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Error seen during EM simulation

Question asked by siri on May 8, 2018

hi,

I am trying to generate s parameter file for a design. I have a clock tree routing with shields on both sides (top and bottom of a horizontal metal layer).

while running EM simulation in ADS I see the following error. 

please help me figure this out.

ERROR message seen:

 

S-parameter simulation
--- ERROR ---------------------------------------------------------------------

Side walls for a box or waveguide can only be used on a substrate with
top and bottom covers.

 

 

rough sketch of the layout routing:

thanks,

Siri 

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