Base station antenna
By designing adjustable movable strips and transmission mechanisms in the base station antenna, adjusting the radiation unit area width of the reflector plate, the interference problem caused by the fixed horizontal lobe width in the prior art is solved, and the quality of network communication is improved.
Patent Information
- Application Number
- CN202323446351.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-18
AI Technical Summary
The horizontal lobe width of the existing base station antenna is fixed, which makes it easy to cause interference during network coverage and affects communication quality.
A base station antenna is designed to adjust the distance between them through the movable strips and transmission mechanisms on both sides of the reflector plate to adapt to the horizontal lobe width requirements in different scenarios, including the reflector plate, movable strips, transmission mechanisms and driving mechanisms, and use limit positions The column and the sliding assembly realize the opposite or opposite movement of the movable strip, adjusting the area width of the radiation unit.
It effectively improves the antenna coverage effect, improves network communication quality, adapts to the horizontal lobe width requirements of different application scenarios, reduces interference, and improves communication quality.
Smart Images
Figure CN222320487U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of antenna technology, and in particular to a base station antenna. Background Art
[0002] In the engineering design of mobile communication networks, it is necessary to reasonably select base station antennas with different horizontal lobe widths based on actual conditions such as network coverage requirements, traffic distribution, anti-interference requirements, and network service quality.
[0003] However, the horizontal lobe width of the base station antenna in the related art is a fixed value, which makes it easy to cause interference during network coverage, thereby affecting the communication quality. Summary of the invention
[0004] Based on this, a base station antenna is provided to solve the problem of how to improve communication quality.
[0005] The present application provides a base station antenna, comprising:
[0006] A reflective plate, wherein two sides of the reflective plate are respectively connected with a first movable bar and a second movable bar;
[0007] a plurality of radiation units, disposed on the reflection plate, the radiation units being arranged at intervals along the length direction of the reflection plate and being located between the first movable bar and the second movable bar; and
[0008] A transmission mechanism is connected to the first movable bar and the second movable bar, and is used to drive the first movable bar and the second movable bar to move toward or away from each other to adjust the distance between the first movable bar and the second movable bar.
[0009] In one embodiment, the first movable bar and the second movable bar are each provided with a plurality of adjustment holes, the length direction of the adjustment holes is perpendicular to the length direction of the reflective plate, and a limiting column matching the plurality of adjustment holes is connected to the reflective plate, and the limiting column is used to limit the movement of the first movable bar and the second movable bar along the length direction of the reflective plate.
[0010] In one embodiment, the first movable bar and the second movable bar are both slidably connected to the reflective plate via a sliding assembly.
[0011] In one embodiment, the sliding assembly includes a sliding rail, a first slider and a second slider, the sliding rail is perpendicular to the length direction of the reflective plate, the first slider and the second slider are both slidably connected to the sliding rail, the first movable bar is connected to the first slider, and the second movable bar is connected to the second slider.
[0012] In one embodiment, the transmission mechanism includes a push-pull rod, a first connecting rod and a second connecting rod. The push-pull rod is slidably connected to the reflective plate and is perpendicular to the slide rail. The two ends of the first connecting rod are respectively hinged to the push-pull rod and the first slider, and the two ends of the second connecting rod are respectively hinged to the push-pull rod and the second slider. When the push-pull rod slides relative to the reflective plate, the push-pull rod drives the first slider and the second slider to move closer to or away from each other via the first connecting rod and the second connecting rod, so as to adjust the distance between the first movable bar and the second movable bar.
[0013] In one embodiment, the first connecting rod and the second connecting rod have the same length and the same angle with the push-pull rod.
[0014] In one of the embodiments, a driving mechanism is further included, and the driving mechanism is used to drive the push-pull rod to slide relative to the reflective plate.
[0015] In one embodiment, the driving mechanism includes a support frame, a screw, a nut and a driving member, the support frame is connected to the reflective plate, the screw is rotatably connected to the support frame, the screw is parallel to the push-pull rod, the nut is threadedly connected to the screw, the nut is connected to the push-pull rod, and the driving member is used to drive the screw to rotate relative to the support frame, so that the screw drives the push-pull rod to slide relative to the reflective plate through the nut.
