| 双频宽带大型微带反射阵天线设计 |
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| 引用本文： | 李小秋,郑雪飞,杨成. 双频宽带大型微带反射阵天线设计[J]. 微波学报, 2012, 28(1): 8-11 |
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| 作者姓名： | 李小秋 郑雪飞 杨成 |
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| 作者单位： | 1. 南京电子技术研究所,南京210039／天线与微波技术重点实验室,南京210013
2. 南京电子技术研究所,南京,210039 |
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| 基金项目： | “十一五”基础科研资助项目 |
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| 摘 要： | 微带反射阵天线在性能上最主要的缺陷就是窄带,一般情况下其带宽小于5%,对电大口径短焦距馈电时更窄。本文设计并制作出一种由L波段和C波段两个反射面天线组成的6m×2m薄膜双频微带反射阵天线,两个频段的天线共用一层膜面。对该天线的电性能进行了测试,测试结果表明:该天线两个频段的相对带宽均大于10%(副瓣电平≤-18dB)。该天线具有折叠、可展开的结构特征,可以在卫星或航天器上广泛应用。
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| 关 键 词： | 微带反射阵天线 双频 宽带 |
Design on Double Frequency and Wide Band Microstrip Reflectarray Antenna |
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| LI Xiao-qiu,ZHENG Xue-fei,YANG Chen. Design on Double Frequency and Wide Band Microstrip Reflectarray Antenna[J]. Journal of Microwaves, 2012, 28(1): 8-11 |
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| Authors: | LI Xiao-qiu ZHENG Xue-fei YANG Chen |
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| Affiliation: | LI Xiao-qiu1,2,ZHENG Xue-fei1,2,YANG Chen1(1.Nanjing Research Institute of Electronics Technology,Nanjing 210039,China; 2.Science and Technology on Antenna and Microwave Laboratory,Nanjing 210013,China) |
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| Abstract: | The main limitation to microstrip reflectarray antenna performance is the narrow bandwidth.It is generally lower than 5 percent and even less for large microstrip reflectarray antenna.In this paper,the double frequency and wideband microstrip reflectarray antenna was designed,fabricated and tested,which comprised of an L waveband reflecting surface antenna and a C waveband reflecting surface antenna in a same plane.Testing results indicate that the frequency bandwidth can reach 10% for sidelobe level less than or equal to-18dB.The microstrip reflectarray antenna has the characteristics of easily folded and portability,which will be widely applied in satellite or spacecraft. |
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| Keywords: | microstrip reflectarray antenna double frequency wideband |
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