摘要
采用电场积分方程,准确地计算了电大尺寸导体附近线天线的辐射方向图,利用快速多极子算法加速了整个迭代求解过程中的矩阵和矢量相乘.数值计算结果表明,这种结合预处理共轭梯度法、快速傅里叶变换以及后期迭代的快速多极子算法,其计算效率远远高于一般的矩量法,是一种非常有效的求解电大尺寸复杂电磁问题的方法.
Electric field integral equation is used lo obtain the strict and accurate radiation pattern, when the wire antenna is placed near a large conductor. In the solving process, the fast multipole method (FMM) is used to perform the matrix-vector products and accelerate the resolution of the linear system. Numerical computing tests show that the FMM, which combines the preconditioned conjugate gradients method, the fast Fourier transform and post-iteration, is a most effective technique for solving the large-scale electromagnetic problems.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2002年第6期725-728,共4页
Journal of Xidian University
基金
国家自然科学基金资助项目(69871021)
