Transmission device for phase adjustment of phase shifter and multi-frequency antenna

Abstract

The present invention discloses a transmission device and a multi-frequency antenna for phase adjustment of a phase shifter, comprising a rack, a gear assembly and an adjustment assembly, wherein the rack can move and is used to drive the dielectric plate of the phase shifter to move; the gear assembly comprises a planetary gear and a sun gear, all of which are meshed with the sun gear, and the planetary gear can mesh with the corresponding rack; the adjustment assembly comprises an adjustment member, which can move to the position of any planetary gear and move the planetary gear along the outer periphery of the sun gear, so that the planetary gear and the corresponding rack can switch between separation and meshing. When it is necessary to adjust the phase of a certain phase shifter, the adjustment member is moved to the planetary gear corresponding to the phase shifter and the planetary gear is moved along the outer periphery of the sun gear, so that the planetary gear is meshed with the rack corresponding to the phase shifter, the sun gear rotates and drives the planetary gear to rotate, and then the planetary gear drives the rack to move, so that the rack drives the dielectric plate of the phase shifter to move, thereby achieving phase adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, and in particular to a transmission device for phase adjustment of a phase shifter and a multi-frequency antenna. Background Art

[0002] A plurality of phase shifters are arranged inside the multi-frequency antenna. In order to adjust the phase of the phase shifter, each phase shifter needs to be equipped with a transmission mechanism, which makes the transmission device for adjusting the phase of the phase shifter extremely complicated. Summary of the invention

[0003] Based on this, it is necessary to provide a transmission device for phase adjustment of the phase shifter and a multi-frequency antenna; the transmission device for phase adjustment of the phase shifter is relatively simpler and can meet the phase adjustment requirements of multiple phase shifters; the multi-frequency antenna includes the aforementioned transmission device for phase adjustment of the phase shifter to meet the phase adjustment requirements of multiple phase shifters.

[0004] The technical solution is as follows:

[0005] One embodiment provides a transmission device for phase adjustment of a phase shifter, comprising:

[0006] A rack, the rack being movable and used to drive the dielectric plate of the phase shifter to move, and at least two racks are provided and correspond one to one to the phase shifters;

[0007] A gear assembly, wherein the gear assembly includes a planetary gear and a sun gear, wherein at least two planetary gears are provided and correspond to the racks one by one, and all the planetary gears are meshed with the sun gears, and the sun gears can rotate and drive the planetary gears to rotate, and the planetary gears can mesh with the corresponding racks;

[0008] An adjusting component, wherein the adjusting component includes an adjusting member, which can be moved to the position of any one of the planetary wheels and move the planetary wheel along the outer circumference of the sun wheel, so that the state between the planetary wheel and the corresponding rack can be switched between a disengaged state and an engaged state.

[0009] In the above-mentioned transmission device for phase adjustment of the phase shifter, when the phase of the phase shifter does not need to be adjusted, the planetary gear and the rack are in a separated state. When the phase of a certain phase shifter needs to be adjusted, the adjusting member is moved to the planetary gear corresponding to the phase shifter and the planetary gear is moved along the outer periphery of the sun gear so that the planetary gear is meshed with the rack corresponding to the phase shifter. The sun gear rotates and drives the planetary gear to rotate, and then the planetary gear drives the rack to move, so that the rack drives the medium plate of the phase shifter to move, thereby realizing the phase adjustment of the phase shifter. Compared with the traditional method in which each phase shifter is equipped with a transmission mechanism, the structure is simpler.

[0010] The technical solution is further described below:

[0011] In one embodiment, the gear assembly further includes a gear shaft, at least two sun gears are provided and correspond one-to-one with the planetary gears, all the sun gears are transmission-connected to the gear shaft, and the gear shaft can rotate and drive all the sun gears to rotate.

[0012] In one embodiment, the gear assembly further includes a retaining frame, which is rotatably mounted on the gear shaft. At least two retaining frames are provided and correspond one-to-one with the planetary gears. The planetary gears are rotatably mounted on the corresponding retaining frames. The adjusting member can be moved to the position of any one of the retaining frames and cause the retaining frame to rotate relative to the gear shaft so that the planetary gears on the retaining frames are meshed and connected with the corresponding racks.

