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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">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2024-22-1-39-47</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-3856</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>ЭЛЕКТРОНИКА, РАДИОФИЗИКА, РАДИОТЕХНИКА, ИНФОРМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, RADIOPHYSICS, RADIOENGINEERING, INFORMATICS</subject></subj-group></article-categories><title-group><article-title>Экспериментальные исследования характеристик и разработка моделей нелинейности усилителей радиочастоты диапазона FR1</article-title><trans-title-group xml:lang="en"><trans-title>Experimental Investigation of Characteristics and Development of Nonlinearity Models for FR1-Range Radio-Frequency Amplifiers</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>Мордачев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mordachev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мордачев Владимир Иванович, канд. техн. наук, доц., зав. науч.-исслед. лаб. электромагнитной совместимости радиоэлектронных средств НИЧ (НИЛ «ЭМС РЭС» НИЧ)</p><p>220013, г. Минск, ул. П. Бровки, 6</p><p>Тел.: +375 17 293-84-38</p></bio><bio xml:lang="en"><p>Mordachev Vladimir Ivanovich, Сand. of Sci., Associate Professor, Head of the EMC R&amp;D Laboratory</p><p>220013, Minsk, P. Brovki St., 6</p><p>Tel.: +375 17 293-84-38</p></bio><email xlink:type="simple">mordachev@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>Синькевич</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sinkevich</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>зам. зав. НИЛ «ЭМС РЭС» НИЧ</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Deputy Head of the EMC R&amp;D Laboratory</p><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>Фаю</surname><given-names>Ван</given-names></name><name name-style="western" xml:lang="en"><surname>Fayu</surname><given-names>Wan</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р филос.</p><p>г. Нанкин</p></bio><bio xml:lang="en"><p>PhD, Professor</p><p>Nanjing</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ционенко</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsyanenka</surname><given-names>D. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, доц., ст. науч. сотр. НИЛ «ЭМС РЭС» НИЧ</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Сand. of Sci., Associate Professor, Senior Researcher at the EMC R&amp;D Laboratory</p><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>Шакинко</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakinka</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотр. НИЛ «ЭМС РЭС» НИЧ</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Researcher at the EMC R&amp;D Laboratory</p><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>Дубовик</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dubovik</surname><given-names>А. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инж. НИЛ «ЭМС РЭС» НИЧ</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Engineer at the EMC R&amp;D Laboratory</p><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 государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Нанкинский университет информационных наук и технологий</institution></aff><aff xml:lang="en"><institution>Nanjing University of Information Science and Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2024</year></pub-date><volume>22</volume><issue>1</issue><fpage>39</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мордачев В.И., Синькевич Е.В., Фаю В., Ционенко Д.А., Шакинко И.В., Дубовик А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мордачев В.И., Синькевич Е.В., Фаю В., Ционенко Д.А., Шакинко И.В., Дубовик А.А.</copyright-holder><copyright-holder xml:lang="en">Mordachev V.I., Sinkevich E.V., Fayu W., Tsyanenka D.А., Shakinka I.V., Dubovik А.А.</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://doklady.bsuir.by/jour/article/view/3856">https://doklady.bsuir.by/jour/article/view/3856</self-uri><abstract><p>Выполнены экспериментальные исследования нелинейных свойств маломощных усилителей радиочастоты, аналогичных используемым в оборудовании мобильной связи 4G/5G диапазона FR1. Измерения характеристик усилителей проведены с применением технологии двухчастотного зондирования на частотах полосы n7 (2500–2570 / 2620–2690 МГц), выделенной в республике для систем мобильной связи 4G, и полосы n78 (3300–3800 МГц), которую планируется использовать в республике для систем мобильной связи 5G. На основе результатов измерений двухчастотных характеристик усилителей, их односигнальных амплитудных характеристик, а также двухсигнальных амплитудных характеристик и значений динамического диапазона по интермодуляции 3-, 5-, 7- и 9-го порядков в первой гармонической зоне синтезированы полиномиальные модели высоких порядков, описывающие передаточные характеристики исследуемых усилителей. Синтезированные модели пригодны для применения в широком динамическом диапазоне входных воздействий при одновременном анализе нелинейных эффектов всех видов, представляющих опасность для радиоприема в сложной электромагнитной обстановке в полосах частот мобильной (сотовой) связи, – как «тонких» (интермодуляция), так и «грубых» (блокирование, перекрестные искажения) эффектов. При использовании технологии дискретного нелинейного анализа поведения радиооборудования в сложной электромагнитной обстановке полученные модели обеспечивают высокую эффективность количественного анализа нелинейных процессов и радиопомех, возникающих в оборудовании и радиосетях 4G/5G/6G в сложной электромагнитной обстановке.</p></abstract><trans-abstract xml:lang="en"><p>Experimental studies of nonlinear properties of low-power radio-frequency amplifiers similar to those used in 4G/5G mobile communication equipment of the FR1 frequency range are carried out. The measurements of the characteristics of the amplifiers are performed by using the double-frequency testing technique at frequencies of the n7 band (2500–2570 / 2620–2690 MHz), which is allocated in Belarus for 4G mobile communication systems, and the n78 band (3300–3800 MHz), which is planned to be used in Belarus for 5G mobile communications. Based on the results of the measurements of double-frequency characteristics of the amplifiers, their single-tone amplitude characteristics, as well as two-tone characteristics and values of the dynamic range of 3-, 5-, 7-, and 9th order intermodulation in the first harmonic zone, high-order polynomial models of transfer characteristics of the investigated amplifiers are synthesized. The synthesized models are suitable for use in a wide dynamic range of input signals in case of simultaneous modeling of nonlinear effects of all kinds that pose a danger to radio reception in a complex electromagnetic environment created in the frequency bands of mobile (cellular) communications: both “subtle” effects (intermodulation) and “rough” effects (desensitization, cross-modulation). When using the technology of discrete nonlinear analysis of the behavior of radio equipment in a complex electromagnetic environment, the obtained models provide high efficiency of simulation and quantitative analysis of nonlinear processes and radio interference occurring in 4G/5G/6G radio equipment and networks in a complex electromagnetic environment.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мобильная связь</kwd><kwd>4G</kwd><kwd>5G</kwd><kwd>электромагнитная обстановка</kwd><kwd>усилитель радиочастоты</kwd><kwd>нелинейность</kwd><kwd>интермодуляция</kwd><kwd>блокирование</kwd><kwd>динамический диапазон</kwd><kwd>полиномиальная модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mobile communications</kwd><kwd>4G</kwd><kwd>5G</kwd><kwd>electromagnetic environment</kwd><kwd>radio-frequency amplifier</kwd><kwd>nonlinearity</kwd><kwd>intermodulation</kwd><kwd>desensitization</kwd><kwd>dynamic range</kwd><kwd>polynomial model</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках совместного научного проекта Т22КИТГ-018 (2022YFE0122700) при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований и Национальной программы ключевых исследований и разработок (КНР).</funding-statement><funding-statement xml:lang="en">The research was carried out within the framework of joint scientific project Т22KITG-018 (2022YFE0122700) with the financial support of the Belarusian Republication Foundation for Fundamental Research and the National Key Research and Development Program (People’s Republic of China).</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">Zhang Z., Xiao Y., Ma Z., Xiao M., Ding Z., Lei X., et al. 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