Automatic test system and test method thereof for three-dimensional and high-stability phase center antenna

The invention discloses an automatic test system for a three-dimensional high-stability phase center antenna. The system comprises a transmitting subsystem, a receiving subsystem, a receiving subsystem translation mechanism, a vector network analyzer, a digital control sub-system and a display output device. The transmitting sub-system and the receiving sub-system are respectively connected with the vector network analyzer. The receiving subsystem is connected with the receiving subsystem translation mechanism. The digital control sub-system is respectively connected with the vector network analyzer and the display output device. By adopting the above system, the measurement of technical parameters, such as a gain direction graph, a phase direction graph, an average phase center, a phase center deviation amount, a phase center variation quantity and the like at different frequency points, can be realized. Meanwhile, the technical problems that in the prior art, the testing technologyis low in speed and low in