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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="research-article" 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">687513</article-id><article-id pub-id-type="doi">10.31857/S0033849425040094</article-id><article-id pub-id-type="edn">FRYYQE</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ON THE 70th ANNIVERSARY OF S.A. NIKITOV</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>К 70-ЛЕТИЮ С.А. НИКИТОВА</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Double negative media based on magnetic metamaterials and semiconductors for the microwave frequency range</article-title><trans-title-group xml:lang="ru"><trans-title>Дважды отрицательные среды на основе магнитных метаматериалов и полупроводников для микроволнового диапазона частот</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Grishin</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Гришин</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergrsh@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Amel’chenko</surname><given-names>M. D.</given-names></name><name xml:lang="ru"><surname>Амельченко</surname><given-names>М. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergrsh@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zhabova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Жабова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergrsh@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ogrin</surname><given-names>F. Yu.</given-names></name><name xml:lang="ru"><surname>Огрин</surname><given-names>Ф. Ю.</given-names></name></name-alternatives><address><country country="GB">United Kingdom</country></address><bio xml:lang="en"><p>Department of Physics, University of Exeter</p></bio><email>sergrsh@yandex.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikitov</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Никитов</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergrsh@yandex.ru</email><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saratov State University, named after N.G. Chernyshevsky</institution></aff><aff><institution xml:lang="ru">Саратовский национальный исследовательский государственный университет им. Н.Г. Чернышевского</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">University of Exeter</institution></aff><aff><institution xml:lang="ru">Эксетерский университет</institution></aff></aff-alternatives><aff id="aff3"><institution>MaxLLG Ltd.</institution></aff><aff-alternatives id="aff4"><aff><institution xml:lang="en">Kotelnikov Institute of Radioengineering and Electronics of RAS</institution></aff><aff><institution xml:lang="ru">Институт радиотехники и электроники РАН им. В.А. Котельникова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2025</year></pub-date><volume>70</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>396</fpage><lpage>404</lpage><history><date date-type="received" iso-8601-date="2025-07-14"><day>14</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-14"><day>14</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0033-8494/article/view/687513">https://journals.eco-vector.com/0033-8494/article/view/687513</self-uri><abstract xml:lang="en"><p>The results of theoretical study and MaxLLG program simulation of the ferromagnetic metamaterials with metallic (non-magnetic) inclusions, as well as the bigyrotropic media with the properties of a ferromagnetic semiconductor are presented. The possibility of obtaining the double negative media from such materials in that a backward electromagnetic wave exists at microwave frequencies is demonstrated.</p></abstract><trans-abstract xml:lang="ru"><p>Приведены результаты теоретического исследования и численного моделирования в программе MaxLLG ферромагнитных метаматериалов с металлическими (немагнитными) включениями, а также бигиротропных сред со свойствами ферромагнитного полупроводника. Продемонстрирована возможность получения из таких материалов дважды отрицательных сред, в которых на частотах микроволнового диапазона существует обратная электромагнитная волна<italic>.</italic></p></trans-abstract><kwd-group xml:lang="en"><kwd>metamaterials</kwd><kwd>double negative media</kwd><kwd>bigyrotropic media</kwd><kwd>magnetic semiconductors</kwd><kwd>backward wave</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метаматериалы</kwd><kwd>дважды отрицательные среды</kwd><kwd>бигиротропные среды</kwd><kwd>магнитные полупроводники</kwd><kwd>обратная волна</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>19-79-20121</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Metamaterials Handbook / Ed. by F. 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