Phase shifter, base station antenna, and base station

Abstract

The application discloses a phase shifter, a base station antenna and a base station, wherein the phase shifter comprises a cavity and a phase shifting assembly; the cavity comprises a top wall and a bottom wall which are arranged at intervals along a first direction, and a first side wall and a second side wall which are arranged at intervals along a second direction, the first side wall, the top wall, the second side wall and the bottom wall are connected end to end to enclose a containing space, and the phase shifting assembly is arranged in the containing space; the first side wall is recessed towards the containing space, and a wire slot is formed on the outer surface of the first side wall, the wall surface of the wire slot is provided with a wire hole, and the wire hole is in communication with the containing space. The application can solve the problems of large overall quality of some parts of the phase shifter in the prior art, serious material waste and the like.

Description

Technical Field

[0001] The present application belongs to the technical field of wireless devices, and specifically relates to a phase shifter, a base station antenna, and a base station. Background Art

[0002] With the development of antenna technology, multi-band smart antennas will become the future development trend of antennas. This will lead to the continuous expansion of antenna scale, the increase in the number of channels and phase shifters, but the decreasing size of antennas. Among them, phase shifters are the core components of antennas, and increasing their number will lead to an increase in the overall quality of the antenna.

[0003] However, in the related art, when laying out the phase shifter, the mass of the phase shifter itself is not considered to be reduced, resulting in a large overall mass of some components in the phase shifter during the design or manufacturing process, causing serious material waste. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a phase shifter, a base station antenna, and a base station, which can solve the problems in the related art of the overall mass of some components of the phase shifter being large and the serious waste of materials.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of the present application provides a phase shifter, comprising: a cavity and a phase shift component;

[0007] The cavity includes a top wall and a bottom wall spaced apart along a first direction, and a first side wall and a second side wall spaced apart along a second direction, wherein the first side wall, the top wall, the second side wall and the bottom wall are connected end to end to form a receiving space, and the phase shifting assembly is disposed in the receiving space;

[0008] The first side wall is concave toward the accommodating space, and a wire groove is formed on the outer surface of the first side wall. A wire hole is provided on the wall surface of the wire groove, and the wire hole is communicated with the accommodating space.

[0009] An embodiment of the present application also provides a base station antenna, comprising a plurality of stacked phase shifters and a plurality of supports, each of the phase shifters being connected to at least one of the supports, and two adjacent phase shifters being connected via their respective supports, and the phase shifters being the above-mentioned phase shifters.

[0010] An embodiment of the present application also provides a base station, including the above-mentioned base station antenna.

[0011] In the embodiment of the present application, the top wall, the bottom wall, the first side wall and the second side wall of the cavity collectively enclose the accommodation space, and the phase shift assembly is located in the accommodation space. In this way, the cavity can provide a mounting space for the phase shift assembly, and can also protect the phase shift assembly from external environment interference. The first side wall is recessed towards the accommodation space, and a wire slot is formed on the outer surface of the first side wall to facilitate fixing the cable for signal transmission through the wire slot. Compared with the shell of some current phase shifters, the shell in the present application does not need to additionally provide a wire fixing structure with a wire fixing slot, but the first side wall is recessed to form a wire slot, that is, the wire slot is integrated with the first side wall, thereby reducing the number of parts and the thickness of the first side wall, and to some extent, the material and mass of the cavity can be reduced, which is beneficial to reduce the cost. In addition, the first side wall and the wire slot are an integral structure, and there is no assembly between the parts, thereby effectively preventing poor assembly precision and poor assembly firmness between the parts. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Structure diagram of two stacked phase shifters disclosed in the embodiment of the present application;

[0013] Figure 2 Partial diagram of the cavity disclosed in the embodiment of the present application;

[0014] Figure 3 Cross-sectional diagram of the cavity disclosed in the embodiment of the present application;

[0015] Figure 4 Partial diagram of the phase shifter disclosed in the embodiment of the present application;

[0016] Figure 5 Partial diagram of the phase shift assembly disclosed in the embodiment of the present application;

[0017] Figure 6 Structure diagram of the phase shift circuit board and the dielectric plate disclosed in the embodiment of the present application;

[0018] Figure 7 Structure diagram of the end cover disclosed in the embodiment of the present application;

[0019] Figure 8 Structure diagram of two adjacent supports disclosed in the embodiment of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS:

[0021] 100 - phase shifter;

[0022] 110 - cavity; 111 - top wall; 112 - bottom wall; 113 - first side wall; 1131 - first arc end; 1132 - second arc end; 114 - second side wall; 115 - accommodation space; 116 - wire slot; 117 - wire hole; 118 - card slot; 119 - port;

