| 摘要 |
<p>PURPOSE:To provide a stable reception level even if a relative position with a receiver violently changes by controlling the transmission output of an array antenna in accordance with a relative angle with respect to the receiver and a preset set valve. CONSTITUTION:When a flying object is not loaded on an airplane, etc., variable attenuators 5-1 to 5-N and variable phase shifters 6-1 to 6-N are set by the set point which is previously stored in a preset circuit 2, and a radiation pattern used when the flying object is loaded on the airline and the like is emitted from the array antenna 7. At the time of a non-loaded state after the flying object is detached from the airline and the like, the variable attenuators 5-1 to 5-N and the variable phase shifters 6-1 to 6-N are set by an operation result obtained by a control computer 3, and an optimum pattern corresponding to the direction of the receiver is radiated from the array antenna 7.</p> |
