Radiation device, antenna and communication device

Abstract

The present application relates to a radiation device, an antenna, and a communication device. The radiation device includes a low-frequency radiation unit, a high-frequency radiation unit, and a reflector; the low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun, and radiation arms, the radiation arms are connected to the low-frequency feeding balun, the low-frequency feeding balun is connected to the low-frequency oscillator base, and a hollow first sleeve is provided on the low-frequency oscillator base; the high-frequency radiation unit includes a high-frequency oscillator body and a high-frequency feeding device, the high-frequency oscillator body includes a first high-frequency feeding balun, one end of the high-frequency feeding device is inserted into the first high-frequency feeding balun, and the other end passes through the first sleeve, and the first sleeve is coupled to the high-frequency oscillator body to form a second high-frequency feeding balun of the high-frequency radiation unit; the low-frequency radiation unit is connected to the reflector. Using this radiation device can reduce the complexity of the assembly process of the radiation device.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and particularly to a radiation device, an antenna, and a communication device. Background Art

[0002] With the continuous development of communication technologies, ultra-wideband, multi-system, and miniaturized antennas have become the mainstream requirements, and a radiation device with nested high and low frequencies on the antenna can meet the above requirements. Based on this, how to nest high and low frequency radiation devices in an antenna becomes particularly important.

[0003] In related technologies, usually, a separate high-frequency radiation device and a low-frequency radiation device are first set up, and the high-frequency radiation device is nested inside the low-frequency radiation device as a separate main body. After that, the high-frequency radiation device and the low-frequency radiation device can be fixed to a reflector by a lot of screws, and at the same time, other components are assembled to complete the assembly process of the radiation device.

[0004] However, the above assembly process is relatively complex. Summary of the Invention

[0005] Based on this, it is necessary to provide a radiation device, an antenna, and a communication device that can simplify the assembly complexity of the radiation device for the above technical problems.

[0006] In a first aspect, this application provides a radiation device, which includes a low-frequency radiation unit, a high-frequency radiation unit, and a reflector;

[0007] The above low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun, and radiation arms. The above radiation arms are connected to the low-frequency feeding balun, the low-frequency feeding balun is connected to the low-frequency oscillator base, and a hollow first sleeve is provided on the low-frequency oscillator base;

[0008] The above high-frequency radiation unit includes a high-frequency oscillator main body and a high-frequency feeding device. The above high-frequency oscillator main body includes a first high-frequency feeding balun. One end of the above high-frequency feeding device is inserted into the above first high-frequency feeding balun, and the other end passes through the above first sleeve. The above first sleeve is coupled to the high-frequency oscillator main body to form a second high-frequency feeding balun of the above high-frequency radiation unit;

[0009] The above low-frequency radiation unit is connected to the above reflector.

[0010] In one embodiment, a hollow second sleeve is further provided on the low-frequency oscillator base of the above low-frequency radiation unit, and the above radiation device further includes a low-frequency feeding coaxial cable;

[0011] The above low-frequency feeding coaxial cable is connected to the above low-frequency radiation unit through the above second sleeve.

[0012] In one embodiment, the above-mentioned radiation device further includes a first support member. The first support member includes a first through hole adapted to the first sleeve and a second through hole adapted to the second sleeve. The first sleeve and the second sleeve respectively pass through the first through hole and the second through hole, so that the low-frequency radiation unit is connected to the reflector through the first support member.

[0013] In one embodiment, the first support member further includes a fixing structure; the fixing structure is used to fix the high-frequency radiation unit.

[0014] In one embodiment, the first sleeve is disposed at a position close to the center of the low-frequency oscillator base, and the second sleeve is disposed at a position far from the center of the low-frequency oscillator base;

[0015] The first sleeve penetrates through the low-frequency oscillator base; the second sleeve is disposed on a surface of the low-frequency oscillator base facing away from the radiation direction.

[0016] In one embodiment, the radiation device further includes a high-frequency feed coaxial cable. Welding grooves are provided at the bottom of the first sleeve on the surface facing away from the radiation direction and at the bottom of the second sleeve on the surface facing away from the radiation direction;

[0017] The welding groove on the first sleeve is used to connect the outer conductor of the high-frequency feed coaxial cable;

[0018] The welding groove on the second sleeve is used to connect the outer conductor of the low-frequency feed coaxial cable.

[0019] In one embodiment, the other end of the high-frequency feed device is provided with a welding groove;

[0020] The distance between the welding groove on the high-frequency feed device and the reflector is greater than or equal to the distance between the welding groove on the first sleeve and the reflector.

[0021] In one embodiment, the core wire of the high-frequency feed coaxial cable is connected to the high-frequency feed device through the welding groove on the high-frequency feed device.

[0022] In one embodiment, a fixing hole is further provided on a surface of the low-frequency oscillator base facing away from the radiation direction; the first support member further includes a third through hole adapted to the fixing hole;

[0023] The low-frequency radiation unit is connected to the reflector through the fixing hole and the third through hole.

[0024] In one embodiment, the high-frequency radiation unit further includes a second support member;

[0025] The above high-frequency feeding device is connected to the above high-frequency oscillator body through the above second support member.

[0026] In one embodiment, the above high-frequency radiation unit further includes a director and a third support member;

[0027] The above director is connected to the above high-frequency oscillator body through the above third support member.

[0028] In one embodiment, the above high-frequency oscillator body further includes a radiation surface, the number of the above first high-frequency feeding baluns is two, and both of the two first high-frequency feeding baluns are arranged below the above radiation surface;

[0029] The above radiation surface is a ±45° dual-polarized half-wave radiation surface, one of the above first high-frequency feeding baluns is connected to the +45° half-wave radiation surface, and the other first high-frequency feeding balun is connected to the -45° half-wave radiation surface.

[0030] In one embodiment, the number of the above first sleeves is set to two, and the number of the above second sleeves is set to two.

[0031] In one embodiment, the above low-frequency radiation unit is an integrally die-cast and integrally electroplated low-frequency radiation unit.

