Phase shifter and antenna

Abstract

The application relates to a phase shifter and an antenna. The phase shifter comprises a substrate, a main feed line and at least one first sub-feed line are arranged on the substrate, the first sub-feed line comprises an arc-shaped line segment, and the main feed line passes through the center of the arc-shaped line segment of each first sub-feed line; a phase shift plate is arranged and comprises at least one phase shift line, each phase shift line is correspondingly coupled with the arc-shaped line segment of each first sub-feed line; and a limiting assembly is arranged and comprises a first limiting piece and a second limiting piece which are connected to the phase shift plate; the substrate is provided with a first matching part and a second matching part which are arranged at intervals; the first limiting piece is guided and matched with the first matching part, and the second limiting piece is guided and matched with the second matching part along the circumferential direction of the arc-shaped line segment, so that the phase shift plate is connected to the substrate by rotating around the first axis, and the coupling position of each phase shift line and the corresponding arc-shaped line segment can be changed when the phase shift plate rotates relative to the substrate. The phase shifter and the antenna have high reliability.

Description

Technical Field

[0001] This invention relates to the field of antenna communication technology, and in particular to a phase shifter and antenna. Background Technology

[0002] Electrically adjustable antennas are a crucial component of mobile communication networks, and their performance directly impacts network coverage. Electrically adjustable antennas use a motor-driven phase shifter to adjust the antenna's downtilt angle, thereby adjusting the coverage area. Phase shifters in related technologies typically consist of a substrate and a phase shifter plate coupled to the substrate. Specifically, the substrate has arc-shaped feed lines and a main feed line extending to the center of the arc-shaped feed lines. The phase shifter plate has multiple phase shift lines, which couple to different positions on each arc-shaped feed line as the phase shifter plate rotates relative to the substrate. In this phase shifter, holes need to be drilled on the main feed line at positions corresponding to the centers of the feed lines to allow the phase shifter plate and substrate to rotate and connect at these positions. However, with this connection method, line coupling occurs at the center of the feed lines, resulting in a high current density. This leads to high temperatures at this center during actual use, potentially causing burnout and affecting the reliability of the phase shifter. Summary of the Invention

[0003] Therefore, it is necessary to provide a phase shifter and antenna that are easy to lay out, have good heat dissipation, and are highly reliable.

[0004] One embodiment of this application provides a phase shifter, including:

[0005] The substrate has a main feed line and at least one first sub-feed line. The first sub-feed line includes an arc-shaped line segment, and the main feed line passes through the center of the arc-shaped line segment of each first sub-feed line.

[0006] Phase shifting plate, equipped with at least one phase shifting line, wherein each phase shifting line is coupled one-to-one with the arc-shaped line segment of each first feeder; and

[0007] A limiting assembly, comprising a first limiting member and a second limiting member connected to a phase shifter plate;

[0008] When there are multiple first feeder lines, the arc-shaped line segments of each first feeder line share a common center, and the substrate is provided with a first mating part and a second mating part arranged at intervals.

[0009] The first limiting member and the first mating part, and the second limiting member and the second mating part are all guided and mated along the circumferential direction of the arc-shaped line segment, so that the phase shifting plate is rotated and connected to the substrate around the first axis, and the coupling position of each phase shifting line and the corresponding arc-shaped line segment can be changed when the phase shifting plate rotates relative to the substrate. The first axis passes through the center of the arc-shaped line segment.

[0010] In one embodiment, a phase shifter is stacked on a substrate;

[0011] The first mating part is constructed as a first arc-shaped groove that penetrates the substrate, and the circle containing the first arc-shaped groove shares the same center with each arc-shaped line segment;

[0012] The first limiting member is constructed as a columnar structure, and is inserted through and into the first mating part.

[0013] In one embodiment, the second mating part is constructed as a second arc-shaped groove penetrating the substrate, and the circle containing the second arc-shaped groove shares the same center as the circle containing the first arc-shaped groove;

[0014] The second limiting member is constructed as a columnar structure, and it passes through and is inserted into the second mating part.

[0015] In one embodiment, the main feeder includes a main body segment and an extension segment connected to the main body segment. The extension segment extends to the center of each arc-shaped line segment. The first arc-shaped groove and the second arc-shaped groove are both located between the main body segment and the first branch feeder and are distributed on both sides of the extension segment.

