Phased-array antenna transmitting and receiving dual-test system

The invention relates to a phased-array antenna transmitting and receiving dual-test system, which is characterized by comprising a control terminal, a signal controller, a vector network analyzer A, a vector network analyzer B and a circulator, the control terminal compiles and compiles modulation control instructions, the signal controller generates TR modulation signals for controlling the antenna to work, timing signals sampled by the vector network analyzer A/B, and the circulator is connected with the TR modulation signals. The antenna array surface is provided with an input/output port, a circulator is arranged on a connecting link between the antenna and the two vector networks, and a circulator is arranged between the vector networks and the waveguide probe. Transmitting and receiving are tested at the same time, and the antenna testing efficiency is doubled; the test system is compatible with a multi-beam-position test method. The system enables the testing environment and working condition to be cl