Antenna feed structure, base station antenna device, base station

Abstract

This application relates to an antenna feeding structure, a base station antenna device, and a base station. The antenna feeding structure includes a cavity module and a feeding module. The cavity module has a first cavity and a second cavity, with a partition wall between the first cavity and the second cavity. The feeding module includes: a first feeding network located in the first cavity, the first feeding network having a first signal line, the first signal line including a first main segment and a first bent segment, one end of the first bent segment being connected to one end of the first main segment, the first bent segment being bent towards the partition wall relative to the first main segment; a second feeding network located in the second cavity, the second feeding network having a second signal line; and an adapter, passing through the partition wall, one end of the adapter located in the first cavity and connected to the first bent segment, the other end of the adapter located in the second cavity and connected to the second signal line. The above-described antenna feeding structure can reduce the discontinuity of signal transmission between the first feeding network and the second feeding network in two different cavities.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to antenna feeding structures, base station antenna devices, and base stations. Background Technology

[0002] With the development of communication technology, the integration of base station antenna devices is becoming increasingly sophisticated, and the requirements for signal transmission between the various feed networks of the base station antenna device are also becoming more stringent. In some base station antenna devices, it is necessary to achieve electrical connection between feed networks in two different cavities, such as the electrical connection between the phase-shifting network in the phase-shifting cavity and the combining network in the combining cavity.

[0003] When two feed networks are connected, there will be some discontinuity when the signal is transmitted from one feed network to the other. In base station antenna devices, the two feed networks are located in two different cavities, and the discontinuity of the signal transmission between the two feed networks is relatively strong, resulting in poor signal transmission performance. Summary of the Invention

[0004] Therefore, it is necessary to address the problem that the signal transmission between two feed networks in existing base station antenna devices is highly discontinuous, resulting in poor signal transmission performance, and to provide an antenna feed structure, a base station antenna device, and a base station.

[0005] An antenna feeding structure includes a cavity module and a feeding module, wherein the cavity module has an adjacent first cavity and a second cavity, and a partition wall is provided between the first cavity and the second cavity;

[0006] The power supply module includes:

[0007] A first power supply network is located in the first cavity. The first power supply network has a first signal line, which includes a first main body segment and a first bent segment. The first main body segment is parallel to the partition wall, and one end of the first bent segment is connected to one end of the first main body segment. The first bent segment bends toward the partition wall relative to the first main body segment.

[0008] A second power supply network, located in the second cavity, the second power supply network having a second signal line; and

[0009] An adapter is inserted through the partition wall. One end of the adapter is located in the first cavity and connected to the first bent section, while the other end of the adapter is located in the second cavity and connected to the second signal line.

[0010] In one embodiment, the first bending segment includes:

[0011] A first bending segment, one end of which is connected to one end of the first main body segment, the first bending segment bending towards the partition wall relative to the first main body segment; and,

[0012] The second bending segment has one end connected to the end of the first bending segment away from the first main body segment, and the second bending segment is parallel to the partition wall.

[0013] In one embodiment, the length directions of the first cavity and the second cavity are the same; the width direction of the second cavity is along a first direction, the width direction of the first cavity is perpendicular to the first direction, and the first direction is along the thickness direction of the partition wall.

[0014] In one embodiment, the second signal line includes a second main body segment and a second bent segment, one end of the second bent segment being connected to one end of the second main body segment, the second bent segment being bent relative to the second main body segment, and the second bent segment being parallel to the partition wall.

[0015] In one embodiment, the end of the adapter located in the second cavity is a first connecting end, and the end of the second signal line connected to the adapter is a first mating end; one of the first connecting end and the first mating end is provided with a first positioning groove, and the other mates with the first positioning groove.

[0016] In one embodiment, the end of the adapter located in the first cavity is a second connection end, and the end of the first signal line connected to the adapter is a second mating end; one of the first connection end and the first mating end is provided with a second positioning groove, and the other mates with the second positioning groove.

[0017] In one embodiment, the adapter is inserted into the second positioning groove along a first direction, the first direction being along the thickness direction of the partition wall; the adapter has a limiting boss at one end of the first cavity, the limiting boss being located on the side of the second bent segment facing away from the partition wall, and the second positioning groove preventing the limiting boss from passing through.

[0018] A base station antenna device, characterized in that it includes the antenna feeding structure described in any one of the above embodiments;

[0019] The second feed network is a phase-shifting network; the first feed network is a combining network.

[0020] The cavity module has a plurality of second cavities sequentially separated along a second direction, the second direction being perpendicular to the arrangement direction of the first cavity and the second cavity; the power supply module has a plurality of second power supply networks with different operating frequency bands and a plurality of adapters, the plurality of second power supply networks being arranged one-to-one in the plurality of second cavities; the first power supply network has a plurality of first signal lines;

[0021] Multiple first signal lines, multiple second signal lines of the second power supply network, and multiple adapters correspond one-to-one; one end of the adapter is connected to the first bent section of the corresponding first signal line, and the other end of the adapter is connected to the corresponding second signal line.

[0022] In one embodiment, there are two cavity modules and two power supply modules, with the power supply modules disposed on the corresponding cavity modules; the two cavity modules are arranged along the second direction.

[0023] A base station includes an antenna radome and a base station antenna device as described in any of the above embodiments. The base station antenna device further includes a radiating element, which includes a radiating arm, a balun, and a feed element. One end of the feed element is connected to the combining network. The antenna radome covers the radiating element.

[0024] In the aforementioned antenna feeding structure, base station antenna device, and base station, the first bending segment bends towards the partition wall compared to the first main body segment, thus allowing the first bending segment to be closer to the partition wall than the first main body segment. In this way, the first bending segment allows the first signal line to be closer to the second signal line (compared to a first signal line without the first bending segment), shortening the distance between the first and second signal lines. Simultaneously, it reduces the connection distance of the adapter, thereby reducing the discontinuity in signal transmission between the first signal line (first feeding network) and the second signal line (second feeding network) in two different cavities, and improving signal transmission performance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an antenna feeding structure according to one embodiment.

[0026] Figure 2 This is a schematic diagram of the antenna feeding structure according to another embodiment.

[0027] Figure 3 This is an exploded view of the connection between the first signal line, the second signal line, and the adapter in one embodiment.

[0028] Figure 4 This is an exploded view of the connection between the first signal line, the second signal line, and the adapter, according to another embodiment.

[0029] Figure 5 This is an exploded view of the connection between the first signal line, the second signal line, and the adapter in another embodiment.

[0030] Figure 6 This is an exploded view of the connection between the first signal line, the second signal line, and the adapter in another embodiment.

[0031] Figure 7 This is a schematic diagram of the antenna feeding structure of a base station antenna device.

[0032] Figure 8 For having Figure 7 The diagram shows the structure of a base station antenna device with an antenna feeding structure.

