Title :
Simple and accurate dispersion expression for the effective dielectric constant of coplanar waveguides
Author :
Gevorgian, S. ; Martinsson, T ; Deleniv, A. ; Kollberg, E. ; Vendik, I.
Author_Institution :
Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
4/1/1997 12:00:00 AM
Abstract :
A conformal mapping based analytic formula is proposed for computation of the frequency dependent effective dielectric constant, εeff, of coplanar waveguides (CPW). This formula is correct in a wide frequency band and for wide range of CPW parameters, and models both negative and positive slopes in the frequency dependence of εeff. The results are especially useful for modeling microwave/millimetrewave and ultrahigh speed digital interconnects
Keywords :
coplanar waveguides; dispersion (wave); permittivity; waveguide theory; CPW parameters; conformal mapping based analytic formula; coplanar waveguides; dispersion expression; frequency dependent effective dielectric constant; microwave interconnects; millimetre wave interconnects; ultrahigh speed digital interconnects;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19970843