Phase shifter

Abstract

The embodiment of the utility model discloses a phase shifter. The phase shifter comprises a supporting plate, a circuit board, a transmission structure and an adjusting structure. Wherein the circuit board is placed on the outer side of the supporting plate, the transmission structure is arranged on the other side of the supporting plate, and the adjusting structure is arranged on the outer side of the circuit board and rotationally connected with the circuit board and the supporting plate. The transmission structure comprises a gear, a rack rod and an arc-shaped inner gear, the gear is connected with the rack rod and the arc-shaped inner gear in a meshed mode, and the arc-shaped inner gear is connected with the adjusting structure. The circuit board and the adjusting structure are respectively provided with a first strip line and a second strip line. The movement of the rack rod drives the gear to rotate and drives the arc-shaped inner gear to rotate, and the adjusting structure rotates along with the arc-shaped inner gear, so that different positions of the second strip line and the first strip line of the adjusting structure are contacted and electrically connected, accurate control over phase change is achieved, interference to the strip lines is reduced, cooperation among a plurality of phase shifters is facilitated, and the service life of the phase shifters is prolonged. And the reliability of the phase shifter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of base station antennas, in particular to a phase shifter. Background Art

[0002] A mobile communication electrically adjustable antenna is one that can adjust its operating parameters without physically moving it. Operators can remotely control the transmission system to change the phase of the internal phase shifter, adjust the radiation beam tilt, and adjust network coverage. Currently, the most widely used phase shifter is the sector phase shifter. In existing technology, a sector phase shifter uses a motor to drive a lead screw for linear motion, which in turn drives a slider connector or a rack rod mounted on the outside of a circuit board to slide, converting the linear motion into circular motion of the sector phase shifter slider.

[0003] However, this transmission process makes it difficult to precisely control phase changes. Furthermore, the connecting components are stacked above the phase shifter's circuit board, taking up space and even obscuring the shifter's striplines, impacting performance. Furthermore, because the slider connector and the curved external gear that meshes with the rack rod are located above the phase shifter's circuit board, the required sliding distance is related to the circuit board's radius. Phase shifters of different sizes have different movement distances, resulting in significant discrepancies and hindering coordination between multiple phase shifters. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a phase shifter that can accurately control phase changes, reduce interference on strip lines, facilitate coordination between multiple phase shifters, and improve phase shifter reliability.

[0005] The present invention provides a phase shifter, comprising:

[0006] Support plate;

[0007] A circuit board is placed outside the support plate, and a first strip line for phase shifting is provided on the circuit board;

[0008] a transmission structure, disposed on a side of the support plate away from the circuit board, the transmission structure comprising a gear, a rack rod, and an arcuate internal gear, the gear being rotatably connected to the support plate and meshingly connected with the rack rod and the arcuate internal gear, respectively, the rack rod and the arcuate internal gear being located on the same side of the gear;

[0009] An adjustment structure is provided on the outside of the circuit board and is rotatably connected to the circuit board and the support plate, an end of the adjustment structure is connected to the outside of the arc-shaped internal gear, a second strip line is provided on the side of the adjustment structure in contact with the circuit board, and the second strip line is in contact and electrically connected to the first strip line;

[0010] Among them, the rack rod moves along its length direction and drives the gear to rotate, the gear drives the arc-shaped internal gear to rotate, and the adjustment structure follows the rotation of the arc-shaped internal gear so that the second belt line contacts and electrically connects different positions of the first belt line to shift the phase.

[0011] Optionally, a connecting portion is extended outwardly in the radial direction from the middle of the arc-shaped internal gear, a connecting piece is protruded from the end of the adjustment structure, and the connecting portion is connected to the connecting piece.

[0012] Optionally, the adjustment structure includes a slide plate and a slide shell, the slide shell is installed on the outer side of the slide plate, and the second strip line electrically connected to the circuit board is provided on the inner side of the slide plate.

[0013] Optionally, the slide housing includes a shell and a hook, the hook is provided at one end of the slide housing close to the connector, and the hook is snap-connected to the inner end surface of the slide plate.

[0014] Optionally, a plurality of pressing grooves are provided on the slide housing, and elastic sheets are provided in the pressing grooves. The elastic sheets push the slide plate so that the second strip line contacts the circuit board.

[0015] Optionally, the phase shifter further includes two limit blocks, the two limit blocks are connected to two ends of the support plate, and the two ends of the rack rod respectively move through the two limit blocks.

[0016] Optionally, a curved edge is formed on one side of the circuit board, and an edge on one side of the support plate is arranged to conform to the edge of the circuit board.

