Antenna system and method of assembly

Abstract

The application relates to an antenna system and an assembling method. The antenna system comprises a reflecting plate, a phase shifter cavity, at least one radiation unit and a transmission network arranged in the phase shifter cavity; the radiation unit comprises a radiation surface and a feed balun, the feed balun comprises a feed and a balun ground electrically connected with the radiation surface, the feed is electrically connected with the transmission network, one feed corresponds to one balun ground, the feed itself forms a microstrip transmission line, and the balun ground comprises two first balun grounds and second balun grounds arranged at intervals; wherein the first balun ground and the second balun ground in each balun ground are integrally formed with the phase shifter cavity; the projections of the two feeds on the outer wall of the first packaging wall are parallel, and are on the inner sides of the two balun grounds. In the antenna system, the feed and the transmission network are directly electrically connected, have few welding points, have small loss, and have good intermodulation stability.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to an antenna system and assembly method. Background Technology

[0002] In antenna systems, an electrical connection is required between the radiating element and the phase shifter element to achieve signal transmission while also meeting grounding requirements. Currently, in related antenna systems, the radiating element and phase shifter element are electrically connected via cables. Specifically, one end of the cable core is connected to the feed plate of the radiating element, and the other end is connected to the signal transmission layer of the phase shifter; one end of the cable outer conductor is soldered to the feed balun, and the other end is soldered to the grounding layer of the phase shifter. However, this approach suffers from high losses, numerous solder joints, and poor intermodulation stability. Summary of the Invention

[0003] Therefore, it is necessary to provide an antenna system and assembly method that allows direct electrical connection between the feeder and the transmission network, has fewer solder joints, lower losses, and better intermodulation stability.

[0004] The first aspect of this application provides an antenna system, including a reflector, at least one radiating element, a phase shifter cavity, and a transmission network disposed within the phase shifter cavity;

[0005] The radiating unit is located on one side of the reflector, and the phase shifter cavity is located on the side of the reflector away from the radiating unit; the phase shifter cavity is fixedly connected to the reflector.

[0006] The radiating element includes a radiating surface and a feed balun, and the feed balun includes a balun ground and a feed element;

[0007] The power supply unit is electrically connected to the transmission network;

[0008] One power supply unit corresponds to one balun ground, and the balun ground includes two spaced-apart first balun grounds and second balun grounds;

[0009] Both the first and second baluns are integrally pultruded components with the phase shifter cavity structure.

[0010] In some embodiments, the phase shifter cavity has a plurality of encapsulation walls defining a cavity in which a transmission network is disposed.

[0011] In some embodiments, the encapsulation wall includes a first encapsulation wall, and a first balun and a second balun are both disposed on the outer wall of the first encapsulation wall.

[0012] In some embodiments, the power supply includes a first power supply and a second power supply, wherein the first power supply is disposed in a first balun and the second power supply is disposed in a second balun.

[0013] In some embodiments, both the first balun and the second balun are formed as cuboids extending away from the first encapsulation wall.

[0014] In some embodiments, the radiating element is a dual-polarized radiating element; there are two baluns and two feeders, the projections of the two feeders on the outer wall of the first encapsulation wall are parallel, and they are inside the two baluns.

[0015] In some embodiments, the power supply device is configured as a printed circuit board, and the power supply device includes a conductor layer, a dielectric layer and a ground layer, which are combined to form a microstrip transmission line.

[0016] The power supply unit is located in the Balun ground, and the grounding layer is coupled to the Balun ground; the grounding layer is also electrically connected to the radiating surface.

[0017] In some embodiments, the conductor layer includes a coupling segment and a feeding segment, the coupling segment being coupled to a corresponding radiating metal layer on the radiating surface; the feeding segment being electrically connected to a corresponding transmission network.

[0018] In some embodiments, the encapsulation wall includes a second encapsulation wall and a third encapsulation wall;

[0019] On the second encapsulation wall, a first welding operation hole is provided corresponding to the electrical connection between each power supply segment and the corresponding transmission network.

[0020] On the third encapsulation wall, a second welding operation hole is provided at the electrical connection point between each power supply segment and the corresponding transmission network.

[0021] In some embodiments, the power supply unit is mounted on the corresponding balun ground via an insulating element.

[0022] In some embodiments, an insulator corresponds to a balun ground; the insulator includes a first insulator and a second insulator, a first power supply is mounted on the corresponding first balun ground via the first insulator, and a second power supply is mounted on the corresponding second balun ground via the second insulator.

