Phase shifter and antenna

Abstract

The present invention provides a phase shifting device and an antenna. The phase shifting device includes a phase shifter and a driving component. The phase shifter includes a phase shifting substrate and a phase shifting plate module. An arc-shaped feeder circuit is provided on the phase shifting substrate. The phase shifting plate module is provided with a pivot end rotatably connected to the phase shifting substrate and a free end opposite to the pivot end. The free end is provided with a coupling circuit corresponding to the arc-shaped feeder circuit. When the phase shifting plate module rotates around the pivot axis of its pivot end, the coupling circuit moves along the arc-shaped feeder circuit and is coupled to the arc-shaped feeder circuit. The driving component includes a driving rod rotatably provided on one side of the phase shifter and a transmission member matched with the driving rod. The transmission member moves along the driving rod with the rotation of the driving rod to drive the phase shifting plate module to rotate around its pivot axis relative to the phase shifting substrate. The phase shifting device and the antenna provided by the present invention can realize phase shifting operation by driving the phase shifting plate module to rotate around its pivot axis through the driving component, thereby realizing the adjustment of the electrical downtilt angle of the antenna and effectively saving occupied space.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication equipment, and more specifically, relates to a phase shifting device and an antenna. Background Art

[0002] Antennas, as terminals of mobile communication networks, carry the dual functions of transmitting and receiving electromagnetic waves and are the carriers of mobile communication signal transmission. The effectiveness of their application directly determines the quality of mobile communication networks. Nowadays, electrically adjustable antennas are widely used in mobile communication base stations because they can reduce call loss, reduce interference, and have a high accuracy in adjusting the electrical downtilt angle.

[0003] The electrical downtilt angle of the electrically adjustable antenna is adjusted by a phase shifter. The phase shifter can continuously change the phase of each oscillator in the antenna array by adjusting the antenna feeding network, thereby achieving continuous adjustment of the electrical downtilt angle of the antenna under the premise that the physical position of the antenna remains unchanged. However, the existing phase shifter occupies a large space, while the layout space of the electrically adjustable antenna is limited. Therefore, the existing phase shifter is not conducive to layout and installation in the limited layout space of the electrically adjustable antenna. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a phase shifting device and an antenna to solve the technical problem in the prior art that the phase shifting device occupies a large space.

[0005] To achieve the above object, a first aspect of the present invention provides a phase shifting device, comprising:

[0006] A phase shifter, the phase shifter comprises a phase shift substrate and a phase shift sheet module, the phase shift substrate is provided with an arc-shaped feed line, the phase shift sheet module is provided with a pivot end rotatably connected to the phase shift substrate and a free end opposite to the pivot end, the free end is provided with a coupling line corresponding to the arc-shaped feed line, when the phase shift sheet module rotates around the pivot axis of its pivot end, the coupling line moves along the arc-shaped feed line and is coupled to the arc-shaped feed line;

[0007] The driving assembly includes a driving rod rotatably arranged on one side of the phase shifter and a transmission member matched with the driving rod; the transmission member moves along the driving rod as the driving rod rotates to drive the phase shifter module to rotate around its pivot axis relative to the phase shifter substrate.

[0008] Optionally, a first bevel gear is provided at one end of the driving rod, and the driving assembly further comprises a switching member rotatably provided at one side of the phase shifter and arranged at a certain angle to the driving rod; a second bevel gear meshing with the first bevel gear is provided on the switching member.

[0009] Optionally, the driving rod is a screw rod, and the driving assembly further includes a guide rod arranged on one side of the driving rod; the transmission member includes a threaded portion sleeved on the driving rod, a guide portion sleeved on the guide rod, and a transmission portion cooperating with the phase shifter module.

[0010] Optionally, the phase shifter module includes a pressing piece and a phase shifter body fixed on the pressing piece; a strip groove is provided on the transmission part, and a convex column inserted into the strip groove is provided on the pressing piece, and the convex column can slide along the strip groove.

[0011] Optionally, the transmission portion includes two limiting segments respectively connected to the threaded portion and a connecting segment whose two ends are respectively connected to the two limiting segments; the connecting segment and the two limiting segments are arranged in different planes.

[0012] Optionally, the convex column includes an inserting portion passing through the strip groove and a locking portion provided on a side of the inserting portion facing away from the phase-shifting substrate, and the locking portion is mounted on the limiting section.

[0013] Optionally, the boss can be rotatably connected to the pressing member around its axis.

[0014] Optionally, the phase shifter module further includes a rolling member disposed on the pressing member; the pressing member rolls against the phase shifter substrate through the rolling member.

