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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">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2024-21-2-207-216</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-1267</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>ФИЗИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>КОМПЬЮТЕРНОЕ МОДЕЛИРОВАНИЕ АНТЕНН ДЛЯ МАЛЫХ КОСМИЧЕСКИХ АППАРАТОВ</article-title><trans-title-group xml:lang="en"><trans-title>COMPUTER MODELING OF ANTENNAS FOR SMALL SPACECRAFTS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2250-4763</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мейрамбекұлы</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Meirambekuly</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>050040, Almaty</p></bio><email xlink:type="simple">nurs.kaznu@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-2422-0695</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бағдатұлы</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bagdatuly</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>student</p><p>050040, Almaty</p></bio><email xlink:type="simple">berikbagdatuly@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/0009-0009-6032-5214</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Төлеген</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tolegen</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистрант</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>master’s student</p><p>050040, Almaty</p></bio><email xlink:type="simple">a.tolegen801@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4783-0979</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Қадырхан</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kadyrkhan</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистрант</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>master’s student</p><p>050040, Almaty</p></bio><email xlink:type="simple">dikadyrkhan@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-4854-4882</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рахметбаева</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rakhmetbayeva</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистрант</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>master’s student</p><p>050040, Almaty</p></bio><email xlink:type="simple">aydana_ret03@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/0009-0007-9104-0313</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асқарбеков</surname><given-names>И.</given-names></name><name name-style="western" xml:lang="en"><surname>Askarbekov</surname><given-names>I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>student</p><p>050040, Almaty</p></bio><email xlink:type="simple">I.askarbekov@bk.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/0009-0008-8785-9171</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Героева</surname><given-names>Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Geroyeva</surname><given-names>Zn.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>student</p><p>050040, Almaty</p></bio><email xlink:type="simple">geroevazh@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-0278-3752</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Серік</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Serik</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p><p>050040, г. Алматы</p></bio><bio xml:lang="en"><p>student</p><p>050040, Almaty</p></bio><email xlink:type="simple">azat.serik.2003@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Казахский национальный университет им. аль-Фараби<country>Казахстан</country></aff><aff xml:lang="en">Al-Farabi Kazakh National University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2024</year></pub-date><volume>21</volume><issue>2</issue><fpage>207</fpage><lpage>216</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мейрамбекұлы Н., Бағдатұлы Б., Төлеген А., Қадырхан Д., Рахметбаева А., Асқарбеков И., Героева Ж., Серік А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мейрамбекұлы Н., Бағдатұлы Б., Төлеген А., Қадырхан Д., Рахметбаева А., Асқарбеков И., Героева Ж., Серік А.