Learning Forum

[Karim Rafiki]

Hello, 

Is it possible to perform port de-embedding in Ansys Circuit like in HFSS with a wave port or a lumped port ?

For example, I apply a 3 mm de-embedding on port 1 in HFSS, and I want to do the same thing but in Circuit

Thank you in advance for your responses

[Dan Dvorscak]

Not like that on arbitrarty s-parameters. In Circuit, if have the s-parameters of a fixture and a full device under test, you can utialize the "use recirpricol" options to de-embed the fixture from the DUT in a LNA simulation. But that is different than de-embbeding a fixed distince from a wave port. You can make that work, if it is a dynamically linked HFSS project and if you make the demebeeding distance a parameter. In that case, you would be able to change the de-embedded distance by changing that parameter in the Circuit component for the HFSS model. 

Best regards,

-Dan

[Karim Rafiki]

Thanks you for response Dan, I have an other question when I disable de-embedding in HFSS, the results in circuit do not change althought normally it is post-prcoessing

Best regards,

Karim

[Dan Dvorscak]

I'm not sure why that might be happening. I would expect the circuit results to change. Have you tried using the "refresh link" right mouse click option for the HFSS compoinent in the schematic? 

[Karim Rafiki]

Yes the results change, thanks you but I tried to put the de-embedding distance as a parameter but Ansys Circuit does not detect this parameter dynamically because it's post processing 

[David Prestaux]

Hello Rafik, you may also use HFSS port solver as a transmission line model and used it in cicuit. once done, you will be able to assign the length as a parameter.

1/ include a HFSS design as port based solution / transmssion line model:

 

2/ parameterize the transmssion line model: