Phase shifter transmission device and antenna

Abstract

The utility model discloses a phase shifter transmission device and an antenna. The phase shifter transmission device comprises a transmission plate used for connecting phase shifting media of a plurality of phase shifters, and the transmission plate is provided with a guide groove formed in the moving direction of the phase shifting media; the guide piece is movably arranged in the guide groove and used for guiding the transmission plate to move in the moving direction of the phase shifting medium; the driving assembly comprises a transmission rack and a transmission worm which are meshed, the transmission rack is connected with the transmission plate, and the transmission rack can be driven by rotating the transmission worm so as to drive the transmission plate to move in the moving direction of the phase shifting medium. According to the phase shifter transmission device and the antenna provided by the utility model, the transmission assembly adopts a flat layout, the transmission plate is driven by the driving assembly to reciprocate, and the transmission plate can more accurately move along the preset direction by utilizing the matching of the guide piece and the guide groove of the transmission plate, so that the phase shifter medium is driven to stably slide in the cavity, and the transmission efficiency is improved. Stroke deviation does not occur, and accurate phase adjustment of the driving phase shifter is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of communication, and particularly relates to a phase shifter driving device and an antenna. Background Art

[0002] As an antenna that can adjust the downtilt angle through electronic control means, the electrically tunable antenna has become an essential device in modern communication systems. By adjusting the downtilt angle of the antenna, the coverage range can be optimized, the signal quality can be improved, and thus the performance of the entire communication network can be enhanced. The downtilt angle adjustment method of the electrically tunable antenna mainly relies on a driving device, which drives the movable medium in the phase shifter group to move relative to the feeding network of the phase shifter, thereby changing the phase of the phase shifter and achieving precise adjustment of the antenna radiation unit.

[0003] With the evolution of communication technology and the increasing demand for antennas, especially in the new generation of communication networks such as 5G, the system has higher and higher requirements for the performance indicators of electrically tunable antennas. The electrically tunable antenna not only needs to have flexible downtilt angle adjustment capabilities, but also requires maintaining consistency and high-precision phase adjustment in the case of high integration and a large number of ports.

[0004] However, the existing phase shifter devices of electrically tunable antennas have exposed many problems when facing these challenges. The phase shifter is extremely sensitive to the movement of the dielectric plate, and any slight deviation will have a significant impact on the phase shift effect. In the limited internal space, how to ensure high-precision and consistent adjustment of each phase shifter while increasing the number of phase shifter groups has become a difficult problem that the existing technology cannot overcome. With the development of antenna design towards lightweight and miniaturization, the original phase shifter device of 4G antennas is no longer able to meet the requirements of current high-integration, multi-port electrically tunable antennas due to its complex structure and large volume.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a new solution. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a phase shifter driving device and an antenna, which can achieve high-precision and consistent adjustment of multiple phase shifters.

[0007] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0008] In a first aspect, the present utility model provides a phase shifter driving device, which includes: a driving plate for connecting phase shifting media of a plurality of phase shifters, and the driving plate is provided with guiding grooves arranged along the moving direction of the phase shifting media; a guiding member movably arranged in the guiding grooves for guiding the driving plate to move along the moving direction of the phase shifting media; a driving assembly including an engaged driving rack and a driving worm, the driving rack is connected to the driving plate, and rotating the driving worm can drive the driving rack to drive the driving plate to move along the moving direction of the phase shifting media.

[0009] In one or more embodiments, the driving plate is provided with multiple groups of mounting holes for connecting phase shifting media, and each group of the mounting holes is connected to one phase shifting media.

[0010] In one or more embodiments, the driving plate is provided with at least one group of symmetrically arranged guiding grooves, and the guiding stroke of the guiding grooves is greater than or equal to the phase shifting stroke of the phase shifting media.

[0011] In one or more embodiments, the guiding member includes a guiding post and a limiting seat, the guiding post penetrates through the guiding groove, the limiting seat is arranged at the top end of the guiding post, and the width of the limiting seat is greater than the width of the guiding groove.