[0016] In one embodiment, the driving mechanism includes a limiter connected to the screw rod and used to limit the movement stroke of the nut along the screw rod.
[0017] In one embodiment, the first movable bar and the second movable bar are both L-shaped aluminum plates, and the first movable bar and the second movable bar are respectively connected to the first sliding block and the second sliding block through a connecting piece.
[0018] In the above-mentioned base station antenna, the first movable bar and the second movable bar are respectively connected to the two sides of the reflector, and the radiation units are arranged at intervals along the length direction of the reflector and are located between the first movable bar and the second movable bar. The distance between the first movable bar and the second movable bar is adjusted by a transmission mechanism to adapt to the requirements of the horizontal lobe width in different scenarios, thereby improving the antenna coverage effect and enhancing the network quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 This is a three-dimensional diagram of the base station antenna of the present application.
[0021] Figure 2 for Figure 1 A schematic diagram of an enlarged local structure of the circled portion of the base station antenna is shown.
[0022] Figure 3 This is a schematic structural diagram of the base station antenna of the present application when the limiting column is located at the extreme position of one end of the adjustment hole.
[0023] Figure 4 This is a schematic structural diagram of the base station antenna of the present application when the limiting column is located at the extreme position at the other end of the adjustment hole.
[0024] Figure 5 for Figure 1 A schematic diagram of the top view structure of a base station antenna is shown.
[0025] Figure 6 This is a partial structural diagram of the base station antenna of this application.
[0026] Description of reference numerals:
[0027] 100, base station antenna; 10, reflection plate; 11, first movable bar; 12, second movable bar; 10a, adjustment hole; 10b, limit column; 20, radiation unit; 30, transmission mechanism; 31, push-pull rod; 32, first connecting rod; 33, second connecting rod; 34, support seat; 40, sliding assembly; 41, slide rail; 42, first slider; 43, second slider; 44, connecting plate; 50, driving mechanism; 51, support frame; 52, screw; 53, nut; 54, driving member; 55, limit member. DETAILED DESCRIPTION
[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0029] See also Figure 1 As shown, a base station antenna 100 provided in one embodiment of the present application includes a reflector 10, a plurality of radiation units 20 and a transmission mechanism 30. The first movable bar 11 and the second movable bar 12 are connected to the two sides of the reflector 10 respectively. The plurality of radiation units 20 are arranged on the reflector 10, and the radiation units 20 are arranged at intervals along the length direction of the reflector 10 and are located between the first movable bar 11 and the second movable bar 12. In this way, by adjusting the distance between the first movable bar 11 and the second movable bar 12, the width of the area of the reflector 10 corresponding to the radiation unit 20 can be changed, so as to adjust the boundary of the antenna and achieve the effect of adjusting the horizontal lobe width, thereby adapting to different application scenarios, improving the antenna coverage effect, and improving the network communication quality. In this embodiment, the transmission mechanism 30 is connected to the first movable bar 11 and the second movable bar 12, and the transmission mechanism 30 is used to drive the first movable bar 11 and the second movable bar 12 to move toward or away from each other to adjust the distance between the first movable bar 11 and the second movable bar 12. Thereby adapting to the requirements for the horizontal lobe width in different scenarios, and then improving the antenna coverage effect and improving the network quality.
[0030] The reflective plate 10 is made of aluminum, that is, the reflective plate 10 can be an aluminum plate.
[0031] Combination Figure 1 and Figure 2 As shown, the first movable bar 11 and the second movable bar 12 are both provided with a plurality of adjustment holes 10a, the length direction of the adjustment holes 10a is perpendicular to the length direction of the reflector 10, and the reflector 10 is connected with a limit column 10b that matches the plurality of adjustment holes 10a. In this embodiment, the first movable bar 11 and the second movable bar 12 are limited to move along the length direction of the reflector 10 by the cooperation between the limit column 10b and the adjustment hole 10a. It can be understood that, based on the fact that the first movable bar 11 and the second movable bar 12 can move toward or away from each other along the width direction of the reflector 10 under the drive of the transmission mechanism 30, the limit column 10b and the adjustment hole 10a can play a good guiding effect for the first movable plate 11 and the second movable plate 12 to move toward or away from each other in the width direction of the reflector 10, thereby improving the stability of the first movable plate 11 and the second movable plate 12 moving relative to the reflector 10.
