Radome and antenna apparatus

Abstract

The present application provides a radome (1) and an antenna apparatus. The radome (1) comprises a cover body (1a). An outer surface of the cover body (1a) comprises a windward surface (12) and a leeward surface (11) which are oppositely arranged, and a first wavy surface (13) and a second wavy surface (14) which are connected between the windward surface (12) and the leeward surface (11) and are oppositely arranged. The first wavy surface (13) and the second wavy surface (14) are used for reducing the wind resistance of the windward surface (12) and the leeward surface (11).

Description

Radome and antenna assembly

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311556824.2 filed on November 20, 2023, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a radome and an antenna device. Background Art

[0004] With the continuous development of mobile communication technology and the continuous innovation of antenna technology, antenna size is getting larger and larger, and the wind resistance of antennas is also increasing. Currently, the windward surface size of antennas has reached 500mm×2700mm. The wind resistance of antennas poses a huge challenge to the structural installation and the safety of towers.

[0005] Reducing radome wind resistance primarily involves reducing the pressure differential between the windward and leeward sides of the radome. Currently, the main techniques used to reduce this pressure differential include: 1. Reducing the windward area; 2. Redesigning the radome's shape, such as adding rounded corners or grooves. However, the windward area and radome corner radius are limited by the overall aircraft dimensions, making significant optimization impossible. Consequently, these techniques offer limited benefits in reducing wind resistance.

[0006] Summary of the Invention

[0007] In a first aspect, the present application provides an antenna cover, comprising a cover body, the outer surface of the cover body comprising a windward surface and a leeward surface arranged opposite to each other, and a first wave surface and a second wave surface connected between the windward surface and the leeward surface and arranged opposite to each other, the first wave surface and the second wave surface being used to reduce the wind resistance of the windward surface and the leeward surface.

[0008] In a second aspect, the present application also provides an antenna device, comprising an antenna cover according to the first aspect, an antenna body arranged in the antenna cover, and an antenna cover mounting assembly, wherein the antenna cover mounting assembly is used to fix the antenna cover to a holding pole.

[0009] Other objects and features of the present application will become clear by reading the specification, claims and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0011] FIG1 is an installation diagram of an antenna device provided in an embodiment of the present application.

[0012] FIG2 is a partial three-dimensional view of a radome provided in an embodiment of the present application.

[0013] FIG3 is a partial stereoscopic view of another antenna cover provided in an embodiment of the present application.

[0014] FIG4 is a schematic diagram of the first wavy surface / second wavy surface of the radome provided in an embodiment of the present application on a cross section parallel to the center line.

[0015] FIG5 is a diagram showing the airflow distribution of a radome in the related art.

[0016] FIG6 is an airflow distribution diagram of the antenna cover provided in an embodiment of the present application.

[0017] Explanation of the main component symbols: 1. Radome; 1a. Radome body; 11. Leeward side; 12. Windward side; 13. First wavy surface; 131. First curved surface; 132. Second curved surface; 133. First transition surface; 14. Second wavy surface; 141. Third curved surface; 142. Fourth curved surface; 143. Second transition surface; 15. First rounded corner; 16. Second rounded corner; 2. Radome mounting assembly; 3. Holding pole. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The drawings are for illustration only, and the proportions of each dimension, etc., may differ from those in actual applications. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present application and are not to be construed as limiting the present application.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0021] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0022] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0023] The present embodiment provides a radome for housing an antenna body, which includes components that implement antenna functions. As shown in Figure 1 , the radome 1 is fixedly connected to a mast 3 via a radome mounting assembly 2. The radome mounting assembly 2 securely connects the radome 1 to the mast 3 on the leeward side 11 of the radome 1. Specifically, the radome mounting assembly 2 and the radome 1 can be flexibly connected via bolts, or fixedly connected via bonding, welding, or other methods. It is understood that other connection methods are also possible, as long as the radome mounting assembly 2 and the radome 1 are securely connected, and the specific connection is not limited here. The radome mounting assembly 2 and the mast 3 can also be flexibly connected via bolts. It is understood that the radome mounting assembly can also securely connect the radome 1 to the mast 3 on the top surface of the radome 1. It should be noted that Figure 1 only schematically illustrates the overall structure of the radome 1 and does not show the specific structure of the exterior surface.

