Antenna angle adjusting device and antenna

The antenna angle adjustment device automatically adjusts the antenna tilt angle, solving the problems of complex structure, heavy weight and high cost of multi-frequency electrically adjustable antennas, achieving lightweight and efficient production, and improving the adjustment accuracy and stability of the antenna.

CN223363386UActive Publication Date: 2025-09-19GUANGDONG SHENGLU TELECOMM
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Patent Information

Application Number
CN202422750369.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-09-19
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

Existing multi-frequency electrically steerable antennas have problems such as complex structure, heavy weight, high cost, and unstable performance when meeting the vertical scanning angle adjustment requirements of operators. In particular, signals between multiple frequency bands are prone to interference, resulting in low production efficiency.

Method used

The antenna angle adjustment device, including a pole, upper bracket assembly, drive module and control module, automatically adjusts the antenna tilt angle, reduces dependence on phase shifters and electrical downtilt adjustment modules, simplifies the internal structure, and improves adjustment accuracy and stability.

Benefits of technology

The antenna is lightweight, low-cost and highly efficient in production, the adjustment accuracy and stability of the antenna are improved, the production process is simplified, and the complexity and weight inside the antenna are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides an antenna angle adjusting device and an antenna, and belongs to the technical field of antennae, the antenna angle adjusting device comprises a holding pole, an upper support assembly, a third connecting piece, a driving module and a control module, the upper support assembly comprises a first connecting piece, a second connecting piece and a transmission piece, one end of the first connecting piece is connected with the holding pole, and the other end of the first connecting piece is connected with the driving module; the other end of the first connecting piece is rotationally connected with one end of the second connecting piece, the transmission piece is meshed with one end of the second connecting piece, and the other end of the second connecting piece is connected with the upper part of the antenna outer cover; the driving module is connected with the transmission part; one end of the third connecting piece is connected with the holding pole, and the other end of the third connecting piece is connected with the lower part of the antenna outer cover; the control module is connected with the driving module and used for controlling the driving module to work, the antenna is simple in structure, small in size, low in weight and low in cost, the adjustment precision of the vertical plane scanning angle of the antenna can be improved, and the performance stability and production efficiency of the antenna can be improved.
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Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna angle adjustment device and an antenna. Background Art

[0002] Currently, the continuous introduction of new standards and spectrum is forcing operators to pursue antenna devices that can support a wider spectrum, making multi-band electrically steerable antennas the preferred choice for base stations. Antennas incorporate multiple antenna arrays, and require the smallest possible frontal area and lightest weight. Consequently, miniaturization is a growing trend. This presents challenges: the array layouts across multiple frequency bands are compact. Especially for multi-band, multi-port antennas combining high and low frequencies, the number of electrical components such as phase shifters increases, the coaxial cable routing becomes increasingly complex, the electrical downtilt adjustment modules become larger, the various adapter and fastening structures become increasingly complex, the antenna weight increases, assembly efficiency decreases, performance stability deteriorates, and antenna costs increase. These significant changes pose significant challenges to the mass production and deployment of multi-band, multi-port electrically steerable antennas that meet the requirements of shared-site sharing.

[0003] To meet operators' vertical scanning angle requirements, existing multi-band electrically tilted antennas typically use phase shifters to achieve electrical downtilt adjustment from 0° to 10°, and then mechanical downtilt adjustment from 0° to 15° using an antenna mounting bracket. Combined, these two functions provide a downtilt adjustment range of 0° to 25°. The electrical downtilt adjustment via the phase shifters has an error of approximately 1°, while mechanical downtilt adjustment via the antenna mounting bracket requires manual operation on the tower, which is inconvenient and has an error of approximately 2°. Furthermore, the phase shifters must be connected to the electrical downtilt adjustment module via an adapter, requiring ample space within the antenna for the phase shifters, the electrical downtilt adjustment module, and various adapter and fastening structures. This makes it difficult to reduce the size and weight of the antenna. As the number of integrated frequency bands increases, the various electrical components, structural components, and bridging cables within the antenna are frequently intertwined and overlapped. This can easily cause interference between signals from different frequency bands, leading to performance degradation. Furthermore, the complex and compact layout can lead to unstable intermodulation. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide an antenna angle adjustment device and an antenna, which are not only simple in structure, small in size, low in weight and low in cost, but also can improve the adjustment accuracy and operational convenience of the vertical scanning angle of the antenna, as well as improve the stability of the antenna performance and production efficiency.

