Nonconformal Domain Decomposition Methods for Solving Large Multiscale Electromagnetic Scattering Problems
Nonconformal Domain Decomposition Methods for Solving Large Multiscale Electromagnetic Scattering Problems
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DOI：
10.1109/jproc.2012.2217931
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发表时间：
2013-02
影响因子：
20.6
通讯作者：
Z. Peng;Kheng-Hwee Lim;Jin-Fa Lee
中科院分区：
文献类型：
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作者：
Z. Peng;Kheng-Hwee Lim;Jin-Fa Lee
在本文中，我们提出了一种具有挑战性的大多尺度电磁散射问题，即部分涂层复合材料喷气飞机模型在x波段的平面波散射。本文首先总结了新开发的积分方程域分解方法（IE-DDM）在计算喷气飞机平面波散射中的应用，但该方法既没有介质，也没有损耗薄涂层。我们通过采用两种额外的计算电磁学（CEM）技术来计算带有介质和损耗薄涂层的飞机的散射：一种用于计算可穿透介质目标的电磁（EM）散射的广义组合场积分方程（G-CFIE）方法，以及一种专门用于解决部分涂有损耗薄材料的完美电导体（PEC）目标的混合有限元和边界元方法。
In this paper, we present our efforts in combating a challenging large multiscale electromagnetic scattering problem, viz. a plane-wave scattering from a mockup partially coated composite jet aircraft at X-band. We first summarize the application of the newly developed integral equation domain decomposition method (IE-DDM) to compute the plane-wave scattering from the jet aircraft, however with neither dielectrics nor lossy thin coatings. We proceed to compute the scattering from the aircraft with dielectrics and lossy thin coatings by employing two additional computational electromagnetics (CEM) techniques: a generalized combined field integral equation (G-CFIE) method to calculate electromagnetics (EM) scatterings from penetrable dielectric targets, and a hybrid finite elements and boundary elements method tailored specifically to address perfect electric conductor (PEC) targets partially coated with lossy thin materials.