Fused array antenna and base station

Abstract

The application provides a fusion array antenna and a base station, the fusion array antenna comprising: a reflecting plate, a plurality of high-frequency arrays and a plurality of low-frequency arrays; the plurality of high-frequency arrays and the plurality of low-frequency arrays are arranged on the reflecting plate; each high-frequency array comprises a plurality of high-frequency radiation units; each low-frequency array comprises a plurality of bowl-shaped low-frequency radiation units and a plurality of cross-shaped low-frequency radiation units; and the plurality of cross-shaped low-frequency radiation units in each low-frequency array are embedded in the high-frequency array. In the fusion array antenna, the plurality of bowl-shaped low-frequency radiation units in each low-frequency array are arranged on one side of the high-frequency array, and the plurality of cross-shaped low-frequency radiation units in each low-frequency array are embedded in the high-frequency array, which is conducive to reducing the length of the antenna, reducing the coupling between the high-frequency array and the low-frequency array, and ensuring the gain of the low-frequency array and the high-frequency array after fusion.

Description

Technical Field

[0001] This invention relates to the field of mobile communication equipment technology, and in particular to a fused array antenna and base station. Background Technology

[0002] With the development of mobile communication technology, rooftop resources are becoming increasingly scarce, and antennas are becoming smaller and lighter. 5G high-frequency resources are concentrated in the 3400-3600MHz band.

[0003] To utilize the 3400–3600MHz high-frequency band for 5G signal coverage without increasing the resource occupation of existing tower rooftops, current technologies typically fuse low-frequency (820–960MHz) multi-port antennas with high-frequency (3400–3600MHz) eight-port antennas. However, due to the significant frequency differences between the low and high frequencies, their respective radiation characteristics differ, resulting in distortion of the horizontal beamwidth of the fused 3400–3600MHz high-frequency radiation pattern. Furthermore, the fused antenna needs to achieve a minimal windward area to reduce rooftop resource occupation, requiring the integration of as many low-frequency elements as possible into the high-frequency band, thus leading to significant coupling between the high and low frequency bands. Summary of the Invention

[0004] This invention provides a fused array antenna and a base station to solve the problem of severe coupling in existing fused array antennas.

[0005] This invention provides a fusion array antenna, comprising: a reflector, multiple high-frequency arrays, and multiple low-frequency arrays;

[0006] The multiple high-frequency arrays and the multiple low-frequency arrays are all disposed on the reflector;

[0007] Each of the high-frequency arrays includes multiple high-frequency radiation units, and each of the low-frequency arrays includes multiple bowl-shaped low-frequency radiation units and multiple cross-shaped low-frequency radiation units. The multiple cross-shaped low-frequency radiation units in each of the low-frequency arrays are embedded in the high-frequency array.

[0008] According to a fusion array antenna provided by the present invention, the central axis of the cross-shaped low-frequency radiating element in each of the low-frequency arrays is misaligned with the central axis of the bowl-shaped low-frequency radiating element.

[0009] According to a fusion array antenna provided by the present invention, the high-frequency radiating elements of one high-frequency array and the high-frequency radiating elements of the adjacent high-frequency array are arranged in a staggered manner.

[0010] According to a fusion array antenna provided by the present invention, at least one high-frequency radiating element located at the end of each high-frequency array is not coaxial with the high-frequency array.

[0011] According to a fusion array antenna provided by the present invention, the spacing between two adjacent high-frequency radiating elements in the same high-frequency array is L, and the misalignment spacing between high-frequency radiating elements in two adjacent high-frequency arrays is 0.5L.

[0012] According to a fusion array antenna provided by the present invention, a metal baffle is provided between two adjacent low-frequency arrays.

[0013] According to a fusion array antenna provided by the present invention, the reflector includes a first plate and a second plate.

[0014] The second plate is arranged parallel to and spaced apart from the first plate, and the vertical projection of the second plate is inside the first plate; multiple low-frequency arrays are arranged on the first plate, and multiple high-frequency arrays are arranged on the second plate.

