Abstract
In this study, we analyze the coupled signal for various cable parameters when a high-altitude electromagnetic pulse(HEMP) is incident on a cable connected to an EMP protection shelter. The structural conditions or operating environments vary depending on the purpose of use, such as to supply power or transmit communication signals to the internal devices of the shelter. Using the cable equivalent model and simulations, we interpret the coupled signal that is induced in the cable according to the presence or absence of a shielding layer, number and thickness of inner core wires, braiding conditions of the shielding layer, cable length, height from the ground plane, and whether the input terminal is grounded. We compare and analyze the induced current according to the cable parameters based on an RG58 coaxial cable.
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