[0012] In one or more embodiments, the limiting seat includes a separated first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion can approach each other under an external force so that the width of the limiting seat is less than or equal to the width of the guiding groove.

[0013] In one or more embodiments, a guiding surface for guiding the limiting seat to pass through the guiding groove is arranged on the outer periphery of the limiting seat.

[0014] In one or more embodiments, the guiding member further includes a supporting seat and a fixing seat, the bottom end of the guiding post is connected to the supporting seat, and the supporting seat protrudes from the top surface of the fixing seat.

[0015] In one or more embodiments, a first positioning pin is arranged on the bottom surface of the fixing seat, and a first screw hole penetrating through the top surface and the bottom surface of the fixing seat is arranged on the fixing seat. The first positioning pin is used for positioning the guiding member on the antenna reflector, and the first screw hole is used for fixedly connecting the guiding member to the antenna reflector.

[0016] In one or more embodiments, at least one group of connection structures is arranged on the driving rack, and each group of the connection structures is connected to one driving plate.

[0017] In one or more embodiments, the connection structure includes a second positioning pin and a second screw hole. The transmission plate is provided with a positioning hole corresponding to the second positioning pin and a third screw hole corresponding to the second screw hole. The second positioning pin is inserted into the positioning hole, and the second screw hole and the third screw hole are screwed together by a screw.

[0018] In one or more embodiments, the driving assembly includes a support member fixed to the antenna reflector. The support member is provided with a limiting groove for restricting the displacement of the transmission worm in the moving direction of the phase shifter medium, and the transmission worm is rotatably arranged in the limiting groove.

[0019] In one or more embodiments, the driving assembly includes a transmission shaft connected to the transmission worm. The support member is provided with a limiting hole, and the transmission shaft is rotatably inserted into the limiting hole.

[0020] In a second aspect, the present invention provides an antenna, which includes the phase shifter transmission device as described above.

[0021] Compared with the prior art, for the phase shifter transmission device and the antenna provided by the present invention, the transmission components adopt a flattened layout. By driving the reciprocating movement of the transmission plate through the driving assembly and utilizing the cooperation between the guiding member and the guiding groove of the transmission plate, the transmission plate can move more accurately along the preset direction, thereby driving the phase shifter medium to slide smoothly in the cavity without travel deviation, realizing accurate phase adjustment of the driving phase shifter; the transmission device has a simple structure, a relatively thin overall thickness, fewer transmission parts, and high phase shifting accuracy, which is beneficial to the overall flattened and miniaturized design of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the phase shifter transmission device in an embodiment of the present invention;

[0024] Figure 2 It is an assembly drawing of the phase shifter transmission device and the reflector in an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the transmission plate in an embodiment of the present invention;

[0026] Figure 4Schematic diagram of the guiding member in an embodiment of the present utility model;

[0027] Figure 5 is Figure 4 bottom view of the shown guiding member;

[0028] Figure 6 Schematic diagram of the driving assembly in an embodiment of the present utility model;

[0029] Figure 7 Schematic diagram of the supporting member in an embodiment of the present utility model.

[0030] Main reference numeral description:

[0031] 1 - transmission plate, 11 - guiding groove, 12 - mounting hole, 2 - guiding member, 21 - guiding post, 22 - limiting seat, 221 - first limiting portion, 222 - second limiting portion, 223 - guiding surface, 23 - supporting seat, 24 - fixing seat, 25 - first positioning pin, 26 - first screw hole, 3 - driving assembly, 31 - transmission rack, 32 - transmission worm, 33 - connecting structure, 331 - second positioning pin, 332 - second screw hole, 34 - supporting member, 341 - limiting groove, 342 - limiting hole, 35 - transmission shaft, 4 - reflector. Detailed implementation manners

[0032] In order to enable those skilled in the art of the present technology to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] Unless otherwise clearly stated, in the whole specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0034] In the context of the current communication technology, the application of electrically tunable antennas is becoming more and more extensive, and the system has put forward higher requirements for the performance indicators of antennas, such as phase adjustment accuracy, antenna lightweight and miniaturization, etc. However, when facing the increasingly complex structure inside the antenna and the synchronous control requirements of multiple phase shifters, the existing phase shifting devices have exposed a series of deficiencies. Traditional phase shifting devices often cannot ensure the high-precision synchronous adjustment of multiple phase shifters within a limited space, and there are also obvious limitations in improving the portability and reliability of the overall device.

