Frequency dependent material properties
- In material properties, you can set frequency dependent material properties as highlighted.
- There are multiple options for frequency dependent material setup
![](https://support.ozeninc.com/hubfs/image-png-Aug-12-2022-11-14-23-38-PM.png)
![](https://support.ozeninc.com/hubfs/image-png-Aug-12-2022-11-14-30-94-PM.png)
Option 1: Piecewise linear input
- Enter the values in the pop-up window for the following parameters
- Frequency Range
- Relative Permitivity
- Relative Permeability
- Dielectric loss tangent
- Magnetic loss tangent
- Click OK after finish
![](https://support.ozeninc.com/hs-fs/hubfs/image-png-Aug-12-2022-11-15-29-39-PM.png?width=501&name=image-png-Aug-12-2022-11-15-29-39-PM.png)
- Then, the pwl function will be automatically entered in the material properties
![](https://support.ozeninc.com/hs-fs/hubfs/image-png-Aug-12-2022-11-15-50-16-PM.png?width=608&name=image-png-Aug-12-2022-11-15-50-16-PM.png)
Option 2: Enter Frequency Dependent Data Points
- Click Edit to enter the data points and give the dataset a name.
- Alternative method to create the project dataset is
- Go to Project à dataset and create a new dataset
- Click OK after done.
- Using ‘$’ prefix to indicate the data to be a project dataset
![](https://support.ozeninc.com/hs-fs/hubfs/image-png-Aug-12-2022-11-17-58-37-PM.png?width=298&name=image-png-Aug-12-2022-11-17-58-37-PM.png)
![](https://support.ozeninc.com/hs-fs/hubfs/image-png-Aug-12-2022-11-18-05-95-PM.png?width=383&name=image-png-Aug-12-2022-11-18-05-95-PM.png)
- The pwl function will be automatically created in the material properties.
- If you create a project dataset using the alternative method, you can type the pwl function in the following format
- Pwl($dataset, Freq)
![](https://support.ozeninc.com/hubfs/image-png-Aug-12-2022-11-18-51-63-PM.png)