论文标题
有限周期性结构的基于FDTD建模的一种方便方法
An Expedient Approach to FDTD-based Modeling of Finite Periodic Structures
论文作者
论文摘要
本文提出了一种有效的FDTD技术，用于确定与有限尺寸的2D和3D周期结构相互作用的电磁场。该技术结合了周期性的边界条件---远离结构边缘的模型---与结构边缘附近的磁场进行独立的模拟。结果表明，该算法有效地确定了田间收敛到无限周期性情况所需的周期性结构的大小。该技术的数值验证说明了与算法伴随的节省。
This paper proposes an efficient FDTD technique for determining electromagnetic fields interacting with a finite-sized 2D and 3D periodic structures. The technique combines periodic boundary conditions---modelling fields away from the edges of the structure---with independent simulations of fields near the edges of the structure. It is shown that this algorithm efficiently determines the size of a periodic structure necessary for fields to converge to the infinitely-periodic case. Numerical validations of the technique illustrate the savings concomitant with the algorithm.
