Circuit Models to Study the Radiated and Conducted Susceptibilities of Multiconductor Shielded Cables Connected to Non-linear Load

This paper presents Circuit Models which are developed for the analysis of the radiated and conducted susceptibilities of nonuniform shielded coaxial cables. In order to obtain the voltage and current distributions, a two-step procedure is performed. First, the cables are subdivided into several uniform sections. Second, the Branin’s mode is used to obtain the voltage and current distributions. This model can be used directly in the analysis of both time-domain and frequency-domain, and it has the ability to be used without the need of setting the preconditions for charges which are applied to its ends. In this paper, three examples of applications in the time and frequency domains are presented in order to validate our model. The first example focuses on a coaxial shielded cable to analyze both the conducted and radiated immunity, while the second example focuses on a nonuniform coaxial shielded cable. The third example presents a complex configuration of a coaxial cable which has been exposed to an electromagnetic field incident. Finally, the performed simulations and obtained results will be thoroughly described and analyzed.