[0035] In the process of in-depth research on the prior art, the inventors found that the main problems of traditional phase shifters are concentrated in the following aspects: First, the moving accuracy of the phase shifter is insufficient, which is prone to deviation and affects the overall performance of the antenna; Second, the structure of the driving device is complex and the volume is large, which is not conducive to the lightweight design of the antenna.

[0036] To overcome the above problems, the present utility model proposes a phase shifter transmission device. The core idea is to simplify the layout of the transmission structure by redesigning the structure of the transmission device and introduce an efficient guiding and transmission cooperation mechanism to achieve high-precision adjustment of the phase shifter. In this utility model, the coordination working mode among the transmission plate 1, the guiding member, and the driving component is optimized to maximize the adjustment accuracy and working efficiency of the phase shifter in the limited internal space of the antenna.

[0037] By reasonably configuring each component, optimizing its structure and function, the transmission plate can move smoothly along the preset direction under the guidance of the guiding member, thereby realizing synchronous and precise adjustment of the phase shifter. At the same time, the simplified design of the driving component not only effectively reduces the number of transmission parts, but also further improves the reliability and operation convenience of the overall device, which helps to achieve the overall flattening and miniaturization of the antenna.

[0038] Please refer to Figures 1 to 7 As shown, the phase shifter transmission device in an embodiment of the present utility model includes a transmission plate 1, a guiding member 2, and a driving component 3.

[0039] The transmission plate 1 is used to connect the phase-shifting media of multiple phase shifters. The transmission plate 1 is provided with guiding grooves 11 arranged along the moving direction of the phase-shifting media. The guiding member 2 is movably arranged in the guiding grooves 11 to guide the transmission plate 1 to move along the moving direction of the phase-shifting media. The driving component 3 includes an engaged transmission rack 31 and a transmission worm 32. The transmission rack 31 is connected to the transmission plate 1, and rotating the transmission worm 32 can drive the transmission rack 31 to drive the transmission plate 1 to move along the moving direction of the phase-shifting media.

[0040] The transmission plate 1, as the core transmission component of the entire device, is mainly used to connect and support the phase-shifting media of multiple phase shifters. When the phase shifter adjusts the antenna downtilt angle, precise phase changes are required, and this change depends on the precise movement of the phase-shifting media. To ensure the stability and precision of this movement, guiding grooves 11 extending along the moving direction of the phase-shifting media are provided on the transmission plate 1. These guiding grooves 11 provide a guiding path for the movement of the phase-shifting media, limit the movement trajectory of the transmission plate 1, and avoid possible displacement deviations.

[0041] The function of the guide member 2 is to further ensure that the drive plate 1 remains stable and consistent during movement. The guide member 2 is movably disposed within the guide groove 11 of the drive plate 1 and cooperates with the guide groove 11 to guide the movement of the drive plate 1. When the drive plate 1 moves along a predetermined direction, the guide member 2 guides the drive plate 1 to move smoothly in a straight line direction by sliding within the guide groove 11. This design avoids movement deviation that may be caused by external factors, ensures that the phase shifter medium is always on the correct path during operation, and thus improves the phase adjustment accuracy of the phase shifter.

[0042] The drive assembly 3 includes a transmission rack 31 and a transmission worm 32 that mesh together. The transmission rack 31 is connected to the drive plate 1. When the transmission worm 32 starts to rotate, due to the meshing effect between the worm and the rack, the transmission rack 31 is pushed, thereby driving the drive plate 1 to perform a reciprocating motion along the movement direction of the phase shifter medium. The transmission worm 32 can smoothly convert the rotational motion into a linear motion. This power conversion not only has high precision but also can maintain continuity and consistency, thus ensuring that the drive plate 1 does not experience discontinuity or mutation during the entire movement process, further improving the phase adjustment accuracy of the phase shifter.