</copyright-holder><copyright-holder xml:lang="en">Meirambekuly N., Bagdatuly B., Tolegen A., Kadyrkhan D., Rakhmetbayeva A., Askarbekov I., Geroyeva Z., Serik 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://vestnik.kbtu.edu.kz/jour/article/view/1267">https://vestnik.kbtu.edu.kz/jour/article/view/1267</self-uri><abstract><p>Антенные системы, используемые в малых космических аппаратах, являются очень важным элементом космического аппарата. Ограниченность размеров и особенности работы данных аппаратов вносят коррективы в процессы разработки подсистем для них. В данной работе будут смоделированы и исследованы проволочная и микрополосковые антенны для малых космических аппаратов. Программной средой для моделирования выбрана CST Microwave Studio, позволяющая моделировать антенны и сверхвысокочастотные устройства максимально приближенными к реальности. В данной работе будут смоделированы проволочная дипольная антенна, работающая на частоте 433 МГц, и микрополосковая антенна, работающая на частоте 2200 МГц. Размеры антенны будут подобраны согласно расчетам, материалы будут выбраны максимально приближенными к имеющимся у авторов. Результаты исследования будут полезны для дальнейшего прототипирования и исследования данных антенн.</p></abstract><trans-abstract xml:lang="en"><p>Antenna systems used in small spacecraft are a very important element of the spacecraft. The limited size and operating features of these devices adjust the development processes of subsystems for them. In this work, wire and microstrip antennas for small spacecraft will be modeled and studied. The software environment chosen for modeling was CST Microwave Studio, which allows modeling antennas and ultra-high-frequency devices as close to reality as possible. In this work, a wire dipole antenna operating at a frequency of 433 MHz and a microstrip antenna operating at a frequency of 2200 MHz will be simulated. The dimensions of the antenna will be selected according to calculations, materials will be selected as close as possible to those available to the authors. The results of the study will be useful for further prototyping and research of these antennas.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>антенна</kwd><kwd>CubeSat</kwd><kwd>моделирование</kwd><kwd>диполь</kwd><kwd>микрополосковая антенна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>antenna</kwd><kwd>CubeSat</kwd><kwd>modeling</kwd><kwd>dipole</kwd><kwd>microstrip antenna</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">Севастьянов Н.Н., Бранец В.Н., Панченко В.А., Казинский Н.В., Кондранин Т.В., Негодяев С.С. Анализ современных возможностей создания малых космических аппаратов для дистанционного зондирования Земли // Труды МФТИ. – 2009. – № 3. https://cyberleninka.ru/article/n/analiz-sovremennyh-vozmozhnostey-sozdaniya-malyh-kosmicheskih-apparatov-dlya-distantsionnogo-zondirovaniya-zemli (дата обращения: 16.02.2024).</mixed-citation><mixed-citation xml:lang="en">Sevast'janov N.N., Branec V.N., Panchenko V.A., Kazinskij N.V., Kondranin T.V., Negodjaev S.S. (2009) Analiz sovremennyh vozmozhnostej sozdanija malyh kosmicheskih apparatov dlja distancionnogo zondirovanija Zemli. Trudy MFTI, no. 3. URL: https://cyberleninka.ru/article/n/analiz-sovremennyh-vozmozhnostey-sozdaniya-malyh-kosmicheskih-apparatov-dlya-distantsionnogo-zondirovaniya-zemli (data obrashhenija: 16.02.2024).[in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Leao T.F.C., Mooney-Chopin V., Trueman C.W. and S. Gleason. Design and implementation of a diplexer and a dual-band VHF/UHF antenna for nanosatellites // IEEE Antennas Wireless Propag. Lett. – 2013. – Vol. 12. – P. 1098–1101.</mixed-citation><mixed-citation xml:lang="en">Leao T.F.C., Mooney-Chopin V., Trueman C.W. and S. Gleason. Design and implementation of a diplexer and a dual-band VHF/UHF antenna for nanosatellites // IEEE Antennas Wireless Propag. Lett. – 2013. – Vol. 12. – P. 1098–1101.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Rahmat-Samii Y., Manohar V. and Kovitz J.M. For satellites think small dream big: A review of recent antenna developments for CubeSats // IEEE Antennas Propag. Mag. – 2017. – Vol. 59. – No. 2. – P. 22–30.</mixed-citation><mixed-citation xml:lang="en">Rahmat-Samii Y., Manohar V. and Kovitz J.M. For satellites think small dream big: A review of recent antenna developments for CubeSats // IEEE Antennas Propag. Mag. – 2017. – Vol. 59. – No. 2. – P. 22–30.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Abdullah H.H., Elboushi A., Gohar A.E. and Abdallah E.A. An improved S-band CubeSat communication subsystem design and implementation // IEEE Access. – 2021. – Vol. 9. – P. 45123–45136.