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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-152</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>Сравнение методов электрической перестройки антенн для сотовых телефонов</article-title><trans-title-group xml:lang="en"><trans-title>Comparison of Antennas Electrical Tuning Methods for Mobile Applications</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>Григорьев</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoriev</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры радиотех­ нической электроники</p></bio><bio xml:lang="en"><p>D.Sc. in engineering, Professor of the department of Radio Engineering Electronics</p></bio><email xlink:type="simple">adgrigoriev@eltech.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>Джалилов</surname><given-names>Б. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Djalilov</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистр по направлению "Электроника и микроэлектроника", аспирант кафедры радиотехнической электроники</p></bio><bio xml:lang="en"><p>Master’s Degree in electronics and microelectronics, the post-graduate student of the department of Radio Engineering Electronics</p></bio><email xlink:type="simple">bahrom3909@mail.ru</email><xref ref-type="aff" rid="aff-1"/></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 "LETI"</institution><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>02</month><year>2017</year></pub-date><volume>0</volume><issue>1</issue><fpage>35</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Григорьев А.Д., Джалилов Б.О., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Григорьев А.Д., Джалилов Б.О.</copyright-holder><copyright-holder xml:lang="en">Grigoriev A.D., Djalilov 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/152">https://re.eltech.ru/jour/article/view/152</self-uri><abstract><p>Описаны методы электрической перестройки рабочего диапазона частот антенны для мобильных телефонов, работающих в нескольких диапазонах частот LTE. Предложена антенна типа PIFA, содержащая высокочастотные и низкочастотные ветви. Элементы перестройки частоты подключены к низкочастотной ветви. Предложенная антенна работает на одной из четырех низкочастотных полос в зависимости от состояния переключающего элемента, сохраняя при этом настройку в диапазоне высоких частот. В качестве переключателя использованы переменный цифровой конденсатор, варактор и p-i-n-диод. Сравнение результатов моделирования показало, что диод обеспечивает наилучшую производительность, имея КПД 36…60 % в низкочастотных диапазонах и 78 % в высокочастотном диапазоне. Компьютерное моделирование антенны проведено с помощью программы RFS.</p></abstract><trans-abstract xml:lang="en"><p>The various methods of antenna electrical tuning for mobile handsets working in several LTE frequency bands are described. The PIFA-type antenna containing high and low frequency branches is proposed. A tuning element is connected to the low-frequency branch. The proposed antenna operates at one of four low-frequency bands depending on the tuning element switching states, keeping tuning to the high-frequency band. A digitally tunable capacitor, a varactor and a p-i-n-diode are used as a tuning element. Comparison of simulation results demonstrates that the p-i-n diode provides the best performance showing antenna radiation efficiency 36…60 % in the low frequency bands and 78 % in the high frequency band. The antenna simulation is performed by RFS computer code.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Антенна</kwd><kwd>переменный конденсатор</kwd><kwd>варактор</kwd><kwd>компьютерное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>p-i-n-диод</kwd><kwd>Antenna</kwd><kwd>Variable Capacitor</kwd><kwd>Varactor</kwd><kwd>p-i-n-Diode</kwd><kwd>Computer Simulation</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">Frequency Tunable Microstrip Patch Antenna Using RF MEMS Technology / E. Erdil, K. Topalli, M. Unlu, O. A. Civi, T. Akin // IEEE Trans. on Ant. and Prop. 2007. Vol. 55, iss. 4. P. 1193-1196.</mixed-citation><mixed-citation xml:lang="en">Erdil E., Topalli K., Unlu M., Civi O. A., Akin T. Frequency Tunable Microstrip Patch Antenna Using RF MEMS Technology. IEEE Trans. on Ant. and Prop. 2007, vol. 55, no. 4, pp. 1193-1196.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Multiband Frequency Reconfigurable 4G Handset Antenna with MIMO Capability / J. Ilvonen, R. Valkonen, J. Holopainen, V. Viikari // Progress In Electromagnetics Research. 2014. Vol. 148. P. 233-243.</mixed-citation><mixed-citation xml:lang="en">Ilvonen J., Valkonen R., Holopainen J., Viikari V. Multiband Frequency Reconfigurable 4G Handset Antenna with MIMO Capability. Progress In Electromagnetics Research. 2014, vol. 148, pp. 233-243.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">A Reconfigurable PIFA Using a Switchable PIN-Diode and Fine-Tuning Varactor for USPCS/WCDMS/m-WiMAX/ WLAN / J. H. Lim, G. T. Black, Y. I. Ko, C. W. Song, T. Y. Yun // IEEE Trans. on Ant. and Prop. 2010. Vol. 58, iss. 7. P. 2404-2411.</mixed-citation><mixed-citation xml:lang="en">Lim J. H., Black G. T., Ko Y. I., Song C. W., Yun T. Y. A Reconfigurable PIFA Using a Switchable PIN-Diode and Fine-Tuning Varactor for USPCS/WCDMS/m-WiMAX/ WLAN. IEEE Trans. on Ant. and Prop. 2010, vol. 58, no. 7, pp. 2404-2411. Received November, 8, 2016</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">URL: http://www.psemi.com/products/digitally-tunable-capacitors-dtc (дата обращения: 15.01.2017).</mixed-citation><mixed-citation xml:lang="en">Available at: http://www.psemi.com/products/digitally-tunable-capacitors-dtc (accessed 15 January 2017).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">URL: http://www.skyworksinc.com/Product/571/ SMV2022-004LF (дата обращения: 15.01.2017).</mixed-citation><mixed-citation xml:lang="en">Available at: http://www.skyworksinc.com/Product /571/SMV2022-004LF (accessed 15 January 2017).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">URL: http://www.avagotech.com/docs/AV02-1395EN (дата обращения: 15.01.2017).</mixed-citation><mixed-citation xml:lang="en">Available at: http://www.avagotech.com/docs/AV02- 1395EN (accessed 15 January 2017).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Григорьев А. Д., Салимов Р. В., Тихонов Р. И. Моделирование антенн сотовых телефонов методом векторных конечных элементов // Радиотехника и электроника. 2012. Т. 57, вып. 3. С. 261-270</mixed-citation><mixed-citation xml:lang="en">Grigoriev A. D., Salimov R. V., Tikhonov R. I. Simulation cell phone antennas by vector finite element. Radioteknika i elektronika. 2012, vol. 57, no. 3, pp. 261-270. (In Russian)</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
