Antenna apparatus and communication device

Abstract

The present application relates to the technical field of wireless communications. Disclosed are an antenna apparatus and a communication device. The antenna apparatus comprises a radiation assembly and a feed network; wherein the radiation assembly has 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 is provided with a plug-in portion; at least part of the plug-in portion is arranged in the cavity; and there is a first gap between the plug-in portion and an inner wall of the cavity. The communication device comprises the antenna apparatus.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese Patent Application No. 202310795434.4 filed on June 30, 2023, entitled "Antenna apparatus and communication device", the entirety of which is incorporated herein by reference.TECHNICAL FIELD

[0002] The application relates to the technical field of wireless communications, and in particular to an antenna apparatus and communication device.BACKGROUD

[0003] With the rapid development of wireless communication technology, the system imposes higher requirements for a base station antenna, such as high integration, high radiation efficiency, high index requirement, and environmental protection.

[0004] A feed element and a feed network of an antenna unit are connected in a soldering-free manner, which can greatly reduce energy consumption and use of solder wire during soldering, and greatly improve the production efficiency. Meanwhile, cancelling of a cable or a PCB adapter board reduces the dielectric loss, improves the radiation efficiency, and thus becomes a trend of future antenna design. However, in such technology, soldering-free connection between the feed element and the feed network cannot meet the stability requirement and broadband characteristic, which influences the antennae reliability and impedes broadband design.SUMMARY

[0005] The embodiments of the present application provide an antenna apparatus, the antenna apparatus includes: a radiation assembly and a feed network; wherein the radiation assembly has a first coupling structure; the feed network includes 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 same is provided with a plug-in portion; at least part of the plug-in portion is arranged in the cavity; and there is a first gap between the plug-in portion and an inner wall of the cavity.

[0006] The embodiments of the present application further provide a communication device including the above-mentioned antenna apparatus.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. 1 illustrates a schematic diagram of non-contact coupling feed disclosed in embodiments of the present application. FIG. 2 illustrates a schematic stereoscopic structural diagram of an antenna apparatus disclosed in embodiments of the present application. FIG. 3 illustrates a top view of an antenna apparatus disclosed in embodiments of the present application. FIG. 4 illustrates a disassembly diagram of an antenna apparatus without a reflection housing disclosed in embodiments of the present application. FIG. 5 illustrates a schematic structural diagram of an antenna apparatus without a radiation unit disclosed in embodiments of the present application. FIG. 6 illustrates a schematic structural diagram of an antenna apparatus including a plurality of radiation assemblies disclosed in embodiments of the present application. FIG. 7 illustrates a schematic stereoscopic structural diagram of an antenna apparatus of another form disclosed in embodiments of the present application. FIG. 8 illustrates a side view of an antenna apparatus in another form disclosed of embodiments of the present application. FIG. 9 illustrates a disassembly diagram of an antenna apparatus of another form disclosed in embodiments of the present application; FIG. 10 illustrates a schematic structural diagram of a radiation assembly in an antenna apparatus of another form disclosed in embodiments of the present application. FIG. 11 illustrates a schematic diagram of another non-contact coupling feeding disclosed in embodiments of the present application. List of reference signs:

[0008] 100 - radiation assembly; 110 - feed core; 111 - first coupling structure; 1111 - coupling tube; 120 - supporting balun; 121 - first mounting hole; 122 - third snap-fit structure; 123 - boss; 130 - radiation unit; 200 - feed network; 210 - second coupling structure; 211 - feed pin; 310 - first isolation medium; 320 - second isolation medium; 400 - reflection housing; 410 - clearance hole; 420 - second mounting hole; 430 - fourth snap-fit structure; 440 - recess; 500 - fastener; 600 - mounting member; 610 - first snap-fit structure; 620 - second snap-fit structure; 700 - fixing bracket. DETAILED DESCRIPTION

[0009] Technical solutions in embodiments of the application will be described clearly and thoroughly below with reference to the accompanying drawings in embodiments of the application. Apparently, the embodiments described are part of the embodiments of the application rather than all of the embodiments. All other embodiments obtained by a person skilled in the art without creative work based on embodiments in the application should fall within the scope of the application.

[0010] The terms "first", "second", and the like in the description and in the claims of the application are used to distinguish between similar objects rather than describing a specific order or a sequence. It is to be understood that data used in such a way may be interchanged where appropriate, whereby embodiments of the application can be implemented in an order other than those illustrated or described herein, the objects distinguished by "first", "second", etc., are generally of one type, and the number of objects is not limited, for example, a first object may refer to one or more first objects. In addition, "and / or" in the description and claims indicates at least one of the objects connected therewith, and the character " / " generally indicates that the objects associated therewith are in an "or" relationship.

[0011] The embodiments of the present application will be described in detail by particulars embodiment and application scenarios thereof with reference to the accompanying drawings.

[0012] Referring to FIG. 1 to FIG. 11, an embodiment of the present application discloses an antenna apparatus applied to a communication device, the disclosed antenna apparatus includes a radiation assembly 100 and a feed network 200.

[0013] As shown in FIG. 1 and FIG. 11, the radiation assembly 100 has a first coupling structure 111, correspondingly, the feed network 200 includes a second coupling structure 210. The first coupling structure 111 is coupled to the second coupling structure 210, so that a signal can be transmitted from the second coupling structure 210 to the first coupling structure 111, thereby enabling non-contact coupling feeding.

[0014] One of the first coupling structure 111 and the second coupling structure 210 is provided with a cavity, the other one of the same is provided with a plug-in portion, at least part of the plug-in portion is arranged in the cavity, and there is a first gap between the plug-in portion and an 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., it may also be other values, which is not specifically limited here.

[0015] Exemplarily, 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, as shown in FIG. 1; alternatively, the first coupling structure 111 may be provided with a plug-in portion, and the second coupling structure 210 may be provided with a cavity, as shown in FIG. 11.

[0016] In embodiments of the present application, cascaded feeding between the feed network 200 and the radiation assembly 100 is implemented by coupling feeding between the first coupling structure 111 and the second coupling structure 210. In some cases, at least part of the plug-in portion is inserted into the cavity to form a first gap therebetween, so as to implement non-contact coupling feeding. Compared with traditional soldering methods, the non-contact coupling feeding approach in the present application can eliminate environmental pollution caused by soldering, and avoid tin plating, thereby ensuring the radiation efficiency and reducing the number of solder joints between the radiation assembly and the feed network. This can mitigate the risk of intermodulation among the links, thereby improving the intermodulation index and the stability of the antenna apparatus. It also makes the antenna apparatus more consistent, reduces losses and simplifies the feeding structure of the antenna apparatus. To some extent, the assembly efficiency of the antenna apparatus is improved, the assembly energy consumption of the entire antenna apparatus is reduced, and the production cost is reduced.

