Singularity expansion method (SEM) for long terminated transmission lines

This paper deals with the calculation of first layer SEM poles of a long loaded transmission line above conducting ground excited by high frequency electromagnetic fields. This set of poles yields the main contribution to the susceptibility of the transmission line to the pulse excitations. For the case of an open-circuit wire, SEM poles are obtained in explicit form. The comparison of the results of this SEM approach with those of a numerical simulation gives a good agreement.