[0013] In one embodiment, the gear assembly further includes a reset member, at least two of which are provided and correspond one to one with the retaining frame, the retaining frame has a mating portion, the reset member abuts against the mating portion so that the planetary gear on the retaining frame and the rack are in a separated state.

[0014] In one embodiment, the retaining frame is arranged on the gear shaft at intervals, the retaining frame has a first abutment body, and the adjusting member has a second abutment body. The adjusting member moves to the position of the retaining frame and makes the second abutment body abut against the first abutment body, so that the retaining frame rotates relative to the gear shaft.

[0015] In one embodiment, the first abutting body has a first transition portion and a first pressing portion, the first pressing portion is protruding toward one side of the adjusting member, and two first transition portions are provided and are respectively arranged on opposite sides of the first pressing portion along the moving direction of the adjusting member;

[0016] The second abutting body has a second transition portion and a second pressing portion, the second pressing portion is protruding toward one side of the retaining frame, and two second transition portions are provided and are respectively arranged on opposite sides of the second pressing portion along the moving direction of the adjusting member.

[0017] In one embodiment, the length of the second abutting body along the moving direction of the adjusting member is smaller than the distance between two adjacent first abutting bodies.

[0018] In one embodiment, the adjustment assembly further includes a screw and a limit rod, the adjustment member is threadedly connected to the screw, and the adjustment member is also slidingly matched with the limit rod, and the screw can rotate and move the adjustment member along the length direction of the screw.

[0019] In one embodiment, the transmission device for phase adjustment of the phase shifter further includes a first support and a second support, the opposite ends of the gear shaft are rotatably connected to the first support and the second support respectively, the opposite ends of the screw rod are rotatably connected to the first support and the second support respectively, and the opposite ends of the limit rod are fixedly connected to the first support and the second support respectively;

[0020] The transmission device for phase adjustment of the phase shifter also includes a first driving member and a second driving member; the first driving member is arranged on the first support or the second support, the first driving member is connected to the gear shaft and is used to drive the gear shaft to rotate; the second driving member is arranged on the first support or the second support, the second driving member is connected to the screw and is used to drive the screw to rotate.

[0021] In one embodiment, the transmission device for limiting adjustment of the phase shifter further comprises a guide member, the guide member is provided with a guide groove, the guide groove is provided with at least two and corresponds to the rack one by one, and the rack is guided and matched with the guide member through the corresponding guide groove;

[0022] Or the transmission device for limiting adjustment of the phase shifter also includes a guide member, at least two of which are provided and correspond one to one with the racks, each of which is provided with a guide groove, and the rack is guided and matched with the corresponding guide member through the guide groove.

[0023] In one of the embodiments, the rack is provided with a limiting protrusion, and the limiting protrusion can abut against the guide member to limit the movement range of the rack.

[0024] In one embodiment, the screw rod, the limiting rod and the gear shaft are all extended along the first direction, all the racks are extended along the second direction, and all the racks are spaced apart along the first direction, and the second direction is perpendicular to the first direction.

[0025] Another embodiment further provides a multi-frequency antenna, comprising a transmission device for phase adjustment of a phase shifter as described in any of the above technical solutions.

[0026] The multi-frequency antenna adopts the aforementioned transmission device for phase adjustment of the phase shifters to perform phase adjustment of multiple phase shifters, thereby reducing the structural complexity of the entire antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] In addition, the drawings are not drawn in a 1:1 scale, and the relative sizes of various elements are drawn only as examples in the drawings and are not necessarily drawn in true scale.

[0030] Figure 1 Schematic diagram of the structure of a transmission device for phase adjustment of a phase shifter in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A rear view of a transmission device for phase adjustment of a phase shifter in an embodiment;

[0032] Figure 3 for Figure 1 A side view of a transmission device for phase adjustment of a phase shifter after removing the first support in the embodiment;

[0033] Figure 4 for Figure 1 Schematic diagram of the abutment cooperation between the first abutment body and the second abutment body in the embodiment.

[0034] Notes on the attached drawings:

[0035] 100, rack; 110, limiting convex portion; 210, planetary gear; 220, sun gear; 230, gear shaft; 240, retaining frame; 241, matching portion; 242, first abutting body; 2421, first transition portion; 2422, first pressing portion; 250, reset member; 310, adjusting member; 311, second abutting body; 3111, second transition portion; 3112, second pressing portion; 320, screw; 330, limiting rod; 410, first support; 420, second support; 510, first driving member; 520, second driving member; 600, guide member; 610, guide groove; 700, bottom plate. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] Please refer to Figures 1 to 3 One embodiment provides a transmission device for phase adjustment of a phase shifter, comprising a rack 100, a gear assembly and an adjustment assembly.