[0023] In some embodiments, the insulating element is a plastic rivet, and the power supply element is mounted to the corresponding balun ground by means of the plastic rivet.

[0024] In some embodiments, the inner wall of the encapsulation wall is provided with slots for fixing the substrate of the transmission network. There are two slots arranged opposite to each other and along the first direction of the phase shifter cavity.

[0025] In some embodiments, at least one end of the two end faces of the phase shifter cavity in the first direction is not provided with an encapsulation wall to leave an opening for the transmission network to connect to an external control element.

[0026] In some embodiments, the reflector has an opening; the power supply balun passes through the reflector via the opening.

[0027] In some embodiments, the number of radiating elements is multiple.

[0028] The second aspect of this application provides an assembly method for an antenna system, used to assemble an antenna system as described in any of the above technical solutions. The assembly method includes the following steps:

[0029] Insert the transmission network to be assembled into the phase shifter cavity, fix the feeder of the feeder balun to the balun ground integrally formed with the phase shifter cavity through the insulating part, and electrically connect the feeder to the transmission network. After assembly, a phase shifter balun assembly is formed.

[0030] The power supply balun of the phase shifter balun assembly passes through the opening of the reflector plate, and the phase shifter cavity is fixedly connected to the reflector plate.

[0031] The ground plane of the feed element is electrically connected to the radiating surface to form an antenna system.

[0032] The beneficial effects of the above antenna system and assembly method are as follows:

[0033] The signal connection between the radiating element and the transmission network is achieved by directly connecting the feed element to the transmission network. The first and second balun grounds in each balun ground are integrally molded with the phase shifter cavity, achieving a common ground for the balun grounds and the phase shifter cavity. This eliminates the need for welding between the balun grounds and the phase shifter cavity, reducing the number of solder joints and eliminating the need for electroplating. The structure is simple, with low loss, and also results in better intermodulation stability of the antenna system. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the antenna system provided in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the connection structure between various components in the antenna system provided in the embodiments of this application;

[0036] Figure 3 for Figure 2 The front view;

[0037] Figure 4 for Figure 2 Exploded structural diagram;

[0038] Figure 5 This is a schematic diagram of the connection structure between components in an antenna system provided in another embodiment of this application;

[0039] Figure 6 for Figure 5 The front view;

[0040] Figure 7 for Figure 5Exploded structural diagram;

[0041] Figure 8 A schematic diagram of the phase shifter balun assembly structure in an antenna system provided in another embodiment of this application;

[0042] Figure 9 This is an assembly diagram of an antenna system provided in another embodiment of this application;

[0043] Figure 10 A flowchart illustrating an antenna system assembly method according to another embodiment of this application.

[0044] Explanation of icon numbers:

[0045] 10. Antenna system;

[0046] 100. Reflector; 110. Opening;

[0047] 200, Radiation element; 210, Radiation surface; 220, Feed balun; 221, Balun ground; 221a, First balun ground; 221b, Second balun ground; 222, Feeding component; 222a, Conductor layer; 222b, Dielectric layer; 222c, Ground layer; 222a1, Coupling section; 222a2, Feeding section; 2221, First feeding component; 2222, Second feeding component; 230, Insulating component; 231, First insulating component; 232, Second insulating component; 233, Plastic rivet;

[0048] 300, Phase shifter cavity; 310, Encapsulation wall; 311, First encapsulation wall; 312, Second encapsulation wall; 312a, First welding operation hole; 313, Third encapsulation wall; 313a, Second welding operation hole; 320, Cavity; 330, Slot; 340, End face;

[0049] 400. Transmission network;

[0050] 500. Phase shifter balun assembly;

[0051] F, First direction. Detailed Implementation

[0052] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0058] The antenna system of this application embodiment is described below with reference to the accompanying drawings.

[0059] Figure 1 This is a schematic diagram of the antenna system provided in an embodiment of this application; Figure 2 This is a schematic diagram of the connection structure between various components in the antenna system provided in the embodiments of this application; Figure 3 for Figure 2 The front view; Figure 4 for Figure 2 Exploded structural diagram; Figure 5 This is a schematic diagram of the connection structure between components in an antenna system provided in another embodiment of this application; Figure 6 for Figure 5 The front view; Figure 7 for Figure 5 The structure explodes.

[0060] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The first aspect of this application provides an antenna system 10, including a reflector 100, at least one radiating element 200, a phase shifter cavity 300, and a transmission network 400 disposed within the phase shifter cavity 300.