[0017] In addition, compared with some current solder-free methods, the embodiments of the present application propose a new antenna apparatus form, which implements signal transmission by non-contact coupling feeding, thereby meeting the requirement for a solder-free, wide-bandwidth, high-intermodulation and high- stability -antenna apparatus by a communication system.

[0018] It should be noted that during operation of an antenna apparatus, the close distance between the plug-in portion and the cavity may generate coupled electromagnetic energy, and may further generate electric current (such as generating current on the feed core 110), and the energy is radiated outward by the radiation assembly 100, thereby realizing wide bandwidth, high intermodulation performance, and high stability.

[0019] Exemplarily, the feed network 200 may be in the form of a metal strip line or an air strip line. In addition, the feed network 200 may operate as a strip line, which is manufactured by sheet metal stamping, such that the feed network 200 may also be called a sheet metal strip line. Alternatively, the feed network 200 may also be in the form of a PCB.

[0020] Referring to FIG. 1 and FIG. 3, in some embodiments, the first coupling structure 111 may include a coupling tube 1111, and a tube cavity of the coupling tube 1111 forms a cavity. Exemplarily, one end of the coupling tube 1111 is closed and the other end of the same is open, wherein the closed end may be connected to the main body of the feed core 110, and the open end may be inserted into the plug-in portion.

[0021] 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 an output end of the feed network 200, and the end, away from the output end of the feed network 200, of the feed pin 211 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, during operation of the antenna apparatus, the feed pins 211 of different ports of the feed network 200 may generate coupled electromagnetic energy to the corresponding coupling tubes 1111 at a close distance, thereby generating electric current (such as generating current on the feed core 110), and the energy is radiated outward by the radiation assembly 100.

[0022] Based on the above-mentioned configuration, the cascade feeding between the feed network 200 and the radiation assembly 100 is implemented by inserting the feeding pin 211 at the output end of the feed network 200 into the coupling tube 1111 at one end of the feeding core 110 of the radiation assembly 100, thereby implementing a non-contact coupling feeding method. Compared with traditional methods, the non-contact coupling feeding method can reduce solder joints and mitigate the risk of intermodulation among the links, thereby improving the consistency of the antenna apparatus.

[0023] Exemplarily, the coupling tube 1111 may be in the form of a circular tube, a polygonal tube, etc.; correspondingly, the feed pin 211 may be in the form of a cylindrical pin, a polygonal pin, etc., so as to adapt to the shape of the coupling tube 1111 and ensure the uniformity of the first gap. In addition, the feed pin 211 may be integrally formed with the output end of the feed network 200, such as by casting, forging, stamping or die-casting.

[0024] To implement effective coupling feeding, the inner diameter of the coupling tube 1111 is greater than the outer diameter of the feed pin 211 by 0.1 mm to 0.5 mm, that is, the outer surface of the feed pin 211 is 0.1 mm to 0.5 mm away from the inner surface of the coupling tube 1111, so as to form a first gap. In addition, the depth inside the coupling tube 1111 is greater than the length of the feed pin 211 by 0.1 - 0.5 mm.

[0025] The length of the feed pin 211 may be 0.1 to 0.2 times of the wavelength corresponding to the operating center frequency of the antenna apparatus.

[0026] In other embodiments, both the first coupling structure 111 and the second coupling structure 210 may be in the form of coupling sheets, and non-contact coupling feeding may be implemented by the coupling sheets.

[0027] With continued reference to FIG. 3, in some embodiments, the first gap is filled with a first isolation medium 310, and the first isolation medium 310 isolates the plug-in portion from the inner wall of the cavity. By filling the first isolation medium 310, the plug-in portion can be firmly inserted into the cavity, and the plug-in portion is prevented from moving freely within the cavity, so as to ensure the position accuracy between the plug-in portion and the cavity, and improve the coupling accuracy to some extent. In addition, the first isolation medium 310 may isolate the plug-in portion from the inner wall of the cavity, so as to prevent contact or short-circuit between the plug-in portion and the cavity.

[0028] In the assembly process of the antenna apparatus, the plug-in portion may be directly inserted into the cavity by penetrating through the first isolation medium 310, so as to perform non-contact coupling feeding. In this way, on one hand, it is unnecessary to connect the feed network 200 with the radiation assembly 100 by means of soldering, thereby avoiding environment pollution caused by electroplating soldering, and reducing the cost. In addition, tin plating is not needed, so that the radiation efficiency is ensured, solder joints are reduced, the product performance is ensured, and the reliability of the intermodulation index is ensured. Furthermore, a snap-fit manner is used to implement coupling of electrical signals and improve the assembly efficiency.

[0029] Exemplarily, the first isolation medium 310 may be an annular medium that surrounds the periphery of the plug-in portion, thereby completely isolating 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 a non-metallic material such as resin and plastic.

[0030] Referring to FIG. 1 to FIG. 3, in some embodiments, the antenna apparatus may further include a reflection housing 400, the feed network 200 is arranged inside the reflection housing 400, and the radiation assembly 100 is arranged outside the reflection housing 400. The radiation assembly 100 may be fixed onto the reflection housing 400 to ensure the stability of the radiation assembly 100. Additionally, the reflection housing 400 may also reflect electromagnetic wave signals, thereby realizing a reflection function. In addition, the reflection housing 400 may also protect the feed network 200 therein, so as to prevent the feed network 200 from being affected by the outside. Exemplarily, the reflection housing 400 may be of a metal material.

[0031] Considering that the radiation assembly 100 is located outside the reflection housing 400, the feed network 200 is located inside the reflection housing 400, and coupling feeding may be implemented between the radiation assembly 100 and the feed network 200 without interference, a side wall of the reflection housing 400 may be provided with a clearance hole 410, and the first coupling structure 111 or the second coupling structure 210 penetrates through the clearance hole 410. Based on this, by means of the arrangement of the clearance hole 410, signals can be transmitted between the first coupling structure 111 and the second coupling structure 210 without influence by the reflection cavity.

[0032] Further, the radiation assembly 100 is connected to one of side walls of the reflection housing 400, and a surface, located outside the reflection housing 400, of the side wall is a reflection surface for reflecting electromagnetic wave signals, and the clearance hole 410 is arranged in the side wall. Exemplarily, in actual working conditions, the outer surface of the top wall of the reflection housing 400 may be a reflection surface, which can reflect electromagnetic wave signals emitted by the radiation assembly 100, so as to facilitate the propagation of electromagnetic wave signals.

[0033] Exemplarily, both ends in the Y direction of the reflection housing 400 may be provided with openings respectively, and during assembly, the feed network 200 may be assembled into the reflection housing 400 through either opening.

[0034] Referring to FIG. 1 to FIG. 5, in some embodiments, the radiation assembly 100 may include a feed core 110 provided with a first coupling structure 111, a supporting balun 120, and a radiation unit 130 connected to the supporting balun 120, wherein the feed core 110 is arranged in the supporting balun 120 and is electrically connected to the radiation unit 130, and the supporting balun 120 is connected to the reflection housing 400.