[0016] In one embodiment, the arc-shaped line segments of each first feeder are constructed as axisymmetric figures with the second axis as the axis of symmetry;

[0017] The first and second arc-shaped grooves are arranged symmetrically with respect to the second axis and are located on both sides of the extension section, respectively.

[0018] In one embodiment, the limiting assembly further includes a connecting plate disposed on the side of the phase shifter away from the substrate, and the ends of each first limiting member and each second limiting member away from the substrate are connected to the connecting plate.

[0019] In one embodiment, the phase shifter plate is provided with mounting holes;

[0020] The first limiting member passes through the first mating part and is connected to the mounting hole;

[0021] The second limiting member passes through the second mating part and is connected to the mounting hole.

[0022] In one embodiment, there are multiple first limiting members arranged at intervals, each first limiting member is located on the same positioning circle, and the positioning circle where each first limiting member is located shares the same center with each arc-shaped line segment.

[0023] In one embodiment, the first mating part and the second mating part are located at different positions in the radial direction of the arc-shaped line segment.

[0024] In one embodiment, the end face of the substrate facing away from the main feed line is constructed as an arc mating surface, and the arc mating surface forms a second mating part.

[0025] The second limiting member is constructed as a snap-fit ​​structure and engages with the second mating part.

[0026] In one embodiment, the first arcuate groove is located on the side of the main feeder away from the branch feeder.

[0027] In one embodiment, there are three first feeder lines, and the arc-shaped line segments of each first feeder line are located on circles with the same center but different diameters.

[0028] The main feeder includes a main section and an extension section connected to the main section, with the extension section extending to the center of each arc-shaped line segment.

[0029] In one embodiment, the phase shifter further includes at least one through feeder;

[0030] The extension section is the power distribution section, and one end of the direct feeder is electrically connected to the junction of the main section and the power distribution section.

[0031] Another embodiment of this application provides an antenna including the aforementioned phase shifter.

[0032] The beneficial effects of the aforementioned phase shifter and antenna are as follows:

[0033] The substrate has a first mating portion and a second mating portion arranged at intervals. The limiting assembly includes a first limiting member and a second limiting member connected to the phase shifter plate. The first limiting member and the first mating portion, as well as the second limiting member and the second mating portion, are guided and mated along the circumferential direction of the arc-shaped line segment. Thus, when the first mating portion and the second mating portion are located at different radial positions of the arc-shaped line segment, the guiding engagement between the first limiting member and the first mating portion can restrict the rotational movement of the phase shifter plate relative to the substrate at one radial position of the arc-shaped line segment, and the guiding engagement between the second limiting member and the second mating portion can restrict the rotational movement of the phase shifter plate relative to the substrate at another radial position of the arc-shaped line segment. The combination of these two allows the phase shifter plate to be rotatably connected to the substrate around a first axis.

[0034] When the first mating part and the second mating part are located at different circumferential positions on the arc-shaped line segment, the guiding fit between the first limiting member and the first mating part can restrict the rotational movement of the phase shifter relative to the substrate at one circumferential position on the arc-shaped line segment, and the guiding fit between the second limiting member and the second mating part can restrict the rotational movement of the phase shifter relative to the substrate at another circumferential position on the arc-shaped line segment. The combination of these two can enable the phase shifter to be rotatably connected to the substrate around the first axis.

[0035] In this way, the phase shifter and the substrate can be rotated without opening a hole at the center of the first feed line.

[0036] In addition, no hole is made at the center of the first feeder line, so that the main feeder line can be directly extended to the center of each of the arc-shaped line segments. This not only does not affect the layout and continuity of the main feeder line, but also increases the coupling area, which can effectively reduce the current density and temperature at the center, which is beneficial to the line layout and heat dissipation, and improves the reliability of the phase shifter. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the phase shifter provided in an embodiment of this application;

[0038] Figure 2 for Figure 1 A schematic diagram of the exploded structure of a phase shifter;

[0039] Figure 3 A schematic diagram of another structure of the phase shifter provided in the embodiments of this application;

[0040] Figure 4 A schematic diagram of another structure of the phase shifter provided in the embodiments of this application;

[0041] Figure 5 This is a schematic diagram of another structure of the phase shifter provided in the embodiments of this application.

