Abstract

The time-domain moment method is used to investigate electric fields coupling into a vehicle placed inside a large wire-array transmission-line Nuclear Electromagnetic Pulse (NEMP) simulator. The Transverse Electromagnetic Mode (TEM-mode) transmission-line theory, image technique, and quasi-static condition are applied in calculations of coupled electric fields in the vehicle. Simulation results show that the best shielding effectiveness occurs with the condition of a perfectly grounded vehicle. It is also found that the coupled electric field inside the vehicle increases as the impedance between the vehicle and the ground plane increases.

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