</mixed-citation><mixed-citation xml:lang="en">Abdullah H.H., Elboushi A., Gohar A.E. and Abdallah E.A. An improved S-band CubeSat communication subsystem design and implementation // IEEE Access. – 2021. – Vol. 9. – P. 45123–45136.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Veljovic M.J. and Skrivervik A.K. Aperture-coupled low-profile wideband patch antennas for CubeSat // IEEE Trans. Antennas Propag. – 2019. – Vol. 67. – No. 5. – P. 3439–3444.</mixed-citation><mixed-citation xml:lang="en">Veljovic M.J. and Skrivervik A.K. Aperture-coupled low-profile wideband patch antennas for CubeSat // IEEE Trans. Antennas Propag. – 2019. – Vol. 67. – No. 5. – P. 3439–3444.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Pittella E., Pisa S. and Nascetti A. Reconfigurable S-band patch antenna radiation patterns for satellite missions / Proc. 5th IEEE Int. Workshop Metrol. Aerosp. (MetroAeroSpace). – 2018. – P. 651–656.</mixed-citation><mixed-citation xml:lang="en">Pittella E., Pisa S. and Nascetti A. Reconfigurable S-band patch antenna radiation patterns for satellite missions / Proc. 5th IEEE Int. Workshop Metrol. Aerosp. (MetroAeroSpace). – 2018. – P. 651–656.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Johnson A.D., Manohar V., Venkatakrishnan S.B. and Volakis J.L. Low-cost S-band reconfigurable monopole/patch antenna for CubeSats // IEEE Open J. Antennas Propag. – 2020. – Vol. 1. – P. 598–603.</mixed-citation><mixed-citation xml:lang="en">Johnson A.D., Manohar V., Venkatakrishnan S.B. and Volakis J.L. Low-cost S-band reconfigurable monopole/patch antenna for CubeSats // IEEE Open J. Antennas Propag. – 2020. – Vol. 1. – P. 598–603.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Abulgasem S., Tubbal F., Raad R., Theoharis P.I., Lu S., Iranmanesh S. Antenna Designs for CubeSats: A Review. IEEE Access. – 2021. – 9,9380228. – P. 45289–45324.</mixed-citation><mixed-citation xml:lang="en">Abulgasem S., Tubbal F., Raad R., Theoharis P.I., Lu S., Iranmanesh S. Antenna Designs for CubeSats: A Review. IEEE Access. – 2021. – 9,9380228. – P. 45289–45324.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Rahmat-Samii Y., Manohar V., Kovitz J.M. For Satellites, Think Small, Dream Big: A review of recent antenna developments for CubeSats // IEEE Antennas and Propagation Magazine. – 2017. – No. 59(2),7862180. – P. 22–30.</mixed-citation><mixed-citation xml:lang="en">Rahmat-Samii Y., Manohar V., Kovitz J.M. For Satellites, Think Small, Dream Big: A review of recent antenna developments for CubeSats // IEEE Antennas and Propagation Magazine. – 2017. – No. 59(2),7862180. – P. 22–30.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Chahat N., Decrossas E., Gonzalez-Ovejero D., Yurduseven O., Radway M., Hodges R., Estabrook P., Baker J., Bell D., Cwik T., Chattopadhyay G. Advanced CubeSat Antennas for Deep Space and Earth Science Missions: A review // IEEE Antennas and Propagation Magazine. – 2019. – No. 61(5). – P. 37–46. https://doi.org/10.1109/MAP.2019.2932608.</mixed-citation><mixed-citation xml:lang="en">Chahat N., Decrossas E., Gonzalez-Ovejero D., Yurduseven O., Radway M., Hodges R., Estabrook P., Baker J., Bell D., Cwik T., Chattopadhyay G. Advanced CubeSat Antennas for Deep Space and Earth Science Missions: A review // IEEE Antennas and Propagation Magazine. – 2019. – No. 61(5). – P. 37–46. https://doi.org/10.1109/MAP.2019.2932608.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Decrossas E., Chahat N., Walkemeyer P.E., Velasco B.S. Deployable circularly polarized UHF printed loop antenna for mars cube one (MarCO) cubesat // IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 – Proceedings. 2019, 8888027. – P. 1719–1720.</mixed-citation><mixed-citation xml:lang="en">Decrossas E., Chahat N., Walkemeyer P.E., Velasco B.S. Deployable circularly polarized UHF printed loop antenna for mars cube one (MarCO) cubesat // IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 – Proceedings. 2019, 8888027. – P. 1719–1720.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Rahmat-Samii Y., Densmore A.C. Technology trends and challenges of antennas for satellite communication systems // IEEE Transactions on Antennas and Propagation. – 2015. – Vol. 63. – No.4. – P. 1191–1204. 6945379.</mixed-citation><mixed-citation xml:lang="en">Rahmat-Samii Y., Densmore A.C. Technology trends and challenges of antennas for satellite communication systems // IEEE Transactions on Antennas and Propagation. – 2015. – Vol. 63. – No.4. – P. 1191–1204. 