<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2023-1-44-48</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1489</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>ЭЛЕКТРОМАГНИТНЫЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTROMAGNETIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Дифференциальный метод определения удельного коэффициента поглощения электромагнитной энергии жидкого фантома</article-title><trans-title-group xml:lang="en"><trans-title>Differential method for determining the specific absorption rate coefficient  of electromagnetic energy for a liquid phantom</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4997-3327</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рано</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Rano</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Динеш Рано</p><p>Москва</p><p>Delhi, India</p></bio><bio xml:lang="en"><p>Dinesh Rano</p><p>Moscow</p><p>Delhi, India</p></bio><email xlink:type="simple">dineshr@iiitd.ac.in</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1115-7700</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Елизаров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yelizarov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Альбертович Елизаров</p><p>Москва</p></bio><bio xml:lang="en"><p>Andrey A. Yelizarov</p><p>Moscow</p></bio><email xlink:type="simple">a.yelizarov@hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8869-1920</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назаров</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Васильевич Назаров</p><p>Москва</p></bio><bio xml:lang="en"><p>Igor V. Nazarov</p><p>Moscow</p></bio><email xlink:type="simple">inazarov@hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4025-3507</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скуридин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skuridin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Андреевич Скуридин</p><p>Москва</p></bio><bio xml:lang="en"><p>Andrey A. Skuridin</p><p>Moscow</p></bio><email xlink:type="simple">askuridin@hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0620-2271</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Закирова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakirova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эльмира Алексеевна Закирова</p><p>Москва</p></bio><bio xml:lang="en"><p>Elmira A. Zakirova</p><p>Moscow</p></bio><email xlink:type="simple">ezakirova@hse.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Высшая школа экономики»; Indraprastha Institute of Information Technology (IIITD)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University Higher School of Economics; Indraprastha Institute of Information Technology (IIITD)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Высшая школа экономики»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University Higher School of Economics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>03</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>44</fpage><lpage>48</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1489">https://www.izmt.ru/jour/article/view/1489</self-uri><abstract><p>Рассмотрены методы измерения параметров электромагнитного излучения, определяющих поглощаемую телом человека долю электромагнитной энергии при использовании малогабаритных носимых и нательных электронных устройств. Один из важнейших рассматриваемых параметров – удельный коэффициент поглощения электромагнитной энергии. Предложен метод определения удельного коэффициента поглощения электромагнитной энергии для жидкого фантома. Метод исследован с помощью компьютерного моделирования и экспериментального измерения параметров микрополосковой патч-антенны, расположенной на эллиптическом цилиндре и работающей в системе беспроводной медицинской нательной компьютерной сети.  Суть метода заключается в измерении повышения температуры жидкости фантома, подвергшегося воздействию электромагнитных волн, создаваемых микрополосковой патч-антенной за заданное время. Однородный (гомогенный) жидкий фантом создан в результате изменения процентного содержания соли и сахара в 250 г воды, кожный фантом – процентного содержания воды в 200 г глицерина. Предложенный метод измерения удельного коэффициента поглощения электромагнитной энергии позволяет исключить необходимость приобретения дорогостоящего комплекта диэлектрических зондов, что демонстрирует экономическую эффективность рассмотренного метода. Результаты экспериментальных измерений соответствуют результатам компьютерного моделирования.</p></abstract><trans-abstract xml:lang="en"><p>The wide use of small-sized wearable electronic devices in various practical human activities makes it relevant to measure the proportion of electromagnetic energy absorbed by the human body. One of the most important parameters that determines it is the specific absorption rate. In this article we propose a method for determining this coefficient for a liquid phantom, with the use of computer simulation and experimental measurement of the microstrip patch antenna parameters.</p><p>The antenna is located on an elliptical cylinder and operates in the medical body area network. The method is based on measuring the rise in temperature of the liquid phantom exposed to electromagnetic waves generated by a microstrip antenna over a given time. Homogeneous liquid phantom was created by changing the percentage of salt and sugar in 250 g of water, skin phantom – by changing the percentage of water in 200 g of glycerol. The proposed specific absorption rate measurement method eliminates the need to purchase an expensive set of dielectric probes, which demonstrates its cost-effectiveness. The obtained results of experimental measurements are in good agreement with the results of the performed computer simulation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>удельный коэффициент поглощения</kwd><kwd>электромагнитная энергия</kwd><kwd>коэффициент затухания</kwd><kwd>электрическая проводимость</kwd><kwd>относительная диэлектрическая проницаемость</kwd><kwd>жидкий фантом</kwd><kwd>медицинская нательная компьютерная сеть</kwd><kwd>микрополосковая патч-антенна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>specific absorption rate (SAR)</kwd><kwd>electromagnetic energy</kwd><kwd>attenuation coefficient</kwd><kwd>electrical conductivity</kwd><kwd>relative permittivity</kwd><kwd>liquid phantom</kwd><kwd>medical body area network (MBAN)</kwd><kwd>microstrip patch antenna (MPA)</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено в рамках Программы фундаментальных исследований НИУ «ВШЭ» в 2022 году.