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三维新型非分裂场完全匹配层吸收边界条件 被引量:5

A novel 3D non-splitted field perfectly matched layer absorbing boundary condition in FDTD computation
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摘要 研究了一种3D新型时域有限差分法(FDTD)非分裂场近似完全匹配层(NPML)吸收边界。在直角坐标系中,通过直接对麦克斯韦方程组中的空间偏导的变量进行空间坐标拉伸,得到三维非分裂场的NPML吸收边界,这种吸收边界相对于PML吸收边界编程实现简单,编程复杂度低。通过对三维算例的电磁散射分析,验证了NPML吸收边界的正确性。计算结果表明了该方法是一个完美的吸收边界,可以用于实际目标的电磁散射问题分析。 Abstract A novel 3D non-splitted field finte-difference time-domain(FDTD) ab- sorbing boundary condition (ABC) called the nearly perfectly matched layer (NPML) ABC is proposed. In the rectangular coordinate system, the variables of partial derivatives for space are directly stretched in the Maxwell^s equations, and 3D non-splitted NPML ABC is presented. Compared with the splitting PML, the NPML programs are less complex. The results show that the ABC is much simpler and easier to carry out in the FDTD computation. By the 3D numerical examples of electromagnetic scattering, the NPML ABC is verified. The results show that the ABC is a perfectly matched layer and it can be used in the actual target analysis of electromagnetic scattering problems.
出处 《电波科学学报》 EI CSCD 北大核心 2011年第1期67-72,共6页 Chinese Journal of Radio Science
基金 国家自然科学基金项目(61072002) 教育部高等学校博士点科研基金项目(20093227120018) 江苏省科学技术计划项目(BE2008107) 东南大学毫米波国家重点实验室开放基金项目(K200910) 江苏大学高级专业人才科研启动基金(07JDG063)资助的课题
关键词 完全匹配层 吸收边界 时域有限差分方法 近似完全匹配层 PML absorbing boundary condition finite difference time-domain nearly perfectly matched layer
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共引文献11

同被引文献14

  • 1杨利霞,许红蕾,孙栋,王洪金.双各向异性色散介质电磁波传播Z-时域有限差分分析[J].电波科学学报,2015,30(3):423-428. 被引量:4
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  • 8姜彦南,葛德彪,魏兵.时域有限差分并行算法中的吸收边界研究[J].系统工程与电子技术,2008,30(9):1636-1640. 被引量:3
  • 9魏兵,李小勇,王飞,葛德彪.一种色散介质FDTD通用吸收边界[J].物理学报,2009,58(9):6174-6178. 被引量:15
  • 10杨利霞,谢应涛,王袆君,王刚.一种适于1维磁等离子体电磁波传输特性的FDTD分析[J].强激光与粒子束,2009,21(11):1710-1714. 被引量:6

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