Antenna and base station

Abstract

The present application relates to the technical field of communications. Provided are an antenna and a base station. The antenna provided in the present application comprises a mounting structural member and at least two antenna sub-arrays, wherein each antenna sub-array comprises a radome, a reflector plate and a radiating element, the radiating element being located on one side of the reflector plate and being connected to the reflector plate, and the reflector plate and the radiating element being accommodated in the radome. The radome comprises a body and two end covers, wherein the body is of an integrated structure, and each end cover blocks one end portion of the body, such that the radome can serve to protect the reflector plate and the radiating element. The mounting structural member is located outside of the radome of each antenna sub-array, at least one of the radome and the reflector plate of each antenna sub-array is connected to the mounting structural member, and any two adjacent antenna sub-arrays are spaced apart from each other. In the antenna provided in the present application, there is a ventilation gap between any two adjacent antenna sub-arrays, such that a reduction in the wind resistance of the antenna can be facilitated, thus improving the structural reliability of the antenna.

Description

Antenna and base station

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on December 18, 2023, with application number 202311751798.9 and application name "An Antenna and Base Station", the entire contents of which are incorporated by reference into this application. Technical Field

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

[0004] With the development of mobile communications, the usage rate of mobile terminals is increasing. The network coverage of mobile cellular networks is crucial for mobile communications. A key component in mobile cellular networks is the antenna. Generally, the antenna's gain is positively correlated with its physical size. In other words, a larger antenna is required for higher antenna gain.

[0005] However, since antennas are typically mounted high on poles or towers, larger antennas experience greater wind resistance, which in turn increases the resistance they withstand. This impacts the antenna's structural reliability and, consequently, its service life. Improving antenna reliability requires strengthening the antenna and its mounting structure, but this significantly increases the cost of antenna installation. Therefore, how to ensure that the antenna meets required dimensions while reducing wind resistance and ensuring a more reliable structure has become a pressing challenge for those skilled in the art.

[0006] Summary of the Invention

[0007] The present application provides an antenna and a base station for reducing the wind resistance of the antenna, thereby improving the structural reliability of the antenna.

[0008] In a first aspect, the present application provides an antenna comprising a mounting structure and at least two antenna subarrays. Each antenna subarray comprises a radome, a reflector, and a radiating element. The radiating element is located on one side of the reflector and is connected to the reflector. The reflector and radiating element are housed in the radome. The radome comprises a housing and two end caps, which are disposed at the two ends of the housing, respectively. Each end cap seals one end of the housing, enabling the radome to protect structures such as the reflector and radiating element. Furthermore, the housing of the radome is an integrated structure, which effectively improves the structural reliability of the antenna subarrays. The mounting structure is located on the exterior of the radome of each antenna subarray. At least one of the radome or reflector of each antenna subarray is connected to the mounting structure, and any two adjacent antenna subarrays are spaced apart. A ventilation gap exists between any two adjacent antenna subarrays of the antenna provided by the present application, which helps reduce the wind resistance of the antenna and thereby improves the structural reliability of the antenna.

[0009] In one possible implementation of the present application, the reflector is a continuous plate-like structure, which can effectively improve the reflector's reflection performance for the radio frequency signal radiated by the radiation unit. Alternatively, the reflector can be a hollow plate-like structure, which can be made frequency-selective by adjusting the hollow pattern of the reflector, so that the reflector can reflect radio frequency signals of a specific frequency and transmit radio frequency signals of a specific frequency, so that the antenna can be stacked with other antennas, thereby achieving the co-planar installation of antennas with different operating frequency bands. It can achieve the upgrade and expansion of the antenna without changing the existing antenna, which is conducive to reducing the upgrade cost of the antenna and the installation cost of the antenna.

[0010] In a second aspect, the present application also provides an antenna comprising a mounting structure and at least two antenna subarrays. Each antenna subarray comprises a radome, a reflector, and a radiating element. The radiating element is located on one side of the reflector and is connected to the reflector. The reflector and radiating element are housed in the radome. The radome comprises a housing and two end caps, each of which is disposed at the two ends of the housing. Each end cap seals one end of the housing, enabling the radome to protect structures such as the reflector and radiating element. Furthermore, the reflector is connected to the inner sidewall of the radome and is a hollow plate-like structure. The mounting structure is located outside the radome of each antenna subarray. At least one of the radome or reflector of each antenna subarray is connected to the mounting structure, and any two adjacent antenna subarrays are spaced apart. A ventilation gap exists between any two adjacent antenna subarrays in the antenna provided by the present application, which can help reduce the wind resistance of the antenna and thereby improve the structural reliability of the antenna. In addition, since the reflector is a hollow plate structure, the reflector can be made frequency selective by adjusting the hollow pattern of the reflector, so that the reflector can reflect radio frequency signals of a specific frequency and transmit radio frequency signals of a specific frequency, so that the antenna can be stacked with other antennas, thereby realizing the co-planar installation of antennas with different working frequency bands. It can achieve the upgrade and expansion of the antenna without changing the existing antenna, which is conducive to reducing the upgrade cost of the antenna and the installation cost of the antenna.

[0011] In the antenna provided in the first and second aspects of the present application, the reflector includes at least two sub-reflector layers, and the at least two sub-reflector layers are stacked along the side away from the radiation unit, and any two adjacent sub-reflector layers are spaced apart. The reflector adopts the above design, and the reflection performance of the reflector for the radio frequency signal radiated by the radiation unit can be improved by the joint design of at least two sub-reflector layers. In addition, by setting the reflector to at least two sub-reflector layers, it is also beneficial to reduce the overall width of the reflector, thereby facilitating the reduction of the width of the antenna subarray. In this way, the spacing between two adjacent antenna subarrays can be increased without changing the overall size of the antenna, or the size of the antenna can be reduced while ensuring the performance of the antenna, thereby facilitating the reduction of the wind resistance of the antenna.

[0012] As described above, the reflector is connected to the inner sidewall of the radome. If the reflector includes at least two sub-reflector layers, each sub-reflector layer can be connected to the inner sidewall of the radome to improve the reliability of the connection between the reflector and the radome. Alternatively, at least one sub-reflector layer can be connected to the inner sidewall of the radome, and two adjacent sub-reflector layers can be connected via a rigid support member. In this way, after the two adjacent sub-reflector layers are connected to the rigid support member, at least one sub-reflector layer can be connected to the inner sidewall of the radome, effectively improving the assembly efficiency of the reflector and the radome.

[0013] To improve the reflector's reflection performance for radio frequency signals radiated by the radiating elements, in one possible implementation of the present application, at least one sub-reflector layer of the reflector may include two oppositely disposed bends, each of which bends in the direction from the reflector to the radiating elements. This design of the sub-reflector layer of the reflector also helps reduce the overall width of the reflector, thereby reducing the width of the antenna subarray.

[0014] Each antenna subarray also includes two metal baffles, positioned opposite each other and connected to the inner wall of the radome. The radiating element is located between the two metal baffles, and the two bends of each reflector layer are aligned in the same direction as the two metal baffles. These two metal baffles reflect the RF signals radiated by the radiating element, improving the front-to-back ratio of the antenna subarray and, consequently, its signal radiation performance.