[0015] Optionally, there are multiple rolling elements, and the multiple rolling elements are distributed on both sides of the phase shifter body.

[0016] A second aspect of the present invention provides an antenna, comprising any one of the above phase shifting devices.

[0017] The beneficial effects of the present invention are as follows: compared with the prior art, the phase shifting device and antenna provided by the present invention include a phase shifter and a driving assembly, which can realize a phase shifting operation by causing the coupling circuit to move along the arc-shaped feeding circuit when the phase shifter module in the phase shifter rotates around its pivot axis, thereby realizing the adjustment of the electrical downtilt angle of the antenna; the driving assembly converts the rotational motion into the rotation of the phase shifter module through the cooperation of the driving rod and the transmission member, the transmission method is simple, can effectively save the occupied space, and is beneficial to the overall layout and installation of the phase shifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0019] Figure 1 A schematic diagram of the structure of a phase shifting device provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a drive assembly provided by an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of another driving assembly provided by an embodiment of the present invention;

[0022] Figure 4 An exploded schematic diagram of the structure of a phase shifter provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 4 The enlarged view of A in FIG.

[0024] Figure 6 An exploded schematic diagram of the structure of a pressing member provided in an embodiment of the present invention;

[0025] Figure 7 Another exploded schematic diagram of the structure of the phase shifter provided in an embodiment of the present invention.

[0026] Among them, the reference numerals in the figure are:

[0027] 1. Phase shifter; 11. Shell; 12. Phase shift substrate; 121. Arc feed line; 13. Phase shifter module; 131. Pressing member; 1311. First pressing seat; 1312. Second pressing seat; 1313. Rotating shaft; 1314. Turn buckle; 132. Phase shifter body; 1321. Coupling circuit; 133. Boss; 1331. Insertion part; 1332. Positioning part; 134. Rolling member; 14. Rubber pad; 15. Bottom cover; 2. Driving assembly; 21. Driving rod; 211. First bevel gear; 22. Transmission member; 221. Threaded part; 222. Guide part; 223. Transmission part; 2231. Strip groove; 2232. Limiting section; 2233. Connecting section; 23. Adapter; 231. Second bevel gear; 24. Guide rod; 25. Slide rail. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] 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 one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] See also Figures 1 to 7 , the phase shifting device provided by the embodiment of the present invention is now described. The phase shifting device includes a phase shifter 1 and a driving assembly 2; the phase shifter 1 includes a phase shifting substrate 12 and a phase shifting plate module 13, the phase shifting substrate 12 is provided with an arc-shaped feeder circuit 121, the phase shifting plate module 13 is provided with a pivot end rotatably connected to the phase shifting substrate 12 and a free end opposite to the pivot end, the free end is provided with a coupling circuit 1321 corresponding to the arc-shaped feeder circuit 121, when the phase shifting plate module 13 rotates around the pivot axis of its pivot end, the coupling circuit 1321 moves along the arc-shaped feeder circuit 121 and is coupled to the arc-shaped feeder circuit 121; the driving assembly 2 includes a driving rod 21 rotatably provided on one side of the phase shifter 1 and a transmission member 22 matched with the driving rod 21; the transmission member 22 moves along the driving rod 21 with the rotation of the driving rod 21 to drive the phase shifting plate module 13 to rotate around its pivot axis relative to the phase shifting substrate 12.

[0033] The phase shifter module 13 of the phase shifter device has a pivot end and a free end, wherein the free end is provided with a coupling circuit 1321, and the phase shifter substrate 12 is provided with a feeding circuit. When the phase shifter module 13 rotates around the pivot axis of its pivot end, the coupling circuit 1321 moves along the arc-shaped feeding circuit 121 and is connected to the arc-shaped feeding circuit 121. Coupling connection; It should be noted that the pivot end of the phase shifter module 13 is electrically connected to the main feed line located on the phase shift substrate 12. When the phase shifter module 13 rotates around the pivot axis of its pivot end and is coupled to the arc feed line 121, the distance between the main feed port of the main feed line and the feed port of the arc feed line 121 changes, thereby producing a phase change effect, realizing a phase shift operation, and adjusting the electrical downtilt angle of the antenna; the driving rod 21 of the driving assembly 2 of the phase shifter device is arranged on one side of the phase shifter 1, and the driving rod 21 and the transmission member 22 cooperate to convert the rotational motion into the rotation of the phase shifter module 13. The transmission method is simple, which can effectively save the occupied space and is beneficial to the overall layout and installation of the phase shifter device. The phase shifter device provided in the embodiment of the present invention has a compact structure, effectively compresses the occupied space, and is beneficial to the assembly and layout of the electrically adjustable antenna.

