一种基于功率测量的相控阵天线校准方法  

A Calibration Method of Phased Array Antenna Based on Power Measurement

作　　者：敬红勇[1] 李正军[1] 田步宁[1] 

机构地区：[1]西安空间无线电技术研究所,西安710000

出　　处：《空间电子技术》2009年第3期66-68,共3页Space Electronic Technology

摘　　要：文章研究了一种基于功率测量的相控阵天线校准方法,该方法要求探头和被测天线固定,在移相器状态切换的条件下,利用测量探头接收的微波信号功率,测定出各单元初始激励的相对幅度和相对相位。由于不需要相位测量,可以保证测量稳定进行,尤其可以解决高频时相位测量精度问题。最后模拟了应用该方法对相控阵天线进行校准的全过程,模拟结果表明,该方法是正确有效的。A calibration method of phased array antenna is presented based on power measurement. When the antenna under test and the probe are stationary and the phase shifter state is changed, both the relative amplitude and phase of the element excitation can be obtained by amplitude measurement of the array combined power received by probe without phase measurement. Due to this characteristic, stable measurement is guaranteed even at high frequencies, where phase measurement accuracy is problematic. The simulation of the process indicates that this method is efficient and correct.

关 键 词：相控阵天线 校准方法 功率测量 

分 类 号：TN821.8[电子电信—信息与通信工程] TB565.1[交通运输工程—水声工程]