[0024] Referring to Figures 2 and 3 , the radome 1 includes a radome body 1a. In some embodiments, the radome 1 is comprised of the radome body 1a. The outer surface of the radome body 1a includes a windward surface 12 and a leeward surface 11 disposed opposite each other. The windward surface 12 can serve as the radiating surface of the antenna; the leeward surface 11 can serve as a mounting surface for fixed connection to the radome mounting assembly 2. The windward surface 12 and the leeward surface 11 can both be planes, for example. However, in practical applications, the windward surface 12 and the leeward surface 11 can also be surfaces of any other shape, provided that the benefits of reducing wind resistance are not affected.

[0025] The outer surface of the cover body 1a also includes a first wave surface 13 and a second wave surface 14 connected between the windward surface 12 and the leeward surface 11 and arranged opposite to each other. The first wave surface 13 and the second wave surface 14 are used to reduce the wind resistance of the windward surface 12 and the leeward surface 11. By making the two side surfaces connected between the windward surface 12 and the leeward surface 11 both wave surfaces, namely the first wave surface 13 and the second wave surface 14, compared with the methods of adding rounded corners or groove structures in the related art, this embodiment designs the overall shape of the side of the antenna cover. Without excessively increasing the space size of the entire machine, it is possible to achieve a significant optimization and adjustment of the wind resistance of the windward surface 12 and the leeward surface 11, thereby achieving a greater wind resistance benefit.

[0026] Furthermore, to create a closed interior space for the hood body 1a, the outer surface of the hood body 1a also includes a first and second end surface positioned opposite each other. The windward surface 12, leeward surface 11, first wavy surface 13, and second wavy surface 14 together form a hood body with openings at both ends, with the first and second end surfaces used to seal the openings at both ends of the hood body. The first and second end surfaces are, for example, both flat surfaces. Of course, in practical applications, the first and second end surfaces can also adopt any other surface shape without affecting the wind resistance reduction benefits. In other words, the overall outline of the outer surface of the hood body 1a is a hexahedron, such as the radome 1 shown in Figure 1. In some embodiments, the first and second end surfaces are located at the top and bottom of the radome 1 shown in Figure 1. In some embodiments, the first and second end surfaces are also wavy surfaces to further reduce wind resistance on the windward and leeward surfaces 12 and 11.

[0027] In some embodiments, the cover body 1a has a designated centerline A located between the first wave surface 13 and the second wave surface 14. This centerline A can be, for example, the axis of symmetry between the first wave surface 13 and the second wave surface 14 (as shown in FIG2 ) or a centerline A passing through the center of symmetry O between the first wave surface 13 and the second wave surface 14 (as shown in FIG3 ). When the windward surface 12 is a plane, the centerline A can also be perpendicular to the windward surface 12 and pass through the center of the windward surface 12. It should be noted that the centerline A is a virtual reference line designated to facilitate description of the shape of the cover body 1a.

[0028] On this basis, as shown in Figures 2 and 3, the first wavy surface 13 includes a first curved surface 131 and a second curved surface 132. The distance D1 between the first curved surface 131 and the center line A increases from the two boundaries in the direction parallel to the center line A (the upper and lower boundaries in Figures 2 or 3) to the position between the two boundaries. This position is, for example, the middle position between the two boundaries, or it can be a position deviated from the middle position and close to any boundary. That is, the above-mentioned distance D1 is at its maximum value at the middle position between the two boundaries of the first curved surface 131 or at a position close to any boundary, and there is only one such maximum value. The distance D2 between the second curved surface 132 and the center line A decreases monotonically from one boundary close to the first curved surface 131 to the other boundary. That is, the above-mentioned distance D2 is at its maximum value at a position of the second curved surface 132 close to one boundary of the first curved surface 131 and at its minimum value at the position of the other boundary. It is easy to understand that the above-mentioned distances D1 and D2 are only adaptively marked at a certain position.

