Phase shifter assembly and base station antenna

Abstract

The invention relates to the technical field of mobile communication antennas, and provides a phase shifter assembly and a base station antennae, and the phase shifter assembly can comprise a metal housing, a power division circuit board, a metal wire, a plastic connection block, a phase shift medium block, and a first guide projection and a first guide groove which are matched with each other. The metal shell comprises a first packaging wall, a second packaging wall, a connecting wall, a top wall, a first opening and a second opening, and the power division circuit board covers the second opening; the metal wire is fixed with the metal shell through the plastic connecting block; the phase shifting medium block can penetrate through the first opening and can slide back and forth in the direction from the first opening to the connecting wall; one of the first guide protrusion and the first guide groove is arranged on the first packaging wall and extends towards the connecting wall along the first opening, and the other one is arranged on the surface, opposite to the first packaging wall, of the phase shifting medium block. According to the phase shifter assembly provided by the embodiment of the invention, the performance stability can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communication antennas, and in particular to a phase shifter component and a base station antenna. Background Art

[0002] In mobile communication network coverage, the electrically tilted base station antenna is one of the key devices for covering the network, and the phase shifter is the most core component of the electrically tilted base station antenna. The performance of the phase shifter directly determines the performance of the electrically tilted antenna, which in turn affects the quality of network coverage. Therefore, the importance of phase shifters in the field of mobile base station antennas is self-evident.

[0003] In the design of conventional dielectric phase shifters, it is generally divided into three components: cavity, transmission line and dielectric plate, and the dielectric plate is assembled in two pieces. However, this causes unstable matching clearance during assembly, resulting in poor consistency of multiple phase shifters. Summary of the invention

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides a phase shifter assembly and a base station antenna.

[0005] In a first aspect, the present application provides a phase shifter assembly, which may include: a metal shell, including a first packaging wall, a second packaging wall, a connecting wall, a top wall, a first opening, and a second opening, wherein the first packaging wall, the top wall, and the second packaging wall are connected in sequence, the first packaging wall and the second packaging wall are arranged opposite to each other, the first opening is surrounded by the first packaging wall, the top wall, and the second packaging wall, the connecting wall is arranged opposite to the first opening, and is respectively connected to the first packaging wall, the top wall, and the second packaging wall, and the second opening is arranged opposite to the top wall; a power splitter circuit board, the power splitter circuit board cover is arranged at the second opening, and the power splitter circuit board and the metal shell jointly define a shielding cavity; a metal wire, the metal wire is arranged in the shielding cavity, and in the direction of the first opening toward the connecting wall. The shielding cavity is provided with a plastic connecting block, the metal conductor includes a first connecting end and a second connecting end, the first connecting end and the second connecting end are both electrically connected to the power dividing circuit board; a phase-shifting dielectric block, the phase-shifting dielectric block can pass through the first opening, and can reciprocate in the direction of the first opening toward the connecting wall, the phase-shifting dielectric block is provided with a phase-shifting groove matched with the metal conductor, and the metal conductor can extend into the phase-shifting groove; a first guiding protrusion and a first guiding groove that cooperate with each other, one of the first guiding protrusion and the first guiding groove is provided on the first packaging wall, and extends along the first opening toward the connecting wall, and the other is provided on the surface of the phase-shifting dielectric block opposite to the first packaging wall.

[0006] In this way, by fixing the metal wire and the metal shell together through the plastic connecting block, the instability of the fitting clearance between the metal wire and the metal shell when being clamped can be reduced, which leads to poor consistency of multiple phase shifters. By providing the first guide protrusion and the first wire groove that cooperate with each other, the stability of the phase shifting medium block during the sliding process can be guaranteed, thereby improving the performance stability of the phase shifter assembly.

[0007] In some embodiments of the present application, the phase shifter assembly further includes: a second guide protrusion and a second guide groove that cooperate with each other, one of the second guide protrusion and the second guide groove is arranged on the second packaging wall and extends along the first opening toward the connecting wall, and the other is arranged on the surface of the phase shifting medium block opposite to the second packaging wall.

