BASE STATION ANTENNA

A base station antenna is disclosed. The base station antenna includes a feed mechanism and at least one antenna module. Each antenna module includes at least two antenna units, and each antenna unit has a first sub-radiation phase slope. In each antenna module, first sub-radiation phase slopes of the at least two antenna units are different, and each antenna unit is connected to the feed mechanism through a feeder that is in a one-to-one correspondence with the antenna unit, where the feeder has a second sub-radiation phase slope. The antenna unit and the feeder in pairs that are in a one-to-one correspondence form one radiating element, and a radiation phase slope of each radiating element is a sum of a first sub-radiation phase slope and a second sub-radiation phase slope. A difference between radiation phase slopes of radiating elements in each antenna module meets a first preset value. The base station antenna provided in this application can simplify and shorten a feeder length of a specific feed network, so that a cabling layout of the feed network in the antenna is simplified and a loss of the feed network is reduced when normal radiation of the base station antenna is ensured.