Antenna

Abstract

The invention relates to an antenna. The antenna comprises a reflection substrate and an oscillator, and the oscillator is arranged on the reflection substrate. Wherein the reflection substrate comprises a central substrate and a plurality of sub-substrates, the plurality of sub-substrates are arranged around the periphery of the central substrate and are connected with the central substrate, the extension direction of the plurality of sub-substrates is different from the extension direction of the central substrate, and the extension directions of the adjacent sub-substrates are different. The extension directions of the central substrate and the plurality of sub-substrates are different, and the extension directions of the adjacent sub-substrates are different. The central substrate and the plurality of sub-substrates are arranged on different planes, so that the distance between the arrays arranged on the central substrate and the plurality of sub-substrates is increased while the central substrate and the plurality of sub-substrates occupy less area of a horizontal plane, the coupling between the adjacent arrays is weakened, the isolation between the adjacent arrays is improved, and the stability of the array is improved. And the anti-interference capability of the antenna is improved.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to an antenna. Background Technology

[0002] Currently, most antennas in the industry adopt a planar layout, which finds the largest cross-section in a limited space to arrange the array. Too few arrays will result in low degree of freedom, while too many arrays will result in high coupling and low isolation.

[0003] Therefore, there is a need to provide an antenna that increases degrees of freedom while reducing the problem of excessive coupling between elements. Summary of the Invention

[0004] Based on this, this application provides an antenna to solve the problem that increasing the degree of freedom will lead to increased coupling of the array.

[0005] An antenna includes a reflective substrate and an array element. The array element is disposed on the reflective substrate. The reflective substrate includes a central substrate and a plurality of sub-substrates, the plurality of sub-substrates being disposed around the periphery of the central substrate and connected to the central substrate, the extension direction of the plurality of sub-substrates being different from the extension direction of the central substrate, and the extension directions of adjacent sub-substrates being different.

[0006] In one embodiment, a first angle is formed between a plurality of sub-substrates and a central substrate, and a second angle is formed between adjacent sub-substrates, wherein the first angle is smaller than the second angle.

[0007] In one embodiment, the second angle is greater than 90° and less than 180°.

[0008] In one embodiment, the end of the sub-substrate furthest from the central substrate extends in a direction away from the central substrate relative to the end closest to the central substrate.

[0009] In one embodiment, the surface of the central substrate facing the element side is a plane.

[0010] In one embodiment, the surface of the sub-substrate facing the element side is a plane.

[0011] In one embodiment, the antenna further includes a first isolator disposed around the outer periphery of the central substrate and connected to the reflective substrate.

[0012] In one embodiment, the surface of the first spacer facing the central substrate has a third angle with the surface of the central substrate facing the array, the third angle being less than 90° and less than 180°.

[0013] In one embodiment, the antenna further includes a second isolator disposed between adjacent sub-subplates.

[0014] In one embodiment, the antenna further includes a mounting element disposed on the side of the sub-substrate opposite to the array.

[0015] In one embodiment, the central substrate and the sub-substrates are detachably connected; adjacent sub-substrates are detachably connected.

[0016] In one embodiment, two adjacent sub-sub-subplates are defined as a first sub-sub-subplate and a second sub-sub-subplate, respectively. In the first and second sub-sub-subplates, a groove is provided on the side of the first sub-subplate facing the second sub-subplate, and a guide groove is provided on the side of the second sub-subplate facing the first sub-subplate. The groove extends away from the central substrate, and the guide groove extends from the first sub-subplate to the second sub-subplate. The antenna includes a guide rod and an elastic member sleeved outside the guide rod. One end of the guide rod is inserted into the groove and is movably configured along the extension direction of the groove. The other end of the guide rod is inserted into the guide groove and is movably configured along the extension direction of the guide groove. One end of the elastic member contacts the surface of the first sub-subplate facing the second sub-subplate and is movably configured along the extension direction of the groove. The other end of the elastic member is located in the guide groove and connected to the groove wall. The elastic member is in a compressed state. Along the direction from the first sub-subplate to the second sub-subplate, the size of the guide groove is greater than or equal to the size of the guide rod.

[0017] The antenna described above has a central substrate and multiple sub-substrates extending in different directions, and adjacent sub-substrates also extend in different directions. This places the central substrate and multiple sub-substrates on different planes, ensuring that the central substrate and multiple sub-substrates occupy a small horizontal area while increasing the distance between the elements disposed on the central substrate and multiple sub-substrates. This weakens the coupling between adjacent elements, improves the isolation between two adjacent elements, and thus enhances the antenna's anti-interference capability. Attached Figure Description

[0018] Figure 1 This is one of the schematic diagrams of an antenna provided in an embodiment of this application.

