Pitch angle adjusting structure of electrically tunable antenna
By using the rotating and adjusting structure between the base station antenna and the mast, the problems of mechanical adjustment requiring climbing the tower and electrical adjustment increasing the load on the tower top are solved, thus achieving convenient pitch angle adjustment and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, mechanically adjustable antennas require tower climbing operations, which are inefficient and pose safety hazards, while electrically adjustable antennas have a complex structure that increases the load on the tower top and maintenance costs.
The structure employs a rotating and adjusting section between the pole and the base station antenna. The rotating section fixes the bottom of the base station, while the adjusting section adjusts the relative position. The pitch angle is adjusted using a rotating motor and a self-locking mechanism, thus avoiding increasing the burden on the antenna.
It enables convenient pitch angle adjustment, avoids additional burden, improves maintenance efficiency, and reduces equipment procurement and maintenance costs.
Smart Images
Figure CN224053408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrically adjustable antenna technology for mobile communication base stations, and specifically to an electrically adjustable antenna pitch angle adjustment structure. Background Technology
[0002] In the field of mobile communication base station antennas, the mainstream technologies are currently divided into two modes: mechanical adjustment and electronic adjustment. Mechanically adjustable antennas adjust the pitch angle of the antenna support physically, causing the entire antenna element to tilt physically, thereby changing the beam downtilt angle. This approach has the advantages of simple structure and low cost, but it can cause beam distortion and gain loss. Electronically adjustable antennas, on the other hand, use a built-in transmission mechanism to drive phase shifters, adjusting the electrical downtilt angle using the principle of phase superposition. While this allows for remote control and better beam quality, it requires a complex electromechanical linkage system, involving numerous phase shifter components and transmission devices, resulting in a significant increase in antenna size and weight. Both technologies require the installation of a matching drive motor or mechanical adjustment device on the tower.
[0003] The two traditional solutions presented by the above have significant engineering contradictions: mechanically adjustable antennas require technicians to climb the tower for each adjustment, resulting in low maintenance efficiency and safety hazards; the "beam breathing effect" caused by their physical tilt degrades signal quality for edge users. While electrically adjustable antennas support remote control, their complex internal structure leads to decreased reliability; phase shifter insertion loss can reduce gain by 1-2 dB; and the transmission gear set suffers from mechanical wear. More importantly, both solutions require the deployment of adjustment mechanisms on the tower, increasing the load on the tower top and generating additional equipment procurement and maintenance costs. Utility Model Content
[0004] Therefore, the purpose of this application is to solve the technical problem in the prior art that deploying regulating mechanisms on towers increases the tower top load and generates additional equipment procurement and maintenance costs.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] An electrically adjustable antenna elevation angle adjustment structure includes a mast and a base station antenna, and further includes several adjustment devices. The adjustment devices include a rotating part and an adjusting part. The rotating part is located at the bottom of the base station and is used for rotating the bottom of the base station antenna. The adjusting part is located at the middle position in the height direction of the base station antenna and is used to adjust the relative position between the mast and the base station antenna. The two ends of the adjusting part are respectively rotatably fixed on the mast and the base station antenna.
[0007] Preferably, the holding pole is a vertical shaft, and the holding pole is provided with two fixing supports, and the two fixing supports are used for fixing the rotating part and the adjusting part respectively.
[0008] Preferably, the two fixing supports each comprise a hollow pipe provided with an arc-shaped groove on one side, and the two hollow pipes are fixed by a fixing bolt.
[0009] Preferably, the adjusting part comprises an adjusting shaft, a rotating motor and two supporting arms, the two supporting arms are rotatably arranged on the holding pole and the base station antenna respectively, the two supporting arms are connected by the rotating motor, and the two supporting arms are rotatable by the rotating motor.
[0010] Preferably, the adjusting device further comprises a control box arranged on one side of the rotating part.
[0011] Preferably, the top of the base station antenna is provided with an antenna attitude instrument.
[0012] Preferably, the inner wall of the groove is provided with a sawtooth arranged along the arc direction of the groove.
[0013] Preferably, the rotating motor is provided with a self-locking mechanism.
[0014] Compared with the prior art, the application has the following beneficial effects:
[0015] The application fixes the position of the holding pole and the bottom of the base station antenna by the rotating part, and adjusts the relative distance between the holding pole and the base station antenna by the adjusting part, so that the angle between the holding pole and the base station antenna is adjusted, the above-mentioned adjusting mode is more convenient to operate, and the additional burden of the base station antenna is not increased. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the electrically-adjusted antenna pitch angle adjusting structure.