[0035] The supporting balun 120 may be provided with a channel, and the feed core 110 is arranged in the channel in a penetrating manner, the supporting balun 120 not only serves to secure the feed core 110, but also protects the feed core 110, so as 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 secure the radiation unit 130 so as to ensure the stability of the radiation unit 130.

[0036] In some embodiments, the radiation assembly 100 may include a plurality of radiation units 130, and the plurality of radiation units 130 may be all connected to the supporting balun 120, such that the plurality of radiation units 130 may be fixedly mounted by the common supporting balun 120.

[0037] Exemplarily, the feed core 110 and the radiation unit 130 may be both manufactured by metal die-casting.

[0038] In order to implement the connection between the radiation assembly 100 and the reflection housing 400, the supporting balun 120 may be provided with a first mounting hole 121, correspondingly, the side wall of the reflection housing 400 may be provided with a second mounting hole 420, when the supporting balun 120 is mounted to the reflection housing 400, the first mounting hole 121 is aligned with the second mounting hole 420, so as to facilitate arrangement of the fastener 500 in the first mounting hole 121 and the second mounting hole 420 in the penetrating manner, such that the supporting balun 120 and the reflection housing 400 may be securely fixed.

[0039] Exemplarily, the first mounting hole 121 may be a threaded hole, and the second mounting hole 420 may be a smooth hole, correspondingly, the fastener 500 may be a screw, a screw rod, a bolt, etc. The supporting balun 120 may be securely fixed to the side wall of the reflection housing 400 by the fastener 500, so as to ensure the stability of the supporting balun 120 on the reflection housing 400 and the stability of the radiation unit 130 connected to the supporting balun 120. Alternatively, the second mounting hole 420 may also be a threaded hole, the first mounting hole 121 may be a smooth hole, and the fastener 500 may be a screw, a screw rod, a bolt, etc. The fastener 500 penetrates through the supporting balun 120 and is threadedly connected to the second mounting hole 420, so as to implement fixed installation of the supporting balun 120.

[0040] In addition, the fastener 500 is fixed, so that the supporting balun 120 can be removed from the reflection housing 400, thereby providing convenience for maintenance.

[0041] Referring to FIG. 7 to FIG. 9, in other embodiments, the antenna apparatus may further include a mounting member 600, the mounting member 600 is connected between the supporting balun 120 and the reflection housing 400, the use of the mounting member 600 can ensure a secure and stable installation of the supporting balun 120 and close fit between the supporting balun 120 and the reflection housing 400, while facilitate the disassembly of the supporting balun 120.

[0042] Furthermore, the mounting member 600 may include a first snap-fit structure 610 and a second snap-fit structure 620, correspondingly, the supporting balun 120 may be provided with a third snap-fit structure 122, and the third snap-fit structure 122 is engaged with the first snap-fit structure 610. Based on this, a secure installation between the supporting balun 120 and the radiation assembly 100 can be implemented, and snap-fitting can also facilitate disassembly of the supporting balun 120 from the radiation assembly 100, thereby facilitating maintenance of the antenna apparatus.

[0043] Exemplarily, one of the first snap-fit structure 610 and the third snap-fit structure 122 may be a snap protrusion, a snap head, etc., and the other of the same may be a snap groove, a snap hole, etc., so as to ensure the fastness between the supporting balun 120 and the radiation assembly 100 when snap-fitting, and facilitate separation of the first snap-fit structure 610 from the third snap-fit structure 122, so as to facilitate disassembly and assembly of the supporting balun 120.

[0044] In addition, the reflection housing 400 may include a fourth snap-fit structure 430, and the fourth snap-fit structure 430 is engaged with the second snap-fit structure 620. Based on this, a secure installation between the supporting balun 120 and the reflection housing 400 can be implemented, and the snap-fitting can also facilitate disassembly of the supporting balun 120 from the reflection housing 400, thereby facilitating maintenance of the antenna apparatus.

[0045] Exemplarily, one of the second snap-fit structure 620 and the fourth snap-fit structure 430 may be a snap protrusion, a snap head, etc., and the other of the same may be a snap groove, a snap hole, etc., so as to ensure the fastness between the supporting balun 120 and the reflection housing 400 when snap-fitting, and facilitate separation of the second snap-fit structure 620 from the fourth snap-fit structure 430, so as to facilitate disassembly and assembly of the supporting balun 120.

[0046] In order to implement coupling and grounding of the radiation unit 130, the radiation assembly 100 and the reflection cavity may be assembled in a plug-in assembly manner.

[0047] In some embodiments, the supporting balun 120 may be provided with a third coupling structure, and the side wall of the reflection housing 400 may be provided with a fourth coupling structure, by engaging the third coupling structure with the fourth coupling structure, coupling between the supporting balun 120 and the reflection housing 400 may be implemented, and coupling and grounding between the supporting balun 120 and the reflection housing 400 can be realized.

[0048] One of the third coupling structure and the fourth coupling structure is a boss 123, and the other of the same is a recess 440, the boss 123 is arranged in the recess 440, and there is a second gap between an outer wall of the boss 123 and an inner wall of the recess 440. The second 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., it may also be other values, which is not specifically limited here.

[0049] Exemplarily, the supporting balun 120 may be provided with a grounding coupling boss, and the reflection housing 400 may be provided with a grounding coupling recess, coupling and grounding between the supporting balun 120 and the reflection housing 400 can be implemented by plug-in engagement of the grounding coupling boss and the grounding coupling recess. In addition, the supporting balun 120 may be provided with one or more ground coupling bosses, correspondingly, the reflection housing 400 may be provided with one or more ground coupling recesses, so as to ensure stability of coupling and grounding.

[0050] Based on the above arrangement, by coupling assembly between the boss 123 and the recess 440 as well as a second gap formed therebetween, effective coupling and grounding of the radiation balun can be ensured.

[0051] Referring to FIG. 9, in some embodiments, the second gap is filled with a second isolation medium 320, and the second isolation medium 320 isolates an outer wall of the boss 123 from an inner wall of the recess 440. By filling the second isolation medium 320, the boss 123 can be firmly inserted into the recess 440, and the boss 123 is prevented from moving freely within the recess 440, so as to ensure the position accuracy between the boss 123 and the recess 440, and improve the coupling accuracy to some extent. In addition, the second isolation medium 320 can isolate the boss 123 from the inner wall of the recess 440, so as to prevent contact or short-circuit between the boss 123 and the recess 440.

[0052] Exemplarily, the second isolation medium 320 may be a dielectric sheet, the thickness of the dielectric sheet is consistent with the spacing of the second gap, that is, the thickness of the dielectric sheet may range from 0.1 mm to 0.5 mm, so as to ensure sealing and filling of the second gap. In addition, the second isolation medium 320 may be made of a non-metallic material such as resin, plastic, etc.

