微带反射阵参数对口径效率影响的分析  

Effects of Reflectarray Parameters on Aperture Efficiency

作　　者：瞿颜[1] 郭陈江[1] 丁君[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》2014年第4期53-58,共6页Journal of Telemetry,Tracking and Command

基　　金：总装预研重点基金(No.9140A01010412HK03004);航天创新基金(No.HTCXJJKT-22)

摘　　要：在反射阵的初期设计中,为保证整个天线的效率,分析反射阵参数对其口径效率的影响是必不可少的。研究反射阵口径效率的计算方法,对其中溢出效率的计算采用一种新方法,方法可以在不用确定阵面对馈源张角的情况下,计算口径的溢出效率;同时推导了渐削效率的计算公式。在详细推导的基础上,对影响口径效率的阵列参数进行分析,为优化反射阵天线设计提供了指导。In the design procedure of microstrip reflectarray antenna,the proximate analysis of aperture efficiency is very necessary for predicting the antenna performance.The approach to calculate aperture efficiency is studied in this paper.A general approach is introduced to calculate the spillover efficiency of a reflectarray with any feed form without the calculation of reflectarray aperture solid angle with respect to the feed.Meanwhile,the taper efficiency of the reflectarray is calculated with a unified set of equations.On the basis of these derivations,the influences of the reflectarray parameters on the aperture efficiency are performed numerically to offer the guidelines for optimizing the aperture efficiency of reflectarray antenna.

关 键 词：反射阵天线 口径效率 溢出效率 渐削效率 

分 类 号：TN623[电子电信—电路与系统] TN822