[0015] According to a fusion array antenna provided by the present invention, it further includes an antenna cover, the antenna cover being disposed on the side of the second plate opposite to the first plate;

[0016] The high-frequency radiating unit has a first distance from the radome, the cross-shaped low-frequency radiating unit has a second distance from the radome, and the bowl-shaped low-frequency radiating unit has a third distance from the radome; the first distance is greater than the second distance, and the first distance is greater than the third distance.

[0017] According to a fusion array antenna provided by the present invention, the end of the second plate is provided with a connecting plate, which is used to detachably connect to the first plate.

[0018] The present invention also provides a base station, including the aforementioned fused array antenna.

[0019] The fusion array antenna and base station provided by the present invention have multiple high-frequency arrays and multiple low-frequency arrays mounted on a reflector. Multiple bowl-shaped low-frequency radiating elements in each low-frequency array are located on one side of the high-frequency array, and multiple cross-shaped low-frequency radiating elements in each low-frequency array are embedded in the high-frequency array. This is beneficial to reducing the length of the antenna and reducing the coupling between the high-frequency array and the low-frequency array, thus ensuring the gain of the low-frequency array and the high-frequency array after fusion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is one of the schematic diagrams of the radiating element layout of the fusion array antenna provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the fusion array antenna provided by the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of the fusion array antenna provided by the present invention;

[0024] Figure 4 This is the second schematic diagram of the radiating element layout of the fusion array antenna provided by the present invention;

[0025] Reference numerals: 1: Reflector; 11: First plate; 12: Second plate; 13: First connecting plate; 2: Low-frequency array; 21: Cross-shaped low-frequency radiating element; 211: Second mounting base; 212: First low-frequency radiating arm; 22: Bowl-shaped low-frequency radiating element; 3: High-frequency array; 31: High-frequency radiating element; 311: First mounting base; 312: High-frequency radiating arm; 4: Metal baffle; 5: Antenna radome. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The following is combined with Figures 1 to 4 This invention describes a fusion array antenna according to an embodiment of the present invention.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the fusion array antenna provided in this embodiment of the invention includes: a reflector 1, multiple high-frequency arrays 3 and multiple low-frequency arrays 2.

[0030] Multiple high-frequency arrays 3 and multiple low-frequency arrays 2 are disposed on the reflector 1; each high-frequency array 3 includes multiple high-frequency radiation units 31, each low-frequency array 2 includes multiple bowl-shaped low-frequency radiation units 22 and multiple cross-shaped low-frequency radiation units 21, and the multiple cross-shaped low-frequency radiation units 21 in each low-frequency array 2 are embedded in the high-frequency array 3.

[0031] Specifically, multiple high-frequency arrays 3 and multiple low-frequency arrays 2 are all installed on the same side of the reflector 1. The number of high-frequency arrays 3 and the number of low-frequency arrays 2 are set according to requirements. The high-frequency arrays 3 and 2 are both dual-polarized arrays. The operating frequency band of the high-frequency arrays 3 can be 3400-3600MHz. Each high-frequency array 3 includes multiple high-frequency radiation units 31, which can be grid-shaped, cross-shaped, or bowl-shaped, etc.

[0032] The operating frequency band of the low-frequency array 2 can be 820 to 960 MHz. Each low-frequency array 2 includes multiple bowl-shaped low-frequency radiation units 22 and multiple cross-shaped low-frequency radiation units 21. The multiple cross-shaped low-frequency radiation units 21 in each low-frequency array 2 are embedded in the high-frequency array 3.

[0033] In one embodiment, there are two low-frequency arrays 2, defined as a first low-frequency array and a second low-frequency array, and four high-frequency arrays 3, arranged sequentially along the width direction of the reflector 1, defined as a first high-frequency array, a second high-frequency array, a third high-frequency array, and a fourth high-frequency array. The first low-frequency array is positioned close to the first high-frequency array, and the second low-frequency array is positioned close to the fourth high-frequency array.

