Displacement regulating and amplifying device and base station antenna with same

Abstract

The invention discloses a displacement regulating and amplifying device and a base station antenna with the same. The displacement regulating and amplifying device comprises a first threaded rod, a second threaded rod, a regulating wheel and a base plate, wherein the first threaded rod is in butt connection with the second threaded rod; the thread pitch of the second threaded rod is greater than that of the first threaded rod; the two ends of the second threaded rod are supported on the base plate in an axially limited way; the first threaded rod is in threaded connection with a first sliding block; the second threaded rod is in threaded connection with a second sliding block; the first sliding block is connected with a component of which the displacement is to be regulated; and the regulating wheel is arranged at the free end of the second threaded rod, so that along with the rotation of the regulating wheel, the first threaded rod can drive the first sliding block and the component of which the displacement is to be regulated to move along the axial direction at a low speed, and that the second threaded rod can drive the second sliding block to move along the axial direction at a high speed. The device improves the accuracy of reading and ensures the precision of regulation.

Description

technical field [0001] The invention relates to a displacement adjustment amplification device and a base station antenna including the device for amplifying the phase adjustment displacement of a phase shifter. Background technique [0002] The downtilt angle of the mobile communication base station antenna can be realized by adjusting the phase shifter. At present, the movement modes of the sliding plate inside the phase shifter for adjusting the phase of the antenna generally have two modes: rotary motion and linear motion. figure 1 Schematic diagram of a phase shifter using linear motion for the slide. As shown in the figure, the two free ends of the sliding piece 6 of the phase shifter are inserted into the fixed guide cylinder 7 , and the sliding piece 6 slides left and right relative to the fixed guide cylinder 7 . The sliding piece 6 is connected with the adjusting device through a pull rod 102, and the adjusting device drives the sliding piece 6 to move, thereby a...

AI Technical Summary

Problems solved by technology

The scale distance of such a scale is obviously too small, which is inconvenient to read and may easily lead to reading errors.

And the general antenna end cap 106 is the benchmark for reading the scale. When the base station antenna is assembled, the antenna end cap 106 often produces assembly deviations. Since the length of each scale of the scale is only 2.2 mm, this length is relatively large compared to the The assembly deviation of the end cover 106 is obviously small, which also causes the reading of the antenna scale 4 of the base station to be inaccurate, thereby increasing the phase adjustment error of the phase shifter

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