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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-192</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>ЭЛЕКТРОДИНАМИКА, МИКРОВОЛНОВАЯ ТЕХНИКА, АНТЕННЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRODYNAMICS, MICROWAVE ENGINEERING, ANTENNAS</subject></subj-group></article-categories><title-group><article-title>Анализ влияния параметров операционного усилителя на характеристики конвертора отрицательного импеданса</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of Operational Amplifier Parameter Impact on Negative-Impedance Converter Characteristics</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>Беленко</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belenko</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры радиоэлектронных средств Санкт-Петербургского государственного электротехнического университета "ЛЭТИ"  им. В. И. Ульянова (Ленина). Окончил Таганрогский технологический институт  Южного федерального университета (2010) по специальности "Радиофизика и  электроника". Автор двух научных публикаций. Сфера научных интересов -  радиотехника, устройства СВЧ</p></bio><bio xml:lang="en"><p>Dipl.-engineer in radiophysics and electronics (2010, Taganrog Technological Institute of Southern Federal  University), postgraduate student of the Department of Radio Electronic Equipment of Saint Petersburg Electrotechnical University "LETI". The author of  2 scientific publications. Area of expertise: radio equipment; microwave devices</p></bio><email xlink:type="simple">den.belenko@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В. И. Ульянова (Ленина)<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg Electrotechnical University "LETI"<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2017</year></pub-date><volume>0</volume><issue>5</issue><fpage>36</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Беленко Д.В., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Беленко Д.В.</copyright-holder><copyright-holder xml:lang="en">Belenko D.V.</copyright-holder><license 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/192">https://re.eltech.ru/jour/article/view/192</self-uri><abstract><p>Рассмотрено использование операционного усилителя (ОУ) с характеристикой вида фильтра нижних частот, большим коэффициентом усиления по постоянному току и единственным  полюсом в частотной характеристике в качестве компенсатора отрицательной  индуктивности (КОИ) при подключении электрически малоразмерной штыревой антенны  (ЭМША) к нагрузке. Предложена простая методика анализа цепей КОИ. Получены  аналитические выражения для анализа параметров КОИ в зависимости от частоты в случае  использования ОУ с конечной рабочей полосой частот и приведены результаты сравнения с идеальными цепями КОИ.  Результаты показывают, что конечная полоса частот ОУ оказывает влияние на входной  импеданс КОИ на частотах, в 10 раз меньших частоты единичного усиления ОУ. Полученные  аналитические результаты хорошо согласуются с измерениями экспериментального макета, реализующего КОИ для согласования импеданса ЭМША.</p></abstract><trans-abstract xml:lang="en"><p>The article deals with a low pass op-amp model with high gain at DC and a single-pole frequency response and presents a technique for  simple analysis of negative inductance compensator (NIC) circuits.  Analytical expressions are derived fo r NIC frequency response analysis in case of operational amplifier finite bandwidth. Besides, the ideal NIC circuit comparison results are provided. Calculations show that op-amp  finite bandwidth has impact on NIC impedance at fre quencies 10 times  lower than gain-bandwidth product. The obtained analytical results are  in good agreement with experimental setup measurements of NIC implementation to electrically small antenna impedance matching.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Электрически малоразмерная штыревая антенна</kwd><kwd>согласование</kwd><kwd>отрицательный реактивный элемент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Electrically-Small Whip Antenna</kwd><kwd>Matching</kwd><kwd>Negative Reactive Element</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">Aberle J. T., Loepsinger-R. Antennas with Non-Foster Matching Networks // Synthesis Lectures on Antennas. 2007. Vol. 2, № 1. P. 1-53.</mixed-citation><mixed-citation xml:lang="en">Aberle J. T., Loepsinger-R. 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