[0033] Figure 9 for Figure 8 The structure explodes diagram.

[0034] Figure 10 for Figure 8 The front view.

[0035] Figure 11 for Figure 9 A schematic diagram of the connection structure of the two power supply components and four phase shifting networks.

[0036] Figure 12 This is a schematic diagram of the structure of a base station antenna device according to an embodiment.

[0037] Figure 13 This is a schematic diagram of the connection structure of the radiating arm, balun, and connecting part in one embodiment.

[0038] Figure 14 for Figure 13 Top view.

[0039] Figure 15 This is a schematic diagram of the connection structure of the radiating arm, balun, and connecting part in another embodiment.

[0040] Figure 16 for Figure 15 Top view.

[0041] Explanation of reference numerals in the attached figures:

[0042] ZZ' is the first direction; XX' is the second direction; YY' is the third direction;

[0043] 100. Reflector; 101. Second connecting hole;

[0044] 200a, Radiation unit row; 200, Radiation unit; 210, Radiation arm; 210a, First radiation arm; 211a, First clearance groove; 210b, Second radiation arm; 211b, Second clearance groove; 211, Clearance hole; 212, Hollowed-out area; 220, Balun; 220a, First balun; 220b, Second balun; 230, Power supply component; 230a, First power supply component; 230b, Second power supply component; 240, Loading plate;

[0045] 300. Cavity structure; 301a. First phase-shifting cavity group; 301b. Second phase-shifting cavity group; 301. Phase-shifting cavity; 310. Phase-shifting network; 302. Avoidance cavity; 3021. Third opening; 303a. First transfer cavity; 303b. Second transfer cavity; 3031. First opening; 3032. Second opening; 320. Transfer structure; 321. Combining network; 322. Transfer component; 323. First transfer section; 3231. First slot; 324. Second transfer section; 3241. Second slot; 330. Partition wall;

[0046] 400. Connecting component; 410. Connecting part; 411. First connecting hole; 420. Fastening part;

[0047] 501. First cavity; 502. Second cavity; 510. Separating wall;

[0048] 611, First signal line; 6111, First main body segment; 6112, First bend segment; 6112a, First bend segment; 6112b, Second bend segment;

[0049] 621, Second signal line; 6211, Second main body segment; 6212, Second bend segment; 6212a, Third bend segment; 6212b, Fourth bend segment;

[0050] 601, First positioning groove; 602, Second positioning groove; 631, Positioning boss; 632, Limiting boss. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are 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 this application. However, this application can be implemented 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 this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" 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. Similarly, "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.

[0056] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] Please refer to Figure 1 One embodiment of this application provides an antenna feeding structure, which includes a cavity module and a feeding module. The cavity module has an adjacent first cavity 501 and a second cavity 502, and a partition wall 510 is provided between the first cavity 501 and the second cavity 502. The partition wall 510 separates the first cavity 501 and the second cavity 502. The first cavity 501 and the second cavity 502 are adjacent along a first direction ZZ', where the first direction ZZ' is the thickness direction of the partition wall 510.

[0058] The power supply module includes a first power supply network 610, a second power supply network 620, and an adapter 630.

[0059] The first power supply network 610 is located in the first cavity 501. The first power supply network 610 has a first signal line 611, which includes a first main body segment 6111 and a first bent segment 6112. The first main body segment 6111 is parallel to the partition wall 510. One end of the first bent segment 6112 is connected to one end of the first main body segment 6111, and the first bent segment 6112 bends towards the partition wall 510 relative to the first main body segment 6111.

[0060] The second power supply network 620 is located in the second cavity 502 and has a second signal line 621. The adapter 630 passes through the partition wall 510. One end of the adapter 630 is located in the first cavity 501 and connected to the first bent section 6112, and the other end of the adapter 630 is located in the second cavity 502 and connected to the second signal line 621.

[0061] In the aforementioned antenna feeding structure, the first bent segment 6112 bends towards the partition wall 510 compared to the first main body segment 6111, thus allowing the first bent segment 6112 to be closer to the partition wall 510. In this way, the first bent segment 6112 allows the first signal line 611 to be closer to the second signal line 621 (compared to a first signal line without the first bent segment), shortening the distance between the first signal line 611 and the second signal line 621. Simultaneously, it reduces the connection distance of the adapter 630, thereby reducing the discontinuity in signal transmission between the first signal line 611 (first feeding network 610) and the second signal line 621 (second feeding network 620) in two different cavities, and improving signal transmission performance.

[0062] The first feeder network 610 and the second feeder network 620 can be two different types of feeder networks. For example, the second feeder network 620 is a phase-shifting network, and the first feeder network 610 is a combining network.

[0063] The first feed network 610 and the second feed network 620 can be two feed networks that need to be grounded together. For example, the first feed network 610 and the second feed network 620 are two networks with different operating frequency bands. They are connected by an adapter 630. By grounding through either the feed network or the adapter 630, the two feed networks can be grounded together.

[0064] The first feed network 610 and the second feed network 620 can be two feed networks 610 divided from a longer feed network. By connecting the two feed networks 610 to replace the longer feed network, the total length of the feed network can be reduced.

[0065] Please refer to Figure 1 In some embodiments, the first bending segment 6112 includes a first bending segment 6112a and a second bending segment 6112b. One end of the first bending segment 6112a is connected to one end of the first main body segment 6111, and the first bending segment 6112a bends towards the partition wall 510 relative to the first main body segment 6111. One end of the second bending segment 6112b is connected to the end of the first bending segment 6112a away from the first main body segment 6111, and the second bending segment 6112b is parallel to the partition wall 510.

[0066] By bending the first bend segment 6112a towards the partition wall 510, the distance between the first signal line 611 and the second signal line 621 is shortened. At the same time, by bending the second bend segment 6112b parallel to the partition wall 510, it is convenient for the adapter 630 to connect with the second bend segment 6112b, that is, it is convenient for the adapter 630 to connect with the first signal line 611.

[0067] Understandably, the extension direction of the adapter 630 is along the first direction ZZ', which is along the thickness direction of the partition wall 510. The adapter 630 passes through the partition wall 510 along the first direction ZZ'. Since the second bent segment 6112b is parallel to the partition wall 510, the second bent segment 6112b is perpendicular to the extension direction of the adapter 630, thereby facilitating the connection between the two.

[0068] In one embodiment, both the first cavity 501 and the second cavity 502 have a length direction, a width direction, and a thickness direction. The length, width, and thickness of the first cavity 501 decrease sequentially, as do the length, width, and thickness of the second cavity 502. The length directions of the first cavity 501 and the second cavity 502 are the same, both along a third direction.

[0069] Please refer to Figure 1 The width direction of the second cavity 502 is along the first direction ZZ', and the width direction of the first cavity 501 is perpendicular to the first direction ZZ' and along the second direction XX'. The third direction is perpendicular to the first direction ZZ' and the second direction XX'.

