| 摘要 |
<p>An adaptive array antenna that provides a wide range of coverage by distributing by the distributor (13) the outputs of antenna elements (111-11M) each with a wide element directional pattern (12) to channel units (141-14N). Connecting points (311-31M) between each channel unit (14i) (i = 1, 2, ..., N) and the distributor (14) are divided into groups of four (P = 4), and these four connecting ends in each group are combined, via level/phase adjusters (231-234), by a synthesizer (221-22L) (L = M/P), from which the synthesized signal is supplied to the receiver (151-15L). The outputs of the receivers (151-15L) are then combined through adjusters (161-16L), which are adaptively processed. In the channel unit (141), the adjusters (231-234) are each set with W1-W4 to produce a subarray directional pattern (24), within which range the combined directivity (19) is controlled. In other channel units, the adjusters (231-234) are set with W5-W8 to produce a subarray directional pattern (26). The whole channel units with appropriate setting of their adjusters (231-234) provide a wide range of coverage.</p> |
