Experimental Localization of Small Damages Using Modal Filters

Study of the amplitude-frequency characteristics of modal filters with a passive conductor in the form of a series of transmission line segments

Proceedings of Tomsk State University of Control Systems and Radioelectronics ◽

10.21293/1818-0442-2019-22-2-31-36 ◽

2019 ◽

Vol 22 (2) ◽

pp. 31-36

Author(s):

R. R. Khazhibekov ◽

Keyword(s):

Transmission Line ◽

Frequency Characteristics ◽

Line Segments ◽

Modal Filters

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

Symmetry ◽

10.3390/sym12071117 ◽

2020 ◽

Vol 12 (7) ◽

pp. 1117 ◽

Cited By ~ 1

Author(s):

Anton O. Belousov ◽

Evgeniya B. Chernikova ◽

Mariya A. Samoylichenko ◽

Artem V. Medvedev ◽

Alexander V. Nosov ◽

...

Keyword(s):

Boundary Conditions ◽

Cross Section ◽

Ultrashort Pulses ◽

Reference Plane ◽

Modal Decomposition ◽

Protective Devices ◽

Modal Filters ◽

First Time ◽

Filtration Technology ◽

Side Coupling

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.

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Simulation of the time response in multiconductor microstrip modal filters with separate accounting for losses in conductors and dielectrics

2018 Moscow Workshop on Electronic and Networking Technologies (MWENT) ◽

10.1109/mwent.2018.8337216 ◽

2018 ◽

Cited By ~ 3

Author(s):

Anton O. Belousov ◽

Talgat R. Gazizov

Keyword(s):

Time Response ◽

Modal Filters

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Optimum duct liners and modal filters

The Journal of the Acoustical Society of America ◽

10.1121/1.4969269 ◽

2016 ◽

Vol 140 (4) ◽

pp. 2992-2992

Author(s):

Mats Åbom ◽

Stefan Sack ◽

Raimo Kabral

Keyword(s):

Modal Filters

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Systematic Approach to Optimization for Protection Against Intentional Ultrashort Pulses Based on Multiconductor Modal Filters

Complexity ◽

10.1155/2018/5676504 ◽

2018 ◽

Vol 2018 ◽

pp. 1-15 ◽

Cited By ~ 8

Author(s):

Anton O. Belousov ◽

Talgat R. Gazizov

Keyword(s):

Objective Function ◽

Hybrid Model ◽

Heuristic Search ◽

Systematic Approach ◽

Ultrashort Pulses ◽

Analytical Form ◽

Electronic Equipment ◽

Optimization Criteria ◽

Modal Filters ◽

Radio Electronic

The problem of protecting radio electronic equipment from ultrashort pulses is of utmost importance nowadays since conductive interference poses the biggest danger to its proper functioning. The article considers the issue of protecting equipment by means of modal filters (MFs) and analyzes the structures of multiconductor microstrip MFs. We present the results of a complex study of the possibility to conduct the optimization (both separate and simultaneous) of a multiconductor MF by different criteria and the formulation of the basic (electrical) optimization criteria for MF. We have formulated the amplitude and time criteria for optimizing an MF (with any number of conductors) in an analytical form and obtained a general multicriteria objective function for optimizing an MF by different criteria. As a result, we have formed a hybrid model consisting of heuristic search and GA. The results demonstrated the topicality of further research in this field.

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