[0032] In one embodiment, the above high-frequency oscillator body is an integrally die-cast high-frequency oscillator body that does not require electroplating.

[0033] In one embodiment, the above high-frequency feeding device is an integrally die-cast high-frequency feeding device that is integrally electroplated or electroplated at the welding groove position of the above high-frequency feeding device.

[0034] In a second aspect, the present application further provides an antenna, and the antenna includes the radiation device of the first aspect.

[0035] In a third aspect, the present application further provides a communication device, and the communication device includes the antenna of the second aspect.

[0036] The above-mentioned radiation device, antenna and communication device. The radiation device includes a low-frequency radiation unit, a high-frequency radiation unit and a reflector. The low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun and a radiation arm. The radiation arm is connected to the low-frequency feeding balun, and the low-frequency feeding balun is connected to the low-frequency oscillator base. A hollow first sleeve is provided on the low-frequency oscillator base. The high-frequency radiation unit includes a high-frequency oscillator main body and a high-frequency feeding device. One end of the high-frequency feeding device is inserted into the first high-frequency feeding balun included in the high-frequency oscillator main body, and the other end passes through the first sleeve. The first sleeve is coupled to the high-frequency oscillator main body to form the second high-frequency feeding balun of the high-frequency radiation unit. The low-frequency radiation unit is connected to the reflector. In this radiation device, since a set of high-frequency feeding baluns of the high-frequency radiation unit are integrated into the low-frequency radiation unit in the form of the first sleeve, the structural composition of the high-frequency radiation unit is simplified, and then the structure of the radiation device is simplified. Therefore, the complexity of the assembly process of the radiation device can be reduced. At the same time, the high-frequency radiation unit is connected through the hollow sleeve, so that the internal space of the low-frequency radiation unit can be effectively utilized, which is convenient for the mass production of the radiation device. In addition, here only the low-frequency radiation unit and the reflector need to be connected by devices such as screws, and the high-frequency radiation unit does not need to be directly connected to the reflector by devices such as screws, so that the overall structure of the radiation device can be further simplified, and the complexity of the assembly process of the radiation device can be further reduced. Description of the Drawings

[0037] Figure 1 Schematic diagram of the overall structure of the radiation device in one embodiment;

[0038] Figure 2 Schematic diagram of the front structure of the low-frequency radiation unit in another embodiment;

[0039] Figure 3 Schematic diagram of the structure of the first support member in another embodiment;

[0040] Figure 4 Schematic diagram of the reverse structure of the low-frequency radiation unit in another embodiment;

[0041] Figure 5 Schematic diagram of the structure of the high-frequency oscillator main body of the high-frequency radiation unit in another embodiment;

[0042] Figure 6 Exploded structure diagram of the high-frequency radiation unit in another embodiment;

[0043] Figure 7 Exploded structure diagram of the high-frequency feeding device and the second support member in another embodiment;

[0044] Description of the Reference Numerals:

[0045] Low-frequency radiation unit: 10; Low-frequency oscillator base: 101; Low-frequency feeding balun: 102; Radiation arm: 103; First sleeve: 1011; Second sleeve: 1012; Fixing hole: 1013;

[0046] High-frequency radiation unit: 11; High-frequency oscillator body: 111; High-frequency feeding device: 112; First high-frequency feeding balun: 1111; Radiation surface: 1112; Second support: 113; Director: 114; Third support: 115;

[0047] First support: 12; First through hole: 121; Second through hole: 122; Fixing structure: 123; Third through hole: 124;

[0048] Low-frequency feeding coaxial cable: 13;

[0049] High-frequency feeding coaxial cable: 14. Detailed implementation manners

[0050] 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 and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0052] Figure 1 It is a structural schematic diagram of the radiation device provided in an embodiment. Refer to Figure 1As shown, the radiation device includes a low-frequency radiation unit 10, a high-frequency radiation unit 11, and a reflector (not shown in the figure); the low-frequency radiation unit 10 includes a low-frequency oscillator base 101, a low-frequency feeding balun 102, and a radiation arm 103. The radiation arm 103 is connected to the low-frequency feeding balun 102, the low-frequency feeding balun 102 is connected to the low-frequency oscillator base 101, and a hollow first sleeve 1011 is provided on the low-frequency oscillator base 101; the high-frequency radiation unit 11 includes a high-frequency oscillator main body 111 and a high-frequency feeding device 112. The high-frequency oscillator main body 111 includes a first high-frequency feeding balun 1111. One end of the high-frequency feeding device 112 is inserted into the first high-frequency feeding balun 1111, and the other end passes through the first sleeve 1011. The first sleeve 1011 is coupled to the high-frequency oscillator main body 111 to form a second high-frequency feeding balun of the high-frequency radiation unit 11; the low-frequency radiation unit 10 is connected to the reflector.

[0053] Among them, the low-frequency radiation unit 10 includes a low-frequency oscillator base 101, a low-frequency feeding balun 102, and a radiation arm 103. The radiation arm 103 is connected to the low-frequency feeding balun 102, and the low-frequency feeding balun 102 is connected to the low-frequency oscillator base 101. Relative to the ground, the low-frequency feeding balun 102 and the radiation arm 103 are arranged above the low-frequency oscillator base 101. The direction in which the low-frequency oscillator base 101 extends toward the low-frequency feeding balun 102 and the radiation arm 103 is the radiation direction, and vice versa is the back radiation direction; in addition, the low-frequency oscillator base 101 is in a closed shape, which can facilitate the installation stability of the low-frequency oscillator base 101. The shape of the low-frequency radiation unit 10 can be set according to actual conditions. For example, it can be a shape similar to a horn, or a shape similar to a cuboid, etc. In addition, the low-frequency radiation unit 10 has a hollow structure, and the hollow position is used for nesting and placing the high-frequency radiation unit 11.