[0019] Figure 2 This is a second schematic diagram of an antenna provided in an embodiment of this application.

[0020] Figure 3 This is the third schematic diagram of the antenna provided in the embodiments of this application.

[0021] Figure 4 This is the fourth schematic diagram of an antenna provided in an embodiment of this application.

[0022] Figure 5 This is the fifth schematic diagram of an antenna provided in an embodiment of this application.

[0023] Figure 6This is the sixth schematic diagram of an antenna provided in an embodiment of this application.

[0024] Figure 7 This is the seventh schematic diagram of an antenna provided in an embodiment of this application.

[0025] Figure 8 This is the eighth schematic diagram of an antenna provided in an embodiment of this application.

[0026] Figure 9 This is diagram nine of the antennas provided in the embodiments of this application.

[0027] Figure label:

[0028] Antenna-100; Reflector substrate-1; Array element-1000; Center array element-1001; Edge array element-1002; Center substrate-10; Sub-substrate-11; First isolator-3; Isolator plate-30; Second isolator-4; Mounting component-5; First sub-substrate-11a; Second sub-substrate-11b; Guide rod-61; Elastic component-62; Slide groove-110; Guide groove-111. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 , Figure 1 A schematic diagram of an antenna 100 provided in one embodiment of this application is shown.

[0036] The antenna 100 includes a reflective substrate 1 and an array element 1000, with the array element 1000 disposed on the reflective substrate 1. The reflective substrate 1 includes a central substrate 10 and a plurality of sub-substrates 11. The plurality of sub-substrates 11 are disposed around the periphery of the central substrate 10 and are connected to the central substrate 10. The extension direction of the plurality of sub-substrates 11 is different from the extension direction of the central substrate 10, and the extension directions of adjacent sub-substrates 11 are different.

[0037] Since the central substrate 10 and the multiple sub-substrates 11 extend in different directions, compared to placing the central substrate 10 and the multiple sub-substrates 11 on the same horizontal plane, this application sets the extension directions of the central substrate 10 and the multiple sub-substrates 11 to different directions, so that the central substrate 10 and the multiple sub-substrates 11 are located in different planes, and the central substrate 10 and the multiple sub-substrates 11 form a certain angle. This ensures that the central substrate 10 and the multiple sub-substrates 11 occupy less horizontal plane area, while increasing the distance between the array elements 1000 disposed on the central substrate 10 and the multiple sub-substrates 11. This weakens the coupling between the array elements 1000 disposed on the central substrate 10 and the array elements 1000 disposed on the sub-substrates 11, improves the isolation between adjacent array elements 1000, and thus improves the anti-interference performance of the antenna 100.

[0038] Furthermore, the adjacent sub-substrate 11 extends in different directions, causing them to be located in different planes and forming a certain angle between them. This ensures that while occupying a small horizontal area, the distance between the array elements 1000 disposed on the adjacent sub-substrate 11 is increased, thereby weakening the coupling between the array elements 1000 disposed on the adjacent sub-substrate 11 and improving the isolation between adjacent array elements, thus further improving the anti-interference performance of the antenna 100.

[0039] In some embodiments, see Figure 1 The central substrate 10 and the multiple sub-substrates 11 extend in different directions, and adjacent sub-substrates 11 also extend in different directions. This allows the central substrate 10 and the multiple sub-substrates 11 to be located on different planes, ensuring that the central substrate 10 and the multiple sub-substrates 11 occupy a smaller horizontal area while increasing the distance between the array elements 1000 disposed on the central substrate 10 and the multiple sub-substrates 11. This weakens the coupling between adjacent array elements 1000, improves the isolation between two adjacent array elements 1000, and thus enhances the anti-interference capability of the antenna 100.

[0040] For ease of explanation, the array 1000 disposed on the central substrate 10 is designated as the central array 1001, and the array 1000 disposed on the sub-substrate 11 is designated as the edge array 1002.

