有源相控阵雷达天线实时校正方法

针对有源相控阵天线的超低副瓣、高增益及精确波束指向等性能的实现进行分析研究。首先分析一般相控阵雷达天线及其校正耦合网络的结构，并对实时校正的原理以接收校正为例进行详细的阐述，最后通过某有源相控阵雷达天线实测数据验证该方法的有效性及可行性。

Research on Real-time Calibration Method of Active Phased Array Radar Antenna

To solve the problem that the realization of ultralow sidelobe, high gain and precision beam pattern on active phased array antenna is sensitive to array channels amplitude-phase inconsistency, based on the transmit-receive channel characteristic of actual active phased array radar, a real-time transmit-receive chan nels calibration method using the fixed coefficient of antenna is proposed. It can realize the real-time calibration of radar＇s transmit-receive channels before radar starting work by using the real-time internal calibration data and previously saved fixed coefficient. The experimental result shows that this method can dynamically calibrate the channel amplitude-phase inconsistency and realize the performance of ultralow sidelobe and high gain on the active phased array radar antenna.