[0032] Since the length direction of the adjustment hole 10a is perpendicular to the length direction of the reflector 10, that is, the length direction of the adjustment hole 10a is consistent with the width direction of the reflector 10. Therefore, when the first movable bar 11 and the second movable bar 12 move relative to the reflector 10 in the width direction, that is, when the first movable bar 11 and the second movable bar 12 move toward or away from each other, the limiting column 10b moves in the adjustment hole 10a. In this embodiment, the adjustment stroke of the first movable bar 11 and the second movable bar 12 is constrained by the cooperation between the limiting column 10b and the adjustment hole 10a.
[0033] Combination Figures 2 to 4 As shown, take the movement of the first movable bar 11 relative to the reflector 10 as an example. When the limit post 10b is located in the middle of the adjustment hole 10a, if the first movable bar 11 and the second movable bar 12 are close to each other, the limit post 10b is connected to the reflector 10 because the first movable bar 11 is close to the radiation unit 20. Therefore, the limit post 10b will move along the adjustment hole 10a to an extreme position at one end, and accordingly, when the first movable bar 11 and the second movable bar 12 are away from each other, the limit post 10b will move along the adjustment hole 10a to an extreme position at the other end. In this way, the movement stroke of the limit post 10b in the adjustment hole 10a limits the effect of the movement stroke of the first movable bar 11.
[0034] It should be noted that the number of adjustment holes 10a can be 2 or more than 2. The size specifications of the adjustment holes 10a corresponding to the first movable bar 11 are consistent, and are arranged at intervals along the length direction of the first movable bar 11. These adjustment holes 10a are used in conjunction with the corresponding limit columns 10b to constrain the upper movement stroke of the first movable bar 11 in the length direction perpendicular to the reflector 10. Since the length direction of the adjustment hole 10a is perpendicular to the length direction of the reflector 10, the first movable bar 11 cannot move relative to the reflector 10 in the length direction, but can only move in the width direction of the reflector 10. Correspondingly, the second movable bar 12 cannot move relative to the reflector 10 in the length direction, but can only move in the width direction of the reflector 10. Therefore, when the first movable bar 11 and the second movable bar 12 are close to each other and away from each other, the antenna boundary corresponding to the radiation unit 20 between the two can be changed, thereby adjusting the horizontal lobe width.
[0035] The limiting column 10 b may be in the shape of a cylinder, so as to reduce the friction when it moves in the adjustment hole 10 a , so that the first movable bar 11 and the second movable bar 12 can move flexibly relative to the reflective plate 10 .
[0036] Combination Figure 5 As shown, in some embodiments, the first movable bar 11 and the second movable bar 12 are both slidably connected to the reflective plate 10 via a sliding assembly 40. In this embodiment, the sliding assembly 40 can be used to achieve a stable connection between the first movable bar 11 and the second movable bar 12 and the reflective plate 10, and facilitate the first movable bar 11 and the second movable bar 12 to move toward and away from each other.
[0037] The sliding assembly 40 includes a slide rail 41, a first slider 42 and a second slider 43. The slide rail 41 is perpendicular to the length direction of the reflector 10, the first slider 42 and the second slider 43 are both slidably connected to the slide rail 41, the first movable bar 11 is connected to the first slider 42, and the second movable bar 12 is connected to the second slider 43.
[0038] It should be noted that the first sliding block 42 and the first movable bar 11 may be connected by screws, or welded to each other, or may be connected by other connecting parts.
