深空天线组阵的空间功率合成特性分析  

Analysis on Space Power Synthesis Performance of Deep Space Antenna Array

作　　者：张旭旺 王文灿 马文起[1] 陈少卿[1] 刘友永[1] ZHANG Xuwang;ZHANG Wenchan;MA Wenqi;CHEN Shaoqing;LIU Youyong(The 54th Research Institute of CETC,Shijiazhuang 050081,China;NO.96901 Army,Beijing 100094,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081 [2]96901部队,北京100094

出　　处：《深空探测学报（中英文）》2020年第4期399-406,共8页Journal Of Deep Space Exploration

摘　　要：深空天线组阵是实现极远距离深空探测和通信的重要手段之一。基于天线组阵的信号模型,深入研究了深空天线组阵的空间功率合成特性,分析了各天线信号的时延及相位补偿误差对空间功率合成性能的影响,并研究了天线组阵的阵型对栅瓣位置及幅度特征的影响。仿真试验结果表明:均匀分布方形天线组阵的栅瓣分布均匀且幅度较大,随着天线组阵非均匀分布程度的增加,栅瓣会变得散乱分布且幅度降低,但主瓣的变化并不明显。圆形天线组阵的栅瓣分布比较散乱,而L形天线组阵的主瓣和栅瓣均为椭圆形。为深空天线组阵系统的设计提供了一定的参考。Deep space antenna array is one of the important measures to realize deep space exploration and communication with a very long distance.Based on the signal model of antenna array,the space power synthesis performance characeristics of the deep space antenna array are studied.The effects of time delay and phase compensation error of each antenna signal on the space power synthesis performance are analyzed,and the effects of formation of antenna array on the position and amplitude characteristics of grating lobes are studied.The simulation test results show that the grating lobes of the uniformly distributed square antenna array are evenly distributed and have a large amplitude.As the degree of non-uniform distribution of the antenna array increases,the grating lobes will become scattered and the amplitude will decrease,but the main lobe changes will not Not obvious.The grating lobes of the circular antenna array are scattered,while the main lobe and grating lobes of the L-shaped antenna array are both elliptical.It provides a certain reference for the design of deep space antenna array system.

关 键 词：天线组阵 功率合成 补偿误差 天线阵型 栅瓣 

分 类 号：V446.3[航空宇航科学与技术—飞行器设计]