Abstract
This paper presents the analysis of radiated immunity of flex cable with ground plane using transmission line equations. The conformal mapping transformation technique and the integral equations are employed to extract the equivalent RLCG parameters for canonical types and complicated types of structures, respectively. The external electromagnetic field sources are modeled as equivalent voltage and current sources in the transmission line equations. After the equivalent circuit is obtained, the induced voltage is computed via the SPICE solver. Validation with case studies shows that the approach is capable of efficiently modeling the radiated electromagnetic interference to evaluate the immunity level of devices under test.
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