An antenna device

Abstract

This application discloses an antenna device for reducing wind load. The antenna device includes an radome, the surface of which is provided with an interference structure. This interference structure alters the flow of airflow in the surface boundary layer when airflow passes over the surface of the radome. By incorporating the interference structure, the antenna device changes the flow of airflow in the surface boundary layer, thereby reducing the wind load experienced by the antenna device.

Description

[0001] This application is a divisional application. The original application has the application number 202010246575.7 and the original application date is March 31, 2020. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication devices, specifically to an antenna device. Background Technology

[0003] With the development of the wireless communication industry, the number of communication frequency bands and standards is constantly increasing. As a result, the number of base station antennas, which serve as transmitting and receiving antennas, is also increasing. The size of the radome is also getting larger and larger, and the wind load on the antenna is also increasing, which in turn affects the safety of communication towers.

[0004] In existing technologies for reducing the wind load on radomes, the wind load on the front (0° angle), sides (90° angle), and back of the antenna is reduced by increasing the radius of the rounded corners around the radome.

[0005] A large rounded radome can reduce wind resistance at symmetrical angles such as 0°, 90°, and 180°. However, at high wind speeds, when the wind direction is at a certain angle to the radome, the radome will generate a large lift, similar to an airplane wing, which will increase the combined wind load on the antenna. This results in a larger wind load on the radome at the angle, thus affecting the safety of the communication tower connected to the radome. Summary of the Invention

[0006] This application provides an antenna device that can reduce the wind load on the antenna device when airflow passes over its surface.

[0007] The first aspect of this application provides an antenna device. The antenna device includes an radome, the surface of which is provided with an interference structure. The interference structure is used to alter the flow of the surface boundary layer airflow when the antenna device is placed at a high altitude and the airflow passes over the arc-shaped corner surface of the radome, under the influence of the interference structure.

[0008] In this embodiment, by setting an interference structure on the antenna device, the airflow can be altered by the arc-shaped surface of the antenna radome when it passes over the surface of the radome, thereby reducing the wind load on the antenna device.

[0009] Based on the implementation of the first aspect of the present application, in the first embodiment of the first aspect of the present application, the antenna device further includes an antenna body and a mast. The antenna body is disposed inside the antenna cover. It is understood that the antenna body can be a set of antenna bodies or multiple sets of antenna bodies. The antenna is connected to the mast.

[0010] In this embodiment of the application, it is shown that the antenna device also includes an antenna body and a mast, which improves the feasibility of the solution.

[0011] Based on the first aspect or the first implementation of the first aspect of the present application, in the second implementation of the first aspect of the present application, the interference structure is an interference structure formed by vacuum forming process during the production of the radome or the processing of the radome.

[0012] In this embodiment, the interference structure is formed by vacuum forming, which improves the feasibility of the solution.

[0013] Based on the first aspect to the second implementation of the embodiments of this application, in the third implementation of the first aspect of the embodiments of this application, the interference structure is an interference structure formed by knurling process during the production of the radome or during the processing of the radome.

[0014] In this embodiment, the interference structure is formed by knurling, which improves the feasibility of the solution.

[0015] Based on the first aspect to the third embodiment of the embodiments of this application, in the fourth embodiment of the first aspect of the embodiments of this application, the interference structure is an interference structure formed by molding process during the production of the radome or during the processing of the radome.

[0016] In this embodiment, the interference structure is formed by molding, which improves the feasibility of the solution.

[0017] Based on the first to fourth embodiments of the present application, in the fifth embodiment of the first aspect of the present application, the interference structure is a separate structure and the connection between it and the radome is a detachable connection.

[0018] In this embodiment, the interference structure is detachably connected to the radome, which improves the convenience of installation and transportation.

[0019] Based on the first to fifth embodiments of the present application, in the sixth embodiment of the first aspect of the present application, the interference structure includes a turbulence tripwire.

[0020] In this embodiment of the application, the feasibility of the solution is improved when the interference structure includes a tripwire.

