Transmission Line Impedance Characterization Using an Uncalibrated Vector Network Analyzer

For determining the line characteristic impedance {Z}_{1} of uniform transmission lines, it is typically necessary to use a calibrated vector network analyzer (VNA), whose calibration reference impedance {Z}_{2} is known. Using the eight-error term model for modeling a VNA and based on the fact...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2020-05, Vol.30 (5), p.528-530
Main Authors: Reynoso-Hernandez, J. Apolinar, Pulido-Gaytan, M. A., Cuesta, R., Loo-Yau, J. R., Maya-Sanchez, M. C.
Format: Article
Language:English
Subjects:
ABCD parameters
Calibration
calibration techniques
characteristic impedance
Eigenvalues and eigenfunctions
Impedance
Impedance measurement
Network analysers
Power transmission lines
Transmission line measurements
Transmission lines
uniform transmission line
vector network analyzer (VNA)
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Summary:For determining the line characteristic impedance {Z}_{1} of uniform transmission lines, it is typically necessary to use a calibrated vector network analyzer (VNA), whose calibration reference impedance {Z}_{2} is known. Using the eight-error term model for modeling a VNA and based on the fact that the values of the error terms are unique and independent of the calibration structures used to determine them, a new method for determining the line characteristic impedance of uniform transmission lines is presented. The main feature of the new method is that it only uses S -parameter measurements of a thru-line and a thru-load combination measured with an uncalibrated VNA.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2020.2984377