| 摘要 |
<p>A directional antenna (1) comprising a first plurality of antenna sub-arrays (2 - 11) forming an antenna array, a second plurality of RF receiver units (13 - 19) fewer in number than the first plurality and each arranged for receiving RF signals from one or more of the antenna sub-arrays and for outputting a receiver signal accordingly. A signal processor (20) processes the receiver signals according to a directional antenna beam pattern. At least two non-neighbouring said sub-arrays (2, 5) are connected to a common one RF receiver unit (13) to provide a combined RF signal thereto.</p> |