[0015] In one possible implementation of the first and second aspects of the present application, the radiating unit includes a first radiating portion and a second radiating portion connected to each other, the first radiating portion and the second radiating portion being arranged at a set angle, the first radiating portion being connected to a reflector, and the second radiating portion being bent from the first radiating portion toward the reflector. In the present application, the radiating unit of the antenna subarray is designed using the above-mentioned two-part bending method, which can effectively reduce the board area occupied by the radiating unit on the reflector, which is conducive to reducing the size of the reflector, and thus facilitating a reduction in the width of the antenna subarray.

[0016] Each antenna subarray also includes a band-resistance reactance layer, which is a hollowed-out metal layer. The radiating element is located between the band-resistance reactance layer and the reflector, and the band-resistance reactance layer is connected to the inner wall of the radome. This allows the RF signal radiated by the radiating element to pass through the hollowed-out portion of the band-resistance reactance layer. By properly designing the hollowed-out pattern of the band-resistance reactance layer, the bandwidth of the RF signal radiated by the radiating element can be adjusted, thereby improving the signal radiation performance of the antenna subarray.

[0017] In this application, to enhance the effect of the resistive layer on adjusting the bandwidth of the RF signal radiated by the radiating element, the projection of the resistive layer on the reflector overlaps the projection of the radiating element on the reflector, thereby improving the electrical performance of the antenna subarray.

[0018] In a possible implementation of the first and second aspects of the present application, the cross-sectional shape of the cover body of the antenna cover may be an elliptical, circular, or rounded rectangular shape, etc. In addition, the cover body of the antenna cover may be a cylindrical structure integrally formed through extrusion molding and other processes. This can ensure the structural reliability of the antenna cover while also helping to reduce the width of the antenna cover, thereby helping to reduce the wind resistance of the antenna.

[0019] In addition, the spacing between any two adjacent antenna subarrays is equal, which can reduce the wind resistance of the antenna while also meeting the antenna array performance requirements.

[0020] In this application, the mounting structure can be configured in various ways depending on the antenna's application scenario. For example, in one possible implementation of the first and second aspects, the mounting structure is a beam structure. Furthermore, the antenna includes at least two mounting structures, which are spaced apart. At least one of the radome or reflector of each antenna subarray is connected to each mounting structure. This ensures that the at least two antenna subarrays are reliably connected via the at least two mounting structures, which helps improve the structural reliability of the antenna.

[0021] In another possible implementation of the first and second aspects, the mounting structure has a bent structure. In this case, the antenna also includes at least two mounting structures, which are spaced apart. At least one of the radome or reflector of each antenna subarray is connected to each mounting structure. This ensures that the at least two antenna subarrays are reliably connected via the at least two mounting structures, which helps improve the structural reliability of the antenna.

[0022] The bending shape of the mounting structure member mentioned above, which is arranged in a bent structure, can be U-shaped, V-shaped, arc-shaped or triangular, etc., and can be specifically designed according to the specific application scenario of the antenna.

[0023] In another possible implementation of the first and second aspects, the mounting structure includes a first rotating portion and a second rotating portion, the first rotating portion and the second rotating portion being hingedly connected, at least one of the radome or reflector of at least one of the at least two antenna subarrays being connected to the first rotating portion, and at least one of the radome or reflector of at least one of the at least two antenna subarrays being connected to the second rotating portion. In this manner, the overall shape of the antenna can be adjusted through relative rotation of the first and second rotating portions, thereby enabling the antenna to meet the antenna shape requirements of different application scenarios, which helps expand the antenna's range of applicability.

[0024] Specifically, when connecting the mounting structure to the antenna subarrays, in one possible implementation of the first and second aspects of the present application, the mounting structure can be integrally formed with end caps disposed on the same side of at least two antenna subarrays. This facilitates simplifying the antenna structure and improving antenna assembly efficiency.

[0025] In addition to the aforementioned structure, the antenna provided herein also includes an RF active module, which is located outside the radome of each antenna subarray. The RF active module is connected to at least one of the radome or reflector of each antenna subarray, and is electrically connected to the radiating elements of each antenna subarray. This facilitates the electrical connection between the RF active module and each radiating element and reduces the number of cables connecting the RF active module and the radiating elements, thereby reducing the cost of the antenna.

[0026] In one possible implementation of the first and second aspects of the present application, the antenna includes at least two RF active modules, the at least two RF active modules being located outside the radome of each antenna subarray, each RF active module being connected to at least one of the radome or reflector of at least one antenna subarray, and each RF active module being electrically connected to a radiating element of at least one antenna subarray. This effectively enhances the flexibility of setting up the RF active modules and the flexibility of connecting the RF active modules to the radiating elements of at least two antenna subarrays.

[0027] Furthermore, when the antenna includes at least two RF active modules, the at least two RF active modules can be arranged in a one-to-one correspondence with at least two antenna subarrays, with each RF active module located outside the radome of a corresponding antenna subarray and electrically connected to the radiating elements of a corresponding antenna subarray. This design effectively enhances the flexibility of the antenna's overall form, making the antenna applicable to a wider range of scenarios.

[0028] In a third aspect, the present application further provides a base station comprising a support frame and an antenna according to the first or second aspect, the antenna being connected to the support frame. Because the antenna of this base station has low wind resistance, the antenna has high structural reliability, which helps improve the reliability of the base station structure and signal radiation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of a system architecture provided by an embodiment of the present application;

[0030] FIG2 is a schematic diagram of an application scenario of the antenna provided in an embodiment of the present application;

[0031] FIG3 is a schematic structural diagram of an antenna provided in an embodiment of the present application;

[0032] FIG4 is an AA cross-sectional view of the antenna shown in FIG3 ;

[0033] FIG5 is a schematic structural diagram of a reflective plate provided in an embodiment of the present application;

[0034] FIG6 is a schematic diagram of a structure in which an antenna provided in an embodiment of the present application is stacked with another antenna;

[0035] FIG7 is another cross-sectional view of the antenna subarray provided in this application;

[0036] FIG8 is another cross-sectional view of the antenna subarray provided in this application;

[0037] FIG9 is another cross-sectional view of the antenna subarray provided in this application;

[0038] FIG10 is another cross-sectional view of the antenna subarray provided in this application;

[0039] FIG11 is another schematic diagram of the structure of an antenna provided in an embodiment of the present application;

[0040] 12a to 12e are schematic diagrams of several other structures of antennas provided in embodiments of the present application;

[0041] FIG13 is another schematic diagram of the structure of an antenna provided in an embodiment of the present application;

[0042] 14a to 14c are schematic diagrams of several other structures of antennas provided in embodiments of the present application;

[0043] Figures 15a to 15c are schematic diagrams of several application scenarios of the antenna provided in the embodiments of the present application.

