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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8358-2024-69-1-17-27</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-827</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>МАТЕРИАЛОВЕДЕНИЕ, МЕТАЛЛУРГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS SCIENCES AND ENGINEERING, METALLURGY</subject></subj-group></article-categories><title-group><article-title>Углесодержащие  поглотители  электромагнитного  излучения  СВЧ-диапазона  с  рельефной поверхностью</article-title><trans-title-group xml:lang="en"><trans-title>Charcoal-containing microwave electromagnetic radiation absorbers with relief surface</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9987-8109</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойправ</surname><given-names>О. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Boiprav</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бойправ Ольга Владимировна – кандидат технических наук, доцент, доцент кафедры защиты информации</p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Olga V. Boiprav – Cand. Sci. (Engineering), Associate Professor, Associate Professor of the Information Protection Department</p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">smu@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9834-6074</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоусова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Belousova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белоусова Елена Сергеевна – кандидат технических наук, доцент, доцент кафедры защиты информации</p><p> ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Elena S. Belousova – Cand. Sci. (Engineering), Associate Professor, Associate Professor of the Information Protection Department </p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">belousova@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7832-8597</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богуш</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogush</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Богуш Наталья Валерьевна – научный сотрудник научно-исследовательской лаборатории «Материалы, технологии и средства обеспечения безопасности» научно-исследовательской части</p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Natalia V. Bogush – Researcher of the Scientific Research Laboratory “Materials, Technologies and Means of Security Ensuring” of R&amp;D Department </p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">nbogush@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7977-8031</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саванович</surname><given-names>С. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Savanovich</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саванович Светлана Эдуардовна – ассистент кафедры защиты информации </p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Svetlana E. Savanovich – Assistant of the Information Protection Department </p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">svetasav@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Касперович</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kasperovich</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Касперович Марина Михайловна – научный сотрудник научно-производственно-образовательного инновационного центра СВЧ-технологий и их метрологического обеспечения научно-исследовательской части</p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Marina M. Kasperovich – Researcher of the Scientific-Production-Educational Innovation Center for Microwave Technologies and Their Metrological Support of R&amp;D Department</p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">kaspiarovich@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гусинский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gusinsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гусинский Александр Владимирович – доктор технических наук, доцент, заведующий кафедрой информационно-измерительных систем </p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Alexander V. Gusinsky – Dr. Sci. (Engineering), Associate Professor, Head of the Information and Measuring Systems Department </p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">a.gusinskij@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захаров</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Захаров Иван Андреевич – младший научный сотрудник научно-производственно-образовательного инновационного центра СВЧ-технологий и их метрологического обеспечения научно-исследовательской части</p><p>ул. П. Бровки, 6, 220013, Минск</p></bio><bio xml:lang="en"><p>Ivan A. Zakharov – Junior Researcher of the Scientific-Production-Educational Innovation Center for Microwave Technologies and Their Metrological Support” of R&amp;D Department </p><p>6, P. Brovka Str., 220013</p></bio><email xlink:type="simple">iv.andr.zakharov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2024</year></pub-date><volume>69</volume><issue>1</issue><fpage>17</fpage><lpage>27</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бойправ О.B., Белоусова Е.С., Богуш Н.