Electronic scanning antenna

The invention discloses an electronic scanning antenna, which belongs to the technical field of wireless communication and comprises an array antenna, a first cover plate structure, a Butler network, a multi-channel MEMS switch SiP and a second cover plate structure. Wherein the Bulter network is integrated with a multi-channel MEMS switch SiP, and the displacement of a movable bridge of the MEMS switch is realized through external power supply driving, so that the radio frequency transmission phase of the Butler network is changed, the port phase configuration combination number of the Bulter network is increased, and the spatial domain beam reconstruction number of the electronic scanning antenna is realized. According to the invention, the phase combination configuration number of the Butler network is increased, and the spatial domain beam pointing angle of the electronic scanning antenna is increased. And secondly, the driving power consumption of the MEMS switch is close to zero, so that the low power c