Characteristic mode analysis and design of a slot‐loaded low‐profile wideband microstrip patch antenna

摘要

Abstract > In this letter, a slot‐loaded low‐profile wideband microstrip patch antenna is presented and analyzed. The theory of characteristic modes (TCM) is applied to study the bandwidth and the radiation performance of the proposed antenna. We find that the resonant frequencies of two characteristic modes, with similar characteristic current distributions and far field radiation patterns, are close to each other. By exciting these two modes simultaneously, the proposed microstrip patch antenna attains wide band properties. In addition, the radiation patterns are stable over the whole passband, which is consistent with the prediction by the TCM. The measurements reveal that the antenna's operating frequency ranges from 2.275 to 2.705?GHz with standing wave ratio less than 2, which exhibits a wide impedance bandwidth of 17.3%. The thickness of the proposed antenna is only 0.04 λ <sub>0</sub> . The realized gain is stable and varies between 8.2 and 9.7?dBi within the whole passband. Consequently, the TCM shows potential applications in the area of the design of a high‐performance slot‐loaded microstrip patch antenna. </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 type =“main”xml：lang =“en”> <标题类型=“main”>抽象</ title> > 在这封信中，呈现并分析了装入槽的低调宽带微带贴片天线。应用特征模式（TCM）理论用于研究建议天线的带宽和辐射性能。我们发现两个特征模式的谐振频率，具有相似的特征电流分布和远场辐射图案，彼此靠近。通过同时激励这两种模式，所提出的微带贴片天线达到宽带属性。另外，辐射图案在整个通带上稳定，这与TCM的预测一致。测量结果表明，天线的工作频率从2.275到2.705？GHz，驻波比小于2，其呈现宽的阻抗带宽为17.3％。所提出的天线的厚度仅为0.04 λ</ i> <sub> 0 </ sub> 。实现的增益是稳定的，在整个通带内的8.2和9.7之间变化。因此，TCM示出了高性能槽的微带贴片天线设计的潜在应用。 </ 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>2020年第3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"> </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"> </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=characteristic modes&option=203" rel="nofollow">characteristic modes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=low profile&option=203" rel="nofollow">low profile;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=microstrip patch antenna&option=203" rel="nofollow">microstrip patch antenna;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=slot‐loaded&option=203" rel="nofollow">slot‐loaded;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=wideband antenna&option=203" rel="nofollow">wideband antenna;</a> </p> <div class="translation"> 机译：特征模式;低调;微带贴片天线;装载槽;宽带天线; </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="/academic-journal-cn_journal-southeast-university-english-edition_thesis/0201235276870.html">具有不同宽槽数的矩形微带贴片天线多带特性研究</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=A. 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