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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">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2022-20-7-56-64</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-3502</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>ЭЛЕКТРОНИКА, РАДИОФИЗИКА, РАДИОТЕХНИКА, ИНФОРМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, RADIOPHYSICS, RADIOENGINEERING, INFORMATICS</subject></subj-group></article-categories><title-group><article-title>Влияние пространственной избирательности излучения базовых станций мобильной связи на уровень создаваемого ими электромагнитного фона</article-title><trans-title-group xml:lang="en"><trans-title>Influence of Spatial Selectivity of Radiation of Mobile Communication Base Stations on the Level of Electromagnetic Background Introduced by them</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>Мордачев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mordachev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мордачев Владимир Иванович, к.т.н., доцент, ведущий научный сотрудник </p><p> 220013, Республика Беларусь, г. Минск, ул. П. Бровки, 6Тел. +375 17 293-84-38 </p></bio><bio xml:lang="en"><p>Mordachev Vladimir Ivanovich, Cand. of Sci., Associate Professor, Leading Researcher </p><p>220013, Republic of Belarus, Minsk, P. Brovka St., 6</p><p> Tel. +375 17 293-84-38 </p></bio><email xlink:type="simple">mordachev@bsuir.by</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>Ционенко</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsyanenka</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Ционенко Д. А., к.ф.-м.н., доцент, старший научный сотрудник </p><p>220013, Республика Беларусь, г. Минск, ул. П. Бровки, 6</p></bio><bio xml:lang="en"><p>Tsyanenka D. A., Cand. of Sci., Associate Professor, Chief Researcher </p><p>220013, Republic of Belarus, Minsk, P. Brovka St., 6</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2022</year></pub-date><volume>20</volume><issue>7</issue><fpage>56</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мордачев В.И., Ционенко Д.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Мордачев В.И., Ционенко Д.А.</copyright-holder><copyright-holder xml:lang="en">Mordachev V.I., Tsyanenka D.A.</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://doklady.bsuir.by/jour/article/view/3502">https://doklady.bsuir.by/jour/article/view/3502</self-uri><abstract><p>Радиочастотное электромагнитное излучение базовых станций является основным источником электромагнитного фона, создаваемого системами мобильной (сотовой) связи на селитебной территории; его интенсивность вносит существенный вклад в уровень электромагнитного загрязнения среды обитания и определяет степень электромагнитной безопасности населения. Предложенная ранее методика оценки средней интенсивности этого фона, основанная на анализе территориальной интенсивности мобильного трафика, учитывает пространственную избирательность излучений базовых станций в упрощенной форме путем введения параметра направленности излучения U, обратного числу секторов обслуживания базовой станции, в предположении равенства ширины главного лепестка диаграммы направленности излучения ширине этого сектора и без учета направленности излучения в вертикальной плоскости, что определяет пессимистический характер этих оценок. Выполнен уточненный анализ значений параметра U для двухуровневой модели диаграмм направленности антенн, отражающей реальные значения ширины их главного лепестка в горизонтальной и вертикальной плоскостях, относительные уровни боковых лепестков и соотношение мощностей излучений по главному и боковым лепесткам. Анализ проведен как для стационарных секторных антенн систем сотовой связи, так и для адаптивных активных фазированных антенных решеток 4G/5G, способных обеспечивать обслуживание с использованием узких лучей. Установлено, что значение параметра U секторных антенн на 5–15 дБ меньше величины, обратной числу секторов базовой станции, а для узких лучей адаптивных антенных решеток это различие достигает 20 дБ. При углах наклона главных лепестков по отношению к горизонту менее 30° при оценке средней интенсивности электромагнитного фона в качестве параметра U пространственной избирательности (направленности) излучений базовых станций может быть использовано значение, обратное коэффициенту усиления антенны в главном лепестке.</p></abstract><trans-abstract xml:lang="en"><p>Radio frequency electromagnetic radiation from base stations is the main source of electromagnetic background generated by mobile (cellular) communication systems in residential areas; its intensity makes a significant contribution to the level of electromagnetic pollution of the habitat and determines the level of electromagnetic safety of the population. The previously proposed technique for estimating the average intensity of this background, based on the analysis of the territorial intensity of mobile traffic, takes into account the spatial selectivity of base station radiation in a simplified form by introducing the radiation directivity parameter U, equal to the inverse of the number of base station service sectors, assuming that the width of the main lobe of the radiation pattern is equal to the width of this sector and without taking into account the radiation directivity in the vertical plane, which determines the pessimistic nature of these estimates. The paper presents a refined analysis of the values of the parameter U for a two-level models of antenna radiation patterns, which reflects the real values of the width of their main lobes in horizontal and vertical planes, the relative levels of side lobes and the ratio of radiation power of the main and side lobes. The analysis was performed both for stationary sector antennas of cellular communication systems and for adaptive phased antenna arrays of 4G/5G systems capable of providing service using narrow beams. The analysis showed that the value of the U parameter of sector antennas is 5–15 dB less than the inverse of the number of sectors of base stations, and for narrow beams of adaptive antenna arrays, this difference reaches 20 dB. If tilt angles of main lobes of antenna radiation patterns with respect to the horizon are less than 30°, then at estimation of the average electromagnetic background intensity the inverse of their antenna gain in the main lobe can be used as the U parameter value of the spatial selectivity (directivity) of base stations radiations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мобильная связь</kwd><kwd>базовая станция</kwd><kwd>электромагнитное излучение</kwd><kwd>пространственная избирательность</kwd><kwd>антенна</kwd><kwd>диаграмма направленности</kwd><kwd>главный лепесток</kwd><kwd>боковые лепестки</kwd><kwd>азимут</kwd><kwd>угол визирования</kwd><kwd>электромагнитный фон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mobile communications</kwd><kwd>base station</kwd><kwd>electromagnetic radiation</kwd><kwd>spatial selectivity</kwd><kwd>antenna</kwd><kwd>pattern</kwd><kwd>main lobe</kwd><kwd>side lobes</kwd><kwd>azimuth</kwd><kwd>viewing angle</kwd><kwd>electromagnetic background</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">Mordachev V. 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