[0070] Please refer to Figure 1 In one embodiment, the second signal line 621 includes a second main body segment 6211 and a second bent segment 6212, one end of which is connected to one end of the second main body segment 6211. The second bent segment 6212 is bent relative to the second main body segment 6211 and is parallel to the partition wall 510.

[0071] The extension direction of the second main body segment 6211 can be along the width direction of the second cavity 502, i.e., the first direction ZZ'. By bending the second bent segment 6212 relative to the second main body segment 6211, the second bent segment 6212 is made parallel to the partition wall 510, which facilitates the connection between the adapter 630 and the second bent segment 6212, i.e., facilitates the connection between the adapter 630 and the second signal line 621.

[0072] The adapter 630 is inserted through the partition wall 510 along the first direction ZZ'. Since the second bent section 6212 is parallel to the partition wall 510, the second bent section 6212 is perpendicular to the extension direction of the adapter 630, thereby facilitating the connection between the two.

[0073] Please refer to Figure 2 In other embodiments, both the first cavity 501 and the second cavity 502 have a length direction, a width direction, and a thickness direction, with the length, width, and thickness of the first cavity 501 decreasing sequentially, and the length, width, and thickness of the second cavity 502 decreasing sequentially as well. The length directions of the first cavity 501 and the second cavity 502 are the same, both along a third direction. Figure 1The difference in the embodiment shown is that the width direction of the second cavity 502 is the same as that of the first cavity 501, both along the second direction XX'.

[0074] Please refer to Figure 2 In some embodiments, the second signal line 621 includes a second main body segment 6211 and a second bent segment 6212. One end of the second bent segment 6212 is connected to one end of the second main body segment 6211, and the second bent segment 6212 bends towards the partition wall 510 relative to the second main body segment 6211. This allows the second bent segment 6212 to be closer to the partition wall 510 than the second main body segment 6211. Thus, the second signal line 621 can be brought closer to the first signal line 611 by the second bent segment 6212, shortening the distance between the second signal line 621 and the first signal line 611 (compared to a second signal line without the second bent segment). At the same time, it can shorten the connection distance of the adapter 630, thereby reducing the discontinuity of signal transmission between the first signal line 611 (first feed network 610) and the second signal line 621 (second feed network 620) in two different cavities, and improving the signal transmission effect.

[0075] Please refer to Figure 2 In some embodiments, the second bending segment 6212 includes a third bending segment 6212a and a fourth bending segment 6212b. One end of the third bending segment 6212a is connected to one end of the second main body segment 6211, and the third bending segment 6212a bends towards the partition wall 510 relative to the second main body segment 6211. One end of the fourth bending segment 6212b is connected to the end of the third bending segment 6212a away from the second main body segment 6211, and the fourth bending segment 6212b is parallel to the partition wall 510.

[0076] The third bend segment 6212a bends towards the partition wall 510, shortening the distance between the second signal line 621 and the first signal line 611. Simultaneously, the fourth bend segment 6212b is parallel to the partition wall 510, facilitating the connection between the adapter 630 and the fourth bend segment 6212b, thus facilitating the connection between the adapter 630 and the second signal line 621.

[0077] Understandably, the adapter 630 passes through the partition wall 510 along the first direction ZZ'. Since the fourth bent segment 6212b is parallel to the partition wall 510, the fourth bent segment 6212b is perpendicular to the extension direction of the adapter 630, thereby facilitating the connection between the two.

[0078] Please combine Figures 3 to 6In some embodiments, one end of the adapter 630 located in the second cavity 502 is the first connecting end, and the end of the second signal line 621 connected to the adapter 630 is the first mating end. One of the first connecting end and the first mating end is provided with a first positioning groove 601, and the other mates with the first positioning groove 601, thereby facilitating the welding of the first mating end and the first connecting end.

[0079] Specifically Figure 3 In the illustrated embodiment, the second signal line 621 extends along the first direction ZZ', the first main body segment 6111 extends along the third direction YY', and the second bent segment 6112b extends along the third direction YY'. The first mating end of the second signal line 621 is provided with a first positioning groove 601, which is a recessed groove along the first direction ZZ'. The first connecting end of the adapter 630 is provided with a positioning boss 631, whose protrusion direction is along the second direction XX'. The positioning boss 631 mates with the first positioning groove 601.

[0080] exist Figure 4 In the illustrated embodiment, the second signal line 621 includes a second main body segment 6211 and a second bent segment 6212. The extension direction of the second main body segment 6211 is along the first direction ZZ', and the extension direction of the second bent segment 6212 is along the second direction XX'. The extension direction of the first main body segment 6211 is along the second direction XX', and the extension direction of the second bent segment 6112b is along the second direction XX'. The first mating end of the second signal line 621 is the end of the second bent segment 6212 away from the second main body segment 6211, and the first mating end is provided with a first positioning groove 601. The first connecting end of the adapter 630 is provided with a positioning boss 631, and the protrusion direction of the positioning boss 631 is along the first direction ZZ'. The positioning boss 631 mates with the first positioning groove 601.

[0081] exist Figure 5 In the illustrated embodiment, the second signal line 621 includes a second main body segment 6211 and a second bent segment 6212. The extension direction of the second main body segment 6211 is along a first direction ZZ', and the extension direction of the second bent segment 6212 is along a second direction XX'. The extension direction of the first main body segment 6211 is along a third direction YY', and the extension direction of the second bent segment 6212b is also along a third direction YY'. The first mating end of the second signal line 621 is the end of the second bent segment 6212 away from the second main body segment 6211, and the first mating end is provided with a first positioning groove 601. The first connecting end of the adapter 630 mates with the first positioning groove 601.

[0082] exist Figure 6In the illustrated embodiment, the second signal line 621 includes a second main body segment 6211 and a second bent segment 6212. The extension direction of the second main body segment 6211 is along the first direction ZZ', and the extension direction of the second bent segment 6212 is along the second direction XX'. The extension direction of the first main body segment 6211 is along the second direction XX', and the extension direction of the second bent segment 6112b is along the second direction XX'. The first mating end of the second signal line 621 is the end of the second bent segment 6212 away from the second main body segment 6211, and the first mating end is provided with a first positioning groove 601. The first connecting end of the adapter 630 is provided with a positioning boss 631, and the protrusion direction of the positioning boss 631 is along the first direction ZZ'. The positioning boss 631 mates with the first positioning groove 601.

[0083] Please refer to Figure 4 In some embodiments, one end of the adapter 630 located in the first cavity 501 is the second connection end, and the end of the first signal line 611 connected to the adapter 630 is the second mating end. One of the second connection end and the second mating end is provided with a second positioning groove 602, and the other mates with the second positioning groove 602, thereby facilitating the welding of the second mating end and the second connection end.

