CONCURRENT NETWORK DIAKOPTICS FOR ELECTROMAGNETIC-FIELD PROBLEMS

This paper presents a new modification to circuit based diakoptics equ ations which allows the efficient manipulation of equivalent circuit m odels which represent Maxwell's equations. A new formulation of the di akoptics equations is given whereby torn subnetworks used to form the problem domain under consideration can be connected on a nearest neigh bour basis. This formulation allows an algorithm to be written which i s suitable for implementation on a parallel computer. In this work imp lementation is on a transputer array configured with two different top ologies. The computational efficiency of each topology is appraised an d considerable computational advantage demonstrated with respect to th e classical sequential varient of the technique. The procedure is then applied to sample electromagnetic field problems in order to verify i ts utility. Finally it is used to compute the performance of a patch m icrostrip hybrid coupler.