HEMP coupling to circuits inside the shielding box with a penetrative wire

摘要

In this paper, HEMP coupling to circuits inside the shielding box with a penetrative wire is studied using the FDTD method. Results show that penetrative wire can make the HEMP induced current in circuits inside the shielding box increase greatly through coupling with the incident field and scattering field of the shielding box. This is useful to estimate the HEMP coupling to electronic apparatus and systems such as radio and computer.