[0023] 120 - phase shift assembly; 121 - phase shift circuit board; 1211 - avoidance hole; 122 - adapter rod; 1221 - rod end; 1222 - pin; 1223 - locking hole; 1224 - first boss; 123 - dielectric board; 1231 - first buckle; 1232 - first clamping hole; 1233 - mounting hole;

[0024] 130-end cover; 131-mounting slot; 132-opening; 133-cable clamping claw;

[0025] 140-coaxial cable;

[0026] 150-cable clamp;

[0027] 200-support;

[0028] 210 - concave frame; 211 - first limiting wall; 212 - second limiting wall; 213 - connecting wall; 214 - limiting protrusion;

[0029] 221 - first connecting ear; 2211 - first fastening hole; 222 - second connecting ear; 2221 - second fastening hole; 231 - first sliding groove; 232 - second sliding groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0032] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0033] refer to Figures 1 to 8 The present invention discloses a phase shifter 100 for use in a base station antenna. As a core component of the base station antenna, the phase shifter 100 can adjust the frequency band. The disclosed phase shifter 100 includes a cavity 110 and a phase shifting assembly 120.

[0034] The cavity 110 is a basic installation component of the phase shifter 100, which can provide an installation foundation for components such as the phase shift assembly 120. Figure 2 and Figure 3 In some embodiments, the cavity 110 includes a top wall 111, a bottom wall 112, a first side wall 113, and a second side wall 114. The top wall 111 and the bottom wall 112 are spaced apart along a first direction, and the first side wall 113 and the second side wall 114 are spaced apart along a second direction. The first side wall 113, the top wall 111, the second side wall 114, and the bottom wall 112 are connected end to end to form a receiving space 115. The phase shifting assembly 120 is disposed within the receiving space 115. Thus, the cavity 110 provides installation space for the phase shifting assembly 120 and also protects the phase shifting assembly 120 from interference from the external environment.

[0035] For example, the first direction and the second direction may be perpendicular to each other, where the first direction may be the thickness direction of the cavity 110, and the second direction may be the width direction of the cavity 110. In this case, the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114 may enclose a rectangular-shaped receiving space 115. Furthermore, the receiving space 115 may have other shapes as long as it can accommodate components such as the phase shift assembly 120, and the specific shape is not particularly limited.

[0036] The first side wall 113 is recessed toward the accommodating space 115, and a wire groove 116 is formed on the outer surface of the first side wall 113. In this way, the wire groove 116 can accommodate and clamp cables (such as the coaxial cable 140 described below). On the one hand, it can provide a setting space for the cables, and on the other hand, it can effectively prevent the cables from moving at will, ensure that the cables will not shake at will, and facilitate the layout of the cables.

[0037] It should be noted that the shape of the wire slot 116 is adapted to the outer shape of the cable, for example, the cable is a round cable, and the wire slot 116 is an arc slot; the cable is a flat cable, and the wire slot 116 is a flat slot, and the like. The specific shape of the wire slot 116 is not limited in the embodiments of the present application. In addition, the inner size of the wire slot 116 can be greater than the outer size of the cable. In this case, a wire clamping structure (for example, a wire clamp 150 described below) can be additionally added to limit and fix the cable and prevent the cable from being separated from the wire slot 116. Of course, the slot size of the wire slot 116 can be slightly smaller than the outer size of the cable. In this case, the cable can be pressed into the wire slot 116, and the slot can limit the cable from being separated from the wire slot 116. In some embodiments, the arc-shaped slot can include a semicircular slot, a 1 / 4 circular slot, or a 3 / 4 circular slot, and the like, so as to adapt to the cable.

[0038] In order to enable the cable to be connected with the phase shift component 120 located in the cavity 110, the side surface of the wire slot 116 can be provided with a wire hole 117 which is in communication with the accommodation space 115, so that at least part of the cable can pass into the accommodation space 115 through the wire hole 117 and be connected with the phase shift component 120, so as to facilitate signal transmission.

[0039] In the embodiments of the present application, the first side wall 113 is recessed to form the wire slot 116. Compared with the shell of some current phase shifters 100, the cavity 110 in the present application does not need to additionally provide a wire fixing structure with a wire fixing slot 116, but the first side wall 113 is recessed to form the wire slot 116, that is, the side wall is fused, so as to reduce the number of parts and the thickness of the first side wall 113, and to a certain extent, the material and mass of the cavity 110 can be reduced, which is beneficial to reduce the cost. In addition, the first side wall 113 and the wire slot 116 are integrated structures, and there is no assembly between the parts, so as to effectively prevent the assembly precision and assembly firmness between the parts from being poor.

