[sergei94 0]

Hello , for the purpose of impedance compensation of step discontinues ,for the expression shown bellow i need the fringing capacitance.

but i only managed to find the odd mode and even mode fringing field capacitance plots of broadside coupler(which is the closest to offset coupler)

how can i get the total fringing field capacitance from having the even and odd capacitance?

 

Thanks