[0039] In some embodiments, the first movable bar 11 and the second movable bar 12 are both L-shaped aluminum plates, and the first movable bar 11 and the second movable bar 12 are respectively connected to the first slider 42 and the second slider 43 through a connecting piece 44. In this embodiment, the connecting piece 44 can be a patch or a plastic sheet. The number of connecting pieces 44 can be 2, one of which is used to connect the first movable bar 11 to the first slider 42, and the other is used to connect the second movable bar 12 to the second slider 43. The connecting piece 44 and the first slider 42 can be connected by screws, or the connecting piece 44 can be welded to the first slider 42. Correspondingly, the connecting piece 44 connected to the second slider 43 can be connected to the second slider 43 by screws, or it can be welded to the second slider 43.
[0040] In some embodiments, the transmission mechanism 30 includes a push-pull rod 31, a first connecting rod 32, and a second connecting rod 33. The push-pull rod 31 is slidably connected to the reflective plate 10, and the push-pull rod 31 is perpendicular to the slide rail 41. The two ends of the first connecting rod 32 are respectively hinged to the push-pull rod 31 and the first slider 42, and the two ends of the second connecting rod 33 are respectively hinged to the push-pull rod 31 and the second slider 43. When the push-pull rod 31 slides relative to the reflective plate 10, the push-pull rod 31 drives the first slider 42 and the second slider 43 to move closer to or away from each other through the first connecting rod 32 and the second connecting rod 33, so as to adjust the distance between the first movable bar 11 and the second movable bar 12. In this embodiment, the sliding of the push-pull rod 31 relative to the reflective plate 10 causes the first connecting rod 32 and the second connecting rod 33 to drive the first movable bar 11 and the second movable bar 12 to move closer to or away from each other. Since the push-pull rod 31 is perpendicular to the slide rail 41, the moving direction of the push-pull rod 31 relative to the reflective plate 10 is parallel to the length of the reflective plate 10, so that the push-pull rod 31 fully utilizes the length space of the reflective plate 10 to adjust the distance between the first movable bar 11 and the second movable bar 12. This structure is compact and occupies little space.
[0041] Combination Figure 5 As shown, the push-pull rod 31 can be connected to the reflector 10 through a plurality of support seats 34. Specifically, the support seats 34 are connected to the reflector 10, and the support seats 34 have a slide groove, and the push-pull rod 31 is slidably arranged in the slide groove, so that the push-pull rod 31 is supported on the reflector 10 by the support seats 34. And by sliding the push-pull rod 31 relative to the support seats 34, the push-pull rod 31 can move relative to the reflector 10.
[0042] Furthermore, the lengths of the first connecting rod 32 and the second connecting rod 33 are equal, and the angles with the push-pull rod 31 are equal. In this way, the movement directions of the first movable bar 11 and the second movable bar 12 are opposite, and the moving distances are the same, which is conducive to achieving the movement synchronization of the first movable bar 11 and the second movable bar 12, and the consistency of the adjustment effect is good.
[0043] It should be noted that the push-pull rod 31 can be moved along the length direction of the reflector 10 manually or electrically. Figure 5 As shown, in some embodiments, the base station antenna 100 further includes a driving mechanism 50 , and the driving mechanism 50 is used to drive the push-pull rod 31 to slide relative to the reflector 10 .
[0044] Combination Figure 5 and Figure 6 As shown, the driving mechanism 50 includes a support frame 51, a screw rod 52, a nut 53 and a driving member 54. The support frame 51 is connected to the reflector 10, the screw rod 52 is rotatably connected to the support frame 51, the screw rod 52 is parallel to the push-pull rod 31, the nut 53 is threadedly connected to the screw rod 52, and the nut 53 is connected to the push-pull rod 31. The driving member 54 is used to drive the screw rod 52 to rotate relative to the support frame 51, so that the screw rod 52 drives the push-pull rod 31 to slide relative to the reflector 10 through the nut 53.
[0045] In this embodiment, the threads of the screw rod 52 and the nut 53 cooperate so that when the screw rod 52 rotates under the drive of the driving member 54, the screw rod 52 can drive the nut 53 to move, thereby causing the push-pull rod 31 connected to the nut 53 to move. In this way, the push-pull rod 31 drives the first movable bar 11 and the second movable bar 12 to move closer to or away from each other through the first connecting rod 32 and the second connecting rod 33, respectively, so as to adjust the boundary of the antenna and achieve the effect of adjusting the horizontal lobe width, thereby adapting to different application scenarios, improving the antenna coverage effect, and enhancing the quality of network communication.
