Mechanical structure of high-performance two-dimensional electric tilt antenna

Abstract

The invention discloses a mechanical structure of a high-performance two-dimensional electric tilt antenna, which relates to the technical field of electric tilt antennae, in particular to a mechanical structure of an electric tilt antenna with vertical declination angle adjusting and horizontal adjusting functions. A top mechanism, an antenna shell and a lower mechanism are connected, so that a cavity is formed; an antenna body is arranged in the cavity, and is rotationally fixed by using the top mechanism and the lower mechanism from two ends; a lower appearance piece is coated on the outer side of the lower mechanism; a lower inclination angle transmission system is arranged on the antenna body, and is used for controlling the inclination angle of the antenna; and an azimuth angle transmission system is arranged on the lower mechanism, and is used for controlling the horizontal direction of the antenna body. According to the mechanical structure, various properties of the two-dimensional electric tilt antenna can be realized with a physical dimension and low weight, the working reliability and environmental suitability of the antenna are enhanced, operation is easier, and the installation and debugging difficulty is lowered.

Description

technical field [0001] The present invention relates to the technical field of electric-tunable antennas, in particular to a mechanical structure of a high-performance two-dimensional electric-tunable antenna, and in particular to a mechanical structure of an electric-tunable antenna with vertical downtilt adjustment and horizontal coverage direction adjustment. Background technique [0002] Since the advent of the electric adjustable antenna with the function of downtilt angle adjustment - one-dimensional electric adjustable antenna, because it can change the phase of the radiating element to control the downtilt angle of the antenna, it has realized the adjustment of network coverage density and the interference of adjacent antenna coverage Minimal performance. Although the one-dimensional electronically adjustable antenna has greatly improved the performance of directional antennas in terms of network coverage and network coverage adjustment, and currently meets the requi...

AI Technical Summary

Problems solved by technology

Although the one-dimensional electronically adjustable antenna has greatly improved the performance of directional antennas in terms of network coverage and network coverage adjustment, and currently meets the requirements of operators for high-quality signal coverage and can also achieve remote control, it is still not enough in terms of rapid coverage adjustment and intelligent control. There are obvious deficiencies: the one-dimensional electric adjustable antenna can only change the coverage in the positive direction of the antenna, and when the coverage is changed in the horizontal angle, it is necessary to manually operate a single antenna at the antenna installation site; the remote control can only control the antenna down tilt adjustment

[0007] The first implementation method, the antenna reflector does not need to move, the structure is relatively simple, but the antenna needs to have enough longitudinal radiation element array, the antenna has a large size, which does not conform to the development trend of antenna miniaturization, and is basically rarely adopted. The research scope of the present invention;

[0008] In the second implementation method, the reflector needs to move angularly in the horizontal direction, which will bring about the mutual influence of the antenna downtilt transmission system and the azimuth transmission system, the stability and reliability of the horizontal adjustment movement of the antenna, and the RF connector when the reflector rotates. There are a series of problems such as the reliability of the work, the inconvenient reading of the downtilt angle and the horizontal azimuth angle, etc., and the structural design is relatively complicated

[0010] 1. The two-dimensional electronically adjustable antennas of some antenna manufacturers can only realize the RCU control of the downtilt angle, and the horizontal azimuth angle can only be controlled manually, which cannot truly realize remote control;

[0011] 2. The input interface of the existing two-dimensional electric adjustable antenna adopts the downtilt transmission system and is fixedly installed on the reflector. Then the RCU that controls the downtilt will rotate with the reflector. Passing through the bottom plate to connect with the downtilt transmission system requires a large area at the bottom of the antenna, and the engineering installation is difficult; the connecting cable of the RCU will also swing back and forth with the movement of the RCU. If there is a slight deviation in the cable binding, it may affect the Antenna horizontal azimuth movement;

[0013] ①Thicker and harder engineering cables increase the rotation resistance of the reflector, often causing the reflector to fail to turn normally, and the swing of the engineering cable will also affect the connection reliability of the electrical connector;

[0014] ②The force state of the engineering cable is relatively bad. It is directly connected with the reflector that needs to be rotated, and the external force will be directly transmitted to the reflector and the horizontal transmission system components, which is likely to cause serious damage;

[0015] 4. In order to ensure the stable horizontal rotation of the antenna reflector, the existing two-dimensional electric adjustable antenna will install the reflector into the frame with steel structure pillars. This design ensures the structural strength and the stable and reliable rotation of the reflector, but the product volume big, heavy

[0016] 5. The scale design of the existing two-dimensional electronically adjustable antenna read by naked eyes separates the downtilt scale and the horizontal angle scale, both of which are set at the bottom of the antenna bottom plate. The bottom of the antenna bottom plate is also equipped with antenna support steel structure, RCU and engineering cables. No convenient and intuitive reading angle

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