image thumbnail

VNA Impedance Measurement

version 1.2.3 (1.31 MB) by Dick Benson
This application communicates with both the HP 3577a and HP 8753 Vector Network Analyzers using HPIB and maps S11 to Z and more.


Updated 8 Mar 2020

View License

The measurement of impedance is a fundamental requirement in electrical engineering. Over the last century, countless techniques have been developed to accomplish this and all have their pros, cons, and sweet spots.

The Vector Network Analyzer is inherently capable of measuring impedance (Z) since it can measure the reflection coefficient (Gamma), and impedance can then be computed from the reflection coefficient. One shortcoming of using a VNA (at least the ones I have!) is the format of the results is somewhat limited. In the world of impedance, there are almost as many formats for displaying Z as there are ways to measure it. This application (vna_s11.m) is an extension of the formats typically available in a vector network analyzer.

Cite As

Dick Benson (2022). VNA Impedance Measurement (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with R2015a and later releases
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!