Phase shifter assembly and base station antenna

Abstract

The present application relates to the technical fields of mobile communication antenna, and provides a phase shifter assembly and a base station antenna, the phase shifter assembly can include: a metal shell, a power division circuit board, a metal wire, a plastic connecting block, a phase shifting medium block and a first guide protrusion and a first guide groove matched with each other, the metal shell includes 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 is covered in the second opening; the metal wire is fixed with the metal shell through the plastic connecting block; the phase shifting medium block can pass through the first opening and reciprocally slide in the direction of the first opening towards the connecting wall; one of the first guide protrusion and the first guide groove is arranged on the first packaging wall and extends in the direction of the first opening towards the connecting wall, and the other is arranged on the surface of the phase shifting medium block opposite to the first packaging wall. According to the phase shifter assembly provided in the embodiment, 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 tunable base station antenna is one of the key devices for network coverage, and the phase shifter is the most core component of the electrically tunable base station antenna. The performance of the phase shifter directly determines the performance of the electrically tunable 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] Conventional dielectric phase shifter designs typically consist of three components: a cavity, a transmission line, and a dielectric plate. The dielectric plate is typically assembled from two pieces. This results in unstable clearances during assembly, leading to poor consistency across 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, 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 in 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 is in the direction of the first opening toward the connecting wall. The shielding cavity further includes a first connection end and a second connection end, wherein the first connection end and the second connection end are both electrically connected to the power dividing circuit board; a plastic connection block, wherein the plastic connection block is arranged in the shielding cavity, and the metal wire is fixed to the metal shell through the plastic connection block; a phase-shifting dielectric block, wherein the phase-shifting dielectric block can pass through the first opening and can slide back and forth in the direction of the first opening toward the connecting wall, and the phase-shifting dielectric block is provided with a phase-shifting groove that cooperates with the metal wire, and the metal wire can extend into the phase-shifting groove; a first guide protrusion and a first guide groove that cooperate with each other, wherein one of the first guide protrusion and the first guide groove 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 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 unstable fitting clearance between the metal wire and the metal shell during the clamping connection can be reduced, which can lead to poor consistency among 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 dielectric block during the sliding process can be ensured, 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, wherein one of the second guide protrusion and the second guide groove is provided on the second 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 second packaging wall.

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

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

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

[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, the end of the first sub-wire close to the first opening is formed as a first connecting end, and the end of the second sub-wire close to the first opening is formed as a second connecting end, and the end of the first sub-wire close to the connecting wall is connected to the 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 divider 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 the phase-shifting dielectric block on one side facing the power divider circuit board and recessed toward the top wall, and the phase-shifting groove penetrates 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 dielectric block.

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

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

[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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 in 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 Schematic diagram of metal wires provided in some embodiments of the present application;

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

[0025] Figure 7 Schematic diagrams of metal wires provided in 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 housing; 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. Solder 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 dielectric block; 151. Phase-shifting groove; 152. First guide groove; 153. Second guide groove; 154. Drive connection portion; 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, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[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 the embodiments.

[0036] In mobile communication network coverage, the electrically tunable base station antenna is one of the key devices for network coverage, and the phase shifter is the most core component of the electrically tunable base station antenna. The performance of the phase shifter directly determines the performance of the electrically tunable 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] Conventional dielectric phase shifter designs typically consist of three components: a cavity, a transmission line, and a dielectric plate. The dielectric plate is typically assembled from two pieces. This results in unstable clearances during assembly, leading to poor consistency across 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 1Schematic 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, metal wires 130, a plastic connecting block 140, a phase shifting dielectric 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 is a cross-sectional view of the phase shifter assembly 100 in another direction. The metal housing 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 disposed opposite each other. The first opening 115 is enclosed by the first packaging wall 111, the top wall 114, and the second packaging wall 112. The connecting wall 113 is disposed opposite the first opening 115 and is connected to the first packaging wall 111, the top wall 114, and the second packaging wall 112, respectively. The second opening 116 is disposed opposite 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 are arranged to form a rectangular shape, and 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, and 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 to block the open opening at one end of the arc-shaped side wall. The first opening 115 is the open opening at the other end of the arc-shaped side wall, and the second opening 116 is the 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 housed within the second opening 116. Together, the power splitter circuit board 120 and the metal housing 110 define a shielding cavity. This shielding cavity shields electromagnetic signals. Specifically, a grounding pin 1161 is located along the circumferential edge of the second opening 116 of the metal housing 110. This grounding pin 1161 is electrically connected to the power splitter circuit board 120, thereby grounding the metal housing 110.

[0044] For details, please refer to Figure 1 and Figure 3 The power splitter circuit board 120 is provided with a soldering pad 121 that cooperates with the grounding pin 1161. The grounding pin 1161 is electrically connected to the power splitter circuit board 120 via the soldering pad 121. In a specific implementation, the number of grounding pins 1161 can be multiple, and the multiple grounding pins 1161 are arranged at intervals along the circumference of the second opening 116. The multiple grounding 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 . Both the first connection end 131 and the second connection end 132 are electrically connected to the power splitter 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 splitter circuit board 120 , and the first connection end 131 and the second connection end 132 are electrically connected to the power splitter 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 unstable assembly gap caused by the snap-fit ​​assembly of the metal wire 130, the metal shell 110 and the plastic connecting block 140 during use in the prior art, which leads to poor consistency of multiple phase shifter assemblies 100. This effectively controls the assembly error of the phase shifter assembly 100 and improves 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 splitter 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 splitter circuit board 120.

