Characteristic Impedance Calculation of Two-Wire Line with Different Radii in Vicinity of Dielectric Material

This paper presents a numerical technique for characteristic impedance and effective relative permittivity calculation of the system of two-wire line and a dielectric plate. The hybrid boundary element method is used to compute those parameters. The quasi-static TEM analysis is applied. Two different plate positions are analysed. Computed results are given for different parameters values. In order to verify the accuracy of the method, the analysed systems are also modelled using FEMM software. The calculated hybrid boundary element method results are well coincident with those obtained using the FEMM.