[0034] In one embodiment, see Figure 2 , a first bevel gear 211 is provided at one end of the driving rod 21, and the driving assembly 2 also includes an adapter 23 rotatably arranged at one side of the phase shifter 1 and arranged at a certain angle to the driving rod 21; a second bevel gear 231 meshing with the first bevel gear 211 is provided on the adapter 23. Specifically, the phase shifter 1 as a whole presents a square layout, and the adapter 23 is vertically arranged with the driving rod 21, that is, the adapter 23 and the driving rod 21 are respectively arranged on two adjacent sides of the phase shifter 1. Through the setting of the adapter 23, a driving power source such as a motor can be connected to one end of the adapter 23 facing away from the driving rod 21, and the driving rod 21 is driven by the rotation of the driving adapter 23; such a setting facilitates the layout and setting of the driving power source, thereby facilitating the application and assembly of the phase shifting device in the electric adjustment antenna.

[0035] In one embodiment, please refer to Figures 1 to 7The driving rod 21 is a screw rod, and the driving assembly 2 further includes a guide rod 24 arranged on one side of the driving rod 21; the transmission member 22 includes a threaded portion 221 sleeved on the driving rod 21, a guide portion 222 sleeved on the guide rod 24, and a transmission portion 223 cooperating with the phase shifting film module 13. The threaded portion 221 of the transmission member 22 is threadedly connected to the driving rod 21, and the guide portion 222 is restricted by the guide rod 24 so that the transmission member 22 can only slide along the guide rod 24. Therefore, when the driving rod 21 rotates, the threaded portion 221 threadedly connected to the driving rod 21 can be driven to move, so that the transmission member 22 moves along the driving rod 21 as a whole, and can drive the phase shifter module 13 to rotate through the transmission portion 223. When the driving rod 21 rotates in different directions, the transmission member 22 can realize reciprocating motion along the driving rod 21; moreover, due to the setting of the guide member, the transmission member 22 can be restricted from generating rotational motion around the driving member, thereby preventing the transmission member 22 from squeezing the phase shifter module 13, avoiding affecting the stability of the gap between the phase shifter module 13 and the movable substrate, and ensuring the capacitive coupling between the coupling line 1321 and the arc-shaped feeding line 121. In another embodiment, such as Figure 3 As shown, the cooperation between the driving rod 21 and the transmission member 22 can also be the cooperation between the screw and the slider. Specifically, the driving rod 21 is provided with a spiral groove, and the transmission member 22 is a slider clamped on the spiral groove. The driving component 2 also includes a slide rail 25 provided on one side of the driving rod 21. The transmission member 22 is slidably connected to the slide rail 25, so that when the driving rod 21 rotates, the slider can be driven to move along the spiral groove. Since the slider is restricted by the slide rail at the same time, the slider can move along the driving rod 21 as the driving rod 21 rotates.

[0036] In one embodiment, please refer to Figures 1 to 5The phase shifter module 13 includes a pressing member 131 and a phase shifter body 132 fixed on the pressing member 131. Specifically, a coupling line 1321 is arranged on the phase shifter body 132. A strip groove 2231 is arranged on the transmission part 223. A convex column 133 inserted into the strip groove 2231 is arranged on the pressing member 131, and the convex column 133 can slide along the strip groove 2231. When the transmission member 22 moves along the driving rod 21 as the driving rod 21 rotates, the transmission member 22 can push the convex column 133 inserted into the strip groove 2231 through the transmission part 223, and drive the pressing member 131 through the convex column 133, and then drive the phase shifter body 132 fixed on the pressing member 131 to move, so as to realize the phase shifting operation. And because the convex column 133 can slide along the strip groove 2231, the rotation of the phase shifter module 13 relative to the phase shifter substrate 12 will not be restricted. Specifically, the transmission part 223 includes two limiting sections 2232 respectively connected to the threaded part 221 and a connecting section 2233 respectively connected to the two limiting sections 2232 at both ends; the connecting section 2233 and the two limiting sections 2232 are arranged in different planes; so that the connecting section 2233 and the two limiting sections 2232 are arranged in different planes can improve the rigidity of the transmission part 223, because the transmission part 223 extends from one side of the driving rod 21 to the phase shifter 1, improving the rigidity of the transmission part 223 can reduce the risk of the transmission part 223 swinging and pushing the clamping member 131 during movement, thereby avoiding the transmission part 223 affecting the stability of the gap between the phase shifter body 132 and the phase shift substrate 12, and can ensure the capacitive coupling between the coupling circuit 1321 and the arc feeding circuit 121. Specifically, the boss 133 includes an insertion portion 1331 passing through the strip groove 2231 and a locking portion 1332 provided on the side of the insertion portion 1331 facing away from the phase-shifting substrate 12, and the locking portion 1332 is mounted on the limiting section 2232; providing the boss 133 with the locking portion 1332 and the insertion portion 1331, and allowing the locking portion 1332 to be mounted on the limiting section 2232 can improve the stability of the boss 133 driven by the transmission portion 223.