[0084] exist Figure 4 In the illustrated embodiment, the first main body segment 6111 extends in the second direction XX', and the second bent segment 6112b extends in the second direction XX'. The second mating end of the first signal line 611 is the second bent segment 6112b, and the second mating end is provided with a second positioning groove 602. The second connecting end of the adapter 630 is provided with a limiting boss 632, and the protrusion direction of the limiting boss 632 is along the first direction ZZ'. The limiting boss 632 mates with the second positioning groove 602.

[0085] Please refer to Figure 3 , Figure 5 and Figure 6 In some embodiments, the second bent segment 6112b is provided with a second positioning groove 602. The adapter 630 passes through the second positioning groove 602 along a first direction ZZ'. The first direction ZZ' is along the thickness direction of the partition wall 510. One end of the adapter 630 located in the first cavity 501 has a limiting boss 632, which is located on the side of the second bent segment 6112b facing away from the partition wall 510, and the second positioning groove 602 prevents the limiting boss 632 from passing through. During assembly, when the limiting boss 632 abuts against the second bent segment 6112b, it indicates that the adapter 630 is assembled in place along the first direction ZZ', facilitating positioning of the adapter 630 and welding of the adapter 630 to the second bent segment 6112b.

[0086] exist Figure 3 , Figure 5 , Figure 6In the illustrated embodiment, the limiting boss 632 of the adapter 630 protrudes along the third direction YY'. The adapter 630 has limiting bosses 632 on both sides along the third direction YY'.

[0087] exist Figure 3 and Figure 5 In the embodiment shown, the first main body segment 6111 extends in the third direction YY', the second bending segment 6112b extends in the third direction YY', and the second positioning groove 602 is provided on the second bending segment 6112b.

[0088] exist Figure 6 In the embodiment shown, the first main body segment 6111 extends in the second direction XX', the second bent segment 6112b extends in the second direction XX', and the second positioning groove 602 is disposed in the second bent segment 6112b.

[0089] Please combine Figure 7 and Figure 8 An embodiment of this application also provides a base station antenna device, including the antenna feeding structure of any of the above embodiments. The second feeding network is a phase-shifting network 310. The first feeding network is a combining network 321. The first cavity is a transition cavity accommodating the combining network 321. The second cavity is a phase-shifting cavity 301 accommodating the phase-shifting network 310.

[0090] The cavity module has multiple second cavities (phase-shifting cavities 301) sequentially separated along a second direction, which is perpendicular to the first direction ZZ'. The power supply module has multiple second power supply networks (phase-shifting networks 310) with different operating frequency bands and multiple adapters 322. The multiple second power supply networks 620 (phase-shifting networks 310) are correspondingly arranged in the multiple second cavities (phase-shifting cavities 301). The first power supply network 610 (combining network 321) has multiple first signal lines 611.

[0091] Multiple first signal lines 611, multiple second signal lines 621 of multiple second power supply networks 620, and multiple adapters 322 correspond one-to-one. One end of the adapter 322 is connected to the first bend 6112 of the corresponding first signal line 611, and the other end of the adapter 322 is connected to the corresponding second signal line 621.

[0092] Please combine Figures 8 to 10In one embodiment, the base station antenna device includes: a reflector 100, a radiating element 200, and a cavity structure 300. The radiating element 200 is a dual-polarized radiating element, comprising two pairs of orthogonally polarized radiating arms 210, two baluns 220, and two feed elements 230. One end of each balun 220 is connected to a radiating arm 210, and the two feed elements 230 are correspondingly inserted into the two baluns 220. The baluns 220 are fixedly connected to the reflector 100, thereby fixing the radiating element 200 entirely to the reflector 100. The two baluns 220 are designated as a first balun 220a and a second balun 220b. The two feed elements 230 are designated as a first feed element 230a and a second feed element 230b.

[0093] The cavity structure 300 and the radiation arm 210 are located on opposite sides of the reflector 100 along a first direction ZZ', where ZZ' is along the thickness direction of the reflector 100. The cavity structure 300 is fixedly connected to the reflector 100. The cavity structure 300 includes two cavities separated along the first direction ZZ'. A partition wall is provided between the two cavities, and the partition wall is a shared cavity wall between the two cavities. The two cavities are separated by the partition wall.

[0094] The two-layer cavity includes two sets of phase-shifting cavity groups arranged along a second direction XX' and a buffer cavity 302 located between the two sets of phase-shifting cavity groups. The second direction XX' is perpendicular to the first direction ZZ'. The two sets of phase-shifting cavity groups are defined as the first phase-shifting cavity group and the second phase-shifting cavity group, respectively. Each set of phase-shifting cavity groups has at least one phase-shifting cavity 301. The number of phase-shifting cavities 301 in the two sets of phase-shifting cavity groups is the same. Each set of phase-shifting cavity groups is provided with a phase-shifting network 310. Specifically, each phase-shifting cavity 301 is provided with a phase-shifting network 310.

[0095] In the two-cavity structure, the other cavity has two transition cavities separated by a second direction XX'. The transition cavities are located on the side of the phase-shifting cavity assembly facing away from the reflector 100. Each of the two transition cavities contains a transition structure 320. The two transition cavities are designated as a first transition cavity 303a and a second transition cavity 303b. The transition structure 320 within the first transition cavity 303a is the first transition structure 320a. The transition structure 320 within the second transition cavity 303b is the second transition structure 320b.

[0096] The end of the balun 220 furthest from the radiating arm 210 passes through the reflector 100 and extends into the recess cavity 302. One end of each of the two feed elements 230 passes into one of the two transition cavities, and one end of each feed element 230 is connected to the transition structure 320. The two transition cavities correspond one-to-one with two sets of phase-shifting cavity groups. The transition structure 320 within each transition cavity extends into the corresponding phase-shifting cavity group and is connected to the phase-shifting network 310.

[0097] Specifically, one end of the first power supply component 230a passes through the bottom of the first balun 220a and the clearance cavity 302, extends into the first transition cavity 303a, and then connects to the first transition structure 320a. The first transition structure 320a extends into the phase shift cavity 301 of the first phase shift cavity group and connects to the phase shift network 310 within the phase shift cavity 301. Thus, the first power supply component 230a is indirectly connected to the phase shift network 310 within the first phase shift cavity group through the first transition structure 320a.

[0098] One end of the second power supply component 230b passes through the bottom of the second balun 220b and the clearance cavity 302, extends into the second transition cavity 303b, and then connects to the second transition structure 320b. The second transition structure 320b extends into the phase shift cavity 301 of the second phase shift cavity group and connects to the phase shift network 310 within the phase shift cavity 301. Thus, the second power supply component 230b is indirectly connected to the phase shift network 310 within the second phase shift cavity group through the second transition structure 320a.

