| 摘要 |
<p>A multibeam antenna comprising: a plurality of primary radiating elements (1), each associated to a respective beam; and an active radiating structure comprising a first planar array of radiating elements (2), a second planar array composed by a same number of radiating elements (3), a set of connections (5) between each radiating element of the first planar array and one corresponding element of the second planar array, and a set of power amplifiers (9) for amplifying signals transmitted through said connections; wherein: the relative positions of the radiating elements of the first and second planar arrays and phase delays introduced by said connections are such that the radiating structure forms an active discrete converging lens; and said primary radiating elements are clustered on a focal surface (G) of said lens, facing the first planar array; characterized in that said first and second planar arrays are both aperiodic. A method of manufacturing such an antenna.</p> |