[0044] Reference numerals:

[0045] 1000-base station; 2000-terminal;

[0046] 100-antenna; 1001-antenna subarray; 10-radome; 1-radome; 2-end cap; 20-antenna connector; 30-radiating element;

[0047] 301 - first radiating portion; 302 - second radiating portion; 40 - reflector; 401 - hollow pattern; 402a, 402b - sub-reflector layer;

[0048] 4021-bending part; 50-adjusting unit; 60-phase shifter; 70-rigid support member; 80-metal baffle; 90-resistive reactance layer;

[0049] 1002-mounting structure; 10021-first rotating part; 10022-second rotating part; 10023-hinge shaft;

[0050] 1003 - RF active module; 100a - another antenna; 200 - support frame; 300 - baseband processing unit;

[0051] 400-connecting wire; 500-grounding device. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be understood as being limited to the embodiments set forth herein. The same figure marks in the figures represent the same or similar structures, and thus their repeated description will be omitted. The words expressing position and direction described in the embodiments of the present application are all explained with reference to the accompanying drawings as examples, but changes can be made as needed, and the changes made are all included in the scope of protection of the present application. The drawings in the embodiments of the present application are only used to illustrate the relative position relationship and do not represent the true proportion.

[0053] It should be noted that the following description sets forth specific details to facilitate understanding of the present application. However, the present application can be implemented in a variety of other ways than those described herein, and those skilled in the art may make similar generalizations without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0054] In order to facilitate the understanding of the antenna and base station provided in this application, the application scenario is first introduced below. Figure 1 exemplarily shows a schematic diagram of a system architecture applicable to an embodiment of the present application. As shown in Figure 1, the system architecture may include a base station 1000 and a terminal 2000. Wireless communication can be achieved between the base station 1000 and the terminal 2000. The base station 1000 can also be called an access network device, which can be located in a base station subsystem (BBS), a terrestrial radio access network (UMTS terrestrial radio access network, UTRAN) or an evolved universal terrestrial radio access (E-UTRAN), and is used to provide signal cell coverage to achieve communication between the terminal device and the wireless network. Specifically, the base station 1000 can be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a (code division multiple access, CDMA) system, or a node B (NB) in a wideband code division multiple access (WCDMA) system, or an evolutionary node B (eNB or eNodeB) in a long term evolution (LTE) system, or a wireless controller in a cloud radio access network (CRAN) scenario. Alternatively, the base station 1000 can also be a relay station, an access point, a vehicle-mounted device, a wearable device, a g-node (gNodeB or gNB) in a new radio (NR) system, an access network device in a future evolved network, etc., and the embodiments of the present application are not limited thereto.

[0055] The base station 1000 is equipped with an antenna 100 to transmit signals in space. Figure 2 shows a schematic diagram of an application scenario of the antenna 100 equipped with the base station 1000 shown in Figure 1. Figure 2 shows a support frame 200 and an antenna 100 structure. The support frame 200 can be, but is not limited to, a pole or a tower. The antenna 100 is connected to the support frame 200, such as a pole or a tower, to facilitate the reception or transmission of signals by the antenna 100. The antenna cover 10 has good electromagnetic wave penetration characteristics in terms of electrical performance and can withstand the influence of harsh external environments in terms of mechanical performance, thereby protecting the antenna system from external environmental influences.

[0056] Currently, as the gain and aperture of antennas increase, their structural dimensions are also increasing. In addition, with the increase in communication rates and bandwidth, antennas are usually integrated with multiple input multiple output (MIMO) technology, that is, multiple columns of radiating units for signal transmission or reception are integrated into one antenna, and the above-mentioned integrated design of the antenna will also lead to an increase in the size of the antenna. In addition, the size of the antenna is also related to the operating frequency band. The lower the operating frequency band, the larger the size of the antenna that needs to be matched. From the above introduction to base stations, we can know that antennas are usually hung high on support frames such as poles or towers. The larger the size of the antenna, the greater the wind resistance it is subject to, and the more site space the antenna occupies.

[0057] In view of this, the antenna provided in this application is divided into multiple antenna subarrays, and each antenna subarray is spaced apart to form a ventilation zone. This effectively reduces the antenna's wind resistance while ensuring that the antenna meets the design requirements for dimensions. This helps improve the antenna's structural reliability and extend its service life. To facilitate understanding of the technical solution of this application, the antenna provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] 3 is a schematic diagram of the structure of an antenna 100 provided in an embodiment of the present application. The antenna 100 includes at least two antenna subarrays 1001 and a mounting structure 1002. The at least two antenna subarrays 1001 are connected by the mounting structure 1002 to form an antenna array.

[0059] Each antenna subarray 1001 includes an antenna cover 10. When the antenna cover 10 is specifically set up, as shown in Figure 3, the antenna cover 10 includes a cover body 1 and two end covers 2. The two end covers 2 are respectively arranged at the two ends of the cover body 1, and each end cover 2 blocks one end of the cover body 1, so that the antenna cover 10 forms a closed cavity, so that the antenna cover 10 can provide dust-proof, waterproof and other protection for the components accommodated in its cavity.

[0060] 4 is a cross-sectional view taken along line AA of the antenna 100 shown in FIG3. In the embodiment of the present application, the cover body 1 of the radome 10 may be an integrated structure, that is, the cover body 1 may be manufactured by an integrated molding process such as extrusion, which is beneficial for improving the structural reliability of the radome 10.

[0061] In some other possible embodiments of the present application, the cover body 1 of the antenna cover 10 can also be an assembled structure, that is, the cover body 1 can be a structure assembled from multiple parts to enhance the flexibility of the setting of the antenna cover 10.

[0062] In addition, in the present application, the cover body 1 may be a cylindrical structure, and the cross-sectional shape of the cover body 1 is not limited to the rounded rectangle shown in FIG5 , but may also be circular, elliptical or teardrop-shaped, etc., which are not listed one by one here.

[0063] Continuing with FIG4 , each antenna subarray 1001 further includes a reflector 40 and a radiating element 30. The reflector 40 and radiating element 30 are housed in the radome 10, with the radiating element 30 located on one side of the reflector 40 and connected to the reflector 40. Furthermore, the reflector 40 may be connected to the inner sidewall of the radome 10, using, but not limited to, a snap-on connection, adhesive bonding, or threaded connection, so that the reflector 40 can reliably support the radiating element 30.

[0064] In the embodiment of the present application, the radiation unit 30 may also be referred to as an antenna vibrator, vibrator, etc. The radiation unit 30 is a unit that constitutes the basic structure of the antenna array, which can effectively radiate or receive antenna signals. The frequencies of different radiation units 30 may be the same or different. The reflector 40 may also be referred to as a base plate, an antenna panel, or a metal reflective surface, etc. The reflector 40 can reflect the received signal and focus it on the receiving point. The radiation unit 30 is placed on one side of the reflector 40, which can not only greatly enhance the signal reception or transmission capability, but also block and shield interference signals from the back of the reflector 40. Among them, in the present application, the back of the reflector 40 refers to the side of the reflector 40 opposite to the side where the radiation unit 30 is set.

