Dual formulations for error estimation in non‐uniform transmission lines

Abstract

A time domain discrete model for nonuniform transmission lines, based on a complementary formulation of the transmission line equations, is considered. By recasting the line equations in terms of flux and charge, one has to discretize alternatively only one of the two equations, the other being exactly verified. This approach has been widely used in electromagnetics to evaluate the discretization error. With reference to simple examples, we show how the error estimation can be used for a selective meshing of the line, leading to much better approximation with the same computational effort.

Citation

Corti, L., de Magistris, M. and Maffucci, A. (2001), "Dual formulations for error estimation in non‐uniform transmission lines", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 20 No. 4, pp. 1045-1054. https://doi.org/10.1108/EUM0000000005768