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Article

Breaking the Symmetry of Cable Structures as an Instrument for Improving Modal Decomposition to Protect Critical Equipment against UWB Pulses

Department of Television and Control, Tomsk State University of Control Systems and Radioelectronics, 634050 Tomsk, Russia
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Author to whom correspondence should be addressed.
Academic Editor: Kazuharu Bamba
Symmetry 2022, 14(6), 1228; https://doi.org/10.3390/sym14061228
Received: 15 May 2022 / Revised: 1 June 2022 / Accepted: 8 June 2022 / Published: 13 June 2022
(This article belongs to the Special Issue Symmetry/Asymmetry in Circuits and Electrodynamics)
This work presents a detailed, comprehensive study of a new structural design of protective devices with a circular cross-section (CS) (protective cables) for protecting equipment against ultra-wideband (UWB) pulses. Multiconductor structures with 2–5 conductors with and without a protective shield are considered. The disadvantages of using symmetric configurations of protective cables are shown. Their simulation, multivariate analysis, and optimization through heuristic search, as well as evolutionary strategies, were carried out. Optimization was carried out according to the amplitude (to minimize the maximum voltage level at the output of the structures) and time (to maximize the duration of the exciting signal) criteria. The optimization results allowed for increasing the duration and overall attenuation of the exciting UWB pulse. The article shows the possibility of improving the characteristics of such structures through their cascade connection, both among themselves and with strip protective structures. The results of parametric optimization of such structures are presented in the range of real (used in practice) geometric and electrophysical parameters in terms of amplitude and time criteria, as well as the matching criterion. The article also presents the developed prototypes of protective structures with a circular CS of three types: circular 3-conductor cable, flat 3-conductor cable, and circular 4-conductor cable. The experimental results describe how these prototypes were developed and created and confirm the feasibility of these protective structures to decompose the exciting pulse signal, which was previously shown only in simulation. Finally, it is shown that the use of asymmetry in the proposed cable structures can improve their protective characteristics. View Full-Text
Keywords: electromagnetic compatibility; intentional electromagnetic interference; UWB pulse; multiconductor modal filters; microstrip line; circular cross-section; parametric optimization; heuristic search; cascade connection; time response electromagnetic compatibility; intentional electromagnetic interference; UWB pulse; multiconductor modal filters; microstrip line; circular cross-section; parametric optimization; heuristic search; cascade connection; time response
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MDPI and ACS Style

Belousov, A.O.; Vlasova, N.O.; Gordeyeva, V.O.; Gazizov, T.R. Breaking the Symmetry of Cable Structures as an Instrument for Improving Modal Decomposition to Protect Critical Equipment against UWB Pulses. Symmetry 2022, 14, 1228. https://doi.org/10.3390/sym14061228

AMA Style

Belousov AO, Vlasova NO, Gordeyeva VO, Gazizov TR. Breaking the Symmetry of Cable Structures as an Instrument for Improving Modal Decomposition to Protect Critical Equipment against UWB Pulses. Symmetry. 2022; 14(6):1228. https://doi.org/10.3390/sym14061228

Chicago/Turabian Style

Belousov, Anton O., Natalya O. Vlasova, Viktoriya O. Gordeyeva, and Talgat R. Gazizov. 2022. "Breaking the Symmetry of Cable Structures as an Instrument for Improving Modal Decomposition to Protect Critical Equipment against UWB Pulses" Symmetry 14, no. 6: 1228. https://doi.org/10.3390/sym14061228

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