Analysis of Characteristics of the HEMP Coupling Signal for a Line Over Ground

Lee, Jin-Ho; Kwon, Joon-Hyuck; Shin, Guy-Beom; Kang, Rae-Choong

Journal of the Korea Institute of Military Science and Technology 2010;13(6):1172-1179.

Jin-Ho Lee, Joon-Hyuck Kwon, Guy-Beom Shin, Rae-Choong Kang

접지면 위 도선에 대한 고고도 전자기 펄스 신호의 결합 특성 분석

이진호, 권준혁, 신규범, 강래충

국방과학연구소

Abstract

Since HEMP has the very short rising time and propagates widespreadly with several tens of kV/m, it threatens most of systems in its cover range. Therefore, it is important to research coupling mechanism into systems and establish countermeasures for the HEMP to protect systems effectively. This paper analyzed characteristics and trends of currents to be induced at the load of a line which is located over ground with different conditions such as polarization, incidence angle, line length and height etc. We applied double exponential waveform as the HEMP shape and used BLT method to analyze the coupling route into the line. Also, we compared the simulation data of chain matrix modeling to verify reliability of BLT modeling. In the result, two data is almost agreed.

Key Words: High-altitude ElectroMagnetic Pulse(HEMP), Baum-Liu-Tesche(BLT)