[0099] In the aforementioned base station antenna device, a recess 302 is provided between the two phase-shifting cavity groups. The end of the balun 220 furthest from the radiating arm 210 can pass through the reflector 100 and extend into the recess 302. One end of the feed element 230 passes through the bottom of the corresponding balun 220 and the recess 302 and extends into the corresponding adapter cavity, connecting with the corresponding adapter structure 320. The adapter structure 320 extends into the corresponding phase-shifting cavity group and connects with the corresponding phase-shifting network 310, thereby allowing the feed element 230 to be indirectly connected to the corresponding phase-shifting network 310 through the corresponding adapter structure 320.

[0100] When maintaining the aforementioned base station antenna device, if it is necessary to disconnect the electrical connection between the feed component 230 and the corresponding phase-shifting network 310, it is only necessary to disconnect the electrical connection between the feed component 230 and the corresponding adapter structure 320. Since the connection position between the feed component 230 and the adapter structure 320 is located within the corresponding adapter cavity, when disconnecting the electrical connection between the feed component 230 and the adapter structure 320 within the adapter cavity (i.e., when disconnecting the electrical connection between the feed component 230 and the phase-shifting network 310), the operation position is located within the adapter cavity of one of the two cavities, thus not affecting the welding reliability of other solder joints within the phase-shifting cavity 301 of the other cavity.

[0101] In some technical solutions, the phase-shifting network can be grounded by connecting it to the phase-shifting cavity via a grounding conductor. Other solder joints within the phase-shifting cavity 301 include, for example, solder joints between the grounding conductor and the cavity wall of the phase-shifting cavity, and solder joints between the phase-shifting network and the grounding conductor. The types of these other solder joints are not listed exhaustively; please refer to existing technologies.

[0102] Furthermore, since the balun 220 extends into the cavity 302, and the corresponding feed element 230 passes through the bottom of the balun 220 and the cavity 302, the inner cavity of the balun 220 simultaneously forms a resonant cavity within the cavity 302. This is beneficial for improving the filtering characteristics of the high-frequency radiation unit to the low-frequency radiation unit and increasing the radiation efficiency of the base station antenna.

[0103] In this embodiment, a phase-shifting cavity group is defined, and the cavity structure 300 includes two groups of phase-shifting cavities arranged along the second direction XX'. It is called a phase-shifting cavity group because each group consists of at least one phase-shifting cavity. The two groups of phase-shifting cavities have the same number of phase-shifting cavities. Specifically, each group of phase-shifting cavities may have one phase-shifting cavity or more than two phase-shifting cavities. Each phase-shifting cavity is used to house a phase-shifting network.

[0104] Please combine Figures 8 to 10 In other embodiments, each group of phase-shifting cavities includes a plurality of phase-shifting cavities 301 sequentially separated along the second direction XX', and each phase-shifting cavity 301 is provided with a phase-shifting network 310. The operating frequency bands of the phase-shifting networks 310 in each phase-shifting cavity 301 in the same group of phase-shifting cavities are different.

[0105] The transition structure 320 includes a combining network 321. One end of the power supply component 230 is connected to the combining network 321. The phase-shifting networks 310 in each phase-shifting cavity 301 of the same group of phase-shifting cavities are respectively connected to the combining network 321 in the corresponding transition cavity. The phase-shifting networks 310 in the multiple phase-shifting cavities 301 of the first group of phase-shifting cavities are respectively connected to the combining network 321 in the first transition structure 320a. The phase-shifting networks 310 in the multiple phase-shifting cavities 301 of the second group of phase-shifting cavities are respectively connected to the combining network 321 in the second transition structure 320b.

[0106] Since the phase shifting network 310 in each phase shifting cavity 301 of the same group of phase shifting cavities is connected to the combining network 321 in the corresponding transfer cavity, each phase shifting network 310 in the same group of phase shifting cavities can be connected to the same power supply component 230 through the corresponding combining network 321, thereby enabling the combining of each phase shifting network 310 in different operating frequency bands.

[0107] Specifically Figures 8 to 10 In the illustrated embodiment, each group of phase-shifting cavities includes two phase-shifting cavities 301, and the phase-shifting networks 310 within the two phase-shifting cavities 301 of the same group operate at different frequency bands. (Refer to...) Figure 11 The phase-shifting networks 310 in the two phase-shifting cavities 301 of the first group of phase-shifting cavities are the first phase-shifting network 310a and the third phase-shifting network 310c, respectively. The first phase-shifting network 310a and the second phase-shifting network 310c operate at different frequency bands, and they are electrically connected to the combining network 321 in the first transition structure 320a, respectively.

[0108] The phase-shifting networks 310 in the two phase-shifting cavities 301 of the second phase-shifting cavity group are the second phase-shifting network 310b and the fourth phase-shifting network 310d, respectively. The second phase-shifting network 310b and the fourth phase-shifting network 310d operate in different frequency bands, and they are electrically connected to the combining network 321 in the second transition structure 320b, respectively.

[0109] In other embodiments, each group of phase-shifting cavities may also include three or more phase-shifting cavities, and the operating frequency bands of the phase-shifting networks in each phase-shifting cavity of the same group of phase-shifting cavities are different from each other.

[0110] refer to Figure 11 In some embodiments, the adapter structure 320 further includes an adapter 322 corresponding to the phase shift cavity 301. One end of the adapter 322 is located inside the adapter cavity and connected to the combining network 321, and the other end of the adapter 322 extends into the corresponding phase shift cavity 301 and is connected to the phase shift network 310.

[0111] Specifically, the number of transition components 322 in each transition structure 320 is the same as the number of phase shift cavities 301 in the corresponding phase shift cavity group. In this way, multiple transition components 322 in each transition structure 320 can be connected one-to-one with the phase shift networks 310 in multiple phase shift cavities 301, thereby facilitating the connection of the phase shift networks 310 in multiple phase shift cavities 301 in the same group of phase shift cavities to the combining network 321 in the corresponding transition cavity.

[0112] exist Figure 11 In the embodiment shown, each transition structure 320 includes two transition components 322. The two phase shifting networks 310 in the two phase shifting cavities 301 of the same phase shifting cavity group are respectively connected to the combining network 321 in the corresponding transition cavity through the two transition components 322.

[0113] Please refer to Figure 12 In some embodiments, the base station antenna device includes a column of radiating elements 200a. Of course, the base station antenna device may also include multiple columns of radiating elements 200a arranged at intervals along a second direction XX'.

[0114] Each column of radiating elements 200a comprises multiple radiating elements 200 arranged sequentially along a third direction YY'. The third direction YY' is perpendicular to the first direction ZZ' and perpendicular to the second direction XX'. The number of cavity structures 300 is the same as the number of columns of radiating elements 200a. Each cavity structure 300 corresponds one-to-one with a column of radiating elements 200a. The length direction of the cavity structure 300 is the column direction of the corresponding radiating element column 200a.