[0054] A hollow first sleeve 1011 is provided in the middle of the low-frequency oscillator base 101. The number of the first sleeves 1011 is generally two. The shape of the hollow sleeve can be set according to actual conditions. For example, it can be a hollow cylinder. The first sleeve 1011 can be arranged through the low-frequency oscillator base 101, or can be only arranged on one side of the low-frequency oscillator base 101 facing the radiation direction. Regarding the installation position of the first sleeve 1011 on the low-frequency oscillator base 101, generally, two first sleeves 1011 are adjacent to each other and are arranged in the middle of the low-frequency oscillator base 101.

[0055] In addition, for the processing method of the low-frequency radiation unit 10, optionally, the low-frequency radiation unit 10 can be integrally die-cast and the whole low-frequency radiation unit 10 is electroplated. Such an integrally die-cast and electroplated low-frequency radiation unit 10 can facilitate the welding between the low-frequency radiation unit 10 and other devices such as a low-frequency feed coaxial cable.

[0056] The high-frequency radiation unit 11 includes a high-frequency oscillator main body 111 and a high-frequency feeding device 112. The high-frequency oscillator main body 111 includes a first high-frequency feeding balun 1111 and may also include a base. Relative to the ground, the first high-frequency feeding balun 1111 is disposed on the base, and the base is disposed on the side of the high-frequency oscillator main body 111 close to the ground. In this embodiment, the number of the first high-frequency feeding baluns 1111 is preferably 2. The first high-frequency feeding balun 1111 may adopt a hollow circular tube structure. In addition, for the processing method of the high-frequency oscillator main body 111, since the high-frequency oscillator main body 111 does not need to be welded to other devices here, optionally, the high-frequency oscillator main body 111 can be integrally die-cast and the high-frequency oscillator main body 111 does not need to be electroplated. This can save the production cost of the high-frequency radiation unit 11, and further save the production cost of the radiation device. At the same time, reducing the electroplating area is also more conducive to the realization of energy conservation and emission reduction.

[0057] The high-frequency feeding device 112 can be a metal feeding device, which can be composed of a pure metal sheet or other gold-plated dielectric plates, etc.; its shape can be similar to an arch. In this embodiment, the number of the high-frequency feeding devices 112 is preferably 2. If the two high-frequency feeding devices 112 are in an arch shape, then they can be arranged back to back according to the arch parts. In addition, for each high-frequency feeding device 112, the end facing the radiation direction is called one end of the high-frequency feeding device, and the end facing away from the radiation direction is called the other end of the high-frequency feeding device. Here, one end of the two high-frequency feeding devices 112 can be cross-inserted into the first high-frequency feeding balun 1111 and coupled to the first high-frequency feeding balun 1111; the other ends of the two high-frequency feeding devices 112 are inserted into the first sleeve 1011 and pass through the first sleeve 1011 and finally connected to the high-frequency feed coaxial cable. In addition, the first sleeve 1011 here is a component on the low-frequency radiation unit 10, and it is coupled to the high-frequency oscillator main body 111 to form another high-frequency feeding balun of the high-frequency radiation unit 11, denoted as the second high-frequency feeding balun; the high-frequency feeding balun of the high-frequency radiation unit 11 realized by coupling connection here can simplify the structure of the high-frequency radiation unit 11 and is beneficial to subsequent assembly.

[0058] Furthermore, the high-frequency radiation unit 11 is disposed in the middle of the low-frequency radiation unit 10 through the first sleeve 1011 to achieve the effect of high-low frequency nesting. The low-frequency radiation unit 10 and the reflector are connected by screws, buckles, etc. At the same time, the high-frequency radiation unit 11 here does not need to be additionally connected to the reflector by screws, etc., thus simplifying the assembly process of the radiation device.

[0059] As can be seen from the above description, in this embodiment, a pair of feed baluns of the high-frequency oscillator body 111 are split from the high-frequency oscillator body 111 to form the first sleeve 1011 described above, and the first sleeve 1011 is then integrated into the low-frequency oscillator base 101. The first sleeve 1011 is coupled to the high-frequency oscillator body 111 to form a high-frequency oscillator in a true sense. The high-frequency feed device 112 is coupled to the high-frequency oscillator body 111 for coupled feeding, so that the high-frequency oscillator body 111 can operate normally.

[0060] The above-mentioned radiation device includes a low-frequency radiation unit 10, a high-frequency radiation unit 11, and a reflector. The low-frequency radiation unit 10 includes a low-frequency oscillator base, a low-frequency feed balun, and a radiation arm that are connected to each other. The radiation arm is connected to the low-frequency feed balun, and the low-frequency feed balun is connected to the low-frequency oscillator base. A hollow first sleeve 1011 is provided on the low-frequency oscillator base. The high-frequency radiation unit 11 includes a high-frequency oscillator body 111 and a high-frequency feed device 112. One end of the high-frequency feed device 112 is inserted into the first high-frequency feed balun 1111 included in the high-frequency oscillator body 111, and the other end passes through the first sleeve 1011. The first sleeve 1011 is coupled to the high-frequency oscillator body 111 to form the second high-frequency feed balun of the high-frequency radiation unit 11, and the low-frequency radiation unit 10 and the reflector are connected. In this radiation device, since a set of high-frequency feed baluns of the high-frequency radiation unit 11 are integrated into the low-frequency radiation unit 10 in the form of a first sleeve, the structural composition of the high-frequency radiation unit 11 is simplified, and then the structure of the radiation device is simplified, so the complexity of the radiation device assembly process can be reduced; at the same time, the high-frequency radiation unit 11 is connected through a hollow sleeve, which can effectively utilize the internal space of the low-frequency radiation unit 10 and facilitate the mass production of the radiation device; in addition, only the low-frequency radiation unit 10 and the reflector need to be connected by devices such as screws, and the high-frequency radiation unit 11 does not need to be directly connected to the reflector by devices such as screws, thus further simplifying the overall structure of the radiation device and further reducing the complexity of the radiation device assembly process.

