[1]马 宇,张 浩,刘 婷,等.一种“风车”形单元平面反射阵列天线的设计[J].南京师范大学学报(自然科学版),2019,42(02):81-86.[doi:10.3969/j.issn.1001-4616.2019.02.013]
　Ma Yu,Zhang Hao,Liu Ting,et al.A Design of Windmill-Shaped Element Reflectarry Antenna[J].Journal of Nanjing Normal University(Natural Science Edition),2019,42(02):81-86.[doi:10.3969/j.issn.1001-4616.2019.02.013]
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一种“风车”形单元平面反射阵列天线的设计()
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《南京师范大学学报》（自然科学版）[ISSN:1001-4616/CN:32-1239/N]

卷:
第42卷
期数:
2019年02期
页码:
81-86
栏目:
·物理学·
出版日期:
2019-06-30

文章信息/Info

Title:
A Design of Windmill-Shaped Element Reflectarry Antenna
文章编号:
1001-4616(2019)02-0081-06
作者:
马 宇; 张 浩; 刘 婷; 章海锋
南京邮电大学电子与光学工程学院、微电子学院,江苏 南京 210023
Author(s):
Ma Yu; Zhang Hao; Liu Ting; Zhang Haifeng
College of Electronic and Optical Engineering & College of Microelectronics,Nanjing University of Postsand Telecommunications,Nanjing 210023,China
关键词:
反射阵列天线; 相位补偿; 固态等离子体; 可调谐; 匹配层
Keywords:
reflectarry antenna; phase compensation; solid plasma; tunable; matching layer
分类号:
O441.4
DOI:
10.3969/j.issn.1001-4616.2019.02.013
文献标志码:
A
摘要:
为了改善反射阵列单元相位特性曲线的线性度,扩大相位补偿的覆盖范围,采用了一种新型的反射阵列单元,即在传统的反射阵列单元上方加上一层介质匹配层. 仿真结果表明,相比传统的设计方式,新型反射阵列单元的相位特性曲线线性度得到明显改善,相位补偿实现了0°～360°的完全覆盖. 本文中固态等离子体(GaAs)代替金属工作,利用固态等离子体的可重构特性设计了一款具有动态波束扫描的平面反射阵列天线,反射主波束的方向分别达到了预期设计的15°、20°和25°,并且每个天线的副瓣和主瓣都相差了至少10 dB以上. 通过动态调节固态等离子体的激励状态,即改变反射阵列单元的谐振结构,可以实现空间波束扫描.
Abstract:
In order to improve the linearity of the phase shift curve of the reflective array unit and extend the coverage of the phase compensation,a new type of reflective array unit is adopted,i.e.,a layer of dielectric matching layer is added over the conventional reflective array unit. The simulation results show that compared with the traditional design method,the linearity of the phase shift curve of the new type of reflective array unit is significantly improved,and the phase compensation achieves a completely coverage of 0°～360°. We use the solid plasma to replace the metal,which is realized by GaAs. Therefore,a reflectarry antennas with dynamic beam scanning were designed based on the the reconfigurable properties of solid plasma. The directions of the reflected main beams can concentrate on 15°,20°,and 25°,respectively,which are expected,and each antenna’s side lobe and main lobe are at least 10dB different. By dynamically adjusting the excitation state of the solid plasma,i.e.,changing the excitation state of the resonance unit,space beam scanning can be achieved.

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备注/Memo

备注/Memo:
收稿日期:2018-07-05.
基金项目:南京邮电大学引进人才科研启动基金(高水平师资)项目(NY217131).
通讯联系人:章海锋,博士,教授,研究方向:电磁超材料、反射阵列天线. E-mail:hanlor@163.com
更新日期/Last Update: 2019-06-30