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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="other" 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">650618</article-id><article-id pub-id-type="doi">10.31857/S0033849423010011</article-id><article-id pub-id-type="edn">CCCGFN</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>АНТЕННО-ФИДЕРНЫЕ&#13;
СИСТЕМЫ</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>АНТЕННО-ФИДЕРНЫЕСИСТЕМЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Simulation and Experimental Study of a Linear Bifocal Antenna Array</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование и экспериментальное исследование линейной бифокальной антенной решетки</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bankov</surname><given-names>S. E.</given-names></name><name xml:lang="ru"><surname>Банков</surname><given-names>С. Е.</given-names></name></name-alternatives><email>sbankov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Frolova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Фролова</surname><given-names>Е. В.</given-names></name></name-alternatives><email>sbankov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kalinichev</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Калиничев</surname><given-names>В. И.</given-names></name></name-alternatives><email>sbankov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт радиотехники и электроники им. В.А. Котельникова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-01-01" publication-format="electronic"><day>01</day><month>01</month><year>2023</year></pub-date><volume>68</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>44</fpage><lpage>54</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 ©; 2023, С.Е. Банков, Е.В. Фролова, В.И. Калиничев</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, С.Е. Банков, Е.В. Фролова, В.И. Калиничев</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">С.Е. Банков, Е.В. Фролова, В.И. Калиничев</copyright-holder><copyright-holder xml:lang="ru">С.Е. Банков, Е.В. Фролова, В.И. Калиничев</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0033-8494/article/view/650618">https://innoscience.ru/0033-8494/article/view/650618</self-uri><abstract xml:lang="en"><p>A leaky-wave bifocal linear array focused in the Fresnel zone is considered. The structural parameters provide perfect focusing of the field at two points corresponding to two different frequencies. An approximate theory of antenna arrays is used to analyze the bifocal array, to study the shape of the frequency scanning arc, and to determine the field distribution in the focal spot. An electrodynamic simulation is performed for a strip array with slotted radiators. The scattering parameters of the array and its radiation characteristicsare presented. The design features of a strip antenna that suppress the effect of normal are discussed. The results of an experimental study of a strip bifocal array are presented. The possibility of implementation of a symmetrical scanning arc and a relatively low level of optical aberrations is shown.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324073200">Рассмотрена сфокусированная в зоне Френеля бифокальная линейная решетка вытекающей волны. Параметры структуры обеспечивают идеальную фокусировку поля в двух точках, соответствующих двум разным частотам. В рамках приближенной теории антенных решеток проведен анализ бифокальной решетки, исследованы форма дуги частотного сканирования и распределение поля в фокальном пятне. Для полосковой решетки с щелевыми излучателями выполнено электродинамическое моделирование. Представлены параметры рассеяния решетки и ее характеристики излучения. Обсуждаются особенности конструкции полосковой антенны, обеспечивающие уменьшение влияния эффекта нормали. Приведены результаты экспериментального исследования полосковой бифокальной решетки. Показана возможность реализации симметричной дуги сканирования и достижения низкого уровня оптических аберраций.</p></trans-abstract><kwd-group xml:lang="en"><kwd>leaky-wave</kwd><kwd>bifocal linear array</kwd><kwd>strip antennaб optical aberrations</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Buffi A., Serra A., Nepa P., Chou H., Manara G. // IEEE Trans. 2010. V. AP-58. № 5. P. 1536.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Nguyen P.T., Abbosh A.M., Crozier S. // IEEE Trans. 2017. V. AP-6. № 7. P. 3489.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Tofigh F., Nourinia J., Azarmanesh M.N., Khazaei K.M. // IEEE Antennas Wireless Propag. 2014. V. 13. № 5. P. 951.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Stephan K.D., Mead J.B., Pozar D.M. et al. // IEEE Trans. 2007. V. AP-55. № 4. 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