| 摘要 |
<p>The present invention relates to an artificial satellite tracking antenna installed in moving objects, such as vehicles, ships, trains, or the like, and automatically tracking position of the satellite such that viewers may conveniently watch satellite broadcasting when in motion without adjusting the antenna. In order to adjust elevation angle of the antenna 10, an elevation angle control apparatus includes a belt 50 in which one end 52 is fixed to the supporting bracket 30 and the other end 54 is fixed to an upper end 22 of the frame 20, a driving motor 60 for driving the belt 50, a fixed pulley 70 disposed between the driving motor 60 and the belt 50 fixed to the supporting bracket 30, a movable pulley 80 disposed between the fixed pulley 70 and the one end 52 of the belt 50 fixed to the supporting bracket 30, and a rod 90, in which the movable pulley 80 is rotatably fixed to one end 92 thereof and the other end 94 thereof is pivotally fixed to the frame 20, wherein the belt 50 is connected from the upper end 22 of the frame 20 to the supporting bracket 30 via the driving motor 60, the fixed pulley 70 and the movable pulley 80, and the elevation angle is adjusted such that the frame 20 is rotated about the elevation angle shaft 40 by the pulling of the belt 50 and the pushing of the rod 90 due the forward and backward rotation of the driving motor 60.</p> |