[0034] Along the length of the reflector 1, the two sides of the reflector 1 are defined as the first side and the second side, respectively. Multiple high-frequency arrays 3 are installed on the first side of the reflector 1. The two low-frequency arrays 2 are arranged in the same way on the reflector 1; the first low-frequency array is used as an example. The first low-frequency array includes multiple bowl-shaped low-frequency radiation units 22 and multiple cross-shaped low-frequency radiation units 21. The bowl-shaped low-frequency radiation units 22 are all installed on the second side of the reflector 1, and the cross-shaped low-frequency radiation units 21 are all installed on the first side of the reflector 1. For example, the first low-frequency array includes four bowl-shaped low-frequency radiation units 22 and two cross-shaped low-frequency radiation units 21. The four bowl-shaped low-frequency radiation units 22 are all installed on the second side of the reflector 1, and the two cross-shaped low-frequency radiation units 21 are all installed on the first side of the reflector 1, with both cross-shaped low-frequency radiation units 21 embedded within the first high-frequency array. The arrangement of the second low-frequency array is similar to that of the first low-frequency array and will not be described further. The bowl-shaped low-frequency radiation unit 22 has good gain and bandwidth, while the cross-shaped low-frequency radiation unit 21 is easy to embed in the high-frequency array 3.

[0035] Multiple bowl-shaped low-frequency radiating elements 22 are installed on the second side of the reflector 1 to ensure the gain of the low-frequency array 2. Multiple cross-shaped low-frequency radiating elements 21 are installed on the first side of the reflector 1, and multiple cross-shaped low-frequency radiating elements 21 are embedded in the high-frequency array 3 to realize the fusion of the cross-shaped low-frequency radiating elements 21 and the high-frequency array 3, effectively shortening the length of the antenna, while ensuring that the gain of the low-frequency array 2 is not reduced after fusion.

[0036] In this embodiment of the invention, multiple high-frequency arrays 3 and multiple low-frequency arrays 2 are mounted on a reflector 1. Multiple bowl-shaped low-frequency radiating elements 22 in each low-frequency array 2 are located on one side of the high-frequency array 3. Multiple cross-shaped low-frequency radiating elements 21 in each low-frequency array 2 are embedded in the high-frequency array 3. This is beneficial for reducing the length of the antenna and also for reducing the coupling between the high-frequency array 3 and the low-frequency array 2, thus ensuring the gain of the low-frequency array 2 and the high-frequency array 3 after fusion.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the central axis of the cross-shaped low-frequency radiation unit 21 in each low-frequency array 2 is misaligned with the central axis of the bowl-shaped low-frequency radiation unit 22.

[0038] Specifically, the plane containing the central axes of the multiple cross-shaped low-frequency radiating elements 21 in the low-frequency array 2 is defined as the first plane, and the plane containing the central axes of the multiple bowl-shaped low-frequency radiating elements 22 in the low-frequency array 2 is defined as the second plane. The first plane and the second plane are not coplanar. The plane containing the central axes of the multiple high-frequency radiating elements 31 in the high-frequency array 3 is defined as the third plane. The first plane is closer to the third plane, and the second plane is farther away from the third plane.

[0039] In the low-frequency array 2, multiple cross-shaped low-frequency radiating elements 21 are positioned close to the high-frequency radiating element 31, which is beneficial for better integration between the cross-shaped low-frequency radiating elements 21 and the high-frequency radiating element 31; in the low-frequency array 2, multiple bowl-shaped low-frequency radiating elements 22 are positioned far away from the high-frequency radiating element 31, which is beneficial for reducing the coupling between the bowl-shaped low-frequency radiating elements 22 and the high-frequency radiating element 31, and for optimizing antenna performance.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the high-frequency radiation element 31 of one high-frequency array 3 and the high-frequency radiation element 31 of the adjacent high-frequency array 3 are arranged in a staggered manner.

[0041] Specifically, the spacing between two adjacent high-frequency radiation elements 31 in each high-frequency array 3 is L, and the lateral misalignment spacing between the high-frequency radiation elements 31 in two adjacent high-frequency arrays 3 is 0.5L. The misaligned arrangement of the high-frequency radiation elements 31 in two adjacent high-frequency arrays 3 is beneficial to improving the convergence of the horizontal plane bandwidth of the high-frequency array 3.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, at least one high-frequency radiating element 31 located at the end of each high-frequency array 3 is not coaxial with the high-frequency array 3.

