A sparse multiresolution technique for fast capacitance computation

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A technique for rapidly computing the capacitances of two-dimensional conducting structures is presented in this article. The method relies on a sparse multiresolution representation of the interactions between subsections of the conductors. This decomposition is used to substantially reduce the computational complexity of matrix-vector products required in the iterative solution of the method-of-movements system. It is shown that this technique leads to large CPU-time savings over those required by a standard iterative solver, and preserves high accuracy. Moreover, in contrast to the popular fast-multipole technique, the proposed method is not Green's-function specific; it can be used in conjunction with different static Green's functions representing varied configurations, including perfect electric conductors and stratified dielectric layers. © 1996 John Wiley & Sons, Inc.