3 Replies Latest reply on Jun 12, 2012 10:50 AM by david.royle

    non-causal result from 3D EM via solver


      Has anyone been able to get causal .s4p result using the 3D EM solver up to 25GHz?. I have differential via, modeling up to 25GHz and it is non-causal. I have tried increasing number of points up to 20,000 (which appears to be maximum allowed). I have also tried limiting range to 22GHZ - 24GHz (where the non-causal behavior is located) with still 20K points and it is non-causal.