[0039] like Figure 1 As shown, the rack 100 can move and is used to drive the dielectric plate of the phase shifter to move. There are at least two racks 100 and they correspond to the phase shifters one by one.

[0040] Figure 1 In the illustrated embodiment, five racks 100 are provided, and the five racks 100 may correspond to the dielectric plates of five phase shifters to meet the phase adjustment requirements of the five phase shifters.

[0041] Optionally, a connection hole for connecting to a dielectric plate of a phase shifter is provided at the end of the rack 100 .

[0042] It is understandable that:

[0043] When the rack 100 moves in a telescopic manner, since the rack 100 is connected to the dielectric plate, the dielectric plate is driven to move in a telescopic manner, and the dielectric plate moves in a telescopic manner to adjust the phase of the phase shifter.

[0044] like Figures 1 to 3 As shown, the gear assembly includes planetary gears 210 and sun gears 220. There are at least two planetary gears 210 corresponding to the racks 100 one by one. All planetary gears 210 are meshed with the sun gears 220. The sun gears 220 can rotate and drive the planetary gears 210 to rotate. The planetary gears 210 can mesh with the corresponding racks 100.

[0045] like Figure 1 In the illustrated embodiment, the planetary gear 210 is meshed with the outer periphery of the sun gear 220, and the planetary gear 210 is always meshed with the sun gear 220. When the sun gear 220 rotates, it can drive the planetary gear 210 to rotate, and the planetary gear 210 can mesh with the corresponding rack 100 when adjusting the phase.

[0046] like Figure 1 and Figure 2As shown, the adjustment assembly includes an adjustment member 310, which can move to the position of any planetary gear 210 and move the planetary gear 210 along the outer circumference of the sun gear 220, so that the state between the planetary gear 210 and the corresponding rack 100 is switched between a disengaged state and an engaged state.

[0047] like Figure 2 As shown, when the phase of a certain phase shifter needs to be adjusted, the adjusting member 310 can be moved to the position of the planetary gear 210 corresponding to the phase shifter whose phase needs to be adjusted, and the planetary gear 210 is moved along the outer periphery of the sun gear 220, so that the planetary gear 210 reaches a position where it can mesh with the rack 100 and mesh with each other. Afterwards, due to the meshing of the planetary gear 210 and the rack 100, the planetary gear 210 further drives the rack 100 to move telescopically under the rotation of the sun gear 220, thereby realizing the phase adjustment of the phase shifter.

[0048] In the transmission device for phase adjustment of the phase shifter, when the phase of the phase shifter does not need to be adjusted, the planetary gear 210 and the rack 100 are in a separated state. When the phase of a certain phase shifter needs to be adjusted, the adjusting member 310 is moved to the planetary gear 210 corresponding to the phase shifter and the planetary gear 210 is moved along the outer periphery of the sun gear 220, so that the planetary gear 210 is meshed with the rack 100 corresponding to the phase shifter. The sun gear 220 rotates and drives the planetary gear 210 to rotate, and then the planetary gear 210 drives the rack 100 to move, so that the rack 100 drives the medium plate of the phase shifter to move, thereby achieving phase adjustment of the phase shifter. Compared with the traditional method in which each phase shifter is equipped with a transmission mechanism, the structure is simpler; at the same time, the input to output is only transmitted through two stages of gears, and the transmission efficiency is also higher.

[0049] In one embodiment, please refer to Figures 1 to 3 The gear assembly also includes a gear shaft 230. At least two sun gears 220 are provided and correspond one to one with the planetary gears 210. All the sun gears 220 are transmission-connected with the gear shaft 230. The gear shaft 230 can rotate and drive all the sun gears 220 to rotate.

[0050] like Figure 1 As shown, there are five sun gears 220, five corresponding planetary gears 210, and five racks 100, and the sun gears 220, the planetary gears 210 and the racks 100 correspond to each other. When the gear shaft 230 rotates, the gear shaft 230 drives the sun gears 220 thereon to rotate, and the sun gears 220 can drive the corresponding planetary gears 210 to rotate.