[0029] Alternatively or additionally, the second wavy surface 14 includes a third curved surface 141 and a fourth curved surface 142. The distance D3 between the third curved surface 141 and the centerline A increases from two boundaries in a direction parallel to the centerline A to a position between the two boundaries. This position can be, for example, the middle position between the two boundaries, or it can be a position deviated from the middle position and close to any one of the boundaries. That is, the above-mentioned distance D3 is at its maximum value at the middle position between the two boundaries of the third curved surface 141 or at a position close to any one of the boundaries, and there is only one such maximum value. The distance D4 between the fourth curved surface 142 and the centerline A decreases monotonically from one boundary close to the third curved surface 141 to the other boundary. That is, the above-mentioned distance D4 is at its maximum value at a position of the fourth curved surface 142 close to one boundary of the third curved surface 141 and is at its minimum value at the other boundary. It is easy to understand that the above-mentioned distances D3 and D4 are only adaptively marked at a certain position.

[0030] In this way, the first curved surface 131 and the second curved surface 132 can together form a wavy streamlined side surface. Similarly, the third curved surface 141 and the fourth curved surface 142 can together form a wavy streamlined side surface. When the airflow flows through the first curved surface 131 or the third curved surface 141, or flows through the first curved surface 131 and the third curved surface 141, the separation point of the airflow from the side surface of the radome can be moved backward, thereby reducing the wake area (i.e., the area between the airflow and the side surface after the airflow separates from the side surface when flowing through the radome 1). The negative pressure area on the leeward side 11 will decrease as the wake area decreases, thereby reducing the pressure difference resistance between the windward side 12 and the leeward side 11, and thus reducing the wind resistance of the windward side 12. Moreover, the wind resistance of the windward side 12 and the leeward side 11 can be reduced simultaneously, thereby achieving a greater wind resistance benefit.

[0031] In the related art, as shown in Figure 5, the radome side is flat, with a rounded corner between the windward side and the side. The separation point between the radome side and the airflow is at position E1, and the wake area is the area indicated by arrow F1. As shown in Figure 6, the separation point between the wavy streamlined side and the airflow in this embodiment is at position E2, which is significantly shifted back from position E1 in Figure 5 (closer to the leeward side). Moreover, the wake area is the area indicated by arrow F2, which is significantly smaller than area F1 in Figure 5. This significantly reduces the negative pressure area, reduces the pressure differential resistance on the front of the radome, and thus achieves a greater wind resistance benefit.

[0032] It is assumed that the two sides of the windward surface 12 connected to the first wave surface 13 and the second wave surface 14 are respectively the first side (the left side in Figures 2 and 3) and the second side (the right side in Figures 2 and 3), and the two sides of the leeward surface 11 connected to the first wave surface 13 and the second wave surface 14 are respectively the third side (the left side in Figures 2 and 3) and the fourth side (the right side in Figures 2 and 3). On this basis, in one embodiment, as shown in Figure 2, the first curved surface 131 is adjacent to the first side, the second curved surface 132 is adjacent to the third side; the third curved surface 141 is adjacent to the second side, and the fourth curved surface 142 is adjacent to the fourth side. In this case, the airflow can flow through the first curved surface 131 and the third curved surface 141 located on both sides of the windward surface 12, so that the two branches of the airflow after being split by the windward surface 12 can be moved backward from the separation points of the first curved surface 131 and the third curved surface 141, respectively. This can significantly reduce the pressure difference resistance between the windward surface 12 and the leeward surface 11, thereby reducing the wind resistance of the windward surface 12. Moreover, the wind resistance of the windward surface 12 and the leeward surface 11 can be reduced simultaneously, thereby achieving a large wind resistance benefit. Furthermore, the first curved surface 131 and the third curved surface 141 can be symmetrical with respect to the centerline A; alternatively or additionally, the second curved surface 132 and the fourth curved surface 142 can be symmetrical with respect to the centerline A. In this way, the first wave surface 13 and the second wave surface 14 are axially symmetrical structures on both sides of the windward surface 12 and the leeward surface 11, thereby ensuring that the airflow distribution on both sides of the windward surface 12 and the leeward surface 11 is consistent, which is conducive to reducing the wake area.

