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- Title
A simple evaluation procedure of the TAN calibration and the influence of non-ideal calibration elements on VNA S-parameter measurements.
- Authors
Stumper, U.
- Abstract
For the 7-term general TAN (Through-Attenuator-Network) self-calibration method of a four-sampler vector network analyser (VNA), and for all derived calibration methods like TLN, TRL, TRM, TAR, or TMN, it is shown that a very simple evaluation procedure of the seven error terms is possible, even if the Through connection is replaced by a reflectionless network with known transmission. Expressions for the deviations of the measured S-parameters of two-port test objects (d.u.t.s) from the true values, which are caused by deviations of the modeled S-parameters of nonideal calibration elements ("standards") from their true values, are also presented. Additionally, it is shown that a TAN calibration is also possible in case of unequal reflections of the Network.
- Subjects
RADIO attenuators; CALIBRATION; MEASUREMENT; ERRORS; RADIO technology equipment
- Publication
Advances in Radio Science, 2007, Vol 5, p5
- ISSN
1684-9965
- Publication type
Article
- DOI
10.5194/ars-5-5-2007