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Open AccessArticle

From Symmetry to Asymmetry: The Use of Additional Pulses to Improve Protection against Ultrashort Pulses Based on Modal Filtration

Tomsk State University of Control Systems and Radioelectronics, 634050 Tomsk, Russia
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Symmetry 2020, 12(7), 1117; https://doi.org/10.3390/sym12071117
Received: 30 May 2020 / Revised: 2 July 2020 / Accepted: 3 July 2020 / Published: 5 July 2020
(This article belongs to the Special Issue Information Technologies and Electronics)
For the first time, the paper considers in a unified work the possibility of the appearance of additional pulses in various structures based on modal filtration technology, which is used to improve protection against ultrashort pulses (USP). We analyzed meander lines (ML) with broad-side coupling, structures with modal reservation (MR), reflection symmetric MLs, and modal filters (MF) with a passive conductor in the reference plane cutout and obtained the following results. It was found that the main reason for the additional pulses to appear in these structures is the introduction of asymmetry (of the cross-section, boundary conditions, and excitation). It is theoretically and experimentally established that additional pulses are a new resource for increasing the efficiency of protective devices with modal decomposition, but the highest effectiveness could be achieved through careful optimization. View Full-Text
Keywords: electromagnetic compatibility; intentional electromagnetic interference; ultrashort pulse; protection devices; modal filter; meander line; reflection symmetry; additional pulses; time response electromagnetic compatibility; intentional electromagnetic interference; ultrashort pulse; protection devices; modal filter; meander line; reflection symmetry; additional pulses; time response
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Belousov, A.O.; Chernikova, E.B.; Samoylichenko, M.A.; Medvedev, A.V.; Nosov, A.V.; Gazizov, T.R.; Zabolotsky, A.M. From Symmetry to Asymmetry: The Use of Additional Pulses to Improve Protection against Ultrashort Pulses Based on Modal Filtration. Symmetry 2020, 12, 1117.

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