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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 custom-type="elpub" pub-id-type="custom">radioelectronics-133</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>МИКРО- И НАНОЭЛЕКТРОНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICRO- AND NANOELECTRONICS</subject></subj-group></article-categories><title-group><article-title>Метод уменьшения размеров микрополосковых мостовых устройств</article-title><trans-title-group xml:lang="en"><trans-title>A Novel Method of Design of Miniaturized Microstrip Branch-Line Couplers</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>Летавин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Letavin</surname><given-names>D. A.</given-names></name></name-alternatives><email xlink:type="simple">d.a.letavin@urfu.ru</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>Мительман</surname><given-names>Ю. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitelman</surname><given-names>Y. E.</given-names></name></name-alternatives><email xlink:type="simple">y.e.mitelman@urfu.ru</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>Чечеткин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chechetkin</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">v.a.chechetkin@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет им. первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2016</year></pub-date><volume>0</volume><issue>5</issue><fpage>52</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Летавин Д.А., Мительман Ю.Е., Чечеткин В.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Летавин Д.А., Мительман Ю.Е., Чечеткин В.А.</copyright-holder><copyright-holder xml:lang="en">Letavin D.A., Mitelman Y.E., Chechetkin V.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://re.eltech.ru/jour/article/view/133">https://re.eltech.ru/jour/article/view/133</self-uri><abstract><p>Описана процедура проектирования миниатюрных квадратурных мостовых устройств, основанная на замене отрезка микрополосковой линии передачи на фильтр нижних частот, обладающий таким же фазовым сдвигом, что и заменяемый отрезок. Проведено моделирование предлагаемых конструкций и получены их частотные характеристики. Представлены изготовленные опытные образцы и результаты измерения их характеристик, подтверждающие работоспособность устройства.</p></abstract><trans-abstract xml:lang="en"><p>The design of miniature quadrature bridge devices based on replacement of a segment of microstrip transmission line on a low-pass filter, which has the same phase shift that model segment is described. The simulation of the proposed designs are held and their frequency characteristics are obtained. Prototypes and the results of measurement of their characteristics, confirming the efficiency of the device are presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Микрополосковая линия</kwd><kwd>фильтр нижних частот</kwd><kwd>направленный ответитель</kwd><kwd>миниатюризация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Microstrip Line</kwd><kwd>Lowpass Filter</kwd><kwd>Branch-Line Coupler</kwd><kwd>Miniaturization</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">Liao S.-S., Peng J.-T. Compact Planar Microstrip Branch-Line Couplers using the Quasi-Lumped Elements Approach with Nonsymmetrical and Symmetrical T-Shaped Structure // IEEE Trans. on Microw. Theory Tech. 2006. Vol. MTT-54, iss. 9. P. 3508-3514.</mixed-citation><mixed-citation xml:lang="en">Liao S.-S., Peng J.-T. 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