[0061] The radiating unit 200 is disposed on one side of the reflector 100, and the phase shifter cavity 300 is located on the side of the reflector 100 away from the radiating unit 200; the phase shifter cavity 300 is fixedly connected to the reflector 100; the radiating unit 200 includes a radiating surface 210 and a feeding balun 220, the feeding balun 220 includes a balun ground 221 and a feeding element 222; the feeding element 222 is electrically connected to the transmission network 400; one feeding element 222 corresponds to one balun ground 221, the balun ground 221 includes two spaced-apart first balun grounds 221a and second balun grounds 221b; the feeding element 222 includes a first feeding element 2221 and a second feeding element 2222, the first feeding element 2221 is disposed on the first balun ground 221a, and the second feeding element 2222 is disposed on the second balun ground 221b. Among them, the first balun 221a and the second balun 221b in each balun 221 are integrally formed with the phase shifter cavity 300.

[0062] The radiating element 200 is electrically connected to the transmission network 400 via the feed element 222, thereby achieving signal connection between the transmission network 400 and the radiating element 200. The first balun 221a and the second balun 221b in each balun 221 are integrally formed with the phase shifter cavity 300, achieving a common ground for each balun 221 and the phase shifter cavity 300. The balun 221 and the phase shifter cavity 300 do not require welding, thus reducing the number of solder joints in the antenna system 10. Furthermore, it eliminates the need for electroplating, resulting in a simple structure, low loss, and better intermodulation stability of the antenna system 10.

[0063] Both the first balun 221a and the second balun 221b are integrally formed with the phase shifter cavity 300, meaning that the first balun 221a and the second balun 221b and the phase shifter cavity 300 are integrally formed without the need for external components to connect them. Integral forming can be achieved, for example, through processes such as die casting or extrusion.

[0064] In specific implementation, the electrical connection between the conductor layer 222a of the feed element 222 and the radiating surface 210 can be, for example, a coupling connection. Similarly, the electrical connection between the ground layer 222c of the feed element 222 and the radiating surface 210 can be a coupling connection or a direct connection, such as a soldered connection. In this embodiment, a soldered connection between the ground layer 222c of the feed element 222 and the radiating surface 210 is used as an example. In this case, the phase shifter cavity 300 can be installed on the reflector 100 before the radiating surface 210 is soldered to the feed element 222, simplifying the assembly of the antenna system 10.

[0065] Furthermore, in the embodiments of this application, the radiating element 200 can be a dual-polarized radiating element or a single-polarized radiating element. In the following example, the antenna system 10 will be described in detail with the radiating element 200 being a dual-polarized radiating element and the number of feed elements 222 being two.

[0066] The electrical connection between the power supply component 222 and the transmission network 400 is combined with... Figure 2 , Figure 3 , Figure 4 For example, a portion of the power supply component 222 may penetrate the encapsulation wall 310 of the phase shifter cavity 300 and extend into the phase shifter cavity 300 to be welded to the corresponding transmission network 400. Correspondingly, welding operation holes need to be opened at the junction of the encapsulation wall 310 of the phase shifter cavity 300 and other adjacent encapsulation walls to facilitate the welding operation.

[0067] In this embodiment, the number of radiating units 200 is one or more. When the number of radiating units 200 is one, taking a dual-polarized radiating unit as an example, the number of transmission networks 400 is two. Parts of the structures of the two feed elements 222 penetrate the encapsulation wall 310 of the phase shifter cavity 300 and enter the phase shifter cavity 300, respectively, and are electrically connected to one transmission network 400. When the number of radiating units 200 is one (not shown), taking a single-polarized radiating unit as an example, the number of transmission networks 400 is one. Parts of the structure of one feed element 222 penetrate the encapsulation wall 310 of the phase shifter cavity 300 and enter the phase shifter cavity 300, thereby being electrically connected to that one transmission network 400.

[0068] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 When there are multiple radiating elements 200, the multiple radiating elements 200 are arranged at intervals along the first direction F. The number of transmission networks 400 is the same as the number of feed elements 222 included in one radiating element 200. For example, when the radiating element 200 is a dual-polarized radiating element, the number of feed elements 222 and transmission networks 400 is two each. In this case, each transmission network 400 has multiple output terminals, and the number of output terminals is the same as the number of radiating elements 200. Thus, in multiple radiating elements 200, feed elements 222 with the same polarization direction are all connected to different output terminals of the same transmission network 400, for example, referring to... Figure 1 For the five feeders 222 with a polarization direction of +45° among the five radiating elements 200, they can be connected to the five output terminals of the transmission network 400 on the left side of the figure. For the five feeders 222 with a polarization direction of -45° among the five radiating elements 200, they can be connected to the five output terminals of the transmission network 400 on the right side of the figure. Of course, Figure 1 The explanation is based on the example of 5 radiation units 200. The same applies to other cases where the number of radiation units 200 is different, and will not be repeated here.

