Crosstalk analysis in graphene multiconductor transmission lines

Abstract

The fundamental modes supported by a pair of identical graphene nanoribbons in the presence of a ground plane are analyzed. Dispersion, attenuation, and characteristic impedance of each mode are determined and an equivalent circuit is extracted. An efficient full-wave approach is adopted, based on a Method-of-Moments discretization of the relevant electric-field integral equation in which the graphene is modeled through a simple local conductivity. A spatial-domain formulation is adopted as it allows for efficiently treating nanoribbons with wide transverse separations and having in mind the future inclusion in the simulation model of the spatial nonuniformity possibly exhibited by the graphene conductivity.