Base station antenna

Abstract

The present disclosure relates to the technical field of communication, and particularly relates to a base station antenna, comprising a radiating unit, a bottom of which is provided with a feed port, the feed port comprises an outer conductor and an inner conductor; a reflector plate, at least part of the feed port passes through the reflector plate; a phase shifter, comprising a cavity and a phase shift circuit, the inner conductor is electrically connected with the phase shift circuit; a transfer component, which is detachably connected with the outer conductor and the cavity respectively to connect the outer conductor and the cavity to ground. In the base station antenna provided by the present disclosure, the outer conductor and the cavity of the phase shifter are electrically connected through the transfer component, the outer conductor and the cavity are connected to ground, the electroplating process treatment and the welding connection of the radiating unit and the phase shifter are avoided, the inner conductor is directly connected with the phase shift circuit, the whole can realize cable-free high-efficiency feeding, which is conducive to realizing environmental protection, simplifying the layout of the feeding network and reducing the assembly difficulty, and can be flexibly applied to the installation between the radiating unit and the phase shifter.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a base station antenna. Background Technology

[0002] In traditional base station antennas, the radiating element and phase shifter are connected via coaxial cables. To reduce weight and cost, both the radiating element and phase shifter are made of aluminum. However, aluminum has poor performance when used for metal welding, so its outer surface needs to be electroplated before being soldered to the coaxial cable with tin wire. However, the electroplating and soldering process is complex, resulting in high costs and being environmentally unfriendly. Furthermore, the coaxial cable connection between the radiating element and phase shifter in array antennas easily leads to problems such as numerous cables, complex assembly, and difficult feed network layout. Summary of the Invention

[0003] To address the aforementioned technical problems, this disclosure provides a base station antenna.

[0004] This disclosure provides a base station antenna, including:

[0005] A radiating unit, wherein a power supply port is provided at the bottom of the radiating unit, and the power supply port includes an outer conductor and an inner conductor;

[0006] A reflector, wherein the radiating element is disposed on one side of the reflector, and at least a portion of the feed port passes through the reflector;

[0007] A phase shifter is located on the side of the reflector away from the radiating unit. The phase shifter includes a cavity and a phase shifting circuit, and the inner conductor is electrically connected to the phase shifting circuit.

[0008] A transfer component, one end of which is detachably electrically connected to the outer conductor and the other end of which is detachably electrically connected to the cavity, for connecting the outer conductor to the cavity and grounding.

[0009] Optionally, the transfer component further includes an adapter plate, which is adaptively bent and connected between the outer conductor and the cavity.

[0010] Optionally, the adapter plate includes a first connecting part and a second connecting part, wherein the first connecting part and the outer conductor are detachably electrically connected by a first connector, and the second connecting part and the cavity are detachably electrically connected by a second connector.

[0011] Optionally, the second connecting part is a U-shaped plate, which is snapped onto the cavity and connected to the cavity via the second connecting member.

[0012] Optionally, the second connector is a bolt.

[0013] Optionally, the first connecting part is an L-shaped bent plate, the bent plate including a first plate corresponding to the bottom of the power supply port and a second plate extending downward along the first plate, the second plate being connected to the U-shaped plate, and the first plate being used to connect the outer conductor and being offset from the U-shaped plate.

[0014] Optionally, the first connector includes a threaded mounting base and a threaded fastener.

[0015] Optionally, the threaded mounting base is located on the side of the outer conductor and is integrally formed with the outer conductor, and the threaded fastener passes through the first connecting portion and is connected to the threaded mounting base.

[0016] Optionally, the radiating unit, the cavity, and the adapter plate are all integrally formed aluminum parts.

[0017] Optionally, the radiation unit includes a first radiation unit and a second radiation unit, which are nested together.

[0018] Optionally, the bottom of the first radiating unit and the bottom of the second radiating unit are both provided with the feed port; the phase shifter includes two phase shifting circuits respectively feeding the first radiating unit and the second radiating unit;

[0019] The inner conductors of the two feed ports pass through the reflector and the cavity respectively and are connected to the corresponding phase-shifting circuits;

[0020] The transfer component also includes an adapter plate, which is adaptively bent and connected between the outer conductor and the cavity; the adapter plate includes a first connecting part and a second connecting part, the first connecting part and the outer conductor are detachably electrically connected by a first connecting member, and the second connecting part and the cavity are detachably electrically connected by a second connecting member; there are two first connecting parts, and the two first connecting parts are respectively connected to the two power supply ports one by one.

