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The transient response, 3 dB bandwidth, and relative stability of undoped‐ and doped‐multilayer graphene nanoribbon (MLGNR) interconnects are investigated based on the mean free path (MFP) model incorporating scatterings induced by structural roughness of edges and corrugation of dielectric surface (viz., SiC, BN, and SiO2). The impact of scattering phenomenon on undoped‐MLGNRs (viz., horizontal...
This paper describes PWLFIT+, an extension to the frequency domain of PWLFIT, a new paradigm in time‐domain macromodeling for linear multiport systems, based on a piecewise‐linear (PWL) behavioral representation of the S‐parameters step response. While the impulse response of each S‐parameter is approximated as sum of delayed rectangles (rect) functions, its spectrum is interpolated as sum of the...
Transient regime effects are particularly important in fuel cells designed for vehicles. Three‐dimensional modeling of a proton exchange membrane fuel cell with a serpentine channel is presented, and the response of the fuel cell to a step‐change in the mass flow rates is analyzed by using the computational fluid dynamics techniques. After a validation study of the mathematical and numerical model,...