Adaptive antenna

Abstract

An adaptive antenna is disclosed, that comprises a plurality of antenna elements 1.sub.1, 1.sub.2, . . . , and 1.sub.N with different directivity, delay profile measuring units 2.sub.1, 2.sub.2, . . . , and 2.sub.N for estimating states of received signals of the antenna elements for each of delay times that have been designated, antenna selecting units 3.sub.1, 3.sub.2, . . . , and 3.sub.L for selecting a part of the antenna elements for each of the delay times corresponding to the estimated result, adaptive signal processing portions 4.sub.1, 4.sub.2, . . . , and 4.sub.L for determining the received signals of the part of the antenna elements that have been selected and multiplying the received signals to which relevant weights have been determined for each of the delay time and summing the weighted signals, delaying circuits 5.sub.2 and 5.sub.3 for compensating the time lag, or delay of each of the received signals for each of the delay times, and a combining unit 6 for combining the weighted signals that have been compensated for the delay times.

Dependencies are inferred from the claim text.