[0042] Explanation of icon numbers:

[0043] 100. Phase shifter;

[0044] 10. Substrate; 11. First mating part; 111. First arc-shaped groove; 12. Second mating part; 122. Second arc-shaped groove; 13. Main feeder; 131. Main body section; 132. Extension section; 14. First branch feeder; 141. Arc-shaped line section; 15. Straight-through branch feeder; 16. DC grounding line;

[0045] 20. Phase shifter board; 21. Phase shifter circuit; 22. Mounting holes;

[0046] 30. Limiting component; 31. First limiting component; 32. Second limiting component; 33. Connecting plate. Detailed Implementation

[0047] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0053] The phase shifter and antenna of the present application are described below with reference to the accompanying drawings.

[0054] Figure 1 This is a schematic diagram of the phase shifter provided in an embodiment of this application. Figure 2 for Figure 1 A schematic diagram of the exploded structure of a phase shifter.

[0055] Reference Figure 1 , Figure 2 The phase shifter 100 provided in this application embodiment includes a substrate 10, a phase shifting plate 20, and a limiting component 30.

[0056] The substrate 10 has a main feed line 13 and at least one first sub-feed line 14. The first sub-feed line 14 includes an arc-shaped line segment 141, and the main feed line 13 passes through the center of the arc-shaped line segment 141 of each first sub-feed line 14. The phase shifter 20 has at least one phase shifter line 21, and each phase shifter line 21 is coupled to the arc-shaped line segment 141 of each first sub-feed line 14 in a one-to-one correspondence. The limiting assembly 30 includes a first limiting member 31 and a second limiting member 32 connected to the phase shifter 20. When there are multiple first sub-feed lines 14, the arc-shaped line segments 141 of each first sub-feed line 14 share a common center, and the substrate 10 has a first mating part 11 and a second mating part 12 arranged at intervals.

[0057] The first limiting member 31 and the first mating part 11, and the second limiting member 32 and the second mating part 12 are all guided and mated along the circumferential direction of the arc-shaped line segment 141, so that the phase shifting plate 20 is rotatably connected to the substrate 10 around the first axis, and the coupling position of each phase shifting line 21 and the corresponding arc-shaped line segment 141 can be changed when the phase shifting plate 20 rotates relative to the substrate 10. The first axis passes through the center of the arc-shaped line segment 141.

[0058] It is understandable that, here, the first axis passes through the center of the arc-shaped line segment 141. When there is only one first feeder line 14, the first axis passes through the center of the arc-shaped line segment 141 of that first feeder line 14. When there are two or more first feeder lines 14, since the arc-shaped line segments 141 of each first feeder line 14 share a common center, the first axis passing through the center of any one arc-shaped line segment 141 is equivalent to passing through the centers of all the arc-shaped line segments 141 of the first feeder lines 14.

[0059] The substrate 10 is provided with a first mating portion 11 and a second mating portion 12 arranged at intervals. The limiting assembly 30 includes a first limiting member 31 and a second limiting member 32 connected to the phase shift plate 20. The first limiting member 31 and the first mating portion 11, and the second limiting member 32 and the second mating portion 12 are all guided and mated along the circumferential direction of the arc-shaped line segment 141. Thus, when the first mating portion 11 and the second mating portion 12 are located at different radial positions of the arc-shaped line segment 141, the guiding engagement between the first limiting member 31 and the first mating portion 11 can restrict the rotational movement of the phase shift plate 20 relative to the substrate 10 at one radial position of the arc-shaped line segment 141, and the guiding engagement between the second limiting member 32 and the second mating portion 12 can restrict the rotational movement of the phase shift plate 20 relative to the substrate 10 at another radial position of the arc-shaped line segment 141. The combination of these two can enable the phase shift plate 20 to be rotatably connected to the substrate 10 around the first axis.

[0060] When the first mating part 11 and the second mating part 12 are located at different circumferential positions of the arc-shaped line segment 141, the guiding engagement between the first limiting member 31 and the first mating part 11 can restrict the rotational movement of the phase shifter 20 relative to the substrate 10 at one circumferential position of the arc-shaped line segment 141, and the guiding engagement between the second limiting member 32 and the second mating part 12 can restrict the rotational movement of the phase shifter 20 relative to the substrate 10 at another circumferential position of the arc-shaped line segment 141. The combination of these two can enable the phase shifter 20 to be rotatably connected to the substrate 10 around the first axis.

[0061] Thus, the phase shifter 20 and the substrate 10 can be rotated without opening a hole at the center of the first feed line 14.

