Radiation Pattern (Export)
Use the Radiation Pattern () node to export data from a radiation pattern plot to a text file. To add a node for exporting radiation pattern data, right-click the Export node and select Radiation Pattern. In the Settings window for Radiation Pattern, follow these steps to export radiation pattern data:
Data
Select a Dataset. The Dataset list contains the solution datasets previously defined. Select None to not export any radiation plot data.
When you have selected a solution set, choose parameters for the frequency (freq) and azimuthal angle (phi):
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From the Parameter solution (freq) list, choose All (the default), First, Last, From list, or Manual.
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From the Parameter solution (phi) list, choose All (the default), First, Last, From list, or Manual.
Expressions
Go to Common Results Node Settings for information about the Expressions section.To be consistent with the radiation pattern plot, only the real parts of the expressions are evaluated. If the expression is complex-valued, you must make it explicit what exactly should be evaluated using the abs, arg, real, and imag functions.
Evaluation
In this section you specify the samples on the sphere at which you want the evaluation to take place.
Under Angles, enter the Number of elevation angles. The default is 10. Enter the Number of azimuth angles. The default is 20.
Select a Restriction: None (the default) or Manual. If Manual is selected, enter values (SI unit: deg) for:
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θ start (the default is 0 degrees)
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θ range (the default is 180 degrees)
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 φ start (the default is 0 degrees)
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 φ range (the default is 360 degrees)
You can also specify the following settings for a radius-dependent exterior-field expression. Under Sphere from the list, select Unit sphere (the default) or Manual. If Manual is selected, enter values for the x-coordinate, y-coordinate, and z-coordinate at the center of the sphere in 3D (SI unit: m) or the z-coordinate for an axisymmetric geometry. The default is 0. Enter a Radius (SI unit: m). The default is 1 m.
For 2D axisymmetric radiation pattern plots, you can evaluate the azimuthal (φ) angle once for each angle when you specify a name of the variable for the φ angle in the Azimuthal angle variable field and use it in the expression for the radiation pattern. Doing so slows down the evaluation, so if the Azimuthal angle variable field is empty, an evaluate-once-and-revolve approach is used instead.
Output
Enter a Filename including a path to save it to your computer, or click Browse and navigate to where you want to Save the output. Click the downward arrow for the Location menu () to choose Show in Auxiliary Data, Copy Location (), and (if you have copied a file location) Paste Location ().
Select the Always ask for filename checkbox (only available if you are not saving to a database) if you want the program to always display a dialog for specifying where to store the plot data.
Advanced
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The Include header and Full precision checkboxes are selected by default. Click to clear the checkbox if you do not want to include a header, or to limit the precision in the output to six significant figures (and which provides an output that contains all significant figures for data stored as double-precision numbers). If you save the plot data as a VTK file, the Include header checkbox is not available. For export to STL, PLY, and 3FM files, none of these checkboxes are available.
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By default, the Include NaN data points checkbox is also selected to include such points in the data export.
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From the If the file exists list, select Overwrite (the default) to replace the data in the file with the data you export, or choose Append to append the data to the end of the file. Appending data can be useful when exporting data for a parametric sweep, for example. If you save the plot data using any other file format than text or STL files, the If the file exists list is not available.
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Select a column separator from the Separator list: Column (the default), Space, Tab, Comma, Semicolon, Colon, or Vertical bar (pipe).