摘要
为了精确测量卫星导航测量型天线相位中心及其稳定度,简述了天线相位中心及其稳定度的基本概念,通过移动参考点方法,研究了利用矢量网络分析仪测量卫星导航天线相位中心稳定度的原理方法。给出了一个卫星导航测量型天线频率分别为1 207 MHz和1 602 MHz的相位方向图和相位中心稳定度测量结果。实验结果表明:当天线相位中心与测试转台旋转中心重合时,在不同切割面所测量天线主波束相位方向图的相位变化是不同的。可见在不同测量切割面,天线相位中心稳定度是不同的。
In order to accurately measure satellite navigation survey antenna phase centre and phase centre stability,this paper describes simply basic concept of antenna phase centre and stability,and the principle and method for measuring satellite navigation antenna phase centre stability are studied by the method of moving reference point using vector network analyzer.Test results of antenna phase pattern and phase center stability are given respectively at the frequencies of 1 207 MHz and 1 602 MHz.Test results show that phase peak variation of the antenna main beam patterns measured in different cut plane is different when antenna phase centre is mounted on a test positioner with axial rotation centre. It is concluded that the antenna phase centre stability is different in different measuring cut plane.
作者
秦顺友
张志华
QIN Shunyou,ZHANG Zhihua(The 54th Research Institute of CETC,Shijiazhuang 050081,China)
出处
《无线电通信技术》
2018年第6期623-626,共4页
Radio Communications Technology
基金
"十三五"装备预研领域基金项目(61405180502)
