Full-Wave Analysis of Multilayer Coplanar Lines

A full-wave analysis of a coplanar waveguiding structure with multiple dielectric layers is presented. In this study, the results of the hybrid approach that combines the finite-element method and the conformal-mapping technique are compared with those of the spectral-domain approach. Numerical results for effective dielectric constants, characteristic impedances, current distributions, and field distributions for various multilayer coplanar line structures are presented and discussed. Comparisons are also made of the computed results with the available quasistatic ones.