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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 pub-id-type="doi">10.32603/1993-8985-2019-22-5-33-41</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-373</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>Экспериментальное исследование широкополосной антенной решетки К-диапазона с использованием структур из искусственного неоднородного диэлектрика</article-title><trans-title-group xml:lang="en"><trans-title>Experimental Study of K-Band Broadband Antenna Array Using Artificial Inhomogeneous Dielectric Structures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8428-5562</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александрин</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrin</surname><given-names>Anton M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александрин Антон Михайлович – магистр по направлению "Радиотехника" (2009), аспирант, старший преподаватель кафедры "Радиотехника" Сибирского федерального университета. Автор 20 научных работ. Сфера научных интересов – антенны и СВЧ-устройства; широкополосные антенны и антенные решетки.</p><p>пр. Свободный, 79, г. Красноярск, 660041, Россия</p></bio><bio xml:lang="en"><p>Anton M. Aleksandrin, Master’s degree in Radio Engineering (2009), postgraduate, senior lecturer of Radio Engineering Department of the Siberian Federal University (SFU). The author of 20 scientific publications. Area of expertise: antennas and microwave devices; wideband antennas and antenna arrays.</p><p>79 Svobodny Str., Krasnoyarsk 660041, Russia</p></bio><email xlink:type="simple">aalexandrin@sfu-kras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4309-226X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саломатов</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Salomatov</surname><given-names>Yury P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саломатов Юрий Петрович – кандидат технических наук (1982), профессор (2013) кафедры "Радиотехника" Сибирского федерального университета. Автор 240 научных работ. Сфера научных интересов – ФАР; ЦФАР; квазиоптические антенны и антенные решетки.</p><p>пр. Свободный, 79, г. Красноярск, 660041, Россия</p></bio><bio xml:lang="en"><p>Yury P. Salomatov, Cand. Sci. (Eng.) (1982), Professor (2013) of Department of Radio Engineering of the Siberian Federal University. The author of 240 scientific publications. Area of expertise: phased arrays; digital phased arrays; quasi-optical antennas and antenna arrays.</p><p>79 Svobodny Str., Krasnoyarsk 660041, Russia</p></bio><email xlink:type="simple">ysalomatov@sfu-kras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>04</day><month>12</month><year>2019</year></pub-date><volume>22</volume><issue>5</issue><fpage>33</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Александрин А.М., Саломатов Ю.П., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Александрин А.М., Саломатов Ю.П.</copyright-holder><copyright-holder xml:lang="en">Aleksandrin A.M., Salomatov Y.P.</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/373">https://re.eltech.ru/jour/article/view/373</self-uri><abstract><sec><title>Введение</title><p>Введение. В связи с освоением миллиметрового диапазона и развитием средств широкополосной связи имеется потребность в антенных системах, которые работали бы в широкой полосе частот (порядка октавной), имели высокую направленность и компактные размеры. Имеющиеся решения, как правило, не удовлетворяют данным требованиям.</p></sec><sec><title>Цель работы</title><p>Цель работы. Конструирование и экспериментальное исследование антенной решетки (АР) К-диапазона, обладающей высоким коэффициентом использования площади (КИП) и малыми продольными размерами.</p></sec><sec><title>Материалы и методы</title><p> Материалы и методы. Численные исследования проводились в САПР СВЧ (CST Studio Suite), экспериментальные исследования – на оборудовании для векторного анализа СВЧ-цепей (Agilent E8363B PNA). Характеристики направленности измерялись методом сканирования ближнего поля.</p></sec><sec><title>Результаты</title><p>Результаты. Предложен вариант реализации широкополосной АР К-диапазона (18…26 ГГц). Период АР составляет 2.25 длины волны на верхней частоте диапазона. Для подавления дифракционных лепестков использован дополнительный слой, состоящий из линз из искусственного неоднородного диэлектрика, сформированный из тонких фигурных слоев листового полиэтилентерефталата. Предложена гибридная конфигурация диаграммообразующей схемы (ДОС), в которой одна часть схемы выполнена на основе печатных двухпроводных линий передачи, а другая – на прямоугольных волноводах. АР имеет КСВ ниже 2 и КИП выше 0.5, уровень боковых и дифракционных лепестков не превышает –12 в диапазоне 18…26 ГГц. Суммарная толщина всей системы составила 50 мм, что равно 4.3λmin. Если из конструкции исключить волноводную часть, толщина может быть уменьшена до 2.5λmin что обеспечивает компактность АР при широкой полосе рабочих частот.</p></sec><sec><title>Заключение</title><p>Заключение. По сравнению с имеющимися решениями антенна имеет более простую ДОС, за счет чего улучшается согласование с фидером. За счет применения линз из неоднородного диэлектрика обеспечивается высокий апертурный КИП в широкой полосе частот.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. As a result of the extensive development of broadband communication in the millimetre wave band, there has arisen a need for antenna systems with a high level of directivity and compact dimensions, capable of operating across wide frequency ranges. However, at present, few engineering solutions satisfy this demand.</p></sec><sec><title>Aim</title><p>Aim. To develop and study experimentally a K-band antenna array (AR) characterized by a high aperture efficiency and compact longitudinal dimensions.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Computer simulations were performed using the CST Studio Suite software. Measurements were carried out using an Agilent E8363B PNA vector circuit analyzer. Radiation patterns were obtained by the method of near-field scanning.</p></sec><sec><title>Results</title><p>Results. A K-band broadband antenna array configuration operating over the 18…26 GHz range was pro-posed. It was found that the period of the array equals 2.25 wavelengths at the highest operating frequency. In order to suppress grating lobes, an additional layer consisting of artificial inhomogeneous dielectric lenses was used. The dielectric material consisted of thin curly layers of sheet polyethylene terephthalate. Additionally, a hybrid configuration of feeding network was proposed, in which one part of the network was developed by means of printed two-wire lines, while the other part was achieved by means of rectangular waveguides. The proposed antenna array demonstrates VSWR of less than 2 and an aperture efficiency above 0.5, side and diffractive lobe levels not exceed –12 in the 18…26 GHz range. The total thickness of the configuration equals 50 mm or 4.3λmin. In order to ensure the compactness of the AR for wideband frequency applications, the thickness of the system can be reduced to 2.5λmin by excluding the waveguide part.</p></sec><sec><title>Conclusion</title><p>Conclusion. When compared with existing solutions, the proposed antenna has a simpler feed network, which yields better matching. High aperture efficiency is achieved in the wide frequency range by means of inhomogeneous dielectric lenses.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>антенная решетка</kwd><kwd>широкополосная антенна</kwd><kwd>неоднородный диэлектрик</kwd><kwd>линзовая антенна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>antenna array</kwd><kwd>broadband antenna</kwd><kwd>inhomogeneous dielectric</kwd><kwd>lens antenna</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">Pi Z.,Khan F. 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