[0005] To achieve the above-mentioned objectives, in the first aspect, an embodiment of the present application proposes an antenna angle adjustment device, including: a holding pole, an upper bracket assembly, a third connecting member, a driving module and a control module, the upper bracket assembly including: a first connecting member, a second connecting member and a transmission member, one end of the first connecting member is connected to the holding pole, the other end of the first connecting member is rotatably connected to one end of the second connecting member, the transmission member is meshedly connected to one end of the second connecting member, and the other end of the second connecting member is connected to the upper part of the antenna cover; the driving module is connected to the transmission member for driving the transmission member to rotate; one end of the third connecting member is connected to the holding pole, and the other end of the third connecting member is connected to the lower part of the antenna cover; the control module is connected to the driving module for controlling the operation of the driving module.

[0006] An antenna angle adjustment device provided according to an embodiment of the utility model has at least the following beneficial effects: a driving module receives an angle adjustment command issued by a control module, and then drives the transmission member to drive the second connecting member to rotate clockwise or counterclockwise to increase or decrease the tilt angle of the antenna. Compared with the solution of adjusting the mechanical tilt angle by manually climbing the tower, the angle adjustment accuracy is greatly improved, thereby improving the stability of the antenna performance. In addition, the transmission member is engaged with one end of the second connecting member, which can better transform the torque to support antennas of different weights, and the adjustable angle range is larger. Indirectly, since the adjustable angle range of the antenna angle adjustment device is larger, there is no need to deploy phase shifters, electrical downtilt adjustment modules and various complex switching and fastening structures inside the antenna. The overall structure of the antenna becomes more compact, the antenna weight is lower, the cost is lower, and the production efficiency is higher.

[0007] In some embodiments, the transmission member includes a first cross bar, a first gear and a second gear, the first gear and the second gear are respectively fixed at both ends of the first cross bar, the first gear and the second gear are both meshed and connected with one end of the second connecting member, and the driving module is connected to the first cross bar.

[0008] In some embodiments, the second connecting member includes a first connecting arm and a second connecting arm, the second connecting arm and the second connecting arm are symmetrically arranged, one end of the first connecting arm and one end of the second connecting arm are both provided with a semicircular gear structure, and a first through hole is provided in the middle of the two semicircular gear structures. The other end of the first connecting member is fixed in the two first through holes through a second cross bar, and the transmission member is respectively engaged with the two semicircular gear structures.

[0009] In some embodiments, the second connecting member further includes a first fixing member, one end of the first fixing member is connected to the antenna cover, and the other end of the first connecting arm and the other end of the second connecting arm are both rotatably connected to the other end of the first fixing member.

[0010] In some embodiments, a second fixing member and a third fixing member are further included, and one end of the second fixing member and one end of the third fixing member are both provided with a second through hole adapted to the second cross bar, and the second fixing member and the third fixing member are fixed to the second cross bar through two second through holes, and the transmission member is respectively connected to the other end of the second fixing member and the other end of the third fixing member.

[0011] In the second aspect, an embodiment of the present application proposes an antenna, comprising an antenna cover, two end covers, multiple high-frequency radiating units, a high-frequency feed network board, multiple low-frequency radiating units, a low-frequency feed network board, a reflector, multiple connectors, and an antenna angle adjustment device as described in any one of the embodiments of the first aspect, wherein the high-frequency feed network board and the low-frequency feed network board are both arranged on the front of the reflector, the multiple high-frequency radiating units are all arranged above the high-frequency feed network board, and the multiple low-frequency radiating units are all arranged above the low-frequency feed network board. The antenna cover covers the multiple high-frequency radiating units, the high-frequency feed network board, the multiple low-frequency radiating units, the low-frequency feed network board and the reflector, the end covers are provided with multiple connectors, and the end covers are respectively arranged on two opposite sides of the antenna cover, and the antenna angle adjustment device is fixedly connected to the back of the antenna cover.

