WAVELET-BASED ADAPTIVE SOLUTION FOR THE NONUNIFORM MULTICONDUCTOR TRANSMISSION-LINES

A time-domain technique for the solution of arbitrary nonuniform multi conductor transmission lines (NMTL's) is presented. The technique is b ased on a weak formulation of the NMTL equations obtained through spat ial expansion of the voltage and current vectors into biorthogonal wav elet functions. Wavelets allow adaptive representations of the solutio n by using few expansion coefficients, with any fixed approximation or der, The set of significant expansion coefficients is determined autom atically from the solution, which can be computed very efficiently. A numerical example illustrates the high adaptivity of the method.