Phase shifter and antenna

Abstract

The application relates to a phase shifter and an antenna. The phase shifter comprises a substrate, a signal input end arranged on the substrate, a plurality of first signal output ends arranged on the substrate, a pair of first microstrip lines arranged between any two adjacent first signal output ends, a pair of first microstrip lines arranged between the first signal output end adjacent to the signal input end and the signal input end, a plurality of second signal output ends arranged on the substrate, a pair of second microstrip lines arranged between any two adjacent second signal output ends, a pair of second microstrip lines arranged between the second signal output end adjacent to the signal input end and the signal input end, a sliding assembly, the sliding assembly comprising a moving support and a plurality of sliding pieces connected with the moving support, a coupling microstrip line arranged on one side of the sliding piece, each pair of first microstrip lines being coupled with the coupling microstrip line on the corresponding sliding piece, and each pair of second microstrip lines being coupled with the coupling microstrip line on the corresponding sliding piece.

Description

Technical Field

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

[0002] With the development of mobile communication technology, the demand for electrically tunable antennas is becoming increasingly prominent. The advantage of electrically tunable antennas lies in their adjustable downtilt angle, and one of the core components of an electrically tunable antenna is the phase shifter. The function of the phase shifter is to adjust the phase of the antenna element to achieve scanning of the main beam within a certain range, thereby achieving different downtilt angles.

[0003] In related technologies, phase shifters used in miniaturized 5G antennas are mostly one-to-one phase shifters. When the antenna contains multiple radiating elements, multiple phase shifters are required, which increases the cost of the antenna. In addition, the phase shifters in related technologies are also difficult to achieve a large phase difference. Summary of the Invention

[0004] Based on this, a phase shifter and antenna are provided, aiming to reduce the cost of the antenna and achieve a larger phase difference.

[0005] An embodiment of the first aspect of this application provides a phase shifter, the phase shifter comprising: a substrate; a signal input terminal disposed on the substrate; a plurality of first signal output terminals disposed on the substrate, wherein a pair of first microstrip lines are disposed between any two adjacent first signal output terminals, and a pair of first microstrip lines are disposed between the first signal output terminal adjacent to the signal input terminal and the signal input terminal; a plurality of second signal output terminals disposed on the substrate, wherein a pair of second microstrip lines are disposed between any two adjacent second signal output terminals, and a pair of second microstrip lines are disposed between the second signal output terminal adjacent to the signal input terminal and the signal input terminal; and a sliding assembly comprising a movable bracket and a plurality of sliders connected to the movable bracket, wherein a coupling microstrip line is disposed on one side of each slider, and the plurality of sliders are correspondingly disposed with a plurality of pairs of first microstrip lines and a plurality of pairs of second microstrip lines, wherein each pair of first microstrip lines is coupled to a corresponding coupling microstrip line on a slider, and each pair of second microstrip lines is coupled to a corresponding coupling microstrip line on a slider.

[0006] The phase shifter in this embodiment can achieve phase adjustment by controlling the movement of the moving bracket. When the moving bracket moves, it drives each slider to move synchronously. When the slider corresponding to the first microstrip line moves, the coupling connection between the coupled microstrip line on the slider and the first microstrip line changes. When the slider corresponding to the second microstrip line moves, the coupling connection between the coupled microstrip line on the slider and the second microstrip line changes. Thus, the phase adjustment function can be achieved. Since the phase shifter in this embodiment has a signal input terminal, multiple first signal output terminals, and multiple second signal output terminals, that is, it has multiple signal output terminals, when the phase shifter is applied to an antenna containing multiple radiating elements, it can be connected to multiple radiating elements simultaneously, thereby reducing the cost of the antenna.

[0007] Furthermore, in the phase shifter of this embodiment, the phase shift amounts at different output terminals are in a multiple relationship. For example, assuming that when phase adjustment is completed, the phase shift amount of the first signal output terminal adjacent to the signal input terminal is +φ, then the phase shift amounts of the other first signal output terminals are +2φ, +3φ, etc., respectively. Similarly, the phase shift amount of the second signal output terminal adjacent to the signal input terminal is -φ, and the phase shift amounts of the other second signal output terminals are -2φ, -3φ, etc. This allows the phase shifter to achieve a variety of selectable phase differences. When the phase shifter is applied to an antenna, the appropriate output terminal can be selected and connected to the radiating element according to the phase difference requirement. Additionally, a larger phase difference can also be achieved to meet the antenna's requirement for a larger phase difference.