[0041] In some embodiments, see Figure 2 and Figure 3 Each of the multiple sub-substrates 11 has a first angle A relative to the central substrate 10, and adjacent sub-substrates 11 have a second angle B. The first angle A is smaller than the second angle B. This smaller first angle A between the multiple sub-substrates 11 and the central substrate 10 allows for a sufficiently large deflection of the sub-substrates 11 connected to the central substrate 10, enabling the edge array 1002 to cover a wider area directly in front of the central array 1001. The relatively smaller second angle B ensures a smoother connection between the radiation directions of each sub-substrates 11, avoiding coverage blind spots.

[0042] In some embodiments, the second angle B is greater than 90° and less than 180°. This ensures that the radiation directions of the multiple sub-substrates 11 are not completely opposite, thereby ensuring that the reflective surface enclosed by the multiple sub-substrates 11 and the central substrate 10 is continuous and avoiding coverage blind spots.

[0043] In some embodiments, see Figure 4 The end of the sub-substrate 11 furthest from the central substrate 10 extends away from the array 1000 relative to the end closest to the central substrate 10. This ensures that the reflective surface formed by the multiple sub-substrates 11 and the central substrate 10 is convex, thereby ensuring that the edge arrays 1002 disposed on the sub-substrate 11 and the central array 1001 disposed on the central substrate 10 have a radiating direction centered on the central array 1001, with the multiple edge arrays 1002 extending towards the front periphery of the central array 1001, thus ensuring that the antenna 100 provided in this application has a large coverage area.

[0044] In some embodiments, see Figures 1-4 The surface of the central substrate 10 facing the element 1000 is flat, and the surface of the sub-substrate 11 facing the element 1000 is also flat. Thus, by combining the different extension directions of the central substrate 10 and the multiple sub-substrate 11, the reflective substrate 1 can be made to have a "pseudo-curved surface," thereby achieving the advantages of a large coverage area, low coupling between elements, and a small area occupied on the horizontal plane. At the same time, it avoids the disadvantages of curved surface designs in terms of cost, manufacturing, assembly, and reliability, while also obtaining a space advantage far superior to flat panel designs.

[0045] In some embodiments, see Figure 1The antenna 100 also includes a first isolator 3, which is disposed around the outer periphery of the central substrate 10 and connected to the reflective substrate 1. Thus, the first isolator 3 can effectively block surface waves propagating along the surface of the reflective substrate 1, reducing the coupling between the central element 1001 and the adjacent edge elements 1002, i.e., reducing mutual interference between the central element 1001 and the edge elements 1002. Simultaneously, the first isolator 3 and the reflective substrate 1 together form a shallow cavity structure. For the central element 1001, the shallow cavity structure enclosed by the first isolator 3 and the reflective substrate 1 restricts the lateral diffusion of electromagnetic energy, forcing the energy to radiate more concentratedly forward.

[0046] For example, see Figure 1 The first isolator 3 is disposed on the outer periphery of the central substrate 10 and connected to the central substrate 10, extending perpendicular to the central substrate 10 and in a direction away from the central element 1001. Thus, the first isolator 3 can effectively block surface waves propagating along the surface of the reflective substrate 1, reducing the coupling between the central element 1001 and the adjacent edge elements 1002, i.e., reducing mutual interference between the central element 1001 and the edge elements 1002. Simultaneously, the first isolator 3 and the reflective substrate 1 together form a shallow cavity structure. For the central element 1001, the shallow cavity structure enclosed by the first isolator 3 and the reflective substrate 1 restricts the lateral diffusion of electromagnetic energy, forcing the energy to radiate more concentratedly forward.

[0047] In some embodiments, see Figure 5 The surface of the first isolator 3 facing the central substrate 10 has a third angle C with the surface of the central substrate 10 facing the array 1000 (central array 1001), which is less than 90° and less than 180°. Thus, the first isolator 3 is configured with a gradually expanding opening, or a "trumpet" shape. This provides a gradual transition from the central region to the peripheral region. When electromagnetic waves propagate along this slope, the wave impedance changes gradually rather than abruptly, which greatly suppresses reflections at the first isolator 3, allowing energy to pass more smoothly through the boundary region, thereby improving the efficiency of the antenna 100 and reducing its return loss. Simultaneously, through this smooth transition, it allows the electromagnetic fields on the central substrate 10 and the sub-substrate 11 to better "connect." It guides the electromagnetic waves rather than reflecting them, resulting in a more uniform field distribution and more consistent phase across the entire aperture surface of the antenna 100. This improves the aperture efficiency of the antenna 100, achieving higher gain without changing the physical dimensions.

