N Coupled Transmission Line Parameter Extraction

Hello,
I am facing the following problem: Say that I have a system of N coupled transmission lines and I am simulating the system with an EM simulator. Based on the resulting S parameter matrix, how can I extract the Capacitance, Inductance, Resistance and Conductance matrices? Then, from these, how can I calculate the even and odd mode impedances? (for say two lines because I am not sure if the are defined for the Nth case). Can you please provide me with the formulas or with a reference? I am especially interested for the C, L R and G matrices calculation

Thanks in advance,
John