[0061] See Figure 2As shown, it is a front structural schematic diagram of the low-frequency radiation unit 10 provided in another embodiment. On the basis of the above embodiment, a hollow second sleeve 1012 is further provided on the low-frequency oscillator base 101 of the low-frequency radiation unit 10, and the radiation device further includes a low-frequency feeding coaxial cable 13 ( Figure 2 not shown temporarily in the figure); the low-frequency feeding coaxial cable 13 is connected to the low-frequency radiation unit 10 through the second sleeve 1012.

[0062] Among them, the number of the second sleeves 1012 is generally two, and the shape of the second sleeve 1012 is the same as that of the first sleeve 1011, for example, it can be a hollow cylinder. The second sleeve 1012 can be arranged through the low-frequency oscillator base 101, or can be only arranged on the side of the low-frequency oscillator base 101 facing away from the radiation direction (that is, arranged on the back of the low-frequency oscillator base 101). Regarding the setting position of the second sleeve 1012 on the low-frequency oscillator base 101, it can be arranged in the middle of the low-frequency oscillator base 101, or can be arranged on the side of the low-frequency oscillator base 101, or a part of the second sleeve 1012 can be arranged in the middle of the low-frequency oscillator base 101 and another part of the second sleeve 1012 can be arranged on the side of the low-frequency oscillator base 101. It should be noted that the setting positions of the first sleeve 1011 and the second sleeve 1012 are different, that is, there will be no overlap. For example, if the first sleeve 1011 is arranged in the middle of the low-frequency oscillator base 101, then the second sleeve 1012 can be arranged on the side of the low-frequency oscillator base 101.

[0063] For the low-frequency feeding balun 102 and the radiation arm 103, continue to refer to Figure 2As shown in the figure, the low-frequency feeding balun 102 is connected to the low-frequency oscillator base 101, and the radiation arm 103 is connected to the low-frequency feeding balun 102. Taking the ±45° dual-polarization radiation device as an example, the low-frequency feeding balun 102 can include 4 pairs of low-frequency feeding baluns 102, and the radiation arm 103 can include 4 pairs of radiation arms 103. Each pair of low-frequency feeding baluns 102 includes a +45° low-frequency feeding balun 102 and a -45° low-frequency feeding balun 102, and each pair of radiation arms 103 is respectively connected to a corresponding pair of low-frequency feeding baluns 102. Here, the low-frequency feeding balun 102 can be composed of a PCB board, or can be composed of a dielectric board similar to a PCB board. Of course, it can also be in other forms, which is not specifically limited here. Each of the 4 pairs of low-frequency feeding baluns 102 is arranged together, and these 4 pairs of feeding baluns are respectively arranged at the four corners of the low-frequency oscillator base 101, and the radiation arm 103 can be arranged on the low-frequency feeding balun 102. Optionally, both the low-frequency feeding balun 102 and the radiation arm 103 are arranged in a strip shape, which can simplify the structure of the low-frequency radiation unit 10. At the same time, less material is required when die-casting the low-frequency radiation unit 10, which can save the die-casting cost and thus save the production cost of the radiation device.

[0064] In addition, as shown in Figure 1 the above-mentioned radiation device further includes a low-frequency feeding coaxial cable 13. Taking the ±45° dual-polarization radiation device as an example, here it can include 2 low-frequency coaxial cables, which are respectively used as the cables for 2 polarizations. Among them, the low-frequency coaxial cable includes a core wire and an outer conductor, and the outer conductor can be connected to the second sleeve 1012.

[0065] In this embodiment, a hollow second sleeve 1012 is further arranged on the low-frequency oscillator base 101 of the low-frequency radiation unit 10, and the low-frequency feeding coaxial cable 13 included in the radiation device is connected to the low-frequency radiation unit 10 through the second sleeve 1012, which can simplify the connection structure between the low-frequency radiation unit 10 and the low-frequency feeding coaxial cable 13, and further reduce the assembly difficulty of the radiation device.

[0066] In another embodiment, continue to refer to Figure 1 and Figure 2 As shown in the figure, on the basis of the above-mentioned embodiment, the above-mentioned first sleeve 1011 includes two first sleeves 1011, the above-mentioned second sleeve 1012 includes two second sleeves 1012, and the above-mentioned high-frequency feeding device 112 includes a pair of dual-polarization high-frequency feeding devices 112; the other ends of the pair of dual-polarization high-frequency feeding devices 112 respectively pass through the above-mentioned two first sleeves 1011; the two second sleeves 1012 are connected to the outer conductor of the above-mentioned low-frequency feeding coaxial cable 13.

[0067] Among them, for the high-frequency radiation unit 11, generally 4 feeding baluns are required. Here, one end of a pair of dual-polarized high-frequency feeding devices 112 is respectively inserted into the high-frequency feeding baluns, and the other end is respectively inserted into two first sleeves 1011, passes through the two first sleeves 1011, and is connected to the inner conductor of the high-frequency feeding coaxial cable. The first sleeve 1011 is connected to the outer conductor of the high-frequency coaxial cable.

[0068] For the first sleeve 1011, the number is set to two. For the two first sleeves 1011, they can be coupled to the high-frequency oscillator body 111 to form a pair of feeding baluns of the high-frequency radiation unit 11. In addition, for the second sleeve 1012, the number can also be set to two. The second sleeve 1012 includes two second sleeves 1012, which are respectively connected to the outer conductors of the two-polarized low-frequency feeding coaxial cables 13, realizing the connection between the low-frequency radiation unit 10 and the low-frequency feeding coaxial cable 13, and facilitating the feeding of the low-frequency radiation unit 10 through the low-frequency feeding coaxial cable 13.

[0069] Regarding the installation positions of the first sleeve 1011 and the second sleeve 1012 on the low-frequency oscillator base 101 of the low-frequency radiation unit 10, optionally, the two first sleeves 1011 can be arranged at positions close to the center of the low-frequency oscillator base 101, and the two second sleeves 1012 can be arranged at positions far from the center of the low-frequency oscillator base 101. That is to say, a row of 4 sleeves can be arranged at equal or unequal intervals at the middle position of the low-frequency oscillator base 101, where the two middle sleeves are the first sleeves 1011, and the two sleeves on both sides are the second sleeves 1012.