[0008] In some embodiments, the first microstrip line includes a first segment and a second segment, the first segment extending along a first direction and configured to be coupled to the coupled microstrip line, one end of the second segment being connected to the first segment, and the other end of the second segment being connected to the first signal output terminal or the signal input terminal; the second microstrip line includes a third segment and a fourth segment, the third segment extending along the first direction and configured to be coupled to the coupled microstrip line, one end of the fourth segment being connected to the third segment, and the other end of the fourth segment being connected to the second signal output terminal or the signal input terminal.

[0009] In some embodiments, the phase shifter further includes a driving device connected to the movable support, the driving device being used to drive the movable support to move along the first direction.

[0010] In some embodiments, the movable support includes a frame and a plurality of support members, the plurality of support members being configured one-to-one with the plurality of sliding plates, the support members being connected to the frame, and the sliding plates being connected to the support members.

[0011] In some embodiments, the support includes an elastic pressure plate, the slider is connected to the elastic pressure plate, and an insulating film layer is provided on the side of the slider near the substrate.

[0012] In some embodiments, the support member further includes a guide member connected to the elastic pressure plate, the guide member passing through the slide plate; a sliding guide groove is provided on the base plate, the sliding guide groove extends along the first direction, and the guide member is slidably engaged with the sliding guide groove.

[0013] In some embodiments, the guide member includes a guide post and a connecting post, both of which are slidably fitted into the sliding guide groove. The connecting post passes through the sliding guide groove, and a plug is provided at the end of the connecting post away from the elastic pressure plate.

[0014] In some embodiments, at least one of the guide post and the connecting post has a square cross-sectional shape.

[0015] In some embodiments, the support member further includes a snap-fit ​​post connected to the elastic pressure plate, the frame is provided with a snap-fit ​​groove, and the snap-fit ​​post is engaged with the snap-fit ​​groove.

[0016] In some embodiments, the coupled microstrip line has a U-shaped structure, the U-shaped structure including two parallel coupling segments and a connecting segment connecting the two coupling segments, wherein the coupling segments are used for coupling connection with the first microstrip line or the second microstrip line.

[0017] In some embodiments, the phase shifter further includes a third signal output terminal, which is connected to the signal input terminal via a third microstrip line.

[0018] An embodiment of the second aspect of this application provides an antenna that includes the phase shifter in any of the above embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a phase shifter in one embodiment of this application;

[0020] Figure 2 This is a three-dimensional structural diagram of a phase shifter in one embodiment of this application;

[0021] Figure 3 This is a schematic diagram showing the connection between the support member and the slider in one embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a phase shifter in another embodiment of this application.

[0023] Figure label:

[0024] 10. Phase shifter;

[0025] 100. Substrate; 101. Sliding guide groove;

[0026] 200. Signal input terminal;

[0027] 300. First signal output terminal;

[0028] 400. Second signal output terminal;

[0029] 500. Sliding assembly; 510. Movable bracket; 511. Frame; 5111. Slot; 512. Support component; 5121. Elastic pressure plate; 5122. Guide post; 5123. Connecting post; 5124. Plug; 5125. Snap-fit ​​post;

[0030] 520. Slider; 521. Coupled microstrip line; 5211. Coupled section; 5212. Connecting section;

[0031] 600, First microstrip line; 610, First segment; 620, Second segment;

[0032] 700, Second microstrip line; 710, Third segment; 720, Fourth segment;

[0033] 800, Third signal output terminal. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are 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 this application. However, this application can be implemented 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 this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0036] 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 application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly 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," "on top of," and "over" 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.

[0039] 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.

[0040] With the development of mobile communication technology, the demand for electrically tunable antennas is becoming increasingly prominent. The advantage of electrically tunable antennas lies in their adjustable downtilt angle, and one of the core components of an electrically tunable antenna is the phase shifter. The function of the phase shifter is to adjust the phase of the antenna elements to achieve scanning of the main beam within a certain range, thereby achieving different downtilt angles. In related technologies, phase shifters used in miniaturized 5G antennas are mostly single-output phase shifters (with one signal input and one signal output). When the antenna contains multiple radiating elements, multiple phase shifters are required, which increases the cost of the antenna. Furthermore, the phase shifters in related technologies are also difficult to achieve large phase shift amounts.