[0021] Based on the first to sixth embodiments of the present application, in the seventh embodiment of the first aspect of the present application, the interference structure includes a rough surface.

[0022] In this embodiment, the feasibility of the solution is improved when the interference structure includes a rough surface.

[0023] Based on the first to sixth embodiments of the present application, in the seventh embodiment of the first aspect of the present application, the turbulence tripwire is a convex turbulence tripwire.

[0024] In this embodiment of the application, when the deflector is a convex deflector, the feasibility of the solution is improved.

[0025] Based on the first to seventh embodiments of the present application, in the eighth embodiment of the first aspect of the present application, the turbulence tripwire is a concave turbulence tripwire.

[0026] In this embodiment of the application, when the deflector is a concave deflector, the feasibility of the solution is improved.

[0027] Based on the first to eighth embodiments of the present application, in the ninth embodiment of the first aspect of the present application, the rough surface is a collection of circular protrusions or circular concave surfaces.

[0028] In this embodiment of the application, the feasibility of the solution is improved when the rough surface is a collection of circular protrusions or circular concave surfaces.

[0029] Based on the first to ninth embodiments of the present application, in the tenth embodiment of the first aspect of the present application, the rough surface is a collection of polygonal protrusions or polygonal concave surfaces.

[0030] In this embodiment of the application, the feasibility of the solution is improved when the rough surface is a collection of polygonal protrusions or polygonal concave surfaces.

[0031] Based on the first to tenth embodiments of the present application, in the eleventh embodiment of the first aspect of the present application, the four corners of the cross-section of the radome are rounded.

[0032] In this embodiment of the application, when the four corners of the radome's cross-section are rounded, the wind load from airflows at 0°, 90°, 180°, etc., can be effectively reduced.

[0033] Based on the first to tenth embodiments of the present application, in the eleventh embodiment of the first aspect of the present application, the interference structure is an antenna radome obtained by an extrusion process.

[0034] In this embodiment, the interference structure is obtained by extruding the radome, which improves the feasibility of the solution.

[0035] Based on the first aspect to the eleventh embodiment of the present application, in the twelfth embodiment of the first aspect of the present application, the interference structure is an antenna radome obtained by a blow molding process.

[0036] In this embodiment, the interference structure is obtained by blow molding an antenna radome, which improves the feasibility of the solution.

[0037] Based on the first aspect to the twelfth embodiment of the embodiments of this application, in the thirteenth embodiment of the first aspect of the embodiments of this application, the interference structure is an antenna radome obtained by a vacuum forming process.

[0038] In this embodiment, the interference structure is obtained by vacuum forming an antenna radome, which improves the feasibility of the solution.

[0039] Based on the first to thirteenth embodiments of the present application, in the fourteenth embodiment of the first aspect of the present application, the interference structure is an antenna radome obtained by injection molding.

[0040] In this embodiment, the interference structure is obtained by injection molding an antenna radome, which improves the feasibility of the solution.

[0041] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0042] By setting interference structures on the surface of the radome, the flow of air in the surface boundary layer is altered, thereby reducing the combined wind load and improving the safety of the connection between the radome and the communication tower. Attached Figure Description

[0043] Figure 1 A schematic diagram of the antenna device provided in this application;

[0044] Figure 2 Another structural schematic diagram of the antenna device provided in this application;

[0045] Figure 3 Another structural schematic diagram of the antenna device provided in this application;

[0046] Figure 4 Another structural schematic diagram of the antenna device provided in this application;

[0047] Figure 5 Another structural schematic diagram of the antenna device provided in this application;

[0048] Figure 6 Another structural schematic diagram of the antenna device provided in this application;

[0049] Figure 7Another structural schematic diagram of the antenna device provided in this application;

[0050] Figure 8 An illustration of an existing antenna device provided in this application;

[0051] Figure 9 An artist's rendering of the antenna device provided in this application. Detailed Implementation

[0052] This application provides an antenna device that alters the flow of airflow in the surface boundary layer when airflow passes over the surface of the antenna device, thereby reducing the combined wind load and improving the safety of the connection between the radome and the communication tower.