[0008] In some embodiments of the present application, a ground pin is provided on the circumferential edge of the second opening, and the ground pin is electrically connected to the power division circuit board.

[0009] In some embodiments of the present application, the phase-shifting medium block is further provided with a driving connection portion; the phase shifter assembly comprises: a driving assembly, the driving assembly is drivingly connected to the driving connection portion and is used to drive the phase-shifting medium block to slide.

[0010] In some embodiments of the present application, the metal wire includes a plurality of wire units, and in a direction from the first opening toward the connecting wall, the plurality of wire units are connected end to end in sequence.

[0011] In some embodiments of the present application, the metal wire includes a first sub-wire and a second sub-wire, and the first sub-wire and the second sub-wire both extend along the first opening toward the connecting wall; wherein, an end of the first sub-wire close to the first opening is formed as a first connecting end, an end of the second sub-wire close to the first opening is formed as a second connecting end, and an end of the first sub-wire close to the connecting wall is connected to an end of the second sub-wire close to the connecting wall.

[0012] In some embodiments of the present application, one of the plastic connecting block and the power dividing circuit board is provided with a positioning pin, and the other is provided with a positioning hole that cooperates with the positioning pin.

[0013] In some embodiments of the present application, the phase-shifting dielectric block includes: a matching groove, wherein the matching groove is formed by a surface of one side of the phase-shifting dielectric block facing the power divider circuit board being recessed toward the top wall, and the phase-shifting groove penetrates the matching groove. When the metal wire is passed through the matching groove, a portion of the metal wire corresponding to the matching groove is exposed to the phase-shifting dielectric block.

[0014] In some embodiments of the present application, the number of the matching grooves may be multiple.

[0015] In a second aspect, the present application also provides a base station antenna, which may include a plurality of phase shifter components described in any of the above schemes.

[0016] Among them, the technical effects brought about by any design scheme in the second aspect can refer to the technical effects brought about by different design methods in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic diagram of a phase shifter assembly provided for some embodiments of the present application;

[0020] Figure 2 for Figure 1 An exploded view of the phase shifter assembly shown in ;

[0021] Figure 3 for Figure 1 A cross-sectional view of the phase shifter assembly shown in ;

[0022] Figure 4 for Figure 1 A cross-sectional view of the phase shifter assembly shown in another direction;

[0023] Figure 5 A schematic diagram of a metal wire provided in some embodiments of the present application;

[0024] Figure 6 Schematic diagram of metal wires provided for other embodiments of the present application;

[0025] Figure 7 Schematic diagram of metal wires provided for some other embodiments of the present application;

[0026] Figure 8 A schematic diagram of the phase tolerance of the phase shifter assembly provided in this application.

[0027] Reference numerals:

[0028] 100. Phase shifter assembly;

[0029] 110, metal shell; 111, first packaging wall; 112, second packaging wall; 113, connecting wall; 114, top wall; 115, first opening; 116, second opening; 1161, ground pin; 117, first guide protrusion; 118, second guide protrusion;

[0030] 120. power splitter circuit board; 121. soldering pad; 122. positioning hole;

[0031] 130, metal wire; 131, first connection end; 132, second connection end; 133, wire unit; 134, first sub-wire; 135, second sub-wire;

[0032] 140. Plastic connecting block; 141. Positioning pin;

[0033] 150. Phase-shifting medium block; 151. Phase-shifting groove; 152. First guide groove; 153. Second guide groove; 154. Driving connection part; 155. Matching groove. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] In mobile communication network coverage, the electrically tilted base station antenna is one of the key devices for covering the network, and the phase shifter is the most core component of the electrically tilted base station antenna. The performance of the phase shifter directly determines the performance of the electrically tilted antenna, which in turn affects the quality of network coverage. Therefore, the importance of phase shifters in the field of mobile base station antennas is self-evident.

[0037] In the design of conventional dielectric phase shifters, it is generally divided into three components: cavity, transmission line and dielectric plate, and the dielectric plate is assembled in two pieces. However, this causes unstable matching clearance during assembly, resulting in poor consistency of multiple phase shifters.

[0038] In order to solve the above technical problems, the present application provides a base station antenna, which includes a plurality of phase shifter components 100.

