Parallelized simulation for large flat-plate bounded wave EMP simulator with lumped terminator

Parallelized finite-difference time-domain(FDTD) method for simulating the bounded wave electromagnetic pulse (EMP) simulator with lumped terminator and parallel plate is presented. The effects of several model-parameters of simulator to the electric fields in the working volume are simulated and analyzed. The results show that (1) if the width of below PEC plate is (or is bigger than) 1.5 times as that of upper plate of working volume, the projection length of front transitional section does not have a significant effect on the rise-times of electric fields at the points near the front transitional section, and the rise-times of electric fields at the points near the working volume center decrease as the projection length increases, but the decrease of rise-time reduces. (2) if the projection length of the front transitional section's fixed, the fast rise-times of electric fields in working volume can't be got by increasing or decreasing the height of simulator as possible. if the projection length is 31.68m, the optimal height of simulator is 11.2m.