James Broomall, Signal-Integrity Engineer, W.L. Gore and Associates
Tamera Yost, Team Leader, Signal Integrity, W.L. Gore and Associates
Glen Walther, Technical Leader, PWB Research and Development Laboratory, W.L. Gore and Associates
Gregg Wildes, Smiths Aerospace

This paper is a follow-up to a study published at DesignCon 2004 which addressed the benefits of hybrid (mixed dielectric) stripline constructions by comparing the near-end crosstalk and insertion loss performance of hybrid stripline constructions to industry standard, homogeneous PCB stackups. The present study extends the analysis by comparing dispersion, far and near-end crosstalk, routing benefits and insertion loss performance of hybrid stripline constructions to industry standard, homogeneous PCB stackups. Data is obtained by direct measurement of test PCB traces and from simulated results. Finished PCB cost-performance considerations are also presented for the constructions evaluated in this study.