Optimization of the PML efficiency in 3-D TLM method
Optimization of the PML efficiency in 3-D TLM method
复制标题
3-D TLM 方法中 PML 效率的优化
DOI：
10.1109/22.848490
复制
发表时间：
2000
影响因子：
4.3
通讯作者：
D. Pompei
中科院分区：
文献类型：
--
作者：
J. Dubard;D. Pompei
本文给出了最近提出的用于实现三维传输线矩阵（TLM）方法中Berenger的PML的新的完全匹配层对称凝聚节点（PMLSCN）的完整推导过程。为了更好地理解TLM模拟中PML的行为，进行了TLM和时域有限差分实验之间的比较。特别是，与PML SCN实现数值电导率值的方式被认为是。波导和微带天线的TLM仿真证明，使用这种新的PML SCN改善了TLM中的吸收边界条件。
In this paper, the complete derivation of the new perfectly matched layer symmetrical condensed node (PML SCN) recently proposed for the implementation of the Berenger's PML's in the three-dimensional transmission-line matrix (TLM) method is given. Several comparisons between TLM and finite-difference time-domain experiments are performed in order to better understand the behavior of PML's in TLM simulations. In particular, the way to implement the numerical conductivity values with the PML SCN is considered. TLM simulations of waveguide and microstrip antennas are finally presented to prove that the use of this new PML SCN improves the absorbing boundary conditions in the TLM.