[0053] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0054] The implementation principle, specific implementation method and corresponding beneficial effects of the technical solution of this application will be described in detail below with reference to the accompanying drawings.

[0055] Please participate Figure 1 This is a schematic diagram of the antenna device provided in this application.

[0056] The antenna device includes an antenna body 101, an antenna cover 102, a mounting component 103, and a mast 104. The antenna body 101 is built into the antenna cover 102. The surface of the antenna cover 102 is provided with a fixing position for fixing the mounting component 103. The mounting component 103 is used to fix the antenna cover 102 and the mast 104.

[0057] It is understood that the antenna body 101 built into the radome 102 can be one set, two sets, or more sets; no specific limitation is made here.

[0058] The mounting component 103 can be connected to the radome 102 by bolts or by adhesive. It is understood that it can also be connected by other means, as long as the mounting component 103 is securely connected to the radome 102. No specific limitation is made here.

[0059] For example, when connected by bolts, the mounting component 103 includes a base with bolt holes, and the bolt holes on the base correspond one-to-one with the bolt holes on the side of the radome, so that the base can be fixedly connected to the radome by bolts. The mounting component 103 is fixed to the base. The other side of the mounting component 103 can also be movably connected to the mast 104 by bolts. It is understood that the mounting component 103 can also be movably connected to the radome 102 directly through the bolt holes on one side of the mounting component 103 without using the base with bolt holes. The specific connection is not limited here.

[0060] In practical applications, the mounting component 103 can also be fastened to the radome 102 through the top surface of the radome 102. The specific details are not limited here. For example, bolt holes are provided on the top surface of the radome 102, and the mounting component 103 is fastened to the radome 102 through the bolt holes on the top surface of the radome 102.

[0061] The pole 104 can be cylindrical, cuboid, or other shapes; no specific limitation is made here.

[0062] The antenna device of this application will be described in detail below, taking into account the structure of the antenna device described above.

[0063] Please see Figure 2 This is a schematic diagram of the structure of an antenna provided in this application.

[0064] The antenna includes an antenna cover 201, an antenna body 202, an upper cover 203, and a lower cover 204. The antenna body 202 is built into the antenna cover 201. The upper cover 203 is fastened to the upper end of the antenna cover 201, and the lower cover 204 is fastened to the lower end of the antenna cover 201, so that the upper cover 203, the antenna cover 201, and the lower cover 204 form a complete antenna device.

[0065] like Figure 2As shown, in practical applications, the lower end cover 204 and / or the upper end cover 203 may be provided with bolt holes, which are used to securely connect the lower end cover 204 and / or the upper end cover 203 to the radome 201. It is understood that other methods can also be used to securely connect the lower end cover 204 and / or the upper end cover 203 to the radome 201, such as using a snap-fit ​​connection. For example, the lower end cover 204 and / or the upper end cover 203 may be provided with snap-fit ​​grooves. The radome 201 is provided with a snap fastener at its upper or lower end, so that when the lower or upper end of the radome 201 is connected to the lower end cover 204 and / or the upper end cover 203, the snap fastener portion of the lower end of the radome 201 fits into the snap fastener groove, thereby securing the lower end cover 204 and / or the upper end cover 203 to the radome 201. It is understood that the upper end cover 203 and the lower end cover 204 can also be connected to the radome in other ways, which are not limited here.

[0066] The radome 201 has an interference structure on its side (rounded corner surface). This interference structure is used to change the flow of the surface boundary layer airflow when the airflow passes over the radome surface, thereby reducing the wind load.

[0067] It is understandable that in practical applications, the four corners of the radome's cross-section may also be of other shapes. For example, the four corners of the radome's cross-section may be right angles. No specific limitation is made here.