[0053] In some embodiments, a dielectric layer may be provided between the feed network 200 and an inner wall of the reflection cavity, and the dielectric layer forms a non-metallic support body, so as to support the feed network 200 by the non-metallic support body and isolate the feed network 200 from the inner wall of the reflection cavity. Exemplarily, the dielectric layer may be made of a non-metallic material such as resin, plastic, etc.

[0054] Referring to FIG. 4 and FIG. 5, in order to implement secure installation of the feed network 200, the antenna apparatus may further include a fixing bracket 700, the fixing bracket 700 is arranged in the reflection housing 400, and the feed network 200 is arranged in the fixing bracket 700. Based on this, the secure installation of the feed network 200 may be implemented by the fixing bracket 700, and the feed network 200 is suspended in the reflection housing 400, so as to ensure the stability of the feed network 200 inside the reflection housing 400. The fixing bracket 700 may be made of an insulating material so as to ensure the insulation of the feed network 200 from the reflection housing 400. Exemplarily, the fixing bracket 700 may be made of a plastic material. It should be noted here that the fixing bracket 700 may serve as a dielectric layer, which not only supports and secures the feed network 200, but also isolates the feed network 200 from an inner wall of the reflection housing 400.

[0055] In some embodiments, the fixing bracket 700 may include an upper bracket and a lower bracket, during assembly, the upper bracket is located above the feed network 200, and the lower bracket is located below the feed network 200. In this way, the feed network 200 is wrapped between the upper bracket and the lower bracket, so as to protect the feed network 200 and isolate the upper and lower parts of the feed network 200 from the reflection housing 400.

[0056] In order to enable the feed network 200 and the fixing bracket 700 to be properly assembled into the reflection housing 400, the total thickness of the feed network 200 and the fixing bracket 700 in the Z direction has to be less than the inner diameter height in the Z direction of an opening of the reflection housing 400; additionally, the width of the feed network 200 and the fixing bracket 700 in the X direction has to be less than the inner diameter height in the X direction of an opening of the reflection housing 400.

[0057] In order to improve efficiency of signal transmission, the antenna apparatus may include a plurality of radiation assemblies 100, correspondingly, the feed network 200 may include a plurality of second coupling structures 210, wherein the first coupling structures 111 of the plurality of radiation assemblies 100 are engaged with the plurality of second coupling structures 210 correspondingly and respectively. With this arrangement, a signal of the feed network 200 may be transmitted to the radiation assembly 100 by a plurality of wirelessly coupled first coupling structures 111 and second coupling structures 210 pairs, and radiated outwards by the radiation assembly 100, thereby improving the efficiency of signal transmission.

[0058] In some cases, the feed network 200 may be provided with a plurality of output ends, correspondingly, the antenna apparatus may be provided with a plurality of radiation assemblies 100, each output end may be provided with a plug-in portion, and the plurality of plug-in portions are respectively inserted into the respective cavities of the plurality of radiation assemblies 100 so as to implement non-contact coupling feeding, which may replace traditional feeding methods by PCB board or coaxial cable soldering, thereby reducing solder joints on links, simplifying the circuit structure, improving intermodulation, reducing losses, and improving efficiency of production and processing.

[0059] In another embodiment, the antenna apparatus may include a supporting balun 120 mounted to a reflection housing 400, a radiation assembly 100 mounted to the supporting balun 120, a feed core 110 arranged in the supporting balun 120 and electrically connected to the radiation assembly 100, and a feed network 200 arranged in the reflection housing 400.

[0060] A coupling tube 1111 is arranged at an end of the feed core 110, the coupling tube 1111 and the feed core 110 may be an integrally formed structure, which may be integrally formed by casting, forging, stamping or die-casting; a feed pin 211 is arranged at an output end of the feed network 200, and the feed pin 211 is at least partially inserted into the coupling tube 1111 for implementing non-contact coupling feeding.

[0061] Based on the above-mentioned antenna apparatus, the embodiments of the present application further provide a communication device, and the disclosed communication device includes the above-mentioned antenna apparatus.

[0062] In summary, the antenna apparatus and the communication device including the antenna apparatus provided in the embodiments of the present application can reduce solder joints between the radiation assembly 100 and the feed network 200, thereby ensuring the antenna intermodulation index and stability.

[0063] The embodiments of the application are described above in conjunction with the accompanying drawings, but the application is not limited to the above-mentioned particular embodiments that are merely illustrative rather than limiting, a wide variety of forms can be made by a person skilled in the art under teachings of the application without departing from the spirit and scope of the application, and such forms all fall within the scope of the claims.

Examples

Embodiment Construction

[0009]Technical solutions in embodiments of the application will be described clearly and thoroughly below with reference to the accompanying drawings in embodiments of the application. Apparently, the embodiments described are part of the embodiments of the application rather than all of the embodiments. All other embodiments obtained by a person skilled in the art without creative work based on embodiments in the application should fall within the scope of the application.

[0010]The terms "first", "second", and the like in the description and in the claims of the application are used to distinguish between similar objects rather than describing a specific order or a sequence. It is to be understood that data used in such a way may be interchanged where appropriate, whereby embodiments of the application can be implemented in an order other than those illustrated or described herein, the objects distinguished by "first", "second", etc., are generally of one type, and the number of o...

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese Patent Application No. 202310795434.4 filed on June 30, 2023, entitled "Antenna apparatus and communication device", the entirety of which is incorporated herein by reference.TECHNICAL FIELD

[0002] The application relates to the technical field of wireless communications, and in particular to an antenna apparatus and communication device.BACKGROUD

[0003] With the rapid development of wireless communication technology, the system imposes higher requirements for a base station antenna, such as high integration, high radiation efficiency, high index requirement, and environmental protection.

[0004] A feed element and a feed network of an antenna unit are connected in a soldering-free manner, which can greatly reduce energy consumption and use of solder wire during soldering, and greatly improve the production efficiency. Meanwhile, cancelling of a cable or a PCB adapter board reduces the dielectric loss, improves the radiation efficiency, and thus becomes a trend of future antenna design. However, in such technology, soldering-free connection between the feed element and the feed network cannot meet the stability requirement and broadband characteristic, which influences the antennae reliability and impedes broadband design.SUMMARY

[0005] The embodiments of the present application provide an antenna apparatus, the antenna apparatus includes: a radiation assembly and a feed network; wherein the radiation assembly has a first coupling structure; the feed network includes 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 same is provided with a plug-in portion; at least part of the plug-in portion is arranged in the cavity; and there is a first gap between the plug-in portion and an inner wall of the cavity.

