NUMERICAL SOLUTIONS OF WAVE PROPAGATION IN DISPERSIVE AND LOSSY TRANSMISSION LINES

摘要

A numerical model is proposed for application to dispersive transmission lines. Numerical results are compared with the analytical solution of the dispersive wave equation based on the wave propagation solved by means of finite element method in one dimension case and Newmark- method in the time domain. This comparison between numerical and analytical solutions validates this numerical method as a suitable method to study wave propagation in dispersive transmission lines. Several practical applications including electromagnetic propagation in a plasma and the transient response of a surge wave in high-voltage transformer windings are presented in this paper. [Vol. 9, No. 2 (1994), Special Issue on The Numerical Computation of Low Frequency Electromagnetic Fields, pp 57-66]