[0021] Optionally, the phase shifter further includes a plurality of sidelobe adjustment dielectric plates, with at least one sidelobe adjustment dielectric plate stacked next to each phase shift circuit, and the sidelobe adjustment dielectric plate at least partially overlapping the phase shift circuit.

[0022] Optionally, the sidelobe adjustment dielectric plate is provided on both sides of each phase shifting circuit.

[0023] Optionally, the phase shifter further includes a connecting pin, and each of the sidelobe adjustment medium plates is provided with an opening, and multiple openings are coaxially arranged and interlocked with the connecting pin.

[0024] Optionally, each phase-shifting circuit is provided with a plurality of vias along the extension direction of the phase-shifting circuit, and the connecting pin is inserted into the opening and the vias to connect the phase-shifting circuit and the sidelobe adjustment medium plate.

[0025] Optionally, a through groove is provided on the cavity wall of the phase shifter, and the end of the connecting pin extends to the outside of the phase shifter through the through groove.

[0026] Optionally, the phase shifter is provided with a phase adjustment medium plate for adjusting the downtilt angle of the base station antenna.

[0027] In the base station antenna disclosed herein, a radiating element is disposed on one side of a reflector, and a phase shifter is disposed on the other side. A feed port is disposed at the bottom of the radiating element, and at least part of the feed port passes through the reflector and connects to the phase shifter. The feed port includes an outer conductor and an inner conductor. The phase shifter includes a cavity and a phase shifting circuit, and the inner conductor is connected to the phase shifting circuit. The outer conductor is connected to the phase shifter cavity through a relay component. One end of the relay component is detachably electrically connected to the outer conductor, and the other end is detachably electrically connected to the cavity. By setting up the relay component, the outer conductor and the cavity of the phase shifter can be electrically connected through the relay component, realizing the connection and grounding of the outer conductor and the cavity. This avoids electroplating and welding processes on the radiating element and the phase shifter. The inner conductor is directly connected to the phase shifting circuit. The whole system can achieve high-efficiency, cable-free feeding, which is conducive to environmental protection, simplifies the layout of the feeding network, reduces assembly difficulty, and can be flexibly applied to the installation between the radiating element and the phase shifter. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a base station antenna with a single-frequency radiating element as provided in this disclosure;

[0031] Figure 2 This is a schematic diagram showing the connection between the single-frequency radiation unit and the phase shifter provided in this disclosure.

[0032] Figure 3 A schematic diagram of a transfer component provided in this disclosure;

[0033] Figure 4This is a schematic diagram of a base station antenna with a multi-frequency radiating element as provided in this disclosure;

[0034] Figure 5 This is another structural schematic diagram of the transfer component provided in this disclosure;

[0035] Figure 6 This is a schematic diagram of the base station antenna provided in this disclosure;

[0036] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0037] Figure 8 This is a schematic diagram showing the connection between the phase-shifting circuit and the sidelobe adjustment dielectric plate provided in this disclosure;

[0038] Figure 9 This is a schematic diagram showing the separation of the connecting pin from the sidelobe adjustment medium plate according to an embodiment of this disclosure.

[0039] Among them, 1. Radiation unit; 11. Feed port; 111. Outer conductor; 112. Inner conductor; 12. First radiation unit; 13. Second radiation unit; 2. Reflector; 3. Phase shifter; 31. Cavity; 32. Phase shifting circuit; 33. Side lobe adjustment medium plate; 34. Opening; 35. Connecting pin; 36. Through slot; 37. Phase adjustment medium plate; 4. Transfer component; 41. First plate; 42. Second connecting part; 421. Connecting part body; 422. Side plate; 43. Second plate; 5. First connecting piece; 51. Threaded mounting base; 52. Threaded fastener. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0041] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0042] like Figures 1 to 5 As shown, this disclosure provides a base station antenna, including:

[0043] Radiation unit 1, the bottom of radiation unit 1 is provided with a feed port 11, the feed port 11 includes an outer conductor 111 and an inner conductor 112;

[0044] The reflector 2 and the radiation unit 1 are disposed on one side of the reflector 2, and at least part of the feed port 11 passes through the reflector 2;

[0045] Phase shifter 3 is located on the side of reflector 2 away from radiation unit 1. Phase shifter 3 includes cavity 31 and phase shifting circuit 32. The inner conductor 112 is electrically connected to phase shifting circuit 32.

