Base station antenna, electric downward inclination transmission device and switching mechanism

Abstract

The invention discloses a base station antenna, an electric downward inclined transmission device and a switching mechanism. The switching mechanism comprises a mounting assembly, wherein the mountingassembly comprises a first mounting plate and a second mounting plate arranged at opposite intervals. A first transmission assembly includes a telescopic member and a drive member for driving the telescopic member to reciprocate in a preset linear direction; and a second transmission assembly including a first transmission shaft, a second transmission shaft for driving the input gear to rotate, and an abutment member. The switching mechanism can realize the meshing switching between the input gear and at least two output gears. The transmission device of the electric downward inclination adopts the switching mechanism, so that the electric downward inclination of at least two phase shifters can be adjusted by two motors, the mechanism of the transmission system is greatly simplified, andthe cost is saved; The base station antenna adopts the transmission device of the electric downward inclination angle, which greatly simplifies the mechanism of the transmission system and saves the cost.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a base station antenna, a transmission device for an electric downtilt angle, and a switching mechanism. Background technique [0002] With the increasing number of mobile communication terminal users, the demand for network capacity of sites in the mobile cellular network is increasing. At the same time, it is required to minimize the interference between different sites or even between different sectors of the same site, that is, to realize the network Maximize capacity and minimize interference. To achieve this purpose, it is usually achieved by adjusting the downtilt angle of the antenna beam on the station. [0003] Among the two methods of adjusting beam downtilt, mechanical downtilt and electronic downtilt, electronic downtilt has obvious advantages and is the current mainstream and future development trend. Electric downtilt control is mainly divided into t...

AI Technical Summary

Problems solved by technology

[0004] However, the motors used to drive the phase shifter in the traditional electric downtilt transmission still correspond to the phase shifter transmission mechanism one by one, the number of motors has not been reduced, and the drive circuit in the control module has not been reduced like the number of motors

In this way, not only the cost of the control system and transmission system of the multi-frequency antenna is high, but also the structure of the transmission system is relatively complicated, and the reliability of the antenna is also affected

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