[0062] In addition, no hole is made at the center of the first feeder 14, so that the main feeder 13 can be directly extended to the center of each arc line segment 141. This will not only not affect the layout and continuity of the main feeder 13, but will also improve the matching and increase the coupling area. It can effectively reduce the current density at the center and reduce the temperature at the center, which is beneficial to the line layout and heat dissipation, and improves the power performance and stability of the phase shifter 100.

[0063] The number of first feed lines 14 provided on the substrate 10 can be one or more. In this embodiment, the example is that the number of first feed lines 14 is three. The same applies to other cases where the number of first feed lines 14 is different, and will not be described again here. When the number of first feed lines 14 is three, the arc-shaped line segments 141 of each first feed line 14 are located on circles with the same center but different diameters.

[0064] The substrate 10 can be a PCB board, which may include a double-layer printed circuit board, a dielectric plated board, etc. The curved line segment 141 can be, for example, a... Figure 1 In addition to the wall-line structure shown, it can also be a loop line, a slow wave line, etc.

[0065] The main feeder 13 may include a main section 131 and an extension section 132 connected to the main section 131, the extension section 132 extending to the center of each arc-shaped line section 141.

[0066] When the substrate 10 has both first feeder lines 14 and direct feeder lines 15, the extension section 132 is a power distribution section, and one end of the direct feeder line 15 is electrically connected to the junction of the main body section 131 and the power distribution section. This embodiment is described using the example of three first feeder lines 14 and one direct feeder line 15 simultaneously provided on the substrate 10. The process is similar for other cases where the number of first feeder lines 14 and direct feeder lines 15 on the substrate 10 is different, and will not be repeated here. Additionally, a DC grounding line 16 is connected at the junction of the extension section 132 and the main body section 131.

[0067] In addition, the first mating part 11 and the second mating part 12 are arranged at intervals. It is possible that the first mating part 11 and the second mating part 12 are arranged at intervals in the radial direction of the arc-shaped line segment 141, or the first mating part 11 and the second mating part 12 are arranged at intervals in the circumferential direction of the arc-shaped line segment 141, or the first mating part 11 and the second mating part 12 are arranged at intervals in both the radial and circumferential directions of the arc-shaped line segment 141.

[0068] The phase shifter 20 is provided with at least one phase shifter line 21. Each phase shifter line 21 is coupled to the arc-shaped line segment 141 of each first feeder line 14 in a one-to-one correspondence. In this way, when the phase shifter 20 rotates relative to the substrate 10, the coupling position between each corresponding phase shifter line 21 and the arc-shaped line segment 141 of the first feeder line 14 can be changed, thereby achieving the purpose of changing the phase.

[0069] The first limiting member 31 and the first mating part 11 are guided and mated along the circumferential direction of the arc-shaped line segment 141. This means that the first limiting member 31 restricts the movement trajectory of the first mating part 11 to only move along the circumferential direction of the arc-shaped line segment 141.

[0070] The second limiting member 32 and the second mating part 12 are both guided and mated along the circumferential direction of the arc-shaped line segment 141. This means that the second limiting member 32 restricts the movement trajectory of the second mating part 12 to only move along the circumferential direction of the arc-shaped line segment 141.

[0071] In this embodiment, reference continues to be made to... Figure 1 and Figure 2 A phase shifter 20 is stacked on the substrate 10. The first mating part 11 is constructed as a first arc-shaped groove 111 penetrating the substrate 10, and the circle containing the first arc-shaped groove 111 shares the same center with each arc-shaped line segment 141. The first limiting member 31 is constructed as a columnar structure, and the first limiting member 31 penetrates and is inserted into the first mating part 11. Of course, the end of the first limiting member 31 that faces away from the phase shifter 20 and passes through the first arc-shaped groove 111 may also be provided with a limiting structure to prevent the substrate 10 from detaching from the first limiting member 31.

[0072] By directly stacking and contacting the phase shifter 20 and the substrate 10, coupling between them is facilitated. Furthermore, the spacing between a set of radially opposite groove walls of the first arc-shaped groove 111 along the arc-shaped line segment 141 is approximately the same as the outer diameter of the first limiting member 31, allowing for better positioning of the first limiting member 31 by the first arc-shaped groove 111. Additionally, the number of first limiting members 31 can be set as needed, and there can be one or more. When there are multiple first limiting members 31, they are spaced apart and located on the same positioning circle, with the positioning circle of each first limiting member 31 sharing the same center with each arc-shaped line segment 141.

