Learning Forum

[Zorah]

Hi there. I'm fairly new to HFSS and whenever I try to simulate my switch I get the error, "Could not preserve critical nodes. Simulation completed with execution error on server". Could anyone shed some light on how to resolve this?

[peteroznewman]

I moved your discussions to Electromagnetics for better visibility.

[Sorceress Gia]

@Zorah - are you working with an imported geometry? Can you please upload a screenshot of your model?

[Zorah]

@Peter. Thank you for getting back to me. The geometry was not imported. I made it myself in an attempt to recreate another researcher's work on a switch. The design is in no way my own and all credit is due to Miss. Sadia Yonus. I have attached images of the switch I have attempted to recreate.

The boundary conditions: All faces selected and assigned radiation

Excitation: Waveport with integration line defined from signal to ground and number of modes 1.

Solution setup:

Do let me know if you need any more information regarding the project. 

Anticipating your response,

Zorah Ahmad.

[Sorceress Gia]

Can you upload a copy of this model? - After looking at your other model, you may have the same issues as with that one...