RF modeling of vertical interconnection between power-ground plane combined with 2D TLM

Abstract

In this paper, we present a modeling technique for finding a lumped element model of a via interconnection that can be used in conjunction with a coarse grid two-dimensional transmission line matrix method (2D-TLM) analysis. The technique allows the use of very simple 2D TLM analysis to simultaneously compute insertion loss, return loss, and isolation of multiple via transitions through a power-ground plane pair in a multilayer package. The accuracy of this technique is validated by comparison to HFSS.