EFFICIENT USE OF CLOSED-FORM GREENS-FUNCTIONS FOR THE ANALYSIS OF PLANAR GEOMETRIES WITH VERTICAL CONNECTIONS

An efficient and rigorous method for the analysis of planarly layered geometries with vertical metallizations is presented. The method is ba sed on the use of the closed-form spatial-domain Green's functions in conjunction with the method of moments (MoM). It has already been demo nstrated that the introduction of the closed-form Green's functions in to the MoM formulation results in significant computational improvemen t for the analysis of planar geometries. However, in cases of vertical metallizations, such as shorting pin's, via holes, etc., there are so me difficulties in incorporating the closed-form Green's functions int o the MoM formulation. In (his paper, these difficulties are discussed and their remedies are proposed. The proposed approach is compared to traditional approaches from a theoretical point of view, and the nume rical implementation is demonstrated through some examples. The result s are also compared to those obtained from the commercial software em by SONNET.