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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">energy</journal-id><journal-title-group><journal-title xml:lang="ru">Энергетика. Известия высших учебных заведений и энергетических объединений СНГ</journal-title><trans-title-group xml:lang="en"><trans-title>ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-7448</issn><issn pub-type="epub">2414-0341</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/1029-7448-2025-68-6-483-490</article-id><article-id custom-type="elpub" pub-id-type="custom">energy-2518</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>ЭЛЕКТРОЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRICAL POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Моделирование электромагнитных характеристик приемника терагерцового излучения</article-title><trans-title-group xml:lang="en"><trans-title>Simulation of Electromagnetic Characteristics of a Terahertz Receiver</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есман</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Esman</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зыков</surname><given-names>Г. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Zykov</surname><given-names>G. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки:  Зыков Григорий Люцианович Белорусский национальный технический университет просп. Независимости, 65,220013, г. Минск, Республика БеларусьТел.: +375 17 331-00-50</p><p>zikov@bntu.by</p></bio><bio xml:lang="en"><p>Address for correspondence:Zykov Gregory L.Belarusian National Technical University 65, Nezavisimosty Ave.,220013, Minsk, Republic of Belarus Tel.: +375 17 331-00-50</p><p>zikov@bntu.by</p></bio><email xlink:type="simple">zikov@bntu.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>Кулешов</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuleshov</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>12</month><year>2025</year></pub-date><volume>68</volume><issue>6</issue><fpage>483</fpage><lpage>490</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Есман А.К., Зыков Г.Л., Кулешов В.К., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Есман А.К., Зыков Г.Л., Кулешов В.К.</copyright-holder><copyright-holder xml:lang="en">Esman A.K., Zykov G.I., Kuleshov V.K.</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://energy.bntu.by/jour/article/view/2518">https://energy.bntu.by/jour/article/view/2518</self-uri><abstract><p>Электромагнитное излучение терагерцового диапазона (ТГц) находит применение в различных областях науки и технологии (медицинская диагностика, безопасность и контроль, сенсорные технологии, коммуникационные технологии, научные исследования и т.д.). Компьютерное моделирование в разработке и исследовании ТГц-приемников значительно сокращает затраты и время вывода продукта на рынок, заменяя дорогостоящие эксперименты. Современные программные комплексы, такие как HFSS, позволяют точно моделировать сложные трехмерные конфигурации и анализировать электродинамические характеристики компонентов. В рамках исследования параметров ТГц-приемника в диапазоне 0.4–1.4 ТГц использовалось моделирование в HFSS, где точность результатов зависит от корректности модели, включая детализацию геометрии, свойства материалов и параметры симуляции. В данной работе предложена трехмерная модель оригинального селективного компактного приемника электромагнитного излучения терагерцового диапазона длин волн (с эффективностью преобразования ~97 %) для двух резонансных частот, состоящего из чувствительного элемента, выполненного на основе двух открытых аподизированных периодических микрорезонаторных структур с коэффициентом заполнения, изменяющимся по линейному закону, согласующего элемента в виде несимметричной нерегулярной полосковой линии треугольной формы и детектирующего диода. Конструкция обладает ключевыми преимуществами, включая высокую эффективность преобразования, пригодность для матричной архитектуры, высокую селективность к регистрируемому излучению и возможность простых методов считывания, что делает ее привлекательным подходом для терагерцового зондирования – важного инструмента для различных научных и практических приложений.</p></abstract><trans-abstract xml:lang="en"><p>Electromagnetic radiation of the terahertz range (THz) is used in various fields of science and technology: medical diagnostics, security and control, sensor and communication technologies, scientific research, etc. Computer simulation in the development and research of THz receivers significantly reduces costs and time-to-market by replacing expensive experiments. Advanced software suites, like HFSS, facilitate the accurate modeling of intricate three-dimensional configurations and the analysis of component electrodynamic performance. This study leveraged HFSS to simulate the performance of a THz receiver across the 0.4–1.4 THz band. The accuracy of the simulations relies on the fidelity of the model, encompassing geometric details, material properties, and chosen simulation parameters. This paper proposes a three-dimensional model of an original selective compact receiver of terahertz electromagnetic radiation (with a conversion efficiency of~97 %) for two resonance frequencies, consisting of a sensor based on two open apodized periodic microcavity structures with a fill factor changing according to a linear law, a matching element in the form of an asymmetric irregular triangular strip line, and a detecting diode. The design offers key advantages including high conversion efficiency, suitability for matrix architectures, high selectivity to registered radiation, and the potential for simple readout methods, making it an attractive approach for THz sensing, an important tool across various scientific and practical applications.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>чувствительный элемент</kwd><kwd>детектирующий диод</kwd><kwd>терагерцовое излучение</kwd><kwd>трехмерная модель</kwd><kwd>резонансная частота</kwd><kwd>HFSS</kwd><kwd>эффективность преобразования</kwd><kwd>потери на отражение</kwd><kwd>коэффициент направленного действия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sensor</kwd><kwd>detecting diode</kwd><kwd>terahertz radiation</kwd><kwd>3D model</kwd><kwd>resonance frequency</kwd><kwd>HFSS</kwd><kwd>conversion efficiency</kwd><kwd>reflection losses</kwd><kwd>directivity</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">Makhlouf S., Cojocari O., Hofmann M., Nagatsuma T., Preu S., Weimann N., Hübers H.-W., Stöhr A. 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