Coupling effect of high‐altitude electromagnetic pulse of two‐pin electric explosive device based on a V‐type antenna model

Abstract

Concentrating on the two-pin electric explosive devices (EEDs), this paper proposes a coupling model of a V-type antenna according to the typical scenario that the pin wire can present a certain angle. Based on theoretical analysis, numerical simulations are performed to obtain the different angles of antenna patterns, the changes of the reflection coefficients, the gain of coupling current, and the influence law of coupling energy, which are verified by experimental measurements. The results show that the coupling current and energy increase rapidly with the increase of the angle when the included angle between the two-pin wires exceeds 60°. When the angle reaches 90°, the coupling energy would increase to tens of μJ, which will bring certain safety risks. When the included angle rises to 180°, the coupling energy will reach the peak. The conclusion of this investigation is helpful to the environmental adaptability of high-altitude electromagnetic pulse (HEMP) for EEDs.