[0033] In another embodiment, as shown in FIG3 , the first curved surface 131 may be adjacent to the first side edge, the second curved surface 132 may be adjacent to the third side edge, the third curved surface 141 may be adjacent to the fourth side edge, and the fourth curved surface 142 may be adjacent to the second side edge. Of course, in practical applications, the first curved surface 131 may be adjacent to the third side edge, the second curved surface 132 may be adjacent to the first side edge, the third curved surface 141 may be adjacent to the second side edge, and the fourth curved surface 142 may be adjacent to the fourth side edge. In other words, when the first curved surface 131 is adjacent to the windward side 12, the third curved surface 141 may be adjacent to the leeward side 11; and when the first curved surface 131 is adjacent to the leeward side 11, the third curved surface 141 may be adjacent to the windward side 12. When the second curved surface 132 is adjacent to the windward surface 12, the fourth curved surface 142 is adjacent to the leeward surface 11; when the second curved surface 132 is adjacent to the leeward surface 11, the fourth curved surface 142 is adjacent to the windward surface 12. In this case, the airflow flows through the first curved surface 131 and the fourth curved surface 142 located on both sides of the windward surface 12. The effect of this is that the wind resistance of the windward surface 12 can be reduced while the wind resistance of the windward surface 12 can be made consistent with the wind resistance of the leeward surface 11, thereby improving the situation where the wind resistance of the leeward surface 11 is generally greater than the wind resistance of the windward surface 12, and further reducing max(windward surface 12 wind resistance, leeward surface 11 wind resistance), that is, reducing the maximum value of the wind resistance of the leeward surface 11 and the wind resistance of the windward surface 12. Furthermore, the orthographic projections of the first and third curved surfaces 131, 141 on a section B of the cover body 1a perpendicular to the centerline A are symmetrical relative to the center O of the section B. For example, as shown in FIG3 , the section B is located midway between the windward surface 12 and the leeward surface 11. Alternatively or additionally, the orthographic projections of the second and fourth curved surfaces 132, 142 on a section B of the cover body 1a perpendicular to the centerline A are symmetrical relative to the center O of the section B. In this way, the first and second wave surfaces 13, 14 are centrally symmetrical structures on the windward and leeward surfaces 12, 11, thereby facilitating consistency in wind resistance on the windward and leeward surfaces 12 and 11.

[0034] In some embodiments, as shown in FIG4 , the arc shapes of the first and third curved surfaces 131 and 141, as well as the second and fourth curved surfaces 132 and 142 on the cross section parallel to the centerline A can satisfy the following parameter conditions to achieve the effect of significantly reducing the wind resistance of the radome. Taking the case where the arc shapes of the first and third curved surfaces 131 and 141 are the same, and the arc shapes of the second and fourth curved surfaces 132 and 142 are the same, as an example, a boundary of the first and third curved surfaces 131 and 141 away from the adjacent windward surface 12 or leeward surface 11 is a first control boundary P1, and the distance between the first control boundary P1 and the adjacent windward surface 12 or leeward surface 11 in the direction parallel to the centerline A is a first distance D5; a boundary of the second and fourth curved surfaces 132 and 142 away from the adjacent windward surface 12 or leeward surface 11 is a second control boundary P2, and the distance between the second control boundary P2 and the adjacent leeward surface 11 is a first distance D5. Or the spacing between the windward surface 12 in a direction parallel to the centerline A is a second spacing D6; the first spacing D5 and the second spacing D6 are equal; the spacing between the first control boundary P1 and the centerline A is a third spacing D7; the spacing between the second control boundary and the centerline A is a fourth spacing D8; the third spacing D7 is greater than the fourth spacing D8; the angle between the first curved surface 131 and the third curved surface 141 and the adjacent windward surface 12 or leeward surface 11 is a first guide angle θ1, and the angle between the second curved surface 132 and the fourth curved surface 142 and the adjacent windward surface 12 or leeward surface 11 is a second guide angle θ2; the first guide angle θ1 is greater than the second guide angle θ2. The first guide angle θ1 and the second guide angle θ2 are defined as the angles between the tangent line of the curved surface passing through the side of the adjacent windward surface 12 or leeward surface 11 and the windward surface 12 or leeward surface 11.

