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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">10.32603/1993-8985-2021-24-6-51-62</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-578</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>ПРИБОРЫ И СИСТЕМЫ ИЗМЕРЕНИЯ НА ОСНОВЕ АКУСТИЧЕСКИХ, ОПТИЧЕСКИХ И РАДИОВОЛН</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEASURING SYSTEMS AND INSTRUMENTS BASED ON ACOUSTIC, OPTICAL AND RADIO WAVES</subject></subj-group></article-categories><title-group><article-title>Оптимизация конструкции встречно-штыревого преобразователя  кольцевого резонатора на поверхностных акустических волнах</article-title><trans-title-group xml:lang="en"><trans-title>Optimizing the Design of Surface-Acoustic-Wave Ring Resonator by Changing the Interdigitated Transducer Topology</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4047-7757</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевченко</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevchenko</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шевченко Сергей Юрьевич – кандидат технических наук (2007), доцент (2013) кафедры ЛИНС. Автор более 80 научных публикаций. Сфера научных интересов – микросенсоры навигационных систем.</p><p>ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Sergey Yu. Shevchenko, Cand. Sci. (2007), Associate Professor (2013) of the Department of Laser Measurement and Navigation Systems. The author of more than 80 scientific publications. Area of expertise: microsensors of navigation systems.</p><p>5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">syshevchenko@mail.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/0000-0001-8274-1475</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайленко</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailenko</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михайленко  Денис  Андреевич – аспирант кафедры ЛИНС. Автор трех научных публикаций. Сфера научных интересов – микромеханические системы навигации и компьютерное моделирование физических процессов.</p><p>ул. Профессора Попова, д. 5, Санкт-Петербург, 197376</p></bio><bio xml:lang="en"><p>Denis A. Mikhailenko, Postgraduate of the Department of Laser Measurement and Navigation Systems. The author of 3 scientific publications. Area of expertise: micromechanical navigation systems and computer simulation of physical processes.</p><p>5 Professor Popov St., St Petersburg 197376</p></bio><email xlink:type="simple">kratosloaded@mail.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>Ньямверу</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nyamweru</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ньямверу Бонифаций – студент Департамента правовой и промышленной метрологии. Сфера научных интересов – оптические метрологические системы.</p><p>ул. Биби-Тити-Мохаммед, Дар-эс-Салам, 1968</p></bio><bio xml:lang="en"><p>Boniface Nyamweru, student at the Department of Legal and Industrial Metrology. Area of expertise: optical metrology systems.</p><p>Bibi Titi Mohamed St., Dar es Salaam 1968</p></bio><email xlink:type="simple">bonifacenyamweru23@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В. И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Колледж бизнес-образования CBE</institution><country>Танзания</country></aff><aff xml:lang="en"><institution>College of Business Education CBE</institution><country>United Republic of Tanzania</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2021</year></pub-date><volume>24</volume><issue>6</issue><fpage>51</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шевченко С.Ю., Михайленко Д.А., Ньямверу Б., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Шевченко С.Ю., Михайленко Д.А., Ньямверу Б.</copyright-holder><copyright-holder xml:lang="en">Shevchenko S.Y., Mikhailenko D.A., Nyamweru B.</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/578">https://re.eltech.ru/jour/article/view/578</self-uri><abstract><sec><title>Введение</title><p>Введение. В предыдущих публикациях авторами рассматривались частотные характеристики и способы закрепления чувствительных элементов в виде волнового кольцевого резонатора на поверхностных акустических волнах в корпусе из различных материалов, а также влияние внешних факторов на чувствительные элементы. При анализе полученных результатов было замечено, что полоса пропускания достаточно широкая, что может отрицательно сказаться на детектировании сигнала при измерении ускорения с помощью разрабатываемого чувствительного элемента. Возникла необходимость уменьшить полосу пропускания чувствительного элемента за счет изменения конструкции встречноштыревого преобразователя (ВШП). Используя компьютерное моделирование COMSOL Multiphysics, было продемонстрировано несколько вариантов ВШП и показано, что эта цель может быть достигнута изменением геометрии штыря ВШП.