A phase shift system that is used for changing phases of signals transmitted to at least two radiation elements, comprising at least two phase shifters configured to provide signals to the radiation elements, each phase shifter having a phase shift part used for moving so as to change phases of signals passing through the phase shifter, the system further comprising: a phase shift drive device that is connected to the phase shift part of each phase shifter for synchronous linkage of all the phase shift parts, such that the phase shift parts move at different velocities to form a differential continuous phase distribution among the signals of the radiation elements, wherein the phase shift drive device comprises a synchronous linkage element and at least two variable-speed transmission devices, one end of each variable-speed transmission device is connected to the synchronous linkage element, and one end of the first variable-speed transmission device is connected to the synchronous linkage element, and the other end thereof is connected to the phase shift part of the first phase shifter among the phase shifters; one end of the second variable-speed transmission device is connected to the synchronous linkage element, and the other end thereof is connected to the phase shift part of the second phase shifter among the phase shifters, whereby the movement of the synchronous linkage element causes the phase shift parts connected to all variable-speed transmission devices to move at different velocities; wherein the variable-speed transmission devices each comprise a toothed rack and a toothed wheel the toothed wheel is connected to the phase shift part of the phase shifter, the toothed rack is connected to the synchronous linkage element, and the toothed wheel is meshing engaged, directly or indirectly, to the toothed rack; wherein the movement of the synchronous linkage element causes the rack to drive the toothed wheel to move, which consequently drives the corresponding phase shift part of the phase shifter to move; characterized in that all of the variable-speed transmission devices of the phase shift system, the rack structures are different, and the toothed wheel structures are the same for the variable-speed transmission devices to drive, the phase shift parts of the phase shifters connected thereto to move at different velocities. a phase shift drive device that is connected to the phase shift part of each phase shifter for synchronous linkage of all the phase shift parts, such that the phase shift parts move at different velocities to form a differential continuous phase distribution among the signals of the radiation elements, wherein the phase shift drive device comprises a synchronous linkage element and at least two variable-speed transmission devices, one end of each variable-speed transmission device is connected to the synchronous linkage element, and one end of the first variable-speed transmission device is connected to the synchronous linkage element, and the other end thereof is connected to the phase shift part of the first phase shifter among the phase shifters; one end of the second variable-speed transmission device is connected to the synchronous linkage element, and the other end thereof is connected to the phase shift part of the second phase shifter among the phase shifters, whereby the movement of the synchronous linkage element causes the phase shift parts connected to all variable-speed transmission devices to move at different velocities; wherein the variable-speed transmission devices each comprise a toothed rack and a toothed wheel the toothed wheel is connected to the phase shift part of the phase shifter, the toothed rack is connected to the synchronous linkage element, and the toothed wheel is meshing engaged, directly or indirectly, to the toothed rack; wherein the movement of the synchronous linkage element causes the rack to drive the toothed wheel to move, which consequently drives the corresponding phase shift part of the phase shifter to move; characterized in that all of the variable-speed transmission devices of the phase shift system, the rack structures are different, and the toothed wheel structures are the same for the variable-speed transmission devices to drive, the phase shift parts of the phase shifters connected thereto to move at different velocities.