Learning Forum

[bkdavis3]

Does anyone have any insight on doing co-simulation between Ansys HFSS and Ansys Circuit when using plane wave excitations in HFSS. I'm trying to co-simulate the performance of a single reflectarray element, particularly the generation of IMD products due to the phase-control element (a varactor diode in this case). I have watched the Ansys material on co-simulation between HFSS and Circuit for performing impedance matching. The main portion of the co-simulation in that case involves Pushing Excitations from Ansys Circuit into HFSS to update the calculated fields based on the improved impedance match.

However, I've yet to find any resources on providing an excitation in Ansys Circuit based on the calculated fields in HFSS. What I would like to do is, calculate the voltage across a lumped port and push that value into Ansys Circuit as an excitation to calculate the circuit's response.

My current approach is to manually calculate the port's voltage in HFSS using the Fields Calculator and input that value into a Circuit Microwave Port element. I believe this process can be automated using scripting, but I wanted to post here to see if there was a more direct way to do this.

[Gia]

There is not a direct way to do this, but to help automate the process without scripting, you can setup a parametric sweep of the plane wave angle in HFSS [Optimetrics > Add Parametric...] and then run the parametric sweep.

 

Next, create a Report of your port voltage expression vs. plane wave angle. - Then export this report as a CSV file [Right-click on report title, then select 'Export'].

 

In Circuit, configure a parametric sweep of your input voltage using [Optimetrics > Add Parametric From File...] and specify the CSV file exported from HFSS.

 

Note - The format of the CSV data might need to be modified in a spreadsheet tool before using as an input to the parametric sweep. - The formatting is described in the HFSS help manual [Help > HFSS PDFs > HFSS Help]