[0017] Optionally, the number of the adjustment structure, the circuit board, and the support plate is two, and they are symmetrically arranged on both sides of the transmission structure in the vertical direction from the outside to the inside, and the arc-shaped internal gear includes two arc-shaped plates with toothed portions, the two arc-shaped plates are connected at both ends and arranged parallel in the vertical direction, the two arc-shaped plates are respectively connected to the two adjustment structures, and the toothed portions of the two arc-shaped plates are meshed with the gear;

[0018] Among them, the movement of the rack rod drives the gear to rotate, and the gear drives the two arc plates to rotate, and the two adjustment structures respectively follow the two arc plates to rotate simultaneously, so that the second strip lines of the two adjustment structures are respectively in contact with different positions of the first strip lines of the two circuit boards to electrically connect and shift the phase.

[0019] Optionally, a connecting portion is provided on the outer side of the arc-shaped plate, and two connecting portions are respectively connected to the two adjustment structures. The rack rod is provided between the two arc-shaped plates and meshes with the gear.

[0020] Optionally, the number of the adjustment structure, the circuit board, the support plate, the gear and the arc-shaped internal gear is two, and they are symmetrically arranged on both sides of the rack rod in the horizontal direction. One adjustment structure, one circuit board, one support plate, one gear and one arc-shaped internal gear constitute a group of parallel phase shifting components. In each group of parallel phase shifting components, the arc-shaped internal gear is connected to the adjustment structure and meshed with the gear. Toothed portions are respectively provided on both sides of the rack rod, which are respectively meshed with the two gears.

[0021] Among them, the movement of the rack rod drives the two gears to rotate, the two gears drive the two arc-shaped internal gears to rotate, and the two adjustment structures respectively follow the two arc-shaped internal gears to rotate simultaneously, so that the second strip lines of the two adjustment structures are in contact with different positions of the first strip lines of the two circuit boards to electrically connect and shift the phase.

[0022] Optionally, the number of the adjustment structures, the circuit boards, and the support plates is four, the number of the arc-shaped internal gears and the gears is two, two adjustment structures, two circuit boards, two support plates, one arc-shaped internal gear, and one gear constitute a set of vertical phase shifting assemblies, the two sets of vertical phase shifting assemblies are symmetrically arranged on both sides of the rack rod in the horizontal direction, the two sides of the rack rod are respectively provided with toothed portions, and the toothed portions are meshed and connected with the two gears of the two sets of vertical phase shifting assemblies;

[0023] Among them, the movement of the rack rod drives the two gears to rotate, and the two gears drive the four arc plates of the two arc-shaped internal gears to rotate, and the four adjustment structures respectively follow the four arc plates to rotate simultaneously, so that the second strip lines of the four adjustment components in the two groups of vertical phase shifting components are respectively in contact with different positions of the first strip lines of the four circuit boards to electrically connect for phase shifting.

[0024] Optionally, the two adjustment structures, two circuit boards, and two support plates of each group of the vertical phase shifting components are symmetrically arranged on both sides of the gear in the vertical direction from the outside to the inside, and each arc-shaped internal gear includes two arc-shaped plates with toothed portions, and the two arc-shaped plates are connected at both ends and arranged parallel to the vertical direction on both sides of the rack rod in the vertical direction, and the toothed portions of the two arc-shaped plates are meshed with the gear, and a connecting portion is provided on the outer side of the arc-shaped plate, and the two connecting portions are respectively connected to the two adjustment structures on both sides of the gear in the vertical direction.

[0025] An embodiment of the present utility model provides a phase shifter, comprising a support plate, a circuit board, a transmission structure and an adjustment structure. The circuit board is placed on the outside of the support plate, the transmission structure is arranged on the other side of the support plate, and the adjustment structure is arranged on the outside of the circuit board and is rotatably connected to the circuit board and the support plate. The transmission structure comprises a gear, a rack rod and an arc-shaped internal gear, the gear is meshed and connected with the rack rod and the arc-shaped internal gear respectively, and the arc-shaped internal gear is connected to the adjustment structure. A first belt line and a second belt line are respectively provided on the circuit board and the adjustment structure. The movement of the rack rod drives the gear to rotate, and drives the arc-shaped internal gear to rotate. The adjustment structure rotates with the arc-shaped internal gear, so that the second belt line of the adjustment structure is electrically connected to different positions of the first belt line, thereby achieving precise control of phase changes, reducing interference on the belt line, facilitating coordination between multiple phase shifters, and improving the reliability of the phase shifter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic structural diagram of a sector-shaped phase shifter in the prior art;

[0028] Figure 2 It is a structural diagram of another sector-shaped phase shifter in the prior art;

[0029] Figure 3 This is an exploded view of a first strip line phase shifter according to an embodiment of the present invention;

[0030] Figure 4 This is a structural diagram of a vertical "one-to-two" phase shifter according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the relationship between the transmission structure and the adjustment structure of an embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the relationship between the transmission structure and the adjustment structure after the gear rod is removed in one embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the transmission structure of an embodiment of the utility model;