[0012] An antenna provided by an embodiment of the present invention has at least the following beneficial effects: because the antenna angle adjustment device can automatically adjust the tilt angle with high adjustment accuracy, and the adjustable angle of the antenna angle adjustment device is large, there is no need to deploy other electrical components such as phase shifters between the high-frequency feed network board, the low-frequency feed network board and the connector, and further, there is no need to deploy an electrical downtilt angle adjustment module and various complex switching and fastening structures. The internal structure of the antenna is extremely simple, and the space behind the reflector can be greatly compressed, which not only reduces costs but also improves the stability of antenna operation and production efficiency.

[0013] In some embodiments, the high-frequency radiation unit is integrated with the high-frequency feed network board to form a high-frequency antenna subarray module, and the low-frequency radiation unit is integrated with the low-frequency feed network board to form a low-frequency antenna subarray module.

[0014] In some embodiments, the number of the high-frequency antenna subarray modules is 4, and the number of each of the low-frequency antenna subarray modules is 2.

[0015] In some embodiments, one low-frequency antenna sub-array module is embedded in every two high-frequency antenna sub-array modules.

[0016] In some embodiments, the operating frequency band of the low-frequency antenna subarray module is 690-960 MHz, and the operating frequency band of the high-frequency antenna subarray module is 1690-2690 MHz. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of an antenna angle adjustment device provided by an embodiment of the present utility model, tilted at a first angle;

[0020] Figure 2 This is a schematic diagram of the overall structure of an antenna angle adjustment device provided by an embodiment of the present utility model, tilted at a second angle;

[0021] Figure 3 This is a structural diagram of an upper bracket assembly in an antenna angle adjustment device provided by an embodiment of the present utility model;

[0022] Figure 4 This is a structural diagram of a third connecting member in an antenna angle adjustment device provided by an embodiment of the present utility model;

[0023] Figure 5 It is a structural diagram of an antenna provided by an embodiment of the present utility model. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] To meet operators' vertical scanning angle requirements, existing multi-band electrically tilted antennas typically use phase shifters to achieve electrical downtilt adjustment from 0° to 10°, and then mechanical downtilt adjustment from 0° to 15° using an antenna mounting bracket. Combined, these two functions provide a downtilt adjustment range of 0° to 25°. The electrical downtilt adjustment via the phase shifters has an error of approximately 1°, while mechanical downtilt adjustment via the antenna mounting bracket requires manual operation on the tower, which is inconvenient and has an error of approximately 2°. Furthermore, the phase shifters must be connected to the electrical downtilt adjustment module via an adapter, requiring ample space within the antenna for the phase shifters, the electrical downtilt adjustment module, and various adapter and fastening structures. This makes it difficult to reduce the size and weight of the antenna. As the number of integrated frequency bands increases, the various electrical components, structural components, and bridging cables within the antenna are frequently intertwined and overlapped. This can easily cause interference between signals from different frequency bands, leading to performance degradation. Furthermore, the complex and compact layout can lead to unstable intermodulation.

[0028] Based on this, the embodiment of the present invention provides an antenna angle adjustment device and an antenna, which not only have a simple structure, small size, low weight and low cost, but also can improve the adjustment accuracy and operational convenience of the vertical scanning angle of the antenna, as well as improve the stability of the antenna performance and production efficiency.

[0029] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings.

[0030] Reference Figure 1 、 Figure 2 、 Figure 3 In a first aspect, the present invention provides an antenna angle adjustment device, comprising: a holding pole 100, an upper bracket assembly 2000, a driving module 400, a third connecting member 300 and a control module; the upper bracket assembly 2000 comprises: a first connecting member 2100, a second connecting member 2200 and a transmission member 2300, one end of the first connecting member 2100 is connected to the holding pole 100, the other end of the first connecting member 2100 is rotatably connected to one end of the second connecting member 2200, the transmission member 2300 is meshedly connected to one end of the second connecting member 2200, and the other end of the second connecting member 2200 is connected to the upper part of the antenna cover 6100; the driving module 400 is connected to the transmission member 2300 for driving the transmission member 2300 to rotate; one end of the third connecting member 300 is connected to the holding pole 100, and the other end of the third connecting member 300 is connected to the lower part of the antenna cover 6100; the control module is connected to the driving module 400 for controlling the operation of the driving module 400.

