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Article

Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines

Department of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, 90-924 Łódź, Poland
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Academic Editor: Maria Cristina Piccirilli
Electronics 2021, 10(5), 550; https://doi.org/10.3390/electronics10050550
Received: 25 January 2021 / Revised: 18 February 2021 / Accepted: 21 February 2021 / Published: 26 February 2021
Parametric fault diagnosis of analog very high-frequency circuits consisting of a distributed parameter transmission line (DPTL) terminated at both ends by lumped one-ports is considered in this paper. The one-ports may include linear passive and active components. The DPTL is a uniform two-conductor line immersed in a homogenous medium, specified by the per-unit-length (p-u-l) parameters. The proposed method encompasses all aspects of parametric fault diagnosis: detection of the faulty area, location of the fault inside this area, and estimation of its value. It is assumed that only one fault can occur in the circuit. The diagnostic method is based on a measurement test arranged in the AC state. Different approaches are proposed depending on whether the faulty is DPTL or one of the one-ports. An iterative method is modified to solve various systems of nonlinear equations that arise in the course of the diagnostic process. The diagnostic method can be extended to a broader class of circuits containing several transmission lines. Three numerical examples reveal that the proposed diagnostic method is fast and gives quite accurate findings. View Full-Text
Keywords: analog electronic circuits; distribution and lumped parameters; fault diagnosis; parametric faults; transmission line analog electronic circuits; distribution and lumped parameters; fault diagnosis; parametric faults; transmission line
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MDPI and ACS Style

Tadeusiewicz, M.; Hałgas, S. Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines. Electronics 2021, 10, 550. https://doi.org/10.3390/electronics10050550

AMA Style

Tadeusiewicz M, Hałgas S. Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines. Electronics. 2021; 10(5):550. https://doi.org/10.3390/electronics10050550

Chicago/Turabian Style

Tadeusiewicz, Michał, and Stanisław Hałgas. 2021. "Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines" Electronics 10, no. 5: 550. https://doi.org/10.3390/electronics10050550

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