What the best methodology to model transimission line on double layer board which haven't contionious reference ground?

Discussion created by yu.yanfeng on Apr 23, 2013
Latest reply on May 14, 2013 by yu.yanfeng

For lowing PCB cost, consumer type PCB need to be  a two layer board where no continous ground on it. What is the best mothodology to model trqansimission line on double layuer board?

I attached a demo design here and think about how to precisely model transmission lines of DDR2 800 channel. Hyperlynx 9.0 Beta have a feature to support area coupling but it seems it's not valid on this this case.