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S-Parameter Utilities

version 1.11 (1.83 MB) by Dick Benson
A collection of utilities to complement the RF Toolbox.


Updated 18 May 2020

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This is a collection of RF centric utilities that complement and extend RF Toolbox functions. The list includes:
1) One Port (s1p) file viewer (Smith, SWR/Q, Real(Z)&Imag(Z), Mag(Z) and Phase(Z) )
2) Two Port (s2p) file viewer (S11,S22 Smith or Return Loss, S21 and S12 Mag and Phase)
3) One or Two Port viewer but Single Axes (expanded plotting area)
4) N Port (SnP) file viewer (Smith + Mag/Phase)
5) Enhanced Smith Chart
6) S Parameter file writer that incorporates User Notes and Measurement State
7) S Parameter file reader that extracts User Notes and Measurement State
8) "T Check" method for VNA Calibration Checking (s2p file input)

Cite As

Dick Benson (2020). S-Parameter Utilities (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (2)

Randal Direen

I looked through the zip and I'm not seeing a pdf. Am I missing a version? I have S_Parameters_Utilities_v1p1.

Jeff Anderson

A very useful set of utilities. And thanks for including a PDF for documentation.



Added the missing PDF! Ooooops. Sorry for the delay.


Misc small bugs fixed. Improved multiple file support. Color changes.


Spelling error.

MATLAB Release Compatibility
Created with R2015a
Compatible with R2015a to any release
Platform Compatibility
Windows macOS Linux