[0065] In the embodiment of the present application, as shown in Figures 3 and 4, the mounting structure 1002 is located outside the radome 10 of each antenna subarray 1001. Therefore, when connecting each antenna subarray 1001 to the mounting structure 1002, at least one of the radome 10 or the reflector 40 of each antenna subarray 1001 can be connected to the mounting structure 1002. In specific implementations, the cover body 1 of the radome 10 of the antenna subarray 1001 can be connected to the mounting structure 1002 using fasteners such as bolts, or the reflector 40 of the antenna subarray 1001 can be connected to the mounting structure 1002 using fasteners passing through the radome 10. Alternatively, both the radome 10 and the reflector 40 of the antenna subarray 1001 can be connected to the mounting structure 1002.

[0066] In addition, referring to Figures 3 and 4 together, in the antenna 100 provided in the present application, any two adjacent antenna subarrays 1001 are arranged at intervals, so that there is a ventilation gap between any two adjacent antenna subarrays 1001, which can help reduce the wind resistance of the antenna 100 and improve the structural reliability of the antenna 100.

[0067] It is worth mentioning that the present application does not limit the spacing between two adjacent antenna subarrays 1001. For example, in one possible embodiment, the spacing between any two adjacent antenna subarrays 1001 can be equal to meet the array performance requirements of the antenna 100, such as electrical performance and physical performance.

[0068] From the above description of the reflector 40 and the radiating element 30 of the antenna subarray 1001, it can be understood that in each antenna subarray 1001, in order to improve the reflection effect of the reflector 40 on the radiation signal of the radiating element 30, the end of the reflector 40 can be made to abut against the inner wall of the antenna cover 10, so that the area of ​​the reflector 40 is larger. In addition, the reflector 40 can also be a continuous plate-like structure to improve the reflection performance of the reflector 40. The above-mentioned increase in the area of ​​the reflector 40 and the setting of the reflector 40 as a continuous plate-like structure can effectively ensure the front-to-back ratio performance of the antenna subarray 1001. For the convenience of description in this application, the direction from the reflector 40 to the radiating element 30 can be defined as the front of the antenna subarray 1001, and the direction from the radiating element 30 to the reflector 40 can be defined as the rear of the antenna subarray 1001. Based on this, it can be understood that the front-to-back performance ratio of the antenna subarray 1001 refers to the ratio of the energy radiated forward by the antenna subarray 1001 to the energy radiated backward by the antenna subarray 1001. The larger the ratio, the smaller the energy radiated backward by the antenna subarray 1001, and the smaller its impact on other antennas located behind the antenna subarray 1001.

[0069] In the antenna 100 provided in the present application, the reflector 40 of the antenna subarray 1001 can be set to other possible forms in addition to the continuous plate structure described above. For example, refer to Figure 5, which is a structural schematic diagram of the reflector 40 provided in an embodiment of the present application. The reflector 40 shown in Figure 5 is a hollow plate structure, wherein the hollow pattern 401 of the reflector 40 can be specifically set according to the wavelength of the radio frequency signal in the working frequency band of the antenna subarray 1001. For example, it can be a periodic, regular grid pattern, or a non-periodic, irregular pattern, to ensure that the antenna subarray 1001 has a high front-to-back ratio performance.

[0070] In addition, the hollow portion of the hollow pattern 401 of the reflector 40 shown in FIG5 may also be filled with an insulating medium, such as plastic, which may be beneficial for improving the front-to-back ratio performance of the antenna subarray 1001 .

[0071] Since a base station generally includes multiple antennas 100 with different working frequency bands at the same time, usually, these multiple antennas 100 all need to be installed on separate roof surfaces, which limits the number of antennas 100 that can be set in the base station. From the above introduction to the reflector 40 of the antenna 100 provided in the present application, it can be seen that when the reflector 40 is a hollow plate structure, the reflector 40 can be made frequency selective by adjusting the hollow pattern 401 of the reflector 40, so that the reflector 40 can reflect radio frequency signals of a specific frequency and transmit radio frequency signals of a specific frequency. Based on this, in an embodiment of the present application, when the hollow pattern 401 of the reflector 40 is specifically set, the wavelength of radio frequency signals of other working frequency bands can also be taken into consideration, so that the antenna 100 provided in the present application can be stacked with antennas of other working frequency bands. For example, reference can be made to Figure 6, which is a structural schematic diagram of the stacked arrangement of the antenna 100 provided in an embodiment of the present application and another antenna 100a. In Figure 6, another antenna 100a is arranged behind the antenna 100 provided by the present application. Since the reflector 40 of the antenna subarray 1001 of the antenna 100 provided by the present application is a hollow plate structure, and since any two adjacent antenna subarrays 1001 are arranged at intervals, the antenna 100 provided by the present application can have almost no obstruction to the radio frequency signals within a specific frequency band radiated by the other antenna 100a located behind it, so that the other antenna 100a located behind it can work normally, thereby realizing the co-planar installation of antennas with different working frequency bands. It can realize the upgrade and expansion of the antenna without changing the existing antenna, which is conducive to reducing the upgrade cost of the antenna and the installation cost of the antenna.

[0072] It is worth noting that the structure shown in Figure 6 does not limit the specific configuration of the other antenna 100a, which can be a traditional antenna or the antenna provided in this application. In addition, Figure 6 only shows a stacked configuration of two antennas. In some possible embodiments, a stacked configuration of three or more antennas can be achieved by designing the hollow pattern of the reflector.

[0073] In the above embodiments of the present application, the reflector 40 is described as a single-layer structure. In addition, in the present application, the reflector 40 can also be a multi-layer structure. For specific implementation, reference can be made to FIG7 , which is another cross-sectional view of the antenna subarray 1001 provided in the present application, which can be used to illustrate another structure of the reflector 40. The reflector 40 shown in FIG7 includes at least two sub-reflector layers, which are stacked along a side facing away from the radiating element 30, and any two adjacent sub-reflector layers are spaced apart.

[0074] Continuing with FIG. 7 , taking the example of a reflector 40 comprising a sub-reflector layer 402a and a sub-reflector layer 402b, the sub-reflector layers 402a and 402b are stacked in a direction away from the radiating element 30, with adjacent sub-reflector layers 402a and 402b spaced apart. The above-described design of the reflector 40 can improve the reflective performance of the reflector 40 for RF signals radiated by the radiating element 30 by combining at least two sub-reflector layers. Furthermore, by configuring the reflector 40 with at least two sub-reflector layers, the overall width of the reflector 40 can be reduced, thereby facilitating a reduction in the width of the antenna subarray 1001. This can increase the spacing between two adjacent antenna subarrays 1001 without changing the overall size of the antenna 100, or reduce the size of the antenna 100 while maintaining its performance, thereby facilitating reduced wind resistance.