[0017] Figure 2 It is another whole structure schematic view of the electrically-adjusted antenna pitch angle adjusting structure.
[0018] In the figure, 1 is a holding pole; 11 is a fixing support; 111 is a hollow pipe; 112 is a groove; 113 is a sawtooth; 114 is a fixing bolt; 2 is an adjusting device; 21 is a rotating part; 211 is a U-shaped rod; 212 is a rotating shaft; 22 is an adjusting part; 221 is an adjusting shaft; 222 is a rotating motor; 223 is a supporting arm; 23 is a control box; 3 is a base station antenna; and 31 is an antenna attitude instrument. DETAILED DESCRIPTION
[0019] The utility model will be further explained in detail below in combination with the drawings and embodiments.
[0020] Please refer to Figure 1 and Figure 2 A kind of electrically adjustable antenna pitch angle adjusting structure, including pole 1, adjusting device 2 and base station antenna 3, wherein, the pole 1 is vertically arranged, the adjusting device 2 is located between the pole 1 and the base station antenna 3, for adjusting the angle of the base station antenna 3.
[0021] Please refer to Figure 1 In an embodiment, the pole 1 is vertical shaft, the pole 1 is provided with fixed support 11, the fixed support 11 is provided with two, two fixed support 11 includes symmetrically arranged hollow tube 111, the hollow tube 111 is provided with arc groove 112 on opposite side, two recess 112 inner wall is supported on the pole 1, in an embodiment, to ensure that hollow tube 111 can be supported on hollow tube 111, the recess 112 inner wall is provided with sawtooth 113, the sawtooth 113 is arrayed along the arc direction of the recess 112. Two symmetrically arranged hollow tubes 111 are fixedly arranged by fixed bolt 114. One of the fixed support 11 is located at the bottom of pole 1, another fixed support 11 is located at the middle segment position of pole 1, the position of the fixed support can be adjusted according to demand.
[0022] Please refer to Figure 1 and Figure 2 The adjusting device 2 is provided with two parts, two parts the adjusting device 2 includes symmetrically arranged U-shaped rod 211, two U-shaped rods 211 on the same adjusting device 2 are oppositely arranged, one of the U-shaped rod 211 on the same adjusting device 2 is fixed on hollow tube 111, and another U-shaped rod 211 is fixed on base station antenna 3.
[0023] In an embodiment, two adjusting devices 2 are respectively rotating part 21 and adjusting part 22, wherein, the rotating part 21 is fixedly arranged with the bottom fixed support 11, the adjusting part 22 is connected with another fixed support 11, two U-shaped rods 211 on the rotating part 21 are connected by rotating shaft 212, so that two U-shaped rods 211 can rotate along the circumferential direction of the rotating shaft 212.
[0024] The adjusting part 22 comprises adjusting shafts 221, rotating motors 222 and supporting arms 223, the adjusting shafts 221 are provided with two, the two adjusting shafts 221 are respectively located at the opening ends of the U-shaped rods 211, the supporting arms 223 are provided with two, the two supporting arms 223 are respectively rotationally arranged with the two U-shaped rods 211, the two supporting arms 223 are connected through the rotating motor 222, and the two supporting arms 223 are rotationally driven through the rotating motor 222. In an embodiment, the rotating motor 222 is internally provided with a self-locking mechanism (not shown in the figure), and the self-locking mechanism is used to keep the constant angle of the antenna.
[0025] In an embodiment, the adjusting device 2 further comprises a control box 23, the control box 23 is fixed on the bottom fixing support 11, and the control box 23 is used to receive an angle signal and control the rotation of the rotating motor 222 to adjust the angle of the base station antenna 3.
[0026] The base station antenna 3 is fixedly arranged with the U-shaped rod 211, and the top of the base station antenna 3 is provided with an antenna posture instrument 31. Through the arrangement of the antenna posture instrument 31, the antenna posture information can be input to the control box 23, and the control box 23 can drive the motor at the supporting arm 223 to adjust the angle in real time.
