Electric-adjustment antenna transmission device

Abstract

The invention discloses an electric-adjustment antenna transmission device. The device is characterized by including a position-selecting transmission component connected with an electric-adjustment controller, screw rod transmission components and pulling rods. The screw rod transmission components include transmission screw rods and transmission screw rod gears disposed on the transmission screwrods. The screw rod transmission components are connected with phase shifters through the pulling rods. The position-selecting transmission component includes position-selecting connection shaft sleeves, a front chamber body, a position-selecting input shaft, a transmission connection shaft sleeve, a transmission input shaft, idler wheels, a transmission driven-wheel, a position-selecting memberand a rear chamber body. The electric-adjustment controller is connected with the position-selecting input shaft through the position-selecting connection shaft sleeves. Position-selecting input shaftgears are disposed at the position-selecting input shaft. Position-selecting racks meshing with the position-selecting input shaft gears are disposed on a position-selecting sliding plate. Position-selecting gears are disposed on the position-selecting sliding plate. According to the electric-adjustment antenna transmission device of the invention, the dual-motor controller is used to control adjustment of the multiple groups of phase shifters, a structure is simple, costs are low, weight is low, size is small, and mass production is convenient.

Description

technical field [0001] The present invention relates to the technical field of antenna equipment, in particular to an electrically adjustable antenna. Background technique [0002] In the current mobile communication system, the electrical downtilt angle of the radiation surface of the electrically adjustable antenna is adjusted correspondingly according to the phase change of the radiation unit of the antenna. Specifically, the transmission device drives the phase shifter in the antenna to change the phase and amplitude of each radiation unit, and then changes the phase, horizontal component, vertical component amplitude and other parameters of the antenna, so as to achieve the effect of changing the coverage area. The electronically adjustable antenna realizes the automatic control of the electrical downtilt angle of the antenna through the operation of the electronically adjustable controller unit and the mechanical transmission device. In a traditional mechanical contro...

AI Technical Summary

Problems solved by technology

When it is necessary to set up a multi-frequency multi-channel antenna, the transmission mode of the multi-frequency multi-channel antenna is the structural superposition of a single-frequency single-channel antenna, that is, a motor independently controls a group of phase shifters. For a multi-frequency multi-channel antenna, To realize the independent adjustment of multiple groups of phase shifters, it is necessary to configure RCU with multiple motors. Due to the high price and large size of the motors, the volume and cost of the antenna are increased, and there are disadvantages such as complex structure and inconvenient production.

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