Challenges in Transmission Line Modeling at Multi-gigabit Data Rates

Abstract

Abstract.A signal trace on a PCB is modeled as a transmission line characterized by four parameters: R, L, C, and G, specified per unit length. A field solver is usually used to determine these frequency dependent parameters for a given trace geometry. This paper describes most recent trends in modeling PCB (Printed Circuit Board) interconnect traces in a context of current design requirements for multi-gigabit data interfaces.