| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an antenna for ship radar which is hardly affected by sea surface reflection, etc. SOLUTION: Wave directors 26-1 to 26-5 are arranged in front of a radiator 22 and housed in a disk-shaped radome 24. A disk part 10 is supported by a mount with a plurality of shafts including a vertical shaft and driven on the vertical shaft. The radiator 22 and wave directors 26-1 to 26-5 are arranged in such a way that a turning moment on the vertical shaft can be balanced as much as possible to obtain a horizontal attitude restoring action by gyro effects. The disk part 10 may not be of a disk and provided with a round peripheral edge part 10a. A beam may be tilted.</p> |
