I am using hyperlynx v9.2 for 3D EM simulation, i have exported 3D area of differential via from board sim and assigned the ports, while simulating in MGRID it asks for meshing frequency i gave it as 6GHz and then simulated upto 6GHz. In simulation window it asked for number of points i gave it as 100. It simulated within 2 minutes which is very less time as compared to other softwares. When i imported s parameters in touchstone viewer return loss(S11) and insertion loss (S21) graphs are not proper.I think it is not simulating all points.

Can you please help me where i am lagging.

hi, regarding the result of course I can't say a lot without seeing it. probably somewhere inside of the geometry a connection is not as it should be. But you are right, the solver doesn't solve all frequency points. It is able to reduce the number of required frequencies based on the already available results. BTW: have you tried the new 3d solver environment introduced with HL9.3? It is in many areas easier to handle and delivers quicker results than HL3D. just let me know if you need here more assistance.