[0115] Each transition cavity contains multiple transition structures 320 arranged sequentially along the third direction YY'. Each of the multiple transition structures 320 in each transition cavity corresponds one-to-one with a multiple radiation unit 200 in the corresponding radiation unit column 200a. The feed element 230 in the radiation unit 200 passes through the bottom of the avoidance cavity 302 and enters the transition cavity, where it connects with the corresponding transition structure 320.

[0116] Specifically, the first transition cavity 303a contains a plurality of first transition structures 320a arranged sequentially along the third direction YY', each of which corresponds one-to-one with a plurality of radiating elements 200 in the corresponding radiating element column 200a. The second transition cavity 303b contains a plurality of second transition structures 320b arranged sequentially along the third direction YY', each of which corresponds one-to-one with a plurality of radiating elements 200 in the corresponding radiating element column 200a. The first feed element 230a in each radiating element 200 passes through the bottom of the recess cavity 302 into the first transition cavity 303a and connects to the corresponding first transition structure 320a. The second feed element 230b in each radiating element 200 passes through the bottom of the recess cavity 302 into the second transition cavity 303b and connects to the corresponding second transition structure 320b.

[0117] Optionally, the connection between the power supply component 230 and the corresponding transition structure 320 is welding. Therefore, the power supply component 230 and the transition structure 320 can be welded or de-welded within the transition cavity. Since the connection position between the power supply component 230 and the transition structure 320 is located within the corresponding transition cavity, all transition structures 320 and their corresponding power supply components 230 within the same transition cavity can be de-welded simultaneously. Moreover, de-welding will not affect the welding reliability of other weld points within the phase shift cavity 301, thereby enabling the rapid disconnection of all transition structures 320 and their corresponding power supply components 230 within the same transition cavity, improving maintenance efficiency.

[0118] Please combine Figure 7 and Figure 8 In one embodiment, there are two cavity modules and two power supply modules, with the power supply modules disposed within the corresponding cavity modules. The two cavity modules are arranged along the second direction YY'.

[0119] Specifically, the cavity structure 300 is divided into two cavity modules arranged along the second direction XX', namely the first cavity module and the second cavity module. Each cavity module includes a transition cavity and a phase-shifting cavity group adjacent along the first direction ZZ'. Please refer to... Figure 7Specifically, the first cavity module includes a first transition cavity 303a and a first phase-shifting cavity group 301a adjacent along the first direction ZZ'. The second cavity module includes a second transition cavity 303b and a second phase-shifting cavity group 301b adjacent along the first direction ZZ'. A partition wall 330 separates the transition cavity from the phase-shifting cavity 301 of the corresponding phase-shifting cavity group. The partition wall 330 separates the transition cavity from the phase-shifting cavity 301 of the corresponding phase-shifting cavity group.

[0120] The combining network 321 has a first signal line 611, which includes a first main body segment 6111 and a first bend segment 6112. The first main body segment 6111 is parallel to the partition wall 330. One end of the first bend segment 6112 is connected to one end of the first main body segment 6111, and the first bend segment 6112 bends toward the partition wall 330 relative to the first main body segment 6111.

[0121] The phase-shifting network 310 has a second signal line 621. The first signal line 611, the second signal line 621, and the adapter 322 are correspondingly arranged. The adapter 322 passes through the partition wall 330, with one end of the adapter 322 located in the adapter cavity and connected to the corresponding first bending section 6112, and the other end of the adapter 322 located in the phase-shifting cavity 301 and connected to the corresponding second signal line 621.

[0122] Because the first bent segment 6112 bends towards the partition wall 330 relative to the first main body segment 6111, it can be closer to the partition wall 330. Thus, the first bent segment 6112 allows the first signal line 611 to be closer to the second signal line 621 (compared to a first signal line without the first bent segment), shortening the distance between the first signal line 611 and the second signal line 621. Simultaneously, it can shorten the connection distance of the adapter 322, thereby reducing the discontinuity in signal transmission between the first signal line 611 (combining network 321) and the second signal line 621 (phase shifting network 310) in two different cavities, and improving signal transmission performance.

[0123] Optionally, the first power supply network and the second power supply network are respectively made of sheet metal.

[0124] Optionally, the first signal line 611 is made of sheet metal strip wire. The second signal line 621 is made of sheet metal strip wire.

[0125] The implementation of the second signal line 621 of the first phase-shifting network 310a, the first signal line 611 of the corresponding combining network 321, and the corresponding adapter 322 can be adopted as follows: Figure 4 or Figure 6 The example shown.

[0126] The implementation of the second signal line 621 of the second phase-shifting network 310c, the first signal line 611 of the corresponding combining network 321, and the corresponding adapter 322 can be adopted as follows: Figure 3 or Figure 5 The example shown.

[0127] The implementation of the second signal line 621 of the third phase-shifting network 310b, the first signal line 611 of the corresponding combining network 321, and the corresponding adapter 322 can be adopted as follows: Figure 4 or Figure 6 The example shown.

[0128] The implementation of the second signal line 621 of the second phase-shifting network 310d, the first signal line 611 of the corresponding combining network 321, and the corresponding adapter 322 can be adopted as follows: Figure 3 or Figure 5 The example shown.

[0129] Please refer to Figures 8 to 10 In some embodiments, the two transition cavities have openings on opposite sides along the second direction XX'. Thus, multiple transition structures 320 arranged along the third direction YY' can enter or exit their respective transition cavities through the corresponding openings, facilitating assembly or disassembly. Furthermore, when connecting or disconnecting the transition structure 320 from its corresponding power supply component 230, the operation can be performed by entering the transition cavity through the corresponding opening, thereby simplifying the operation.

[0130] Specifically, the first transition cavity 303a has a first opening 3031 on the side opposite to the second transition cavity 303b, and the second transition cavity 303b has a second opening 3032 on the side opposite to the first transition cavity 303a. Thus, a plurality of first transition structures 320a arranged along the third direction YY' can be inserted into or removed from the first transition cavity 303a through the first opening 3031, and a plurality of second transition structures 320b arranged along the third direction YY' can be inserted into or removed from the second transition cavity 303b through the second opening 3032, thereby facilitating assembly or disassembly.

[0131] Furthermore, when connecting or disconnecting the first adapter structure 320a from the corresponding first power supply component 230a, the operation can be performed by entering the first adapter cavity 303a through the first opening 3031, thus facilitating the operation. Similarly, when connecting or disconnecting the second adapter structure 320b from the corresponding second power supply component 230b, the operation can be performed by entering the second adapter cavity 303b through the second opening 3032, thus facilitating the operation.

[0132] Please refer to Figure 9In some embodiments, the recess 302 has a third opening 3021 at the end near the reflector 100. The balun 220 extends into the recess 302 through the third opening 3021. The reflector 100 covers the third opening 3021. Thus, after the balun 220 passes through the reflector 100, it can extend into the recess 302 through the third opening 3021.

