Narrowband shielding against electromagnetic interference in LTE 4G systems using complementary frequency selective surfaces

da Silva B. S.; Campos A. L. P. S.; Gomes Neto A.

摘要

Abstract >This article presents the project and fabrication of an electromagnetic shielding using complementary frequency selective surfaces. The proposed structure acts as low pass filter in the bands 1.8–2.3 GHz and 2.86–3.47 GHz, with a narrowband null rejecting undesired frequencies, in this case, 4G band (2.50–2.69 GHz). The project begins by analyzing geometries very well known in the specific literature (cross‐dipole and square‐loop), separately, to determine the dimensions of these geometries efficiently. In addition, computational simulations of a new geometry are made, joining the initial geometries, to observe the behavior of the interaction between them. Therefore, the CFSS is proposed and studied to achieve the desired frequency response. By using the screen printing technique, the EMI shielding is fabricated. Finally, its frequency response is validated experimentally. A good agreement between measurement and simulation is demonstrated in this article, as well as the angular stability of the proposed structure. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en” <标题类型=“main”>抽象</ title> 本文介绍了使用互补频率选择性表面的电磁屏蔽的项目和制造。所提出的结构充当频段1.8-2.3 GHz和2.86-3.47 GHz中的低通滤波器，窄带空拒绝不希望的频率，在这种情况下，4G频段（2.50-2.69 GHz）。该项目通过分析特定文献（交叉偶极和方环）的几何形状分析，分别分析，以便有效地确定这些几何形状的尺寸。另外，制造新几何形状的计算模拟，加入初始几何形状，以观察它们之间的相互作用的行为。因此，提出并研究了CFS，以实现所需的频率响应。通过使用丝网印刷技术，制造EMI屏蔽。最后，它的频率响应是通过实验验证的。在本文中证明了测量和仿真之间的良好一致性，以及所提出的结构的角度稳定性。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-24977/'>《Microwave and optical technology letters》</a> <b style="margin: 0 2px;">|</b><span>2018年第9期</span><b style="margin: 0 2px;">|</b><span>共6页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=da Silva B. S.&option=202" target="_blank" rel="nofollow">da Silva B. S.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Campos A. L. P. S.&option=202" target="_blank" rel="nofollow">Campos A. L. P. S.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gomes Neto A.&option=202" target="_blank" rel="nofollow">Gomes Neto A.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Communication Engineering DepartmentFederal University of Rio Grande do Norte (UFRN) Av. Senador Salgado Filho 3000Natal RN CEP: 59072‐970 Brazil;</p> <p>Communication Engineering DepartmentFederal University of Rio Grande do Norte (UFRN) Av. Senador Salgado Filho 3000Natal RN CEP: 59072‐970 Brazil;</p> <p>Federal Institute of EducationScience and Technology of Paraíba (IFPB) Campus Jo?o Pessoa Av. 1 de maio 720 JaguaribeJo?o Pessoa PB CEP: 58015430 Brazil;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1165.html" title="光学">光学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=angular stability&option=203" rel="nofollow">angular stability;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=complementary frequency selective surface&option=203" rel="nofollow">complementary frequency selective surface;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=CFSS&option=203" rel="nofollow">CFSS;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=EMI Shielding&option=203" rel="nofollow">EMI Shielding;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=LTE 4G&option=203" rel="nofollow">LTE 4G;</a> </p> <div class="translation"> 机译：角度稳定性;互补频率选择性表面;CFSS;EMI屏蔽;LTE 4G; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704019950269.html">Narrowband shielding against electromagnetic interference in LTE 4G systems using complementary frequency selective surfaces</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=da Silva B. 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tuijian_authcolor">Hashemi Soheil,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Abdolali Ali&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Abdolali Ali </a> <a href="/journal-foreign-1535/" target="_blank" rel="nofollow" class="tuijian_authcolor">International Journal of Microwave and Wireless Technologies .</a> <span>2017</span><span>,第2期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于电磁卫生应用的带有频率选择表面的房间屏蔽</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_applied-computational-electromagnetics-society-journal_thesis/0204111635881.html">Electromagnetic Shielding of Resonant Frequency-Selective Surfaces in Presence of Dipole Sources</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lovat G.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Lovat G.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Araneo R.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Araneo R.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Celozzi S.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Celozzi S. </a> <a href="/journal-foreign-682/" target="_blank" rel="nofollow" class="tuijian_authcolor">Applied Computational Electromagnetics Society journal .</a> <span>2014</span><span>,第7期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：偶极子源下共振频率选择表面的电磁屏蔽</span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-conference-foreign_meeting--1_thesis/020516442567.html">Shielding strategies for interference mitigation in indoor wireless communications with frequency selective surfaces</a> <b>[C]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lee&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Lee,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=D.C.K.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">D.C.K.