An automatic mesh complexity reduction scheme for the derivation of equivalent circuits of microstrip interconnection discontinuities

This paper describes an extension of the techniques presented previously (see IEEE APS-S Intl. Symp. Proc., 1994). The purpose of the main technique that is presented here is to reduce the mesh complexity in the MoM analysis of a general planar structure. The technique is such that the information from the original dense mesh is not neglected, but rather taken into account in a different way. Using the techniques presented in this paper, we can now derive equivalent RLC-networks for general multiport microstrip interconnection discontinuities, in a fully automated way. The method is completely based on physical considerations, and does not involve any fitting procedure. Due to this, the technique is quite fast, and the resulting networks are closely related to the physical structure. We shall present an example of this network derivation procedure at the end of this paper.