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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2024-27-6-68-79</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-954</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МИКРО- И НАНОЭЛЕКТРОНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICRO- AND NANOELECTRONICS</subject></subj-group></article-categories><title-group><article-title>Особенности радиопоглощения и экранирования электромагнитного излучения тканями, модифицированными полипирролом и магнетитом, в диапазоне частот от 3.9 до 8 ГГц</article-title><trans-title-group xml:lang="en"><trans-title>Radio Absorption and Shielding of Electromagnetic Radiation by Polypyrroleand Magnetite-Based Textiles in the 3.9…8 GHz Frequency Range</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-2219-2375</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щербаков</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Scherbakov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щербаков Александр Евгеньевич – магистр по специальности электроника и наноэлектроника (2021); аспирант кафедры микро- и наноэлектроники; инженер-конструктор</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022</p></bio><bio xml:lang="en"><p>Alexandr E. Shcherbakov – Master's degree in electronics and nanoelectronics (2021); Postgraduate student of the Department of Micro- and Nanoelectronics; Design engineer</p><p> 5 F, Professor Popov St., St Petersburg 197022</p></bio><email xlink:type="simple">a.e.shcherbakov@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ОАО "Завод Магнетон"; Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В. И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC "Zavod Magneton"; Saint Petersburg Electrotechnical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>12</month><year>2024</year></pub-date><volume>27</volume><issue>6</issue><fpage>68</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Щербаков А.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Щербаков А.Е.</copyright-holder><copyright-holder xml:lang="en">Scherbakov A.E.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://re.eltech.ru/jour/article/view/954">https://re.eltech.ru/jour/article/view/954</self-uri><abstract><sec><title>Введение</title><p>Введение. В настоящее время композиционные материалы на основе электропроводящих полимеров находят широкое применение в различных областях. К сожалению, собственно электропроводящие полимеры имеют достаточно низкую механическую прочность, поэтому их применяют в виде композиционных материалов в сочетании с другими компонентами, обеспечивающими улучшенные базовые свойства, например механические. Отдельной ветвью развития подобных материалов стоит выделить композиционные материалы на основе текстиля, применяющиеся для экранирования электромагнитных волн. Ввиду низкой удельной плотности и, как следствие, небольшой массы, а также высокой эффективности поглощения данные материалы находят свое применение в сферах защиты человека от электромагнитного излучения.</p></sec><sec><title>Цель работы</title><p>Цель работы. Количественная оценка и анализ радиопоглощающих свойств двух- и трехкомпонентных текстильных композитов, присущих материалам вследствие наличия у них электропроводящих и магнитных характеристик.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для измерения S-параметров использовался векторный анализатор цепей Keysight N5232A. Измерения проводились отдельно в двух диапазонах частот: 3.9…5.65 и 5.65…8 ГГц. Для выбранных диапазонов частот использовались волноводы с сечением 48 × 24 и 35 × 15 мм соответственно. В качестве экспериментальных образцов выступали композиционные материалы на основе нетканого текстиля, состоящего из вискозы и полиэфирного волокна в соотношении 60 и 40 % по массе соответственно.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе эксперимента определены параметры S11, характеризующие отражение волны от поверхности образца (Sr) (reflection), и параметры S12, характеризующие проницаемость образца (St ) (transmittance). Получены данные для однослойных и многослойных образцов. Рассчитаны параметры диэлектрической и магнитной проницаемостей полученных материалов.</p></sec><sec><title>Заключение</title><p>Заключение. Исследуемые материалы показали высокую степень как экранирования, так и поглощения электромагнитного излучения. Для образцов, содержащих магнетит, превалирует экранирующий характер электромагнитного излучения, для образцов на основе полипиррола основной характер взаимодействия поглощающий. Уровень общего поглощения образцов на основе полипиррола толщиной 6 мм составил 90 %. Полученные электрофизические параметры в дальнейшем возможно использовать при проектировании и моделировании радиопоглощающих изделий на основе исследуемого материала.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Composite materials based on electrically conductive polymers find application in various fields. However, the rather low mechanical strength of electrically conductive polymers require addition of other components to enhance their, e.g., mechanical properties. Another direction consists in the development of textile-based composite materials for shielding electromagnetic waves. Due to the low specific density and, respectively, low weight, as well as high absorption efficiency, such materials find application in the fields of human protection from electromagnetic radiation.</p></sec><sec><title>Aim</title><p>Aim. Quantitative assessment and analysis of the radio-absorbing properties of two- and three-component textile composites, which emerge due to their electrically conductive and magnetic characteristics.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. S parameters were measured using a Keysight N5232A vector circuit analyzer. Measurements carried out separately in two frequency ranges: 3.9…5.65 GHz and 5.65…8 GHz. Waveguides of a given cross section were used for the selected frequency ranges (3.9…5.65 GHz – 48 × 24 mm; 5.65…8 GHz – 35 × 15 mm). The experimental samples were composite materials based on non-woven textiles consisting of viscose and polyester fiber in a ratio of 60 and 40 wt %, respectively.</p></sec><sec><title>Results</title><p>Results. The S11 parameters characterizing wave reflection from the sample surface (Sr) (reflection) and the S12 parameters characterizing the sample permeability (St ) (transmittance) were determined. Data for single- and multilayered samples was obtained. The dielectric and magnetic permeability of the obtained materials was calculated.</p></sec><sec><title>Conclusion</title><p>Conclusion. The studied materials showed a high degree of both shielding and absorption of electromagnetic radiation. Magnetite-based samples demonstrated largely shielding properties against electromagnetic radiation; polypyrrole-based samples were characterized by absorbing properties. The total absorption level of 6-mm thick polypyrrole-based samples was 90 %. The obtained electrophysical parameters can be used when designing and modeling of radio-absorbing products based on the studied materials.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>полипиррол</kwd><kwd>электропроводящие полимеры</kwd><kwd>радиопоглощающие материалы</kwd><kwd>магнетит</kwd><kwd>электромагнитные волны</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polypyrrole</kwd><kwd>electrically conductive polymers</kwd><kwd>radio-absorbing materials</kwd><kwd>magnetite</kwd><kwd>electromagnetic waves</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">The Effect of Conductive Polyaniline on the Anti-Fouling and Electromagnetic Properties of Polydimethylsiloxane Coatings / Y. Guo, Y. Qi, C. Zhang, S. Zhang, Z. Zhang // Polymers. 2023. Vol. 15, iss. 13. 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