Numerical Analysis and Design for Subnanosecond EMP Simulator Based on Finite Difference-Time Domain Method

Theoretical analysis,simulated numerically,and experiment for subnanosecond EMP simulator are carried out in this paper.Leading edge rise time of the subnanosecond EMP simulator can reach subnanoseconds.The stability is good.Distribution of the electric-field is uniform and can satisfy various test requirements.During the development of the subnanosecond EMP simulator,we have simulated numerically the transmission and spatial distribution of the electric-field by Finite Difference-Time Domain method and contour integral method.From the data the test zone of the EMP simulator is determined.The actual spatial distribution of the electric-field agrees well the numerical results.