An Approximate PML Applied to Cylindrical and Spherical Coordinate Sectors
An Approximate PML Applied to Cylindrical and Spherical Coordinate Sectors
复制标题
DOI：
10.1109/lmwc.2018.2853565
复制
发表时间：
2018-09
影响因子：
3
通讯作者：
Y. Ando
中科院分区：
文献类型：
--
作者：
Y. Ando
这封信提出了一个近似完美匹配层（PML），适用于柱面和球坐标扇区。所提出的PML是基于复杂坐标拉伸的，它可以截断时域有限差分（FDTD）网格，不仅在$\rho $ -和$r$ -坐标，而且在$\phi $ -和$\theta $ -坐标。通过数值模拟验证了PML的吸收性能。
This letter proposes an approximate perfectly matched layer (PML) that is applicable to cylindrical and spherical coordinate sectors. The proposed PML is based on complex coordinate stretching, which enables the truncation of finite-difference time-domain (FDTD) grids, not only at the $\rho $ - and $r$ -coordinates but also at the $\phi $ - and $\theta $ -coordinates. The absorption performance of the PML is demonstrated through numerical simulations.