[0046] The transfer component 4 has one end detachably electrically connected to the outer conductor 111 and the other end detachably electrically connected to the cavity 31, which is used to connect the outer conductor 111 to the cavity 31 and ground.

[0047] In the base station antenna provided in this embodiment, a radiating element 1 is disposed on one side of the reflector 2, and a phase shifter 3 is disposed on the other side. A feed port 11 is disposed at the bottom of the radiating element 1, and at least a portion of the feed port 11 passes through the reflector 2 and is connected to the phase shifter 3. The feed port 11 includes an outer conductor 111 and an inner conductor 112. The phase shifter 3 includes a cavity 31 and a phase shifting circuit 32, and the inner conductor 112 is connected to the phase shifting circuit 32. The outer conductor 111 is connected to the cavity 31 of the phase shifter 3 through a relay component 4. One end of the relay component 4 is detachably electrically connected to the outer conductor 111, and the other end is detachably electrically connected to the cavity 31. By setting up the transfer component 4, the outer conductor 111 and the cavity 31 of the phase shifter 3 can be electrically connected through the transfer component 4, realizing the connection and grounding of the outer conductor 111 and the cavity 31. This avoids the need for electroplating and welding processes on the radiating unit 1 and the phase shifter 3. Furthermore, the inner conductor 112 is directly connected to the phase shifting circuit 32. The whole system can achieve high-efficiency power supply without cables, which is conducive to environmental protection, simplifies the layout of the power supply network, reduces assembly difficulty, and can be flexibly applied to the installation between the radiating unit and the phase shifter.

[0048] In the prior art, in order to avoid electroplating and soldering, a long slot is cut on the metal reflector 2 to directly connect the phase shifter 3 through the metal reflector 2 and the radiation unit 1. This long slot reduces the strength of the metal reflector 2 and makes it easy to deform. In addition, the setting of the long slot results in poor radiation performance of the radiation unit 1.

[0049] In this embodiment, only a through hole for the power supply port 11 needs to be opened on the reflector 2, which effectively reduces the size of the slot on the reflector 2, improves the structural strength of the reflector 2, and ensures the radiation performance of the radiation unit 1, thereby improving the performance of the base station antenna.

[0050] In some embodiments, the aforementioned transfer component 4 further includes an adapter plate, which is adaptively bent and connected between the first connecting portion and the second connecting portion 42. This allows for flexible adaptation to the installation space between the radiating unit and the phase shifter, making it more convenient to use.

[0051] The adapter plate includes a first connecting part and a second connecting part 42. A first connecting member 5 is provided between the first connecting part and the outer conductor 111. The first connecting part and the outer conductor 111 are detachably electrically connected via the first connecting member 5. The second connecting part 42 is detachably electrically connected to the cavity 31 via the second connecting member. The second connecting member is preferably a bolt.

[0052] That is, the relay component 4 includes a first connecting part connected to the outer conductor 111. The first connecting part and the outer conductor 111 are detachably electrically connected via a first connecting member 5, effectively avoiding the electroplating process on the radiation unit 1 with the outer conductor 111, thus simplifying the process, reducing costs, and meeting environmental protection requirements. The relay component 4 also includes a second connecting part 42, which is bolted to the cavity 31 of the phase shifter, achieving an electrical connection between the second connecting part 42 and the cavity 31. This avoids the electroplating process on the phase shifter cavity 31, achieving the effects of simplified process, reduced costs, and compliance with environmental protection requirements. The relay component 4 achieves an electrical connection between the outer conductor 111 and the phase shifter cavity 31.

[0053] The aforementioned radiation unit 1 can be a single-frequency radiation unit 1 or a multi-frequency radiation unit 1. That is, radiation unit 1 can be a low-frequency radiation unit or a high-frequency radiation unit, or radiation unit 1 can include both low-frequency and high-frequency radiation units.

[0054] like Figures 4 to 5 As shown, when the radiation unit 1 includes a low-frequency radiation unit and a high-frequency radiation unit, it can be understood that the radiation unit 1 includes a first radiation unit 12 and a second radiation unit 13, wherein the first radiation unit 12 is a low-frequency radiation unit and the second radiation unit is a high-frequency radiation unit, and the first radiation unit 12 and the second radiation unit 13 are nested together. A feed port 11 is provided at the bottom of both the first radiation unit 12 and the bottom of both the second radiation unit 13; the phase shifter 3 includes two phase shifting circuits that respectively feed the first radiation unit 12 and the second radiation unit 13; the inner conductors 112 of the two feed ports 11 pass through the reflector 2 and the cavity 31 respectively and are connected to the corresponding phase shifting circuits 32; there are two first connection parts, and the two first connection parts are connected one-to-one with the two feed ports 11.