</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">Kumar V., Gupta B. Wireless Personal Communications. 2017, vol. 97, pp. 5865–5895. https://doi.org/10.1007/s11277-017-4815-x</mixed-citation><mixed-citation xml:lang="en">Kumar V., Gupta B. Wireless Personal Communications. 2017, vol. 97, pp. 5865–5895. https://doi.org/10.1007/s11277-017-4815-x</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Самойлов В. О., Владимиров В. Г., Шарова Л. А. Радиобиология неионизирующих и ионизирующих излучений: учебное пособие. СПб.: Изд-во Политехнического ун-та, 2011. 207 c.</mixed-citation><mixed-citation xml:lang="en">Самойлов В. О., Владимиров В. Г., Шарова Л. А. Радиобиология неионизирующих и ионизирующих излучений: учебное пособие. СПб.: Изд-во Политехнического ун-та, 2011. 207 c. [Samoilov V. O., Vladimirov V. G., Sharova L. A. Radiobiology of non-ionizing and ionizing radiation. St. Petersburg, Publ. House of the Polytechnic University, 2011, 207 p.]</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Кудряшов Ю. Б., Перов Ю. Ф., Рубин А. Б. Радиационная биофизика: радиочастотные и микроволновые электромагнитные излучения: учебник для вузов. М.: Физматлит, 2008. 184 с.</mixed-citation><mixed-citation xml:lang="en">Kudryashov Yu. B., Perov Yu. F., Rubin A. B. Radiation biophysics: radio frequency and microwave electromagnetic radiation: textbook for universities. Moscow, Fizmatlit Publ., 2008, 184 p.]</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Rano D., Hashmi M. IET Microwaves, Antennas and Propagation. 2019, vol. 13, no.7, pp. 1031–1040. https://doi.org/10.1049/iet-map.2018.6021</mixed-citation><mixed-citation xml:lang="en">Rano D., Hashmi M. IET Microwaves, Antennas and Propagation. 2019, vol. 13, no.7, pp. 1031–1040. https://doi.org/10.1049/iet-map.2018.6021</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Rano D., Hashmi M. S. 2016 Twenty Second National Conference on Communication (NCC). 2016, pp. 1–6. https://doi.org/10.1109/NCC.2016.7561201</mixed-citation><mixed-citation xml:lang="en">Rano D., Hashmi M. S. 2016 Twenty Second National Conference on Communication (NCC). 2016, pp. 1–6. https://doi.org/10.1109/NCC.2016.7561201</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Яргин С. В. О биологическом действии электромагнитного излучения радиочастотного диапазона // Сибирский научный медицинский журнал. 2019, 39(5). C. 52–61. https://doi.org/10.15372/SSMJ20190506</mixed-citation><mixed-citation xml:lang="en">Yargin S. V. On the biological effect of electromagnetic radiation in the radio frequency range, Siberian Scientific Medical Journal. 2019, 39(5), pp. 52–61. (In Russ.)] https://doi.org/10.15372/SSMJ20190506</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Яргин С. В. К вопросу о биологических эффектах электромагнитного излучения радиочастотного диапазона // Техника. Технологии. Инженерия. 2017. № 3(5). C. 14–19.</mixed-citation><mixed-citation xml:lang="en">Yargin S. V. On the issue of biological effects of electromagnetic radiation in the radio frequency range, Technique. Technology. Engineering. 2017, no. 3(5), pp. 14–19. (In Russ.)]</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Gao Y., Ghasr M. T., Nacy M., Zoughi R. In IEEE Transactions on Instrumentation and Measurement, Feb. 2019, vol. 68, no. 2, pp. 512–524. https://doi.org/10.1109/TIM.2018.2849519</mixed-citation><mixed-citation xml:lang="en">Gao Y., Ghasr M. T., Nacy M., Zoughi R. In IEEE Transactions on Instrumentation and Measurement, Feb. 2019, vol. 68, no. 2, pp. 512–524. https://doi.org/10.1109/TIM.2018.2849519</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Januszkiewicz Ł., Hausman S. 2015 9th European Conference on Antennas and Propagation (EuCAP). 2015, pp. 1–4.</mixed-citation><mixed-citation xml:lang="en">Januszkiewicz Ł., Hausman S. 2015 9th European Conference on Antennas and Propagation (EuCAP). 2015, pp. 1–4.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Kiminami K., Iyama T., Onishi T., Uebayashi S. In IEEE Transactions on Electromagnetic Compatibility. Nov. 2008, vol. 50, no. 4, pp. 828–836. https://doi.org/10.1109/TEMC.2008.2004608</mixed-citation><mixed-citation xml:lang="en">Kiminami K., Iyama T., Onishi T., Uebayashi S. In IEEE Transactions on Electromagnetic Compatibility. Nov. 2008, vol. 50, no. 4, pp. 828–836. https://doi.org/10.1109/TEMC.2008.2004608</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Okano Y., Sato T., Sugama Y. In IEEE Transactions on Instrumentation and Measurement. June 2010, vol. 59, no. 6, pp. 1705–1714. https://doi.org/10.1109/TIM.2009.2022449</mixed-citation><mixed-citation xml:lang="en">Okano Y., Sato T., Sugama Y. In IEEE Transactions on Instrumentation and Measurement. June 2010, vol. 59, no. 6, pp. 1705–1714. https://doi.org/10.1109/TIM.2009.2022449</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Okano Y., Shimoji H. In IEEE Transactions on Instrumentation and Measurement. Feb. 2012, vol. 61, no. 2, pp. 439–446. https://doi.org/10.1109/TIM.2010.2045939</mixed-citation><mixed-citation xml:lang="en">Okano Y., Shimoji H. In IEEE Transactions on Instrumentation and Measurement. Feb. 2012, vol. 61, no. 2, pp. 439–446. https://doi.org/10.1109/TIM.2010.2045939</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Okano Y., Ito K., Ida I., Takahashi M. In IEEE Transactions on Microwave Theory and Techniques. Nov. 2000, vol. 48, no. 11, pp. 2094–2103. https://doi.org/10.1109/22.884200</mixed-citation><mixed-citation xml:lang="en">Okano Y., Ito K., Ida I., Takahashi M. In IEEE Transactions on Microwave Theory and Techniques. Nov. 2000, vol. 48, no. 11, pp. 2094–2103. https://doi.org/10.1109/22.884200</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>
