SATELLITE TELECOMMUNICATION AUTOMATIC TRACKING ANTENNA FOR MOVABLE OBJECT SUCH AS SHIP

摘要

PURPOSE: A satellite telecommunication automatic tracking antenna for a movable object such as a ship is provided to mount antennas and telecommunication equipment on the movable object and achieve bidirectional communication service using a telecommunication satellite. CONSTITUTION: A main reflection plate(2) reflects transmission electromagnetic waves or electromagnetic waves received from a satellite. A horn radiator(1) radiates the transmission electromagnetic waves or receive the received waves. A plurality of shaft displacement rotating sub reflection plates(3) is displaced from a shaft of the antenna, and reflects the received waves reflected from the main reflection plate(2) to the horn radiator. An automatic tracking motor driver(19) rapidly rotates the plurality of shaft displacement rotating sub reflection plates(3), tracks the direction of the satellite along the 0 axis of equivalent monopulse generated by the rapid rotation of the sub reflection plates, and controls the rotation of the main reflection plate so that the shaft of the antenna is always oriented to the satellite.