[0039] For details, please refer to Figures 1 to 3 , Figure 1A schematic diagram of a phase shifter assembly 100 provided in some embodiments of the present application, Figure 2 for Figure 1 An exploded view of the phase shifter assembly 100 is shown in FIG. Figure 3 for Figure 1 The phase shifter assembly 100 may include: a metal housing 110, a power splitter circuit board 120, a metal wire 130, a plastic connecting block 140, a phase shifting medium block 150, and a first guide protrusion 117 and a first guide groove 152 that cooperate with each other.

[0040] See also Figure 3 and Figure 4 , Figure 4 for Figure 1 The metal shell 110 may include a first packaging wall 111, a second packaging wall 112, a connecting wall 113, a top wall 114, a first opening 115, and a second opening 116. The first packaging wall 111, the top wall 114, and the second packaging wall 112 are sequentially connected, the first packaging wall 111 and the second packaging wall 112 are arranged opposite to each other, the first opening 115 is surrounded by the first packaging wall 111, the top wall 114, and the second packaging wall 112, the connecting wall 113 is arranged opposite to the first opening 115, and is respectively connected to the first packaging wall 111, the top wall 114, and the second packaging wall 112, and the second opening 116 is arranged opposite to the top wall 114.

[0041] In some embodiments, the first packaging wall 111, the second packaging wall 112, the connecting wall 113 and the top wall 114 are all formed in a plate shape, and the first packaging wall 111, the second packaging wall 112, the connecting wall 113 and the top wall 114 surround a rectangular shape, the first opening 115 is formed as an open opening on one side of the rectangular shape, and the second opening 116 is formed as an open opening on the other side of the rectangular shape.

[0042] In other embodiments, the first packaging wall 111, the second packaging wall 112 and the top wall 114 can be formed into an arc shape, the first packaging wall 111, the second packaging wall 112 and the top wall 114 are arranged to form an arc-shaped side wall, the connecting wall 113 is formed into a plate shape, blocking an open opening at one end of the arc-shaped side wall, the first opening 115 is an open opening at the other end of the arc-shaped side wall, and the second opening 116 is an open opening on the side of the arc-shaped side wall.

[0043] Please continue reading Figure 3 and Figure 4 , and refer to Figure 1The power splitter circuit board 120 is covered in the second opening 116, and the power splitter circuit board 120 and the metal shell 110 together define a shielding cavity. The shielding cavity can shield electromagnetic signals. Specifically, the circumferential edge of the second opening 116 of the metal shell 110 is provided at a grounding pin 1161, and the grounding pin 1161 is electrically connected to the power splitter circuit board 120 to achieve grounding of the metal shell 110.

[0044] For details, please continue to refer to Figure 1 and Figure 3 The power splitter circuit board 120 is provided with a pad 121 that matches the ground pin 1161, and the ground pin 1161 is electrically connected to the power splitter circuit board 120 through the pad 121. In a specific implementation process, the number of the ground pins 1161 can be multiple, and the multiple ground pins 1161 are arranged at intervals in the circumferential direction of the second opening 116, and the multiple ground pins 1161 are all electrically connected to the power splitter circuit board 120.

[0045] The metal wire 130 is disposed in the shielding cavity. The metal wire 130 is disposed in a direction from the first opening 115 toward the connecting wall 113 (eg Figure 3 The metal wire 130 extends in the front-to-back direction (shown in FIG. 1 ), and includes a first connection end 131 and a second connection end 132. The first connection end 131 and the second connection end 132 are both electrically connected to the power division circuit board 120.

[0046] Specifically, a welding pad that cooperates with the first connection end 131 and the second connection end 132 is provided on the power division circuit board 120 , and the first connection end 131 and the second connection end 132 are electrically connected to the power division circuit board 120 through the welding pad 121 .

