缝隙耦合结构反射阵天线单元的设计  

Design of Reflectarray Antenna Element Based on Aperture-Coupled Patch

作　　者：肖博宇[1] 张广求[1] 豆栋梁[1] 刘起坤[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2010年第6期729-732,736,共5页Journal of Information Engineering University

摘　　要：平面反射阵天线具有易于折叠、携带方便的特点,结合缝隙耦合单元结构频带较宽的优势,能弥补常见平面反射阵天线带宽窄的不足。文章通过分析缝隙耦合单元的S参数和反射相位曲线,给出了缝隙耦合反射阵单元的详细设计参数。仿真表明该单元作为独立天线时有14.9%的阻抗带宽,用其组成36个单元的小型反射阵,该阵列有16%的-1dB增益带宽,具有良好的工作性能。Because of the characteristics of being easily folded and portable,the flat reflectarray antenna,combined with the advantage of broadband of aperture-coupled element,can recuperate the narrow band of the common flat reflectarray antenna.The S parameter and the reflection phase curve of aperture-coupled elements are analyzed in this paper.According to the analysis,the detailed design parameters of aperture-coupled reflectarray element are proposed.The result shows that 14.9% impedance bandwidth is obtained when the element is regarded as an independent antenna.There is 16%-1 dB bandwidth of gain when 36 elements reflectarray is built,furthermore,it can provide good performance in this case.

关 键 词：反射阵 缝隙耦合结构 反射相位曲线 宽频带 

分 类 号：TN828.6[电子电信—信息与通信工程]