“…In addition, some frequency-domain models become complex when handling nonuniform transmission lines (Tang and Mao, 2008). Some time-domain approaches for nonuniform interconnects are the two-step perturbation technique (Chernobryvko et al, 2014), the finite-difference time-domain technique (Afrooz and Abdipour, 2012), the time-step integration method (Tang and Mao, 2008), the Lax-Wendroff difference method (Dou and Dou, 2011), the implicit Wendroff method (Bran cík and Ŝev cík, 2011;Bran cík, 2011), the finite element method (Juri c-Grgi c et al, 2015) and spectral methods COMPEL 37,1 504 (Antonini, 2012). In this paper, an approach is proposed for the case when the signals on the interconnects have wide-varying frequency content and as such present major challenges for numerical simulation.…”