A Tool for Measuring High Q Resonators

Version 1.0.2 (1.27 MB) by Dick Benson
This application communicates with both the HP 3577a and HP 8753 Vector Network Analyzers using HPIB. It implements Prof. Kajfez's method.
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Updated 8 Mar 2020

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Virtually since the inception of the "radio", Q (the "Quality" factor) has been an important metric for quantifying RF components.
The Vector Network Analyzer is an essential tool for today’s RF design work. Therefore, they are accessible by virtually all RF designers. By post-processing VNA measurements, the functionality of the Q meter can be duplicated, and extended to higher frequencies and improved accuracy as well.

This MATLAB Q Measurement Tool (QMT) to be described is based on the excellent paper by professor Darko Kajfez published in the late 1990’s: http://www.walkingitaly.com/radio/RADIOSITO/za_fatti/tutorial/q/old/rfqmeas2b.pdf

Cite As

Dick Benson (2024). A Tool for Measuring High Q Resonators (https://www.mathworks.com/matlabcentral/fileexchange/68908-a-tool-for-measuring-high-q-resonators), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with R2015a and later releases
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.0.2

Slight tweak to frequency readout.

1.0.1

Updated link to Darko Kajfez reference.

1.0.0