[0041] To address the aforementioned issues, embodiments of the first aspect of this application propose a phase shifter designed to reduce antenna costs and achieve a larger phase shift.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the phase shifter 10 in the first aspect embodiment of this application includes a substrate 100, a signal input terminal 200, a plurality of first signal output terminals 300, a plurality of second signal output terminals 400, and a sliding component 500. Specifically, the signal input terminal 200 is disposed on the substrate 100, the first signal output terminals 300 are disposed on the substrate 100, and a pair of first microstrip lines 600 are disposed between any two adjacent first signal output terminals 300, and a pair of first microstrip lines 600 is disposed between the first signal output terminal 300 adjacent to the signal input terminal 200 and the signal input terminal 200. The second signal output terminals 400 are disposed on the substrate 100, and a pair of second microstrip lines 700 are disposed between any two adjacent second signal output terminals 400, and a pair of second microstrip lines 700 is disposed between the second signal output terminal 400 adjacent to the signal input terminal 200 and the signal input terminal 200. The sliding assembly 500 includes a movable support 510 and a plurality of sliders 520 connected to the movable support 510. A coupling microstrip line 521 is provided on one side of each slider 520. The plurality of sliders 520 are correspondingly arranged with a plurality of pairs of first microstrip lines 600 and a plurality of pairs of second microstrip lines 700. Each pair of first microstrip lines 600 is coupled to a corresponding slider 520 with a coupling microstrip line 521, and each pair of second microstrip lines 700 is coupled to a corresponding slider 520 with a coupling microstrip line 521.

[0043] In this context, coupling refers to a connection where two conductive components are not in direct contact (e.g., a gap is provided or an insulating medium is present), but energy can still be transferred between them. Common coupling methods include capacitive coupling, optoelectronic coupling, and transformer coupling.

[0044] The phase shifter 10 in this embodiment can achieve phase adjustment by controlling the movement of the moving bracket 510. When the moving bracket 510 moves, it drives each slider 520 to move synchronously. When the slider 520 corresponding to the first microstrip line 600 moves, the coupling connection between the coupling microstrip line 521 on the slider 520 and the first microstrip line 600 changes. When the slider 520 corresponding to the second microstrip line 700 moves, the coupling connection between the coupling microstrip line 521 on the slider 520 and the second microstrip line 700 changes. Thus, the phase adjustment function can be realized. Since the phase shifter 10 in this embodiment has a signal input terminal 200, multiple first signal output terminals 300, and multiple second signal output terminals 400, that is, the phase shifter 10 has multiple signal output terminals, when the phase shifter 10 is applied to an antenna containing multiple radiating elements, the phase shifter 10 can be connected to multiple radiating elements simultaneously, thereby reducing the cost of the antenna.

[0045] Furthermore, in the phase shifter 10 of this embodiment, the phase shift amounts at different output terminals are in a multiple relationship. For example, assuming that when phase adjustment is completed, the phase shift amount of the first signal output terminal 300 adjacent to the signal input terminal 200 is +φ, then the phase shift amounts of the other first signal output terminals 300 are +2φ, +3φ, etc., respectively. Similarly, the phase shift amount of the second signal output terminal 400 adjacent to the signal input terminal 200 is -φ, and the phase shift amounts of the other second signal output terminals 400 are -2φ, -3φ, etc. This allows the phase shifter 10 to achieve a variety of selectable phase differences. When the phase shifter 10 is applied to an antenna, a suitable output terminal can be selected and connected to the radiating element according to the phase difference requirement. Additionally, a larger phase difference can also be achieved to meet the antenna's requirement for a larger phase difference.

[0046] In some embodiments, the first microstrip line 600 includes a first segment 610 and a second segment 620. The first segment 610 extends along a first direction and is used for coupling connection with the coupled microstrip line 521. One end of the second segment 620 is connected to the first segment 610, and the other end of the second segment 620 is connected to the first signal output terminal 300 or the signal input terminal 200. The second microstrip line 700 includes a third segment 710 and a fourth segment 720. The third segment 710 extends along the first direction and is used for coupling connection with the coupled microstrip line 521. One end of the fourth segment 720 is connected to the third segment 710, and the other end of the fourth segment 720 is connected to the second signal output terminal 400 or the signal input terminal 200.

