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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 supports reading and writing Touchstone 1.1 files and reading Touchstone 2.0 files (since R2023b).


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rfplotPlot S-parameter data
setrfplotSet axis type for rfplot in RF Toolbox (Since R2019b)
smithplotPlot measurement data on a 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 xy-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