[0070] In addition, regarding the installation depths of the first sleeve 1011 and the second sleeve 1012 on the low-frequency oscillator base 101, optionally, the two first sleeves 1011 can penetrate the low-frequency oscillator base 101, and the two second sleeves 1012 are arranged on the side of the low-frequency oscillator base 101 facing away from the radiation direction. That is to say, the two first sleeves 1011 penetrate the front and back sides of the low-frequency oscillator base 101, and the two second sleeves 1012 generally also penetrate the front and back sides of the low-frequency oscillator base 101. Here, the front side of the low-frequency oscillator base 101 is defined as the side facing the radiation direction, and the back side is defined as the side facing away from the radiation direction. In addition, the heights of the two first sleeves 1011 on the side of the low-frequency oscillator base 101 facing away from the radiation direction can be the same as the heights of the two second sleeves 1012 on the side of the low-frequency oscillator base 101 facing away from the radiation direction, which is convenient for connecting the low-frequency radiation unit 10 to the reflector; the heights of the two first sleeves 1011 on the side of the low-frequency oscillator base 101 facing the radiation direction can be adjusted and optimized according to actual conditions to achieve the optimal radiation performance and circuit performance of the dual-polarized high-frequency radiation unit 11.

[0071] Further, optionally, refer to Figure 1 As shown, the above radiation device further includes a high-frequency feed coaxial cable 14. Welding grooves are provided at the bottoms of the two first sleeves 1011 on the side facing away from the radiation direction and at the bottoms of the two second sleeves 1012 on the side facing away from the radiation direction. The welding grooves on the two first sleeves 1011 are used to connect the outer conductor of the high-frequency feed coaxial cable 14. The welding grooves on the two second sleeves 1012 are used to connect the outer conductor of the low-frequency feed coaxial cable 13.

[0072] That is to say, it can be that the two first sleeves 1011 in the middle of the low-frequency oscillator base 101 are coupled and connected to the high-frequency feed device 112 of the high-frequency radiation unit 11. At the same time, the welding groove at the bottom of the first sleeve 1011 can be connected to the outer conductor of the high-frequency feed coaxial cable 14 that feeds the high-frequency radiation unit 11. The welding grooves at the bottoms of the two second sleeves 1012 on both sides (or called the outside of the low-frequency oscillator base 101) can be connected to the outer conductor of the low-frequency feed coaxial cable 13.

[0073] In addition, as an option, a welding groove is provided at the other end of the above high-frequency feed device 112. The core wire of the high-frequency feed coaxial cable 14 is connected to the high-frequency feed device 112 through the welding groove on the high-frequency feed device 112.

[0074] Here, it can be the other ends of the two dual-polarization high-frequency feed devices 112, that is, the ends that need to be inserted into the two first sleeves 1011 are both provided with welding grooves. This can facilitate the connection of the core wire of the high-frequency feed coaxial cable 14 to the high-frequency feed device 112 through this welding groove, so as to facilitate the high-frequency feed device 112 to feed power, and further feed power to the high-frequency oscillator body 111 of the high-frequency radiation unit 11 to achieve radiation performance.

[0075] It is mentioned above that welding grooves are also provided at the bottoms of the two first sleeves 1011, and welding grooves are also provided at the bottom of the high-frequency feed device 112. Then, for the heights of these two welding grooves relative to the ground, characterized by distance, the distance between the welding groove on the high-frequency feed device 112 and the reflector can be greater than or equal to the distance between the welding grooves on the two first sleeves 1011 and the reflector. That is to say, the welding groove on the high-frequency feed device 112 is provided inside the two first sleeves 1011, flush with or slightly lower than the welding grooves at the bottoms of the two first sleeves 1011, and does not protrude from the first sleeves 1011, while the welding grooves at the bottoms of the two first sleeves 1011 protrude outside. This can facilitate the connection of the outer conductor of the high-frequency feed coaxial cable 14 to the welding groove on the first sleeve 1011 and the connection of the core wire of the high-frequency feed coaxial cable 14 to the welding groove on the high-frequency feed device 112, and reduce the assembly difficulty of the high-frequency feed coaxial cable 14.

[0076] Furthermore, for the processing method of the high-frequency feeding device 112 mentioned here, optionally, the high-frequency feeding device 112 can be integrally die-cast and then electroplated as a whole, or electroplated at the welding groove position of the high-frequency feeding device 112. That is to say, in order to meet the welding requirements between the high-frequency feeding device 112 and the high-frequency feeding coaxial cable 14, the whole body of the high-frequency feeding device 112 can be electroplated; at the same time, in order to save electroplating costs and achieve energy conservation and emission reduction, only the part of the high-frequency feeding device 112 with welding grooves can be electroplated. In addition, the high-frequency feeding device 112 is integrally die-cast, which is convenient for processing the high-frequency feeding device 112 and improves the processing efficiency.

[0077] In this embodiment, the first sleeve 1011 includes two first sleeves 1011, the second sleeve 1012 includes two second sleeves 1012, and the high-frequency feeding device 112 can also include a pair of dual-polarization high-frequency feeding devices 112. The first sleeve 1011 is coupled to the main body of the high-frequency radiation unit 11 and is part of the high-frequency radiation unit 11. Therefore, the high-frequency feeding device 112 placed in the first sleeve 1011 is coupled to the high-frequency radiation unit 11. That is, the other ends of the high-frequency feeding devices 112 are respectively coupled to the high-frequency radiation unit 11 through the two first sleeves 1011. The two second sleeves 1012 are connected to the outer conductor of the low-frequency feeding coaxial cable 13, which is convenient for accurately realizing the assembly process between the dual-polarization high-frequency radiation unit 11 and the low-frequency radiation unit 10.

[0078] See Figure 3 As shown, it is a schematic structural diagram of the first support member 12 provided in another embodiment. On the basis of the above embodiment, in combination with Figure 1 As shown, the above radiation device further includes a first support member 12. The first support member 12 includes a first through hole 121 adapted to the first sleeve 1011 and a second through hole 122 adapted to the second sleeve 1012. The first sleeve 1011 and the second sleeve 1012 respectively pass through the first through hole 121 and the second through hole 122, so that the low-frequency radiation unit 10 is connected to the reflector through the first support member 12.