[0047] The first direction can be, for example, the length direction or the width direction of the substrate 100.

[0048] The first segment 610 of the first microstrip line 600 extends along the first direction, meaning that the two first segments 610 of a pair of first microstrip lines 600 are parallel to each other. Based on this, when the sliding component 500 moves along the first direction, the slider 520 corresponding to the first microstrip line 600 also moves along the first direction, causing the position of the coupled microstrip line 521 on the slider 520 relative to the first microstrip line 600 to change. This allows for a phase shift at the first signal output terminal 300.

[0049] Similarly, the third segment 710 of the second microstrip line 700 extends along the first direction, such that the two third segments 710 of a pair of second microstrip lines 700 are parallel to each other. Based on this, when the sliding assembly 500 moves along the first direction, the slider 520 corresponding to the second microstrip line 700 also moves along the first direction, causing the position of the coupled microstrip line 521 on the slider 520 relative to the second microstrip line 700 to change. This allows for the phase shift of the second signal output terminal 400.

[0050] Furthermore, the length and width of the first microstrip line 600 and the second microstrip line 700 can be set according to the power distribution requirements. The first microstrip line 600 and the second microstrip line 700 can take the form of a straight line, a circular arc or a slow wave structure, etc., and this application does not limit them.

[0051] In some embodiments, the phase shifter 10 further includes a drive device (not shown), which is connected to the movable support 510 and drives the movable support 510 to move along a first direction. This achieves phase adjustment of the phase shifter 10. Specifically, the drive device is, for example, a linear slide, an electric actuator, or a combination of a motor and a linear motion pair, wherein the linear motion pair can be a ball screw motion pair.

[0052] In some embodiments, the movable support 510 includes a frame 511 and a plurality of support members 512. Each support member 512 corresponds to a plurality of sliders 520. The support members 512 are connected to the frame 511, and the sliders 520 are connected to the support members 512. With this configuration, when the frame 511 moves along a first direction, the frame 511 can drive the sliders 520 to move along the first direction via the support members 512, thereby achieving phase adjustment.

[0053] In some embodiments, the support member 512 includes an elastic pressure plate 5121, a slider 520 connected to the elastic pressure plate 5121, and an insulating film layer disposed on the side of the slider 520 near the substrate 100. In this embodiment, the elastic pressure plate 5121 presses the slider 520 onto the substrate 100, and the insulating film layer disposed on the side of the slider 520 near the substrate 100 allows for a stable gap between the coupled microstrip line 521 and the first microstrip line 600 or the second microstrip line 700, thereby maintaining good coupling performance between the coupled microstrip line 521 and the first microstrip line 600 or the second microstrip line 700.

[0054] In some embodiments, the support member 512 further includes a guide member connected to the elastic pressure plate 5121, the guide member passing through the slide plate 520. A sliding guide groove 101 is provided on the substrate 100, the sliding guide groove 101 extends along a first direction, and the guide member is slidably engaged with the sliding guide groove 101.

[0055] During the movement of the sliding assembly 500 along the first direction, the guide member connected to the elastic pressure plate 5121 slides along the sliding guide groove 101. Under the guidance of the sliding guide groove 101, it is beneficial to ensure that each support member 512 moves strictly along the first direction, thereby improving the accuracy of phase adjustment.

[0056] Furthermore, the guide component may include a guide post 5122 and a connecting post 5123, both of which are slidably fitted into the sliding guide groove 101. The connecting post 5123 passes through the sliding guide groove 101, and a plug 5124 is provided at the end of the connecting post 5123 away from the elastic pressure plate 5121.

[0057] Since both the guide post 5122 and the connecting post 5123 are slidably fitted into the sliding guide groove 101, both the guide post 5122 and the connecting post 5123 can play a sliding guiding role when the sliding assembly 500 moves. In addition, the connecting post 5123 passes through the sliding guide groove 101, and a plug 5124 is provided at the end of the connecting post 5123 away from the elastic pressure plate 5121. By providing the plug 5124, the connecting post 5123 can establish a connection relationship with the substrate 100. That is to say, through the blocking effect of the plug 5124, the connecting post 5123 cannot be separated from the substrate 100, thereby improving the structural stability between the substrate 100 and the sliding assembly 500.