[0068] Optionally, in one possible implementation, such as Figure 2 As shown, the interference structure can be a tripwire 205, which is disposed on the side of the radome 201. The tripwire 205 can be obtained by special processing of the radome 201, or it can be pasted on the surface of the radome 201. The specific details are not limited here.

[0069] For example, the tripwire 205 can be obtained by extrusion during the production of the radome. It is understood that it can also be obtained by knurling, molding, vacuum forming, injection molding or blow molding during the production of the radome. The specifics are not limited here.

[0070] like Figure 3 As shown, Figure 3 The diagram shows a cross-sectional view of the radome. The tripwire 205 can be a tripwire protruding from the side of the radome. It is understood that the tripwire 205 can also be other forms of tripwire, such as... Figure 4 As shown, Figure 4 The diagram shows a cross-sectional view of the radome. The tripwire 205 can also be a tripwire recessed into the side of the radome. The specific form of the tripwire is not limited here.

[0071] In practical applications, the tripwire 205 can also be installed on other surfaces of the radome, such as... Figure 5 As shown, Figure 5 This is a cross-sectional view of the radome. The tripwire 205 is provided on three sides of the radome. It is understood that tripwires can also be provided on other sides of other radomes, but this is not limited here.

[0072] Alternatively, in one possible implementation, such as Figure 2 As shown, the interference structure can also be a rough point 206, which is disposed on the side of the radome 201. The rough point 206 can be obtained by the radome 201 through a special process, or it can be pasted on the surface of the radome 201. The specific details are not limited here.

[0073] For example, the roughness point 206 can be obtained by extrusion during the production of the radome. It is understood that it can also be obtained by knurling, molding, vacuum forming, injection molding or blow molding during the production of the radome. Alternatively, the roughness point can be formed on the surface of the radome by adjusting the material forming parameters during the production of the radome. The specific details are not limited here.

[0074] like Figure 6 As shown, Figure 6 The diagram shows a cross-sectional view of the radome. The roughness point 206 can be a circular protrusion or a concave point protruding from the side of the radome. It is understood that the roughness point 206 can also be other forms of roughness point, such as... Figure 7 As shown, Figure 7 This is a cross-sectional view of the radome. The rough point 206 can be a convex point or a concave point of a polygon. The rough point 206 can also be a rough point of other shapes. The specific shape is not limited here.

[0075] In practical applications, the roughness point 206 can also be set on other surfaces of the radome. For example, the roughness point 206 can be set on three surfaces of the radome. It is understood that roughness points can also be set on other surfaces of other radomes. The specifics are not limited here.

[0076] In one possible implementation, the interference structure may also include both tripwire 205 and rough point 206, but this is not limited here.

[0077] When an antenna is mounted on a mast, it is in a high-altitude environment with strong airflow. As the airflow passes over the antenna surface, due to the varying angles of the airflow, and when there is a certain angle between the antenna and the wind direction, its streamlined shape, similar to that of an aircraft wing, results in delayed boundary layer separation. Figure 8 As shown, Figure 8The diagram shows a cross-section of the radome. The air velocity is high on the upper surface of the antenna and low on the lower surface. According to Bernoulli's principle, the pressure is low on the upper surface with high velocity and high on the lower surface with low velocity. This results in a large lift force on the antenna. When the lift force and drag combine, the antenna experiences a large wind load. This wind load is then transmitted to the mast through the mounting components, causing the mast to bear a large wind load and affecting the safety of both the antenna and the mast.

[0078] In this embodiment, because the surface of the radome 201 is provided with interference structures such as tripwires 205 or rough spots 206, when the airflow passes through the interference structures such as tripwires 205 or rough spots 206 on the surface of the radome 201, it changes the flow of the surface boundary layer airflow, generating a turbulent wake on the upper surface of the antenna, such as... Figure 9 As shown, Figure 9 The diagram shows a cross-section of the radome, which puts the antenna in a stall state, significantly reducing lift and thus decreasing the net wind load on the antenna. This reduces the wind load on the mast and improves the safety of both the antenna and the mast.

