Antenna device and communication equipment

Abstract

The invention discloses an antenna device and communication equipment, and relates to the technical field of wireless and communication. An antenna device comprises a radiation assembly and a feed network. The radiation assembly is provided with a first coupling structure; the feed network comprises a second coupling structure; one of the first coupling structure and the second coupling structure is provided with a cavity, the other one of the first coupling structure and the second coupling structure is provided with an insertion part, at least part of the insertion part is arranged in the cavity, and a first gap is formed between the insertion part and the inner wall of the cavity. The communication equipment comprises the antenna device. The antenna unit can solve the problem that a current antenna unit cannot meet the stability requirement and the broadband characteristic requirement.

Description

Technical Field

[0001] The present application belongs to the field of wireless and communication technology, and specifically relates to an antenna device and communication equipment. Background Art

[0002] With the rapid development of wireless communication technology, the system has put forward higher requirements for base station antennas, such as high integration, high radiation efficiency, high index requirements, and green environmental protection.

[0003] The feed element and the feed network of the antenna unit are connected by avoiding welding. The use of no welding can greatly reduce the energy consumption and the use of tin wire during welding, and improve production efficiency. At the same time, by removing the cable or PCB adapter board, the dielectric loss is reduced and the radiation efficiency is improved, which will become the development trend of antenna design in the future. However, in this technology, the feed element and the feed network are usually unable to meet the requirements of stability and broadband characteristics without welding, which affects the reliability of the antenna and makes it impossible to carry out broadband design. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an antenna device and a communication device, which can solve the problems that the current antenna unit cannot meet the stability requirements and broadband characteristics requirements.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of the present application provides an antenna device, including: a radiating component and a feeding network;

[0007] The radiation component has a first coupling structure;

[0008] The feed network includes a second coupling structure;

[0009] One of the first coupling structure and the second coupling structure is provided with a cavity, and the other is provided with an inserting portion, at least a portion of the inserting portion is provided in the cavity, and a first gap is provided between the inserting portion and an inner wall of the cavity.

[0010] An embodiment of the present application also provides a communication device, comprising the above-mentioned antenna device.

[0011] In an embodiment of the present application, one of the first coupling structure of the radiating component and the second coupling structure of the feeding network is provided with a cavity, and the other is provided with a plug-in portion. During assembly, at least part of the plug-in portion is arranged in the cavity, and a first gap is provided between the plug-in portion and the inner wall of the cavity. Based on this, a wireless coupling connection between the first coupling structure and the second coupling structure can be achieved to facilitate signal transmission and realize wireless coupling feeding. This coupling connection method can reduce the solder joints between the radiating component and the feeding network, reduce the intermodulation risks between links, thereby improving the intermodulation index and stability of the antenna device, and can also reduce the assembly energy consumption of the entire antenna device; in addition, compared with the current non-welding method, the antenna device in the embodiment of the present application can also meet the requirements of the communication system for the antenna device for non-welding, wide bandwidth, high intermodulation and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The schematic diagram of the contactless coupling feeding disclosed in the embodiment of the present application;

[0013] Figure 2 A schematic diagram of the three-dimensional structure of the antenna device disclosed in the embodiment of the present application;

[0014] Figure 3 A top view of the antenna device disclosed in an embodiment of the present application;

[0015] Figure 4 A disassembly diagram of the antenna device disclosed in an embodiment of the present application with the reflective housing removed;

[0016] Figure 5 A schematic diagram of the structure of an antenna device without a radiation unit disclosed in an embodiment of the present application;

[0017] Figure 6 A schematic structural diagram of an antenna device including multiple radiation components disclosed in an embodiment of the present application;

[0018] Figure 7 A schematic diagram of the three-dimensional structure of another form of an antenna device disclosed in an embodiment of the present application;

[0019] Figure 8 A side view of another form of an antenna device disclosed in an embodiment of the present application;

[0020] Fig. 9 A disassembly diagram of another form of an antenna device disclosed in an embodiment of the present application;

[0021] Fig.10 A schematic diagram of the structure of a radiation component in another form of an antenna device disclosed in an embodiment of the present application;