[0037] In another embodiment, the transmission part 223 may be provided with a through hole, the pressing member 131 may be provided with a convex column 133 that matches the through hole, and the convex column 133 may slide on the pressing member 131, that is, when the transmission member 22 moves along the driving rod 21 as the driving rod 21 rotates, the transmission member 22 may push the convex column 133 inserted in the through hole through the transmission part 223, and drive the pressing member 131 and further drive the phase shifter body 132 fixed on the pressing member 131 to move through the convex column 133, and at the same time, as the pressing member 131 rotates, the convex column 133 slides on the pressing member 131. In another embodiment, the transmission member 22 may be provided with a convex column 133, the pressing member 131 may be provided with a sliding groove for inserting the convex column 133, and the convex column 133 may slide along the strip groove 2231.

[0038] In one embodiment, the boss 133 can be connected to the pressing member 131 by rotating around its axis. Thus, while the pressing member 131 pushes the boss 133 to move, the boss 133 can rotate by itself, thereby reducing the wear between the boss 133 and the transmission column. Specifically, the pressing member 131 can be provided with a fixed shaft, and the boss 133 is sleeved on the fixed shaft and can rotate around the axis of the fixed shaft. In another embodiment, a ball structure can also be provided between the boss 133 and the fixed shaft, so as to achieve rolling contact between the fixed shaft and the boss 133, thereby reducing the friction resistance when the boss 133 rotates.

[0039] In one embodiment, please refer to Figures 1 to 6 The phase shifter module 13 also includes a rolling member 134 arranged on the pressing member 131; the pressing member 131 rolls and abuts against the phase shift substrate 12 through the rolling member 134; specifically, the pressing member 131 is provided with a pressing groove and a rolling groove, the phase shifter body 132 is arranged in the pressing groove, and the rolling member 134 is arranged in the rolling groove; during the rotation movement of the pressing member 131, the rolling member 134 abuts against the phase shifter substrate 12 to ensure the stability of the position of the pressing member 131, thereby ensuring the stability of the gap between the phase shifter body 132 fixed in the pressing groove and the phase shifter substrate 12, and ensuring the capacitive coupling between the coupling line 1321 and the arc feeding line 121. In addition, the pressing member 131 is in contact with the phase shift substrate 12 through the rolling member 134, that is, the pressing member 131 and the phase shift substrate 12 are in rolling contact, which not only reduces the friction resistance between the phase shift module 13 and the phase shift substrate 12 during the rotation process, but also reduces the mutual wear between the phase shift module 13 and the phase shift substrate 12. Specifically, there are multiple rolling members 134, and the multiple rolling members 134 are distributed on both sides of the phase shift body 132, that is, the rolling members 134 can support the pressing member 131 at symmetrical positions on both sides of the phase shift body 132, thereby improving the stability of the movement of the pressing member 131. Specifically, the rolling member 134 can be a roller or a ball.

[0040] In one embodiment, please refer to Figures 1 to 7The phase shifter 1 further includes a housing 11, a phase shift substrate 12 and a phase shift sheet module 13 are both arranged on the housing 11. Specifically, there are two phase shift substrates 12 and they are arranged on both sides of the housing 11. The phase shift sheet module 13 includes two phase shift sheet bodies 132, and the two phase shift sheet bodies 132 are respectively arranged corresponding to the two phase shift substrates 12 arranged on both sides of the housing 11; the pressing member 131 It includes a first pressing seat 1311 and a second pressing seat 1312, and two phase shifter bodies 132 are respectively fixed in the first pressing seat 1311 and the second pressing seat 1312, and the first pressing seat 1311 and the second pressing seat 1312 are connected to each other; the boss 133 can be only arranged on one of the first pressing seat 1311 and the second pressing seat 1312. When the driving rod 21 drives the transmission member 22 to move and pushes the boss 133, the boss 133 can push the first pressing seat 1311 and the second pressing seat 1312 connected to each other to move and drive the two phase shifter bodies 132 located on both sides of the shell 11 to rotate synchronously, so that the coupling connection of the coupling line 1321 located on both sides of the shell 11 and the arc feeding line 121 remains synchronized, thereby realizing synchronous phase shifting.