[0031] According to an antenna angle adjustment device provided by an embodiment of the present invention, the driving module 400 receives the angle adjustment command issued by the control module, and then drives the transmission member 2300 to drive the second connecting member 2200 to rotate clockwise or counterclockwise to increase or decrease the tilt angle of the antenna. Compared with the solution of adjusting the mechanical tilt angle by manually climbing the tower, the angle adjustment accuracy is greatly improved, thereby improving the stability of the antenna performance. In addition, the transmission member 2300 is engaged with one end of the second connecting member 2200, which can better transform the torque to support antennas of different weights, and the adjustable angle range is larger. Indirectly, since the adjustable angle range of the antenna angle adjustment device is larger, there is no need to deploy phase shifters, electrical downtilt adjustment modules and various complex switching and fastening structures inside the antenna. The overall structure of the antenna becomes more compact, the antenna weight is lower, the cost is lower, and the production efficiency is higher.

[0032] Preferably, under the cooperation between the upper bracket assembly 2000 and the third connecting member 300, referring to Figure 1 、 Figure 2 , which supports 0-30° downtilt adjustment of the antenna.

[0033] It should be noted that the driving module 400 is provided with two interfaces, which are respectively connected to the control end and the power supply end of the control module. The driving module 400 can execute the angle adjustment command issued by the control module. When the angle adjustment action is completed, the driving module 400 sends a feedback signal to the module. The feedback signal includes the angle information of the antenna, which is beneficial for the user to monitor the adjustment angle in real time and provide guarantee for the stable operation of the antenna equipment.

[0034] It should be noted that the control module can be set on the base station tower or the antenna supporting room. The user can control the upper bracket assembly 2000 and the third connecting member 300 to automatically adjust the angle on the ground. There is no need to go up the tower to adjust the mechanical tilt angle, and the angle adjustment accuracy is greatly improved.

[0035] In some embodiments, reference Figure 1 、 Figure 2 、 Figure 3 , and also includes two bolt clamps 600, which are respectively fixed to the holding pole 100, wherein one bolt clamp 600 is rotatably connected to one end of the first connecting member 2100 through the third cross bar 30, and the other bolt clamp 600 is rotatably connected to one end of the third connecting member 300 through the fourth cross bar 40.

[0036] In some embodiments, the transmission member 2300 includes a first cross bar 10, a first gear 2310 and a second gear 2320. The first gear 2310 and the second gear 2320 are respectively fixed at the two ends of the first cross bar 10. The first gear 2310 and the second gear 2320 are both meshed and connected with one end of the second connecting member 2200, and the driving module 400 is connected to the first cross bar 10.

[0037] It can be understood that when the driving module 400 receives the angle adjustment signal sent by the control module, since the driving module 400 is connected to the first cross bar 10, the driving module 400 controls the first cross bar 10 of the transmission member 2300 to rotate clockwise or counterclockwise, thereby driving the first gear 2310 and the second gear 2320 to rotate. Furthermore, since the first gear 2310 and the second gear 2320 are both engaged with one end of the second connecting member 2200, when the first gear 2310 and the second gear 2320 rotate, they will drive the second connecting member 2200 and the first connecting member 2100 to rotate, and as the upper bracket assembly 2000 is extended and retracted, the third connecting member 300 also rotates forward and reverse, thereby realizing the downtilt angle adjustment of the antenna.

[0038] In some embodiments, reference Figure 3 The second connecting member 2200 includes a first connecting arm 2210 and a second connecting arm 2220. The second connecting arm 2220 and the second connecting arm 2220 are symmetrically arranged. One end of the first connecting arm 2210 and one end of the second connecting arm 2220 are both provided with a semicircular gear structure 2201. A first through hole is provided in the middle of the two semicircular gear structures 2201. The other end of the first connecting member 2100 is fixed in the two first through holes through the second cross bar 20, and the transmission member 2300 is respectively engaged with the two semicircular gear structures 2201.

[0039] It should be noted that the first connecting member 2100 includes a third connecting arm 2110 and a fourth connecting arm 2120, and the third connecting arm 2110 and the fourth connecting arm 2120 are symmetrically arranged. One end of the third connecting arm 2110 and one end of the fourth connecting arm 2120 are both rotatably connected to the bolt clamp 600, and the other end of the third connecting arm 2110 and the other end of the fourth connecting arm 2120 are both provided with a third through hole adapted to the second cross bar 20, and the second cross bar 20 passes through the two first through holes and the two third through holes to enable the first connecting member 2100 and the second connecting member 2200 to be rotatably connected.