[0079] Among them, the first support member 12 can be a plastic support member. The size of the first support member 12 in the horizontal plane is generally larger than the size of the low-frequency radiation unit 10 in the horizontal plane, which is convenient for connecting the low-frequency radiation unit 10 to the reflector through the first support member 12.

[0080] In addition, the number of the above-mentioned first through holes 121 is the same as that of the first sleeves 1011, and the number of the second through holes 122 is the same as that of the second sleeves 1012. When actually assembling the radiation device, the high-frequency radiation unit 11 can first insert the high-frequency feeding device 112 into the first sleeve 1011 on the low-frequency radiation unit 10, and then the first sleeve 1011 passes through the first through hole 121 adapted on the first support member 12. The second sleeve 1012 on the low-frequency oscillator base 101 of the low-frequency radiation unit 10 passes through the second through hole 122 adapted on the first support member 12 and is connected to the reflector.

[0081] Furthermore, in order to facilitate clamping the high-frequency radiation unit 11, optionally, the above-mentioned first support member 12 further includes a fixing structure 123 for fixing the high-frequency radiation unit 11. The fixing structure 123 can be a claw-like groove, or can be a flat plate with an inclined angle, or can also be other shapes. The number of the fixing structures 123 on the first support member 12 can be set according to actual situations. For example, it can include 8 fixing structures 123, namely 4 claw-like grooves and 4 flat plates with inclined angles. Through the fixing structure 123, the high-frequency radiation unit 11 can be clamped, so that the high-frequency radiation unit 11 does not shake in the first sleeve 1011 and does not shake on the reflector, improving the stability of the high-frequency radiation unit 11.

[0082] It should be noted that the first support member 12 in this embodiment has three functions, namely: First, it can fix the high-frequency oscillator body 111 of the high-frequency radiation unit 11 to the reflector, and fix the low-frequency radiation unit 10 to the reflector, facilitating the tightening operation of the screws; Second, it clamps the high-frequency radiation unit 11, eliminating the need for additional tightening screws and simplifying the structure of the radiation device; Third, it clamps the cable feeding the high-frequency and low-frequency radiation unit 10, improving the stability.

[0083] In this embodiment, the radiation device further includes a first support member 12. The low-frequency radiation unit 10 can be connected to the reflector through the first support member 12, so that the connection between the low-frequency radiation unit 10 and the support plate can be realized through the support member, facilitating the assembly process of the radiation device. In addition, the first support member 12 includes a first through hole 121 adapted to the first sleeve 1011 and a through hole adapted to the second sleeve 1012, facilitating the connection between the low-frequency radiation unit 10 and the high-frequency radiation unit 11 and the first support member 12, reducing the assembly complexity. Furthermore, the fixing structure 123 included in the first support member 12 can fix the high-frequency radiation unit 11, so that the high-frequency radiation unit 11 can be clamped through the fixing structure, eliminating the need for additional tightening screws, thereby simplifying the structural composition of the radiation device and further reducing the assembly difficulty of the radiation device.

[0084] SeeFigure 4 As shown, it is a schematic diagram of the reverse structure of the low-frequency radiation unit 10 provided in an embodiment. On the basis of the above embodiment, a fixing hole 1013 is further provided on the surface of the low-frequency oscillator base 101 facing away from the radiation direction; the first support member 12 further includes a third through hole 124 adapted to the fixing hole 1013; the low-frequency radiation unit 10 is connected to the reflector through the fixing hole 1013 and the third through hole 124.

[0085] Among them, the fixing hole 1013 here can be provided on the back surface of the low-frequency oscillator base 101 and does not penetrate the low-frequency oscillator base 101. For the number of low-frequency oscillator bases 101, it can be 2, 3, 4, etc. In this embodiment, it is preferably 3, which can reduce the design and material costs of the low-frequency oscillator base 101 while ensuring the connection stability between the low-frequency oscillator base 101 and the reflector. For the convenience of design, the shapes and sizes of the plurality of fixing holes 1013 are equal. For the shape of the fixing hole 1013, it can be a threaded hole, a flat boss, or a hollow through hole, etc. For the arrangement positions of the plurality of fixing holes 1013 on the back surface of the low-frequency oscillator base 101, they can be all arranged on the side edges of the back surface of the low-frequency oscillator base 101 and then arranged at equal distances.

[0086] In addition, continue to refer to Figure 3 As shown, a third through hole 124 adapted to the fixing hole 1013 is further provided on the first support member 12. Generally, the number of the third through holes 124 is equal to the number of the fixing holes 1013. The fixing hole 1013 on the low-frequency oscillator base 101 of the low-frequency radiation unit 10 can pass through the third through hole 124 on the first support member 12 and then be connected to the reflector, which can improve the connection stability.

[0087] In this embodiment, a fixing hole 1013 is further provided on the surface of the low-frequency oscillator base 101 facing away from the radiation direction, the first support member 12 further includes a third through hole 124 adapted to the fixing hole 1013, and the low-frequency radiation unit 10 is connected to the reflector through the fixing hole 1013 and the third through hole 124, which can improve the connection stability between the low-frequency radiation unit 10 and the reflector.

[0088] Refer to Figure 5 As shown, it is a schematic diagram of the structure of the high-frequency oscillator body 111 of the high-frequency radiation unit 11 provided in another embodiment. On the basis of the above embodiment, the high-frequency oscillator body 111 further includes a radiation surface 1112, and the number of the first high-frequency feed baluns 1111 is set to two, and both of the two first high-frequency feed baluns 1111 are arranged below the radiation surface 1112.