[0055] In other words, when the radiation unit 1 includes a low-frequency radiation unit and a high-frequency radiation unit, both types of radiation units 1 are provided with a power supply port 11 at the bottom. The phase shifter 3 is provided with two phase shifting circuits, namely a high-frequency phase shifting circuit and a low-frequency phase shifting circuit. The inner conductor of the low-frequency radiation unit is connected to the low-frequency phase shifting circuit, and the inner conductor of the high-frequency radiation unit is connected to the high-frequency phase shifting circuit, so as to realize the connection between different radiation units and their corresponding phase shifting circuits.

[0056] The relay component 4 includes two first connecting parts, each corresponding to a feed port 11, to connect each feed port 11 to the relay component 4. That is, the two first connecting parts are connected to the outer conductor 111, forming a current path corresponding to the low-frequency radiation unit and a current path corresponding to the high-frequency radiation unit, thereby ensuring stable current transmission of the base station antenna.

[0057] like Figures 1 to 3 As shown, when the radiation unit 1 is a single-frequency radiation unit 1 of a low-frequency radiation unit or a high-frequency radiation unit, the number of the first connection part is one, which is used to connect the radiation unit 1 to the relay component 4.

[0058] By setting the aforementioned relay component 4, the connection between the single-frequency radiation unit 1, the multi-frequency radiation unit 1 and the phase shifter 3 can be realized by setting one or two first connection parts, thereby improving the versatility and practicality of the device.

[0059] In some embodiments, the first connector 5 includes a threaded mounting base 51 and a threaded fastener 52. By providing the threaded mounting base 51 and the threaded fastener 52, a threaded connection between the first connector and the outer conductor 111 is achieved, and the threaded fastener 52 can achieve electrical connection while being connected to the threaded mounting base 51.

[0060] Specifically, the threaded mounting base 51 is disposed adjacent to the outer conductor 111 and is integrally formed with the outer conductor 111.

[0061] In other words, the threaded mounting base 51 is located next to the outer conductor 111 and is integrally formed with the outer conductor 111. The first connecting part is connected to the threaded mounting base 51 by the threaded fastener 52, realizing the structural connection between the transfer component 4 and the radiation unit 1. At the same time, it realizes the electrical connection between the outer conductor 111 and the transfer component 4, thereby achieving grounding. This effectively avoids the need for electroplating and welding of the radiation unit 1 and the phase shifter 3, simplifies the assembly steps between the power supply port 11 and the phase shifter 3, reduces the assembly difficulty, and improves the assembly efficiency.

[0062] In some embodiments, the second connecting part 42 is a U-shaped plate, which is snapped onto the cavity 31 and connected to the cavity 31 via the aforementioned second connecting member. Specifically, the U-shaped plate includes a connecting part body 421 and two side plates 422 disposed opposite to each other on both sides of the connecting part body 421. The two side plates 422 are disposed opposite to each other on both sides of the phase shifter 3 and are connected to the phase shifter 3 by bolts.

[0063] The second connecting part 42 is provided with two side plates 422, each of which is bolted to the phase shifter 3, thereby improving the stability of the connection between the phase shifter 3 and the transfer component 4.

[0064] In some embodiments, the first connecting portion is an L-shaped bent plate, which includes a first plate 41 corresponding to the bottom of the power supply port and a second plate 43 extending downward along the first plate 41. The second plate 43 is connected to the U-shaped plate, and the first plate 41 is used to connect the outer conductor 111 and is offset from the U-shaped plate. Specifically, in this embodiment, the plane of the first plate 41 is parallel to the plane of the connecting portion body 421, so that there is a set distance between the first connecting portion and the connecting portion body 421. The offset arrangement makes installation more convenient and flexible.

[0065] When the first connecting part is connected to the threaded mounting base 51, the threaded fastener 52 passes through the first connecting part from one side and is threadedly connected to the threaded mounting base 51. In order to form a space for accommodating the bolt head on one side of the first connecting part, the plane of the first connecting part is parallel to the plane of the connecting part body 421, so that there is a set distance between the first connecting part and the connecting part body 421, thereby forming a space for accommodating the bolt head, which facilitates the assembly of the threaded fastener 52 with the threaded mounting base 51.