[0043] Specifically, in each high-frequency array 3, one high-frequency radiating element 31 located at the end is not coaxial with the high-frequency array 3. For example, there are four high-frequency arrays 3, which are defined as the first high-frequency array, the second high-frequency array, the third high-frequency array, and the fourth high-frequency array, respectively. Along the width direction of the reflector 1, the two ends of the reflector 1 are defined as the first end and the second end of the reflector 1, respectively. The end of the high-frequency array 3 closer to the bowl-shaped low-frequency radiating element 22 is the head of the high-frequency array 3, and the other end of the high-frequency array 3 away from the bowl-shaped low-frequency radiating element 22 is the tail of the high-frequency array 3.

[0044] A high-frequency radiating element 31 at the tail of the first high-frequency array is not coaxial with the first high-frequency array and is offset toward the first end of the reflector 1; a high-frequency radiating element 31 at the tail of the second high-frequency array is not coaxial with the second high-frequency array and is offset toward the first end of the reflector 1; a high-frequency radiating element 31 at the tail of the third high-frequency array is not coaxial with the third high-frequency array and is offset toward the second end of the reflector 1; a high-frequency radiating element 31 at the tail of the fourth high-frequency array is not coaxial with the fourth high-frequency array and is offset toward the second end of the reflector 1.

[0045] The last high-frequency radiation element 31 in each high-frequency array 3 is not coaxial with the high-frequency array 3. By superimposing the radiation patterns, the horizontal plane width index is more convergent, which is beneficial to improving the convergence of the horizontal plane width of the high-frequency array 3.

[0046] In optional embodiments, the high-frequency radiation unit 31, the cross-shaped low-frequency radiation unit 21, and the bowl-shaped low-frequency radiation unit 22 can be any of the following: printed circuit board, die-cast metal, sheet metal forming, and surface mount. The structural types of the high-frequency radiation unit 31, the cross-shaped low-frequency radiation monocular, and the bowl-shaped low-frequency radiation unit 22 can be the same or different.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, a metal baffle 4 is provided between two adjacent low-frequency arrays 2.

[0048] Specifically, in the case of two low-frequency arrays 2, a metal baffle 4 is provided between the first low-frequency array and the second low-frequency array. That is, a metal baffle 4 is installed between the multiple bowl-shaped low-frequency radiation elements 22 in the first low-frequency array and the multiple bowl-shaped low-frequency radiation elements 22 in the second low-frequency array. The metal baffle 4 can improve the radiation pattern performance of the low-frequency array 2 and enhance its bandwidth convergence.

[0049] like Figure 2 , Figure 3 and Figure 4 As shown, in an optional embodiment, the reflector 1 includes a first plate 11 and a second plate 12; the second plate 12 is arranged parallel to and spaced apart from the first plate 11, and the vertical projection of the second plate 12 is within the first plate 11; a plurality of low-frequency arrays 2 are all disposed on the first plate 11, and a plurality of high-frequency arrays 3 are all disposed on the second plate 12.

[0050] Specifically, the reflector 1 includes a first plate 11 and a second plate 12. The second plate 12 is arranged parallel to the first plate 11. The length direction of the second plate 12 is consistent with the length direction of the first plate 11, and the width direction of the second plate 12 is consistent with the width direction of the first plate 11. The distance between the second plate 12 and the first plate 11 is set according to requirements.

[0051] The cross-shaped low-frequency radiation unit 21 and the bowl-shaped low-frequency radiation unit 22 in the low-frequency array 2 are both mounted on the first plate 11, and the high-frequency radiation unit 31 in the high-frequency array 3 are all mounted on the second plate 12. The second plate 12 is located above the first side of the first plate 11, and the height of the high-frequency radiation unit 31 can be flexibly adjusted by setting the second plate 12.

[0052] The high-frequency radiation unit 31 includes a first mounting base 311 and a high-frequency radiation arm 312 connected to the first mounting base 311. The cross-shaped low-frequency radiation unit 21 includes a second mounting base 211 and a first low-frequency radiation arm 212 connected to the second mounting base 211. The bowl-shaped low-frequency radiation unit 22 includes a third mounting base and a second low-frequency radiation arm connected to the third mounting base. Given that the dimensions of the high-frequency radiation unit 31 and the cross-shaped low-frequency radiation unit 21 are fixed, by adjusting the height of the second plate 12 relative to the first plate 11, the first low-frequency radiation arm 212 is positioned above the high-frequency radiation arm 312 along the height direction, while maintaining a suitable distance between the first low-frequency radiation arm 212 and the high-frequency radiation arm 312.