[0022] Fig.11This is a schematic diagram of another contactless coupling feeding disclosed in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 100-radiation component; 110-feed core; 111-first coupling structure; 1111-coupling tube; 120-support balun; 121-first mounting hole; 122-third clamping structure; 123-boss; 130-radiation unit;

[0025] 200-feeding network; 210-second coupling structure; 211-feeding needle;

[0026] 310 - first isolation medium; 320 - second isolation medium;

[0027] 400-reflection shell; 410-avoidance hole; 420-second mounting hole; 430-fourth clamping structure; 440-groove;

[0028] 500-fasteners;

[0029] 600-mounting member; 610-first clamping structure; 620-second clamping structure;

[0030] 700 - Fixed bracket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0033] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0034] refer to Figures 1 to 11An embodiment of the present application discloses an antenna device, which is applied to a communication device. The disclosed antenna device includes a radiation component 100 and a feeding network 200.

[0035] Among them, Figure 1 and Fig.11 As shown, the radiation component 100 has a first coupling structure 111, and correspondingly, the feeding network 200 includes a second coupling structure 210. Through the coupling between the first coupling structure 111 and the second coupling structure 210, the signal can be transmitted from the second coupling structure 210 to the first coupling structure 111, thereby realizing contactless coupling feeding.

[0036] One of the first coupling structure 111 and the second coupling structure 210 is provided with a cavity, and the other is provided with a plug-in portion, at least part of the plug-in portion is provided in the box, and a first gap is provided between the plug-in portion and the inner wall of the cavity. The first gap may range from 0.1 mm to 0.5 mm, for example, including 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc., and of course other values ​​may also be used, which are not specifically limited here.

[0037] For example, the first coupling structure 111 may be provided with a cavity, and the second coupling structure 210 may be provided with a plug-in portion, such as Figure 1 As shown; Of course, it is also possible that the first coupling structure 111 is provided with a plug-in portion, and the second coupling structure 210 is provided with a cavity, such as Fig.11 shown.

[0038] In the embodiment of the present application, the cascade feeding between the feeding network 200 and the radiating component 100 is achieved by coupling feeding of the first coupling structure 111 and the second coupling structure 210. Specifically, contactless coupling feeding is achieved by inserting at least part of the plug-in portion into the cavity and forming a first gap between the two. Compared with the traditional welding method, the contactless coupling feeding method in the present application can avoid environmental pollution caused by welding, and does not require tinning, thereby ensuring radiation efficiency, reducing solder joints, and reducing the risk of intermodulation between links, thereby making the antenna device more consistent, and can also reduce losses, simplify the feeding structure of the antenna device, and to a certain extent can improve the assembly efficiency of the antenna device and reduce production costs.

[0039] In addition, compared with some current non-welding methods, the embodiment of the present application proposes a new antenna device form, which realizes signal transmission through contactless coupling feeding, thereby meeting the communication system's requirements for antenna devices with respect to non-welding, wide bandwidth, high intermodulation and high stability.

[0040] It should be noted here that when the antenna device is working, coupled electromagnetic energy can be generated at a close distance between the plug-in part and the cavity, thereby generating current (such as generating current on the feed core 110, etc.), and radiating the energy outward through the radiation component 100 to achieve the effects of wide bandwidth, high intermodulation and high stability.

[0041] Exemplarily, the feed network 200 may be in the form of a metal strip line or an air strip line. In addition, the working principle of the feed network 200 may be a strip line, and the manufacturing process may be sheet metal, so that the feed network 200 may also be called a sheet metal strip line. Of course, the feed network 200 may also be in the form of a PCB.

[0042] refer to Figure 1 and Figure 3 In some embodiments, the first coupling structure 111 may include a coupling tube 1111, and the lumen of the coupling tube 1111 forms a cavity. Exemplarily, one end of the coupling tube 1111 is closed and the other end is open, wherein the closed end may be connected to the main body of the feed core 110, and the open end may be used to insert the plug-in portion.