[0006] The embodiments of the present application further provide a communication device including the above-mentioned antenna apparatus.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. 1 illustrates a schematic diagram of non-contact coupling feed disclosed in embodiments of the present application. FIG. 2 illustrates a schematic stereoscopic structural diagram of an antenna apparatus disclosed in embodiments of the present application. FIG. 3 illustrates a top view of an antenna apparatus disclosed in embodiments of the present application. FIG. 4 illustrates a disassembly diagram of an antenna apparatus without a reflection housing disclosed in embodiments of the present application. FIG. 5 illustrates a schematic structural diagram of an antenna apparatus without a radiation unit disclosed in embodiments of the present application. FIG. 6 illustrates a schematic structural diagram of an antenna apparatus including a plurality of radiation assemblies disclosed in embodiments of the present application. FIG. 7 illustrates a schematic stereoscopic structural diagram of an antenna apparatus of another form disclosed in embodiments of the present application. FIG. 8 illustrates a side view of an antenna apparatus in another form disclosed of embodiments of the present application. FIG. 9 illustrates a disassembly diagram of an antenna apparatus of another form disclosed in embodiments of the present application; FIG. 10 illustrates a schematic structural diagram of a radiation assembly in an antenna apparatus of another form disclosed in embodiments of the present application. FIG. 11 illustrates a schematic diagram of another non-contact coupling feeding disclosed in embodiments of the present application. List of reference signs:

[0008] 100 - radiation assembly; 110 - feed core; 111 - first coupling structure; 1111 - coupling tube; 120 - supporting balun; 121 - first mounting hole; 122 - third snap-fit structure; 123 - boss; 130 - radiation unit; 200 - feed network; 210 - second coupling structure; 211 - feed pin; 310 - first isolation medium; 320 - second isolation medium; 400 - reflection housing; 410 - clearance hole; 420 - second mounting hole; 430 - fourth snap-fit structure; 440 - recess; 500 - fastener; 600 - mounting member; 610 - first snap-fit structure; 620 - second snap-fit structure; 700 - fixing bracket. DETAILED DESCRIPTION

[0009] Technical solutions in embodiments of the application will be described clearly and thoroughly below with reference to the accompanying drawings in embodiments of the application. Apparently, the embodiments described are part of the embodiments of the application rather than all of the embodiments. All other embodiments obtained by a person skilled in the art without creative work based on embodiments in the application should fall within the scope of the application.

[0010] The terms "first", "second", and the like in the description and in the claims of the application are used to distinguish between similar objects rather than describing a specific order or a sequence. It is to be understood that data used in such a way may be interchanged where appropriate, whereby embodiments of the application can be implemented in an order other than those illustrated or described herein, the objects distinguished by "first", "second", etc., are generally of one type, and the number of objects is not limited, for example, a first object may refer to one or more first objects. In addition, "and / or" in the description and claims indicates at least one of the objects connected therewith, and the character " / " generally indicates that the objects associated therewith are in an "or" relationship.

[0011] The embodiments of the present application will be described in detail by particulars embodiment and application scenarios thereof with reference to the accompanying drawings.

[0012] Referring to FIG. 1 to FIG. 11, an embodiment of the present application discloses an antenna apparatus applied to a communication device, the disclosed antenna apparatus includes a radiation assembly 100 and a feed network 200.

[0013] As shown in FIG. 1 and FIG. 11, the radiation assembly 100 has a first coupling structure 111, correspondingly, the feed network 200 includes a second coupling structure 210. The first coupling structure 111 is coupled to the second coupling structure 210, so that a signal can be transmitted from the second coupling structure 210 to the first coupling structure 111, thereby enabling non-contact coupling feeding.

[0014] One of the first coupling structure 111 and the second coupling structure 210 is provided with a cavity, the other one of the same is provided with a plug-in portion, at least part of the plug-in portion is arranged in the cavity, and there is a first gap between the plug-in portion and an 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., it may also be other values, which is not specifically limited here.

[0015] Exemplarily, 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, as shown in FIG. 1; alternatively, the first coupling structure 111 may be provided with a plug-in portion, and the second coupling structure 210 may be provided with a cavity, as shown in FIG. 11.

[0016] In embodiments of the present application, cascaded feeding between the feed network 200 and the radiation assembly 100 is implemented by coupling feeding between the first coupling structure 111 and the second coupling structure 210. In some cases, at least part of the plug-in portion is inserted into the cavity to form a first gap therebetween, so as to implement non-contact coupling feeding. Compared with traditional soldering methods, the non-contact coupling feeding approach in the present application can eliminate environmental pollution caused by soldering, and avoid tin plating, thereby ensuring the radiation efficiency and reducing the number of solder joints between the radiation assembly and the feed network. This can mitigate the risk of intermodulation among the links, thereby improving the intermodulation index and the stability of the antenna apparatus. It also makes the antenna apparatus more consistent, reduces losses and simplifies the feeding structure of the antenna apparatus. To some extent, the assembly efficiency of the antenna apparatus is improved, the assembly energy consumption of the entire antenna apparatus is reduced, and the production cost is reduced.

[0017] In addition, compared with some current solder-free methods, the embodiments of the present application propose a new antenna apparatus form, which implements signal transmission by non-contact coupling feeding, thereby meeting the requirement for a solder-free, wide-bandwidth, high-intermodulation and high- stability -antenna apparatus by a communication system.

[0018] It should be noted that during operation of an antenna apparatus, the close distance between the plug-in portion and the cavity may generate coupled electromagnetic energy, and may further generate electric current (such as generating current on the feed core 110), and the energy is radiated outward by the radiation assembly 100, thereby realizing wide bandwidth, high intermodulation performance, and high stability.

[0019] Exemplarily, the feed network 200 may be in the form of a metal strip line or an air strip line. In addition, the feed network 200 may operate as a strip line, which is manufactured by sheet metal stamping, such that the feed network 200 may also be called a sheet metal strip line. Alternatively, the feed network 200 may also be in the form of a PCB.

[0020] Referring to FIG. 1 and FIG. 3, in some embodiments, the first coupling structure 111 may include a coupling tube 1111, and a tube cavity of the coupling tube 1111 forms a cavity. Exemplarily, one end of the coupling tube 1111 is closed and the other end of the same is open, wherein the closed end may be connected to the main body of the feed core 110, and the open end may be inserted into the plug-in portion.

[0021] 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 an output end of the feed network 200, and the end, away from the output end of the feed network 200, of the feed pin 211 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, during operation of the antenna apparatus, the feed pins 211 of different ports of the feed network 200 may generate coupled electromagnetic energy to the corresponding coupling tubes 1111 at a close distance, thereby generating electric current (such as generating current on the feed core 110), and the energy is radiated outward by the radiation assembly 100.

[0022] Based on the above-mentioned configuration, the cascade feeding between the feed network 200 and the radiation assembly 100 is implemented by inserting the feeding pin 211 at the output end of the feed network 200 into the coupling tube 1111 at one end of the feeding core 110 of the radiation assembly 100, thereby implementing a non-contact coupling feeding method. Compared with traditional methods, the non-contact coupling feeding method can reduce solder joints and mitigate the risk of intermodulation among the links, thereby improving the consistency of the antenna apparatus.