В., Саванович С.Э., Касперович М.М., Гусинский А.В., Захаров И.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Бойправ О.B., Белоусова Е.С., Богуш Н.В., Саванович С.Э., Касперович М.М., Гусинский А.В., Захаров И.А.</copyright-holder><copyright-holder xml:lang="en">Boiprav O.V., Belousova E.S., Bogush N.V., Savanovich S.E., Kasperovich M.M., Gusinsky A.V., Zakharov I.A.</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://vestift.belnauka.by/jour/article/view/827">https://vestift.belnauka.by/jour/article/view/827</self-uri><abstract><p>Представлена новая технология изготовления поглотителей электромагнитного излучения (ЭМИ) СВЧ-диапазона, характеризующихся геометрически неоднородной поверхностью. Новизна представленной технологии заключается в использовании радиопрозрачных полимерных форм с полусферическими углублениями одинакового объема, которые являются компонентом для формирования поверхностного слоя поглотителей. Технология состоит в заполнении указанных форм находящейся в жидкой фазе смесью порошкообразного активированного древесного (березового) угля и связующего вещества и дальнейшем ее высушивании в формах. По сравнению с аналогами разработанная технология характеризуется невысокой сложностью воспроизведения. Бóльшая часть временных затрат, необходимых для реализации представленной технологии, связана с процессом высыхания смеси порошкообразного активированного березового угля и связующего вещества. Приведены установленные экспериментальным путем закономерности изменения значений коэффициентов отражения и поглощения электромагнитного излучения в диапазоне частот 1,0–28,0 ГГц поглотителей, изготовленных в соответствии с представленной технологией, в зависимости от типа содержащегося в них связующего вещества (водный раствор поливинилацетата, водный раствор гипса, полиуретановая мастика). Определено, что наиболее эффективными из исследованных в ходе установления обозначенных закономерностей поглотителей ЭМИ являются те, которые содержат водный раствор поливинилацетата. Значения коэффициента поглощения электромагнитного излучения в диапазоне частот 1,0–28,0 ГГц таких поглотителей изменяются в пределах от 0,75 до 0,99. Кроме того, масса на единицу площади таких поглотителей ниже в 1,5–2,0 раза массы на единицу площади поглотителей, содержащих водный раствор гипса или полиуретановую мастику. Изготовленные по представленной технологии поглотители ЭМИ СВЧ-диапазона характеризуются более высокой механической прочностью, а также более низкой стоимостью в сравнении с аналогами и рекомендованы для использования при создании безэховых камер.</p></abstract><trans-abstract xml:lang="en"><p>A new technology for manufacturing microwave electromagnetic radiation (EMR) absorbers characterized by a geometrically inhomogeneous surface is presented. The novelty of the presented technology lies in the use of radiotransparent polymer forms with hemispherical depressions of the same volume, which are the component for the formation of the surface layer of absorbers. The technology consists in filling these molds with a mixture of powdered activated (birch) charcoal and the binder in the liquid phase and further drying it in the forms. Compared with analogues, the developed technology is characterized by low complexity of reproduction. Most of the time required to implement the presented technology is associated with the drying process of a mixture of powdered activated birch charcoal and a binder. The experimentally established patterns of changes in the values of electromagnetic radiation reflection and absorption coefficients in the frequency range 1.0–28.0 GHz of the absorbers manufactured in accordance with the presented technology are provided, depending on the type of binder contained in them (polyvinyl acetate aqueous solution, gypsum aqueous solution, polyurethane mastic). It was determined that the most effective of the EMR absorbers studied in the course of establishing the indicated patterns are those ones that contain an aqueous solution of polyvinyl acetate. Electromagnetic radiation absorption coefficient values in the frequency range 1.0–28.0 GHz of such absorbers vary from 0.75 to 0.99. In addition, the mass per unit area of such absorbers is 1.5–2.0 times less than the mass per unit area of absorbers containing an gypsum aqueous solution or polyurethane mastic. Microwave EMR absorbers manufactured using the presented technology are characterized by higher mechanical strength, as well as lower cost compared to analogues and are recommended for use in the creation of anechoic chambers.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коэффициент отражения</kwd><kwd>коэффициент поглощения</kwd><kwd>порошкообразный активированный древесный уголь</kwd><kwd>электромагнитное излучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reflection coefficient</kwd><kwd>absorption coefficient</kwd><kwd>powdered activated charcoal</kwd><kwd>electromagnetic radiation</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">Effect on Source Signal Condition for Pyramidal Microwave Absorber Performance / H. Nornikman [et al.] // Int. 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