[0034] Figure 8 This is a bottom view of the adjustment structure of one embodiment of the utility model;

[0035] Figure 9 This is a schematic diagram of the adjustment structure of an embodiment of the present utility model;

[0036] Figure 10This is a schematic structural diagram of a phase shifter after removing the circuit board and the adjustment structure according to an embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram of a single circuit board phase shifter showing a first strip line according to an embodiment of the present invention;

[0038] Figure 12 This is a front view of a horizontal "one-to-two" phase shifter according to an embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of the back of a horizontal "one-to-two" phase shifter according to an embodiment of the present invention;

[0040] Figure 14 This is a front view of a "one-to-four" phase shifter according to an embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of a "one-to-four" phase shifter according to an embodiment of the present invention, with one side circuit board and support plate removed.

[0042] Description of reference numerals:

[0043] 1-support plate; 2, 2'-circuit board; 21-first belt line; 3-transmission structure; 31-gear; 31'-moving rod; 32, 32'-rack rod; 33-arc-shaped internal gear; 33'-slider connector; 331-connecting part; 332-arc-shaped plate; 34'-slide groove; 35'-arc-shaped external gear; 4-adjustment structure; 4'-slide; 41-slide plate; 42-slide shell; 43-second belt line; 421-housing; 422-hook; 423-elastic sheet; 424-connector; 5-limiting block; 6-rotating shaft; 7-pin shaft. DETAILED DESCRIPTION

[0044] The present application is described below based on the following embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without the description of these details. To avoid obscuring the essence of the present application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0045] Furthermore, persons of ordinary skill in the art will appreciate that the figures provided herein are for illustration purposes only and are not necessarily drawn to scale.

[0046] Unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0047] For ease of explanation, spatially relative terms such as "in," "out," "under," "below," "lower," "above," "upper," and the like are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being "under" or "beneath" another element or feature would then be positioned "above" the other element or feature. Thus, the example term "under" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0048] Unless the context clearly requires otherwise, words like “include”, “comprising” and the like throughout this application should be interpreted as including rather than exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0049] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In addition, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0050] A mobile communication electrically tunable antenna is one that can adjust its operating parameters without physically moving it. This adjustment is achieved by changing the position of the ground terminal of the phase shifter. In an antenna, current forms nodes and antinodes at different locations. Changing the position of the ground terminal causes these nodes and antinodes to shift, thereby changing the phase of the antenna signal. Phase shifters are used to adjust the signal phase. For electrically tunable antennas, the position of the ground terminal affects the effective length of the antenna. This effective length influences the antenna's resonant characteristics, determining its operating frequency and radiation characteristics. Currently, phase shifters include cavity-type phase shifters and sector-shaped phase shifters. Sector-shaped phase shifters are widely used due to their simple structure, low cost, and high reliability.

[0051] The phase shifter changes the current distribution within the antenna by altering its effective length, thereby modifying the phase characteristics of the electrically adjustable antenna. For example, the circuit board 2 of the electrically adjustable antenna has a first stripline 21 on its surface, with its two side edges serving as input and output interfaces for electrical signals. The grounding terminal is located on a second stripline 43 located on the inner side of a slider, which is in electrical contact with the first stripline 21. The first stripline 21 of the sector-shaped phase shifter shares the same curved configuration as the curved edge of the circuit board 2. By changing the position of the grounding terminal connected to the circuit—that is, by rotating one end of the slider along the curved edge of the circuit board 2, the contact point between the second stripline 43 and the first stripline 21 moves along the first stripline 21—the position of the phase shifter's grounding terminal is changed. The movement of the slider is controlled by a transmission structure 3. By remotely controlling the transmission structure 3, the phase of the core component, the phase shifter, is altered, adjusting the radiation beam tilt angle and thereby adjusting the network coverage area.

[0052] The existing sector phase shifter is driven by a motor to drive the screw rod to move linearly, driving the movable rod 31' connected to the screw rod to slide or driving the rack rod 32' set on the outside of the circuit board 2' to slide. Figure 1 A slider connector 33' is fixed to the movable rod 31' and slides with it. The slider connector 33' is usually set between two flat fan-shaped circuit boards 2'. The slider 4' rotates on the two circuit boards 2' respectively, and one end slides in the slide groove 34' of the slider connector 33'. In other words, when the slider connector 33' slides, the sliders 4' on both sides are pushed to rotate in the direction of movement of the slider connector 33'. However, since the slide groove 34' only promotes the rotation of the slider 4', in order to avoid excessive resistance that makes it difficult for the slider 4' to move, the slide groove 34' cannot strictly limit the sliding of one end of the slider 4' in the slide groove 34', but leaves a transmission virtual position, making it difficult to accurately control the phase change.

