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August 9, 2024 at 12:29 am
Stefano R
SubscriberI have 2 two ground planes at different heights, one above the substrate and another below. In real life, these would be wire-bonded to each other. Is there a simple way in HFSS to "connect" the two ground planes so they are at the same potential? Thanks
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August 12, 2024 at 7:23 pm
CB
Ansys EmployeeHi Stefano,
The best way to "short" the top and bottom ground planes, above and below your substrate is to assign the sides of your substrate with a PEC boundary condition , essentially providing a wrap around ground in simulation.
Regards,
Charlotte
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August 13, 2024 at 1:08 am
Stefano R
Subscriber -
August 13, 2024 at 1:51 am
CB
Ansys EmployeeHi Stefano,
An internal surface with a PEC or finite conductivity boundary shorting the two ground planes will work as shown in red in your image. The simulation and the actual device has to have the same electrical grounding scheme.
Regards,
Charlotte
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