[0089] That is to say, relative to the ground, the two first high-frequency feeding baluns 1111 are arranged below the radiation surface 1112 and are connected to the radiation surface 1112. The radiation device in the embodiment of the present application is a ±45° dual-polarization radiation device, and the low-frequency radiation unit 10 and the high-frequency radiation unit 11 are also both ±45° dual-polarization radiation units. For the ±45° dual-polarization high-frequency radiation unit 11, the above-mentioned radiation surface 1112 is a ±45° dual-polarization half-wave radiation surface 1112. One first high-frequency feeding balun 1111 is connected to the +45° half-wave radiation surface 1112, and the other first high-frequency feeding balun 1111 is connected to the -45° half-wave radiation surface 1112.

[0090] In addition, the high-frequency oscillator body 111 may further include a base, which is arranged at the bottoms of the two second high-frequency feeding baluns and is used to support the two second high-frequency feeding baluns and the radiation surface 1112.

[0091] In this embodiment, the high-frequency oscillator body 111 includes a ±45° dual-polarization radiation surface 1112 and two first high-frequency feeding baluns 1111 respectively connected to the radiation surfaces 1112 of the two polarizations. This can facilitate the integrated design of the dual-polarization high-frequency oscillator body 111 and at the same time facilitate the die-casting molding of the high-frequency oscillator body 111.

[0092] See Figure 6 As shown, it is an exploded structural schematic diagram of the high-frequency radiation unit 11 provided in another embodiment, and see Figure 7 As shown, it is an exploded structural schematic diagram of the high-frequency feeding device 112 and the second support member 113 provided in another embodiment. On the basis of the above embodiment, the high-frequency radiation unit 11 further includes a second support member 113, and the high-frequency feeding device 112 is connected to the high-frequency oscillator body 111 through the second support member 113.

[0093] Among them, the second support member 113 may be a plastic support member; for the shape of the second support member 113, it can be set according to the actual situation. For example, it can be a shape that fits the high-frequency feeding device 112, as long as it can tightly connect the high-frequency feeding device 112 and the high-frequency oscillator body 111.

[0094] In addition, optionally, the high-frequency radiation unit 11 further includes a director 114 and a third support member 115; the director 114 is connected to the high-frequency oscillator body 111 through the third support member 115.

[0095] Among them, the director 114 here may be a metal director 114, which may be a pure metal sheet or a gold-plated director 114. For the shape of the director 114, it can be set according to the actual situation. For example, it can be circular, square, etc. The director 114 here is mainly used to improve the radiation performance and circuit performance of the radiation device.

[0096] In addition, for the third support member 115, it can also be a plastic support member; the shape of the third support member 115 can be set according to the actual situation. For example, it can be a shape that fits the director 114, as long as it can tightly connect the director 114 and the high-frequency oscillator body 111.

[0097] It should be noted that the nested order of the positions of the second support member 113 and the third support member 115 with respect to the high-frequency oscillator body 111 can be, in sequence, the center of the high-frequency oscillator body 111, the third support member 115, and the second support member 113, that is, the second support member 113 is arranged innermost in the high-frequency oscillator body 111.

[0098] In addition, through holes can be provided on the radiation surface 1112 of the high-frequency oscillator body 111. The third support member 115 can be a support member composed of a transverse support member and a longitudinal support member. The longitudinal support member can be composed of multiple strip-shaped support members, and these multiple strip-shaped support members can pass through the through holes on the radiation surface 1112 and then be connected to the first support member 12, further improving the assembly stability of the high-frequency radiation unit 11.

[0099] In this embodiment, the high-frequency feeding device 112 can be connected to the high-frequency oscillator body 111 through the second support member 113 included in the high-frequency radiation unit 11, which can improve the connection stability of the high-frequency feeding device 112 and further improve the assembly stability of the high-frequency radiation unit 11. In addition, the director 114 included in the high-frequency radiation unit 11 can be connected to the high-frequency oscillator body 111 through the third support member 115, which can improve the assembly stability of the high-frequency radiation unit 11 while ensuring the improvement of the radiation performance and circuit performance of the radiation device.

[0100] Based on the same inventive concept, an embodiment of the present application further provides an antenna, and the above antenna includes the above radiation device.

[0101] In this embodiment, the antenna is a dual-polarized radiation antenna. Since it includes a radiation device, the radiation device includes a low-frequency radiation unit, a high-frequency radiation unit, and a reflector. The low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun, and radiation arms. The radiation arms are connected to the low-frequency feeding balun, and the low-frequency feeding balun is connected to the low-frequency oscillator base. A hollow first sleeve is provided on the low-frequency oscillator base. The high-frequency radiation unit includes a high-frequency oscillator body and a high-frequency feeding device. One end of the high-frequency feeding device is inserted into the first high-frequency feeding balun included in the high-frequency oscillator body, and the other end passes through the first sleeve. The first sleeve is coupled to the high-frequency oscillator body to form the second high-frequency feeding balun of the high-frequency radiation unit. The low-frequency radiation unit is connected to the reflector. In this radiation device, since a set of high-frequency feeding baluns of the high-frequency radiation unit is integrated into the low-frequency radiation unit in the form of the first sleeve, the structural composition of the high-frequency radiation unit is simplified, and then the structure of the radiation device is simplified. Therefore, the complexity of the assembly process of the radiation device can be reduced. At the same time, by connecting the high-frequency radiation unit through the hollow sleeve, the internal space of the low-frequency radiation unit can be effectively utilized, which is convenient for the mass production of the radiation device. In addition, here only the low-frequency radiation unit and the reflector need to be connected by devices such as screws, and the high-frequency radiation unit does not need to be directly connected to the reflector by devices such as screws, so that the overall structure of the radiation device can be further simplified, the complexity of the assembly process of the radiation device can be further reduced, and then the complexity of installing each radiation device on the antenna can be reduced.

[0102] Based on the same inventive concept, an embodiment of the present application further provides a communication device, and the above communication device includes the above antenna.

[0103] Among them, the communication device can be a terminal, a base station, etc. The number and type of antennas included thereon can be determined according to actual situations, and no specific limitations are made here. The base station here can be a base station of any mode, such as a 2G base station, a 3G base station, a 4G base station, a 5G base station, and so on.

