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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Communications Technology and Electronics</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Communications Technology and Electronics</journal-title><trans-title-group xml:lang="ru"><trans-title>Радиотехника и электроника</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0033-8494</issn><issn publication-format="electronic">3034-5901</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">650703</article-id><article-id pub-id-type="doi">10.31857/S0033849424030085</article-id><article-id pub-id-type="edn">JUYVNY</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NEW ELECTRONIC SYSTEMS AND ELEMENTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НОВЫЕ РАДИОЭЛЕКТРОННЫЕ СИСТЕМЫ И ЭЛЕМЕНТЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Analysis of a passive frequency mixer with current control by using protective intervals of heterodyne signals</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ пассивного смесителя частот с управлением по току при использовании защитных интервалов сигналов гетеродина</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tran</surname><given-names>T. D.</given-names></name><name xml:lang="ru"><surname>Чан</surname><given-names>Т. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>korotkov@spbstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korotkov</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Коротков</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>korotkov@spbstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peter the Great St-Petersburg Polytechnic University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский политехнический университет Петра Великого</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-14" publication-format="electronic"><day>14</day><month>03</month><year>2024</year></pub-date><volume>69</volume><issue>3</issue><fpage>288</fpage><lpage>298</lpage><history><date date-type="received" iso-8601-date="2025-01-31"><day>31</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0033-8494/article/view/650703">https://innoscience.ru/0033-8494/article/view/650703</self-uri><abstract xml:lang="en"><p>A generalized technique for analyzing a current-controlled passive frequency mixer circuit using guard intervals between adjacent heterodyne signal pulses is proposed. The results of calculations and simulations in the Micro-Cap environment are presented for two cases of mixer input impedance: RLC circuit, RC circuit. The dependences of the modulus of the transfer impedance of the mixer for various durations of protective intervals are considered.</p></abstract><trans-abstract xml:lang="ru"><p>Предложена обобщенная методика анализа схемы пассивного смесителя частот с управлением по току при использовании защитных интервалов между соседними импульсами сигналов гетеродина. Приведены результаты расчета и моделирования в среде Micro-Cap для двух случаев входного импеданса смесителя: <italic>RLC</italic>-контур,<italic> </italic><italic>RC</italic>-цепь. Рассмотрены зависимости модуля передаточного импеданса смесителя для различных длительностей защитных интервалов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>passive frequency mixer</kwd><kwd>heterodyne</kwd><kwd>transfer mixer module</kwd><kwd>protective interval</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пассивный смеситель частот</kwd><kwd>гетеродин</kwd><kwd>модуль передаточного смесителя</kwd><kwd>защитный интервал</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>075-15-2022-31</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lin F., Mak P. I., Martins R. 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