[0051] Optionally, the sun gear 220 is a gear fixedly mounted on the gear shaft 230 .

[0052] Optionally, the sun gear 220 is a tooth structure integrally provided on the gear shaft 230 .

[0053] In another embodiment, the gear assembly also includes a gear shaft 230, which is integrally arranged with the sun gear 220 or the sun gear 220 is a tooth structure integrally arranged on the gear shaft 230, and the tooth structure extends along the axial direction of the gear shaft 230, all the planetary gears 210 are meshed with the tooth structure, and all the planetary gears 210 are distributed at intervals along the axial direction of the gear shaft 230.

[0054] In one embodiment, please refer to Figures 1 to 3 The gear assembly also includes a retaining frame 240, which is rotatably mounted on the gear shaft 230. The retaining frame 240 is provided with at least two and corresponds to the planetary gears 210 one by one. The planetary gears 210 are rotatably mounted on the corresponding retaining frames 240. The adjusting member 310 can be moved to the position of any retaining frame 240 and make the retaining frame 240 rotate relative to the gear shaft 230, so that the planetary gears 210 on the retaining frame 240 are meshed and connected with the corresponding rack 100.

[0055] like Figure 3 In the illustrated embodiment, the retaining frame 240 is located on the side of the sun gear 220. On the one hand, the retaining frame 240 is used to always maintain a meshing connection between the planetary gear 210 and the corresponding sun gear 220, and to provide installation support for the planetary gear 210. On the other hand, the retaining frame 240 can also rotate relative to the gear shaft 230, so that the planetary gear 210 on the retaining frame 240 can move along the outer periphery of the sun gear 220 under the action of the adjusting member 310, thereby realizing the switching between the separation state and the meshing state between the planetary gear 210 and the rack 100.

[0056] In one embodiment, please refer to Figure 1 and Figure 3 The gear assembly further includes a reset member 250, at least two reset members 250 are provided and correspond one to one with the retaining frame 240, the retaining frame 240 has a matching portion 241, and the reset member 250 abuts against the matching portion 241 to make the planetary gear 210 on the retaining frame 240 and the rack 100 in a separated state.

[0057] When the phase shifter does not need to be adjusted, the planetary gear 210 needs to be kept separated from the rack 100. To this end, a reset member 250 is provided so that the planetary gear 210 is kept separated from the rack 100 when the phase shifter does not need to be adjusted.

[0058] like Figure 3As shown, the retainer 240 is provided with a matching portion 241, and the matching portion 241 and the planetary gear 210 are respectively located on opposite sides of the corresponding sun gear 220. When the phase of the phase shifter does not need to be adjusted, the reset member 250 puts the retainer 240 in a certain state so that the planetary gear 210 on the retainer 240 is separated from the rack 100; and when the phase of the phase shifter needs to be adjusted, the adjustment member 310 makes the matching portion 241 of the retainer 240 overcome the force applied by the reset member 250, so that the retainer 240 rotates relative to the gear shaft 230, and then the planetary gear 210 is meshed with the rack 100.

[0059] Furthermore, if Figure 3 As shown, the mating portion 241 is equivalent to the tail of the retaining frame 240, and the reset member 250 is a spring sheet, which can press the retaining frame 240 and separate the planetary gear 210 from the rack 100 when no phase adjustment is performed. When the phase needs to be adjusted, the retaining frame 240 overcomes the force applied by the spring sheet under the action of the adjusting member 310, thereby causing the retaining frame 240 to rotate relative to the gear shaft 230 and causing the planetary gear 210 to mesh with the rack 100.

[0060] Of course, the reset member 250 may also be a spring, which will not be described in detail.

[0061] It is understandable that:

[0062] Each retaining frame 240 is provided with a reset member 250 so that all the planetary gears 210 are separated from the corresponding racks 100 in the default state. Only when a phase shifter needs to be phase adjusted, the corresponding planetary gear 210 is meshed with the rack 100 when the retaining frame 240 overcomes the force of the reset member 250. No further details are given.

[0063] In one embodiment, please refer to Figure 2 The retaining frame 240 is spaced apart on the gear shaft 230 , the retaining frame 240 has a first abutting body 242 , the adjusting member 310 has a second abutting body 311 , the adjusting member 310 moves to the position of the retaining frame 240 and makes the second abutting body 311 abut against the first abutting body 242 , so that the retaining frame 240 rotates relative to the gear shaft 230 .

