Patent ID: 6353801
Filing Date: 2002-03-05
Classification: G01R,G06F

Abstract:
A method for operating a computer to determine the electrical characteristics of a passive planar structure, said method comprising the steps of:defining a first mesh on said structure, said first mesh dividing said structure into polygons; defining a surface current in said structure comprising a first weighted sum of a first set of basis functions; calculating the weights of said first basis functions in said first weighted sum by solving Maxwell's equations; refining said mesh by dividing each polygon into a plurality of sub-polygons; defining said surface current as a second weighted sum of a second set of basis functions, said second set of basis functions comprising said first set of basis functions and a plurality of extension basis functions representing the additional degrees of freedom introduced by said refined mesh; and calculating the weights of said second basis functions in said second weighted sum by solving Maxwell's equations.