Influence of nonideal LRL or TRL calibration elements on VNA S-parameter measurements

For the 7-term LRL and TRL calibration of a four-sampler vector network analyser (VNA), expressions for the deviations of the measured S-parameters of two-port test objects from their actual values are presented as functions of the deviations of the S-parameters of the LRL/TRL calibration elements f...

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Bibliographic Details
Published in:Advances in radio science 2005-05, Vol.3 (14), p.51-58
Main Author: Stumper, U
Format: Article
Language:English
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Summary:For the 7-term LRL and TRL calibration of a four-sampler vector network analyser (VNA), expressions for the deviations of the measured S-parameters of two-port test objects from their actual values are presented as functions of the deviations of the S-parameters of the LRL/TRL calibration elements from their ideal values. The obtained sensitivity coefficients are suitable for establishing the Type-B uncertainty budget for S-parameter measurements. They show how the measurements are affected by imperfect calibration elements and nonideal connections.
ISSN:1684-9973
1684-9965
1684-9973
DOI:10.5194/ars-3-51-2005