[0041] In one embodiment, the second clamping seat 1312 is provided with a rotating shaft 1313 that passes through the shell 11, two phase-shifting substrates 12, two phase-shifting plate bodies 132 and the first clamping seat 1311. The first clamping seat 1311 is fixed to the rotating shaft 1313 by a screw buckle 1314 on the side facing away from the second clamping seat 1312, so that the entire clamping member 131 can rotate axially around the rotating shaft 1313; the first clamping seat 1311 and the second clamping seat 1312 are buckled and connected to each other on the side facing away from the rotating shaft 1313.

[0042] In one embodiment, a rubber pad 14 is provided between the phase shift substrate 12 and the housing 11. The phase shifter 1 further includes a bottom cover 15, which is provided on the side of the second pressing seat 1312 facing away from the housing 11 and is buckled with the housing 11 to protect the phase shift substrate 12.

[0043] Another embodiment of the present invention provides an antenna, comprising any of the above phase shifting devices. The antenna provided by the present invention can achieve phase shifting operation by rotating the phase shifter module 13 in the phase shifter 1 around its pivot axis so that the coupling line 1321 moves along the arc-shaped feeder line 121, thereby adjusting the electrical downtilt angle of the antenna. The driving component 2 converts the rotational motion into the rotation of the phase shifter module 13 through the cooperation of the driving rod 21 and the transmission member 22. The transmission method is simple, can effectively save occupied space, and is conducive to the overall layout and installation of the phase shifter.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A phase shifting device, characterized in that: include: A phase shifter, the phase shifter comprising a phase shift substrate and a phase shifter module, the phase shift substrate being provided with an arc-shaped feeder circuit, the phase shifter module being provided with a pivot end rotatably connected to the phase shift substrate and a free end opposite to the pivot end, the free end being provided with a coupling circuit corresponding to the arc-shaped feeder circuit, and when the phase shifter module is rotated around a pivot axis of its pivot end, the coupling circuit moves along the arc-shaped feeder circuit and is coupled to the arc-shaped feeder circuit; A driving assembly, the driving assembly comprising a driving rod rotatably disposed on one side of the phase shifter and a transmission member matched with the driving rod; the transmission member moves along the driving rod as the driving rod rotates to drive the phase shifter module to rotate around its pivot axis relative to the phase shifter substrate; The driving rod is a screw rod, one end of which is provided with a first bevel gear, and the driving assembly further comprises a guide rod provided at one side of the driving rod; the transmission member comprises a threaded portion sleeved on the driving rod, a guide portion sleeved on the guide rod, and a transmission portion matched with the phase shifting film module; The phase shifter module comprises a pressing member and a phase shifter body fixed on the pressing member; the transmission part is provided with a strip groove, the pressing member is provided with a convex column inserted into the strip groove, and the convex column can slide along the strip groove; The driving assembly also includes a conversion member rotatably arranged on one side of the phase shifter and arranged perpendicular to the driving rod; a second bevel gear meshing with the first bevel gear is provided on the conversion member, and one end of the conversion member facing away from the driving rod is used to connect to a driving power source.

2. The phase shifting device according to claim 1, characterized in that: The transmission part comprises two limiting sections respectively connected to the threaded part and a connecting section whose two ends are respectively connected to the two limiting sections; the connecting section and the two limiting sections are arranged in different planes.

3. The phase shifting device according to claim 2, characterized in that: The convex column includes an inserting portion passing through the strip-shaped groove and a locking portion arranged on a side of the inserting portion facing away from the phase-shifting substrate, and the locking portion is mounted on the limiting section.

4. The phase shifting device according to claim 2, characterized in that: The protruding column is rotatably connected to the pressing member around its axis.

5. The phase shifting device according to any one of claims 1 to 4, characterized in that: The phase shifter module further includes a rolling element arranged on the pressing element; the pressing element rolls against the phase shifter substrate through the rolling element.

6. The phase shifting device according to claim 5, characterized in that: There are multiple rolling elements, and the multiple rolling elements are distributed on both sides of the phase shifting plate body.

7. An antenna, characterized in that: The phase shifting device comprises the phase shifting device according to any one of claims 1 to 6.

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