[0043] In order to adapt to the first coupling structure 111, the second coupling structure 210 may include a feed pin 211, the feed pin 211 is connected to the output end of the feed network 200, and the end of the feed pin 211 away from the output end of the feed network 200 is inserted into the coupling tube 1111, and there is a first gap between the outer wall of the feed pin 211 and the tube wall of the coupling tube 1111. Based on this, when the antenna device is working, the feed pins 211 at each port of the feed network 200 can generate coupled electromagnetic energy to the corresponding coupling tube 1111 at a close distance, thereby generating current (e.g., generating current on the feed core 110), and radiating the energy outward through the radiation component 100.

[0044] Based on the above configuration, the cascade feeding between the feeding network 200 and the radiating component 100 is achieved by inserting the feeding needle 211 at the output end of the feeding network 200 into the coupling tube 1111 at one end of the feeding core 110 of the radiating component 100, thereby forming a contactless coupling feeding method. Compared with the traditional method, the contactless coupling feeding method can reduce solder joints and reduce the risk of intermodulation between links, thereby improving the consistency of the antenna device.

[0045] Exemplarily, the coupling tube 1111 may be a circular tube, a polygonal tube, etc., and correspondingly, the feed needle 211 may be a cylindrical needle, a polygonal needle, etc., to adapt to the shape of the coupling tube 1111 and ensure the uniformity of the first gap. In addition, the feed needle 211 may be integrally formed with the output end of the feed network 200, specifically, by casting, forging, stamping or die-casting.

[0046] To achieve effective coupling and feeding, the inner diameter of the coupling tube 1111 is 0.1 mm to 0.5 mm larger than the outer diameter of the feed needle 211, that is, the outer surface of the feed needle 211 is 0.1 mm to 0.5 mm away from the inner surface of the coupling tube 1111 to form a first gap. In addition, the inner depth of the coupling tube 1111 is 0.1 to 0.5 mm larger than the length of the feed needle 211.

[0047] The length of the feed pin 211 may be 0.1 to 0.2 times of the wavelength corresponding to the working center frequency of the antenna device.

[0048] In other embodiments, both the first coupling structure 111 and the second coupling structure 210 may be in the form of coupling sheets, and contactless coupling feeding may be achieved through the coupling sheets.

[0049] Continue to refer Figure 3 In some embodiments, the first gap is filled with a first isolation medium 310, which separates the plug-in part from the inner wall of the cavity. By filling the first isolation medium 310, the plug-in part can be firmly inserted into the cavity, and the plug-in part is not easy to move randomly in the cavity, thereby ensuring the position accuracy between the plug-in part and the cavity, and to a certain extent, the coupling accuracy can be improved. In addition, the first isolation medium 310 can separate the plug-in part from the inner wall of the cavity to prevent the plug-in part from contacting or short-circuiting with the cavity.

[0050] During the assembly process of the antenna device, the plug-in portion can be directly inserted into the cavity through the first isolation medium 310 to perform contactless coupling feeding. In this way, on the one hand, there is no need to connect the feeding network 200 and the radiation component 100 to each other in the form of welding, thereby avoiding environmental pollution caused by electroplating welding and reducing costs. In addition, there is no need for tinning, ensuring radiation efficiency, reducing solder joints, ensuring product performance, and ensuring reliable intermodulation indicators. In addition, plug-in matching is used to achieve coupling connection of electrical signals and improve assembly efficiency.

[0051] For example, the first isolation medium 310 may be an annular medium surrounding the periphery of the plug-in portion, thereby completely separating the plug-in portion from the inner wall of the cavity and ensuring that the plug-in portion does not move arbitrarily in the cavity. In addition, the first isolation medium 310 may include non-metallic materials such as resin and plastic.

[0052] refer to Figures 1 to 3In some embodiments, the antenna device may further include a reflective shell 400, wherein the feed network 200 is disposed inside the reflective shell 400, and the radiation component 100 is disposed outside the reflective shell 400. The radiation component 100 may be fixed to the reflective shell 400 to ensure the stability of the radiation component 100, and the reflective shell 400 may also reflect the electromagnetic wave signal to play a reflection role. In addition, the reflective shell 400 may also protect the feed network 200 therein to prevent the feed network 200 from being affected by the outside world. Exemplarily, the material of the reflective shell 400 may be a metal material.