[0073] This design reduces the length of the slot on the substrate 10, minimizing the impact on the circuit layout and the strength of the substrate 10.

[0074] Furthermore, the second mating part 12 is constructed as a second arc-shaped groove 122 that penetrates the substrate 10. The circle containing the second arc-shaped groove 122 shares the same center as the circle containing the first arc-shaped groove 111 and each arc-shaped line segment 141. The second limiting member 32 is constructed as a columnar structure and is inserted through and into the second mating part 12.

[0075] With this configuration, the first arc groove 111 and the second arc groove 122 can cooperate with the first limiting member 31 and the second limiting member 32 at different positions in the circumferential direction of the arc line segment 141, and the circumferential length of the first arc groove 111 and the second arc groove 122 can also determine the rotation angle of the phase shifting plate 20 relative to the substrate 10.

[0076] Furthermore, the first arc-shaped groove 111 and the second arc-shaped groove 122 are located between the main section 131 and the first branch feeder 14, and are distributed on both sides of the extension section 132. This arrangement can make full use of the interval between the main feeder 13 and the first branch feeder 14, making the structure more compact, without affecting the line layout of the main feeder 13.

[0077] Furthermore, the arc-shaped line segments 141 of each of the first feeder lines 14 are constructed as axisymmetric figures with the second axis as the axis of symmetry. The first arc-shaped slot 111 and the second arc-shaped slot 122 are arranged symmetrically with respect to the second axis and are located on both sides of the extension 132 of the main feeder line 13, respectively. This arrangement facilitates the coupling between the phase-shifting lines 21 on the phase-shifting plate 20 and the arc-shaped line segments 141 of the first feeder lines 14. Moreover, during the rotation of the phase-shifting plate 20 relative to the substrate 10, the first arc-shaped slots 111 and the second arc-shaped slots 122 will not affect the line signal transmission.

[0078] Figure 3 This is a schematic diagram of another structure of the phase shifter 100 provided in an embodiment of this application.

[0079] Reference Figure 3 When the limiting component 30 is improved, the limiting component 30 also includes a connecting plate 33. The connecting plate 33 is disposed on the side of the phase shifting plate 20 away from the substrate 10, and the ends of each first limiting member 31 and each second limiting member 32 away from the substrate 10 are connected to the connecting plate 33. With this configuration, the limiting members are connected as a whole by the connecting plate 33.

[0080] Furthermore, the phase shifter plate 20 is provided with mounting holes 22. The first limiting member 31 passes through the first mating part 11 and is connected to the mounting hole 22. The second limiting member 32 passes through the second mating part 12 and the mounting hole 22. The first limiting member 31 and the second limiting member 32 can be, for example, rivets, which pass through and are riveted into the mounting holes 22.

[0081] Figure 4 This is a schematic diagram illustrating another structure of the phase shifter 100 provided in an embodiment of this application. Figure 5 This is a schematic diagram of another structure of the phase shifter 100 provided in the embodiments of this application. Figure 4 and Figure 5 The structures are similar, the difference is that... Figure 5 The number of the first limiting component 31 is two. Figure 4 The number of the first limiting component 31 is 1.

[0082] Reference Figure 4 As another possible implementation, the first mating part 11 and the second mating part 12 are located at different radial positions on the arc-shaped line segment 141. This provides a better positioning effect for the phase shifter 20 and the substrate 10.

[0083] In a specific implementation, the end face of the substrate 10 facing away from the main feed line 13 is constructed as an arc-shaped mating surface, forming the second mating portion 12. The second limiting member 32 is constructed as a snap-fit ​​structure and is snap-fitted into the second mating portion 12. The circle containing the arc-shaped mating surface shares the same center with the arc-shaped line segment 141.

[0084] Thus, when the phase shifter 20 rotates relative to the substrate 10 around the first axis, the latching structure of the second limiting member 32 can slide and engage with the arc mating surface to work together with the guiding engagement of the first mating part 11 and the first limiting member 31 to limit the position of the phase shifter 20.

[0085] Furthermore, the first arc-shaped groove 111 is located on the side of the main feed line 13 opposite to the first branch feed line 14. This arrangement can minimize the impact of the groove on the circuit layout and the strength of the substrate 10.

