Thick coplanar line quasi-TEM parameter calculations

Quasi-TEM line structures with untraditional conductor shapes have been recently analyzed in the technical literature, and quasi-TEM parameters have been computed by various numerical methods. In some cases, analytical conformal mappings have been utilized to provide comparison data. However, analytical computations were easily provided only for infinitely thin electrode geometries and assuming magnetic walls at the dielectric interfaces in inhomogeneous dielectric structure. Numerical conformal mapping procedures, exact in principle, are used in this article to provide data for thick electrode structures. When necessary, accurate mappings of dielectric interfaces are derived to handle inhomogeneous dielectric structures in transformed geometries. Results obtained from different procedures are compared. (C) 1997 John Wiley & Sons, Inc