[0040] Reference Figure 2In some embodiments, the wire groove 116 may be an arcuate groove having a first arcuate end 1131 and a second arcuate end 1132, wherein the first arcuate end 1131 is connected to the top wall 111 of the cavity 110, and the second arcuate end 1132 is connected to the bottom wall 112 of the cavity 110, and the angle between the tangent plane of the inner surface of the first side wall 113 at the first arcuate end 1131 and the inner surface of the top wall 111 is an acute angle. This arrangement can increase the strength of the connection between the first arcuate end 1131 and the top wall 111, and this arrangement allows the connection between the first arcuate end 1131 and the top wall 111 to be hollow, that is, not filled with material. Compared to the solid connection between the first side wall 113 and the top wall 111, the hollow connection can reduce material, thereby reducing the weight of the cavity 110 and reducing costs. Exemplarily, the angle range of the above-mentioned acute angle can be 10° to 80°, including, for example, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc. Of course, it can also be other degrees, which is not specifically limited here.

[0041] Similarly, the angle between the tangent plane of the inner surface of the first side wall 113 at the second arc end 1132 and the inner surface of the bottom wall 112 is an acute angle. This arrangement can increase the strength of the connection between the second arc end 1132 and the bottom wall 112, and this arrangement allows the connection between the second arc end 1132 and the bottom wall 112 to be hollow, that is, not filled with material. Compared to the solid connection between the first side wall 113 and the bottom wall 112, the hollow form can reduce material, which is beneficial to reducing the mass of the cavity 110 and reducing costs. Exemplarily, the angle range of the above-mentioned acute angle can be 10° to 80°, for example, including 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc. Of course, it can also be other degrees, which are not specifically limited here.

[0042] In the embodiment of the present application, the angle between the cross-section of the inner surface of the first side wall 113 at the first arc end 1131 and the inner surface of the top wall 111 can be equal to the angle between the cross-section of the inner surface of the first side wall 113 at the second arc end 1132 and the inner surface of the bottom wall 112. Of course, they can also be unequal, and the specific angle can be selected according to the shape of the cable.

[0043] In some embodiments, the wall thickness of each area on the first side wall 113 is equal, so that the first side wall 113 is relatively uniform without any excessively thick or thin parts. Therefore, the strength of each area on the first side wall 113 can be ensured to be relatively similar, and there are no weak parts, thereby improving the bearing capacity of the first side wall 113. In addition, there are no excessively thick parts, thereby reducing the amount of material used and helping to reduce weight.

[0044] refer to Figure 2 and Figure 3 To accommodate multiple phase shifting assemblies 120 within the cavity 110, the phase shifter 100 may include multiple cavities 110 stacked along a first direction, each cavity 110 containing a phase shifting assembly 120. Stacking multiple cavities 110 can help reduce the overall size of the phase shifter 100 and accommodate multiple phase shifting assemblies 120.

[0045] Exemplarily, the plurality of cavities 110 are stacked along their thickness direction. In addition, other arrangements may be used, which are not specifically limited here.

[0046] Furthermore, two adjacent cavities 110 can share a top wall 111 or a bottom wall 112. This arrangement can reduce the number of top walls 111 or bottom walls 112, thereby helping to reduce the material of the cavity 110 and reduce the overall mass of the cavity 110, thereby helping to reduce costs.

[0047] It should be noted that two adjacent cavities 110 share the top wall 111 or the bottom wall 112, which can be understood as a large cavity 110 with multiple spaced walls distributed along the first direction, thereby dividing the large cavity 110 into multiple small cavities 110, each of which can accommodate a phase shifting assembly 120. For example, Figure 2 As shown, the phase shifter 100 includes two cavities 110. The two cavities 110 share a common wall (i.e., top wall 111 or bottom wall 112). In this case, each of the two cavities 110 can accommodate a phase shifting assembly 120. Of course, the phase shifter 100 can also include other numbers of cavities 110, which can be selected based on actual needs.

[0048] Furthermore, the cavity 110 can be an integrally formed structure. For example, the cavity 110 can be formed by pultrusion, die-casting, etc., which can shorten the manufacturing cycle of the cavity 110 on the one hand and ensure the overall strength and sealing of the cavity 110 on the other hand.

[0049] The cavity 110 may be made of metal to ensure sufficient strength. Of course, other materials may also be used as long as they meet the actual working requirements.

