Journal of Radio Electronics. eISSN 1684-1719. 2024. №10

Full text in Russian (pdf)

DOI: https://doi.org/10.30898/1684-1719.2024.10.4

EXTRACTION OF PER-UNIT-LENGTH PARAMETERS
OF TRANSMISSION LINES FROM MEASURED S-PARAMETERS

N.S. Pavlov, Y.S. Zhechev, A.M. Zabolotskiy

Tomsk State University of Control Systems and Radioelectronics,
634050, Russia, Tomsk, prospect Lenina, 40

The paper was received May 25, 2024

Abstract. A method for extracting the per-unit-length parameters of transmission lines from measured S-parameters is presented. The method shows similar results with other methods of calculation of per-unit-length parameters. The maximum deviation of the elements of the matrices of the per-unit-length parameters of single-wire transmission lines is 1,37%, while the minimum value is 0,075%. In the case of multiconductor symmetrical and asymmetrical transmission lines the maximum deviation does not exceed 3,64%. To confirm the results, the characteristics in the time domain are analyzed. It is shown that the method is stable as the complexity of structures increases in terms of the number of conductors and the presence of their asymmetry.

Key words: per-unit-length parameters, transmission lines, S-parameters, extraction.

Financing: The work was carried out within the framework of the project FEWM-2024-0005 of the Ministry of Education and Science of Russia.

Corresponding author: Pavlov Nikita Sergeevich nikitapavlov0804@mail.ru

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For citation:

Pavlov N.S., Zhechev Y.S., Zabolotskiy A.M. Extraction of per-unit-length parameters of transmission lines from measured S-parameters. // Journal of Radio Electronics. – 2024. – №. 10. https://doi.org/10.30898/1684-1719.2024.10.4 (In Russian)