一种有源相控阵天线误差补偿方法

One Error Compensation Method about Active Phased Array Antenna

摘要:

为了消除由于有源相控阵天线单元间互耦、天线的安装误差、天线方向图的不一致性和天线罩的影响等导致天线校正时与实际天线单元间幅相值存在的差异,采用了一种有源相控阵天线误差补偿方法,获得天线的误差值并保存在雷达校正计算机中,雷达进行校正时调用该值从而很好地消除了上述因素导致的在雷达使用中带来的影响,较好地改善了天线校正的幅相值和波瓣图,保证了雷达实际使用中达到预期指标要求。

Abstract:

For eliminate the amplitude and phase difference exist between antenna calibration and practic antenna because active phased array antenna's mutual coupling between elements, antenna's installation errors, antenna pattern's inconsistent and radome effects, one error compensation method about active phased array antenna is introduced to get the antenna's error value which is saved in the radar's calibration computer. When calibrate radar call the value to avoid influence, and this method improve the amplitude and phase and lobe pattern, so the radar's index satisfy the demand in practice.