基于改进Yee网格的FDTD差分格式及程序实现

Based on improvement of YEE grid's FDTD difference scheme and program realization

Yee网格中电场各分量或磁场各分量不在同一点,若要计算一点的电矢量或磁矢量,必须借助各种插值方法。对传统的Yee网格作必要的改进,克服了Yee网格的不足,而且用基于这种改进网格的差分格式计算任一电磁分量时,用到了其周围更多的数据,使计算精度得到了提高。

For Yee grid each component in the electric field or magnetic field is not in the same point,if to compute the point of electrical or magnetic vector,the vector must be with the aid of various interpolation methods. It makes necessary improvement to traditional Yee grid, overcomes the disadvantages of Yee grid, and any difference scheme based on the improved grid computing electromagnetic component,uese its surroundings more data,the calculation accuracy is also improved.