[0064] The abutment and cooperation between the first abutment body 242 and the second abutment body 311 enables the retaining frame 240 to rotate relative to the gear shaft 230 under the pressing action of the adjusting member 310 , thereby enabling the planetary gear 210 to mesh with the rack 100 .

[0065] In one embodiment, please refer to Figure 4The first abutting body 242 has a first transition portion 2421 and a first pressing portion 2422 . The first pressing portion 2422 is protruded toward one side of the adjusting member 310 . Two first transition portions 2421 are provided and are arranged on opposite sides of the first pressing portion 2422 along the moving direction of the adjusting member 310 .

[0066] In one embodiment, please refer to Figure 4 The second abutting body 311 has a second transition portion 3111 and a second pressing portion 3112 , the second pressing portion 3112 is protruded toward one side of the retaining frame 240 , and two second transition portions 3111 are provided and are arranged on opposite sides of the second pressing portion 3112 along the moving direction of the adjusting member 310 .

[0067] like Figure 4 In the perspective shown, the left-right direction is the moving direction of the adjusting member 310, and the axial direction of the gear shaft 230 is also the left-right direction; the first transition portion 2421 is an arc transition structure or an inclined transition structure; the second transition portion 3111 is an arc transition structure or an inclined transition structure. Such an arrangement facilitates smoother abutment and cooperation during the movement of the adjusting member 310 from left to right or from right to left, and facilitates the rotation of the retaining frame 240 relative to the gear shaft 230.

[0068] In one embodiment, the length of the second abutting body 311 along the moving direction of the adjusting member 310 is smaller than the distance between two adjacent first abutting bodies 242 .

[0069] With such arrangement, when the adjusting member 310 moves, during the process of the second abutting body 311 abutting against the first abutting body 242 of a certain retaining frame 240, the second abutting body 311 always abuts only against the first abutting body 242 of the retaining frame 240, and does not abut against the first abutting body 242 of the adjacent retaining frame 240, thereby ensuring that when the adjusting member 310 adjusts the phase of a certain phase shifter, the phase of the adjacent phase shifter will not be adjusted by mistake.

[0070] In one embodiment, please refer to Figures 1 to 3 The adjustment component also includes a screw rod 320 and a limiting rod 330 . The adjustment member 310 is threadedly connected to the screw rod 320 , and the adjustment member 310 is also slidably matched with the limiting rod 330 . The screw rod 320 can rotate and move the adjustment member 310 along the length direction of the screw rod 320 .

[0071] like Figure 1 As shown, the adjusting member 310 is equivalent to a nut. Through the cooperation of the limiting rod 330 and the screw rod 320 , the adjusting member 310 can move along the axial direction of the screw rod 320 to reach different positions of the retaining frame 240 or the planetary gear 210 .

[0072] It is understandable that:

[0073] Since the planetary gear 210 is disposed on the retaining frame 240 , the position of the planetary gear 210 and the position of the retaining frame 240 can be understood as the same position, and will not be described in detail.

[0074] In one embodiment, please refer to Figures 1 to 3 The transmission device for phase adjustment of the phase shifter also includes a first support 410 and a second support 420. The opposite ends of the gear shaft 230 are rotatably connected to the first support 410 and the second support 420 respectively. The opposite ends of the screw rod 320 are rotatably connected to the first support 410 and the second support 420 respectively. The opposite ends of the limit rod 330 are fixedly connected to the first support 410 and the second support 420 respectively.

[0075] In one embodiment, please refer to Figure 1 and Figure 2 The transmission device for phase adjustment of the phase shifter further includes a first driving member 510 and a second driving member 520. Wherein:

[0076] The first driving member 510 is disposed on the first support 410 or the second support 420 . The first driving member 510 is in transmission connection with the gear shaft 230 and is used to drive the gear shaft 230 to rotate.

[0077] The second driving member 520 is disposed on the first support 410 or the second support 420 . The second driving member 520 is drivingly connected to the screw rod 320 and is used to drive the screw rod 320 to rotate.

[0078] Optionally, the first driving member 510 and the second driving member 520 are both disposed on the second support 420 , and the second driving member 520 is located at a height higher than the first driving member 510 .

[0079] Optionally, the first driving member 510 and the second driving member 520 are both driving motors capable of outputting rotational power.