[0023] Exemplarily, the coupling tube 1111 may be in the form of a circular tube, a polygonal tube, etc.; correspondingly, the feed pin 211 may be in the form of a cylindrical pin, a polygonal pin, etc., so as to adapt to the shape of the coupling tube 1111 and ensure the uniformity of the first gap. In addition, the feed pin 211 may be integrally formed with the output end of the feed network 200, such as by casting, forging, stamping or die-casting.

[0024] To implement effective coupling feeding, the inner diameter of the coupling tube 1111 is greater than the outer diameter of the feed pin 211 by 0.1 mm to 0.5 mm, that is, the outer surface of the feed pin 211 is 0.1 mm to 0.5 mm away from the inner surface of the coupling tube 1111, so as to form a first gap. In addition, the depth inside the coupling tube 1111 is greater than the length of the feed pin 211 by 0.1 - 0.5 mm.

[0025] The length of the feed pin 211 may be 0.1 to 0.2 times of the wavelength corresponding to the operating center frequency of the antenna apparatus.

[0026] In other embodiments, both the first coupling structure 111 and the second coupling structure 210 may be in the form of coupling sheets, and non-contact coupling feeding may be implemented by the coupling sheets.

[0027] With continued reference to FIG. 3, in some embodiments, the first gap is filled with a first isolation medium 310, and the first isolation medium 310 isolates the plug-in portion from the inner wall of the cavity. By filling the first isolation medium 310, the plug-in portion can be firmly inserted into the cavity, and the plug-in portion is prevented from moving freely within the cavity, so as to ensure the position accuracy between the plug-in portion and the cavity, and improve the coupling accuracy to some extent. In addition, the first isolation medium 310 may isolate the plug-in portion from the inner wall of the cavity, so as to prevent contact or short-circuit between the plug-in portion and the cavity.

[0028] In the assembly process of the antenna apparatus, the plug-in portion may be directly inserted into the cavity by penetrating through the first isolation medium 310, so as to perform non-contact coupling feeding. In this way, on one hand, it is unnecessary to connect the feed network 200 with the radiation assembly 100 by means of soldering, thereby avoiding environment pollution caused by electroplating soldering, and reducing the cost. In addition, tin plating is not needed, so that the radiation efficiency is ensured, solder joints are reduced, the product performance is ensured, and the reliability of the intermodulation index is ensured. Furthermore, a snap-fit manner is used to implement coupling of electrical signals and improve the assembly efficiency.

[0029] Exemplarily, the first isolation medium 310 may be an annular medium that surrounds the periphery of the plug-in portion, thereby completely isolating 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 a non-metallic material such as resin and plastic.

[0030] Referring to FIG. 1 to FIG. 3, in some embodiments, the antenna apparatus may further include a reflection housing 400, the feed network 200 is arranged inside the reflection housing 400, and the radiation assembly 100 is arranged outside the reflection housing 400. The radiation assembly 100 may be fixed onto the reflection housing 400 to ensure the stability of the radiation assembly 100. Additionally, the reflection housing 400 may also reflect electromagnetic wave signals, thereby realizing a reflection function. In addition, the reflection housing 400 may also protect the feed network 200 therein, so as to prevent the feed network 200 from being affected by the outside. Exemplarily, the reflection housing 400 may be of a metal material.

[0031] Considering that the radiation assembly 100 is located outside the reflection housing 400, the feed network 200 is located inside the reflection housing 400, and coupling feeding may be implemented between the radiation assembly 100 and the feed network 200 without interference, a side wall of the reflection housing 400 may be provided with a clearance hole 410, and the first coupling structure 111 or the second coupling structure 210 penetrates through the clearance hole 410. Based on this, by means of the arrangement of the clearance hole 410, signals can be transmitted between the first coupling structure 111 and the second coupling structure 210 without influence by the reflection cavity.

[0032] Further, the radiation assembly 100 is connected to one of side walls of the reflection housing 400, and a surface, located outside the reflection housing 400, of the side wall is a reflection surface for reflecting electromagnetic wave signals, and the clearance hole 410 is arranged in the side wall. Exemplarily, in actual working conditions, the outer surface of the top wall of the reflection housing 400 may be a reflection surface, which can reflect electromagnetic wave signals emitted by the radiation assembly 100, so as to facilitate the propagation of electromagnetic wave signals.

[0033] Exemplarily, both ends in the Y direction of the reflection housing 400 may be provided with openings respectively, and during assembly, the feed network 200 may be assembled into the reflection housing 400 through either opening.

[0034] Referring to FIG. 1 to FIG. 5, in some embodiments, the radiation assembly 100 may include a feed core 110 provided with a first coupling structure 111, a supporting balun 120, and a radiation unit 130 connected to the supporting balun 120, wherein the feed core 110 is arranged in the supporting balun 120 and is electrically connected to the radiation unit 130, and the supporting balun 120 is connected to the reflection housing 400.

[0035] The supporting balun 120 may be provided with a channel, and the feed core 110 is arranged in the channel in a penetrating manner, the supporting balun 120 not only serves to secure the feed core 110, but also protects the feed core 110, so as 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 secure the radiation unit 130 so as to ensure the stability of the radiation unit 130.

[0036] In some embodiments, the radiation assembly 100 may include a plurality of radiation units 130, and the plurality of radiation units 130 may be all connected to the supporting balun 120, such that the plurality of radiation units 130 may be fixedly mounted by the common supporting balun 120.

[0037] Exemplarily, the feed core 110 and the radiation unit 130 may be both manufactured by metal die-casting.

[0038] In order to implement the connection between the radiation assembly 100 and the reflection housing 400, the supporting balun 120 may be provided with a first mounting hole 121, correspondingly, the side wall of the reflection housing 400 may be provided with a second mounting hole 420, when the supporting balun 120 is mounted to the reflection housing 400, the first mounting hole 121 is aligned with the second mounting hole 420, so as to facilitate arrangement of the fastener 500 in the first mounting hole 121 and the second mounting hole 420 in the penetrating manner, such that the supporting balun 120 and the reflection housing 400 may be securely fixed.

[0039] Exemplarily, the first mounting hole 121 may be a threaded hole, and the second mounting hole 420 may be a smooth hole, correspondingly, the fastener 500 may be a screw, a screw rod, a bolt, etc. The supporting balun 120 may be securely fixed to the side wall of the reflection housing 400 by the fastener 500, so as to ensure the stability of the supporting balun 120 on the reflection housing 400 and the stability of the radiation unit 130 connected to the supporting balun 120. Alternatively, the second mounting hole 420 may also be a threaded hole, the first mounting hole 121 may be a smooth hole, and the fastener 500 may be a screw, a screw rod, a bolt, etc. The fastener 500 penetrates through the supporting balun 120 and is threadedly connected to the second mounting hole 420, so as to implement fixed installation of the supporting balun 120.

[0040] In addition, the fastener 500 is fixed, so that the supporting balun 120 can be removed from the reflection housing 400, thereby providing convenience for maintenance.

