一种快速测量与故障检测相控阵天线的新方法

A Novel Method of Fast Measurement and Distinguishing Malfunctions of Phased Array Antenna

介绍了一种测量相控阵天线的新方法——换相测量法,给出了该方法的数学模型及其基于最优配相控制的解。由于使用该方法时要求被测天线和探头均固定不动,仅要求对天线各单元的配相进行控制,故实际上这是用电扫描方法来代替传统的机械扫描方法。该方法应用了单元的阵内方向图等天线先验知识。最后模拟了应用该方法对相控阵天线进行测量和故障检测的全过程。模拟结果表明,该方法是正确的,快速有效的。

A novel method of fast measurement of phased array antenna which is called phase-shift measurement method is introduced in this paper. The mathematic model and the corresponding solution based on the optimized phase-control are developed. Since the antenna under test and the probe are stationary and control of the phase of antenna element is only needed, the method is actually an electrical scanning approach substituting the traditional mechanical scanning. Some characteristic information about antenna such as the electric -field radiation pattern of the radiating element in the phased array is required using this method. The simulation of the process indicates that this method is efficient and correct.