[0053] Both the cross-shaped low-frequency radiation unit 21 and the bowl-shaped low-frequency radiation unit 22 are fixed on the first plate 11, and both high-frequency radiation units 31 are fixed on the second plate 12. By adjusting the distance between the second plate 12 and the first plate 11, the distance between the first low-frequency radiation arm 212 and the high-frequency radiation arm 312 can be flexibly adjusted. By optimizing the distance between the second plate 12 and the first plate 11, it is beneficial to simultaneously improve the gain of the high-frequency array 3 and the gain of the low-frequency array 2.

[0054] like Figure 2 , Figure 3 and Figure 4 As shown, in an optional embodiment, the fusion array antenna further includes an antenna cover 5, which is disposed on the side of the second plate 12 away from the first plate 11; the high-frequency radiating unit 31 has a first distance from the antenna cover 5, the cross-shaped low-frequency radiating unit 21 has a second distance from the antenna cover 5, and the bowl-shaped low-frequency radiating unit 22 has a third distance from the antenna cover 5; the first distance is greater than the second distance, and the first distance is greater than the third distance.

[0055] Specifically, the radome 5 is positioned above the first plate 11 and the second plate 12. Along the height direction of the fused array antenna, there is a first gap between the high-frequency radiating arm 312 of the high-frequency radiating unit 31 and the radome 5, a second gap between the first low-frequency radiating arm 212 of the cross-shaped low-frequency radiating unit 21 and the radome 5, and a third gap between the second low-frequency radiating arm of the bowl-shaped low-frequency radiating unit 22 and the radome 5.

[0056] By adjusting the installation height of the radome 5 relative to the first plate 11, the second and third spacings can be flexibly adjusted. By adjusting the installation height of the second plate 12 relative to the first plate 11, the first spacing can be flexibly adjusted. Optimizing the height positions of the first plate 11, the second plate 12, and the radome 5 helps the high-frequency array 3 obtain better radiation pattern indicators and ensures that the key indicator of the high-frequency array 3, the horizontal plane radiation pattern, is not distorted. At the same time, it helps the low-frequency array 2 obtain better radiation pattern indicators and ensures that the key indicator of the low-frequency array 2, the horizontal plane radiation pattern, is not distorted.

[0057] like Figure 3 and Figure 4 As shown, in an optional embodiment, the end of the second plate 12 is provided with a connecting plate, which is used to detachably connect to the first plate 11.

[0058] Specifically, the second plate 12 can be connected to the first plate 11 via first connecting plates 13. There are two first connecting plates 13, positioned along the width of the second plate 12 on opposite sides. One end of each first connecting plate 13 is connected to the second plate 12, and the other end is connected to the first plate 11. Alternatively, there can be one first connecting plate 13, positioned on the side of the second plate 12 facing the first plate 11 and located in the middle of the second plate 12. One end of each first connecting plate 13 is connected to the second plate 12, and the other end is connected to the first plate 11.

[0059] The first connecting plate 13 serves to connect the second plate 12 and the first plate 11. At the same time, the first connecting plate 13 can reduce the coupling between the cross-shaped low-frequency radiation unit 21 and the high-frequency radiation unit 31 to a certain extent.

[0060] The first connecting plate 13 is detachably connected to the first plate body 11. For example, the bottom surface of the first connecting plate 13 has a plug-in portion, and the first plate body 11 has a slot. The plug-in portion and the slot are adapted to each other, and the plug-in portion is inserted into the slot to realize the plug-in connection between the second plate body 12 and the first plate body 11. Alternatively, the bottom of the first connecting plate 13 has a protruding connecting portion with a through hole, and the first plate body 11 has a threaded hole. A screw passes through the through hole of the connecting portion and is screwed into the threaded hole of the first plate body 11 to realize the detachable connection between the second plate body 12 and the first plate body 11.

[0061] The second plate 12 can also be connected to the first plate 11 via two second connecting plates. These two connecting plates are positioned along the length of the second plate 12 on opposite sides, with one end and the other end connected to the second plate 12. Alternatively, one second connecting plate can be positioned on the side of the second plate 12 facing the first plate 11, at the center of the second plate 12. One end of the second connecting plate is connected to the second plate 12, and the other end is connected to the first plate 11. The second connecting plate and the first plate 11 can be connected via a plug-in or screw connection; the specific connection method is not detailed here.

