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How to define ground plane in Momentum substrate definition

Question asked by tho on Apr 2, 2019
Latest reply on Apr 3, 2019 by tho

Could someone please show me how to properly define the ground plane in the substrate definition of Momentum?  I am trying to do a simple simulation of a 28GHz 50-ohm microstrip/stripline in ADS and compare the S11 result with that from Momentum for different R4035B substrate thickness.  However, I am having difficulty getting the result of this simple simulation to match -- it seems that my ground plane in the substrate definition of Momentum is not done properly.  Thank you for your help.

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