Antenna comprising beam forming device

Abstract

The invention discloses an antenna comprising a multi-beam forming device. The antenna comprises at least one driving device, at least one conversion device, at least one output device and at least one selection device. The driving device comprises a first driving shaft and a second driving shaft; the conversion device comprises at least two driven pieces; the output device comprises at least twooutput pieces; the selection device comprises at least one selection piece; the first driving shaft is used for controlling the selection piece; the selection piece is used for triggering connection or disconnection between the driven pieces and the output pieces under control of the first driving shaft; the second driving shaft is used for driving the driven pieces, and when the driven pieces areconnected with the output pieces, the driven pieces are used for driving the output pieces to rotate under driving of the second driving shaft; and the output pieces are used for driving a load. Theantenna can realize simplification of a downward inclination angle control device of a multi-beam base station antenna, and the number of control devices is reduced. According to a traditional mode that one driving device drives one load, the plurality of multi-beam base station antenna downward inclination angle control devices are needed, only one control device is needed in the scheme of the invention, and therefore cost of the antenna is reduced.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an antenna including a beam forming device. Background technique [0002] Cell signal coverage in mobile communications is achieved by installing base station antennas at the base station and making beams cover the planned area. According to changes in factors such as the geographical characteristics of the cell and user distribution, the radiation direction of the base station antenna beam needs to be adjusted. The adjustment of the radiation direction usually includes the beam downtilt in the vertical dimension and the beam azimuth in the horizontal dimension. [0003] The adjustment of vertical downtilt and horizontal azimuth can be divided into two types according to the implementation scheme: the first type is to adjust the physical position of the entire base station antenna through mechanical devices; The phaser makes the signal phase of each unit inside t...

AI Technical Summary

Problems solved by technology

This defect is particularly prominent for multi-frequency antennas integrated with remote radio units (RRU), such as active antenna processing units (AAU), because the volume of multi-frequency antennas is larger than that of single-frequency antennas. It needs to be large, and the overall size is further increased after the RRU is integrated, which poses a challenge to the environmental reliability (such as wind load performance) of the tower top equipment

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