Finite element method for calculating capacitance and inductance of symmetrical coupled microstrip lines

In this paper, we apply the finite element method (FEM) to compute the capacitance and inductance matrices of symmetrical coupled microstrip lines. We mainly focus on modeling shielded symmetrical coupled microstrip lines and open symmetrical coupled microstrip lines, respectively. Also, we illustrate the potential distribution of the transmission lines for the models and their solution time. We compare some of our results with those obtained by other methods and found them to be in good agreement.