[0048] For example, the first isolation member 3 may include a plurality of isolation plates 30 connected sequentially around the central substrate 10, with the plurality of isolation plates 30 connected end to end to form the first isolation member 3. Based on this, it can be understood that the third angle C between the surface of the first isolation member 3 facing the central substrate 10 and the surface of the central substrate 10 facing the pivot 1000 (central pivot 1001) is 100°. This refers to the angle C between the surface of the isolation plate 30 facing the central substrate 10 and the surface of the central substrate 10 facing the pivot 1001 being 100°, or the angle C between the surface of the isolation plate 30 facing the central pivot 1001 and the surface of the central substrate 10 where the central pivot 1001 is located being a third angle of 100°. Thus, the first isolation member 3 is provided with a gradually expanding opening, or a "trumpet mouth" shape. This provides a gradual transition from the central region to the peripheral region. When electromagnetic waves propagate along this slope, the wave impedance changes gradually rather than abruptly, which greatly suppresses reflection at the first isolator 3, allowing energy to pass more smoothly through the boundary region, thereby improving the efficiency of antenna 100 and reducing its return loss. Simultaneously, through a smooth transition, it allows the electromagnetic fields on the central substrate 10 and sub-substrate 11 to better "connect." It guides the electromagnetic waves rather than reflecting them, resulting in a more uniform field distribution and more consistent phase across the entire aperture surface of antenna 100. This improves the aperture efficiency of antenna 100 and achieves higher gain without changing the physical dimensions.

[0049] In some embodiments, see Figure 6 The antenna 100 also includes a second isolator 4, which is disposed between adjacent sub-substrates 11. In this way, the second isolator 4 can effectively block surface waves propagating along the surface of the reflective substrate 1, reduce the coupling between adjacent edge elements 1002, that is, reduce the mutual interference between adjacent edge elements 1002.

[0050] For example, see Figure 6 The second isolator 4 is disposed between adjacent sub-substrates 11. Furthermore, the second isolator 4 can also be connected to the outer wall of the first isolator 3. Thus, the second isolator 4 can effectively block surface waves propagating along the surface of the reflective substrate 1, reduce the coupling between adjacent edge elements 1002, that is, reduce the mutual interference between adjacent edge elements 1002, and improve the overall anti-interference capability of the antenna 100. At the same time, the second isolator 4, the first isolator 3 and the reflective substrate 1 form a shallow cavity, which restricts the lateral diffusion of electromagnetic energy of the edge elements 1002 disposed therein, forcing the energy to be radiated more concentratedly forward.

[0051] It is understood that there can be multiple second isolators 4, with one second isolator 4 disposed between every two adjacent sub-substrates 11. In this way, the second isolators 4 can effectively block surface waves propagating along the surface of the reflective substrate 1, reduce coupling between adjacent edge elements 1002, i.e., reduce mutual interference between adjacent edge elements 1002, and improve the overall anti-interference capability of the antenna 100. This reduces mutual interference between all edge elements 1002, thereby further improving the overall anti-interference capability of the antenna 100.

[0052] In some embodiments, see Figure 7 The antenna 100 provided in this embodiment may further include a mounting member 5, which is disposed on the side of the sub-substrate 11 opposite to the array element 1000. Thus, the antenna 100 can be mounted and fixed to other devices using the mounting member 5.

[0053] For example, see Figure 7 The antenna 100 provided in this embodiment may further include a mounting member 5, which is disposed on the side of the sub-substrate 11 opposite to the array 1000. Furthermore, the number of mounting members 5 can be multiple. For example, there may be two mounting members 5, which are spaced apart on the same sub-substrate 11, or the two mounting members 5 may be disposed on two different sub-substrates 11. Thus, the antenna 100 can be mounted and fixed to other devices or installed in the usage space of the antenna 100 using the two spaced-apart mounting members 5.

[0054] In some embodiments, the central substrate 10 and the sub-substrate 11 are detachably connected, and adjacent sub-substrate 11 are detachably connected. Thus, dividing the reflective substrate 1 into multiple detachably connected central substrates 10 and multiple sub-substrate 11 arranged around the periphery of the central substrate 10, and then fabricating them separately, simplifies the fabrication difficulty and reduces the manufacturing cost of the reflective substrate 1. On the other hand, the detachable connection between the central substrate 10 and the multiple sub-substrate 11 simplifies the installation and subsequent maintenance of the antenna 100, while also reducing maintenance costs. For example, when a certain area of ​​the reflective substrate 1 is damaged, the substrate (central substrate 10 / substrate 11) corresponding to the damaged area can be removed and replaced with a new substrate. This eliminates the need to repair or scrap the entire reflective substrate 1, significantly reducing maintenance costs. Furthermore, since the central substrate 10 and the multiple sub-substrate 11 are detachably connected, when a portion of the area is damaged, only the substrate corresponding to the damaged area needs to be removed, without dismantling and repairing the entire reflective substrate 1. To a certain extent, the antenna 100 can continue to operate.