[0069] When the radiating unit 200 is a single-polarization radiating unit, the number of feed elements 222 and transmission networks 400 is one (not shown). In this case, each transmission network 400 has multiple output terminals, the number of which is the same as the number of radiating units 200. Thus, the feed elements 222 in each radiating unit 200 are connected to different output terminals of the single transmission network 400. For example, for the five feed elements 222 in five radiating units 200, they can be connected to the five output terminals on the transmission network 400. Of course, the same applies to other cases where the number of radiating units 200 is different, and will not be described in detail here.

[0070] In this embodiment, reference continues to be made to... Figure 1 , Figure 2 , Figure 3 , Figure 4 The phase shifter cavity 300 has a plurality of encapsulation walls 310 and a cavity 320 defined by the plurality of encapsulation walls 310.

[0071] In this embodiment of the application, the encapsulation wall 310 includes a first encapsulation wall 311, a first balun 221a is disposed on the outer wall of the first encapsulation wall 311, and a second balun 221b is also disposed on the outer wall of the first encapsulation wall 311.

[0072] The radiating unit 200 is a dual-polarized radiating unit; there are two baluns 221 and two feeders 222. The projections of the two feeders 222 on the outer wall of the first encapsulation wall 311 are parallel and they are inside the two baluns 221.

[0073] The first power supply element 2221 is located on the corresponding first balun ground 221a and is coupled to the first balun ground 221a. The second power supply element 2222 is located on the corresponding second balun ground 221b and is coupled to the second balun ground 221b.

[0074] In a specific implementation, a welding operation hole is provided on the encapsulation wall 310 at the position corresponding to the power supply component 222. The welding operation hole is located at the junction of the first encapsulation wall 311 and other adjacent encapsulation walls. The power supply component 222 can pass through the welding operation hole and be electrically connected to the output terminal of the corresponding transmission network 400.

[0075] In this embodiment, both the first balun 221a and the second balun 221b are formed as cuboids extending away from the first encapsulation wall 311. This arrangement facilitates the integral forming of the first balun 221a, the second balun 221b, and the phase shifter cavity 300.

[0076] In this embodiment, the power supply component 222 is configured as a printed circuit board. The power supply component 222 includes a conductor layer 222a, a dielectric layer 222b, and a ground layer 222c, which together form a microstrip transmission line. The power supply component 222 is located on a balun ground 221, and the ground layer 222c is coupled to the balun ground 221; the ground layer 222c is also electrically connected to the radiating surface 210. The conductor layer 222a includes a coupling section 222a1 and a power supply section 222a2. The coupling section 222a1 is coupled to a corresponding radiating metal layer on the radiating surface 210; the power supply section 222a2 is electrically connected to the corresponding transmission network 400.

[0077] Furthermore, combined Figure 4 The conductor layer 222a includes a coupling segment 222a1, which is coupled to the corresponding radiating metal layer on the radiating surface 210.

[0078] One end of the power supply section 222a2 is connected to the coupling section 222a1, and the other end of the power supply section 222a2 is electrically connected to the corresponding transmission network 400.

[0079] This configuration ensures that the coupling segment 222a1 has sufficient coupling area when coupled to the radiating element 200. In practice, the coupling segment 222a1 can be arranged parallel to the radiating surface 210.

[0080] In this embodiment, the encapsulation wall 310 includes a second encapsulation wall 312 and a third encapsulation wall 313. At the junction of the second encapsulation wall 312 and other adjacent encapsulation walls, a first soldering operation hole 312a is provided corresponding to the electrical connection between each power supply segment 222a2 and the corresponding transmission network 400. At the junction of the third encapsulation wall 313 and other adjacent encapsulation walls, a second soldering operation hole 313a is provided corresponding to the electrical connection between each power supply segment 222a2 and the corresponding transmission network 400.

[0081] This configuration facilitates the connection between the power supply component 222 and the transmission network 400, and allows for convenient adjustment and maintenance of this connection. The location of the welding operation hole on the encapsulation wall 310 can be flexibly selected by those skilled in the art according to operational needs. Furthermore, the shape and size of this welding operation hole should also be flexibly designed by those skilled in the art according to operational requirements.