[0041] Referring to FIG. 7 to FIG. 9, in other embodiments, the antenna apparatus may further include a mounting member 600, the mounting member 600 is connected between the supporting balun 120 and the reflection housing 400, the use of the mounting member 600 can ensure a secure and stable installation of the supporting balun 120 and close fit between the supporting balun 120 and the reflection housing 400, while facilitate the disassembly of the supporting balun 120.

[0042] Furthermore, the mounting member 600 may include a first snap-fit structure 610 and a second snap-fit structure 620, correspondingly, the supporting balun 120 may be provided with a third snap-fit structure 122, and the third snap-fit structure 122 is engaged with the first snap-fit structure 610. Based on this, a secure installation between the supporting balun 120 and the radiation assembly 100 can be implemented, and snap-fitting can also facilitate disassembly of the supporting balun 120 from the radiation assembly 100, thereby facilitating maintenance of the antenna apparatus.

[0043] Exemplarily, one of the first snap-fit structure 610 and the third snap-fit structure 122 may be a snap protrusion, a snap head, etc., and the other of the same may be a snap groove, a snap hole, etc., so as to ensure the fastness between the supporting balun 120 and the radiation assembly 100 when snap-fitting, and facilitate separation of the first snap-fit structure 610 from the third snap-fit structure 122, so as to facilitate disassembly and assembly of the supporting balun 120.

[0044] In addition, the reflection housing 400 may include a fourth snap-fit structure 430, and the fourth snap-fit structure 430 is engaged with the second snap-fit structure 620. Based on this, a secure installation between the supporting balun 120 and the reflection housing 400 can be implemented, and the snap-fitting can also facilitate disassembly of the supporting balun 120 from the reflection housing 400, thereby facilitating maintenance of the antenna apparatus.

[0045] Exemplarily, one of the second snap-fit structure 620 and the fourth snap-fit structure 430 may be a snap protrusion, a snap head, etc., and the other of the same may be a snap groove, a snap hole, etc., so as to ensure the fastness between the supporting balun 120 and the reflection housing 400 when snap-fitting, and facilitate separation of the second snap-fit structure 620 from the fourth snap-fit structure 430, so as to facilitate disassembly and assembly of the supporting balun 120.

[0046] In order to implement coupling and grounding of the radiation unit 130, the radiation assembly 100 and the reflection cavity may be assembled in a plug-in assembly manner.

[0047] In some embodiments, the supporting balun 120 may be provided with a third coupling structure, and the side wall of the reflection housing 400 may be provided with a fourth coupling structure, by engaging the third coupling structure with the fourth coupling structure, coupling between the supporting balun 120 and the reflection housing 400 may be implemented, and coupling and grounding between the supporting balun 120 and the reflection housing 400 can be realized.

[0048] One of the third coupling structure and the fourth coupling structure is a boss 123, and the other of the same is a recess 440, the boss 123 is arranged in the recess 440, and there is a second gap between an outer wall of the boss 123 and an inner wall of the recess 440. The second 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., it may also be other values, which is not specifically limited here.

[0049] Exemplarily, the supporting balun 120 may be provided with a grounding coupling boss, and the reflection housing 400 may be provided with a grounding coupling recess, coupling and grounding between the supporting balun 120 and the reflection housing 400 can be implemented by plug-in engagement of the grounding coupling boss and the grounding coupling recess. In addition, the supporting balun 120 may be provided with one or more ground coupling bosses, correspondingly, the reflection housing 400 may be provided with one or more ground coupling recesses, so as to ensure stability of coupling and grounding.

[0050] Based on the above arrangement, by coupling assembly between the boss 123 and the recess 440 as well as a second gap formed therebetween, effective coupling and grounding of the radiation balun can be ensured.

[0051] Referring to FIG. 9, in some embodiments, the second gap is filled with a second isolation medium 320, and the second isolation medium 320 isolates an outer wall of the boss 123 from an inner wall of the recess 440. By filling the second isolation medium 320, the boss 123 can be firmly inserted into the recess 440, and the boss 123 is prevented from moving freely within the recess 440, so as to ensure the position accuracy between the boss 123 and the recess 440, and improve the coupling accuracy to some extent. In addition, the second isolation medium 320 can isolate the boss 123 from the inner wall of the recess 440, so as to prevent contact or short-circuit between the boss 123 and the recess 440.

[0052] Exemplarily, the second isolation medium 320 may be a dielectric sheet, the thickness of the dielectric sheet is consistent with the spacing of the second gap, that is, the thickness of the dielectric sheet may range from 0.1 mm to 0.5 mm, so as to ensure sealing and filling of the second gap. In addition, the second isolation medium 320 may be made of a non-metallic material such as resin, plastic, etc.

[0053] In some embodiments, a dielectric layer may be provided between the feed network 200 and an inner wall of the reflection cavity, and the dielectric layer forms a non-metallic support body, so as to support the feed network 200 by the non-metallic support body and isolate the feed network 200 from the inner wall of the reflection cavity. Exemplarily, the dielectric layer may be made of a non-metallic material such as resin, plastic, etc.

[0054] Referring to FIG. 4 and FIG. 5, in order to implement secure installation of the feed network 200, the antenna apparatus may further include a fixing bracket 700, the fixing bracket 700 is arranged in the reflection housing 400, and the feed network 200 is arranged in the fixing bracket 700. Based on this, the secure installation of the feed network 200 may be implemented by the fixing bracket 700, and the feed network 200 is suspended in the reflection housing 400, so as to ensure the stability of the feed network 200 inside the reflection housing 400. The fixing bracket 700 may be made of an insulating material so as to ensure the insulation of the feed network 200 from the reflection housing 400. Exemplarily, the fixing bracket 700 may be made of a plastic material. It should be noted here that the fixing bracket 700 may serve as a dielectric layer, which not only supports and secures the feed network 200, but also isolates the feed network 200 from an inner wall of the reflection housing 400.

[0055] In some embodiments, the fixing bracket 700 may include an upper bracket and a lower bracket, during assembly, the upper bracket is located above the feed network 200, and the lower bracket is located below the feed network 200. In this way, the feed network 200 is wrapped between the upper bracket and the lower bracket, so as to protect the feed network 200 and isolate the upper and lower parts of the feed network 200 from the reflection housing 400.

[0056] In order to enable the feed network 200 and the fixing bracket 700 to be properly assembled into the reflection housing 400, the total thickness of the feed network 200 and the fixing bracket 700 in the Z direction has to be less than the inner diameter height in the Z direction of an opening of the reflection housing 400; additionally, the width of the feed network 200 and the fixing bracket 700 in the X direction has to be less than the inner diameter height in the X direction of an opening of the reflection housing 400.

