| 基于超表面的反射阵天线设计 |
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| 引用本文： | 任武,张娅楠.基于超表面的反射阵天线设计[J].北京理工大学学报,2021,41(1):70-78. |
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| 作者姓名： | 任武 张娅楠 |
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| 作者单位： | 北京理工大学信息与电子学院,北京100081;北京理工大学信息与电子学院,北京100081 |
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| 摘 要： | 提出了一种基于超表面的Ku波段高增益反射阵天线.设计了一种"灯笼折线型"结构结合开口方环结构的超表面单元形式，单元大小为0.3λ0.通过仿真软件进行优化分析，该单元可以实现520°的相移范围且具有良好的相移特性，应用该单元进行了Ku波段高增益反射阵天线的设计，设计了阵面口径大小为160.8 mm×160.8 mm （7.2λ0×7.2λ0）的反射阵天线，采用角锥喇叭进行馈电，该反射阵天线获得了较高的增益以及口径效率.同时在卫星通信的上行链路频段14.0~14.5 GHz以及下行链路频段12.25~12.75 GHz范围内具有较好的性能.对该反射阵列进行了加工测试，测试结果与仿真结果较为吻合，从而验证了该反射阵天线设计的有效性.
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| 关 键 词： | 反射阵 超表面 高增益 相移范围 |
| 收稿时间： | 2019/6/27 0:00:00 |
A Reflectarray Antenna Design Based on Metasurface |
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| REN Wu,ZHANG Yanan.A Reflectarray Antenna Design Based on Metasurface[J].Journal of Beijing Institute of Technology(Natural Science Edition),2021,41(1):70-78. |
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| Authors: | REN Wu ZHANG Yanan |
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| Affiliation: | School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A Ku band high gain reflectarray antenna was proposed based on metasurface. Firstly, adopting a "lantern meander-line" structure combined with an open square ring structure, a metasurface element was designed with a unit size of 0.3λ0. The simulation analysis results show that, the unit can achieve a phase shift range 520° and a better phase shift characteristics. And then, a ku band high gain reflectarray antenna was designed with the unit. The reflectarray antenna was designed with a caliber size 160.8 mm×160.8 mm(7.2λ0×7.2λ0), fed by a pyramidal horn. The simulation analysis results show that, the reflectarray antenna can achieve higher gain and aperture efficiency. At the same time, it shows a better performance in the uplink frequency band 14.0~14.5 GHz and the downlink frequency band 12.25~12.75 GHz in the satellite communication. And the practical testing results are agreement with the simulated results, verifying the effectiveness of the design of the reflectarray antenna. |
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| Keywords: | reflectarray antenna metasurface high gain phase shift range |
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