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[SOLVED] HFSS 3D Layout - Define PCB Differential Waveports

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boboKof

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Hi everyone,

I'm new with HFSS 3D Layout. It is a bit different than the HFSS 3D CAD.
I'm trying to define 2 waveport over 2 differential nets. Both is on TOP layer and the reference ground is at Layer 4.
The main problem is that I get an Error trying to use Layer 4 Ground as negative for both ports.
Untitled.png


Thanks for your help!
 

Hi everyone,

I'm new with HFSS 3D Layout. It is a bit different than the HFSS 3D CAD.
I'm trying to define 2 waveport over 2 differential nets. Both is on TOP layer and the reference ground is at Layer 4.
The main problem is that I get an Error trying to use Layer 4 Ground as negative for both ports.
View attachment 144016

Thanks for your help!

What is the error? Also, layer 4 is a poor return current path, as your return current will be constrained to L3 and L1.
 
I though the return pass is in layer 4, but it actually in layer 3.

Thanks for noticing and for your help.
 

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