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sowerby&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sowerby,</a> <a href="/conference-foreign--1/" target="_blank" rel="nofollow" class="tuijian_authcolor"> .</a> <span>2005</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：具有频率选择表面的室内无线通信中的缓解干扰的屏蔽策略</span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-degree-foreign_mphd_thesis/02061561489.html">High frequency electromagnetic interference shielding magnetic polymer nanocomposites.</a> <b>[D] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=He, Qingliang.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">He, Qingliang. </a> <span>2015</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：高频电磁干扰屏蔽磁性聚合物纳米复合材料。</span> </p> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-journal-foreign-pmc_detail_thesis/040006274248.html">Polyethylene Composites with Segregated Carbon Nanotubes Network: Low Frequency Plasmons and High Electromagnetic Interference Shielding Efficiency</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ludmila Vovchenko&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ludmila Vovchenko,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ludmila Matzui&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ludmila Matzui,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Viktor Oliynyk&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Viktor Oliynyk,</a> <span>2020</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：具有隔离碳纳米管网络的聚乙烯复合材料：低频等离激元和高电磁干扰屏蔽效率</span> </p> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/open-access_resources_thesis/0100048977806.html">Electromagnetic characterisation of materials using complementary frequency selective surfaces</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vardaxoglou J.C.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Vardaxoglou J.C.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Njoku Chinwe C.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Njoku Chinwe C.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Whittow W.G.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Whittow W.G. </a> <span>2013</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：使用互补频率选择表面的材料电磁特性</span> </p> </li> <li> <div> <b>8. </b><a class="enjiyixqcontent" href="/ntis-science-report_ad_thesis/020713022.html">DNA based Frequency Selective Electromagnetic Interference Shielding (Preprint).</a> <b>[R] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ouchen, F.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ouchen, F.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kreit, E.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Kreit, E.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Grote, J.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Grote, J. </a> <span>2017</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：基于DNa的频率选择性电磁干扰屏蔽（预印本）。</span> </p> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/academic-journal-cn_high-power-laser-particle-beams_thesis/0201289465560.html">频率选择表面结构的电子系统K/Ka波段电磁屏蔽分析</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=沈宁&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 沈宁</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=闫丽萍&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,闫丽萍</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=谷智渊&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,谷智渊</a> <span> <a href="/journal-cn-8763/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 强激光与粒子束 </a> </span> <span> . 2021</span><span>,第005期</span> </span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-cn_electrical-world_thesis/0201296428096.html">使用屏蔽电缆降低电磁干扰</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘阳春&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘阳春</a> <span> <a href="/journal-cn-8506/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 电世界 </a> </span> <span> . 2009</span><span>,第7期</span> </span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-cn_electronic-products_thesis/0201294760108.html">屏蔽新设计抑制板级电磁干扰——在板布局阶段解决辐射电磁干扰问题节省时间和金钱</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Norman Quesnel&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . Norman Quesnel</a> <span> <a href="/journal-cn-8756/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 今日电子 </a> </span> <span> . 2001</span><span>,第4期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_computer-engineering-software_thesis/0201290796289.html">引信电子安全系统抗电磁干扰隔离距离和金属屏蔽防护计算方法</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=郑松&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 郑松</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=展学磊&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,展学磊</a> <span> <a href="/journal-cn-8922/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 软件 </a> </span> <span> . 2021</span><span>,第007期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-jiaozuo-university_thesis/0201264281285.html">计算机控制系统电磁干扰的屏蔽与滤除</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=周小燕&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 周小燕</a> <span> <a href="/journal-cn-38477/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 焦作大学学报 </a> </span> <span> . 2008</span><span>,第001期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-6402_thesis/020221675404.html">测量控制系统的电磁干扰与屏蔽抑制技术</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=DAI Jun&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 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