A Technique for Computing Dispersion Characteristics of Shielded Microstrip Lines with the Application to the Junction Problems

The problem of computing the dispersion characteristics of shielded microstrip lines is studied using Galerkin's method employed in the Fourier transform domain. Numerical results are compared with other available data and experimental measurements. The dispersion characteristics computed in this paper are also shown to be useful for predicting the end effects of a finite section of microstrip line. Some advantages of the method include simplicity and rapid convergence.