A New Analytical Method to Calculate the Characteristic Impedance ZC

Abstract

Abstract. A new analytical method to calculate the characteristic impedance of transmission lines embedded in identical, symmetrical and reciprocal connectors is herein presented. To calculate the characteristic impedance of transmission lines, the proposed method uses S-parameter measurements performed on two uniform transmission lines having the same characteristic impedance and propagation constant but different lengths. The method was successfully applied to characterize microstrip lines printed on an FR4 substrate in the 0.45-4GHz frequency range.