[0035] In some embodiments, the first flow guide angle θ1 is greater than or equal to 30° and less than or equal to 60°. In practical applications, the value of the first flow guide angle θ1 can be selected within the above-mentioned angle range according to specific circumstances, and the third distance D7 can be determined under the premise that the first distance D5 is determined.

[0036] In some embodiments, the first distance D5 and the second distance D6 are both equal to one third of the distance D between the windward surface 12 and the leeward surface 11 in a direction parallel to the center line A.

[0037] In some embodiments, as shown in FIG4 , a first transition surface 133 connects between the first control boundary P1 of the first curved surface 131 and the second control boundary P2 of the second curved surface 132. Alternatively or additionally, a second transition surface 143 connects between the first control boundary P1 of the third curved surface 141 and the second control boundary P2 of the fourth curved surface 142. Thus, the first curved surface 131, the first transition surface 133, and the second curved surface 132 can collectively form a wavy streamlined side surface. Similarly, the third curved surface 141, the second transition surface 143, and the fourth curved surface 142 can collectively form a wavy streamlined side surface. In FIG4 , the first transition surface 133 and the second transition surface 143 have the same arc shape in a cross section parallel to the centerline A. Of course, in actual applications, the arc shapes of the first transition surface 133 and the second transition surface 143 in a cross section parallel to the centerline A may differ.

[0038] In some embodiments, as shown in Figures 2 and 3, a first rounded corner 15 is formed between the first curved surface 131 and the third curved surface 141 and the adjacent windward surface 12 or leeward surface 11; and a second rounded corner 16 is formed between the second curved surface 132 and the fourth curved surface 142 and the adjacent windward surface 12 or leeward surface 11. Both the first rounded corner 15 and the second rounded corner 16 are used to achieve an arc transition between the windward surface 12 or leeward surface 11 and the adjacent curved surface, thereby facilitating reduced wind resistance.

[0039] As another technical solution, as shown in Figure 1, this embodiment also provides an antenna device, which includes a radome 1 and an antenna body arranged in the radome 1, and a radome mounting assembly 2. The radome mounting assembly 2 is used to fixedly connect the radome 1 to the holding pole 3. The radome 1 adopts the above-mentioned radome 1 provided in this embodiment.

[0040] The antenna device provided in this embodiment can achieve the purpose of significantly reducing the wind resistance on the windward side 12 and the leeward side 11 by adopting the above-mentioned antenna cover 1 provided by this embodiment. Compared with the methods of adding rounded corners or groove structures in the related art, this can achieve significant optimization and adjustment without excessively increasing the spatial size of the entire machine, thereby achieving greater wind resistance benefits.

[0041] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present application, and such modifications and improvements are also considered to be within the scope of protection of the present application.

Claims

1. A radome, comprising a radome body, wherein: The outer surface of the cover body includes a windward surface and a leeward surface that are arranged opposite to each other, and a first wave surface and a second wave surface that are connected between the windward surface and the leeward surface and are arranged opposite to each other, and the first wave surface and the second wave surface are used to reduce the wind resistance of the windward surface and the leeward surface.