[0055] In some embodiments, see Figures 8-9Two adjacent sub-substrates 11 are defined as a first sub-substrate 11a and a second sub-substrate 11b. In the first sub-substrate 11a and the second sub-substrate 11b, a groove 110 is provided on the side of the first sub-substrate 11a facing the second sub-substrate 11b, and a guide groove 111 is provided on the side of the second sub-substrate 11b facing the first sub-substrate 11a. The groove 110 extends in a direction away from the central substrate 10, and the guide groove 111 extends in a direction from the first sub-substrate 11a to the second sub-substrate 11b. Furthermore, the antenna 100 also includes a guide rod 61 and an elastic member 62 sleeved outside the guide rod 61. One end of the guide rod 61 is inserted into the slide groove 110 and is movably arranged along the extension direction of the slide groove 110. The other end of the guide rod 61 is inserted into the guide groove 111 and is movably arranged along the extension direction of the guide groove 111. One end of the elastic member 62 is in contact with the surface of the first sub-substrate 11a facing the second sub-substrate 11b and is movably arranged along the extension direction of the slide groove 110. The other end of the elastic member 62 is located in the guide groove 111 and is connected to the groove wall of the guide groove 111. The elastic member 62 is in a compressed state. Along the direction from the first sub-substrate 11a to the second sub-substrate 11b, the size of the guide groove 111 is less than or equal to the size of the guide rod 61.

[0056] Taking the installation process as an example, when two adjacent sub-substrates 11, such as the first sub-substrate 11a and the second sub-substrate 11b, are installed, as the first sub-substrate 11a or the second sub-substrate 11b continuously moves closer to the central substrate 10, that is, closer and closer to the position where the first sub-substrate 11a and the second sub-substrate 11b are assembled, the distance between the first sub-substrate 11a and the second sub-substrate 11b gradually decreases. Next, the explanation will take the case where the first sub-substrate 11a is fixed, or where the first sub-substrate 11a has already been installed and connected to the central substrate 10. When the second sub-substrate 11b is installed with the first sub-substrate 11a, the second sub-substrate 11b gradually moves closer to the central substrate 10, and at the same time, the distance between the second sub-substrate 11b and the first sub-substrate 11a gradually decreases. During this process, the guide rod 61, which is movably disposed in the slide groove 110, and the elastic member 62, which is sleeved outside the guide rod 61, slide in the slide groove 110 toward the center substrate 10. The guide rod 61 guides the second sub-substrate 11b, thereby simplifying the installation process and ensuring assembly accuracy. As the guide rod 61 and the elastic member 62 slide along the slide groove 110, the guide rod 61 and the elastic member 62 disposed in the guide groove 111 will also slide along the guide groove 111. Specifically, the guide rod 61 and the elastic member 62 slide along the direction from the first sub-substrate 11a to the second sub-substrate 11b, or in other words, the guide rod 61 and the elastic member 62 slide into the guide groove 111 along the depth direction of the guide groove 111. This is to accommodate the gradually decreasing distance between the first sub-substrate 11a and the second sub-substrate 11b. When the second sub-substrate 11b is installed in place, the second sub-substrate 11b comes into contact with the first sub-substrate 11a, and the guide rod 61 and the elastic member 62 sleeved outside the guide rod 61 slide completely into the guide groove 111.

