| 摘要 |
<p>PURPOSE:To realize continuous tracking for all loci, by providing a sub reflecting mirror or a first-order horn with movable structure so that a wave radiation axis can be rotated in a traverse direction, in an antenna system of AZ-BL mounting system. CONSTITUTION:The titled antenna system is constituted of an AZ rotating structure object 1 to rotate an antenna main body in 0-360 deg. around an AZ axis, an EL rotating structure object 2 to rotate the antenna main body around an EL axis, a main reflecting mirror 3, a sub reflecting mirror 4, and a tracking signal switching circuit 6. The sub reflecting mirror 4 is constituted so that the wave radiation axis 5 can be rotated in the traverse direction. And the rotating range of an elevation angle is expanded to a zenith-horizon in a direction opposite to the horizon-zenith of a conventional device in addition to that, and a tracking signal is switched in the circuit 6 so as to control an azimuth, an elevation angle, and a traverse angle respectively so that a floating body can be tracked continuously even in the neighborhood of the zenith.</p> |