[0062] Multiple cross-shaped low-frequency radiation units 21 and multiple bowl-shaped low-frequency radiation units 22 are mounted on the first plate 11 to form a low-frequency module. Multiple high-frequency radiation units 31 are mounted on the second plate 12 to form a high-frequency module. The low-frequency module and the high-frequency module can be prefabricated and assembled separately. After the low-frequency module and the high-frequency module are assembled separately, the second plate 12 is then mounted on the first plate 11 to achieve the assembly of the low-frequency module and the high-frequency module.

[0063] The low-frequency module and the high-frequency module are assembled separately, which is conducive to the mass production of the fused array antenna. At the same time, the second plate 12 is detachably connected to the first plate 11 through the connecting plate, which is conducive to the quick assembly of the fused array antenna.

[0064] This invention also provides a base station including the aforementioned fused array antenna. Multiple low-frequency arrays 2 are mounted on a first plate 11, and multiple high-frequency arrays 3 are mounted on a second plate 12. The second plate 12 is located above the first side of the first plate 11. Multiple bowl-shaped low-frequency radiating elements 22 in each low-frequency array 2 are mounted on the second side of the first plate 11, and multiple cross-shaped low-frequency radiating elements 21 in each low-frequency array 2 are mounted on the first side of the first plate 11. Furthermore, the multiple cross-shaped low-frequency radiating elements 21 are embedded within the high-frequency arrays 3. This design facilitates a reduction in antenna length and miniaturization, while also ensuring the gain of the fused low-frequency arrays 2 and high-frequency arrays 3. The structure of the fused array antenna of this invention is advantageous for utilizing the rooftop resources of existing tower low-frequency antennas for 5G fused coverage of high-frequency networks.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fused array antenna, characterized by, include: Reflector, multiple high-frequency arrays and multiple low-frequency arrays; The multiple high-frequency arrays and the multiple low-frequency arrays are all disposed on the reflector; Each of the high-frequency arrays includes multiple high-frequency radiation units, and each of the low-frequency arrays includes multiple bowl-shaped low-frequency radiation units and multiple cross-shaped low-frequency radiation units. The multiple cross-shaped low-frequency radiation units in each of the low-frequency arrays are embedded in the high-frequency array. Multiple high-frequency arrays are installed on the first side of the reflector, multiple bowl-shaped low-frequency radiation units are installed on the second side of the reflector, and multiple cross-shaped low-frequency radiation units are installed on the first side of the reflector. The central axis of the cross-shaped low-frequency radiation unit in each of the low-frequency arrays is misaligned with the central axis of the bowl-shaped low-frequency radiation unit; The high-frequency radiating elements of one of the high-frequency arrays and the high-frequency radiating elements of the adjacent high-frequency array are staggered; at least one high-frequency radiating element located at the end of each high-frequency array is not coaxial with the high-frequency array. The reflector includes a first plate and a second plate; The second plate is arranged parallel to and spaced apart from the first plate, and the vertical projection of the second plate is inside the first plate; multiple low-frequency arrays are disposed on the first plate, and multiple high-frequency arrays are disposed on the second plate; A metal baffle is provided between two adjacent low-frequency arrays; It also includes an antenna radome, which is disposed on the side of the second plate opposite to the first plate; the high-frequency radiating unit has a first distance from the antenna radome, the cross-shaped low-frequency radiating unit has a second distance from the antenna radome, and the bowl-shaped low-frequency radiating unit has a third distance from the antenna radome; the first distance is greater than the second distance, and the first distance is greater than the third distance.

2. The fused array antenna of claim 1, wherein, The spacing between two adjacent high-frequency radiation units in the same high-frequency array is L, and the misalignment spacing between two adjacent high-frequency radiation units in the high-frequency array is 0.5L.

3. The fused array antenna of claim 1, wherein, The second plate has a connecting plate at its end, which is used to detachably connect to the first plate.

4. A base station, characterized by Includes the fusion array antenna as described in any one of claims 1 to 3.

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