[0079] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0080] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0081] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

Claims

1. An antenna device, characterized in that, include: The radome has an interference structure on its surface, which reduces lift when airflow passes over the surface of the radome at an angle. The interference structure includes a rough surface, which is a set of circular protrusions, a set of circular concave surfaces, a set of polygonal protrusions, or a set of polygonal concave surfaces.

2. The antenna device according to claim 1, characterized in that, The four corners of the radome's cross-section are rounded.

3. The antenna device according to claim 1 or 2, characterized in that, The rough surface is disposed on the side, or the rough surface is disposed on three sides of the radome.

4. The antenna device according to claim 3, characterized in that, Each of the sides includes two rounded corners and a side plane, and the rough surface is disposed on the surface of the rounded corners.

5. The antenna device according to any one of claims 1-4, characterized in that, The interference structure includes a turbulence tripwire.

6. The antenna device according to claim 5, characterized in that, The turbulence-causing line is a convex turbulence-causing line.

7. The antenna device according to claim 5, characterized in that, The turbulence-causing line is a concave turbulence-causing line.

8. The antenna device according to any one of claims 5-7, characterized in that, The turbulence-causing line is a straight line.

9. The antenna device according to any one of claims 5-8, characterized in that, The number of the turbulence tripwires is at least four.

10. The antenna device according to claim 9, characterized in that, The radome has two lines on each of its two opposite sides.

11. The antenna device according to claim 10, characterized in that, Each of the sides includes two rounded corners and a side plane, and two deflector lines on each of the sides are respectively disposed in the regions of the two rounded corners adjacent to the side plane.

12. The antenna device according to claim 10, characterized in that, Each of the sides includes two rounded corners and a side plane, and two deflection lines on each of the sides are respectively disposed in the junction area of ​​the two rounded corners and the side plane.

13. The antenna device according to any one of claims 1-12, characterized in that, The interference structure is obtained during the production of the radome through extrusion, knurling, molding, vacuum forming, injection molding, or blow molding processes.

14. The antenna device according to any one of claims 1-13, characterized in that, The connection between the interference structure and the radome is detachable.

15. The antenna device according to any one of claims 1-14, characterized in that, The antenna device further includes: The antenna body is housed inside the antenna cover, and the antenna cover is connected to the mounting rod.

16. An antenna device, characterized in that, include: The radome has an interference structure on its surface, which reduces lift and causes the antenna device to stall when airflow passes over the surface of the radome at an angle. The interference structure includes a turbulence tripwire, which is an outwardly convex turbulence tripwire. There are at least four turbulence tripwires, with two on each of the two opposite sides of the radome, and the turbulence tripwires are straight lines.

17. The antenna device according to claim 16, characterized in that, Each side includes two rounded corners and a side plane, and two deflection lines on each side are respectively set in the area of ​​the side plane adjacent to the two rounded corners.

18. The antenna device according to claim 16, characterized in that, Each side includes two rounded corners and a side plane, and two deflection lines on each side are respectively set in the junction area of ​​the two rounded corners and the side plane.

19. The antenna device according to any one of claims 16-18, characterized in that, The number of the turbulence tripwires is four.

20. The antenna device according to any one of claims 16-19, characterized in that, The interference structure also includes a rough surface.

21. The antenna device according to claim 20, characterized in that, The rough surface is disposed on the side, or the rough surface is disposed on three sides of the radome.

22. The antenna device according to claim 21, characterized in that, Each side includes two rounded corners and a side plane, and the rough surface is provided on the surface of the rounded corners.

23. The antenna device according to any one of claims 20-22, characterized in that, The rough surface is a collection of circular protrusions or circular concave surfaces.

24. The antenna device according to any one of claims 20-22, characterized in that, The rough surface is a collection of polygonal protrusions or polygonal concave surfaces.

25. The antenna device according to any one of claims 16-24, characterized in that, The interference structure is obtained during the production of the radome through extrusion, knurling, molding, vacuum forming, injection molding, or blow molding processes.

Images