Skin-effect considerations on transient response of a transmission line excited by an electromagnetic pulse.

The electromagnetic pulse can have a very serious damaging effect to modern digital and analog equipment. Many analytical models to solve the susceptibility problems have been developed, but emphasis was mainly on lossless transmission lines. In this thesis, the transient skin-effect resistance is taken into account to characterize a single transmission line above a lossy ground exposed to a time-varying electromagnetic field. As a reuslt of incorporating the skin-effect phenomena and the equivalent sources due to the external fields into the classical transmission line theory, an integral-differential equation is derived. By means of a mixed time-domain finite differences (TD-FD) scheme, the induced voltage and the current at any point on the line is predicted and discussed