一种双层微带反射阵天线单元设计及应用  

Design and Application of a Two-layer Microstrip Reflectarray Unit

作　　者：王智斌[1] 万国宾[1] 郑文泉[1] 

机构地区：[1]西北工业大学电子信息学院,西安710129

出　　处：《遥测遥控》2013年第2期63-67,71,共6页Journal of Telemetry,Tracking and Command

摘　　要：微带反射阵单元是组成微带反射阵的基本元素,其性能的好坏直接影响整个阵列的性能。针对微带反射阵天线带宽窄的问题,设计一种双层结构的圆环单元,研究不同结构参数对单元相位曲线的相移范围、平滑度以及谐振点位置的影响,并设计一个49单元的微带平面反射阵。仿真结果表明,此阵列频带宽,增益高,具有一定的工程应用价值。The microstrip reflectarray is composed of unit cells,and the ability of unit cell greatly affects the microstrip reflectarray.In this paper,a new kind of microstrip reflectarray antenna cell,which has the structure of two-layer rings,is proposed to solve the problem of narrow bandwidth for the reflect array antenna.The influences of different configuration parameters on its phase characteristics of phase-shift range,smoothness and resonant points are analyzed.Then a 49-element microstrip reflectarray with the proposed cell is designed and simulated.The simulation results show that the reflectarray has broadband and high gain characteristics,and it has great value in the engineering application.

关 键 词：微带平面反射阵 双层圆环 宽带 高增益 

分 类 号：TN827[电子电信—信息与通信工程]