[0058] Specifically, at least one of the guide post 5122 and the connecting post 5123 has a square cross-sectional shape. That is, at least one of the guide post 5122 and the connecting post 5123 is a square column structure, and the sliding guide groove 101 restricts the square column structure, preventing it from rotating within the sliding guide groove 101. This prevents the elastic pressure plate 5121 and the slider 520 from rotating relative to the base plate 100, thereby further improving the accuracy of phase adjustment.

[0059] Furthermore, the support member 512 also includes a snap-fit ​​post 5125 connected to the elastic pressure plate 5121, and the frame 511 is provided with a snap-fit ​​groove 5111, to which the snap-fit ​​post 5125 is fitted. Specifically, the snap-fit ​​post 5125 can be connected to the snap-fit ​​groove 5111 by an interference fit. Through the cooperation between the snap-fit ​​post 5125 and the snap-fit ​​groove 5111, the installation between the support member 512 and the frame 511 can be realized.

[0060] In some embodiments, the coupled microstrip line 521 has a U-shaped structure, which includes two parallel coupling segments 5211 and a connecting segment 5212 connecting the two coupling segments 5211. The coupling segments 5211 are used for coupling with the first microstrip line 600 or the second microstrip line 700. By providing coupling segments 5211 on the coupled microstrip line 521, the coupling performance between the coupled microstrip line 521 and the first microstrip line 600 or the second microstrip line 700 can be improved.

[0061] In addition, the U-shaped structure of the coupled microstrip line 521 also helps to avoid the guide member, so that the guide member and the coupled microstrip line 521 will not interfere with each other.

[0062] In some embodiments, such as Figure 4 As shown, the phase shifter 10 may further include a third signal output terminal 800, which is connected to the signal input terminal 200 via a third microstrip line. Since the third signal output terminal 800 is directly connected to the signal input terminal 200 via the third microstrip line, meaning there is no slider 520 or coupling microstrip line 521 for adjusting the phase between the third signal output terminal 800 and the signal input terminal 200, the phase shift of the third signal output terminal 800 relative to the signal input terminal 200 is 0.

[0063] In some embodiments, the signal input terminal 200, the first signal output terminal 300, the first microstrip line 600, the second signal output terminal 400, and the second microstrip line 700 are all disposed on the same side of the substrate 100.

[0064] Furthermore, a ground layer may also be provided on the other side of the substrate 100.

[0065] In one embodiment, the first signal output terminal 300 and the second signal output terminal 400 can be configured as through holes, so that the cables connected to the radiating unit can pass through the through holes from the back side of the substrate 100 and be soldered to the corresponding signal output terminals. In other embodiments, a wire groove can also be provided on the side of the substrate 100 where the signal output terminals are provided, and the cables connected to the radiating unit can extend along the wire groove to the location of the signal output terminals and be soldered to the signal output terminals.

[0066] An embodiment of the second aspect of this application provides an antenna including the phase shifter 10 of any of the above embodiments.

[0067] In the antenna of this embodiment, the phase shifter 10 can achieve phase adjustment by controlling the movement of the moving bracket 510. When the moving bracket 510 moves, it drives each slider 520 to move synchronously. When the slider 520 corresponding to the first microstrip line 600 moves, the coupling connection between the coupling microstrip line 521 on the slider 520 and the first microstrip line 600 changes. When the slider 520 corresponding to the second microstrip line 700 moves, the coupling connection between the coupling microstrip line 521 on the slider 520 and the second microstrip line 700 changes. Thus, the phase adjustment function can be realized. Since the phase shifter 10 has a signal input terminal 200, multiple first signal output terminals 300, and multiple second signal output terminals 400, that is, the phase shifter 10 has multiple signal output terminals, when the antenna of this embodiment contains multiple radiating elements, the phase shifter 10 can be connected to multiple radiating elements simultaneously, thereby reducing the cost of the antenna.

