Adding an HFSS Dynamic Coupling Component in Twin Builder

Follow this procedure to add an HFSS dynamic coupling component to a Twin Builder design.

  1. On the Twin Builder main menu, select Subcircuit > Add HFSS Dynamic Component. The HFSS Dynamic Coupling dialog box appears.
  2. Specify a Name for the component. See Names of Components and Variables for naming conventions.
  3. In the Source Project & Design panel, enter the project File. Click to find and select the HFSS (.aedt) file that you want to use.

    The selected project loads into its application.

  4. Based on the Source file and the Link Type (HFSS Link), Twin Builder communicates with HFSS, retrieves the applicable Design and Solution information, and populates the corresponding menus with the information.

    The Information tab updates to show the Number of Conservative Pins and various other Quantities present in the selected design.

  5. After you select the Source file, select the design you want to use in the coupled design from the Design drop-down list.
  6. Select the desired solution from the Solution drop-down list.
  7. Optionally, on the Options tab:
    1. Select Save project after use to have the linked project file saved by its application after co-simulation is completed.
    2. Select Unload project after use to have the linked project file closed by its application after co-simulation is completed.
    3. Select Create static link to create a static link and enable the Clear Static Cache button.
      • If Create static link is not selected, Twin Builder obtains sml/netlist information from HFSS every time a simulation analysis is run, even if no parameter has changed. This is the default behavior.
      • If Create static link is selected, Twin Builder obtains sml/netlist information from HFSS only if a parameter value has changed since the previous simulation run. Click Clear Static Cache to delete the sml/netlist information currently stored in the Twin Builder model. The next simulation run will then obtain fresh sml/netlist information from the other product application and store it in Twin Builder.
      • You also have the choice to set passivity, error tolerance, and maximum order. These options are similar to what appears in the Network Data.

    By default, pin names display. The option to Show Description is disabled.

  8. When finished, click OK to accept the values and close the dialog box.
  9. Place the component on the schematic sheet.
  10. After placing the component on a sheet, you can open its Properties dialog box to configure the component.

    The dynamic coupling component configuration is saved with the schematic sheet. Twin Builder must establish a link to the associated application each time a simulation runs.