[0133] In some embodiments, the balun 220 abuts against the bottom of the cavity 302. In other embodiments, there may be a gap between the balun 220 and the bottom of the cavity 302.

[0134] Please combine Figures 8 to 10 In one embodiment, the base station antenna device further includes a connecting assembly 400. The connecting assembly 400 includes a connecting portion 410 and a fastening portion 420. The connecting portion 410 is fixed to the outer wall of the balun 220 and located on the side of the reflector 100 facing away from the cavity structure 300. The fastening portion 420 passes sequentially through the connecting portion 410, the reflector 100, and the cavity wall of the cavity structure 300 to fix the connecting portion 410, the reflector 100, and the cavity wall of the cavity structure 300 together.

[0135] By providing a connecting portion 410 on the outer wall of the balun 220, with the connecting portion 410 and the cavity structure 300 located on opposite sides of the reflector 100, a fastening portion 420 can sequentially pass through the connecting portion 410, the reflector 100, and the cavity structure 300 to fix the three components: the radiation unit 200, the reflector 100, and the cavity structure 300. In this way, the radiation unit 200 and the cavity structure 300 for housing the phase-shifting network 310 can be simultaneously fixed to the reflector 100 in a single operation, saving assembly steps. Furthermore, since the radiation unit 200 and the cavity structure 300 can share the fastening portion 420 for fixing to the reflector 100, the number of fastening portions 420 is reduced.

[0136] refer to Figure 13 The connecting part 410 is provided with a first connecting hole 411. (Reference) Figure 9 The reflector 100 is provided with a second connecting hole 101. The cavity wall of the cavity structure 300 near the end of the reflector 100 is provided with a third connecting hole. The fastening part 420 is inserted into the first connecting hole 411, the second connecting hole 101 and the third connecting hole in sequence, thereby fixing the connecting part 410, the reflector 100 and the cavity wall of the cavity structure 300.

[0137] In some embodiments, the cavity wall of the cavity structure 300 near the reflector plate 100 is provided with a threaded hole (i.e., a third connecting hole). The fastening part 420 includes a rod and a head, with the head connected to one end of the rod. The end of the rod away from the head passes through the connecting part and the reflector plate 100 in sequence and is threadedly connected to the threaded hole.

[0138] Specifically, the end of the rod away from the head can pass through the first connecting hole 411 and the second connecting hole 101 in sequence. The third connecting hole is a threaded hole. Therefore, when the rod is screwed into the third connecting hole until the head abuts against the side of the connecting part 410 facing away from the reflector plate 100, the connecting part 410, the reflector plate 100 and the cavity wall of the cavity structure 300 can be fixed.

[0139] The connecting part 410 abuts against the reflector 100, and the cavity structure 300 abuts against the reflector 100, which is conducive to the reliable fixation of the connecting part 410, the reflector 100 and the cavity wall of the cavity structure 300.

[0140] Specifically, the fastening part 420 can be a bolt, and the rod part can be a screw.

[0141] In some embodiments, the connecting part 410 and the balun 220 are integrally formed, so the connecting part 410 can be formed at the same time as the balun 220 is processed, which is convenient for processing and the connection between the connecting part 410 and the balun 220 is reliable.

[0142] Please combine Figure 13 and Figure 14 In some embodiments, a first virtual axis is defined along a first direction ZZ', and a second virtual axis is defined along a third direction YY'. The third direction YY' is perpendicular to the first direction ZZ' and perpendicular to the second direction XX', so the first virtual axis is perpendicular to the second virtual axis. The first virtual axis intersects the second virtual axis, thereby dividing the space into four quadrants. There are two pairs of radiating arms 210, totaling four radiating arms 210. The four radiating arms 210 are located one-to-one within the four quadrants. In the orthogonal dual-polarized radiating unit, one pair of diagonally arranged radiating arms 210 (located in the first and third quadrants respectively) is 45° polarized, and the other pair of diagonally arranged radiating arms 210 (located in the second and fourth quadrants respectively) is -45° polarized, thus the two pairs of radiating arms 210 constitute orthogonal polarization.

[0143] Along the third direction YY', two adjacent radial arms 210 are provided with opposing clearance grooves on their sides, which together form clearance holes 211. Each clearance hole 211 corresponds to a fastening part 420. The fastening part 420 is located within the projection range of the corresponding clearance hole 211 onto the reflector plate 100, and the clearance hole 211 allows operating tools that operate on the fastening part 420 to pass through.

[0144] Specifically, two adjacent radiating arms 210 along the third direction YY' are defined as the first radiating arm 210a and the second radiating arm 210b, respectively. In this embodiment, since the four radiating arms 210 are located in the four quadrants, there are a total of two columns of first radiating arms 210a and second radiating arms 210b adjacent along the third direction YY'.

[0145] In the two adjacent radial arms 210 in the third direction YY', the first radial arm 210a is provided with a first clearance groove 211a on the side near the second radial arm 210b, and the second radial arm 210b is provided with a second clearance groove 211b on the side near the first radial arm 210a. The first clearance groove 211a and the second clearance groove 211b together form a clearance hole 211.

[0146] Since the fastening part 420 is located within the projection range of the outline of the corresponding clearance hole 211 on the reflector plate 100, the position of the fastening part 420 and the corresponding clearance hole 211 corresponds along the first direction ZZ'. Thus, after the operating tool passes through the clearance hole 211, the fastening part 420 can be operated, making it convenient to pass the fastening part 420 through the connecting part 410, the reflector plate 100 and the cavity wall of the cavity structure 300.

[0147] Understandably, when the fastener 420 is a bolt, the tool used can be a screwdriver.

[0148] Please refer to Figure 13 and Figure 14 In some embodiments, there are two sets of connecting components 400, arranged along the second direction XX'. Each connecting component 400 is connected to a balun 220 in a one-to-one correspondence. The two baluns 220 are arranged along the second direction XX', with the two sets of connecting components 400 located on opposite sides of the two baluns 220 along the second direction XX'.

[0149] Of the two sets of connecting components 400, one set is disposed on the side of the first balun 220a away from the second balun 220b along the second direction XX', and the other set is disposed on the side of the second balun 220b away from the first balun 220a along the second direction XX'. Thus, in this embodiment, two sets of connecting components 400 can be provided, thereby ensuring a reliable connection between the radiation unit 200, the reflector 100, and the cavity structure 300.

[0150] Please refer to Figure 15 and Figure 16 In other embodiments, the radiating arm 210 is provided with a hollowed-out region 212 extending along the first direction ZZ'. The fastening part 420 is located within the projection range of the outline of the corresponding hollowed-out region 212 on the reflector 100.

