volume | PIER Journals

2016-04-26

Near-Ground Transient Field of a High-Altitude Electromagnetic Pulse (HEMP) Considering Nonlinear Air Conductivity and Ground Reflection

Hong-Cheng Wei,

Dr. Hong-Cheng Wei

Department of Electrical Engineering and the Graduate Institute of Communication Engineering

National Taiwan University

China

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Jean-Fu Kiang

Prof. Jean-Fu Kiang

Department of Electrical Engineering

National Taiwan University

China

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Progress In Electromagnetics Research M, Vol. 48, 45-54, 2016

doi:10.2528/PIERM16021901

Abstract

Transient field of a high-altitude electromagnetic pulse (HEMP) induced near ground is simulated, of which the ground reflection can not be neglected. The Jefimenko's equation is applied to compute the incident electric field near the ground, attributed to both the primary and the secondary currents in the source region. The field-dependent air conductivity in the source region is obtained by solving three nonlinear governing equations iteratively, and the reflected field is computed in the frequency domain.

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Hong-Cheng Wei, and Jean-Fu Kiang, "Near-Ground Transient Field of a High-Altitude Electromagnetic Pulse (HEMP) Considering Nonlinear Air Conductivity and Ground Reflection," Progress In Electromagnetics Research M, Vol. 48, 45-54, 2016.
doi:10.2528/PIERM16021901

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