[0057] Furthermore, since one end of the elastic member 62 is in contact with the surface of the first sub-substrate 11a facing the second sub-substrate 11b, and the elastic member 62 is movably disposed along the extending direction of the slide groove 110, while the other end of the elastic member 62 is located within the guide groove 111 and connected to the groove wall of the guide groove 111, the elastic member 62 is in a compressed state. Along the direction from the first sub-substrate 11a to the second sub-substrate 11b, the size of the guide groove 111 is greater than or equal to the size of the guide rod 61. Thus, when the guide rod 61 and the elastic member 62 slide into the guide groove 111, since one end of the elastic member 62 is in contact with the surface of the first sub-substrate 11a facing the second sub-substrate 11b, the compressed elastic member 62 can apply a thrust that intersects the surface of the first sub-substrate 11a inclined towards the second sub-substrate 11b, and a thrust that intersects the surface of the second sub-substrate 11b inclined towards the first sub-substrate 11a, to the first sub-substrate 11a and the second sub-substrate 11b. Furthermore, under the action of the elastic member 62, the position between the second sub-substrate 11b and the first sub-substrate 11a is relatively fixed, realizing a detachable connection between the second sub-substrate 11b and the first sub-substrate 11a. In addition, along the direction from the first sub-substrate 11a to the second sub-substrate 11b, the size of the guide groove 111 is greater than or equal to the size of the guide rod 61, which ensures that the guide rod 61 and the elastic member 62 sleeved on the outside of the guide rod 61 can slide completely into the guide groove 111 without interference during assembly.

[0058] Based on this, it can be understood that the aforementioned guide groove 111, as well as the guide rod 61 and elastic member 62 disposed in the guide groove 111, can also be disposed on the side of the second sub-substrate 11b facing the other first sub-substrate 11a. Alternatively, the side of the second sub-substrate 11b facing the other first sub-substrate 11a can be provided as a sliding groove 110, and the corresponding surface of the first sub-substrate 11a facing the second sub-substrate 11b can be provided as a guide groove 111. The guide rod 61 and elastic member can be disposed in the guide groove 111.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An antenna, characterized in that, The antenna includes: reflective substrate; A phase is disposed on the reflective substrate; The reflective substrate includes a central substrate and a plurality of sub-substrates. The plurality of sub-substrates are arranged around the periphery of the central substrate and connected to the central substrate. The extension direction of the plurality of sub-substrates is different from the extension direction of the central substrate, and the extension directions of adjacent sub-substrates are different.

2. The antenna according to claim 1, characterized in that, Each of the plurality of sub-substrates has a first angle with the central substrate, and adjacent sub-substrates have a second angle, wherein the first angle is smaller than the second angle.

3. The antenna according to claim 2, characterized in that, The second angle is greater than 90° and less than 180°.

4. The antenna according to claim 1, characterized in that, The end of the sub-substrate furthest from the central substrate extends in a direction away from the array relative to the end closest to the central substrate.

5. The antenna according to claim 1, characterized in that, The surface of the central substrate facing the array element is a plane; and / or, The surface of the sub-substrate facing the array element is a plane.

6. The antenna according to any one of claims 1-5, characterized in that, The antenna also includes: The first isolator is disposed around the outer periphery of the central substrate and is connected to the reflective substrate.

7. The antenna according to claim 6, characterized in that, The surface of the first isolator facing the central substrate has a third angle with the surface of the central substrate facing the array element, the third angle being less than 90° and less than 180°.

8. The antenna according to any one of claims 1-5, characterized in that, The antenna also includes: A second spacer is disposed between adjacent sub-substrates; and / or, The antenna also includes a mounting component disposed on the side of the sub-substrate opposite to the array element.

9. The antenna according to any one of claims 1-5, characterized in that, The central substrate and the sub-substrate are detachably connected; adjacent sub-substrates are detachably connected.

10. The antenna according to claim 9, characterized in that, Two adjacent sub-substrates are defined as a first sub-substrate and a second sub-substrate, respectively. In the first sub-substrate and the second sub-substrate, a sliding groove is provided on the side of the first sub-substrate facing the second sub-substrate, and a guide groove is provided on the side of the second sub-substrate facing the first sub-substrate. The sliding groove extends in a direction away from the central substrate, and the guide groove extends in a direction from the first sub-substrate to the second sub-substrate. The antenna includes a guide rod and an elastic member sleeved outside the guide rod. One end of the guide rod is inserted into the slide groove and is movably arranged along the extension direction of the slide groove. The other end of the guide rod is inserted into the guide slot and is movably arranged along the extension direction of the guide slot. One end of the elastic member is in contact with the surface of the first sub-substrate facing the second sub-substrate and is movably arranged along the extension direction of the slide groove. The other end of the elastic member is located in the guide slot and is connected to the slot wall of the guide slot. The elastic member is in a compressed state. Along the direction from the first sub-substrate to the second sub-substrate, the size of the guide slot is greater than or equal to the size of the guide rod.

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