[0080] Optionally, the first driving member 510 outputs rotational power and drives the gear shaft 230 to rotate all the time, so that the planetary gear 210 rotates all the time under the meshing with the sun gear 220. When a phase shifter needs to be adjusted in phase, a signal is sent to the second driving member 520 to output rotational power to drive the screw 320 to rotate, and move the adjusting member 310 on it to the position of the holder 240 corresponding to the phase shifter to be adjusted, so that the holder 240 rotates relative to the gear shaft 230, and finally the planetary gear 210 on the holder 240 is meshed with the corresponding rack 100, and drives the rack 100 to move telescopically, and the rack 100 moves telescopically, and then drives the medium plate of the phase shifter to move telescopically, and completes the phase adjustment of the phase shifter. When the adjustment is completed, the second driving member 520 further drives the screw 320 to rotate, so that the adjusting member 310 leaves the holder 240 and ensures that the holder 240 has been reset and the planetary gear 210 on it is separated from the rack 100.

[0081] In one embodiment, please refer to Figures 1 to 3 The transmission device for limiting adjustment of the phase shifter also includes a guide member 600, which is provided with a guide groove 610. There are at least two guide grooves 610 and they correspond one to one with the rack 100. The rack 100 is guided and matched with the guide member 600 through the corresponding guide grooves 610.

[0082] like Figure 1 and Figure 3 As shown, the guide members 600 are arranged in a strip shape and are provided with two, and each guide member 600 is provided with five guide grooves 610 to correspond one by one to the five racks 100 .

[0083] In another embodiment, the transmission device for limiting adjustment of the phase shifter also includes a guide member 600, at least two of which correspond to the racks 100 one by one, each of which is provided with a guide groove 610, and the rack 100 is guided and matched with the corresponding guide member 600 through the guide groove 610.

[0084] In one embodiment, please refer to Figure 1 and Figure 3 The rack 100 is provided with a limiting protrusion 110 , and the limiting protrusion 110 can abut against the guide member 600 to limit the movement range of the rack 100 .

[0085] like Figure 3 From the perspective shown, the limiting protrusion 110 is located at the bottom of the rack 100 and protrudes downwardly from the rack 100 . When the rack 100 moves left and right, the limiting protrusion 110 abuts against the guide member 600 , thereby limiting the left and right movement range of the rack 100 .

[0086] Alternatively, if Figure 3As shown, two limiting protrusions 110 are provided, and two guiding members 600 are provided. The two limiting protrusions 110 correspond to the two guiding members 600 one by one, respectively, and the two guiding members 600 are located between the two limiting protrusions 110 .

[0087] In one embodiment, please refer to Figure 1 The screw rod 320, the limiting rod 330 and the gear shaft 230 are all extended along the first direction, all the racks 100 are extended along the second direction, and all the racks 100 are spaced apart along the first direction, and the second direction is perpendicular to the first direction.

[0088] Another embodiment further provides a multi-frequency antenna, comprising a transmission device for phase adjustment of a phase shifter as described in any of the above embodiments.

[0089] The multi-frequency antenna uses the aforementioned transmission device for phase adjustment of the phase shifters to perform phase adjustment of multiple phase shifters, thereby reducing the structural complexity of the entire antenna.

[0090] like Figure 1 As shown, the multi-band antenna has a bottom plate 700 , and the first support 410 , the second support 420 , the guide member 600 and the elastic member are all fixed on the bottom plate 700 .

[0091] Optionally, the base plate 700 is a circuit board of a multi-frequency antenna.

[0092] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0093] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0096] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A transmission device for phase adjustment of a phase shifter, characterized in that: include: A rack, the rack being movable and used to drive the dielectric plate of the phase shifter to move, and at least two racks are provided and correspond one to one to the phase shifters; A gear assembly, wherein the gear assembly includes a planetary gear and a sun gear, wherein at least two planetary gears are provided and correspond to the racks one by one, and all the planetary gears are meshed with the sun gears, and the sun gears can rotate and drive the planetary gears to rotate, and the planetary gears can mesh with the corresponding racks; An adjusting component, wherein the adjusting component includes an adjusting piece, and the adjusting piece can be moved to the position of any of the planetary gears and cause the planetary gear to move along the outer circumference of the sun gear, so that the state between the planetary gear and the corresponding rack can be switched between a separated state and an engaged state; the gear assembly also includes a gear shaft, and the sun gear is provided with at least two and corresponds one-to-one with the planetary gears, and all the sun gears are connected to the gear shaft in transmission, and the gear shaft can rotate and drive all the sun gears to rotate.