[0104] In this embodiment, the communication device includes the above antenna, which includes a radiation device. The radiation device includes a low-frequency radiation unit, a high-frequency radiation unit, and a reflector. The low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun, and radiation arms. The radiation arms are connected to the low-frequency feeding balun, and the low-frequency feeding balun is connected to the low-frequency oscillator base. A hollow first sleeve is provided on the low-frequency oscillator base. The high-frequency radiation unit includes a high-frequency oscillator body and a high-frequency feeding device. One end of the high-frequency feeding device is inserted into the first high-frequency feeding balun included in the high-frequency oscillator body, and the other end passes through the first sleeve. The first sleeve is coupled to the high-frequency oscillator body to form the second high-frequency feeding balun of the high-frequency radiation unit. The low-frequency radiation unit is connected to the reflector. In this radiation device, since a set of high-frequency feeding baluns of the high-frequency radiation unit is integrated into the low-frequency radiation unit in the form of the first sleeve, the structural composition of the high-frequency radiation unit is simplified, and then the structure of the radiation device is simplified. Therefore, the complexity of the assembly process of the radiation device can be reduced. At the same time, by connecting the high-frequency radiation unit through the hollow sleeve, the internal space of the low-frequency radiation unit can be effectively utilized, which is convenient for the mass production of the radiation device. In addition, here only the low-frequency radiation unit and the reflector need to be connected by devices such as screws, and the high-frequency radiation unit does not need to be directly connected to the reflector by devices such as screws, so that the overall structure of the radiation device can be further simplified, the complexity of the assembly process of the radiation device can be further reduced, and then the complexity of installing each radiation device on the antenna can be reduced, and the assembly process of the entire communication device can be reduced and the complexity of the overall machine assembly can be reduced.

[0105] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0106] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A radiation device, characterized in that, the radiation device includes a low-frequency radiation unit, a high-frequency radiation unit and a reflector; the low-frequency radiation unit includes a low-frequency oscillator base, a low-frequency feeding balun and a radiation arm, the radiation arm is connected to the low-frequency feeding balun, the low-frequency feeding balun is connected to the low-frequency oscillator base, and two hollow first sleeves are arranged on the low-frequency oscillator base; the high-frequency radiation unit includes a high-frequency oscillator main body and two high-frequency feeding devices, the high-frequency oscillator main body includes two first high-frequency feeding baluns, one end of the high-frequency feeding device is inserted into the corresponding first high-frequency feeding balun, and the other end passes through the corresponding first sleeve, and the first sleeve is coupled to the high-frequency oscillator main body to form a second high-frequency feeding balun of the high-frequency radiation unit; the low-frequency radiation unit is connected to the reflector.

2. The radiation device according to claim 1, characterized in that, a hollow second sleeve is further arranged on the low-frequency oscillator base, and the radiation device further includes a low-frequency feeding coaxial cable; the low-frequency feeding coaxial cable is connected to the low-frequency radiation unit through the second sleeve, and the second sleeve is connected to the outer conductor of the low-frequency feeding coaxial cable.

3. The radiation device according to claim 2, characterized in that, the radiation device further includes a first support member, the first support member includes a first through hole adapted to the first sleeve and a second through hole adapted to the second sleeve, the first sleeve and the second sleeve respectively pass through the first through hole and the second through hole, so that the low-frequency radiation unit is connected to the reflector through the first support member.

4. The radiation device according to claim 3, characterized in that, the first support member further includes a fixing structure; the fixing structure is used to fix the high-frequency radiation unit.

5. The radiation device according to claim 2, characterized in that, the first sleeve is arranged at a position close to the center of the low-frequency oscillator base, and the second sleeve is arranged at a position far from the center of the low-frequency oscillator base; the first sleeve penetrates through the low-frequency oscillator base; the second sleeve is arranged on the side of the low-frequency oscillator base facing away from the radiation direction.

6. The radiation device according to claim 2, characterized in that, the radiation device further includes a high-frequency feeding coaxial cable, and welding grooves are arranged at the bottoms of the first sleeve and the second sleeve on the side facing away from the radiation direction; the welding groove on the first sleeve is used to connect the outer conductor of the high-frequency feeding coaxial cable; the welding groove on the second sleeve is used to connect the outer conductor of the low-frequency feeding coaxial cable.

7. The radiation device according to claim 6, characterized in that, a welding groove is arranged at the other end of the high-frequency feeding device; the distance between the welding groove on the high-frequency feeding device and the reflector is greater than or equal to the distance between the welding groove on the first sleeve and the reflector.

8. The radiation device according to claim 6, characterized in that, the core wire of the high-frequency feeding coaxial cable is connected to the high-frequency feeding device through the welding groove on the high-frequency feeding device.

9. The radiation device according to claim 3, wherein, a fixing hole is further provided on a surface of the low-frequency oscillator base facing away from the radiation direction; the first support member further includes a third through hole adapted to the fixing hole; the low-frequency radiation unit is connected to the reflector through the fixing hole and the third through hole.

10. The radiation device according to claim 1, wherein, the high-frequency radiation unit further includes a second support member; the high-frequency feeding device is connected to the high-frequency oscillator body through the second support member.

11. The radiation device according to claim 1, wherein, the high-frequency radiation unit further includes a director and a third support member; the director is connected to the high-frequency oscillator body through the third support member.

12. The radiation device according to claim 1, wherein, the high-frequency oscillator body further includes a radiation surface, and the two first high-frequency feeding baluns are both disposed below the radiation surface; the radiation surface is a ±45° dual-polarized half-wave radiation surface, one of the first high-frequency feeding baluns is connected to the +45° half-wave radiation surface, and the other first high-frequency feeding balun is connected to the -45° half-wave radiation surface.

13. The radiation device according to claim 2, wherein, the number of the second sleeves is set to two.

14. An antenna, wherein, the antenna includes the radiation device according to any one of claims 1 to 13.

15. A communication device, wherein, the communication device includes the antenna according to claim 14.

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