[0057] In order to improve efficiency of signal transmission, the antenna apparatus may include a plurality of radiation assemblies 100, correspondingly, the feed network 200 may include a plurality of second coupling structures 210, wherein the first coupling structures 111 of the plurality of radiation assemblies 100 are engaged with the plurality of second coupling structures 210 correspondingly and respectively. With this arrangement, a signal of the feed network 200 may be transmitted to the radiation assembly 100 by a plurality of wirelessly coupled first coupling structures 111 and second coupling structures 210 pairs, and radiated outwards by the radiation assembly 100, thereby improving the efficiency of signal transmission.

[0058] In some cases, the feed network 200 may be provided with a plurality of output ends, correspondingly, the antenna apparatus may be provided with a plurality of radiation assemblies 100, each output end may be provided with a plug-in portion, and the plurality of plug-in portions are respectively inserted into the respective cavities of the plurality of radiation assemblies 100 so as to implement non-contact coupling feeding, which may replace traditional feeding methods by PCB board or coaxial cable soldering, thereby reducing solder joints on links, simplifying the circuit structure, improving intermodulation, reducing losses, and improving efficiency of production and processing.

[0059] In another embodiment, the antenna apparatus may include a supporting balun 120 mounted to a reflection housing 400, a radiation assembly 100 mounted to the supporting balun 120, a feed core 110 arranged in the supporting balun 120 and electrically connected to the radiation assembly 100, and a feed network 200 arranged in the reflection housing 400.

[0060] A coupling tube 1111 is arranged at an end of the feed core 110, the coupling tube 1111 and the feed core 110 may be an integrally formed structure, which may be integrally formed by casting, forging, stamping or die-casting; a feed pin 211 is arranged at an output end of the feed network 200, and the feed pin 211 is at least partially inserted into the coupling tube 1111 for implementing non-contact coupling feeding.

[0061] Based on the above-mentioned antenna apparatus, the embodiments of the present application further provide a communication device, and the disclosed communication device includes the above-mentioned antenna apparatus.

[0062] In summary, the antenna apparatus and the communication device including the antenna apparatus provided in the embodiments of the present application can reduce solder joints between the radiation assembly 100 and the feed network 200, thereby ensuring the antenna intermodulation index and stability.

[0063] The embodiments of the application are described above in conjunction with the accompanying drawings, but the application is not limited to the above-mentioned particular embodiments that are merely illustrative rather than limiting, a wide variety of forms can be made by a person skilled in the art under teachings of the application without departing from the spirit and scope of the application, and such forms all fall within the scope of the claims.

Examples

Embodiment Construction

[0009]Technical solutions in embodiments of the application will be described clearly and thoroughly below with reference to the accompanying drawings in embodiments of the application. Apparently, the embodiments described are part of the embodiments of the application rather than all of the embodiments. All other embodiments obtained by a person skilled in the art without creative work based on embodiments in the application should fall within the scope of the application.

[0010]The terms "first", "second", and the like in the description and in the claims of the application are used to distinguish between similar objects rather than describing a specific order or a sequence. It is to be understood that data used in such a way may be interchanged where appropriate, whereby embodiments of the application can be implemented in an order other than those illustrated or described herein, the objects distinguished by "first", "second", etc., are generally of one type, and the number of o...

Claims

1. An antenna apparatus, comprising a radiation assembly (100) and a feed network (200); wherein the radiation assembly (100) comprises a first coupling structure (111); the feed network (200) comprises a second coupling structure (210); and one of the first coupling structure (111) and the second coupling structure (210) is provided with a cavity, the other one of the same is provided with a plug-in portion, at least part of the plug-in portion is arranged in the cavity, and there is a first gap between the plug-in portion and an inner wall of the cavity.

2. The antenna apparatus according to claim 1, wherein the first coupling structure (111) comprises a coupling tube (1111), and a tube cavity of the coupling tube (1111) forms the cavity; the second coupling structure (210) comprises a feed pin (211), and the feed pin (211) is connected to an output end of the feed network (200); and an end, away from the output end of the feed network (200), of the feed pin (211) is inserted into the coupling tube (1111), and there is the first gap between an outer wall of the feed pin (211) and a tube wall of the coupling tube (1111).

3. The antenna apparatus according to claim 1, wherein the first gap is filled with a first isolation medium (310), and the first isolation medium (310) isolates the plug-in portion from the inner wall of the cavity.

4. The antenna apparatus according to claim 1, wherein the antenna apparatus further comprises a reflection housing (400), the feed network (200) is arranged inside the reflection housing (400), and the radiation assembly (100) is arranged outside the reflection housing (400); a side wall of the reflection housing (400) is provided with a clearance hole (410), and the first coupling structure (111) or the second coupling structure (210) penetrates through the clearance hole (410).

5. The antenna apparatus according to claim 4, wherein the radiation assembly (100) is connected to one side wall of the reflection housing (400), and a surface, located outside the reflection housing (400), of the side wall is a reflection surface for reflecting electromagnetic wave signals; and the clearance hole (410) is arranged in the side wall.

6. The antenna apparatus according to claim 4, wherein the radiation assembly (100) comprises a feed core (110) provided with the first coupling structure (111), a supporting balun (120), and a radiation unit (130) connected to the supporting balun (120); the feed core (110) is arranged in the supporting balun (120) and is electrically connected to the radiation unit (130); and the supporting balun (120) is connected to the reflection housing (400).

7. The antenna apparatus according to claim 6, wherein the supporting balun (120) is provided with a first mounting hole (121), and a side wall of the reflection 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 a fastener (500) is arranged between the first and second mounting holes in a penetrating manner.

8. The antenna apparatus according to claim 6, wherein the antenna apparatus further comprises a mounting member (600), and the mounting member (600) comprises a first snap-fit structure (610) and a second snap-fit structure (620); the supporting balun (120) is provided with a third snap-fit structure (122), and the third snap-fit structure (122) is engaged with the first snap-fit structure (610); and the reflection housing (400) is provided with a fourth snap-fit structure (430), and the fourth snap-fit structure (430) is engaged with the second snap-fit structure (620).

9. The antenna apparatus according to claim 6 or 8, wherein the supporting balun (120) is provided with a third coupling structure, and a side wall of the reflection 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 of the same is a recess (440); the boss (123) is arranged in the recess (440), and there is a second gap between an outer wall of the boss (123) and an inner wall of the recess (440).

10. The antenna apparatus according to claim 9, wherein the second gap is filled with a second isolation medium (320), and the second isolation medium (320) isolates the outer wall of the boss (123) from the inner wall of the recess (440).

11. The antenna apparatus according to claim 4, wherein the antenna apparatus further comprises a fixing bracket (700), and the fixing bracket (700) is arranged in the reflection housing (400); and the feed network (200) is arranged in the fixing bracket (700).

12. The antenna apparatus according to claim 1, wherein the antenna apparatus comprises a plurality of the radiation assemblies (100), and the feed network (200) comprises a plurality of the second coupling structures (210); and the first coupling structures (111) of the radiation assemblies (100) are engaged with the second coupling structures (210) correspondingly and respectively.

13. A communication device, comprising the antenna apparatus according to any one of claims 1 to 12.

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