[0053] Considering that the radiation component 100 is located outside the reflective housing 400, and the feeding network 200 is located inside the reflective housing 400, and the radiation component 100 and the feeding network 200 can be coupled and fed without interference, the side wall of the reflective housing 400 can be provided with an avoidance hole 410, and the first coupling structure 111 or the second coupling structure 210 passes through the avoidance hole 410. Based on this, by opening the avoidance hole 410, the first coupling structure 111 and the second coupling structure 210 can transmit signals without being affected by the reflective cavity.

[0054] Further, the radiation component 100 is connected to one of the side walls of the reflective shell 400, the surface of the side wall located outside the reflective shell 400 is a reflective surface for reflecting electromagnetic wave signals, and the avoidance hole 410 is opened on the side wall. Exemplarily, in actual working conditions, the outer surface of the top wall of the reflective shell 400 can be a reflective surface, which can reflect the electromagnetic wave signal emitted by the radiation component 100 to facilitate the propagation of the electromagnetic wave signal.

[0055] Exemplarily, the reflective shell 400 may be provided with openings at both ends in the Y direction, and during assembly, the feeding network 200 may be assembled into the reflective shell 400 through any opening.

[0056] refer to Figures 1 to 5 In some embodiments, the radiation component 100 may include a feed core 110 having a first coupling structure 111, a support balun 120, and a radiation unit 130 connected to the support balun 120, wherein the feed core 110 is disposed in the support balun 120 and is electrically connected to the radiation unit 130, and the support balun 120 is connected to the reflective shell 400.

[0057] The supporting balun 120 may be provided with a channel, and the feed core 110 is inserted in the channel. The supporting balun 120 can not only fix the feed core 110, but also protect the feed core 110 to prevent the feed core 110 from being damaged by external influences. In addition, the radiation unit 130 is connected to the supporting balun 120, and the supporting balun can fix the radiation unit 130 to ensure the stability of the radiation unit 130.

[0058] In some embodiments, the radiation component 100 may include a plurality of radiation units 130 , and the plurality of radiation units 130 may be connected to the support balun 120 , so that the plurality of radiation units 130 may be fixedly installed through the common support balun 120 .

[0059] Exemplarily, the feed core 110 and the radiation unit 130 may both be in the form of metal die-casting.

[0060] In order to achieve the connection between the radiation component 100 and the reflective shell 400, the support balun 120 can be provided with a first mounting hole 121. Correspondingly, the side wall of the reflective shell 400 can be provided with a second mounting hole 420. When the support balun 120 is installed to the reflective shell 400, the first mounting hole 121 is aligned with the second mounting hole 420 to facilitate the insertion of the fastener 500 in the first mounting hole 121 and the second mounting hole 420, so that the support balun 120 and the reflective shell 400 can be firmly fixed.

[0061] Exemplarily, the first mounting hole 121 may be a threaded hole, and the second mounting hole 420 may be a smooth hole. Accordingly, the fastener 500 may be a screw, a screw rod, a bolt, etc., and the support balun 120 may be firmly fixed to the side wall of the reflective housing 400 by the fastener 500 to ensure the stability of the support balun 120 on the reflective housing 400, and to ensure the stability of the radiation unit 130 connected to the support balun 120. Of course, it is also possible that the second mounting hole 420 is a threaded hole, the first mounting hole 121 is a smooth hole, and the fastener 500 may be a screw, a screw rod, a bolt, etc., and the fastener 500 passes through the support balun 120 and is threadedly connected to the second mounting hole 420, so as to achieve fixed installation of the support balun 120.

[0062] In addition, by fixing with the fastener 500 , the support balun 120 can be easily removed from the reflective housing 400 for easy maintenance.

[0063] refer to Figures 7 to 9In other embodiments, the antenna device may further include a mounting member 600, which is connected between the supporting balun 120 and the reflecting shell 400. The mounting member 600 can ensure the installation firmness and stability of the supporting balun 120 and the tightness of the fit between the supporting balun 120 and the reflecting shell 400, and facilitate the disassembly of the supporting balun 120.