[0043] During the use of the phase shifter drive device, through the close cooperation of the drive plate 1, the guide member 2, and the drive assembly 3, this device can achieve stable and efficient phase adjustment of the phase shifter within a limited antenna space.

[0044] The main function of the drive plate 1 is to connect the phase shifter medium of the phase shifter and achieve the phase adjustment of the phase shifter through its movement. The guide groove 11 provided on the drive plate 1 extends along the movement direction of the phase shifter medium, providing a definite path for the movement of the drive plate 1. The design of the guide groove 11 can ensure that the drive plate 1 can move along the preset direction when driven by an external force without deviation.

[0045] The guide member 2 is movably disposed within the guide groove 11 of the drive plate 1 and has the function of guiding and supporting the movement of the drive plate 1. During use, the guide member 2 ensures that the drive plate 1 always moves smoothly along the extension direction of the guide groove 11 by sliding within the guide groove 11. The guide member 2 is not only preferably provided with good mechanical strength to withstand the stress generated during the movement of the drive plate 1 but also has sufficient wear resistance to ensure that during long-term use, the movement of the drive plate 1 will not deviate due to the wear of the guide member 2.

[0046] The driving assembly 3 is the power source for the transmission plate 1 to move. The transmission rack 31 is fixedly connected to the transmission plate 1, so the movement of the rack directly determines the movement direction and speed of the transmission plate 1. During use, the transmission worm 32 can obtain power through an external driving source (such as a motor). When the worm starts to rotate, its helical teeth mesh with the teeth on the transmission rack 31, generating thrust to push the transmission rack 31 to move in a fixed direction. As the rack moves, the transmission plate 1 also performs linear reciprocating motion along the direction of the guide groove 11.

[0047] In an exemplary embodiment, please refer to Figure 1 and Figure 3 As shown, the transmission plate 1 is provided with a plurality of mounting holes 12 for connecting phase-shifting media, and each mounting hole 12 is connected to a phase-shifting medium. The mounting holes 12 are arranged on the surface of the transmission plate 1 and grouped according to the installation position requirements of the phase-shifting medium, ensuring that the phase-shifting medium can be stably fixed and supported under different phase shifter working conditions. The design of the plurality of mounting holes 12 enables the transmission plate 1 to carry a plurality of phase-shifting media at the same time, and each phase-shifting medium can be tightly connected to the transmission plate 1 through these mounting holes 12.

[0048] In an exemplary embodiment, please refer to Figure 3 As shown, the transmission plate 1 is provided with at least one set of symmetrically arranged guide grooves 11, and the guide stroke of the guide grooves 11 is greater than or equal to the phase shift stroke of the phase shift medium. When the transmission plate 1 moves along the guide grooves 11, the symmetrical design allows the forces on both sides of the transmission plate 1 to always remain balanced, which can reduce the tilt or shaking that may occur in the movement of the transmission plate 1, and also reduce friction and wear, thereby extending the service life of the device. The design of the symmetrical guide grooves 11 can also effectively disperse the external forces on the transmission plate 1 during movement, making its force more uniform, and further improving the stability of the movement of the transmission plate 1.

[0049] The guide stroke is designed to be greater than or equal to the actual phase shift stroke of the phase shift medium. This design ensures that the transmission plate 1 can always be effectively guided and controlled during the phase shift process, thereby avoiding movement deviation or instability caused by insufficient stroke.

[0050] In an exemplary embodiment, please refer to Figure 4 and Figure 5 As shown, the guide member 2 includes a guide column 21 and a limit seat 22. The guide column 21 is inserted into the guide groove 11, and the limit seat 22 is arranged at the top of the guide column 21. The width of the limit seat 22 is greater than the width of the guide groove 11. When the guide column 21 slides in the guide groove 11, it can effectively limit the lateral displacement of the transmission plate 1, ensuring that it always moves along the set straight line direction.

