| 基于多环结构的八模态涡旋波微带天线 |
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| 引用本文： | 朱茂华,梁仙灵,姚羽,耿军平,朱卫仁,金荣洪.基于多环结构的八模态涡旋波微带天线[J].电波科学学报,2018,33(4):455-462. |
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| 作者姓名： | 朱茂华 梁仙灵 姚羽 耿军平 朱卫仁 金荣洪 |
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| 作者单位： | 上海交通大学, 上海 200240 |
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| 基金项目： | 国家自然科学基金61571298863计划2015AA7124058 |
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| 摘 要： | 介绍了一种多模态涡旋电磁波单元天线设计方法.利用四个同心短路圆环微带贴片产生八模态的涡旋电磁波波束.该单元天线结构简单，尺寸小.仿真与实验结果表明，八个模态（l=±1，±2，±3，±4）均拥有良好的涡旋相位特性，相应阶数的单元增益分别为4.8 dBi，4.1 dBi，5.1 dBi，5.3 dBi，各模态的阻抗带宽均大于100 MHz.该天线为多模涡旋电磁波应用提供了一种新的可能.
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| 关 键 词： | 涡旋波 短路圆环 微带贴片 端口隔离 多模态 |
| 收稿时间： | 2018-05-09 |
Eight-mode OAM microstrip antenna based on multi-ring structure |
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| Affiliation: | Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | This paper presents a multi-mode orbital angular momentum(OAM) wave element antenna design. These eight-mode OAM beams are generated simultaneously using four concentric shorted annular ring microstrip patches, and the antenna is simple in structure and small in size. Simulation and test results show that eight modes (l=±1, ±2, ±3, ±4) have good vortex phase characteristics. Meanwhile, the element gains of corresponding modes are 4.8 dBi, 4.1 dBi, 5.1 dBi, and 5.3 dBi, respectively, and the impedance bandwidth of all modes are greater than 100 MHz. It can provide a new possibility for future multi-mode OAM wave applications. |
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