[0027] The rotating part comprises a mounting table, a rotating block, a driving motor, a telescopic mechanism and a clutch, the rotating block is rotationally arranged on the fixing support, the driving motor is fixed on the mounting table, the axis direction of the driving motor is perpendicular to the telescopic direction of the telescopic mechanism, and the driving motor drives the telescopic mechanism to drive the clutch to approach or move away from the rotating block. By approaching or moving away from the rotating block through the clutch, the rotating part can drive the relative rotation of the holding pole and the base station antenna.
[0028] The adjusting part comprises a horizontal mounting table, the horizontal mounting table is provided with a first motor, the first mounting table is used to be fixed on the fixing support on one side of the holding pole mechanism, and the mounting table is further provided with a matching worm and a worm gear, the worm is driven by the first motor to drive the rotation of the worm gear, the worm gear is provided with an output shaft which rotates synchronously, and the output shaft is fixedly arranged with the fixing support of the base station antenna. The worm is driven by the first motor to rotate and displace the worm gear, so that the relative position between the holding pole and the base station antenna is adjusted. Since the bottom is connected through the rotating part, only the angle of the two can be adjusted during the distance adjustment, and the distance between the two will not be affected.
[0029] The application provides an electrically-adjusted antenna pitch angle adjusting structure. A rotating motor 222 is installed between two supporting arms 223. The rotating motor 222 drives the supporting arms 223 to adjust the pitch angle through rotation. Meanwhile, a high-precision antenna posture instrument 31 senses the antenna angle and is linked with the rotating motor 222 to adjust the antenna posture.
Claims
1. An electrical tilt antenna pitch adjustment structure comprising a pole and a base station antenna, characterized by: It also includes several adjustment devices, each including a rotating part and an adjusting part. The rotating part is located at the bottom of the base station and is used to rotate the bottom of the base station antenna. The adjusting part is located at the middle position in the height direction of the base station antenna and is used to adjust the relative position between the mast and the base station antenna. The two ends of the adjusting part are respectively rotatably fixed on the mast and the base station antenna.
2. The electrical tilt antenna elevation angle adjustment structure of claim 1, wherein: The support rod is a vertically arranged shaft, and a fixed support is provided on the support rod. There are two fixed supports, which are used to fix the rotating part and the adjusting part respectively.
3. The electrical tilt antenna elevation angle adjustment structure of claim 2, wherein: The two fixed supports each include symmetrically arranged hollow tubes, with an arc-shaped groove on one side of each hollow tube. The inner walls of the two grooves abut against the support rod, and the two symmetrically arranged hollow tubes are fixedly installed by fixing bolts.
4. The electrical tilt antenna elevation angle adjustment structure of claim 3, wherein: The adjustment unit includes an adjustment shaft, a rotating motor, and two support arms. The two support arms are rotatably mounted on the mast and the base station antenna, respectively. The two support arms are connected by a rotating motor, and the two support arms achieve corresponding rotation through the rotating motor.
5. The electrical tilt antenna elevation angle adjustment structure of claim 4, wherein: The adjustment device also includes a control box, which is disposed on one side of the rotating part.
6. The electrical tilt antenna elevation angle adjustment structure of claim 5, wherein: An antenna attitude gauge is installed on the top of the base station antenna.
7. The electrical tilt antenna elevation angle adjustment structure of claim 6, wherein: The inner wall of the groove is provided with serrations, which are arranged in an array along the arc direction of the groove. 8.The electrically adjustable antenna pitch angle adjustment structure of claim 7, wherein: The rotating motor is equipped with a self-locking mechanism.
9. The electrical tilt antenna elevation angle adjustment structure of claim 4, wherein: The rotating part includes a mounting platform, a rotating block, a drive motor, a telescopic mechanism, and a clutch. The rotating block is rotatably mounted on the fixed support, and the drive motor is fixed on the mounting platform. The axis of the drive motor is perpendicular to the telescopic direction of the telescopic mechanism. The drive motor drives the telescopic mechanism to move the clutch closer to or away from the rotating block.
10. The electrical tilt antenna elevation angle adjustment structure of claim 9, wherein: The adjustment unit includes a horizontal mounting platform, on which a first motor is mounted. The horizontal mounting platform is fixed to a fixed support on one side of the pole-mounting mechanism. The mounting platform is also provided with a matching worm gear and worm. The worm is driven by the first motor to drive the worm gear to rotate. The worm gear is provided with an output shaft that rotates synchronously with it. The output shaft is fixedly mounted to a fixed support on the base station antenna.