一个C语言实现的三维FDTD的源代码，用CPML吸收边界条件，激励源设置为脉冲源，对一个偶极子天线进行了FDTD仿真。-This C code implements the finite-difference time-domain solution of Maxwell s curl equations over a three-dimensional. Cartesian space lattice. The grid is terminated by CPML ABCs. The t