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Visualization and Data Export

Visualize RF data using Smith charts, polar, and Cartesian plots; save Touchstone files

You can use RF Toolbox™ functions to visualize component or network behavior:

  • Smith® Chart

  • Rectangular plots

  • Polar plots

The RF domain uses many types of data files, including industry-standard Touchstone files (.s2p) and AMP files, a MathWorks® nonlinear file format. You can write data into these files using several different RF Toolbox functions.

You can also export a network to Verilog-A format for use as a test environment in an analog circuit simulator. See Export Verilog-A Model.


RF Toolbox does not support Touchstone 2.0 files.


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rfplotPlot S-parameter data
setrfplotSet axis type for rfplot in RF Toolbox
smithplotPlot measurement data on Smith chart
circleDraw circles on Smith Chart
smithPlot circuit object parameters on Smith chart
polarPlot specified object parameters on polar coordinates
loglogPlot specified circuit object parameters using log-log scale
plotPlot circuit object parameters on X-Y plane
plotyyPlot parameters of RF circuit or RF data on X-Y plane with two Y-axes
semilogxPlot RF circuit object parameters using log scale for x-axis
semilogyPlot RF circuit object parameters using log scale for y-axis
reportSummarize IF planning results in command window
OpenIFFind open intermediate frequencies (IFs) in multiband transmitter or receiver architecture
rfchainCreate rfchain object
rfwriteWrite RF network data to Touchstone® file
writevaGenerate Verilog-A description of rational object
writeWrite RF data from circuit or data object to file