[0075] In addition, as shown in FIG7 , each sub-reflector layer of the reflector 40 is connected to the inner sidewall of the radome 10, and the connection method may be, but is not limited to, snap-fitting or bonding. Alternatively, in the antenna subarray 1001 shown in FIG8 , sub-reflector layer 402b is connected to the inner sidewall of the radome 10, and sub-reflector layer 402b and the adjacent sub-reflector layer 402a are connected via a rigid support member 70. The connection method between sub-reflector layer 402a and the rigid support member 70 may be, but is not limited to, welding or threading. In the antenna subarray 1001 shown in FIG8 , by connecting at least one sub-reflector layer to the inner sidewall of the radome 10, and connecting two adjacent sub-reflector layers via the rigid support member 70, at least one sub-reflector layer can be connected to the inner sidewall of the radome 10 after the two adjacent sub-reflector layers are connected to the rigid support member 70, thereby effectively improving the assembly efficiency of the reflector 40 and the radome 10.

[0076] Continuing with FIG8 , in the present application, the sub-reflector layer 402b farthest from the radiating unit 30 can be disposed on the inner sidewall of the radome 10. The sub-reflector layer 402b can be disposed on the radome 10 by, but is not limited to, coating, gluing, or threaded connection. This effectively simplifies the connection between the reflector 40 and the radome 10.

[0077] It is worth mentioning that when the reflector 40 of the antenna subarray 1001 is arranged in a manner of multiple sub-reflector layers, each sub-reflector layer can be a continuous plate-like structure to ensure that the reflector 40 of the antenna subarray 1001 has the performance of reflecting the radio frequency signals radiated by the radiating unit 30. In addition, each sub-reflector layer can also be set as a hollow plate-like structure. Through the combined design of the hollow patterns of the multiple sub-reflector layers, while ensuring the radiation performance of the antenna subarray 1001, radio frequency signals of other specific frequency bands can also be radiated through the reflector 40, thereby providing the possibility of stacking antennas with multiple different operating frequency bands.

[0078] Referring to Figure 9, Figure 9 is another cross-sectional view of the antenna subarray 1001 provided in the present application. At least one sub-reflector layer of the reflector 40 of the antenna subarray 1001 includes two oppositely disposed bends 4021, each of which bends along the direction from the reflector 40 to the radiation unit 30. This can effectively improve the performance of the reflector 40 in reflecting the RF signal radiated by the radiation unit 30, while also facilitating a reduction in the overall width of the reflector 40, thereby facilitating a reduction in the width of the antenna subarray 1001. It is worth mentioning that in the present application, the width direction of the reflector 40 is perpendicular to the axial direction of the antenna cover 10.

[0079] In the present application, the bending angles of the bent portions 4021 of the sub-reflector layer are not limited. For example, the angle between each bent portion 4021 and the portion of the sub-reflector layer located between the two bent portions 4021 is greater than or equal to 90°. For example, in the antenna subarray 1001 shown in FIG9 , the angles between the two bent portions 4021 of a sub-reflector layer 402a of the reflector 40 and the portion of the sub-reflector layer 402a located between the two bent portions 4021 are both 90°, while the angles between the two bent portions 4021 of another sub-reflector layer 402b of the reflector 40 and the portion of the sub-reflector layer 402b located between the two bent portions 4021 are both greater than 90°. The above is only an illustrative description of some specific settings of the bending portion 4021 of the sub-reflective plate layer. On this basis, some adaptive deformations can be made to the settings of the bending portion 4021 of each sub-reflective plate layer. For example, the bending angles of the two bending portions 4021 of each sub-reflective plate layer can be different, which should be understood to fall within the scope of protection of this application.

[0080] Continuing with FIG9 , each antenna subarray 1001 may further include two metal baffles 80, which are disposed opposite each other and connected to the inner wall of the radome 10. The two metal baffles 80 may be made of, but not limited to, copper or aluminum. Furthermore, each metal baffle 80 may be connected to the inner wall of the radome 10 by bonding or threading, or the metal baffles 80 may be a metal coating applied to the inner wall of the radome 10.

[0081] It is understood that the two metal baffles 80 of each antenna subarray 1001 are located at the two ends of the reflector 40 facing the adjacent antenna subarray 1001. Therefore, in each antenna subarray 1001, the arrangement direction of the two metal baffles 80 is the same as the arrangement direction of the two bent portions 4021 of each sub-reflector layer. Furthermore, as shown in FIG10 , the radiating element 30 may be located between the two metal baffles 80. In this way, the two metal baffles 80 can reflect the RF signals radiated by the radiating element 30, which helps improve the front-to-back ratio performance of the antenna subarray 1001, thereby improving the signal radiation performance of the antenna subarray 1001.

[0082] Referring to Figure 10 , Figure 10 is another cross-sectional view of the antenna subarray 1001 provided in this application. Compared to the antenna subarray 1001 shown in Figure 9 , the radiating element 30 of antenna subarray 1001 in Figure 10 includes a first radiating portion 301 and a second radiating portion 302 connected to each other. The first radiating portion 301 and the second radiating portion 302 are arranged at a predetermined angle. The first radiating portion 301 is connected to the reflector 40, and the second radiating portion 302 bends from the first radiating portion 301 toward the reflector 40. In the present application, the radiation unit 30 of the antenna subarray 1001 is designed in the above-mentioned two-part bending manner, which can effectively reduce the board area occupied by the radiation unit 30 on the reflector 40, which is conducive to reducing the size of the reflector 40, thereby facilitating the reduction of the width of the antenna subarray 1001. In this way, the distance between two adjacent antenna subarrays 1001 can be increased without changing the overall size of the antenna 100, or the size of the antenna 100 can be reduced while ensuring the performance of the antenna 100, thereby helping to reduce the wind resistance of the antenna 100.

[0083] This application does not limit the angle between the first radiating portion 301 and the second radiating portion 302. For example, in the antenna subarray 1001 shown in Figure 10, the angle between the first radiating portion 301 and the second radiating portion 302 is 90°, that is, the first radiating portion 301 and the second radiating portion 302 are arranged vertically. In other possible embodiments, the first radiating portion 301 and the second radiating portion 302 can also be arranged at other angles, which are not listed here one by one.

[0084] Continuing with reference to FIG10 , the antenna subarray 1001 further includes a resistive layer 90 , which is connected to the inner wall of the antenna cover 10 . The connection method may be, but is not limited to, bonding or threaded connection, or the resistive layer 90 is a metal coating applied to the inner wall of the antenna cover 10 .

[0085] As shown in FIG10 , the radiating element 30 is located between the band-resistance reactance layer 90 and the reflector 40. Furthermore, the band-resistance reactance layer 90 is a metal hollow layer, and the RF signal radiated by the radiating element 30 can be radiated through the hollow portion of the band-resistance reactance layer 90. By properly designing the hollow pattern of the band-resistance reactance layer 90, the bandwidth of the RF signal radiated by the radiating element 30 can be adjusted, thereby improving the signal radiation performance of the antenna subarray 1001.

[0086] In the embodiment of the present application, as shown in FIG10 , the projection of the resistive layer 90 on the reflector 40 covers the projection of the radiating element 30 on the reflector 40. This can enhance the effect of the resistive layer 90 on adjusting the bandwidth of the RF signal radiated by the radiating element 30, thereby improving the electrical performance of the antenna subarray 1001.

