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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">26799</article-id>
   <article-id pub-id-type="doi">10.12737/szf-52201907</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>14-я Китайскo-Российская конференция по космической погоде. Хайкоу, Китай, 5–9 ноября 2018 г.</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>14th China-Russia Space Weather Workshop. November 5–9, 2018, Haikou, China</subject>
    </subj-group>
    <subj-group>
     <subject>14-я Китайскo-Российская конференция по космической погоде. Хайкоу, Китай, 5–9 ноября 2018 г.</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Comparing simulated results of folded and unfolded log-periodic antenna used for observing the Sun</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Сравнение результатов моделирования сложенной и развернутой логопериодической антенны, используемой для наблюдений Солнца</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ша</surname>
       <given-names>Ли </given-names>
      </name>
      <name xml:lang="en">
       <surname>Sha</surname>
       <given-names>Li </given-names>
      </name>
     </name-alternatives>
     <email>lisha1400@bao.ac.cn</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ихуа</surname>
       <given-names>Янь </given-names>
      </name>
      <name xml:lang="en">
       <surname>Yihua</surname>
       <given-names>Yan </given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Чжицзюнь</surname>
       <given-names>Чень </given-names>
      </name>
      <name xml:lang="en">
       <surname>Zhijun</surname>
       <given-names>Chen </given-names>
      </name>
     </name-alternatives>
     <email>zjchen@bao.ac.cn</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Вэй</surname>
       <given-names>Ван </given-names>
      </name>
      <name xml:lang="en">
       <surname>Wei</surname>
       <given-names>Wang </given-names>
      </name>
     </name-alternatives>
     <email>wwang@nao.cas.cn</email>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Национальные астрономические обсерватории Китая</institution>
     <city>Пекин</city>
     <country>Китайская Народная Республика</country>
    </aff>
    <aff>
     <institution xml:lang="en">National Astronomical Observatories of Chinese Academy of Sciences</institution>
     <city>Beijing</city>
     <country>China</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Главная лаборатория исследования солнечной активности, Национальные астрономические обсерватории, Академия наук КНР</institution>
     <city>Пекин</city>
     <country>Китайская Народная Республика</country>
    </aff>
    <aff>
     <institution xml:lang="en">Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences</institution>
     <city>Beijing</city>
     <country>China</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Университет Китайской академии наук</institution>
     <city>Пекин</city>
     <country>Китайская Народная Республика</country>
    </aff>
    <aff>
     <institution xml:lang="en">University of Chinese Academy of Sciences</institution>
     <city>Beijing</city>
     <country>China</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Национальные астрономические обсерватории Китая</institution>
     <city>Пекин</city>
     <country>Китайская Народная Республика</country>
    </aff>
    <aff>
     <institution xml:lang="en">National Astronomical Observatories of Chinese Academy of Sciences</institution>
     <city>Beijing</city>
     <country>China</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Национальные астрономические обсерватории Китая</institution>
     <city>Пекин</city>
     <country>Китайская Народная Республика</country>
    </aff>
    <aff>
     <institution xml:lang="en">National Astronomical Observatories of Chinese Academy of Sciences</institution>
     <city>Beijing</city>
     <country>China</country>
    </aff>
   </aff-alternatives>
   <volume>5</volume>
   <issue>2</issue>
   <fpage>49</fpage>
   <lpage>54</lpage>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/26799/view">https://naukaru.ru/en/nauka/article/26799/view</self-uri>
   <abstract xml:lang="ru">
    <p>В спектральном радиогелиографе Минганту (MUSER) есть две антенные решетки. MUSER-I и MUSER-II охватывают диапазон частот от 0.4 до 2 ГГц и от 2 до 15 ГГц соответственно. В ближайшие годы будет создана третья антенная решетка, охватывающая частотный диапазон 30–240 МГц. Логпериодическая антенна является одним из вариантов для низкочастотного диапазона MUSER, она излучает структуры, которые способны поддержи-вать последовательные импедансные характеристики в широкой полосе пропускания. Благодаря высокому коэффициенту усиления, она широко используется во многих широкополосных приложениях. В этой программе сложенные и развернутые логпериоди-ческие антенны моделируются для проекта “Meridian”. Для того чтобы уменьшить потери на отражение, эта антенна оптимизирована с учетом ширины каждого полюса и высоты опоры. Этот оптимизированный процесс был реализован в смоделированном программном обеспечении HFSS.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>There are two antenna arrays located in Mingantu Spectral Radio Heliograph (MUSER). MUSER-I and MUSER-II cover the frequency band ranging from 0.4 to 2 GHz and from 2 to 15 GHz respectively. A third antenna array covering 30–240 MHz will be established in the coming years. A log-periodic antenna is one of the choices for MUSER low frequency band; it radiates structures capable of maintaining consistent impedance characteristics over a wide bandwidth. Due to the ability of achieving high gain, it is widely used in many broadband applications. In this program, folded and unfolded log-periodic antennas are simulated for the Meridian project. In order to improve its return loss, this antenna is optimized with the width of each pole and the height of the substrate. This optimized process has been implemented in the simulated software HFSS.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>антенная решетка</kwd>
    <kwd>фидерное возбуждение</kwd>
    <kwd>логпериодическая антенна</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>array</kwd>
    <kwd>feed</kwd>
    <kwd>log-periodic antenna</kwd>
   </kwd-group>
  </article-meta>
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