[0064] Furthermore, the mounting member 600 may include a first snap-fit ​​structure 610 and a second snap-fit ​​structure 620. Accordingly, the supporting balun 120 may be provided with a third snap-fit ​​structure 122, which is snap-fitted with the first snap-fit ​​structure 610. Based on this, a firm installation between the supporting balun 120 and the radiating component 100 can be achieved, and the snap-fitting can also facilitate the disassembly between the supporting balun 120 and the radiating component 100, thereby facilitating maintenance of the antenna device.

[0065] Exemplarily, one of the first clip-on structure 610 and the third clip-on structure 122 may be a clip-on protrusion, a clip-on head, or the like, and the other may be a clip-on slot, a clip-on hole, or the like, so as to ensure the firmness between the support balun 120 and the radiation component 100 when clipped together, and facilitate the separation of the first clip-on structure 610 and the third clip-on structure 122, so as to facilitate the disassembly and assembly of the support balun 120.

[0066] In addition, the reflective shell 400 can be provided with a fourth snap-fit ​​structure 430, which is snap-fitted with the second snap-fit ​​structure 620. Based on this, a firm installation between the support balun 120 and the reflective shell 400 can be achieved, and the snap-fitting can also facilitate the disassembly between the support balun 120 and the reflective shell 400, thereby facilitating maintenance of the antenna device.

[0067] Exemplarily, one of the second clip-on structure 620 and the fourth clip-on structure 430 may be a clip-on convex structure, a clip-on head structure, or the like, and the other may be a clip-on groove, a clip-on hole structure, or the like, so as to ensure the firmness between the support balun 120 and the reflective shell 400 when clipped together, and facilitate the separation of the second clip-on structure 620 and the fourth clip-on structure 430, so as to facilitate the disassembly and assembly of the support balun 120.

[0068] In order to achieve coupling and grounding of the radiation unit 130 , the radiation component 100 and the reflective cavity may be assembled in a plug-in assembly manner.

[0069] In some embodiments, the support balun 120 may be provided with a third coupling structure, and the side wall of the reflective shell 400 may be provided with a fourth coupling structure. Through the cooperation between the third coupling structure and the fourth coupling structure, the coupling cooperation between the support balun 120 and the reflective shell 400 can be achieved, thereby achieving coupling grounding between the support balun 120 and the reflective shell 400.

[0070] Among them, one of the third coupling structure and the fourth coupling structure can be a boss 123, and the other can be a groove 440. The boss 123 is arranged in the groove 440, and there is a second gap between the outer wall of the boss 123 and the inner wall of the groove 440. Among them, the second gap can range from 0.1mm to 0.5mm, for example, including 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc., of course, it can also be other values, which are not specifically limited here.

[0071] Exemplarily, the support balun 120 may be provided with a ground coupling boss, and the reflective housing 400 may be provided with a ground coupling groove, and the coupling grounding between the support balun 120 and the reflective housing 400 is achieved by plugging and matching the ground coupling boss with the ground coupling groove. In addition, the support balun 120 may be provided with one or more ground coupling bosses, and correspondingly, the reflective housing 400 may be provided with one or more ground coupling grooves to ensure the stability of the coupling grounding.

[0072] Based on the above arrangement, by coupling and assembling the boss 123 and the groove 440 and forming a second gap therebetween, effective coupling and grounding of the radiation balun can be ensured.

[0073] refer to Fig. 9 In some embodiments, the second gap is filled with a second isolation medium 320, which separates the outer wall of the boss 123 from the inner wall of the groove 440. By filling the second isolation medium 320, the boss 123 can be firmly assembled in the groove 440, and the boss 123 is not easy to move randomly in the groove 440, thereby ensuring the position accuracy between the boss 123 and the groove 440, and to a certain extent, the coupling accuracy can be improved. In addition, the second isolation medium 320 can separate the boss 123 from the inner wall of the groove 440 to prevent the boss 123 from contacting or short-circuiting the groove 440.

[0074] Exemplarily, the second isolation medium 320 can be a dielectric sheet, the thickness of which is consistent with the spacing of the second gap, that is, the thickness of the dielectric sheet can range from 0.1 mm to 0.5 mm to ensure the sealing and filling of the second gap. In addition, the second isolation medium 320 can be made of non-metallic materials such as resin and plastic.

