A WH GSMT-BASED FULL-WAVE ANALYSIS FOR PLANAR TRANSMISSION-LINES EMBEDDED IN MULTILAYERED DIELECTRIC SUBSTRATES/

A new full-wave analysis method, referred to as the WH/GSMT, is develo ped to solve multilayered planar transmission line problems, First, th e scattering of an obliquely incident parallel plate mode (PPM) by a P EC half plane embedded in a multilayered isotropic dielectric substrat e within a PEC parallel plate region is analyzed via the Wiener-Hopf ( WR) technique, The solution is then incorporated into the generalized scattering matrix technique (GSMT) to find the (complex) propagation c onstant and characteristic impedance of the planar transmission lines. The lateral power leakage is taken into account rigorously in the WH/ GSMT. Numerical results including the microstrip line, conductor-backe d slotline, coupled microstrip lines, and antipodal finlines are prese nted along with a discussion of the advantages/disadvantages of this m ethod.