[0066] The aforementioned radiating element 1, cavity 31, and adapter plate are all integrally formed aluminum components. Specifically, the radiating element 1 includes a radiating arm, a balun, and a base. The outer conductor of the feed port can be integrally formed with the base, and the radiating arm, balun, and base can be integrally formed using a die-casting process. Furthermore, the cavity 31 of the phase shifter 3 and the adapter plate used for relaying are both made of aluminum, which facilitates smooth surface treatment and eliminates the need for electroplating, thus enabling a lightweight and low-cost antenna design. The inner conductor 112 of the feed port 11 in the radiating element 1 can be coupled to the radiating arm, further avoiding electroplating. The phase-shifting circuit 32 can employ an environmentally friendly process such as ion beam copper spraying, or can be made directly from copper.

[0067] like Figure 1 As shown, in some embodiments, the phase shifter 3 is provided with a phase adjustment medium plate 37 for adjusting the downtilt angle of the base station antenna.

[0068] The aforementioned phase shifter 3 includes a cavity, within which a phase shifting circuit 32 and a phase adjustment dielectric plate 37 are disposed. The phase adjustment dielectric plate 37 surrounds the phase shifting circuit 32 and is encapsulated within the cavity. By moving the phase adjustment dielectric plate 37, multiple phase changes can be achieved to realize the electric adjustment of the antenna array downtilt angle.

[0069] The inner conductor 112 of the aforementioned power supply port 11 includes a power supply core, which is electrically connected to the phase shifting circuit 32.

[0070] like Figures 6 to 9As shown, in some embodiments, the phase shifter 3 further includes a plurality of sidelobe adjustment media plates 33, and at least one sidelobe adjustment media plate 33 is stacked on the side of each phase shift circuit 32, and the sidelobe adjustment media plate 33 at least partially overlaps with the phase shift circuit 32.

[0071] The sidelobe adjustment dielectric plate 33 mentioned above achieves its equivalent phase change by covering the area of ​​the phase shifting circuit 32. The sidelobe adjustment dielectric plate 33 is made of a high dielectric constant material.

[0072] Specifically, by adjusting the overlap area between the sidelobe adjustment dielectric plate 33 and the phase shifting circuit 32, the phase of the feed signal to each radiating unit 1 is adjusted within a small range, thereby optimizing its vertical plane sidelobe. The maximum phase change is approximately ±30 degrees. For example, in this embodiment, a four-port phase shifter 3 can be used, connected to four radiating units 1, and has four sidelobe adjustment dielectric plates 33. Each radiating unit 1 can be individually adjusted by adjusting the position of each of the four sidelobe adjustment dielectric plates 33.

[0073] Specifically, a connecting pin 35 is provided inside the phase shifter 3, and an opening 34 is provided on each sidelobe adjustment medium plate 33. Multiple openings 34 are coaxially arranged and are inserted into the connecting pin 35 to limit the position of the sidelobe adjustment medium plate 33.

[0074] To facilitate the adjustment of the position of the sidelobe adjustment medium plate 33, a through groove 36 can be provided on the cavity, and the end of the connecting pin 35 extends to the outside of the phase shifter 3 through the through groove 36. When adjusting the position of the sidelobe adjustment medium plate 33, the position of the sidelobe adjustment medium plate 33 can be adjusted by sliding the connecting pin 35.

[0075] Taking a four-port phase shifter 3 connected to four radiation units 1 as an example, the phase shifter 3 has four sidelobe adjustment dielectric plates 33. Therefore, four through slots 36 are opened on the cavity of the phase shifter 3 to control the four radiation units 1 respectively. This invention can be applied to two or more multi-port phase shifters 3.

[0076] In some embodiments, the sidelobe adjustment medium plate 33 can also be connected and positioned with the phase shifting circuit 32. That is, each phase shifting circuit 32 is provided with a plurality of through holes along the extension direction of the phase shifting circuit 32, and the connecting pin 35 is inserted and engaged with the opening 34 and the through holes to connect the phase shifting circuit 32 and the sidelobe adjustment medium plate 33.

[0077] In this embodiment, when adjusting the position of the sidelobe adjustment medium plate 33, the connecting pin 35 needs to be pulled out, the position of the sidelobe adjustment medium plate 33 needs to be moved, and then the connecting pin 35 needs to be reconnected to the sidelobe adjustment medium plate 33 and the phase shifting circuit 32.

[0078] To increase the adjustment range, a sidelobe adjustment dielectric plate 33 is provided on both sides of each phase shifting circuit 32.