[0068] In this phase shifter 10, the phase shift amounts at different output terminals are in a multiple relationship. For example, assuming that when phase adjustment is completed, the phase shift amount of the first signal output terminal 300 adjacent to the signal input terminal 200 is +φ, then the phase shift amounts of the other first signal output terminals 300 are +2φ, +3φ, and so on. Similarly, the phase shift amount of the second signal output terminal 400 adjacent to the signal input terminal 200 is -φ, and the phase shift amounts of the other second signal output terminals 400 are -2φ, -3φ, and so on. This allows the phase shifter 10 to achieve a variety of selectable phase differences, and the appropriate output terminal can be connected to the radiating element according to the phase difference requirement. Furthermore, larger phase differences can also be achieved to meet the antenna's requirements for larger phase differences.

[0069] 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.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A phase shifter, characterized in that, include: substrate; The signal input terminal is disposed on the substrate; Multiple first signal output terminals are disposed on the substrate, and a pair of first microstrip lines are disposed between any two adjacent first signal output terminals. A pair of first microstrip lines are disposed between the first signal output terminal adjacent to the signal input terminal and the signal input terminal. Multiple second signal output terminals are disposed on the substrate, and a pair of second microstrip lines are disposed between any two adjacent second signal output terminals. A pair of second microstrip lines are disposed between the second signal output terminal adjacent to the signal input terminal and the signal input terminal. A sliding assembly includes a movable support and multiple sliders connected to the movable support. One side of each slider is provided with a coupling microstrip line. The multiple sliders are correspondingly arranged with multiple pairs of first microstrip lines and multiple pairs of second microstrip lines. Each pair of first microstrip lines is coupled to a corresponding coupling microstrip line on the slider, and each pair of second microstrip lines is coupled to a corresponding coupling microstrip line on the slider.

2. The phase shifter according to claim 1, characterized in that, The first microstrip line includes a first segment and a second segment. The first segment extends along a first direction and is used to couple with the coupled microstrip line. One end of the second segment is connected to the first segment, and the other end of the second segment is connected to the first signal output terminal or the signal input terminal. The second microstrip line includes a third segment and a fourth segment. The third segment extends along the first direction and is used to couple with the coupled microstrip line. One end of the fourth segment is connected to the third segment, and the other end of the fourth segment is connected to the second signal output terminal or the signal input terminal.

3. The phase shifter according to claim 2, characterized in that, The phase shifter also includes a driving device connected to the movable support, which drives the movable support to move along the first direction.

4. The phase shifter according to claim 2, characterized in that, The movable support includes a frame and multiple support members. The multiple support members are arranged in a one-to-one correspondence with the multiple sliding plates. The support members are connected to the frame, and the sliding plates are connected to the support members.

5. The phase shifter according to claim 4, characterized in that, The support includes an elastic pressure plate, the slide is connected to the elastic pressure plate, and an insulating film layer is provided on the side of the slide near the substrate.

6. The phase shifter according to claim 5, characterized in that, The support member further includes a guide member connected to the elastic pressure plate, the guide member passing through the sliding plate; The substrate is provided with a sliding guide groove, which extends along the first direction, and the guide member is slidably engaged with the sliding guide groove.

7. The phase shifter according to claim 6, characterized in that, The guiding component includes a guide post and a connecting post, both of which are slidably fitted into the sliding guide groove. The connecting post passes through the sliding guide groove, and a plug is provided at the end of the connecting post away from the elastic pressure plate.

8. The phase shifter according to claim 7, characterized in that, At least one of the guide post and the connecting post has a square cross-sectional shape.

9. The phase shifter according to claim 5, characterized in that, The support member also includes a snap-fit ​​post connected to the elastic pressure plate, and the frame is provided with a snap-fit ​​groove, with the snap-fit ​​post cooperating with the snap-fit ​​groove.

10. The phase shifter according to any one of claims 1 to 9, characterized in that, The coupled microstrip line has a U-shaped structure, which includes two parallel coupling segments and a connecting segment connecting the two coupling segments. The coupling segments are used to couple to the first microstrip line or the second microstrip line.

11. The phase shifter according to any one of claims 1 to 9, characterized in that, The phase shifter also includes a third signal output terminal, which is connected to the signal input terminal via a third microstrip line.

12. An antenna, characterized in that, Includes the phase shifter as described in any one of claims 1 to 11.

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