[0050] refer to Figures 4 to 6In some embodiments, the phase shift assembly 120 may include a phase shift circuit board 121, a transition rod 122, and a dielectric plate 123. A gap is defined between the phase shift circuit board 121 and at least one of the top wall 111 and the bottom wall 112. The dielectric plate 123 is disposed in the gap and is slidably connected to the phase shift circuit board 121. One end of the transition rod 122 is connected to the dielectric plate 123. Therefore, applying a force to the transition rod 122 can cause the dielectric plate 123 to move relative to the phase shift circuit board 121, thereby varying the contact distance between the dielectric plate 123 and the phase shift circuit board 121 to achieve phase shifting. It should be noted that the principle of phase shifting can also be referenced in related art.

[0051] To apply force to the adapter rod 122, the other end of the adapter rod 122 can be provided with a rod end 1221. This rod end 1221 is provided with a pin 1222 and a locking hole 1223. The pin 1222 is configured to engage with a pin slot provided in the antenna azimuth adjustment device, while the locking hole 1223 is configured to engage with a mounting hole provided in the antenna azimuth adjustment device via a locking member. This arrangement ensures a secure and stable connection between the adapter rod 122 and the antenna azimuth adjustment device while facilitating assembly and disassembly.

[0052] Specifically, during the installation process, the pin 1222 can be first inserted into the pin groove, and the locking hole 1223 can be aligned with the installation hole, and then the locking piece can be inserted to achieve a locking connection between the pull rod end 1221 and the antenna azimuth adjustment device through the locking piece to ensure the firmness and stability of the connection.

[0053] Furthermore, a semicircular pin 1222 can be provided at the edge of the pull rod end 1221. These semicircular pins 1222 of the transfer rods 122 in the phase shifting assemblies 120 in two adjacent cavities 110 can mate and engage with the same pin slot. This allows the antenna azimuth adjustment device to drive the transfer rods 122 of the phase shifting assemblies 120 in two adjacent cavities 110 to move synchronously, thereby achieving simultaneous phase shifting of the phase shifting assemblies 120 in both cavities 110.

[0054] Of course, the phase shifting components 120 in each of the two cavities 110 can also achieve phase shifting at different times. In this case, the antenna azimuth angle adjustment device can be used to drive the respective transfer rods 122 to move, thereby driving the respective dielectric plates 123 to move relative to the corresponding phase shifting circuit boards 121, thereby achieving separate phase shifting.

[0055] In addition, the two semicircular pins 1222 can be connected to the same pin slot in a hanging manner to facilitate disassembly and assembly.

[0056] In order to prevent the phase shifting assembly 120 from moving randomly in the cavity 110, the inner surface of the first side wall 113 and the inner surface of the second side wall 114 are respectively provided with oppositely arranged slots 118, such as Figure 3 As shown, both ends of the phase-shifting circuit board 121 along the second direction are respectively engaged in the engaging slots 118. Based on this, the phase-shifting circuit board 121 can be ensured not to move arbitrarily within the cavity 110, thereby effectively preventing the phase-shifting circuit board 121 from moving arbitrarily within the cavity 110 and causing collisions that could damage components.

[0057] In some embodiments, two protrusion structures are respectively provided on the inner surface of the first side wall 113 and the inner surface of the second side wall 114. The two protrusion structures are spaced apart in the first direction so that the end of the phase-shifting circuit board 121 can be inserted into the space between the two protrusion structures. The two protrusion structures can limit the two sides of the phase-shifting circuit board 121, thereby ensuring the stability of the phase-shifting circuit board 121 in the cavity 110.

[0058] Compared with the method of directly providing the groove structure on the first side wall 113 and the second side wall 114 , the method of providing the protruding structure can ensure the strength of the first side wall 113 and the second side wall 114 to prevent the first side wall 113 and the second side wall 114 from being damaged.

[0059] Continue to refer Figures 4 to 6 In some embodiments, the phase shift assembly 120 may include a phase shift circuit board 121, a transition rod 122, and two dielectric plates 123. The two dielectric plates 123 are slidably connected to two sides of the phase shift circuit board 121 along a first direction, and both dielectric plates 123 are connected to the transition rod 122. For example, the transition rod 122 may include a first rod and a second rod, each connected to a rod end 1221. The first rod is further connected to the first dielectric plate 123, and the second rod is further connected to the second dielectric plate 123.

[0060] Based on the above arrangement, the two dielectric plates 123 can be driven to move synchronously by the same adapter rod 122, thereby simultaneously changing the contact amount between the two dielectric plates 123 and both sides of the phase shift circuit board 121, thereby simultaneously achieving phase shifting on both sides. In addition, the number of components can be reduced, which can reduce the weight of the entire phase shifter 100 to a certain extent.

