Electromagnetic pulse threats to electronic information system and corresponding protection measures

Electromagnetic pulse (EMP) radiation shall seriously disturb electronic information system. The EMP energy coupled from different approaches can even destroy semiconductor elements inside the equipment, make the system to function improperly. Several expressions of minatory EMP are investigated in this paper. The coupling characteristics and threat mechanism of EMP radiation entering into electronic information system are analyzed, and the EMP protection design methods for electronic information system are proposed in this paper.