[0051] To further enhance the stability of the guide post 21 in the guide groove 11, a limit seat 22 is designed at the top of the guide post 21. The width of the limit seat 22 is greater than the width of the guide groove 11. This design enables the limit seat 22 to cover the opening part of the guide groove 11 when the guide post 21 slides, playing a role of fixing and restricting, and can effectively prevent the guide post 21 from accidentally disengaging from the guide groove 11 during the movement of the transmission plate 1.

[0052] Specifically, the limit seat 22 includes a separated first limit portion 221 and a second limit portion 222. Under the action of an external force, the first limit portion 221 and the second limit portion 222 can approach each other, so that the width of the limit seat 22 is less than or equal to the width of the guide groove 11.

[0053] In the natural state, the limit seat 22 can effectively cover and fix the guide post 21 to prevent it from disengaging from the guide groove 11. When it is necessary to install or adjust the limit seat 22 by passing it through the guide groove 11, under the action of an external force, the first limit portion 221 and the second limit portion 222 can approach each other, making the width of the limit seat 22 shrink to less than or equal to the width of the guide groove 11, so that the limit seat 22 can smoothly pass through the guide groove 11 to achieve flexible assembly and disassembly operations.

[0054] After removing the external force, the first limit portion 221 and the second limit portion 222 automatically reset. This reset mechanism depends on the elasticity of the material or a specific mechanical structure design. When the first limit portion 221 and the second limit portion 222 return to the natural state, the width of the limit seat 22 is greater than the width of the guide groove 11 again, thus playing a stable limiting role to ensure the positioning of the guide post 21 in the guide groove 11 and prevent it from accidentally disengaging or shifting during the movement of the transmission plate 1.

[0055] Further, please refer to Figure 4 As shown, a guiding surface 223 for guiding the limit seat 22 to pass through the guide groove 11 is provided on the outer periphery of the limit seat 22. When the limit seat 22 enters the guide groove 11 during the installation process, the guiding surface 223 first contacts the inner wall of the guide groove 11. Through this progressive extrusion effect, the first limit portion 221 and the second limit portion 222 of the limit seat 22 gradually approach each other. This extrusion force enables the two separated limit portions to temporarily reduce the overall width of the limit seat 22, so that the limit seat 22 can smoothly pass through the guide groove 11.

[0056] In an exemplary embodiment, please refer to Figure 3 As shown, the guiding member 2 further includes a support seat 23 and a fixed seat 24. The bottom end of the guide post 21 is connected to the support seat 23, and the support seat 23 protrudes from the top surface of the fixed seat 24.

[0057] The support seat 23 not only provides necessary support for the guide column 21, but also ensures the stability of the transmission plate 1 during movement by combining with the fixing seat 24. The design of the support seat 23 takes into account the mechanical requirements of the transmission plate 1 in reciprocating motion. By bearing and supporting the transmission plate 1, it reduces the vibration and tilt that may occur when the transmission plate 1 moves, thereby making the movement of the transmission plate 1 more stable and smooth.

[0058] The function of the fixing seat 24 is to firmly fix the entire guide member 2 on the reflector 4 of the antenna. Through the fixing function of the fixing seat 24, the guide member 2 can be accurately positioned in the entire device, ensuring that the relative positions between the guide column 21, the support seat 23 and the transmission plate 1 remain unchanged.

[0059] For details, please refer to Figure 5 As shown, a first positioning pin 25 is provided on the bottom surface of the fixing seat 24, and a first screw hole 26 penetrating the top and bottom surfaces thereof is provided on the fixing seat 24. The first positioning pin 25 is used to position the guide member 2 on the antenna reflector 4, and the first screw hole 26 is used to fix the guide member 2 to the antenna reflector 4.

[0060] The first positioning pin 25 is located on the bottom surface of the fixing seat 24, and its function is to provide a preliminary positioning function for the guide member 2 during the installation process. When the fixing seat 24 contacts the antenna reflector 4, the first positioning pin 25 will be inserted into the corresponding hole pre-set on the reflector 4. This mechanical positioning method can quickly and accurately determine the position of the fixing seat 24 on the reflector 4, and prevent misalignment or offset during the installation process.

