A complementary Sierpinski gasket fractal antenna array integrated with a complementary Archimedean defected ground structure for portable 4G/5G UWB MIMO communication devices

摘要

Abstract > This article presents the design, development, and experimental validation of an aperture coupled complementary Sierpinski gasket equilateral triangular fractal antenna array for portable 4G/5G UWB communication devices. The proposed antenna array is printed on two FR‐4 substrate layers ( <fi>ε</fi> <sub> <fi>r</fi> </sub> = 4.4, height = 1.57?mm, and tan <fi>δ</fi> = 0.024) with two fractal triangular patches on the top layer (separated by a distance of 3 <fi>λ</fi> /2) and feed network on the bottom layer of FR‐4. The fractal patches (optimized up to second order of iteration) are fed using an aperture‐coupled feeding mechanism, where the aperture slots in the ground layer are modified to complementary Archimedean spiral slots which are interconnected by a modified “X” shaped slot to improve the impedance matching at the operational bands. The proposed array has overall volumetric dimensions of 41?×?99.4?×?3.245?mm 3 and provides a size reduction of 46% for the metallic area using the fractal geometry. The proposed array shows a simulated UWB response from 4.3 to 11.6 GHz (fractional bandwidth of 91.8% at 7.95?GHz) with a simulated peak gain of 4.7 dB (at 9.2 GHz) and port‐to‐port isolation of ≤?15.8 dB for the entire band. For validation of simulated responses, the proposed array is fabricated and tested for S‐parameters ( <fi>S</fi> <sub>11</sub> , <fi>S</fi> <sub>22,</sub> <fi>S</fi> <sub>12</sub> , and <fi>S</fi> <sub>21</sub> ). A measured impedance bandwidth of 6.3 GHz is observed for a frequency band from 5.7 to 12?GHz. Two additional frequency bands are also exhibited by the array from 4.1 to 4.25?GHz and 4.7 to 5.3 GHz. The array diversity parameters such as envelope correlation coefficient (≤0.007 [simulated], ≤0.0057 [measured]), diversity gain (≥9.999 [simulated], ≥9.971 [measured]), mean effective gain (≥?3.9 dB [simulated], ≥?5.1 dB [measured]), and channel capacity loss, (≤0.37 bits/s/Hz [simulated], ≤0.4 bits/s/Hz [measured]) which are calculated using the simulated and measured S‐parameters of the array are also observed. These parameters allow the proposed fractal array to be implemented in a diversity combining technique to improve the overall SNR and hence support a high data rate for 4G/5G multimedia services. </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> > 本文介绍了用于便携式4G / 5G UWB通信设备的孔径耦合互补的Sierpinski垫片等边三角形分形天线阵列的设计，开发和实验验证。所提出的天线阵列印在两个FR-4基板层上（ <fi>ε</ fi> <sub> <fi> r </ fi> </ sub> = 4.4，高度= 1.57？mm，棕褐色 <fi>δ</ fi> 顶层上有两个分形三角形贴片（分隔3 <fi>λ</ fi> / 2）FR-4底层上的馈电网。使用孔耦合馈电机构馈送分形贴片（优化到二阶迭代），其中接地层中的孔隙槽被修改为互补的Archimedean螺旋槽，该螺旋槽通过修改的“x”形槽互连以改善在操作频带的阻抗匹配。所提出的阵列具有41的总体体积尺寸为41？×99.4？×3.245？mm 3 </ sup> 使用分形几何形状为金属区域提供尺寸减小46％。所提出的阵列示出了从4.3模拟UWB响应于11.6千兆赫（在7.95的91.8％的分数带宽？千兆赫）4.7 dB的模拟峰值增益（在9.2千兆赫）和端口至端口隔离的≤？15.8分贝整个乐队。为了验证模拟响应，为S参数制造和测试所提出的阵列（ <fi> s </ fi> <sub> 11 </ sub> 那 <fi> s </ fi> <sub> 22，</ sub> <fi> s </ fi> <sub> 12 </ sub> ，和 <fi> s </ fi> <sub> 21 </ sub> ）。从5.7到12≤GHz的频带观察到测量的6.3GHz的阻抗带宽。阵列也从4.1到4.25？GHz和4.7到5.3 GHz的阵列展示了两个额外的频带。阵列分集参数，如包络相关系数（≤0.007[模拟]，≤0.0057[测量]），分集增益（≥9.999[模拟]，≥9.971[测量]），平均有效增益（≥1.9dB[模拟] ，≥1.1dB[测量]）和信道容量损耗（≤0.37位/ s / hz [模拟]，≤0.4位/ s / hz [测量]）使用模拟和测量的s参数计算还观察到阵列。这些参数允许所提出的分形阵列以分集合技术实现，以改善整体SNR，因此支持4G / 5G多媒体服务的高数据速率。 </ 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7期</span><b style="margin: 0 2px;">|</b><span>共11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=aperture coupled feed&option=203" rel="nofollow">aperture coupled feed;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=complementary Archimedean spiral&option=203" rel="nofollow">complementary Archimedean spiral;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=complementary Sierpinski gasket fractal&option=203" rel="nofollow">complementary Sierpinski gasket fractal;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=multiple‐input multiple‐output (MIMO)&option=203" rel="nofollow">multiple‐input multiple‐output (MIMO);</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=UWB&option=203" rel="nofollow">UWB;</a> </p> <div class="translation"> 机译：光圈耦合饲料;互补的Archimedean螺旋;互补的Sierpinski垫片分形;多输入多输出（MIMO）;UWB; </div> </li> </ul> </div> </div> <div class="literature 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