Comparison of Radiated Susceptibility of a Digital IC between Electric Field Coupling and Magnetic Field Coupling Based on a Circuit Apparoach

In this study, the radiated susceptibility of a microstrip line with a digital IC is investigated. A circuit approach is used by converting external incident electric and magnetic fields into equivalent current and voltage sources, respectively, and the interference voltages induced at IC pins are simulated by using a circuit simulator. As a result, it is found that the digital IC exhibits a higher susceptibility for the magnetic field coupling compared to the electric field coupling.