[0151] Since the outline of the corresponding hollow area 212 is within the projection range on the reflector plate 100, the position of the fastening part 420 corresponds to the position of the corresponding hollow area 212 along the first direction ZZ'. Thus, after the operating tool passes through the hollow area 212, the fastening part 420 can be operated, making it convenient to pass the fastening part 420 through the connecting part 410, the reflector plate 100 and the cavity wall of the cavity structure 300.

[0152] In this embodiment, by setting the fastening part 420 within the projection range of the outline of the corresponding hollow area 212, the fastening part 420 can be operated by means of the hollow area 212 on the radial arm 210 itself, without the need to specially open the avoidance hole 211.

[0153] Please refer to Figure 15 and Figure 16 In some embodiments, there are two sets of connecting components 400, and each connecting component 400 is connected to a balun 220 in a one-to-one correspondence. The arrangement direction of the two sets of connecting components 400 forms an angle with the second direction XX'. The two baluns 220 are arranged along the second direction XX'.

[0154] Of the two sets of connecting components 400, one set is connected to the first balun 220a, and the other set is connected to the second balun 220b. By making an angle between the arrangement direction of the two sets of connecting components 400 and the second direction XX', the fastening portions 420 of the two sets of connecting components 400 are located in the hollow areas 212 of the two different radiating arms 210, respectively. In this embodiment, two sets of connecting components 400 can be provided, thereby ensuring a reliable connection between the radiating unit 200, the reflector 100, and the cavity structure 300.

[0155] Optionally, the angle between the arrangement direction of the two sets of connecting components 400 and the second direction XX' is 45°. In this way, the positions of the first connecting hole 411 and the fastening part 420 can be located as close as possible to the center of the projection range of the corresponding hollow area 212, which facilitates operation.

[0156] Optionally, the positions of the two sets of connecting components 400 correspond to the positions of the two radial arms 210 in the first quadrant and the third quadrant, that is, the fastening parts 420 of the two sets of connecting components 400 correspond to the hollow areas 212 of the two radial arms 210 in the first quadrant and the third quadrant, respectively.

[0157] The end of the connecting portion 410 facing away from the corresponding balun 220 is inclined relative to the second direction XX'. Optionally, the inclination angle of the end of the connecting portion 410 facing away from the corresponding balun 220 relative to the second direction XX' is 45°. In this way, the positions of the first connecting hole 411 and the fastening portion 420 can be located as close as possible to the center area of ​​the corresponding hollow area 212, which facilitates operation.

[0158] In another embodiment, the number of connecting components 400 can also be four sets. Two sets of connecting components 400 are connected to the first balun 220a, and the other two sets of connecting components 400 are connected to the second balun 220b. The four sets of connecting components 400 have a total of four fastening parts 420. The four fastening parts 420 correspond one-to-one with the hollow areas 212 of the four radial arms 210, so that the four fastening parts 420 can be operated through the four hollow areas 212 respectively.

[0159] One embodiment of this application also provides a base station, including an radome and the base station antenna device described in any of the above embodiments. The base station antenna device further includes a radiating element, which includes a radiating arm, a balun, and a feed element. One end of the feed element is connected to a combining network. The radome covers the radiating element.

[0160] 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.

[0161] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An antenna feeding structure, characterized in that, It includes a cavity module and a power supply module. The cavity module has an adjacent first cavity and a second cavity, and a partition wall is provided between the first cavity and the second cavity. The power supply module includes: A first power supply network is located in the first cavity. The first power supply network has a first signal line, which includes a first main body segment and a first bent segment. The first main body segment is parallel to the partition wall, and one end of the first bent segment is connected to one end of the first main body segment. The first bent segment bends toward the partition wall relative to the first main body segment. A second power supply network, located in the second cavity, the second power supply network having a second signal line; and An adapter is inserted through the partition wall. One end of the adapter is located in the first cavity and connected to the first bent section, while the other end of the adapter is located in the second cavity and connected to the second signal line.

2. The antenna feeding structure according to claim 1, characterized in that, The first bending segment includes: A first bending segment, one end of which is connected to one end of the first main body segment, the first bending segment bending towards the partition wall relative to the first main body segment; and, The second bending segment has one end connected to the end of the first bending segment away from the first main body segment, and the second bending segment is parallel to the partition wall.

3. The antenna feeding structure according to claim 1 or 2, characterized in that, The length directions of the first cavity and the second cavity are the same; the width direction of the second cavity is along a first direction, the width direction of the first cavity is perpendicular to the first direction, and the first direction is along the thickness direction of the partition wall.

4. The antenna feeding structure according to claim 3, characterized in that, The second signal line includes a second main body segment and a second bent segment. One end of the second bent segment is connected to one end of the second main body segment. The second bent segment is bent relative to the second main body segment and is parallel to the partition wall.

5. The antenna feeding structure according to claim 2, characterized in that, The adapter is located at one end of the second cavity as a first connecting end, and the second signal line is connected to the adapter at one end as a first mating end; one of the first connecting end and the first mating end is provided with a first positioning groove, and the other mates with the first positioning groove.

6. The antenna feeding structure according to claim 5, characterized in that, The adapter is located at one end of the first cavity as a second connection end, and the end of the first signal line connected to the adapter is a second mating end; one of the first connection end and the first mating end is provided with a second positioning groove, and the other mates with the second positioning groove.

7. The antenna feeding structure according to claim 2, characterized in that, The second bending segment is provided with a second positioning groove; the adapter is inserted through the second positioning groove along a first direction, the first direction being along the thickness direction of the partition wall; the adapter has a limiting boss at one end of the first cavity, the limiting boss being located on the side of the second bending segment facing away from the partition wall, and the second positioning groove prevents the limiting boss from passing through.

8. A base station antenna device, characterized in that, Includes the antenna feeding structure according to any one of claims 1-7; The second feed network is a phase-shifting network; the first feed network is a combining network. The cavity module has a plurality of second cavities sequentially separated along a second direction, the second direction being perpendicular to the arrangement direction of the first cavity and the second cavity; the power supply module has a plurality of second power supply networks with different operating frequency bands and a plurality of adapters, the plurality of second power supply networks being arranged one-to-one in the plurality of second cavities; the first power supply network has a plurality of first signal lines; Multiple first signal lines, multiple second signal lines of the second power supply network, and multiple adapters correspond one-to-one; one end of the adapter is connected to the first bent section of the corresponding first signal line, and the other end of the adapter is connected to the corresponding second signal line.

9. The base station antenna device according to claim 8, characterized in that, The number of cavity modules is two, the number of power supply modules is two, and the power supply modules are disposed in the corresponding cavity modules; the two cavity modules are arranged along the second direction.

10. A base station, characterized in that, The base station antenna device includes an antenna radome and any one of claims 8-9, the base station antenna device further includes a radiating element, the radiating element includes a radiating arm, a balun and a feed element, one end of the feed element is connected to the combining network; the antenna radome covers the radiating element.

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