[0075] In some embodiments, a dielectric layer may be provided between the feed network 200 and the inner wall of the reflective cavity, and the dielectric layer forms a non-metallic support body, so as to support the feed network 200 through the non-metallic support body and separate the feed network 200 from the inner wall of the reflective cavity. Exemplarily, the dielectric layer may be made of non-metallic materials such as resin and plastic.

[0076] refer to Figure 4 and Figure 5 In order to achieve fixed installation of the feed network 200, the antenna device may further include a fixed bracket 700, which is arranged in the reflective shell 400, and the feed network 200 is arranged on the fixed bracket 700. Based on this, the fixed installation of the feed network 200 can be achieved by the fixed bracket 700, and the feed network 200 is suspended in the reflective shell 400 to ensure the stability of the feed network 200 in the reflective shell 400. The fixed bracket 700 may be made of an insulating material to ensure the insulation between the feed network 200 and the reflective shell 400. Exemplarily, the fixed bracket 700 may be made of plastic. It should be noted here that the fixed bracket 700 can play the role of a dielectric layer, which can not only support and fix the feed network 200, but also separate the feed network 200 from the inner wall of the reflective shell 400.

[0077] In some embodiments, the fixed bracket 700 may include an upper bracket and a lower bracket. During assembly, the upper bracket is located above the feeding network 200, and the lower bracket is located below the feeding network 200. In this way, the feeding network 200 is wrapped between the upper bracket and the lower bracket to protect the feeding network 200 and separate the upper and lower parts of the feeding network 200 from the reflective shell 400.

[0078] In order to enable the feeding network 200 and the fixing bracket 700 to be smoothly assembled into the reflective shell 400, it is necessary to make the total thickness of the feeding network 200 and the fixing bracket 700 in the Z direction smaller than the height of the inner diameter of the opening of the reflective shell 400 in the Z direction; and ensure that the width of the feeding network 200 and the fixing bracket 700 in the X direction is smaller than the width of the inner diameter of the opening of the reflective shell 400 in the X direction.

[0079] To improve the signal transmission efficiency, the antenna device may include multiple radiation components 100, and accordingly, the feeding network 200 may include multiple second coupling structures 210, wherein the first coupling structures 111 of the multiple radiation components 100 respectively correspond to the multiple second coupling structures 210. Through this arrangement, the signal of the feeding network 200 can be transmitted to the radiation component 100 through multiple pairs of wirelessly coupled first coupling structures 111 and second coupling structures 210, and radiated outward by the radiation component 100, thereby improving the signal transmission efficiency.

[0080] Specifically, the feeding network 200 can be provided with multiple output ends, and accordingly, the antenna device can be provided with multiple radiating components 100. Each output end can be provided with a plug-in part, and the multiple plug-in parts are respectively inserted into the respective cavities of the multiple radiating components 100, and perform contactless coupling feeding respectively, replacing the traditional feeding method through PCB board or coaxial cable welding, thereby reducing the solder joints on the link, simplifying the circuit structure, improving intermodulation, reducing losses, and improving production and processing efficiency.

[0081] In a more specific embodiment, the antenna device may include a supporting balun 120 installed on a reflective shell 400, a radiating component 100 installed on the supporting balun 120, a feeding core 110 disposed in the supporting balun 120 and electrically connected to the radiating component 100, and a feeding network 200 disposed in the reflective shell 400.

[0082] A coupling tube 1111 is provided at the end of the feed core 110, and the coupling tube 1111 and the feed core 110 can be an integrally formed structure, which can be integrally formed by casting, forging, stamping or die-casting. A feed needle 211 is provided at the output end of the feed network 200, and the feed needle 211 is at least partially inserted into the coupling tube 1111 for contactless coupling feeding.

[0083] Based on the above antenna device, an embodiment of the present application further discloses a communication device, and the disclosed communication device includes the above antenna device.

[0084] In summary, the antenna device and the communication device including the antenna device provided in the embodiments of the present application can reduce the solder joints between the radiation component 100 and the feeding network 200, thereby ensuring the antenna intermodulation index and stability.