6945379.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Costantine J., Tawk Y., Maqueda I., Sakovsky M., Olson G., Pellegrino S., Christodoulou C.G. UHF Deployable Helical Antennas for CubeSats // IEEE Transactions on Antennas and Propagation. – 2016. – No. 64(9). – P. 3752–3759. 7496961</mixed-citation><mixed-citation xml:lang="en">Costantine J., Tawk Y., Maqueda I., Sakovsky M., Olson G., Pellegrino S., Christodoulou C.G. UHF Deployable Helical Antennas for CubeSats // IEEE Transactions on Antennas and Propagation. – 2016. – No. 64(9). – P. 3752–3759. 7496961</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Costantine J., Tawk Y., Christodoulou C.G. Deployable antenna concepts for CubeSats. IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 – Proceedings. – 2016, 7696477. – P. 1541–1542.</mixed-citation><mixed-citation xml:lang="en">Costantine J., Tawk Y., Christodoulou C.G. Deployable antenna concepts for CubeSats. IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 – Proceedings. – 2016, 7696477. – P. 1541–1542.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Babuscia A. Inflatable antenna for cubesat: Design, fabrication, deployment and tests. 73rd Annual Conference of the Society of Allied Weight Engineers, Inc., SAWE 2014. – 2014.</mixed-citation><mixed-citation xml:lang="en">Babuscia A. Inflatable antenna for cubesat: Design, fabrication, deployment and tests. 73rd Annual Conference of the Society of Allied Weight Engineers, Inc., SAWE 2014. – 2014.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Johnson A.D., Manohar V., Venkatakrishnan S.B., Volakis J.L. Low-Cost S-Band Reconfigurable Monopole/Patch Antenna for CubeSats // IEEE Open Journal of Antennas and Propagation. – 2020. – No. 1. – P. 598–603.</mixed-citation><mixed-citation xml:lang="en">Johnson A.D., Manohar V., Venkatakrishnan S.B., Volakis J.L. Low-Cost S-Band Reconfigurable Monopole/Patch Antenna for CubeSats // IEEE Open Journal of Antennas and Propagation. – 2020. – No. 1. – P. 598–603.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Malallah R., Shaaban R.M., Al-Tumah W.A.G. A dual band star-shaped fractal slot antenna: Design and measurement // AEU – International Journal of Electronics and Communications. – 2020. – No. 127. – P. 153473.</mixed-citation><mixed-citation xml:lang="en">Malallah R., Shaaban R.M., Al-Tumah W.A.G. A dual band star-shaped fractal slot antenna: Design and measurement // AEU – International Journal of Electronics and Communications. – 2020. – No. 127. – P. 153473.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Tiwari D., Ansari J.A., Saroj A.K., Kumar M. Analysis of a Miniaturized Hexagonal Sierpinski Gasket fractal microstrip antenna for modern wireless communications // AEU – International Journal of Electronics and Communications. – 2020. –Vol. 123. – P. 153288.</mixed-citation><mixed-citation xml:lang="en">Tiwari D., Ansari J.A., Saroj A.K., Kumar M. Analysis of a Miniaturized Hexagonal Sierpinski Gasket fractal microstrip antenna for modern wireless communications // AEU – International Journal of Electronics and Communications. – 2020. –Vol. 123. – P. 153288.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Siddiqui M.G., Saroj A.K., Tiwari D., Sayeed S.S. Koch–Sierpinski Fractal Microstrip antenna for C/X/ Ku-band applications // Australian Journal of Electrical and Electronics Engineering. – 2019. – Vol. 16(4). – P. 369–377.</mixed-citation><mixed-citation xml:lang="en">Siddiqui M.G., Saroj A.K., Tiwari D., Sayeed S.S. Koch–Sierpinski Fractal Microstrip antenna for C/X/ Ku-band applications // Australian Journal of Electrical and Electronics Engineering. – 2019. – Vol. 16(4). – P. 369–377.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Awaludin A., Sumantyo J.T.S., Gao S., Santosa C.E., Baharuddin M.Z. Wideband circularly polarized triangular-ring slot antenna for GAIA-I microsatellite. 11th European Conference on Antennas and Propagation, EUCAP 2017. – 2017. 7928040. – P.2277–2280.</mixed-citation><mixed-citation xml:lang="en">Awaludin A., Sumantyo J.T.S., Gao S., Santosa C.E., Baharuddin M.Z. Wideband circularly polarized triangular-ring slot antenna for GAIA-I microsatellite. 11th European Conference on Antennas and Propagation, EUCAP 2017. – 2017. 7928040. – P.2277–2280.</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>
