Analysis of electromagnetic scattering from an overfilled cavity in the ground plane
Analysis of electromagnetic scattering from an overfilled cavity in the ground plane
复制标题
DOI：
10.1016/j.jcp.2005.11.007
复制
发表时间：
2006-07
期刊：
影响因子：
--
通讯作者：
A. Wood
中科院分区：
文献类型：
--
作者：
A. Wood
在本文中，我们考虑的时谐平面波的散射由一个突出的空腔埋在PEC接地平面。在封闭腔体的半圆上引入人工边界条件，将无限外域的场耦合到内部。导出了TM和TE偏振的变分公式，并证明了弱解的存在唯一性。并进行了有限元误差分析。数值实验证明了该方法的有效性和准确性。
In this paper, we consider the scattering of the time-harmonic plane wave by a protruding cavity embedded in the PEC ground plane. An artificial boundary condition is introduced on a semicircle enclosing the cavity that couples the fields from the infinite exterior domain to those inside. Variational formulations for the TM and TE polarizations are derived and existence and uniqueness of weak solutions are established. Finite element error analysis is also performed. Numerical experiments demonstrate the efficiency and accuracy of the method.