[0061] refer to Figure 6To prevent the dielectric plate 123 from detaching from the phase-shifting circuit board 121, one of the two dielectric plates 123 is provided with a first latch 1231 and / or a first latch hole 1232, while the other is provided with a second latch hole and / or a second latch. The first latch 1231 faces the phase-shifting circuit board 121 and fits into the second latch hole, while the second latch faces the phase-shifting circuit board 121 and fits into the first latch hole 1232. This allows the two dielectric plates 123 to be connected via a latching mechanism, preventing them from detaching from the phase-shifting circuit board 121.

[0062] To prevent the phase shift circuit board 121 from interfering with the movement of the two dielectric plates 123 , the phase shift circuit board 121 may be provided with an avoidance hole 1211 . The first clip 1231 and / or the second clip pass through the avoidance hole 1211 and are movable within the avoidance hole 1211 .

[0063] In some embodiments, one of the dielectric plates 123 is provided with a first clip 1231, and the other dielectric plate 123 is provided with a second clip hole. The two dielectric plates 123 are respectively arranged on both sides of the phase-shifting circuit board 121, and the first clip 1231 is passed through the avoidance hole 1211 and then engaged with the second clip hole. This can ensure that the two dielectric plates 123 will not separate from the phase-shifting circuit board 121, and can also ensure that the two dielectric plates 123 can move relative to the phase-shifting circuit board 121 to achieve phase shifting.

[0064] In some other embodiments, one of the dielectric plates 123 is provided with a first latch hole 1232 , and the other dielectric plate 123 is provided with a second latch, which can also achieve the above technical effects.

[0065] In some further embodiments, one of the dielectric plates 123 is provided with a first buckle 1231 and a first latch hole 1232 , and the other dielectric plate 123 is provided with a second latch hole and a second buckle, which can further improve the firmness and stability of the connection between the two dielectric plates 123 .

[0066] refer to Figure 5 If the phase shift assembly 120 includes two dielectric plates 123, each dielectric plate 123 may further include a mounting hole 1233. Accordingly, one end of the adapter rod 122 includes a first protrusion 1224 and a second protrusion disposed opposite each other. The first protrusion 1224 and the second protrusion respectively engage with the mounting holes 1233 of the two dielectric plates 123. This arrangement allows the two dielectric plates 123 to share a single adapter rod 122, allowing them to move synchronously under the drive of the same adapter rod 122, thereby achieving simultaneous phase shifting.

[0067] refer to Figure 1 、 Figure 2 and Figure 4In order to facilitate the installation of the phase shift component 120, a port 119 can be provided at at least one end of the cavity 110 along its own extension direction, so that the phase shift component 120 can enter and exit the cavity 110 through the port 119, thereby facilitating the installation of the phase shift component 120.

[0068] In addition, in order to prevent the phase shift circuit board 121 from moving randomly in the cavity 110 during the phase shift process, the phase shifter 100 may further include an end cap 130. Figure 7 As shown, the end cover 130 is provided with a mounting groove 131, and at least one end of the cavity 110 is assembled in the mounting groove 131, that is, the end cover 130 is buckled at at least one end of the cavity 110 to facilitate sealing at least a portion of the port 119, and can be easily disassembled, thereby facilitating maintenance of the phase shift assembly 120.

[0069] Furthermore, to prevent interference from the end cap 130 with the phase shifting process, an opening 132 is partially defined at the bottom of the mounting slot 131. This opening 132 communicates with the port 119, and the adapter rod 122 passes through the opening 132, with the end of the phase shifting circuit board 121 abutting against the bottom of the mounting slot 131. This allows the adapter rod 122 to pass through the opening 132, allowing it to drive the dielectric plate 123 without interference from the end cap 130, ensuring normal phase shifting operation. Furthermore, the end cap 130 acts as a limiter for the phase shifting circuit board 121, preventing it from moving along the extension direction of the cavity 110, thereby ensuring its stability.

[0070] In the embodiment of the present application, the end cover 130 may further include a wire clamping claw 133, such as Figure 7 As shown, the clamping claw 133 can clamp and fix the coaxial cable 140 to prevent the coaxial cable 140 from moving at will.

[0071] refer to Figure 4 and Figure 5 In some embodiments, the phase shifter 100 may further include a coaxial cable 140. The coaxial cable 140 may include a core and a shielding layer wrapped around the core. The core passes through a cable hole 117 and is electrically connected to the phase shift assembly 120. The shielding layer is disposed within a cable slot 116. Specifically, the core is electrically connected to the phase shift circuit board 121 of the phase shift assembly 120 to facilitate signal transmission. The shielding layer protects and shields the core, preventing damage and blocking signal leakage, ensuring that the signal loses substantially no energy during transmission.

