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Ansoft Designer / Ansys Designer 在线帮助文档：

Generating Reports and Postprocessing >
   Creating Reports >
       Display Types >
           Smith Chart               


Smith Chart

A Smith chart is a 2D polar plot of S-parameters upon which a normalized impedance grid has been superimposed. Following is the general procedure for creating a Smith chart of results:

1. Left click Product > Results (or right-click Results in the Project tree) and point to a desired report type and then select Smith Chart from the submenu that appears. The New Report dialog appears.

2. In the Trace tab Polar Component area, specify the information to plot:

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. Note that invalid expressions are displayed in red.

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

3. 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 will be plotted against the values you specified on a polar plot. In addition, each circle on the plot is labeled with values of R, measuring normalized resistance, and each line is labeled with values of X, measuring normalized reactance. 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.

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

Related Topics

Reviewing 2D Polar Plots

Sweeping a Variable

Working with Traces



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