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An adaptive nested complex source beam method for electromagnetic scattering of composite conducting-dielectric objects
Engineering Analysis With Boundary Elements ( IF 3.3 ) Pub Date : 2020-07-03 , DOI: 10.1016/j.enganabound.2020.04.011
K.C. Wang , J. Liu , J.H. Xu , X.T. Fan , L.R. Zhang

A new nested complex source beam (NCSB) method based on the volume-surface integral equation (VSIE) is proposed for fast electromagnetic scattering analysis of composite conducting-dielectric objects. This scheme is based on the nested equivalent structure of the complex source beams to approximate the far-field interactions of both the RWG basis functions and SWG basis functions with an acceptable accuracy. An adaptive grouping technique is introduced in the traditional NCSB method to adaptively group the model based on the distribution of unknowns. Therefore, the new NCSB method is termed as adaptive nested complex source beam (ANCSB) method. The computational complexity and memory storage with a quasi-linear variation can be realized same as NCSB, and numerical results demonstrate the accuracy and higher efficiency than traditional NCSB for the electromagnetic scattering analysis of composite conducting-dielectric objects.



中文翻译:

复合导电介质物体电磁散射的自适应嵌套复源束法

提出了一种基于体积-表面积分方程(VSIE)的嵌套复合源束(NCSB)新方法,用于复合导电介质的快速电磁散射分析。该方案基于复杂源光束的嵌套等效结构,以可接受的精度近似估算RWG基函数和SWG基函数的远场相互作用。传统的NCSB方法中引入了一种自适应分组技术,可以根据未知数的分布对模型进行自适应分组。因此,新的NCSB方法被称为自适应嵌套复杂源波束(ANCSB)方法。准线性变化的计算复杂度和内存存储可以与NCSB相同地实现,

更新日期:2020-07-03
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