[0072] For example, the shielding layer may be welded in the wire groove 116 to ensure the firmness and stability of the coaxial cable 140 .

[0073] Continue to refer Figure 4The phase shifter 100 may also include a wire clamp 150. This clamp 150 is secured to the top wall 111 and bottom wall 112 of at least one cavity 110 and secures the shielding layer within the cable trough 116. The clamp 150 effectively prevents the coaxial cable 140 from escaping the cable trough 116, further ensuring the security and stability of the coaxial cable 140. Furthermore, the clamp 150 is removable from the cavity 110, facilitating maintenance or replacement of the coaxial cable 140.

[0074] Illustratively, the wire clamp 150 may have a certain elasticity and be firmly engaged with the top wall 111 and the bottom wall 112 through elastic action. Of course, a clamping structure may be provided on the top wall 111 and the bottom wall 112 respectively to facilitate the clamping cooperation with the wire clamp 150 .

[0075] Based on the aforementioned phase shifters 100, embodiments of the present application further disclose a base station antenna. The disclosed base station antenna includes multiple stacked phase shifters 100 and multiple supports 200. Each phase shifter 100 is connected to at least one support 200, and the supports 200 of two adjacent phase shifters 100 are correspondingly connected. The phase shifters 100 herein are the phase shifters 100 described in the aforementioned embodiments. Based on this, the multiple stacked phase shifters 100 can be sequentially connected through the support 200, thereby ensuring a secure connection between the multiple phase shifters 100.

[0076] For example, a plurality of supports 200 may be connected to the outside of the cavity 110 of each phase shifter 100 , and the plurality of supports 200 may be arranged at intervals along the extension direction of the cavity 110 . In this way, a multi-region connection may be achieved, so that two adjacent phase shifters 100 will not move relative to each other, thereby ensuring the firmness and stability of the connection between the phase shifters 100 .

[0077] refer to Figure 8 The support 200 may include a first limiting wall 211, a second limiting wall 212, and a connecting wall 213, wherein the first limiting wall 211 and the second limiting wall 212 are spaced apart along the second direction, and the connecting wall 213 is connected between the first limiting wall 211 and the second limiting wall 212, so that the first limiting wall 211, the second limiting wall 212, and the connecting wall 213 together form a concave frame 210. During actual installation, the cavity 110 of the phase shifter 100 can pass through the concave cavity of the concave frame 210.

[0078] Furthermore, each end of the first limiting wall 211 and the second limiting wall 212 away from the connecting wall 213 is provided with a limiting protrusion 214 , which can limit the phase shifter 100 to prevent the phase shifter 100 from separating from the concave frame 210 .

[0079] Specifically, when the cavity 110 of the phase shifter 100 passes through the concave cavity of the concave frame 210, the connecting wall 213 abuts against the top wall 111 of the cavity 110, the first limiting wall 211 abuts against the first side wall 113 of the cavity 110, the second limiting wall 212 abuts against the second side wall 114 of the cavity 110, and the limiting protrusion 214 abuts against the bottom wall 112 of the cavity 110. Through this arrangement, the various parts of the support 200 can limit the various walls of the cavity 110, thereby preventing the cavity 110 from shaking within the concave cavity of the concave frame 210, thereby ensuring the stability of the phase shifter 100.

[0080] To achieve connection between two supports 200, the supports 200 may further include two first connecting ears 221 and two second connecting ears 222. The two first connecting ears 221 are respectively connected to the connecting wall 213 and spaced apart in the second direction. The two second connecting ears 222 are respectively connected to the first limiting wall 211 and the second limiting wall 212, and the first connecting ears 221 and the second connecting ears 222 are spaced apart in the first direction. This arrangement allows the two second connecting ears 222 of one of the two adjacent supports 200 to mate with the two first connecting ears 221 of the other, and to be connected using fasteners. This ensures both the secureness and stability of the connection between the two adjacent supports 200 and facilitates disassembly, thereby facilitating the assembly or disassembly of multiple phase shifters 100 and ensuring the stability of the phase shifter 100 installation.

[0081] Exemplarily, the first connecting ear 221 may be provided with a first fastening hole 2211, and correspondingly, the second connecting ear 222 may be provided with a second fastening hole 2221. After the first connecting ear 221 and the second connecting ear 222 are docked, the first fastening hole 2211 is aligned with the second fastening hole 2221 to facilitate the insertion of the fastener for fastening.