[0047] Please continue reading Figure 2 and Figure 3 The plastic connecting block 140 is arranged in the shielding cavity, and the metal wire 130 is fixed to the metal shell 110 through the plastic connecting block 140. Specifically, during the assembly of the metal wire 130 and the metal shell 110, the plastic connecting block 140 is injection molded to the connection between the metal wire 130 and the metal shell 110 through an injection molding process, so that the metal wire 130, the metal shell 110 and the plastic connecting block 140 are formed into one body. This can avoid the situation in the prior art that the metal wire 130, the metal shell 110 and the plastic connecting block 140 are unstable in the assembly gap due to the snap-fit ​​assembly during use, resulting in poor consistency of multiple phase shifter assemblies 100, effectively controlling the assembly error of the phase shifter assembly 100 and improving the performance stability of the phase shifter assembly 100.

[0048] For details, please refer to Figure 3There are two plastic connecting blocks 140, one of which cooperates with the first connecting end 131 of the metal wire 130, and the first connecting end 131 passes through one of the plastic connecting blocks 140 to be electrically connected to the power division circuit board 120, and the other cooperates with the second connecting end 132 of the metal wire 130, and the second connecting end 132 passes through the other plastic connecting block 140 to be electrically connected to the power division circuit board 120.

[0049] The phase-shifting dielectric block 150 can pass through the first opening 115 and can slide back and forth in the direction from the first opening 115 to the connecting wall 113. The phase-shifting dielectric block 150 is provided with a phase-shifting groove 151 that matches the metal wire 130. The metal wire 130 can extend into the phase-shifting groove 151. It should be noted that the phase-shifting groove 151 at least includes a first opening toward the connecting wall 113 and a second opening toward the power dividing circuit board 120. In this way, the metal wire 130 can move in the phase-shifting groove 151, and at the same time, the first connecting end 131 and the second connecting end 132 of the metal wire 130 can be avoided. It can be understood that the sliding of the phase-shifting dielectric block 150 can cause a phase difference in the strip line formed by the metal wire 130 in the shielding cavity.

[0050] The first guide protrusion 117 and the first guide groove 152 that cooperate with each other may be, see Figure 4 The first guide protrusion 117 is provided on the first packaging wall 111 and extends along the first opening 115 toward the connecting wall 113, and the first guide groove 152 is provided on the surface of the phase shifting dielectric block 150 opposite to the first packaging wall 111. Alternatively, the first guide groove 152 is provided on the first packaging wall 111 and extends along the first opening 115 toward the connecting wall 113, and the first guide protrusion 117 is provided on the surface of the phase shifting dielectric block 150 opposite to the first packaging wall 111.

[0051] Therefore, by providing the first guide protrusion 117 and the first wire groove that cooperate with each other, a guide can be provided for the phase shifting dielectric block 150 during sliding, thereby ensuring the stability of the phase shifting dielectric block 150 during sliding, reducing the shaking of the phase shifting dielectric block 150 during sliding, and improving the performance stability of the phase shifter assembly 100.

[0052] For further information, please refer to Figure 4The phase shifter assembly 100 may further include a second guide protrusion 118 and a second guide groove 153 that cooperate with each other. The second guide protrusion 118 may be provided on the second packaging wall 112 and extend along the first opening 115 toward the connecting wall 113, and the second guide groove 153 may be provided on the surface of the phase shifting dielectric block 150 opposite to the second packaging wall 112. Alternatively, the second guide groove 153 may be provided on the second packaging wall 112 and extend along the second opening 116 toward the connecting wall 113, and the second guide protrusion 118 may be provided on the surface of the phase shifting dielectric block 150 opposite to the second packaging wall 112.

[0053] Therefore, since the first guide protrusion 117 and the first guide groove 152 that match each other, and the second guide protrusion 118 and the second guide groove 153 that match each other are arranged at positions corresponding to the first packaging wall 111 and the second packaging wall 112, the stability of the phase shifting dielectric block 150 during the movement can be further ensured, the sliding of the phase shifting dielectric block 150 can be reduced, and the performance stability of the phase shifter assembly 100 can be improved.

[0054] For further information, please refer to Figure 4 The first guide groove 152 and the second guide groove 153 can be symmetrically arranged, and the first guide protrusion 117 and the second guide protrusion 118 can be symmetrically arranged.

