Analysis on electromagnetic pulse coupling inside enclosure with aperture cable based on BLT equation

In order to analyze the cable coupling characteristic of electromagnetic pulse inside enclosure with aperture, this paper uses the BLT equation to the calculate cable terminal response of the electromagnetic pulse enclosure with aperture. Choosing a set of cables as analysis object inside enclosure with aperture, then using software CST analyzes the impact of different size of aperture on electric field strength and transmission line inside enclosure with aperture, when the type of cable is different, using software CST analyzes the influence of electromagnetic pulse on cable inside enclosure with aperture. Simulation results show that when the size of aperture is different, electric field strength inside enclosure with aperture is different, and transmission line terminal response will be different. When the type of cable is different, electromagnetic pulse passed into enclosure with aperture produces induced voltage on the cable is also different.