| 摘要 |
Rotary drive apparatuses (A1 and A2) are provided with external cylinder axes (5) and internal cylinder axes (4), each of which possesses an output end, is independent of the other axis, and rotates about a central axis of rotation of each; wherein one pair of Luneburg lenses (21) are driven with the rotary driving force of the output end of the external cylinder axis (5) as a drive source, and one pair of feeds (22) are driven using the rotary driving force generated by the difference between the rotation speeds of the output ends of the external cylinder axis (5) and the internal cylinder axis (4). Accordingly, it is possible to provide radio wave lens antenna apparatuses (B1 and B2) as well as rotary drive apparatuses (A1 and A2) which are capable of achieving both miniaturization and improvement of operating accuracy. |