[0055] In some embodiments of the present application, the phase-shifting medium assembly may further include a driving assembly, which is used to drive the phase-shifting medium block 150 to slide. Specifically, a driving connection portion 154 is provided at one end of the phase-shifting medium block 150 away from the connecting wall 113, and the driving assembly is transmission-connected to the driving connection portion 154 to drive the phase-shifting medium block 150 to slide.

[0056] In some embodiments of this application, please refer to Figure 5 , Figure 5 Schematic diagram of metal wire 130 provided in some embodiments of the present application. Metal wire 130 can be formed into a straight line shape, extending from first opening 115 to the vicinity of connecting wall 113 in sequence, with first connecting end 131 close to first opening 115 and second connecting end 132 close to connecting wall 113.

[0057] In other embodiments of the present application, please refer to Figure 6 , Figure 6 Schematic diagram of metal wire 130 provided in some other embodiments of the present application. In order to obtain a larger phase shift, the metal wire 130 may include a first sub-wire 134 and a second sub-wire 135. The first sub-wire 134 and the second sub-wire 135 both extend from the first opening 115 toward the connecting wall 113 (for example, Figure 6 The front-to-rear direction shown in FIG. 1 extends.

[0058] Among them, one end of the first sub-conductor 134 close to the first opening 115 is formed as a first connecting end 131, and one end of the second sub-conductor 135 close to the first opening 115 is formed as a second connecting end 132. One end of the first sub-conductor 134 close to the connecting wall 113 is connected to one end of the second sub-conductor 135 close to the connecting wall 113, that is, the metal conductor 130 extends from the first opening 115 toward the connecting wall 113, and then extends from the connecting wall 113 toward the first opening 115, thereby extending the length of the metal conductor 130 in the shielding cavity, thereby obtaining a larger phase shift.

[0059] In some other embodiments of the present application, please refer to Figure 7 , Figure 7 Schematic diagram of metal wire 130 provided for some other embodiments of the present application. In order to obtain a larger phase shift, the metal wire 130 may include a plurality of wire units 133, and the plurality of wire units 133 are connected end to end in sequence in the direction from the first opening 115 toward the connecting wall 113. The wire units 133 are formed into an inverted "m" structure. That is, the metal wire 130 extends in a wavy manner from the first opening 115 toward the connecting wall 113, with the first connecting end 131 close to the first opening 115 and the second connecting end 132 close to the second opening 116.

[0060] In some embodiments of this application, please continue to refer to Figure 2 One of the plastic connecting block 140 and the power dividing circuit board 120 is provided with a positioning pin 141, and the other is provided with a positioning hole 122 matched with the positioning pin 141, so as to realize the positioning between the metal shell 110 and the power dividing circuit board 120 in turn.

[0061] For details, please refer to Figure 2 , the plastic connection block 140 may be provided with a positioning pin 141, and the power division circuit board 120 may be provided with a positioning hole 122. Alternatively, the plastic connection block 140 may be provided with a positioning hole 122, and the power division circuit board 120 may be provided with a positioning pin 141.

[0062] In some embodiments of this application, please refer to Figure 2 and Figure 3 In order to achieve impedance matching during the phase shifting process, a matching groove 155 can be provided at one end of the phase shifting dielectric block 150 close to the connecting wall 113. The matching groove 155 is formed by a surface of the phase shifting dielectric block 150 facing the power dividing circuit board 120 and being recessed toward the top wall 114. The phase shifting groove 151 passes through the matching groove 155. When the metal wire 130 passes through the matching groove 155, the portion of the metal wire 130 corresponding to the matching groove 155 is exposed to the phase shifting dielectric block 150.

[0063] Furthermore, in order to expand the width of the phase shifter, a plurality of matching grooves 155 may be provided on the phase shift dielectric block 150 to achieve multi-level matching.

[0064] In summary, in the specific experimental process, the phase shifter assembly 100 provided by the present application has significantly improved stability, especially in phase. Tolerance analysis is performed on the design, that is, the phase shift dielectric block 150 shakes up and down and left and right in the shielding cavity. Figure 8 , Figure 8 This is a schematic diagram of the phase tolerance of the phase shifter assembly 100 provided in the present application, wherein simulation data shows that the designed phase tolerance of the phase shifter assembly 100 of the present invention is ±2.5°, that is, in a large-scale array, the maximum phase difference between multiple phase shifter assemblies 100 is within 5°.