[0082] In this embodiment, the power supply component 222 is mounted on the corresponding balun ground 221 via an insulating component 230. One insulating component 230 corresponds to one balun ground 221.

[0083] Furthermore, the first power supply component 2221 is mounted on the corresponding first balun ground 221a via the first insulating component 231, and the second power supply component 2222 is mounted on the corresponding second balun ground 221b via the second insulating component 232.

[0084] In the embodiments of this application, reference is made to Figure 5 , Figure 6 , Figure 7 The insulating component 230 here can be, for example, a plastic rivet 233.

[0085] This configuration allows the first power supply component 2221 to be mechanically positioned on the first balun 221a, and the second power supply component 2222 to be mechanically positioned on the second balun 221b.

[0086] In this embodiment of the application, the inner wall of the encapsulation wall 310 is provided with a slot 330 for fixing the substrate of the transmission network 400. There are two slots 330 arranged opposite to each other and along the first direction F of the phase shifter cavity 300.

[0087] Those skilled in the art can, according to operational needs, leave at least one of the two end faces 340 of the phase shifter cavity 300 in the first direction F without an encapsulation wall to allow for an opening, i.e., one of the two end faces in the first direction F is left without an encapsulation wall to allow the transmission network 400 to connect to an external control element. For example, an external driving force actuation element can be provided at the open end of the phase shifter cavity 300 to manipulate the movement of the dielectric plate of the transmission network 400 to achieve the purpose of phase shifting; or an adjusting screw can be provided to tune the filter, etc., to make relevant adjustments to the transmission network 400.

[0088] In this embodiment, the reflector 100 has an opening 110 through which the power supply balun 220 passes. The power supply balun 220 can enter or exit the corresponding reflector 100 through the corresponding opening 110, facilitating assembly or disassembly.

[0089] Furthermore, there may also be a gap between the edge of the power supply balun 220 and the opening 110.

[0090] In this embodiment of the application, there are multiple radiation units 200, and the multiple radiation units 200 are arranged at intervals along the second direction F.

[0091] In multiple radiating units 200, the feeders 222 with the same polarization direction are all connected to different outputs of the same transmission network 400; the number of transmission networks 400 is the same as the number of feeders 222 included in one radiating unit 200.

[0092] Embodiments of this application provide an assembly method for assembling an antenna system 10 as described in any of the above embodiments, referring to... Figure 8 , Figure 9 , Figure 10 As shown, it includes the following steps:

[0093] S101, insert the transmission network 400 to be assembled into the phase shifter cavity 300, fix the feeder 222 of the feeder balun 220 to the balun ground 221 integrally formed with the phase shifter cavity 300 through the insulating part 230, and electrically connect the feeder 222 to the transmission network 400. After assembly, a phase shifter balun assembly 500 is formed.

[0094] S102, the power supply balun 220 of the phase shifter balun assembly 500 is passed through the reflector 100 via the opening 110 on the reflector 100, and the phase shifter cavity 300 is fixedly connected to the reflector 100.

[0095] S103, the ground layer 222c of the feed element 222 is electrically connected to the radiating surface 210, and the antenna system 10 is formed after assembly.

[0096] It should be noted that in step S101, the process of electrically connecting the power supply component 222 to the transmission network 400 and assembling it to form a phase shifter balun assembly 500 can be completed in the pre-assembly process; in step S102, the fixed connection between the phase shifter cavity 300 and the reflector 100 can be completed directly on the final assembly line, resulting in high assembly efficiency; in step S103, the grounding layer 222c of the power supply component 222 is electrically connected to the radiating surface 210, and all electrical connections can be welded using automated welding equipment, resulting in good welding consistency.

[0097] In the embodiments of this application, reference is made to Figure 1 , Figure 2 , Figure 3 , Figure 4 When the radiating unit 200 is a dual-polarized radiating unit, there are two baluns 221 and two feeders 222. Each of the two feeders 222 corresponds to one balun 221. The projections of the two feeders 222 on the outer wall of the first encapsulation wall 311 are parallel, and they are located inside the two baluns 221. This arrangement can effectively shield the external radiation of the feeders 222.

