Converting Variables and Parameter Defaults

Design (Local) variables can be converted to parameter defaults, and vice versa.

To convert a parameter default or local variable:

1. Access Design Properties one of three ways:
   • Click HFSS 3D Layout > Design Properties.
   • Right-click the design name in the Project Tree and select Design Properties.
   • From the Setup Optimization dialog box, click Edit Variables > Edit Design Variables.

   The Properties window appears.

2. Select either the Parameter Defaults tab or the Local Variables tab, depending on which item you want to convert.
3. Select the variable/parameter and click Convert to Parameter or Convert to Variable.

   The item will move to the list on the appropriate tab.

Some special cases to consider:

• If a local variable references another local variable, it cannot be converted to a parameter default. You will see a pop-up message if you attempt to convert. This is because local variables can reference parameter defaults, but parameter defaults cannot reference local variables.
• Parameter defaults can be overridden and can have different values in each subcircuit, while a Local Variable cannot. If a parameter default has been overridden and you convert it to a variable, it will lose all overrides. Attempting to do so will display a pop-up message asking if you really want to do the conversion and lose the override values.