[0040] In some embodiments, the first gear 2310 and the second gear 2320 are respectively meshed with the two semicircular gear structures 2201 in the second connecting member 2200 .

[0041] In some embodiments, reference Figure 1The second connecting member 2200 also includes a first fixing member 2230, one end of the first fixing member 2230 is connected to the antenna cover 6100, and the other end of the first connecting arm 2210 and the other end of the second connecting arm 2220 are both rotatably connected to the other end of the first fixing member 2230.

[0042] It should be noted that, referring to Figure 3 The other end of the first connecting arm 2210 and the other end of the second connecting arm 2220 are rotatably connected to the other end of the first fixing member 2230 through the fifth cross bar 50.

[0043] In some embodiments, a second fixing member 2400 and a third fixing member 2500 are also included. One end of the second fixing member 2400 and one end of the third fixing member 2500 are both provided with second through holes adapted to the second cross bar 20. The second fixing member 2400 and the third fixing member 2500 are fixed to the second cross bar 20 through the two second through holes, and the transmission member 2300 is respectively connected to the other end of the second fixing member 2400 and the other end of the third fixing member 2500.

[0044] It should be noted that the driving module 400 is fixed to the other end of the third fixing member 2500, and the first cross bar 10 passes through the other end of the third fixing member 2500 and is connected to the driving module 400. Under the coordinated action of the second fixing member 2400 and the third fixing member 2500, the transmission member 2300 can maintain a stable engagement connection with the other end of the second connecting member 2200, thereby improving the accuracy of the antenna downtilt angle adjustment.

[0045] Secondly, refer to Figure 1 、 Figure 5 The embodiment of the present application provides an antenna, comprising an antenna housing 6100, two end caps 6200, a plurality of high-frequency radiating units 6300, a high-frequency feed network board 6400, a plurality of low-frequency radiating units 6500, a low-frequency feed network board 6600, a reflector 6700, a plurality of connectors 6800, and an antenna angle adjustment device as described in any one of the embodiments of the first aspect. The high-frequency feed network board 6400 and the low-frequency feed network board 6600 are both arranged on the front of the reflector 6700, the plurality of high-frequency radiating units 6300 are all arranged above the high-frequency feed network board 6400, and the plurality of low-frequency radiating units 6500 are all arranged above the low-frequency feed network board 6600. The antenna housing 6100 covers the plurality of high-frequency radiating units 6300, the high-frequency feed network board 6400, the plurality of low-frequency radiating units 6500, the low-frequency feed network board 6600, and the reflector 6700. A plurality of connectors 6800 are provided in the end cover 6200 , and the end covers 6200 are respectively provided on two opposite side surfaces of the antenna cover 6100 , and the antenna angle adjustment device is fixedly connected to the back surface of the antenna cover 6100 .

[0046] According to an embodiment of the present invention, an antenna provided by an antenna angle adjustment device can automatically adjust the tilt angle with high adjustment accuracy. In addition, the antenna angle adjustment device has a wide adjustable angle. Therefore, there is no need to deploy other electrical components such as phase shifters between the high-frequency feed network board 6400, the low-frequency feed network board 6600, and the connector 6800. Furthermore, there is no need to deploy an electrical downtilt adjustment module and various complex transition and fastening structures. The internal structure of the antenna is extremely simple, and the space behind the reflector 6700 can be significantly reduced, which not only reduces costs but also improves the stability of antenna operation and production efficiency.

[0047] In some embodiments, the high-frequency radiation unit 6300 is integrated with the high-frequency feed network board 6400 to form a high-frequency antenna subarray module, and the low-frequency radiation unit 6500 is integrated with the low-frequency feed network board 6600 to form a low-frequency antenna subarray module.

[0048] It is understandable that both the high-frequency antenna subarray module and the low-frequency antenna subarray module can be prefabricated and then deployed on the front of the reflector 6700. The modular design of the antenna subarray significantly improves the efficiency of antenna production and assembly.

[0049] In some embodiments, the number of high-frequency antenna subarray modules is 4, and the number of each low-frequency antenna subarray module is 2.

[0050] In some embodiments, a low-frequency antenna sub-array module is embedded in every two high-frequency antenna sub-array modules.

