extract capacitance from y matrix

Hi,

I need to find mutual inductance and capacitance from a two near by transmission lines structures . i have used fdtd codes to simulate the structures. what is the procedure to be followed to extract the same from the fdtd field equation.
please somone help me to extract the same.

With Regards,
Ramani.

I think you need to find the equivalent Y matrix and extract the required information from it. I did this in order to find the equivalent circuit of a noth in the transmission line. I think the same procedure should be applicable here. Also you may search for network parameter extraction method to find them out.