摘要
时域有限差分法(FDTD)已经发展成为一种成熟的数值计算方法。介绍时域有限方法的一些基本性质,完美匹配层的边界条件和激励源设置。通过对完美匹配层边界条件的设置,利用Matlab软件对自由空间散射场进行了仿真,解决电磁场散射等问题,给出了在不同时间步长下的仿真结果,实现了整个求解过程的可视化。
Finite-difference time-domain method （FDTD） has developed into a mature numerical calculation method. The paper introduces the basic properties of FDTD, the perfectly matched layer boundary condition and excitation source. By setting the perfectly matched layer boundary condition, Matlab software is adopted for the simulation of the free space scattering field to solve the electromagnetic scattering problems. The simulation results in different time step are given to realize the visualization of the whole solving process.
出处
《现代电子技术》
2013年第1期140-143,共4页
Modern Electronics Technique
