The electromagnetic leakage of the bounded-wave EMP simulator during the simulation of LEMP

Bounded-wave EMP Simulator is often used in the simulation of the lightning electromagnetic environment. When simulate the lightning electromagnetic environment EMP simulator is working in the environment of high voltage and high field intensity. The simulator has an opening structure, and it will inevitably bring a certain radiation to its surroundings. The effect imposed onto the electronic equipment by the leak of the simulator should be considered. In this paper, the leakage of the EMP simulator is analyzed. Two states were taken into consideration: when the simulator is unloaded and when the equipment under-test (EUT) is placed in the simulator. The numerical result shows that the field intensity of the leakage falls rapidly as the distance from the simulator edge increase. When the distance from the working region of the simulator is more than 3.5m, the radiation field is less than twenty percent of the edge.