Application of the Leapfrog ADI-FDTD Method and PML Boundary Condition to Dielectric

摘要

The leapfrog alternating direction implicit finite difference time domain (ADI-FDTD) method is applied to analyze the response characteristics of dielectric under electromagnetic pulse (EMP) with prefect matched layer (PML) boundary condition. It can deal with electrically large object with unconditionally stability and less computational expenditures as its advantage. The two-dimensional field of computational region under exaction source in time domain, which is based on the leapfrog ADI-FDTD method and PML boundary condition, is realized with Matlab.