一种星载Ka频段平面反射阵列天线设计  

The design of spaceborne Ka⁃band reflectarray antenna

作　　者：杨帅[1] 杨琳[1] 夏龙安 刘任宸 蒋应富[1] Yang Shuai;Yang Lin;Xia Longan;Liu Renchen;Jiang Yingfu(Shanghai Institute of Satellite engineering,Shanghai 201109,China)

机构地区：[1]上海卫星工程研究所,上海201109

出　　处：《航天电子对抗》2020年第3期54-57,64,共5页Aerospace Electronic Warfare

摘　　要：为适应星载数据传输需求,提出了一种Ka频段平面反射阵列天线设计方案,采用无源空间馈电的反射阵列天线形式和圆极化微带单元设计,给出了仿真与实测结果,天线半功率波束宽度大于7.0°,最大增益为25.5 dB,口径效率为37%,验证了设计方案的有效性,该方案具有高增益、高可靠性、低成本、低功耗等优点。The design way of Ka-band reflectarray antenna used in satellite data transmission is proposed,which adopts the form of space-fed reflection array and circularly polarized microstrip unit.The simulation and test results are given.The simulation results show that the antenna performance is good,the maximum gain is 25.5 dB,the aperture efficiency is 37%,and the beam width is 7.0°.The antenna has advantages of high gain,high reliability,low cost,low power consumption.

关 键 词：平面反射阵列 天线 空间馈电 

分 类 号：TN975[电子电信—信号与信息处理] TN828.5[电子电信—信息与通信工程]