2. The radome according to claim 1, wherein: The cover body has a designated center line located between the first wavy surface and the second wavy surface, wherein: The first wave surface comprises a first arcuate surface and a second arcuate surface, the distance between the first arcuate surface and the center line increases from two boundaries in a direction parallel to the center line to a position between the two boundaries, and the distance between the second arcuate surface and the center line decreases monotonically from one boundary close to the first arcuate surface to the other boundary; and / or, The second wave surface includes a third curved surface and a fourth curved surface, the spacing between the third curved surface and the center line increases from two boundaries in a direction parallel to the center line to a position between the two boundaries, and the spacing between the fourth curved surface and the center line decreases monotonically from a boundary close to the third curved surface to the other boundary.

3. The radome according to claim 2, wherein: The two sides of the windward surface connected to the first wave surface and the second wave surface are respectively the first side and the second side, and the two sides of the leeward surface connected to the first wave surface and the second wave surface are respectively the third side and the fourth side, wherein: The first arcuate surface is adjacent to the first side edge, and the second arcuate surface is adjacent to the third side edge; The third arcuate surface is adjacent to the second side edge, and the fourth arcuate surface is adjacent to the fourth side edge.

4. The radome according to claim 3, wherein: The first arcuate surface and the third arcuate surface are symmetrical with respect to the center line; and / or, The second arcuate surface and the fourth arcuate surface are symmetrical with respect to the center line.

5. The radome according to claim 2, wherein: The two sides of the windward surface connected to the first wave surface and the second wave surface are respectively the first side and the second side, and the two sides of the leeward surface connected to the first wave surface and the second wave surface are respectively the third side and the fourth side, wherein: The first arcuate surface is adjacent to the first side edge, and the second arcuate surface is adjacent to the third side edge; the third arcuate surface is adjacent to the fourth side edge, and the fourth arcuate surface is adjacent to the second side edge; or, The first arcuate surface is adjacent to the third side edge, the second arcuate surface is adjacent to the first side edge; the third arcuate surface is adjacent to the second side edge, and the fourth arcuate surface is adjacent to the fourth side edge.

6. The radome according to claim 5, wherein: The orthographic projections of the first arcuate surface and the third arcuate surface on the cross section of the cover body perpendicular to the center line are symmetrical with respect to the center of the cross section; and / or, Orthographic projections of the second arcuate surface and the fourth arcuate surface on a cross section of the cover body perpendicular to the center line are symmetrical with respect to the center of the cross section.

7. The radome according to any one of claims 2 to 6, wherein: One boundary of the first curved surface and the third curved surface away from the adjacent windward surface or the leeward surface is a first control boundary, and the spacing between the first control boundary and the adjacent windward surface or the leeward surface in a direction parallel to the center line is a first spacing; one boundary of the second curved surface and the fourth curved surface away from the adjacent windward surface or the leeward surface is a second control boundary, and the spacing between the second control boundary and the adjacent leeward surface or the windward surface in a direction parallel to the center line is a second spacing; the first spacing and the second spacing are equal; The distance between the first control boundary and the center line is a third distance; the distance between the second control boundary and the center line is a fourth distance; the third distance is greater than the fourth distance; The angle between the first curved surface and the third curved surface and the adjacent windward surface or the leeward surface is a first guide angle, and the angle between the second curved surface and the fourth curved surface and the adjacent windward surface or the leeward surface is a second guide angle; the first guide angle is greater than the second guide angle.

8. The radome according to claim 7, wherein: The first guide angle is greater than or equal to 30° and less than or equal to 60°.

9. The radome according to claim 7, wherein: The first spacing and the second spacing are both equal to one third of the spacing between the windward surface and the leeward surface in a direction parallel to the center line.

10. The radome according to claim 7, wherein: A first transition surface is connected between the first control boundary of the first arcuate surface and the second control boundary of the second arcuate surface; and / or, A second transition surface is connected between the first control boundary of the third arcuate surface and the second control boundary of the fourth arcuate surface.

11. An antenna device, comprising a radome according to any one of claims 1 to 10, an antenna body arranged in the radome, and a radome mounting assembly, wherein the radome mounting assembly is used to fix the radome to a pole.

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