[0098] This configuration creates an open radiating element 200, facilitating the assembly and connection of the first encapsulation wall 311 with the reflector 100. Specifically, by creating an opening 110 in the reflector 100, first mounting the feed element 222 on the balun ground 221, then passing the feed balun 220 through the opening 110, and finally connecting the radiating surface 210 to the feed balun 220, the antenna system 10 can be assembled. The assembly is simple and consistent.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An antenna system, characterized in that, It includes a reflector, at least one radiation unit, a phase shifter cavity, and a transmission network disposed within the phase shifter cavity; The radiation unit is disposed on one side of the reflector, and the phase shifter cavity is located on the side of the reflector away from the radiation unit; The phase shifter cavity is fixedly connected to the reflector plate; The radiating element includes a radiating surface and a feeding balun, wherein the feeding balun includes a balun ground and a feeding element; The power supply component is electrically connected to the transmission network; One of the power supply components corresponds to one of the balun grounds, and the balun grounds include two spaced-apart first balun grounds and second balun grounds; Both the first and second baluns are integrally formed with the phase shifter cavity.

2. The antenna system according to claim 1, characterized in that, The phase shifter cavity has multiple encapsulation walls that define a cavity, and the transmission network is located within the cavity.

3. The antenna system according to claim 2, characterized in that, The encapsulation wall includes a first encapsulation wall, and the first balun and the second balun are both disposed on the outer wall of the first encapsulation wall.

4. The antenna system according to claim 3, characterized in that, The power supply unit includes a first power supply unit and a second power supply unit, wherein the first power supply unit is located in the first balun and the second power supply unit is located in the second balun.

5. The antenna system according to claim 4, characterized in that, Both the first and second baluns are formed as cuboids extending away from the first encapsulation wall.

6. The antenna system according to claim 4, characterized in that, The radiation unit is a dual-polarized radiation unit; there are two baluns and two feeders, and the projections of the two feeders on the outer wall of the first encapsulation wall are parallel and located inside the two baluns.

7. The antenna system according to claim 2, characterized in that, The power supply component is configured as a printed circuit board, and the power supply component includes a conductor layer, a dielectric layer and a ground layer. The conductor layer, the dielectric layer and the ground layer are combined to form a microstrip transmission line. The power supply component is located in the balun ground, and the grounding layer is coupled to the balun ground; the grounding layer is also electrically connected to the radiating surface.

8. The antenna system according to claim 7, characterized in that, The conductor layer includes a coupling section and a feeding section, and the coupling section is coupled to the corresponding radiating metal layer on the radiating surface; The power supply segment is electrically connected to the corresponding transmission network.

9. The antenna system according to claim 8, characterized in that, The plurality of encapsulation walls further include a second encapsulation wall and a third encapsulation wall; On the second encapsulation wall, a first welding operation hole is provided corresponding to the electrical connection between each of the power supply segments and the corresponding transmission network; On the third encapsulation wall, a second welding operation hole is provided corresponding to the electrical connection between each power supply segment and the corresponding transmission network.

10. The antenna system according to claim 4, characterized in that, The power supply unit is mounted on the corresponding baron ground via an insulating component.

11. The antenna system according to claim 10, characterized in that, One of the insulating elements corresponds to one of the baluns; The insulating component includes a first insulating component and a second insulating component. The first power supply component is mounted on the corresponding first balun ground via the first insulating component, and the second power supply component is mounted on the corresponding second balun ground via the second insulating component.

12. The antenna system according to claim 10, characterized in that, The insulating component is a plastic rivet, and the power supply component is installed on the corresponding baron ground by means of the plastic rivet.

13. The antenna system according to claim 2, characterized in that, The inner wall of the encapsulation wall is provided with slots for fixing the substrate of the transmission network. There are two slots arranged opposite to each other and along the first direction of the phase shifter cavity.

14. The antenna system according to claim 2, characterized in that, At least one end face of the two ends of the phase shifter cavity in the first direction is not provided with the encapsulation wall to leave an opening for the transmission network to be connected to an external control element.

15. The antenna system according to claim 1, characterized in that, The reflector has an opening; the power supply balun passes through the reflector via the opening.

16. The antenna system according to any one of claims 1-15, characterized in that, The number of radiation units is multiple.

17. A method for assembling an antenna system, characterized in that, For assembling the antenna system as described in any one of claims 1 to 16, the assembly method includes the following steps: Insert the transmission network to be assembled into the phase shifter cavity, fix the feeder of the feeder balun to the balun ground integrally formed with the phase shifter cavity through the insulating part, and electrically connect the feeder to the transmission network. After assembly, a phase shifter balun assembly is formed. The phase shifter cavity is fixedly connected to the reflector by passing the feed balun of the phase shifter balun assembly through the opening of the reflector. The ground plane of the feed element is electrically connected to the radiating surface to form an antenna system.

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