[0065] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "center", "up", "down", "front", "back", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0067] In the description of the embodiments of the present invention, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0068] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0069] In the description of the embodiments of the present invention, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0070] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be 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 the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A phase shifter assembly, characterized in that: include: A metal shell, comprising a first packaging wall, a second packaging wall, a connecting wall, a top wall, a first opening and a second opening, wherein the first packaging wall, the top wall and the second packaging wall are connected in sequence, the first packaging wall and the second packaging wall are arranged opposite to each other, the first opening is surrounded by the first packaging wall, the top wall and the second packaging wall, the connecting wall is arranged opposite to the first opening and is respectively connected to the first packaging wall, the top wall and the second packaging wall, and the second opening is arranged opposite to the top wall; A power division circuit board, wherein the power division circuit board is covered in the second opening, and the power division circuit board and the metal shell together define a shielding cavity; A metal wire, the metal wire is arranged in the shielding cavity and extends in the direction of the first opening toward the connecting wall, the metal wire includes a first connecting end and a second connecting end, and the first connecting end and the second connecting end are both electrically connected to the power dividing circuit board; A connecting block, wherein the connecting block is disposed in the shielding cavity, and the metal wire is fixed to the metal shell through the connecting block; a phase-shifting dielectric block, the phase-shifting dielectric block being able to pass through the first opening and being able to reciprocate in a direction from the first opening toward the connecting wall, the phase-shifting dielectric block being provided with a phase-shifting groove cooperating with the metal wire, the metal wire being able to extend into the phase-shifting groove; A first guide protrusion and a first guide groove cooperate with each other, one of which is arranged on the first packaging wall and extends along the first opening toward the connecting wall, and the other is arranged on the surface of the phase-shifting medium block opposite to the first packaging wall.

2. The phase shifter assembly according to claim 1, characterized in that: Also includes: A second guide protrusion and a second guide groove cooperate with each other, one of which is arranged on the second packaging wall and extends along the first opening toward the connecting wall, and the other is arranged on the surface of the phase shifting medium block opposite to the second packaging wall.

3. The phase shifter assembly according to claim 1, characterized in that A ground pin is provided on the circumferential edge of the second opening, and the ground pin is electrically connected to the power division circuit board.

4. The phase shifter assembly according to claim 1, characterized in that: The phase-shifting medium block is also provided with a driving connection portion; The phase shifter assembly comprises: a driving assembly, which is drivingly connected to the driving connection part and is used to drive the phase shifting medium block to slide.

5. The phase shifter assembly according to claim 1, characterized in that: The metal wire includes a plurality of wire units, and in a direction from the first opening toward the connecting wall, the plurality of wire units are connected end to end in sequence.

6. The phase shifter assembly according to claim 1, characterized in that: The metal wire includes a first sub-wire and a second sub-wire, and the first sub-wire and the second sub-wire both extend along the first opening toward the connecting wall; Among them, one end of the first sub-conductor close to the first opening is formed as a first connecting end, one end of the second sub-conductor close to the first opening is formed as a second connecting end, and one end of the first sub-conductor close to the connecting wall is connected to one end of the second sub-conductor close to the connecting wall.

7. The phase shifter assembly according to claim 1, characterized in that One of the plastic connecting block and the power dividing circuit board is provided with a positioning pin, and the other is provided with a positioning hole matched with the positioning pin.

8. The phase shifter assembly according to claim 1, characterized in that The phase shifting medium block comprises: A matching groove, wherein the matching groove is formed by the side surface of the phase-shifting medium block facing the power divider circuit board being recessed toward the top wall, and the phase-shifting groove passes through the matching groove. When the metal wire is passed through the matching groove, the portion of the metal wire corresponding to the matching groove is exposed to the phase-shifting medium block.

9. The phase shifter assembly according to claim 8, characterized in that The number of the matching grooves can be multiple.

10. A base station antenna, characterized in that: The invention comprises a plurality of phase shifter assemblies according to any one of claims 1 to 9.

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