[0051] It is understandable that since a low-frequency antenna subarray module is embedded in every two high-frequency antenna subarray modules, the low-frequency band supports the 4T4R standard and the high-frequency band supports the 8T8R standard. The multi-frequency and multi-port antenna subarray integration can support different channel capacity requirements in various usage scenarios.

[0052] In some embodiments, the operating frequency band of the low-frequency antenna subarray module is 690-960 MHz, and the operating frequency band of the high-frequency antenna subarray module is 1690-2690 MHz.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An antenna angle adjustment device, characterized in that: include: Holding pole; an upper bracket assembly, the upper bracket assembly comprising: a first connecting member, a second connecting member, and a transmission member, wherein one end of the first connecting member is connected to the holding pole, the other end of the first connecting member is rotatably connected to one end of the second connecting member, the transmission member is meshedly connected to one end of the second connecting member, and the other end of the second connecting member is connected to the upper portion of the antenna cover; a driving module, the driving module being connected to the transmission member and being used to drive the transmission member to rotate; a third connecting member, one end of which is connected to the holding pole, and the other end of which is connected to the lower portion of the antenna cover; A control module is connected to the driving module and is used to control the operation of the driving module.

2. The antenna angle adjustment device according to claim 1, characterized in that: The transmission member includes a first cross bar, a first gear and a second gear. The first gear and the second gear are respectively fixed to the two ends of the first cross bar. The first gear and the second gear are both meshed and connected with one end of the second connecting member, and the driving module is connected to the first cross bar.

3. The antenna angle adjustment device according to claim 1, wherein: The second connecting member includes a first connecting arm and a second connecting arm, and the second connecting arm and the second connecting arm are symmetrically arranged. One end of the first connecting arm and one end of the second connecting arm are both provided with a semicircular gear structure, and a first through hole is provided in the middle of the two semicircular gear structures. The other end of the first connecting member is fixed in the two first through holes through a second cross bar, and the transmission member is respectively engaged with the two semicircular gear structures.

4. The antenna angle adjustment device according to claim 3, characterized in that: The second connecting member further includes a first fixing member, one end of the first fixing member is connected to the antenna cover, and the other end of the first connecting arm and the other end of the second connecting arm are both rotatably connected to the other end of the first fixing member.

5. The antenna angle adjustment device according to claim 3, characterized in that: It also includes a second fixing member and a third fixing member, one end of the second fixing member and one end of the third fixing member are both provided with second through holes adapted to the second cross bar, one end of the second fixing member and one end of the third fixing member are fixed to the second cross bar through two second through holes, and the transmission member is respectively connected to the other end of the second fixing member and the other end of the third fixing member.

6. An antenna, characterized in that: The antenna comprises an antenna housing, two end covers, a plurality of high-frequency radiating units, a high-frequency feed network board, a plurality of low-frequency radiating units, a low-frequency feed network board, a reflector, a plurality of connectors, and the antenna angle adjustment device according to any one of claims 1 to 5, wherein the high-frequency feed network board and the low-frequency feed network board are both arranged on the front side of the reflector, the plurality of high-frequency radiating units are all arranged above the high-frequency feed network board, and the plurality of low-frequency radiating units are all arranged above the low-frequency feed network board; the antenna housing covers the plurality of high-frequency radiating units, the high-frequency feed network board, the plurality of low-frequency radiating units, the low-frequency feed network board, and the reflector; the plurality of connectors are provided in the end covers; the end covers are respectively arranged on two opposite side surfaces of the antenna housing; and the antenna angle adjustment device is fixedly connected to the back side of the antenna housing.

7. The antenna according to claim 6, characterized in that The high-frequency radiation unit is integrated with the high-frequency feed network board to form a high-frequency antenna subarray module, and the low-frequency radiation unit is integrated with the low-frequency feed network board to form a low-frequency antenna subarray module.

8. The antenna according to claim 7, characterized in that The number of the high-frequency antenna subarray modules is 4, and the number of each of the low-frequency antenna subarray modules is 2.

9. The antenna according to claim 8, characterized in that One low-frequency antenna sub-array module is embedded in every two high-frequency antenna sub-array modules.

10. The antenna according to claim 7, wherein: The operating frequency band of the low-frequency antenna subarray module is 690~960MHz, and the operating frequency band of the high-frequency antenna subarray module is 1690~2690MHz.