ADS Substrate definition problem for polyimide flex

[eieiguy]

My feeling is that I am overlooking something very simple. I've the defined the layers for a polyimide flex by modifying the TwoLayerFR4 template. I know that there is no longer a ground plane as I am routing an inductive coil antenna on both sides. Via Designer fails since there is no plane as a return path. My question is, what is the best way to specify a plane? Do I add a a second conductor to one side of the flex, and how would I specify it as a plane?

 

[BigBoss]

You should define a padstack first then you have to define a via definition.

After all, you can place your via on the layout.This via can also be used for gnd! connection or interlayer connection while it's placed.