[0085] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An antenna device, characterized in that: include: Radiating element (100) and feeding network (200); The radiation component (100) has a first coupling structure (111); The feed network (200) comprises a second coupling structure (210); One of the first coupling structure (111) and the second coupling structure (210) is provided with a cavity, and the other is provided with an inserting portion, at least part of the inserting portion is provided in the cavity, and a first gap is provided between the inserting portion and the inner wall of the cavity.

2. The antenna device according to claim 1, characterized in that The first coupling structure (111) comprises a coupling tube (1111), and the lumen of the coupling tube (1111) forms the cavity; The second coupling structure (210) comprises a feed needle (211), and the feed needle (211) is connected to the output end of the feed network (200); One end of the feed needle (211) facing away from the output end of the feed network (200) is inserted into the coupling tube (1111), and the first gap is provided between the outer wall of the feed needle (211) and the tube wall of the coupling tube (1111).

3. The antenna device according to claim 1, characterized in that: The first gap is filled with a first isolation medium (310), and the first isolation medium (310) separates the plug-in portion from the inner wall of the cavity.

4. The antenna device according to claim 1, characterized in that: The antenna device further comprises a reflective shell (400), the feed network (200) is arranged inside the reflective shell (400), and the radiation component (100) is arranged outside the reflective shell (400); The side wall of the reflective shell (400) is provided with an avoidance hole (410), and the first coupling structure (111) or the second coupling structure (210) passes through the avoidance hole (410).

5. The antenna device according to claim 4, characterized in that: The radiation component (100) is connected to one of the side walls of the reflective shell (400), and the surface of the side wall located outside the reflective shell (400) is a reflection surface for reflecting electromagnetic wave signals; The avoidance hole (410) is opened on the side wall.

6. The antenna device according to claim 4, characterized in that: The radiation component (100) comprises a feed core (110) provided with the first coupling structure (111), a support balun (120), and a radiation unit (130) connected to the support balun (120); The feed core (110) is disposed in the supporting balun (120) and is electrically connected to the radiation unit (130); The supporting balun (120) is connected to the reflective housing (400).

7. The antenna device according to claim 6, characterized in that: The supporting balun (120) is provided with a first mounting hole (121), and the side wall of the reflecting housing (400) is provided with a second mounting hole (420); The first mounting hole (121) and the second mounting hole (420) are arranged correspondingly, and fasteners (500) are inserted through both.

8. The antenna device according to claim 6, characterized in that: The antenna device further comprises a mounting member (600), wherein the mounting member (600) comprises a first clamping structure (610) and a second clamping structure (620); The supporting balun (120) is provided with a third clamping structure (122), and the third clamping structure (122) is clamped and matched with the first clamping structure (610); The reflective shell (400) is provided with a fourth clamping structure (430), and the fourth clamping structure (430) is clamped and matched with the second clamping structure (620).

9. The antenna device according to claim 6 or 8, characterized in that: The supporting balun (120) is provided with a third coupling structure, and the side wall of the reflecting housing (400) is provided with a fourth coupling structure; One of the third coupling structure and the fourth coupling structure is a boss (123), and the other is a groove (440); the boss (123) is arranged in the groove (440), and a second gap is provided between the outer wall of the boss (123) and the inner wall of the groove (440).

10. The antenna device according to claim 9, characterized in that: The second gap is filled with a second isolation medium (320), and the second isolation medium (320) separates the outer wall of the boss (123) from the inner wall of the groove (440).

11. The antenna device according to claim 4, characterized in that: The antenna device further comprises a fixing bracket (700), wherein the fixing bracket (700) is arranged in the reflective housing (400); The feed network (200) is arranged on the fixing bracket (700).

12. The antenna device according to claim 1, characterized in that The antenna device comprises a plurality of the radiation components (100), and the feed network (200) comprises a plurality of the second coupling structures (210); The first coupling structures (111) of each of the plurality of radiation components (100) respectively correspond to and cooperate with the plurality of the second coupling structures (210).

13. A communication device, characterized in that: The antenna device comprises any one of claims 1 to 12.

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