CAD models of losses for symmetric elliptical and circular cylindrical coplanar strip lines

Abstract

Abstract This article addresses a CAD-oriented closed-form expressions for dispersive and conductor thickness-based line parameters for symmetrical coplanar strip lines (CPS) on a finite-thickness dielectric substrate. The conductor and dielectric losses are also computed. The models are extended to non-planar CPS – elliptical coplanar strip line (ECPS) and cylindrical coplanar strip lines (CCPS). Finally, accurate circuit model for these structures is also presented. The results between 1 and 60 GHz are compared against the results of HFSS and Sonnet and also against the experimental results. The average deviation of the model against the experimental result is 2.06%. Keywords: CAD modelscircular cylindrical CPSelliptical cylindrical CPSlossstopping distancesymmetrical CPS Acknowledgements This study has been supported by CSIR, New Delhi, India and also by the UGC. The authors thank the reviewers for their critical comments and suggestions for their additional reference.