CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS
The aim of the work is to develop a method for high-frequency EMFs calculation in terms of the modified vector potential and to use it for choice of the parameters of the layered absorbing coatings that provide effective absorption of radio wave radiation. Methodology. A method for calculation of el...
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| Дата: | 2019 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine”
2019
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| Теми: | |
| Онлайн доступ: | http://eie.khpi.edu.ua/article/view/2074-272X.2019.5.05 |
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| Назва журналу: | Electrical Engineering & Electromechanics |
Репозитарії
Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-181883 |
|---|---|
| record_format |
ojs |
| institution |
Electrical Engineering & Electromechanics |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
электромагнитное поле неоднородные среды модифицированный векторный магнитный потенциал метод конечного интегрирования идеально согласованные поглощающие граничные слои 621.315 electromagnetic field inhomogeneous media modified vector magnetic potential finite integration method uniaxially perfectly matched layers 621.315 |
| spellingShingle |
электромагнитное поле неоднородные среды модифицированный векторный магнитный потенциал метод конечного интегрирования идеально согласованные поглощающие граничные слои 621.315 electromagnetic field inhomogeneous media modified vector magnetic potential finite integration method uniaxially perfectly matched layers 621.315 Rezinkina, M. M. CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| topic_facet |
электромагнитное поле неоднородные среды модифицированный векторный магнитный потенциал метод конечного интегрирования идеально согласованные поглощающие граничные слои 621.315 electromagnetic field inhomogeneous media modified vector magnetic potential finite integration method uniaxially perfectly matched layers 621.315 |
| format |
Article |
| author |
Rezinkina, M. M. |
| author_facet |
Rezinkina, M. M. |
| author_sort |
Rezinkina, M. M. |
| title |
CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| title_short |
CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| title_full |
CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| title_fullStr |
CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| title_full_unstemmed |
CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS |
| title_sort |
calculation of electromagnetic fields in inhomogeneous media for selection of protective coatings |
| title_alt |
РАСЧЕТ ЭЛЕКТРОМАГНИТНЫХ ПОЛЕЙ В НЕОДНОРОДНЫХ СРЕДАХ ДЛЯ ВЫБОРА ЗАЩИТНЫХ ПОКРЫТИЙ |
| description |
The aim of the work is to develop a method for high-frequency EMFs calculation in terms of the modified vector potential and to use it for choice of the parameters of the layered absorbing coatings that provide effective absorption of radio wave radiation. Methodology. A method for calculation of electromagnetic fields in inhomogeneous media is described. It is performed in terms of the modified magnetic potential at presented a plane electromagnetic wave as an incident and reflected one. To reduce the computational domain size, additional uniaxially perfectly matched layers ensuring fast and non-reflective attenuation of electromagnetic field (EMF) strengths are used at its boundaries. It is supposed that electrical parameters of such layers have not only resistive, but also magnetic losses. Results. Modification of the known methods for dividing the wave into the incident and reflected, as well as introducing uniaxially perfectly matched layers at the domain boundaries and formulation of the problem in terms of the modified vector potential, provide a possibility to solve the problem of the electromagnetic wave incidence onto heterogeneous media at reduced memory and counting time compared to the formulation tasks through the EMF strengths. Practical value. The described method was used to select parameters of radio-absorbing coatings, application of which on conductive bodies reduces the reflections from them of the incident electromagnetic waves. This provides a possibility to choose the electrical parameters of layered coatings with active losses, as well as magnetic losses, which provide a decrease of the reflected waves amplitude by an order of magnitude or more. Originality. For the first time, the problem of calculating the incidence of an electromagnetic wave on an inhomogeneous medium with active electrical and magnetic losses was formulated in terms of the modified vector potential. The parameters of a multilayer lossy coating, which ensures decrease of the reflected EMF wave strengths by an order of magnitude or more are determined. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” |
