Patent ID: 8314735

Claim:
A satellite tracking antenna system comprising: an antenna unit for receiving a satellite signal from a satellite; a GPS receiver for receiving a GPS signal from a GPS satellite; an azimuth-angle gyro-sensor for detecting the movement of an azimuth angle of a vehicle; a control board including: an elevation-angle controller for analyzing the GPS signal received from the GPS receiver, calculating an initial elevation-angle location of the satellite, and capturing the calculated elevation angle location, and a main controller for analyzing the satellite signal received from the antenna unit, capturing the azimuth angle of the satellite, analyzing the azimuth-angle movement of the vehicle detected by the azimuth-angle gyro-sensor, and tracking the azimuth angle of the satellite; and a motor unit including: an elevation-angle motor for rotating an elevation angle of the antenna unit toward an elevation-angle directional location upon receiving a control signal from the elevation-angle controller, and an azimuth-angle motor for rotating the azimuth angle of the antenna unit toward the azimuth-angle directional location of the satellite upon receiving a control signal from the main controller, wherein the elevation-angle controller tracks a satellite elevation-angle variation caused by the movement of the vehicle, controls the elevation-angle motor if the elevation angle variation is equal to or higher than a reference value, and rotates the elevation angle of the antenna unit toward a changed satellite elevation angle directional location.