Protective device for testing phased-array antenna

The utility model relates to the technical field of protective devices, and discloses a protective device for phased-array antenna testing, which comprises an equipment main body, a rotary cover is movably mounted at the top of the equipment main body, a plurality of damping structures are arranged in the equipment main body, and a support plate is fixedly mounted at one end, far away from the equipment main body, of each damping structure. And a test antenna is arranged in the equipment main body. Through cooperative use of the equipment main body, the rotating cover, the damping structure, the supporting plate and the test antenna, when the equipment main body vibrates due to external influence in the moving process, the moving direction of the test antenna in the equipment main body is opposite to that of the equipment main body under the inertia effect; and when being extruded to a certain degree, elasticity is released, and damping is contained in the first spring and the second spring, so that the test