中文说明：一维、二维和三维FDTD代码可以在这里找到。具有简单辐射边界条件的一维FDTD代码，具有PML吸收边界条件的二维FDTD TE代码
English Description：
The one dimension two dimension and three dimension FDTD codes can be found here.. 1-D FDTD code with simple radiation boundary conditions, 2-D FDTD TE code with PML absorbing boundary conditions 3-D FDTD code with PEC boundaries are given. the program describes the time domain FDTD. The electric and magnetic field at each instant of time is given