| publishDate |
2019 |
| url |
http://eie.khpi.edu.ua/article/view/2074-272X.2019.5.05 |
| work_keys_str_mv |
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| first_indexed |
2024-06-01T14:39:22Z |
| last_indexed |
2024-06-01T14:39:22Z |
| _version_ |
1800670033003675648 |
| spelling |
eiekhpieduua-article-1818832019-11-04T14:26:06Z CALCULATION OF ELECTROMAGNETIC FIELDS IN INHOMOGENEOUS MEDIA FOR SELECTION OF PROTECTIVE COATINGS РАСЧЕТ ЭЛЕКТРОМАГНИТНЫХ ПОЛЕЙ В НЕОДНОРОДНЫХ СРЕДАХ ДЛЯ ВЫБОРА ЗАЩИТНЫХ ПОКРЫТИЙ Rezinkina, M. M. электромагнитное поле неоднородные среды модифицированный векторный магнитный потенциал метод конечного интегрирования идеально согласованные поглощающие граничные слои 621.315 electromagnetic field inhomogeneous media modified vector magnetic potential finite integration method uniaxially perfectly matched layers 621.315 The aim of the work is to develop a method for high-frequency EMFs calculation in terms of the modified vector potential and to use it for choice of the parameters of the layered absorbing coatings that provide effective absorption of radio wave radiation. Methodology. A method for calculation of electromagnetic fields in inhomogeneous media is described. It is performed in terms of the modified magnetic potential at presented a plane electromagnetic wave as an incident and reflected one. To reduce the computational domain size, additional uniaxially perfectly matched layers ensuring fast and non-reflective attenuation of electromagnetic field (EMF) strengths are used at its boundaries. It is supposed that electrical parameters of such layers have not only resistive, but also magnetic losses. Results. Modification of the known methods for dividing the wave into the incident and reflected, as well as introducing uniaxially perfectly matched layers at the domain boundaries and formulation of the problem in terms of the modified vector potential, provide a possibility to solve the problem of the electromagnetic wave incidence onto heterogeneous media at reduced memory and counting time compared to the formulation tasks through the EMF strengths. Practical value. The described method was used to select parameters of radio-absorbing coatings, application of which on conductive bodies reduces the reflections from them of the incident electromagnetic waves. This provides a possibility to choose the electrical parameters of layered coatings with active losses, as well as magnetic losses, which provide a decrease of the reflected waves amplitude by an order of magnitude or more. Originality. For the first time, the problem of calculating the incidence of an electromagnetic wave on an inhomogeneous medium with active electrical and magnetic losses was formulated in terms of the modified vector potential. The parameters of a multilayer lossy coating, which ensures decrease of the reflected EMF wave strengths by an order of magnitude or more are determined. Описан метод расчета электромагнитных полей в неоднородных средах, выполненный в терминах модифицированного магнитного потенциала при разделении плоской электромагнитной волны на падающую и отраженную. Для уменьшения габаритов расчетной области на ее границах введены дополнительные одноосно идеально поглощающие слои, обеспечивающие быстрое и безотражательное затухание напряженностей электромагнитных полей (ЭМП). Особенностью таких слоев является то, что их электрические параметры выбраны такими, чтобы обеспечить наличие в них не только резистивных, но и магнитных потерь. Математическое моделирование процессов при падении ЭМП на проводящую среду, перед которой помещены покрытия с подобными свойствами, показало возможность эффективного затухания в них ЭМП радиочастотного диапазона. В результате проведенных исследований выбраны параметры покрытий, обеспечивающих минимальное отражение падающих электромагнитных волн. National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2019-10-28 Article Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2019.5.05 10.20998/2074-272X.2019.5.05 Electrical Engineering & Electromechanics; No. 5 (2019); 31-34 Электротехника и Электромеханика; № 5 (2019); 31-34 Електротехніка і Електромеханіка; № 5 (2019); 31-34 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2019.5.05/181780 http://eie.khpi.edu.ua/article/view/2074-272X.2019.5.05/181781 Copyright (c) 2019 M. M. Rezinkina https://creativecommons.org/licenses/by-nc/4.0 |