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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">10.32603/1993-8985-2021-24-4-57-67</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-542</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>РАДИОЛОКАЦИЯ И РАДИОНАВИГАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADAR AND NAVIGATION</subject></subj-group></article-categories><title-group><article-title>Экспериментальные и численные исследования диаграмм обратного рассеяния блоков маскирующих цифровых двухбитных метапокрытий</article-title><trans-title-group xml:lang="en"><trans-title>Experimental and Numerical Investigations of Backscatter Patterns of the Blocks of Masking Digital Two-Bit Meta-covers</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0601-7263</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенихин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Semenikhin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семенихин Андрей Илларионович – кандидат технических наук (1984), доцент (1987) кафедры антенн и радиопередающих устройств. Почетный работник высшего профессионального образования РФ (2006). </p><p>Некрасовский пер., д. 44, Таганрог, Ростовская область, 347922</p></bio><bio xml:lang="en"><p>Andrey I. Semenikhin, Cand. Sci. (Eng.) (1984), docent (1987) of the Department of Antennas and Radio Transmitting Devices of Institute of Radio Engineering Systems and Control of Southern Federal University (IRESC SFU). Honorary Worker of Higher Professional Education of the Russian Federation (2006). </p><p>44 Nekrasovsky Ln., Taganrog, Rostov Region 347922 </p></bio><email xlink:type="simple">anilsem@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1899-5961</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенихина</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Semenikhina</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семенихина Диана Викторовна – доктор технических наук (2000), доцент (1993), профессор кафедры антенн и радиопередающих устройств. </p><p>Некрасовский пер., д. 44, Таганрог, Ростовская область, 347922</p></bio><bio xml:lang="en"><p>Diana V. Semenikhina, Dr. Sci. (Eng.) (2000), Professor (1993) of the Department of Antennas and Radio Transmitting Devices. </p><p>44 Nekrasovsky Ln., Taganrog, Rostov Region 347922 </p></bio><email xlink:type="simple">d_semenihina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8448-5508</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юханов</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yukhanov</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юханов Юрий Владимирович – доктор технических наук (1997), профессор (2000), заведующий кафедрой антенн и радиопередающих устройств. Почетный работник высшего профессионального образования РФ (2007). </p><p>Некрасовский пер., д. 44, Таганрог, Ростовская область, 347922</p></bio><bio xml:lang="en"><p>Yury V. Yukhanov, Dr. Sci. (Eng.) (1997), Professor (2000), the Head of the Department of Antennas and Radio Transmitting Devices. Honorary Worker of Higher Professional Education of the Russian Federation (2007). </p><p>44 Nekrasovsky Ln., Taganrog, Rostov Region 347922 </p></bio><email xlink:type="simple">yu_yukhanov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3170-2617</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Благовисный</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Blagovisnyy</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Благовисный Павел Вадимович – дипломированный инженер-механик (2010), аспирант кафедры антенн и радиопередающих устройств, инженер центра фотоники и двумерных материалов</p><p>Институтский пер., д. 9, Долгопрудный, Московская область, 141701</p></bio><bio xml:lang="en"><p>Pavel V. Blagovisnyy, mechanical engineer (2010), post-graduate student of the Department of Antennas and Radio Transmitting Devices, engineer of the Center for Photonics and 2D Materials of Moscow Institute of Physics and Technology. </p><p>9 Institutskiy Ln., Dolgoprudny, Moscow Region 141701 </p></bio><email xlink:type="simple">pavelblagvisnyy@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8585-4256</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильин Игорь Васильевич – младший научный сотрудник Центра коллективного пользования "Прикладная электродинамика и антенные измерения" ЮФУ. </p><p>Некрасовский пер., д. 44, Таганрог, Ростовская область, 347922</p></bio><bio xml:lang="en"><p>Igor V. Ilyin, junior researcher of the Share Scientific Center "Applied Electrodynamics and Antenna Measurements". </p><p>44 Nekrasovsky Ln., Taganrog, Rostov Region 347922 </p></bio><email xlink:type="simple">ivi.igor@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт радиотехнических систем и управления Южного федерального университета</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of radio engineering systems and control of Southern Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт радиотехнических систем и управления Южного федерального университета; Центр фотоники и двумерных материалов Московского физико-технического института</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of radio engineering systems and control of Southern Federal University; Center for Photonics and 2D Materials of Moscow Institute of Physics and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2021</year></pub-date><volume>24</volume><issue>4</issue><fpage>57</fpage><lpage>67</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семенихин А.И., Семенихина Д.В., Юханов Ю.В., Благовисный П.В., Ильин И.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Семенихин А.И., Семенихина Д.В., Юханов Ю.В., Благовисный П.В., Ильин И.В.</copyright-holder><copyright-holder xml:lang="en">Semenikhin A.I., Semenikhina D.V., Yukhanov Y.V., Blagovisnyy P.V., Ilyin I.V.