[0087] It is worth noting that the descriptions of Figures 9 and 10 above are directed to an antenna subarray 1001 including a reflector 40 having at least two sub-reflector layers. However, when the reflector 40 of the antenna subarray 1001 is a single-layer structure, the various structures of the antenna subarray 1001 may also be configured with reference to the antenna subarray 1001 shown in Figures 9 and 10 above. For example, the single-layer reflector 40 may also be provided with a bent portion 4021, the radiating element 30 may also be designed with two bent portions, and the antenna subarray 1001 may also be provided with two metal baffles 80 and a resistive layer 90. The specific configurations are not further described here.

[0088] In the description of the antenna 100 in the above embodiments of the present application, the structure of the antenna subarray 1001 of the antenna 100 is described using one antenna subarray 1001 as an example. It is understood that the configuration of each antenna subarray 1001 of the antenna 100 may be the same or different. For example, reference is made to FIG11 , which is another schematic structural diagram of the antenna 100 according to an embodiment of the present application, illustrating the configuration of the radiating elements 30 in the antenna 100 on the reflector 40. Each antenna subarray 1001 includes at least two radiating elements 30, which may be arranged in an array on the reflector 40. Specifically, in at least one antenna subarray 1001, the at least two radiating elements 30 may be arranged sequentially along the axial direction of the radome 10, i.e., the at least two radiating elements 30 may be arranged to form a radiating element array. In another antenna subarray 1001, the at least two radiating elements 30 may be divided into two or more radiating element arrays arranged along the axial direction of the radome 10.

[0089] It can be understood that the above embodiments are only some exemplary descriptions of the specific setting methods of the antenna 100 provided in this application. On this basis, some adaptive deformations can be made to the antenna subarray 1001, or the various structures in the antenna subarray 1001 introduced in different embodiments can be reasonably combined. The various possible structures of the antenna subarray 1001 provided in this application are not introduced one by one here, but they should all be understood to fall within the scope of protection of this application.

[0090] As can be seen from the above description, at least two antenna subarrays 1001 of antenna 100 are connected via a mounting structure 1002. In the above embodiments, such as the antenna 100 shown in FIG3 or FIG4 , the mounting structure 1002 may be a beam structure, and the antenna 100 may include at least two mounting structures 1002. These at least two mounting structures 1002 may be spaced apart along the axial direction of the radome 10 of each antenna subarray 1001. In addition, at least one of the radome 10 or the reflector 40 of each antenna subarray 1001 is connected to each mounting structure 1002, thereby reliably connecting the at least two antenna subarrays 1001, which helps improve the structural reliability of the antenna 100.

[0091] In the embodiment of the present application, in addition to the above-described configuration, the mounting structure 1002 of the antenna 100 may also be configured in other possible configurations. For example, referring to FIG12a, FIG12a is another schematic structural diagram of the antenna 100 provided in the embodiment of the present application. FIG12a is used to illustrate one configuration of the mounting structure 1002 of the antenna 100. In the antenna 100 shown in FIG12a, the mounting structure 1002 is a bent structure. The antenna 100 also includes at least two mounting structures 1002, which are spaced apart. For example, the at least two mounting structures 1002 may be spaced apart along the axial direction of the radome 10 of each antenna subarray 1001. In addition, at least one of the radome 10 or the reflector 40 of each antenna subarray 1001 is connected to each mounting structure 1002, thereby reliably connecting the at least two antenna subarrays 1001, which helps improve the structural reliability of the antenna 100.

[0092] In the antenna 100 shown in FIG12a , the mounting structure 1002 is bent into an arc. Furthermore, the mounting structure 1002 can be bent into other possible shapes. For example, in the antenna 100 shown in FIG12b , the mounting structure 1002 is bent into a U-shape. Furthermore, in the antenna 100 shown in FIG12c , the mounting structure 1002 is bent into a V-shape. Furthermore, in the antenna 100 shown in FIG12d , the mounting structure 1002 is bent into a triangle.

[0093] While the mounting structure 1002 of the antenna 100 described in the above embodiments all has a fixed configuration, in some possible embodiments of the present application, the configuration of the mounting structure 1002 can be made adjustable. For example, in the antenna 100 shown in FIG12e , the mounting structure 1002 includes a first rotating portion 10021 and a second rotating portion 10022, which are hingedly connected via a hinge axis 10023. This allows the angle between the first rotating portion 10021 and the second rotating portion 10022 to be adjustable. Furthermore, at least one of the radome 10 or reflector 40 of at least one of the at least two antenna subarrays 1001 is connected to the first rotating portion 10021, and at least one of the radome 10 or reflector 40 of at least one of the at least two antenna subarrays 1001 is connected to the second rotating portion 10022. In the antenna 100 shown in Figure 12e, the overall shape of the antenna 100 can be adjusted through the relative rotation of the first rotating part 10021 and the second rotating part 10022, so that the antenna 100 can meet the requirements of different application scenarios for the shape of the antenna 100, which is conducive to expanding the scope of application of the antenna 100.

[0094] In the above-described embodiment of the present application, the mounting structure 1002 can be an independent structure. The mounting structure 1002 can be connected to each antenna subarray 1001 by connecting to the cover body 1 of the antenna cover 10 or the reflector 40 of each antenna subarray 1001. In some possible embodiments, the mounting structure 1002 can be integrated with some structures of the antenna subarray 1001. For example, in the antenna 100 shown in FIG13 , the mounting structure 1002 can be integrally formed with the end caps 2 provided on the same side of at least two antenna subarrays 1001. This helps to simplify the structure of the antenna 100 and improve the assembly efficiency of the antenna 100.

[0095] It is worth mentioning that in the antenna 100 shown in Figure 13, there are at least two mounting structures 1002, one of which is integrally formed with the end cover 2 set on the same side of at least two antenna subarrays 1001, and the other mounting structure is integrally formed with the end cover 2 set on the other side of at least two antenna subarrays 1001, so as to further improve the assembly efficiency of the antenna 100.

[0096] The above embodiments are only some exemplary descriptions of the specific setting methods of the mounting structure 1002. On this basis, some adaptive deformations can be made to the setting methods of the mounting structure 1002. Various possible setting methods of the mounting structure 1002 are not introduced one by one here, but they should all be understood to fall within the scope of protection of this application.

[0097] In addition to the above-mentioned structure, the antenna 100 provided in the embodiment of the present application may also include an RF active module 1003. For specific implementation, reference may be made to FIG14a, which is another schematic diagram of the structure of the antenna 100 provided in the embodiment of the present application. In this antenna 100, the RF active module 1003 is located outside each antenna subarray 1001, and the RF active module 1003 is connected to at least one of the antenna cover 10 or the reflector 40 of each antenna subarray 1001. The connection method may be, but is not limited to, a snap connection, welding, riveting, or threaded connection. In addition, the RF active module 1003 is electrically connected to the radiating element 30 of each antenna subarray 1001. The RF active module 1003 and each radiating element 30 can be electrically connected by plugging. This facilitates the convenience of electrically connecting the RF active module 1003 to each radiating element 30 and saves the connection cables between the RF active module 1003 and the radiating element 30, thereby reducing the cost of the antenna 100.

