Modeling and Computation of Capacitance Matrix for Shielded Vertical Microstrip-Lines using FEM

This paper presents the design analysis of five vertical shielded microstrip lines. The vertical microstrip transition solves the problem of discontinuity between two microstrip lines in different layers of microwave circuit. The main objective of this paper is to compute the capacitance and other relevant parameters like potential distributions of five shielded vertical microstrip line by using finite element technique. the computational and simulation work is carried out with the help of FEM based COMSOL multiphysics software. it has been used in a wide variety of problems like modeling wave guide and transmission lines, cavities etc. To improve the design further, adaptive mesh technique is applied to obtain more accurate result.