Vol. 14, No. 2, August 2001, 253--270

A NUMERICAL PROCEDURE FOR SOLVING SKIN EFFECT INTEGRAL EQUATION IN THIN STRIP CONDUCTORS

Dragutin M. Veličković and Slavoljub R. Aleksić

Abstract: The new integral equation analysis for skin effect in thin strip conductor is presented. The analytical, iterative and numerical procedure for solving this integral equation is proposed. The numerical procedure is based on the point matching method and polynomial approximation for current density distribution in thin strip conductor. The proposed procedure can be successfully used in skin effect analysis of a large number of strip conductors with various cross sections (flat, circular, elliptical, parabolic, as well as cross section with sharp edges such as L, T, H profiles). The obtained numerical results converge very quickly with increasing of degrees of polynomial current approximation even in the cases when skin effect level is significant. The theoretical investigations are supported by several examples and the obtained results for current density distribution in strip conductors and for resistance and inductance per unit conductors length are presented.

Key words: Skin effect, strip conductors, polynomial approximation, integral equation.

fu07.pdf 277 kB