Calculation of Capacitance of the Rectangular Coaxial Lines with Offset Inner Conductor by Strong FEM

In this paper, capacitance per unit length of rectangular coaxial transmission lines with offset nonzerothickness inner conductor, having an isotropic and anisotropic dielectric, using strong FEM formulation is calculated. The results were compared with the results obtained by the weak FEM and commercial software FEMM, which uses node-based first-order basis function. Based on that, appropriate conclusions are made.