HYBRID QUASI-STATIC ANALYSIS OF MULTILAYER MICROSTRIP LINES

A new quasistatic analysis of microstrip line structures with multidie lectric layers is presented, using a hybrid approach that combined the Galerkin finite-element method and the conformal-mapping technique. W heeler's mapping function is adopted, which overcomes both the problem of infinite field extension and the field singularity difficulty arou nd the conductor edges. Numerical results for effective dielectric con stants, characteristic impedances, charge distributions, and field dis tributions for various multilayer microstrip line structures are prese nted and discussed. Comparisons are also made of the computed results with the available quasistatic ones, and good agreements are obtained.