[0082] In some embodiments, the connecting wall 213 may be provided with two first sliding grooves 231, and the first limiting wall 211 and the second limiting wall 212 may each be provided with a second sliding groove 232. Based on this, the two second sliding grooves 232 of one of the two adjacent supports 200 are slidably connected to the two first sliding grooves 231 of the other, thereby facilitating the assembly and disassembly of the two adjacent supports 200. Furthermore, after the two adjacent supports 200 are connected, the first connecting ears 221 and the second connecting ears 222 are aligned, allowing for a secure connection using fasteners to ensure a secure and stable connection.

[0083] It should be noted here that the sliding connection between the first slide groove 231 and the second slide groove 232 actually means that the side wall of the first slide groove 231 slides with the second slide groove 232, and correspondingly, the side wall of the second slide groove 232 slides with the first slide groove 231. At this time, the connection between the two adjacent supports 200 can be achieved by mutual hooking between the side walls of the first slide groove 231 and the side walls of the second slide groove 232 to ensure the firmness of the connection.

[0084] Based on the above base station antenna, an embodiment of the present application further discloses a base station, including the above base station antenna.

[0085] In summary, the embodiment of the present application fully reduces the cross-sectional area of ​​the cavity 110 of the phase shifter 100, thereby reducing weight and material while ensuring sufficient strength, thereby reducing costs while meeting actual needs and making the product more competitive. In addition, by stacking multiple supports 200, multiple phase shifters 100 can be better arranged within a complex base station antenna, making full use of the internal space.

[0086] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A phase shifter, characterized in that: include: A cavity (110) and a phase shifting assembly (120); The cavity (110) comprises a top wall (111) and a bottom wall (112) spaced apart along a first direction, and a first side wall (113) and a second side wall (114) spaced apart along a second direction, wherein the first side wall (113), the top wall (111), the second side wall (114) and the bottom wall (112) are connected end to end to form a receiving space (115), and the phase shifting assembly (120) is disposed in the receiving space (115); The first side wall (113) is bent and extended and is concave toward the accommodating space (115), and a wire groove (116) is formed on the outer surface of the first side wall (113). The wall surface of the wire groove (116) is provided with a wire hole (117), and the wire hole (117) is connected to the accommodating space (115). The internal size of the wire groove (116) is larger than the external size of the cable, and the size of the wire groove (116) at the groove is larger than the internal size of the wire groove (116).

2. The phase shifter according to claim 1, wherein: The wire groove (116) is an arc-shaped groove having a first arc end (1131) connected to the top wall (111) and a second arc end (1132) connected to the bottom wall (112); The angle between the tangent plane of the inner surface of the first side wall (113) at the first arc end (1131) and the inner surface of the top wall (111) is an acute angle, and / or the angle between the tangent plane of the inner surface of the first side wall (113) at the second arc end (1132) and the inner surface of the bottom wall (112) is an acute angle.

3. The phase shifter according to claim 1, wherein: The wall thickness of each area on the first side wall (113) is equal.

4. The phase shifter according to claim 1, wherein: The phase shifter (100) comprises a plurality of cavities (110), and the plurality of cavities (110) are stacked along the first direction; The phase shift component (120) is provided in each cavity (110).

5. The phase shifter according to claim 4, wherein: Two adjacent cavities (110) share the top wall (111) or the bottom wall (112).

6. The phase shifter according to claim 4, wherein: The phase shift assembly (120) comprises a phase shift circuit board (121), a transfer rod (122) and a dielectric plate (123); There is a gap between the phase-shifting circuit board (121) and at least one of the top wall (111) and the bottom wall (112); the dielectric plate (123) is disposed in the gap and is slidably connected to the phase-shifting circuit board (121); One end of the adapter pull rod (122) is connected to the dielectric plate (123), and the other end of the adapter pull rod (122) is provided with a pull rod end (1221). The pull rod end (1221) is provided with a pin column (1222) and a locking hole (1223). The pin column (1222) is used to cooperate with a pin groove provided in the antenna azimuth angle adjustment device, and the locking hole (1223) is used to be locked with a mounting hole provided in the antenna azimuth angle adjustment device through a locking piece.

7. The phase shifter according to claim 6, wherein: A semicircular pin (1222) is provided at the edge of the pull rod end (1221); The semicircular pins (1222) of the transfer rods (122) in the phase shifting assemblies (120) in the two adjacent cavities (110) are butted against each other and are connected in cooperation with the same pin groove.

8. The phase shifter according to claim 6, wherein: The inner surface of the first side wall (113) and the inner surface of the second side wall (114) are respectively provided with oppositely arranged card slots (118), and the two ends of the phase-shifting circuit board (121) along the second direction are respectively card-engaged in the card slots (118).

