Simple transmission line model suitable for the electromagnetic pulse coupling analysis of twisted-wire pairs above ground

Abstract

A simple transmission line (TL) model is developed for analyzing the electromagnetic pulse (EMP) coupling of a twisted-wire pair (TWP)-TL above a ground plane, illuminated by a external plane wave. To accurately take into account the geometry of the TWP-TL, the TWP-TL is modelled as a cascade of a uniform segment with a different height from the ground plane. Numerical examples are used to illustrate the validity of the proposed TL model for the EMP coupling analysis of TWP-TL.