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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2024-2-4-12</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-2141</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>ГОСУДАРСТВЕННЫЕ ЭТАЛОНЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>STATE STANDARDS</subject></subj-group></article-categories><title-group><article-title>Государственный первичный эталон единицы волнового сопротивления в коаксиальных волноводах ГЭТ 75-2023</article-title><trans-title-group xml:lang="en"><trans-title>State primary standard of the unit of wave resistance in coaxial waveguides GET 75-2023</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>Евграфов</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Evgrafov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Иванович Евграфов</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vladimir I. Evgrafov</p><p>Novosibirsk</p></bio><email xlink:type="simple">evgrafov@sniim.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>Конышев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Konyshev</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Владимирович Конышев</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Alexander V. Konyshev</p><p>Novosibirsk</p></bio><email xlink:type="simple">konyshev@sniim.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>Конышев</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Konyshev</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Владимирович Конышев</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Nikolay V. Konyshev</p><p>Novosibirsk</p></bio><email xlink:type="simple">nkonyshev@sniim.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>Червонецкий</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chervonetsky</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Николаевич Червонецкий</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Dmitry N. Chervonetsky</p><p>Novosibirsk</p></bio><email xlink:type="simple">chervonetskii@sniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений, Западно-Сибирский филиал</institution><country>Россия</country></aff><aff xml:lang="en"><institution>West-Siberian Branch of Russian Metrological Institute of Technical Physics and Radio Engineering</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>08</day><month>04</month><year>2024</year></pub-date><volume>0</volume><issue>2</issue><fpage>4</fpage><lpage>12</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/2141">https://www.izmt.ru/jour/article/view/2141</self-uri><abstract><p>Рассмотрены вопросы измерения волнового сопротивления и комплексных коэффициентов отражения и передачи устройств, работающих на сверхвысоких частотах в коаксиальных волноводах. Измерения указанных параметров важны при разработке и производстве систем связи и передачи информации, систем радиолокации и радионавигации. С целью обеспечения единства измерений, воспроизведения и передачи единиц волнового сопротивления и комплексных коэффициентов отражения и передачи средствам измерений с коаксиальными соединителями типа 1 мм в частотном диапазоне 0,01–67 ГГц утверждён Государственный первичный эталон единицы волнового сопротивления в коаксиальных волноводах ГЭТ 75-2023. В его состав входят средства воспроизведения единицы волнового сопротивления, комплексных коэффициентов отражения, компаратор и эталоны сравнения в коаксиальном тракте сечением 1,0/0,434 мм с соединителем типа 1 мм. Уточнены выражения для расчёта параметров коаксиальных волноводов с биметаллическими проводниками. Приведены технические характеристики и результаты метрологических исследований ГЭТ 75-2023. Результаты исследований подтвердили высокие показатели точности ГЭТ 75-2023, который имеет сопоставимые метрологические характеристики с эталонами национальных метрологических институтов других стран.</p></abstract><trans-abstract xml:lang="en"><p>The issues of measuring the wave resistance and complex reflection and transmission coefficients of devices operating at ultrahigh frequencies in coaxial waveguides are considered. Measurements of these parameters are important in the development and production of communication and information transmission systems, radar and radio navigation systems. In order to ensure the uniformity of measurements, reproduction and transmission of wave resistance units and complex reflection and transmission coefficients to measuring instruments with coaxial connectors of type 1 mm in the frequency range 0.01–67 GHz, the state primary standard of the unit resistance in coaxial waveguides GET 75-2023 has been approved. It includes means of reproducing the unit of wave resistance, complex reflection coefficients, a comparator and comparison standards in a coaxial path with a cross section of 1.0/0.434 mm with a connector of type 1 mm. The expressions for calculating the parameters of coaxial waveguides with bimetallic conductors are refined. The technical characteristics and results of metrological studies of GET 75-2023 are presented. The results of the research confirmed the high accuracy of GET 75-2023, which has comparable metrological characteristics with the standards of national metrological institutes of other countries.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эталон</kwd><kwd>волновое сопротивление</kwd><kwd>коаксиальный волновод</kwd><kwd>комплексный коэффициент отражения</kwd><kwd>комплексный коэффициент передачи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>standard</kwd><kwd>wave resistance</kwd><kwd>coaxial waveguide</kwd><kwd>complex reflection coefficient</kwd><kwd>complex transfer coefficient</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">Howell K., Wong K. DC to 110 GHz measurements in coax using the 1 mm connector. Microwave Journal, 42(7), 22–34 (1999).</mixed-citation><mixed-citation xml:lang="en">Howell K., Wong K. 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