ACTIVE ANTENNA SYSTEM

摘要

An active antenna system 3 is equipped with: a phase shifter 15 provided in the subsequent stage following a plurality of digital-analog converters 11 for converting a plurality of transmission signals corresponding to each of a first sector S1 and a second sector S2, a plurality of distributors 13 for distributing each of the plurality of transmission signals converted by the plurality of digital-analog converters 11 to plurality, and a plurality of antenna elements 9 for transmitting the plurality of transmission signals distributed by the plurality of distributors 13, the phase shifter adjusting the phase of each of the transmission signals distributed by the distributers 13; and a phase shifter 15 (15a, 15b) provided between the plurality of distributors 13 and the plurality of antenna elements 9, the phase shifter 15 (15a, 15b) adjusting the phase of each of the transmission signals distributed by the distributers 13 so that the first sector S1 and the second sector S2 are formed.