[0046] The driving member 54 includes but is not limited to a servo motor or a micro motor. The type of the driving member 54 is not limited here. The driving member 54 can adjust the working state by remote control, so when the base station antenna 100 needs to be adjusted, the working state of the driving member 54 can be remotely controlled.
[0047] In some embodiments, the driving mechanism 50 includes a limiter 55 connected to the screw rod 52. The limiter 55 limits the movement of the nut 53 along the screw rod 52, thereby preventing the nut 53 from exceeding the movement stroke and causing the driving mechanism 50 to fail.
[0048] It should be noted that, in the description of the present application, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0049] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0050] In the present application, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact with each other, or the first and second features are in indirect contact with each other through an intermediate medium.
[0051] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the base station antenna or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0053] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A base station antenna, characterized in that: include: A reflective plate, wherein two sides of the reflective plate are respectively connected with a first movable bar and a second movable bar; a plurality of radiation units, disposed on the reflection plate, the radiation units being arranged at intervals along the length direction of the reflection plate and being located between the first movable bar and the second movable bar; and A transmission mechanism is connected to the first movable bar and the second movable bar, and is used to drive the first movable bar and the second movable bar to move toward or away from each other to adjust the distance between the first movable bar and the second movable bar.
2. The base station antenna according to claim 1, characterized in that: The first movable bar and the second movable bar are both provided with a plurality of adjustment holes, the length direction of the adjustment holes is perpendicular to the length direction of the reflective plate, and the reflective plate is connected with a limit column that matches the plurality of adjustment holes, and the limit column is used to limit the movement of the first movable bar and the second movable bar along the length direction of the reflective plate.
3. The base station antenna according to claim 1 or 2, characterized in that: The first movable bar and the second movable bar are both slidably connected to the reflective plate via a sliding assembly.
4. The base station antenna according to claim 3, characterized in that: The sliding assembly includes a sliding rail, a first slider and a second slider. The sliding rail is perpendicular to the length direction of the reflecting plate. The first slider and the second slider are both slidably connected to the sliding rail. The first movable bar is connected to the first slider, and the second movable bar is connected to the second slider.
5. The base station antenna according to claim 4, characterized in that: The transmission mechanism includes a push-pull rod, a first connecting rod and a second connecting rod. The push-pull rod is slidably connected to the reflective plate and is perpendicular to the slide rail. Two ends of the first connecting rod are respectively hinged to the push-pull rod and the first slider, and two ends of the second connecting rod are respectively hinged to the push-pull rod and the second slider. When the push-pull rod slides relative to the reflective plate, the push-pull rod drives the first slider and the second slider to move closer to or away from each other via the first connecting rod and the second connecting rod, so as to adjust the distance between the first movable bar and the second movable bar.
6. The base station antenna according to claim 5, characterized in that: The first connecting rod and the second connecting rod have the same length and the same included angle with the push-pull rod.
7. The base station antenna according to claim 5, characterized in that: It also includes a driving mechanism, which is used to drive the push-pull rod to slide relative to the reflecting plate.
8. The base station antenna according to claim 7, characterized in that: The driving mechanism includes a support frame, a screw, a nut and a driving member. The support frame is connected to the reflective plate, the screw is rotatably connected to the support frame, the screw is parallel to the push-pull rod, the nut is threadedly connected to the screw, the nut is connected to the push-pull rod, and the driving member is used to drive the screw to rotate relative to the support frame, so that the screw drives the push-pull rod to slide relative to the reflective plate through the nut.
9. The base station antenna according to claim 8, characterized in that: The driving mechanism comprises a limiter connected to the screw rod and used for limiting the movement stroke of the nut along the screw rod.
10. The base station antenna according to claim 5, characterized in that: The first movable bar and the second movable bar are both L-shaped aluminum plates, and the first movable bar and the second movable bar are respectively connected to the first sliding block and the second sliding block through a connecting piece.