Abstract: The present invention relates to a satellite tracking antenna system and a satellite tracking method. Step tracking in which the size of a satellite signal sampled in at least one position in which a reflector of the satellite tracking antenna system is tilted is compared to track a satellite is performed, and a measured value of the satellite signal sampled in a specific position in which the reflector is tilted in N?1th tracking and a measured value of the satellite signal sampled in the specific position in which the reflector is tilted in Nth tracking are averaged to compute a value. The reflector is driven according to the value to track the satellite, thereby minimizing a satellite tracking error caused by a sudden movement of a mobile body equipped with the satellite tracking antenna system.

Abstract: The present invention relates to a satellite tracking antenna system and a satellite tracking method. Step tracking in which the size of a satellite signal sampled in at least one position in which a reflector of the satellite tracking antenna system is tilted is compared to track a satellite is performed, and a measured value of the satellite signal sampled in a specific position in which the reflector is tilted in N?1th tracking and a measured value of the satellite signal sampled in the specific position in which the reflector is tilted in Nth tracking are averaged to compute a value. The reflector is driven according to the value to track the satellite, thereby minimizing a satellite tracking error caused by a sudden movement of a mobile body equipped with the satellite tracking antenna system.

Abstract: Disclosed is a satellite tracking antenna applied to a satellite tracking antenna system mounted on a vehicle and method using rotation of a subreflector. The antenna includes a reflector controlled to be oriented toward a target satellite, a subreflector for reflecting a signal reflected from the reflector to an entrance end and for identifying relative signals of upper, lower, left, and right sides of the satellite, a subreflector rotating part for rotating the subreflector at a high RPM, a driving device for driving the reflector in at least one of elevation and azimuth directions, and a fixing member for fixing the antenna system on the vehicle. Thus, since the tracking mechanism is realized by operating the elevation and azimuth motors only using the subreflector, the structure of the antenna can be simplified and the satellite tracking is accurately performed.