[0061] The first screw hole 26 on the fixing seat 24 passes through the top and bottom surfaces thereof. This design allows the screw to pass through the top surface of the fixing seat 24 and be directly screwed into the antenna reflector 4, thereby achieving a tight connection between the guide 2 and the reflector 4.

[0062] In an exemplary embodiment, please refer to Figure 6 As shown, at least one set of connection structures 33 is provided on the transmission rack 31, and each set of connection structures 33 is connected to a transmission plate 1. Multiple sets of connection structures 33 can be provided to further expand the function and application scope of the transmission device. Each set of connection structures 33 can be independently connected to a transmission plate 1, so that when the transmission rack 31 is working, it can simultaneously drive multiple transmission plates 1 to move along a predetermined trajectory. This multi-point synchronous drive method improves the overall efficiency of the system, especially in application scenarios where multiple phase shifters need to be adjusted simultaneously.

[0063] For details, please refer to Figure 6As shown, the connection structure 33 includes a second positioning pin 331 and a second screw hole 332. The transmission plate 1 is provided with a positioning hole corresponding to the second positioning pin 331 and a third screw hole corresponding to the second screw hole 332. The second positioning pin 331 is inserted into the positioning hole, and the second screw hole 332 and the third screw hole are screwed together by a screw.

[0064] When the transmission plate 1 is installed on the transmission rack 31, the second positioning pin 331 is first inserted into the positioning hole on the transmission plate 1. This mechanical positioning step ensures that the transmission plate 1 can quickly and accurately find its correct position on the transmission rack 31 during installation, avoiding deviations and misalignments during the installation process. Through the precise positioning of the second positioning pin 331, the relative position between the transmission plate 1 and the transmission rack 31 is fixed, which provides a basis for the subsequent screwing operation.

[0065] In an exemplary embodiment, please refer to Figure 2 , Figure 6 and Figure 7 As shown, the drive assembly 3 includes a support member 34 fixed to the antenna reflector 4. The support member 34 is provided with a limiting groove 341 for restricting the displacement of the transmission worm 32 in the moving direction of the phase shifter medium. The transmission worm 32 is rotatably disposed in the limiting groove 341.

[0066] The support member 34, as the main support structure of the drive assembly 3, its main function is to firmly mount the entire drive assembly 3 on the antenna reflector 4. The firmness of the support member 34 is directly related to the stable operation of the transmission worm 32 and other transmission components. To ensure that the drive assembly 3 does not displace due to external forces or vibrations during operation, the support member 34 is preferably made of a material with higher strength and can be fixed to the antenna reflector 4 through a screwing structure, so that the transmission system can maintain efficient operation under various working conditions.

[0067] The main function of the limiting groove 341 is to restrict the displacement of the transmission worm 32 in the moving direction of the phase shifter medium, ensuring that the transmission worm 32 does not shake during rotation, preventing possible axial offset or sliding of the transmission worm 32 during operation, and thus ensuring the linear movement of the transmission rack 31 and the smooth movement of the transmission plate 1.

[0068] Specifically, please refer to Figure 6 As shown, the drive assembly 3 includes a transmission shaft 35 connected to the transmission worm 32. The support member 34 is provided with a limiting hole 342, and the transmission shaft 35 is rotatably inserted through the limiting hole 342.

[0069] The drive shaft 35, as a transmission component in the drive assembly 3, its main function is to transmit the power source (such as a servo motor) to the drive worm 32, thereby driving the movement of the drive rack 31. One end of the drive shaft 35 is tightly connected to the drive worm 32 through mechanical connection or coupling, so that the rotation of the drive shaft 35 can drive the rotation of the worm. The limit hole 342 on the support member 34 provides necessary support and limitation for the rotation of the drive shaft 35. The drive shaft 35 is rotatably inserted into the limit hole 342 to ensure that the drive shaft 35 can maintain a fixed axis during rotation and will not occur lateral offset or unstable vibration.

[0070] In one embodiment of the present utility model, an antenna is further provided. The antenna includes a reflector and the phase shifter drive device as described above mounted on the reflector.