[0049] The phase-shifting dielectric block 150 can pass through the first opening 115 and slide back and forth in the direction from the first opening 115 toward the connecting wall 113. The phase-shifting dielectric block 150 is provided with a phase-shifting groove 151 that mates with the metal conductor 130. The metal conductor 130 can extend into the phase-shifting groove 151. It should be noted that the phase-shifting groove 151 includes at least a first opening facing the connecting wall 113 and a second opening facing the power divider circuit board 120. This allows the metal conductor 130 to move within the phase-shifting groove 151 while simultaneously avoiding the first and second connecting ends 131, 132 of the metal conductor 130. It can be understood that the sliding of the phase-shifting dielectric block 150 can produce a phase difference in the stripline formed by the metal conductors 130 within the shielding cavity.

[0050] The first guide protrusion 117 and the first guide groove 152 that cooperate with each other can 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 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 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 the sliding process, thereby ensuring the stability of the phase shifting dielectric block 150 during the sliding process, reducing the shaking of the phase shifting dielectric block 150 during the sliding process, 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 enclosure wall 112 and extend along the first opening 115 toward the connecting wall 113, while the second guide groove 153 is provided on the surface of the phase shifting dielectric block 150 that faces the second enclosure wall 112. Alternatively, the second guide groove 153 may be provided on the second enclosure wall 112 and extend along the second opening 116 toward the connecting wall 113, while the second guide protrusion 118 is provided on the surface of the phase shifting dielectric block 150 that faces the second enclosure wall 112.

[0053] Therefore, since the first guide protrusion 117 and the first guide groove 152 that cooperate with each other, and the second guide protrusion 118 and the second guide groove 153 that cooperate with each other are provided 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 movement can be further ensured, and the sliding of the phase shifting dielectric block 150 can be reduced, thereby improving the performance stability of the phase shifter assembly 100.

[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. The driving assembly is in transmission connection with 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 this 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 (e.g. Figure 6 The front-to-back direction shown in FIG.

[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 this application, please refer to Figure 7 , Figure 7 Schematic diagrams of metal wires 130 provided in further embodiments of the present application. To achieve a greater phase shift, metal wire 130 may include multiple wire units 133, which are sequentially connected end to end in the direction from first opening 115 toward connecting wall 113. The wire units 133 are formed into an inverted "M" structure. That is, metal wire 130 extends in a wavy pattern from first opening 115 toward connecting wall 113, with first connection end 131 proximal to first opening 115 and second connection end 132 proximal to 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 splitter circuit board 120 is provided with a positioning pin 141, and the other is provided with a positioning hole 122 that cooperates with the positioning pin 141, thereby realizing the positioning between the metal shell 110 and the power splitter circuit board 120 in turn.

[0061] For details, please refer to Figure 2 Alternatively, the plastic connecting block 140 may be provided with a positioning pin 141 and the power splitter circuit board 120 may be provided with a positioning hole 122. Alternatively, the plastic connecting block 140 may be provided with a positioning hole 122 and the power splitter 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 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 near the connecting wall 113. The matching groove 155 is formed by a surface of the phase shifting dielectric block 150 facing the power splitter circuit board 120 that is recessed toward the top wall 114. The phase shifting groove 151 extends through the matching groove 155. When the metal wire 130 is inserted into 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 a significant improvement in stability, especially in phase. A tolerance analysis is performed on the design, that is, the phase shift dielectric block 150 swings 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 this application. As shown in simulation data, 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 should be understood that the terms "center", "up", "down", "front", "back", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such 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 encompasses any and all possible combinations of one or more of the listed items. The term "and / or" describes an association relationship between associated objects, indicating that three possible relationships can exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in the present invention generally indicates that the associated objects 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" and "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 variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0070] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. 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 the present invention. Therefore, the present invention is not intended to be limited to the embodiments described herein, but is to be construed in the widest manner 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 sequentially connected, the first packaging wall and the second packaging wall are disposed opposite each other, the first opening is enclosed by the first packaging wall, the top wall, and the second packaging wall, the connecting wall is disposed 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 disposed opposite to the top wall; A power splitter circuit board, the power splitter circuit board cover is arranged in the second opening, and the power splitter circuit board and the metal shell together define a shielding cavity; a metal wire disposed in the shielding cavity and extending from the first opening toward the connecting wall, the metal wire including a first connecting end and a second connecting end, both of which are electrically connected to the power splitter circuit board; a connecting block, the connecting block being arranged in the shielding cavity, the metal wire being fixed to the metal shell via the connecting block; a phase-shifting dielectric block, the phase-shifting dielectric block being capable of passing through the first opening and being capable of reciprocatingly sliding 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 capable of extending into the phase-shifting groove; A first guide protrusion and a first guide groove cooperate with each other, one of which 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.

2. The phase shifter assembly according to claim 1, wherein: Also includes: A second guide protrusion and a second guide groove cooperate with each other, one of which is provided on the second 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 second packaging wall.

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

4. The phase shifter assembly according to claim 1, wherein: The phase-shifting dielectric block is further provided with a driving connection portion; The phase shifter assembly includes a driving assembly, which is in driving connection with the driving connection portion and is used to drive the phase shifting medium block to slide.

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

6. The phase shifter assembly according to claim 1, wherein: 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; The end of the first sub-conductor close to the first opening is formed as a first connecting end, the end of the second sub-conductor close to the first opening is formed as a second connecting end, and the end of the first sub-conductor close to the connecting wall is connected to the end of the second sub-conductor close to the connecting wall.

7. The phase shifter assembly according to claim 1, wherein: One of the 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, wherein: The phase-shifting dielectric block comprises: A matching groove is formed by a surface of the phase-shifting dielectric block facing the power divider circuit board and recessed toward the top wall. 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 dielectric block.

9. The phase shifter assembly according to claim 8, wherein: There are multiple matching grooves.

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

Images