Advances in Radio Science
Advances in Radio Science
ARS
Articles | Volume 22
Articles | Volume 22
https://doi.org/10.5194/ars-22-47-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ars-22-47-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22
08 Nov 2024
 | 08 Nov 2024

Influence of LO cable movements on VNA measurements using Frequency Extensions

Frauke Kathinka Helene Gellersen, David Ulm, Florian Rausche, Andreas Tobias Schramm, and Karsten Kuhlmann

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Latest update: 22 Feb 2025
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Short summary
In this study, the impact of LO signal variations on VNA measurements is investigated. The effect of LO signal changes is studied through theoretical analysis and experiments. It is found that even minor LO signal phase changes after calibration significantly affect the measured phase angles of transmission coefficients. Error correction terms are derived and applied to correct errors in the experimental data. The results shows that corrected measurements remain unaffected by the effect.
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