Plane Wave Coupling to Overhead Lines Over Stratified Earth

This paper deals with the study of transients in multiple conductor transmission line subjected to an EMP wave disturbance and located above a lossy homogeneous stratified earth. By means of the telegrapher's equation model, we derive a general expression for a Fourier transform of the end voltages and currents. The losses in the ground are described by frequency-dependent line parameters that take into account of stratification and both displacement and conduction currents in the layered soil. The transient voltages and currents are obtained by a discrete inverse Fourier transform.