Hybrid solutions for large-impedance coated bodies of revolution
Hybrid solutions for large-impedance coated bodies of revolution
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大阻抗涂层旋转体的混合解决方案
DOI：
10.1109/tap.1986.1143761
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发表时间：
1986
影响因子：
5.7
通讯作者：
Dau
中科院分区：
文献类型：
--
作者：
L. Medgyesi;Dau
建立了满足阻抗边界条件的涂层完美导电旋转体的电磁散射解。由阻抗（Leontovich）边界条件引起的积分方程通过使用矩量法（MM）技术以及由物理光学（PO）导出的表面电流的Ansatz和针对非完美导电表面修正的Fock理论来求解。MM解用两个积分（伽辽金）算子表示。采用伽辽金展开的形式得到一个对称的MM系统矩阵。混合解决方案是专门针对BOR的，尽管该方法也适用于更广泛的散射体类别。将结果与满足阻抗边界条件的可穿透球面散射体的Mie解和最近发表的非球面散射体的MM解进行了比较。
Electromagnetic scattering solutions are developed for coated perfectly conducting bodies of revolution (BOR) that satisfy the impedance boundary condition. The integral equation arising from the impedance (Leontovich) boundary condition is solved by use of the method of moments (MM) technique along with an Ansatz for the surface currents that is derived from physical optics (PO) and the Fock theory that is modified for imperfectly conducting surfaces. The MM solution is expressed in terms of two integral (Galerkin) operators. The form of the Galerkin expansion used results in a symmetric MM system matrix. The hybrid solution is specialized for BOR's although the approach is applicable to a broader class of scatterers as well. The results are compared with the Mie solution for penetrable spherical scatterers, which satisfy the impedance boundary condition, and with recently published MM solutions for nonspherical scatterers.