Multichannel transmission mechanism and antenna

Abstract

The invention provides an antenna and a multichannel transmission mechanism thereof. The multichannel transmission mechanism comprises a power output shaft and a frame body, wherein the frame body is provided with an end surface, the end surface is provided with an avoidance hole for the power output shaft to pass through, a first end of the power output shaft penetrates through the avoidance hole to be connected with a phase shifter, a second end of the power output shaft is provided with a return locking unit which can move towards the first end of the power output shaft along the axial direction of the power output shaft under the effect of a thrust and can move towards the second end of the power output shaft along the axial direction of the power output shaft when the thrust disappears. Since the multichannel transmission mechanism can support a main transmission mechanism only adopting one motor and one control circuit, the matching number of the motor and the control circuit can be reduced, the size of the antenna is reduced, and the miniaturized design of the antenna is facilitated.

Description

technical field [0001] The present invention relates to the field of mobile communication antenna control, in particular to downtilt angle control technology, in particular to a multi-way transmission mechanism and an antenna using the multi-way transmission mechanism for downtilt angle control. Background technique [0002] In the mobile communication system, the beam forming device is used to adjust the main source of the mobile communication antenna according to the radiation angle of the mobile antenna. Depending on the downtilt angle, relevant mobile communication units of different sizes can be covered and adjusted accordingly. [0003] At present, this kind of device is usually called RET unit, that is, "remote electric adjustment" device, and the multi-beam multi-band transmission system in the existing electric adjustment antenna control system is generally driven by a motor for each frequency band. The main disadvantage of the external RET ESC system is that first...

AI Technical Summary

Problems solved by technology

[0003] At present, this kind of device is usually called RET unit, that is, "remote electric adjustment" device, and the multi-beam multi-band transmission system in the existing electric adjustment antenna control system is generally driven by a motor for each frequency band. The main disadvantage of the external RET ESC system is that firstly, more motors are required, and secondly, each motor needs to be equipped with a set of drive control circuits. Since the motors and drive control circuits are both active components, the probability of failure Higher, requires maintenance and is more expensive

Designing multiple motor drive control circuits into one drive circuit can solve the problem of many circuit failures, and the total circuit device only needs one set, which greatly reduces the cost of components. However, the actual cost of the motor used to drive the phase shift There is still no way to reduce the number

[0004] In order to solve the above problems, an existing multi-beam forming device includes a switching device, which can be selectively connected with a plurality of driven wheels, and driven by the drive shaft to rotate, thereby driving the switching device to rotate, thereby driving The driven wheel rotates, and the driven wheel drives the driven shaft to rotate. The driven shaft consists of multiple, and is connected with the drive device for driving the phase shifter, thereby realizing the adjustment of multiple frequency bands. In the above technical solution, the switching structure adopted is as follows: Two forms, but the overall structure is complex, and more driving sources are required to make it occupy a larger space, which is not conducive to the miniaturization design of the antenna

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