross section is presented. On the basis of averaged boundary conditions, we use the theorem of discontinuity for the normal derivative of a single-layer scalar wave function. Integral equations of electromagnetic shielding for the thin cylindrical shell of arbitrary cross section are derived, and they are solved by using the method of boundary elements. Compared with the solution obtained by using precise boundary conditions, the method presented in this paper is very simple and convenient. The distribution of electromagnetic fields in the free space outside the shell can be calculated with satisfactory accuracy.
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