Magnetic type low-cost shipborne VSAT antenna system

A magnetic type low-cost shipborne VSAT antenna system comprises a control system, a multi-point electromagnetic positioning device and a parabolic antenna. The control system comprises an orientationchange sensing device and a controller; the multi-point electromagnetic positioning device comprises an arc-shaped porous plate and a base; a supporting ring is arranged over the arc-shaped porous plate, and the balls are embedded into the supporting ring in a matched mode. When the angle of the parabolic antenna needs to be changed, the ferromagnetic metal head is attracted by different rod-shaped electromagnets to move within the range of the arc-shaped porous plate, and the angle of the parabolic antenna is driven to be changed. The system is small in size and simple in structure, does notneed a complex two-axis or three-axis servo tracking device, greatly reduces the cost, is free of a rotating part, is low in fault rate, prolongs the service life, and improves the reliability. The position of the parabolic a