Transient analysis of lossy multiconductor transmission lines model based by the characteristics method

In this paper, we will present a low losses multiconductor transmission lines model valid both in the time and the frequency domains. This model is an extension of the characteristics method (Branin method) valid for lossless lines. Our model permits to describe the line as a quadripole whose advantage is to avoid the presupposed applied charges conditions in its extremes. This permits it to be easily introduced in the circuit simulators such as Spice, Esacap and Saber, and it is valid both in time and frequency domains. Diverse examples of applications products by the literature are presented to validate these method and to show their interests. Keywords— Characteristic method, Time domain, Transmission line, Multiconductor line, Loss, Modeling.