[0086] Another aspect of this application embodiment also provides an antenna, which includes the aforementioned phase shifter 100, and the antenna may be, for example, an electrically adjustable antenna.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0088] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A phase shifter, characterized in that, include: A substrate, wherein a main feed line and at least one first branch feed line are provided on the substrate, the first branch feed line includes an arc-shaped line segment, and the main feed line passes through the center of the arc-shaped line segment of each of the first branch feed lines; A phase shifter plate is provided with at least one phase shifting line, and each phase shifting line is coupled one-to-one with the arc-shaped line segment of each of the first feeder lines; and A limiting component, the limiting component including a first limiting member and a second limiting member connected to the phase shifting plate; Wherein, when there are multiple first feeder lines, the arc-shaped line segments of each first feeder line share a common center, and the substrate is provided with a first mating part and a second mating part arranged at intervals; the first limiting member and the first mating part, and the second limiting member and the second mating part are all guided and mated along the circumferential direction of the arc-shaped line segment, so that the phase shifting plate is rotatably connected to the substrate around the first axis, and the coupling position of each phase shifting line and the corresponding arc-shaped line segment can be changed when the phase shifting plate rotates relative to the substrate; The first axis passes through the center of the arc-shaped line segment.

2. The phase shifter according to claim 1, characterized in that, The phase-shifting plate is stacked on the substrate; The first mating part is constructed as a first arc-shaped groove penetrating the substrate, and the circle containing the first arc-shaped groove shares the same center with each of the arc-shaped line segments; The first limiting member is constructed as a columnar structure, and the first limiting member passes through and is inserted into the first mating part.

3. The phase shifter according to claim 2, characterized in that, The second mating part is constructed as a second arc-shaped groove penetrating the substrate, and the circle containing the second arc-shaped groove shares the same center as the circle containing the first arc-shaped groove; The second limiting member is constructed as a columnar structure, and the second limiting member passes through and is inserted into the second mating part.

4. The phase shifter according to claim 3, characterized in that, The main feeder includes a main body section and an extension section connected to the main body section. The extension section extends to the center of each of the arc-shaped line segments. The first arc-shaped groove and the second arc-shaped groove are both located between the main body section and the first branch feeder and are distributed on both sides of the extension section.

5. The phase shifter according to claim 4, characterized in that, The arc-shaped line segment of each of the first feeder lines is constructed as an axisymmetric figure with the second axis as the axis of symmetry; The first arc-shaped groove and the second arc-shaped groove are arranged symmetrically with respect to the second axis.

6. The phase shifter according to claim 3, characterized in that, The limiting component further includes a connecting plate, which is disposed on the side of the phase shifting plate away from the substrate, and the ends of each of the first limiting members and each of the second limiting members away from the substrate are connected to the connecting plate.

7. The phase shifter according to claim 3, characterized in that, The phase shifter plate is provided with mounting holes; The first limiting member passes through the first mating part and is connected to the mounting hole; The second limiting member passes through the second mating part and is connected to the mounting hole.

8. The phase shifter according to claim 2, characterized in that, There are multiple first limiting components, which are arranged at intervals. Each first limiting component is located on the same positioning circle, and the positioning circle where each first limiting component is located shares the same center with each arc-shaped line segment.

9. The phase shifter according to claim 2, characterized in that, The first mating part and the second mating part are located at different positions in the radial direction of the arc-shaped line segment.

10. The phase shifter according to claim 9, characterized in that, The end face of the substrate facing away from the main feed line is constructed as an arc mating surface, and the arc mating surface forms the second mating part; The second limiting member is constructed as a snap-fit ​​structure and engages with the second mating part.

11. The phase shifter according to claim 10, characterized in that, The first arc-shaped groove is located on the side of the main feeder away from the first branch feeder.

12. The phase shifter according to any one of claims 1-6, characterized in that, The number of the first feeder lines is three, and the arc-shaped line segments of each first feeder line are located on circles with the same center but different diameters; The main feeder includes a main body segment and an extension segment connected to the main body segment, the extension segment extending to the center of each of the arc-shaped line segments.

13. The phase shifter according to claim 12, characterized in that, The phase shifter also includes at least one through feeder line; The extension section is a power distribution section, and one end of the direct feeder is electrically connected to the junction of the main section and the power distribution section.

14. An antenna, characterized in that, Includes the phase shifter as described in any one of claims 1-13.

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