混合FEMFIPWA求解复杂旋转体散射(英文)  

Hybrid FEM-FIPWA for Scattering from Complex Bodies of Revolution

作　　者：芮锡[1] 胡俊[2] 柳清伙[3] 

机构地区：[1]中国西南电子技术研究所,成都610036 [2]电子科技大学电子工程学院,成都610054 [3]杜克大学电气和计算机工程学院

出　　处：《电讯技术》2013年第1期93-98,共6页Telecommunication Engineering

摘　　要：提出了一种基于混合有限元与快速非均匀平面波算法求解复杂旋转体的散射问题。内部电场采用基于点元和边元基函数的有限元方法计算,同时在旋转体的外表面的场采用基于三角基函数及脉冲基函数的快速非均匀平面波算法计算。采用这种方法处理复杂大尺度的旋转体问题能节省计算的内存和计算时间,算例验证了算法的准确性和有效性。A method based on hybrid finite element method（FEM） and fast inhomogeneous plane wave algorithm （FIPWA） is proposed to solve the electromagnetic scattering problem for bodies of revolution （BOR） with inho- mogeneous, composite materials. The FEM with mixed edge-based and node-based elements is used for repre- senting the interior electric field, while the FIPWA is used as the exact boundary condition, hybrid triangular and pulse basis functions are used for representing the electric field and magnetic field on the boundary. Both the memory and CPU time requirements are reduced for large scale BOR problems. Numerical results are given to demonstrate the validity and the efficiency of the Proposed method.

关 键 词：复合材料 旋转体 电磁散射 快速非均匀平面波算法 有限元法 

分 类 号：TN[电子电信]