</p></sec><sec><title>Цель работы</title><p>Цель работы. Продемонстрировать оптимальную топологию ВШП с малой полосой пропускания, что влечет за собой улучшение детектирования сигнала при влиянии ускорения на чувствительный элемент.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Применение метода конечных элементов и математическая обработка в AutoCAD и COMSOL Multiphysics.</p></sec><sec><title>Результаты</title><p>Результаты. Предложено 9 типов топологий встречно-штыревых преобразователей. Проведены исследования при помощи программного обеспечения COMSOL Multiphysics вышеуказанных типов ВШП на подложках из ниобата лития, выступающего в качестве материала чувствительного элемента, и представлены частотные характеристики. Проведена оценка полученных данных и сделаны выводы об оптимальной конструкции кольцевого резонатора: наиболее эффективной структурой является ВШП с прямоугольными штырями без селективного изъятия.</p></sec><sec><title>Заключение</title><p>Заключение. Генерация волны в кольцевом резонаторе может быть выполнена при изъятии не более одной пары ВШП на 10 и более периодов. При этом изъятие ВШП должно быть равномерным. При увеличении количества изъятых ВШП нарушается геометрия кольцевого резонатора и волна покидает конструкцию. Наличие общей шины позволяет удерживать поверхностную акустическую волну внутри конструкции ВШП, а сужение периодов к внутренней части конструкции позволяет улучшить частотные характеристики кольцевого резонатора на поверхностных акустических волнах.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Previous works considered the frequency characteristics and methods for fixing sensitive elements in the form of a wave ring resonator on surface acoustic waves in a housing made of various materials, as well as the influence of external factors on sensitive elements. It was found that the passband in such a case is sufficiently wide, which can affect adversely signal detection when measuring acceleration using the sensitive element under development. Therefore, it has become relevant to reduce the sensitive element’s bandwidth by changing the design of the interdigitated transducer (IDT).</p></sec><sec><title>Aim</title><p>Aim. To demonstrate an optimal topology for an IDT with a low bandwidth, leading to improved signal detection when acceleration affects the sensitive element.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The finite element method and mathematical processing in AutoCAD and in COMSOL Multiphysics.</p></sec><sec><title>Results</title><p>Results. Nine topologies of IDT are proposed. All these types were investigated using the COMSOL Multiphysics software on lithium niobate substrates, which material acts as a sensitive element. The frequency characteristics are presented. The data obtained allowed an optimal design of the ring resonator to be proposed: an IDT with rectangular pins without selective withdrawal.</p></sec><sec><title>Conclusion</title><p>Conclusion. Self-generation in a ring resonator can be performed by withdrawing no more than one pair of IDTs for 10 or more periods. In this case, the withdrawal of IDTs should be uniform. With an increase in the number of IDT withdrawals, the geometry of the ring resonator is violated, and the wave leaves the structure. The presence of a shared bus keeps the surface acoustic wave inside the IDT structure, and the narrowing of the periods towards the inner part of the structure makes it possible to improve the frequency characteristics of the ring resonator on surface acoustic waves.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>микроэлектромеханические системы</kwd><kwd>микромеханический акселерометр</kwd><kwd>чувствительный элемент</kwd><kwd>поверхностные акустические волны</kwd><kwd>встречно-штыревой преобразователь</kwd><kwd>анизотропные материалы</kwd><kwd>изотропные материалы</kwd><kwd>топология</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microelectromechanical systems</kwd><kwd>micromechanical accelerometer</kwd><kwd>sensitive element</kwd><kwd>surface acoustic waves</kwd><kwd>interdigitated transducer</kwd><kwd>anisotropic material</kwd><kwd>isotropic material</kwd><kwd>topology</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Комитета по науке и высшей школе Санкт-Петербурга в рамках гранта в форме субсидий в сфере научной и научно-технической деятельности.</funding-statement><funding-statement xml:lang="en">This research was funded by the Committee for Science and Higher Education of St. Peters-burg within the framework of a grant in the form of subsidies in the field of scientific and scientific-technical activities.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Design and analysis of a capacitive MEMS accelerometer as a wearable sensor in identifying low-frequency vibration profiles / M. 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