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

摘要

HEMP coupling to circuits inside the shielding box with a penetrative wire is studied using the FDTD method. Results show that a penetrative wire can make the HEMP induced current in circuits inside the shielding box increase greatly through coupling with the incident field and the scattering field of the shielding box. This is useful for estimating the HEMP coupling to electronic apparatus and systems such as radios and computers.