[0098] Referring to Figure 14b, Figure 14b is another schematic diagram of the structure of the antenna 100 provided in an embodiment of the present application. Unlike the antenna 100 shown in Figure 14a above, the antenna 100 shown in Figure 14b includes at least two RF active modules 1003, which are located outside each antenna subarray 1001. Each RF active module 1003 is connected to at least one of the antenna cover 10 or the reflector 40 of at least one antenna subarray 1001, and each RF active module 1003 is electrically connected to the radiating element 30 of at least one antenna subarray 1001. In a specific implementation, as shown in FIG14b , the antenna 100 includes two RF active modules 1003 and four antenna subarrays 1001. The two RF active modules 1003 can be connected to form a whole and then connected to at least one of the antenna covers 10 or reflectors 40 of the four antenna subarrays 1001. In addition, each RF active module 1003 is electrically connected to the radiating elements 30 of the two antenna subarrays 1001. The antenna 100 provided in this application adopts the design shown in FIG14b , which can effectively improve the flexibility of the configuration of the RF active module 1003 and the flexibility of the connection between the RF active module 1003 and the radiating elements 30 of at least two antenna subarrays 1001.

[0099] In addition, in order to further enhance the flexibility of the RF active module 1003 setting, reference may be made to FIG14c, which is another structural schematic diagram of the antenna 100 provided in an embodiment of the present application. The antenna 100 shown in FIG14c includes at least two RF active modules 1003, and the at least two RF active modules 1003 are arranged in a one-to-one correspondence with at least two antenna subarrays 1001, that is, each RF active module 1003 is located outside the antenna cover 10 of a corresponding antenna subarray 1001, and each RF active module 1003 is electrically connected to the radiation unit 30 of a corresponding antenna subarray 1001. With such a design, the flexibility of the overall morphology design of the antenna 100 can also be effectively enhanced, so that the antenna 100 can be applied to a wider range of scenarios.

[0100] It can be understood that no matter which of the above-mentioned settings is adopted for the RF active module 1003 of the antenna 100, the RF active module 1003 can be reasonably designed according to specific needs so that each antenna subarray 1001 can work independently and the antenna subarrays 1001 do not affect each other; or each antenna subarray 1001 can be used in conjunction with each other.

[0101] It is worth mentioning that the above embodiments are only some exemplary descriptions of the specific configuration of the antenna 100 provided in this application. On this basis, the antenna 100 can also be adaptively modified, or the various structures of the antenna introduced in different embodiments can be reasonably combined. For example, in a possible embodiment of the present application, the antenna 100 also includes at least two antenna subarrays 1001 and a mounting structure 1002. Each antenna subarray 1001 includes a radome 10, a reflector 40, and a radiation unit 30. The radiation unit 30 is located on one side of the reflector 40, and the radiation unit 30 is connected to the reflector 40. The reflector 40 and the radiation unit 30 are accommodated in the radome 10. The radome 10 includes a cover body 1 and two end caps 2. The two end caps 2 are respectively arranged at the two ends of the cover body 1, and each end cap 2 blocks one end of the cover body 1. In this embodiment, the cover body 1 of the antenna cover 10 of the antenna subarray 1001 is not an integrated structure, that is, the cover body 1 of the antenna cover 10 is an assembled structure. In this case, the reflector 40 of the antenna subarray 1001 can also be configured as a hollow plate structure. The other structures of the antenna subarray 1001 can be configured with reference to any of the above embodiments and are not described in detail here. In addition, the various possible configurations of the antenna 100 provided in this application are not described here one by one, but they should all be understood to fall within the scope of protection of this application.

[0102] When the antenna 100 provided in any of the above embodiments of the present application is applied to the base station 1000 shown in FIG2 , the shape and number of the antenna 100 can be selected according to the specific application scenario. For example, referring to FIG15a , FIG15a is a schematic diagram of a connection structure between the antenna 100 and the support frame 200 in the base station 1000 shown in FIG2 . The base station 1000 may include a support frame 200 and three antennas 100 , wherein the support frame 200 may be, but is not limited to, a pole or a tower. The mounting structures 1002 of the three antennas 100 are all beam structures, that is, the antennas 100 are designed in a flat plate shape. The three antennas 100 are all connected to the support frame 200 and are arranged at equal intervals around the support frame 200. In addition, the radiating element 30 of each antenna 100 is located on the side of the reflector 40 facing away from the support frame 200. This enables three-sector signal coverage of the base station 1000, that is, 360° full coverage of the signal radiated by the antenna 100.

[0103] In addition, referring to Figure 15b, Figure 15b is a schematic diagram of another connection structure between the antenna 100 and the support frame 200 in the base station shown in Figure 2. Here, the base station 1000 includes only two flat-plate antennas 100 to achieve signal coverage for two sectors of the base station 1000. The specific configuration of the base station 1000 is similar to that of the base station 1000 shown in Figure 15a and will not be described in detail here.

[0104] For example, in the connection structure between the antenna 100 and the support frame 200 shown in Figure 15c, the mounting structure 1002 of the antenna 100 is an arc-shaped bending structure, so at least two antenna arrays 1001 of the antenna 100 can be arranged along the arc. By using two antennas 100 in the base station 1000, 360° full coverage of the radiated signal can be achieved.

[0105] The above embodiments are only some exemplary descriptions of the specific configuration methods of the antenna 100 provided in the base station 1000 according to the embodiments of the present application. On this basis, the number and shape of the antenna 100 can be adaptively modified according to different application scenarios. They will not be introduced one by one here, but they should all be understood to fall within the scope of protection of this application.

[0106] In the embodiment of the present application, with continued reference to FIG. 2 , the base station 1000 may further include a baseband processing unit 300, which may be connected to the antenna 100 via an active RF module 1003. In some embodiments, the active RF module 1003 may also be referred to as a remote radio unit (RRU), and the baseband processing unit 300 may also be referred to as a baseband unit (BBU).

[0107] As shown in FIG2 , in an embodiment of the present application, the RF active module 1003 can be integrated with the antenna 100. The baseband processing unit 300 is located at the distal end of the antenna 100. In other embodiments, the RF active module 1003 and the baseband processing unit 300 can also be located at the distal end of the antenna 100. The RF active module 1003 and the baseband processing unit 300 can be connected via a connecting wire 400.

[0108] In addition, as shown in Figure 2 , a grounding device 500 can be provided between the baseband processing unit 300 and the connecting wire 400. The grounding device 500 generally comprises a grounding electrode buried underground. A seal can be provided at the connection between the antenna 100 and the connecting wire 400, and a seal can also be provided at the connection between the grounding device 500 and the connecting wire 400. Specifically, the seal can include at least one of insulating sealing tape and polyvinyl chloride (PVC) insulating tape. Of course, the seal can also be of other structures and is not limited to tape.