2. The transmission device for phase adjustment of a phase shifter according to claim 1, characterized in that: The gear assembly also includes a retaining frame, which is rotatably mounted on the gear shaft. At least two retaining frames are provided and correspond one to one with the planetary gears. The planetary gears are rotatably mounted on the corresponding retaining frames. The adjusting member can be moved to the position of any retaining frame and cause the retaining frame to rotate relative to the gear shaft so that the planetary gears on the retaining frame are meshed and connected with the corresponding racks.

3. The transmission device for phase adjustment of a phase shifter according to claim 2, characterized in that: The gear assembly also includes a reset member, at least two of which are provided and correspond one to one with the retaining frame, the retaining frame has a matching portion, the reset member abuts against the matching portion to place the planetary gear on the retaining frame and the rack in a separated state.

4. The transmission device for phase adjustment of a phase shifter according to claim 3, characterized in that: The retaining frame is arranged on the gear shaft at intervals, the retaining frame has a first abutment body, the adjusting member has a second abutment body, and the adjusting member moves to the position of the retaining frame and makes the second abutment body abut against the first abutment body, so that the retaining frame rotates relative to the gear shaft.

5. The transmission device for phase adjustment of a phase shifter according to claim 4, characterized in that: The first abutting body has a first transition portion and a first pressing portion, the first pressing portion is protruding toward one side of the adjusting member, and two first transition portions are provided and are respectively arranged on opposite sides of the first pressing portion along the moving direction of the adjusting member; The second abutting body has a second transition portion and a second pressing portion, the second pressing portion is protruding toward one side of the retaining frame, and two second transition portions are provided and are respectively arranged on opposite sides of the second pressing portion along the moving direction of the adjusting member.

6. The transmission device for phase adjustment of a phase shifter according to claim 5, characterized in that: A length of the second abutting body along a moving direction of the adjusting member is smaller than a distance between two adjacent first abutting bodies.

7. The transmission device for phase adjustment of a phase shifter according to any one of claims 1 to 6, characterized in that: The adjustment assembly also includes a screw and a limiting rod. The adjustment member is threadedly connected to the screw and is also slidably matched with the limiting rod. The screw can rotate and move the adjustment member along the length direction of the screw.

8. The transmission device for phase adjustment of a phase shifter according to claim 7, characterized in that: The transmission device for phase adjustment of the phase shifter also includes a first support and a second support, the opposite ends of the gear shaft are rotatably connected to the first support and the second support respectively, the opposite ends of the screw rod are rotatably connected to the first support and the second support respectively, and the opposite ends of the limit rod are fixedly connected to the first support and the second support respectively; The transmission device for phase adjustment of the phase shifter also includes a first driving member and a second driving member; the first driving member is arranged on the first support or the second support, the first driving member is connected to the gear shaft and is used to drive the gear shaft to rotate; the second driving member is arranged on the first support or the second support, the second driving member is connected to the screw and is used to drive the screw to rotate.

9. The transmission device for phase adjustment of a phase shifter according to claim 7, characterized in that: The transmission device for limiting adjustment of the phase shifter further comprises a guide member, the guide member is provided with a guide groove, the guide groove is provided with at least two and corresponds to the rack one by one, and the rack is guided and matched with the guide member through the corresponding guide groove; Or the transmission device for limiting adjustment of the phase shifter also includes a guide member, at least two of which are provided and correspond one to one with the racks, each of which is provided with a guide groove, and the rack is guided and matched with the corresponding guide member through the guide groove.

10. The transmission device for phase adjustment of a phase shifter according to claim 9, characterized in that: The rack is provided with a limiting protrusion, and the limiting protrusion can abut against the guide member to limit the movement range of the rack.

11. The transmission device for phase adjustment of a phase shifter according to claim 9, characterized in that: The screw rod, the limiting rod and the gear shaft are all extended along a first direction, all the racks are extended along a second direction, and all the racks are spaced apart along the first direction, and the second direction is perpendicular to the first direction.

12. A multi-frequency antenna, characterized in that: A transmission device for phase adjustment of a phase shifter comprising the transmission device as described in any one of claims 1 to 11.

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