</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/542">https://re.eltech.ru/jour/article/view/542</self-uri><abstract><p>Введение. Диаграммы рассеяния непоглощающих кодированных шахматно-подобных метапокрытий (МП) для снижения эффективной площади рассеяния (ЭПР) металлических поверхностей объектов неизбежно содержат боковые дифракционные лепестки. В связи с этим актуальна разработка МП с низким уровнем дифракционных лепестков. С этой целью предложено использовать шахматно-подобные МП в виде набора нескольких основных плоских блоков с одинаковыми размерами. В статье рассмотрены 2 таких основных блока МП с разными матрицами кодирования. Ячейки метаповерхности содержат связанные эллиптические кольцевые резонаторы и отличаются двухбитным кодированием угла наклона оси анизотропии. Матрицы кодирования блоков МП построены по блочному принципу.Цель работы. Экспериментально и численно исследовать диаграммы обратного рассеяния (ДОР) на согласованной (ко-) и ортогональной (кросс-) поляризациях двух разработанных плоских блоков двухбитных цифровых непоглощающих анизотропных МП для различных плоскостей и поляризаций облучения.Материалы и методы. Полноволновое моделирование блоков МП выполнено в программе HFSS методом конечных элементов. Измерения ДОР изготовленных макетов МП проведены на автоматизированном информационно-вычислительном комплексе АИВК-ТМСА-1.0-40.0-ДБ3/TD,FD в безэховой камере ЦКП "Прикладная электродинамика и антенные измерения" Южного федерального университета.Результаты. Снижение моностатических ЭПР двух блоков при нормальном облучении примерно одинаково и составляет не менее 12 дБ в полосе от 9.8 до 21 ГГц. Отмечено хорошее совпадение результатов полноволнового моделирования и измерения ДОР блоков разработанных метапокрытий в области центральных лепестков для различных плоскостей и поляризаций облучения. В главных плоскостях блоки гасят центральные лепестки ДОР на 10…25 дБ; в секторе углов около ±40° обратная ЭПР блоков ниже, чем у эталона. В диагональных плоскостях наблюдается гашение ЭПР на 13…15 дБ и расширение центрального лепестка ДОР на кополяризациях, а также раздвоение этого лепестка на кроссполяризациях в секторе углов ±9°. Вне этого сектора ЭПР блоков соизмерима с ЭПР эталона.Заключение. Разработанные блоки двухбитных цифровых непоглощающих анизотропных МП могут применяться для широкополосного гашения ЭПР металлических поверхностей.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. The scattering patterns of non-absorbing coded checkerboard-like meta-coatings (MCs) applied for reducing the radar cross section (RCS) of metal surfaces inevitably contain side diffraction lobes. Therefore, the development of MCs with a low level of diffraction lobes is relevant. For this purpose, it is proposed to use checkerboard-like MCs in the form of a set of several basic flat blocks with the same dimensions. The paper discusses two such basic MC blocks with different coding matrices. The cells of the metasurface contain two coupled elliptical ring resonators and are distinguished by a 2-bit coding of the tilt angle of the anisotropy axis. Coding matrices of the MC blocks are built according to the block principle.Aim. To investigate experimentally and numerically backscatter patterns (BSP) for consonant (co-) and orthogonal (cross-) polarizations of the two developed flat blocks of the 2-bit digital nonabsorbing anisotropic MCs for different planes and polarizations of irradiation.Materials and methods. Full-wave simulation of the MC blocks was carried out using the HFSS software by the finite element method. BSP measurements of the fabricated MC layouts were performed in an anechoic chamber of the Center for Collective Usage “Applied Electrodynamics and Antenna Measurements” of the Southern Federal University using an automated information and computing complex.Results. The RCS reduction for the two blocks under normal irradiation is approximately the same and not less than 12 dB over the 9.8…21 GHz band. A good matching between the simulation and measurement results of backscattering patterns of the blocks in the region of the central lobes for various planes and polarizations of the irradiation is noted. In the principal planes, the blocks cancel the central lobes of the BSP by 10…25 dB; in the sector of angles of around ±40°, the backward RCS of the blocks is lower than that of the reference. In the diagonal planes, there is a cancellation of the RCS by 13…15 dB and an expansion of the central lobe of the BSP for copolarizations, as well as a bifurcation of this lobe for crosspolarizations in the sector of angles ±9°; outside of this sector the RCSs of the blocks are commensurate with the RCS of the reference.Conclusion. The developed blocks of the 2-bit digital nonabsorbing anisotropic MCs can be used for broadband cancellation of the RCS of metal surfaces.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метапокрытие</kwd><kwd>цифровая метаповерхность</kwd><kwd>диаграмма обратного рассеяния</kwd><kwd>снижение ЭПР</kwd><kwd>твист-эффект</kwd><kwd>матрица кодирования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>meta-cover</kwd><kwd>digital metasurface</kwd><kwd>backscatter pattern</kwd><kwd>RCS reduction</kwd><kwd>twist-effect</kwd><kwd>coding matrix</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в ЦКП "Прикладная электродинамика и антенные измерения" Южного федерального университета по гранту Российского научного фонда. Проект № 16-19-10537-П.</funding-statement><funding-statement xml:lang="en">The work was performed at the Сenter for Collective Usage "Applied Electrodynamics and Antenna Measurements" of the Southern Federal University, Russia, and was financially supported by the Russian Science Foundation, Project no. 16-19-10537-P.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Thin AMC Structure for Radar Cross-Section Reduction / M. Paquay, J.-C. Iriarte, I.Ederra, R. Gonzalo, P. de Maagt // IEEE Trans. on Ant. and Prop. 2007. Vol. 55, iss. 12. P. 3630-3638. doi: 10.1109/tap.2007.910306</mixed-citation><mixed-citation xml:lang="en">Paquay M., Iriarte J.-C., Ederra I., Gonzalo R., de Maagt P. Thin AMC Structure for Radar Cross-Section Reduction. 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