Assign boundary field value in a 3D cavity

    • apr37


      I would like to make a model of a 3D rectangular cavity, where 5 of the walls are held at zero potential (default behavior for the default PEC boundary, if I understand correctly), but the 6th wall is one that I can set to some field distribution of my choosing (then I let HFSS solve the the fields inside the volume of the cavity).

      I have tried using the 'linked field' excitation feature to do this, but I am having trouble making it work, as the only tutorials I seem to be able to find are all using this feature for the design of antennas in free space. I'll link to one of these tutorials anyway:

      Can anyone provide recommended instructions for doing the above described 3D cavity simulation? Or can anyone recommend other tools to consider using for the job?


    • Praneeth
      Ansys Employee


      Thank you for reaching out to the Ansys Learning Forum. Your patience is much appreciated.

      Were you able to solve your issue?

      If not, please go through the following instructions:

      1. Add the 6th face of the cavity at the required place in the simulation from where you want to link the field.
      2. Run the simulation with save fields option selected.
      3. After the simulation is complete, copy and paste the face at the required place and assign linked field excitation.
      4. Simulate the model and plot the results.

      For setting up linked field, please go through "Link from Driven Modal or Terminal Antenna to SBR+ Design" section of the HFSS help pdf document and "Dish FEBI IE PO" example project to learn more details about the linked field.

      Alternatively, you can also go through these links -Ansys Electronics 2023 R1 - Assigning Excitations for HFSS or HFSS-Transient and Ansys Electronics 2023 R1 - Other HFSS Examples with Descriptions in the Help to acsess these topics.

      Best regards,
      Forum Rules & Guidelines - Innovation Space (ansys.com)

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