9. The phase shifter according to claim 1, wherein: The phase shift assembly (120) comprises a phase shift circuit board (121), a transfer rod (122), and two dielectric plates (123), wherein the two dielectric plates (123) are respectively slidably connected to two sides of the phase shift circuit board (121) along the first direction, and both dielectric plates (123) are connected to the transfer rod (122); One of the two medium plates (123) is provided with a first snap fastener (1231) and / or a first snap hole (1232), the first snap fastener (1231) facing the phase-shifting circuit board (121), and the other is provided with a second snap hole and / or a second snap fastener, the second snap fastener faces the phase-shifting circuit board (121), the first snap fastener (1231) is adapted to the second snap hole, and the second snap fastener is adapted to the first snap hole (1232); The phase-shifting circuit board (121) is provided with an avoidance hole (1211), and the first clip (1231) and / or the second clip pass through the avoidance hole (1211) and move within the avoidance hole (1211).

10. The phase shifter according to claim 1, wherein: The phase shift assembly (120) comprises a phase shift circuit board (121), a transfer rod (122), and two dielectric plates (123), wherein the two dielectric plates (123) are respectively slidably connected to two sides of the phase shift circuit board (121) along the first direction; The two dielectric plates (123) are respectively provided with mounting holes (1233); one end of the adapter rod (122) is provided with a first convex column (1224) and a second convex column arranged opposite to each other; the first convex column (1224) and the second convex column are respectively connected to the mounting holes (1233) of the two dielectric plates (123).

11. The phase shifter according to claim 6, 9 or 10, characterized in that: The cavity (110) is provided with a port (119) at at least one end along its extension direction; The phase shifter (100) further includes an end cover (130), the end cover (130) is provided with a mounting groove (131), at least one end of the cavity (110) is assembled in the mounting groove (131), a portion of the bottom of the mounting groove (131) is provided with an opening (132), the opening (132) is communicated with the port (119), the transfer rod (122) passes through the opening (132), and the end of the phase shift circuit board (121) is in contact with the bottom of the mounting groove (131).

12. The phase shifter according to claim 1 or 4, characterized in that: The phase shifter (100) further includes a coaxial cable (140) and a wire clamp (150); The coaxial cable (140) comprises a wire core and a shielding layer wrapped around the outside of the wire core, the wire core passes through the wire hole (117) and is electrically connected to the phase shifting component (120), and the shielding layer is arranged in the wire slot (116); The wire clamp (150) is clamped to the top wall (111) and the bottom wall (112) of at least one of the cavities (110), and limits the shielding layer to the wire slot (116).

13. A base station antenna, characterized in that: The invention comprises a plurality of stacked phase shifters (100) and a plurality of supports (200), each of the phase shifters (100) is connected to at least one support (200), and the supports (200) of two adjacent phase shifters (100) are connected correspondingly, and the phase shifter (100) is the phase shifter (100) according to any one of claims 1 to 12.

14. The base station antenna according to claim 13, wherein: The support (200) comprises a first limiting wall (211), a second limiting wall (212) and a connecting wall (213); The first limiting wall (211) and the second limiting wall (212) are spaced apart along the second direction, the connecting wall (213) is connected between the first limiting wall (211) and the second limiting wall (212), the first limiting wall (211), the second limiting wall (212) and the connecting wall (213) together form a concave frame (210), and the first limiting wall (211) and the second limiting wall (212) are each provided with a limiting protrusion (214) at their ends away from the connecting wall (213); The cavity (110) of the phase shifter (100) passes through the concave frame (210), and the connecting wall (213) abuts against the top wall (111) of the cavity (110), the first limiting wall (211) abuts against the first side wall (113) of the cavity (110), the second limiting wall (212) abuts against the second side wall (114) of the cavity (110), and the limiting protrusion (214) abuts against the bottom wall (112) of the cavity (110).

15. The base station antenna according to claim 14, wherein: The support (200) further includes two first connecting ears (221) and two second connecting ears (222); The two first connecting ears (221) are respectively connected to the connecting wall (213) and are spaced apart in the second direction; the two second connecting ears (222) are respectively connected to the first limiting wall (211) and the second limiting wall (212), and the first connecting ears (221) and the second connecting ears (222) are spaced apart in the first direction; The two second connecting ears (222) of one of the two adjacent supports (200) are respectively butted against the two first connecting ears (221) of the other one and connected using fasteners.

16. The base station antenna according to claim 14 or 15, characterized in that: The connecting wall (213) is provided with two first sliding grooves (231), and the first limiting wall (211) and the second limiting wall (212) are respectively provided with second sliding grooves (232); The two second sliding grooves (232) of one of the two adjacent supports (200) are slidably connected to the two first sliding grooves (231) of the other one.

17. A base station, characterized in that: Comprising the base station antenna according to any one of claims 13 to 16.

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