[0079] In other words, each phase-shifting circuit 32 is sandwiched between two sidelobe adjustment dielectric plates 33 to increase the adjustment range of the contact area between the phase-shifting circuit 32 and the sidelobe adjustment dielectric plates 33, thereby increasing the adjustment range of the phase.

[0080] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0081] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A base station antenna, characterized in that, include: A radiating unit, wherein a power supply port is provided at the bottom of the radiating unit, and the power supply port includes an outer conductor and an inner conductor; A reflector, wherein the radiating element is disposed on one side of the reflector, and at least a portion of the feed port passes through the reflector; A phase shifter is located on the side of the reflector away from the radiating unit. The phase shifter includes a cavity and a phase shifting circuit, and the inner conductor is electrically connected to the phase shifting circuit. A transfer component, one end of which is detachably electrically connected to the outer conductor and the other end of which is detachably electrically connected to the cavity, for connecting the outer conductor to the cavity and grounding.

2. The base station antenna according to claim 1, characterized in that, The transfer component also includes an adapter plate, which is adaptively bent and connected between the outer conductor and the cavity.

3. The base station antenna according to claim 2, characterized in that, The adapter plate includes a first connecting part and a second connecting part. The first connecting part and the outer conductor are detachably electrically connected by a first connector, and the second connecting part and the cavity are detachably electrically connected by a second connector.

4. The base station antenna according to claim 3, characterized in that, The second connecting part is a U-shaped plate, which is snapped onto the cavity and connected to the cavity through the second connecting member.

5. The base station antenna according to claim 4, characterized in that, The second connecting component is a bolt.

6. The base station antenna according to claim 4, characterized in that, The first connecting part is an L-shaped bent plate, which includes a first plate corresponding to the bottom of the power supply port and a second plate extending downward along the first plate. The second plate is connected to the U-shaped plate, and the first plate is used to connect the outer conductor and is offset from the U-shaped plate.

7. The base station antenna according to claim 3, characterized in that, The first connector includes a threaded mounting base and a threaded fastener.

8. The base station antenna according to claim 7, characterized in that, The threaded mounting base is located on one side of the outer conductor and is integrally formed with the outer conductor. The threaded fastener passes through the first connecting part and is connected to the threaded mounting base.

9. The base station antenna according to claim 2, characterized in that, The radiation unit, the cavity, and the adapter plate are all integrally formed aluminum parts.

10. The base station antenna according to claim 1, characterized in that, The radiation unit includes a first radiation unit and a second radiation unit, which are nested together.

11. The base station antenna according to claim 10, characterized in that, The bottom of the first radiating unit and the bottom of the second radiating unit are both provided with the power supply port; the phase shifter includes two phase shifting circuits respectively corresponding to the power supply of the first radiating unit and the second radiating unit; The inner conductors of the two feed ports pass through the reflector and the cavity respectively and are connected to the corresponding phase-shifting circuits; The transfer component also includes an adapter plate, which is adaptively bent and connected between the outer conductor and the cavity; the adapter plate includes a first connecting part and a second connecting part, the first connecting part and the outer conductor are detachably electrically connected by a first connecting member, and the second connecting part and the cavity are detachably electrically connected by a second connecting member; there are two first connecting parts, and the two first connecting parts are respectively connected to the two power supply ports one by one.

12. The base station antenna according to any one of claims 1 to 11, characterized in that, The phase shifter also includes multiple sidelobe adjustment dielectric plates, and at least one sidelobe adjustment dielectric plate is stacked next to each phase shift circuit, and the sidelobe adjustment dielectric plate at least partially overlaps with the phase shift circuit.

13. The base station antenna according to claim 12, characterized in that, Each phase-shifting circuit has a sidelobe adjustment dielectric plate on both sides.

14. The base station antenna according to claim 12, characterized in that, The phase shifter also includes a connecting pin, and each of the sidelobe adjustment medium plates is provided with an opening. Multiple openings are coaxially arranged and are inserted into the connecting pin.

15. The base station antenna according to claim 14, characterized in that, Each phase-shifting circuit has multiple vias along its extension direction. The connecting pins are inserted into the openings and vias to connect the phase-shifting circuit and the sidelobe adjustment medium plate.

16. The base station antenna according to claim 15, characterized in that, A through groove is provided on the cavity wall of the phase shifter, and the end of the connecting pin extends to the outside of the phase shifter through the through groove.

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