| 摘要 |
The object of the present invention is an antenna comprising at least one row of fed radiating elements. At least one of the radiating elements is placed in a moving cell. The antenna comprises at least one mechanical device whose rotation causes the longitudinal displacement of the moving cell in order to alter the spacing of the radiating elements. The mechanical device may comprise at least one threaded rod portion cooperating with a fixed threaded hole joined with a moving cell. |
