An estimation method for the n port S parameters with n-1 port measurements

An estimation method of the n-port S-parameters for reciprocal circuits is presented. In this method, several known loads are connected to one port in turn and reflection and transmission characteristics among the remaining ports are measured. Therefore, there is no need to connect a network analyze...

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Bibliographic Details
Published in2013 International Symposium on Electromagnetic Compatibility pp. 348 - 353
Main Authors Maeda, Noboru, Fukui, Shinji, Ichikawa, Kouji, Sakurai, Yukihiko, Sekine, Toshikazu, Takahashi, Yasuhiro
Format Conference Proceeding
LanguageEnglish
Published EMC Europe Foundation 01.09.2013
Subjects
automotive components
BCI test
Equations
Frequency estimation
immunity test
least-square method
Mathematical model
multiple port circuit
Ports (Computers)
S-parameter
Scattering parameters
Voltage measurement
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Summary:An estimation method of the n-port S-parameters for reciprocal circuits is presented. In this method, several known loads are connected to one port in turn and reflection and transmission characteristics among the remaining ports are measured. Therefore, there is no need to connect a network analyzer to the port that is connected to the known loads. S-parameters are obtained by solving a linear least-squares equation and a quadratic equation only. In addition, applying this method to estimate the S-parameters of an immunity test system, validness of this method is confirmed.
ISSN:2325-0356
DOI:10.1109/ECCTD.2013.6662246