ROBUST ALGORITHMS FOR THE CALCULATION OF FULL-WAVE ELECTROMAGNETIC SOLUTIONS

A powerful technique is described for optimizing electromagnetic codes that involve the boundary element method and nonlinear eigenvalue pro blems. It is specifically adapted to an algorithm that handles propaga tion in periodic structures and replaces the standard determinant sear ch and linear equation solution subroutines. Through mechanical speedu p and improved numerical convergence, the run time for large cases is reduced by an order of magnitude, Details of technique, the electromag netic algorithm, and numerical studies are presented. (C) 1995 Academi c Press, Inc.