HFSS15: Creating Radiation Patterns

A radiation pattern is a 2D polar plot displaying the intensity of near- or far-field radiation patterns. It is divided by the spherical coordinates R and theta, where R is the radius, or distance from the origin, and theta is the angle from the x-axis. Following is the general procedure for drawing a radiation pattern of results:

1. Click HFSS>Results>Create <type> Report, or right click on the Results icon in the Project tree and click Create <type> Report.

2. In the display type menu, click Radiation Pattern.

The Report dialog box appears, and a Radiation Pattern Plots icon appears under Results in the Project tree.

3. In the Context section make selections from the following field or fields, depending on the design and solution type.

a. Solution field with a drop down selection list. This lists the available solutions, whether sweeps or adaptive passes.

4. In the Trace tab Mag Component area, specify the information to plot along the R-axis, or the axis measuring magnitude:

a. On the Category drop down list, click the type of information to plot.

b. On the Quantity list, click the values to plot. Use CTRL-click to make multiple selections.

c. In the Function list, click the mathematical function to apply to the quantity for the plot.

d. The Value field displays the currently specified Quantity and Function. You can edit this field directly.

e. Range Function button -- opens the Set Range Function dialog. This applies currently specified Quantity and Function.

5. In the Trace tab Ang (Primary sweep) line, specify the sweep variable from the drop down list, and specify all values or select values.

6. Click New Report.

This creates a new report in Project tree, displays the report with the defined trace, and enables the Add Trace button on the Report dialog.

The function of the selected quantity or quantities will be plotted against the values you specified on a 2D polar plot. The plot is listed under Results in the project tree and the traces are listed under the plot. When you select the traces or plots, their properties are displayed in the Properties window. These properties can be edited directly to modify the plot.

7. Optionally, add another trace to the plot by following the procedure above, using Add Trace rather than New Report.

You can also modify the display type of an existing plot from the Properties dialog for that plot. Select the Report icon in the Project tree to display the Properties dialog. Selecting the Display Type field displays a menu with selections available for that plot.

Once you make a selection, the plot display updates for the current selection.