[0071] In summary, for the phase shifter drive device and the antenna provided by the present utility model, the drive assembly adopts a flattened layout. By driving the reciprocating movement of the drive plate through the drive assembly and utilizing the cooperation between the guide member and the guide groove of the drive plate, the drive plate can move more accurately along the preset direction, thereby driving the phase shifter medium to slide smoothly in the cavity without travel deviation, realizing accurate phase adjustment of the drive phase shifter; the drive device has a simple structure, a relatively thin overall thickness, few drive components, and high phase shift accuracy, which is beneficial to the overall flattened and miniaturized design of the antenna.

[0072] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0073] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A phase shifter drive device, characterized in that, Comprising: A transmission plate for connecting the phase-shifting media of multiple phase shifters, with guiding grooves arranged along the moving direction of the phase-shifting media on the transmission plate; A guiding member movably arranged in the guiding grooves to guide the transmission plate to move along the moving direction of the phase-shifting media; A driving assembly including an engaged transmission rack and a transmission worm. The transmission rack is connected to the transmission plate, and rotating the transmission worm can drive the transmission rack to drive the transmission plate to move along the moving direction of the phase-shifting media.

2. The phase shifter drive device according to claim 1, characterized in that, Multiple sets of mounting holes for connecting the phase-shifting media are provided on the transmission plate, and each set of mounting holes connects one phase-shifting media.

3. The phase shifter drive device according to claim 1, characterized in that, At least one set of symmetrically arranged guiding grooves is provided on the transmission plate, and the guiding stroke of the guiding grooves is greater than or equal to the phase-shifting stroke of the phase-shifting media.

4. The phase shifter drive device according to claim 1, characterized in that, The guiding member includes a guiding post and a limiting seat. The guiding post is inserted into the guiding groove, and the limiting seat is arranged at the top end of the guiding post. The width of the limiting seat is greater than the width of the guiding groove.

5. The phase shifter drive device according to claim 4, characterized in that, The limiting seat includes a separated first limiting portion and a second limiting portion. The first limiting portion and the second limiting portion can approach each other under an external force so that the width of the limiting seat is less than or equal to the width of the guiding groove.

6. The phase shifter drive device according to claim 4, wherein A guiding surface for guiding the limiting seat to pass through the guiding groove is provided on the outer periphery of the limiting seat.

7. The phase shifter drive device according to claim 4, characterized in that The guiding member further includes a supporting seat and a fixing seat. The bottom end of the guiding post is connected to the supporting seat, and the supporting seat protrudes from the top surface of the fixing seat.

8. The phase shifter drive device according to claim 7, characterized in that, A first positioning pin is provided on the bottom surface of the fixing seat, and a first screw hole penetrating through its top surface and bottom surface is provided on the fixing seat. The first positioning pin is used to position the guiding member on the antenna reflector, and the first screw hole is used to fixedly connect the guiding member to the antenna reflector.

9. The phase shifter drive device according to claim 1, characterized in that, At least one set of connecting structures is provided on the transmission rack, and each set of connecting structures connects one transmission plate.

10. The phase shifter drive device according to claim 9, characterized in that, The connecting structure includes a second positioning pin and a second screw hole. A positioning hole corresponding to the second positioning pin and a third screw hole corresponding to the second screw hole are provided on the transmission plate. The second positioning pin is inserted into the positioning hole, and the second screw hole and the third screw hole are screwed together by a screw.

11. The phase shifter drive device according to claim 1, characterized in that, The driving assembly includes a supporting member fixed on the antenna reflector, and a limiting groove for restricting the displacement of the transmission worm in the moving direction of the phase-shifting media is provided on the supporting member. The transmission worm is rotatably arranged in the limiting groove.

12. The phase shifter drive device according to claim 11, characterized in that, The driving assembly includes a transmission shaft connected to the transmission worm, and a limiting hole is provided on the supporting member. The transmission shaft is rotatably inserted into the limiting hole.

13. An antenna, characterized in that, Including the phase shifter transmission device according to any one of claims 1 to 12.

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