SAR load antenna radiation characteristic test method

The invention provides an SAR load antenna radiation characteristic test method, which can correct unconventional test data drift generated in the test process and improve the test precision of SAR load antenna radiation characteristics. Real-time unconventional drift data are acquired by acquiring test data of a test datum point in real time, the datum point test data are acquired once by using anear-field probe every time one section of test data is completed, unconventional test data drift generated in the test process are corrected, and for a common planar near-field laboratory, the method at least can improve the measurement precision of the phase directional diagram by 15 degrees. 本发明提供了一种SAR载荷天线辐射特性测试方法，能够对测试过程中产生的非常规测试数据漂移进行修正，提升SAR载荷天线辐射特性的测试精度。本发明通过对测试基准点的测试数据进行实时采集，获取实时非常规漂移数据，每完成一段测试数据，使用近场探头对基准点测试数据进行一次采集，实现对测试过程中产生的非常规测试数据漂移进行修正，对于普通的平面近场实验室，该方法至少可提升相位方向图测量精度15°。