[0109] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An antenna, characterized in that: The invention comprises at least two antenna subarrays and a mounting structure, each of the antenna subarrays comprises a radome, a reflector and a radiation unit, the radiation unit is located on one side of the reflector and connected to the reflector, the reflector and the radiation unit are accommodated in the radome, wherein: The radome comprises a radome and two end covers, the radome is an integrated structure, the two end covers are respectively arranged at two ends of the radome, and each end cover blocks one end of the radome; the reflector is connected to the inner side wall of the radome; The mounting structure is located outside the antenna cover of each antenna subarray, at least one of the antenna cover or the reflector of each antenna subarray is connected to the mounting structure, and any two adjacent antenna subarrays are arranged at intervals.

2. The antenna according to claim 1, characterized in that The reflecting plate is a continuous plate structure, or the reflecting plate is a hollow plate structure.

3. The antenna according to claim 1 or 2, characterized in that: The reflection plate comprises at least two sub-reflection plate layers, and the at least two sub-reflection plate layers are stacked along a side away from the radiation unit, and any two adjacent sub-reflection plate layers are spaced apart.

4. The antenna according to claim 3, characterized in that Each of the sub-reflection layers is connected to the inner side wall of the radome, or at least one of the sub-reflection layers is connected to the inner side wall of the radome, and two adjacent sub-reflection plate layers are connected via a rigid support member.

5. The antenna according to claim 3 or 4, characterized in that: At least one of the sub-reflector layers includes two oppositely disposed bending portions, and each of the bending portions is bent along a direction from the reflector to the radiation unit.

6. The antenna according to any one of claims 1 to 5, characterized in that: The radiation unit includes a first radiation part and a second radiation part connected to each other, wherein the first radiation part and the second radiation part are arranged at a set angle, the first radiation part is connected to the reflection plate, and the second radiation part is bent from the first radiation part toward the reflection plate.

7. The antenna according to claim 6, characterized in that Each of the antenna subarrays further includes a band-resistance reactance layer, which is a hollow metal layer. The radiation unit is located between the band-resistance reactance layer and the reflector, and the band-resistance reactance layer is connected to the inner wall of the antenna cover.

8. The antenna according to claim 7, characterized in that The projection of the band-blocking reactance layer on the reflection plate covers the projection of the radiation unit on the reflection plate.

9. The antenna according to any one of claims 1 to 8, characterized in that: The cross-sectional shape of the cover body of the antenna cover is elliptical, circular or rounded rectangular.

10. The antenna according to any one of claims 1 to 9, characterized in that: The mounting structure is a bent structure, the antenna comprises at least two mounting structures, and the two mounting structures are arranged at intervals; at least one of the antenna cover or the reflector of each antenna subarray is connected to each mounting structure.

11. The antenna according to any one of claims 1 to 10, characterized in that: The mounting structure includes a first rotating part and a second rotating part, the first rotating part is hinged to the second rotating part, and at least one of the antenna cover or the reflector of at least one of the at least two antenna subarrays is connected to the first rotating part; at least one of the antenna cover or the reflector of at least one of the at least two antenna subarrays is connected to the second rotating part.

12. The antenna according to any one of claims 1 to 11, characterized in that: The mounting structure is integrally formed with the end caps arranged on the same side of at least two antenna subarrays.

13. The antenna according to any one of claims 1 to 12, characterized in that: The antenna also includes a radio frequency active module, which is located outside the antenna cover of each antenna subarray, and is connected to at least one of the antenna cover or the reflector of each antenna subarray, and is electrically connected to the radiation unit of each antenna subarray.

14. The antenna according to any one of claims 1 to 12, characterized in that: The antenna also includes at least two RF active modules, and the at least two RF active modules are located outside the antenna cover of each of the antenna subarrays. Each of the RF active modules is connected to at least one of the antenna cover or the reflector of at least one of the antenna subarrays, and each of the RF active modules is electrically connected to the radiation unit of at least one of the antenna subarrays.

15. The antenna according to claim 14, characterized in that The at least two RF active modules are arranged in a one-to-one correspondence with the at least two antenna subarrays, each of the RF active modules is located outside the antenna cover of a corresponding antenna subarray, and each of the RF active modules is electrically connected to the radiation unit of a corresponding antenna subarray.

16. An antenna, characterized in that: The invention comprises at least two antenna subarrays and a mounting structure, each of the antenna subarrays comprises a radome, a reflector and a radiation unit, the radiation unit is located on one side of the reflector and connected to the reflector, the reflector and the radiation unit are accommodated in the radome, wherein: The antenna cover includes a cover body and two end covers, the two end covers are respectively arranged at two ends of the cover body, and each end cover blocks one end of the cover body; The reflector is connected to the inner wall of the radome, and the reflector is a hollow plate structure; The mounting structure is located outside the antenna cover of each antenna subarray, at least one of the antenna cover or the reflector of each antenna subarray is connected to the mounting structure, and any two adjacent antenna subarrays are arranged at intervals.

17. The antenna according to claim 16, characterized in that The reflection plate comprises at least two sub-reflection plate layers, and the at least two sub-reflection plate layers are stacked along a side away from the radiation unit, and any two adjacent sub-reflection plate layers are spaced apart.

18. The antenna according to claim 17, characterized in that Each of the sub-reflection layers is connected to the inner side wall of the radome, or at least one of the sub-reflection layers is connected to the inner side wall of the radome, and two adjacent sub-reflection plate layers are connected via a rigid support member.

19. The antenna according to claim 17 or 18, characterized in that: At least one of the sub-reflector layers includes two oppositely disposed bending portions, and each of the bending portions is bent along a direction from the reflector to the radiation unit.

20. The antenna according to any one of claims 16 to 19, characterized in that: The radiation unit includes a first radiation part and a second radiation part connected to each other, wherein the first radiation part and the second radiation part are arranged at a set angle, the first radiation part is connected to the reflection plate, and the second radiation part is bent from the first radiation part toward the reflection plate.

21. The antenna according to claim 20, characterized in that Each of the antenna subarrays further includes a band-resistance reactance layer, which is a hollow metal layer. The radiation unit is located between the band-resistance reactance layer and the reflector, and the band-resistance reactance layer is connected to the inner wall of the antenna cover.

22. The antenna according to claim 21, characterized in that The projection of the band-blocking reactance layer on the reflection plate covers the projection of the radiation unit on the reflection plate.

23. The antenna according to any one of claims 16 to 22, characterized in that: The mounting structure is a bent structure, the antenna comprises at least two mounting structures, and the two mounting structures are arranged at intervals; at least one of the antenna cover or the reflector of each antenna subarray is connected to each mounting structure.

24. The antenna according to any one of claims 16 to 23, characterized in that: The mounting structure includes a first rotating part and a second rotating part, the first rotating part is hinged to the second rotating part, and at least one of the antenna cover or the reflector of at least one of the at least two antenna subarrays is connected to the first rotating part; at least one of the antenna cover or the reflector of at least one of the at least two antenna subarrays is connected to the second rotating part.

25. The antenna according to any one of claims 16 to 24, characterized in that: The mounting structure is integrally formed with the end caps arranged on the same side of at least two antenna subarrays.

26. A base station, characterized in that: It comprises a supporting frame and the antenna according to any one of claims 1 to 25, wherein the antenna is connected to the supporting frame.

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