周期结构FDTD算法的各向异性PML边界条件

Anisotropic PML B.C.in FDTD Calculation of Periodic Structures

本文建立了一种新的适用于周期FDTD计算的边界条件—周期 /各向异性PML混合边界条件 .计算验证表明 ,本文的方法改善了原来单向波边界的缺点 ,具有较高的精度 ,使周期FDTD算法进一步走向成熟 .

In this paper,a new algorithm,periodic/Anisotropic PML B.C.for periodic FDTD calculation,is introduced.The result show that the new method is better in precision than the old one and eliminate the shortcoming in the old.This work makes periodic FDTD method more convenient and accurate in use.