Material Complex Conductivity - HFSS

The example shows how to make a material property frequency dependent using a dataset as the first parameter to a piecewise linear (pwl and pwl_periodic) functions. $ sign indicates the dataset is global.

Using Dataset Expressions 

1.Click HFSS> Design Datasets

2.Click Add and set the Name field and Coordinates as desired (1D in this case) and click OK.

3.Create datasets for real and imaginary part

4.Go to Tools>Edit Configured Libraries>Materials to open the Edit Libraries dialog box.

5.Click Add Material.

6.Type in the piecewise linear function and use the dataset $ds1 as shown in the figure next page

As you can see, the Bulk Conductivity can be entered as a complex value with real and imaginary parts. In HFSS, to designate the imaginary part, multiply it by 1i, as shown below

Using Variable Expressions

To create the project variables

1.Go to Project > Project Variables... to see a list of existing project variables.

2.Click Add on the project variable list for a dialog to enter names and values for each variable you need.

As you can see, the Bulk Conductivity can be entered as a complex value with real and imaginary parts. In HFSS, to designate the imaginary part, multiply it by 1i, as shown below