[0053] For the sector phase shifter using the rack rod 32' disposed outside the circuit board 2', refer to Figure 2 Because the sliding plate 4' must rotate to cover the entire length of the first belt line, the arcuate outer gear 35' that mates with the rack rod 32' is relatively large, potentially obscuring the first belt line and affecting the performance of the sector phase shifter. Furthermore, because the slider connector 33' and the rack rod 32' are both positioned above the surface of the circuit board 2' and are in transmission connection with the end of the sliding plate 4', the length of the lead screw's travel effectively depends on the radius of the circuit board 2's arcuate edge. Phase shifters of different sizes have different travel distances, resulting in significant discrepancies and hindering coordination between multiple phase shifters. Therefore, it is necessary to avoid spurious positions in the phase shifter's transmission structure to improve reliability, reduce the impact of the circuit board 2''s size on the transmission structure's size, and achieve a miniaturized, modular design.

[0054] Figure 3 、 Figure 4 Two different appearances of the phase shifter of the utility model are given respectively, wherein Figure 3 The internal structure of the phase shifter is shown by explosion decomposition.

[0055] Reference Figure 3 、 Figure 4 、 Figure 8 The phase shifter of the embodiment of the present invention includes a support plate 1, a circuit board 2, a transmission structure 3 and an adjustment structure 4. The support plate 1 is used to provide support for the installation and movement of other components. When the phase shifter is connected to other structures of the external electrically adjustable antenna, the support plate 1 provides support for the internal structure of the phase shifter. The circuit board 2 is placed on the outside of the support plate 1, and the side provided with the first strip line 21 faces outward for contact with the adjustment structure 4. An arc-shaped edge is formed on one side of the circuit board 2, and the edge of one side of the support plate 1 is contoured with the edge of the circuit board 2, so as to facilitate phase adjustment by rotating the adjustment structure 4. According to actual conditions, you can choose Figure 3-Figure 4 The different specifications of the support plate 1 and circuit board 2 are shown in the figure. The transmission structure 3 is arranged on the side of the support plate 1 away from the circuit board 2, and includes a gear 31, a rack rod 32 and an arc-shaped internal gear 33. The arc-shaped internal gear 33 is connected to the adjustment structure 4. The transmission gear 31 is driven by an external structure such as a screw, and through the engagement between the gear 31 and the rack rod 32 and the arc-shaped internal gear 33, it drives the adjustment structure 4 to move on the circuit board 2, changes the contact point between the second strip line 43 and the first strip line 21 in the adjustment structure 4, and realizes the change of the phase of the electrically adjustable antenna. According to actual conditions, the phase shifter can also include two limit blocks 5. The two limit blocks 5 are connected to the two ends of the support plate 1, and the two ends of the rack rod 32 move respectively through the two limit blocks 5 to limit the rack rod 32 from moving along the straight line where the two limit blocks 5 are located.

[0056] Reference Figure 8 、 Figure 10, the adjustment structure 4 is arranged on the outside of the circuit board 2 and is rotatably connected to the circuit board 2 and the support plate 1. According to actual conditions, a rotating shaft 6 with elastic buckles at both ends can be set as the rotation axis of the adjustment structure 4. A second strip line 43 is provided on the side of the adjustment structure 4 in contact with the circuit board 2, and the second strip line 43 is in contact and electrically connected with the first strip line 21. One end of the second strip line 43 is electrically connected to the external structure and grounded, that is, the second strip line 43 is the grounding end of the phase shifter. The meshing relationship inside the transmission structure 3 avoids the occurrence of virtual positions, can achieve precise control of phase changes, and improves the reliability of the phase shifter. The transmission structure 3 and the adjustment structure 4 are respectively arranged on both sides of the circuit board 2, so that the transmission structure 3 does not block the first strip line 21, thereby avoiding its influence on the performance of the phase shifter. At the same time, the design of the gear 31 meshing with the rack rod 32 and the arc-shaped internal gear 33 simultaneously makes the length of the rack rod 32 only related to the gear 31, and has nothing to do with the radius of the arc-shaped internal gear 33 and the arc-shaped portion of the circuit board 2. The phase shifter can be more modular in design, facilitating the coordination of multiple phase shifting devices and further improving reliability.

[0057] Reference Figure 3 The first stripline 21 and the curved edge of the circuit board 2 are configured to have the same arc shape. Depending on the actual situation, the arc formed by the first stripline 21 and the arc formed by the edge of the circuit board 2 have the same center. The first stripline 21 extends to both ends of the circuit board 2 and is electrically connected to the input interface and output interface at the edges. The input interface and output interface can be electrically connected to external structures to achieve signal transmission. Figure 3 The arc edge length of the circuit board 2 shown is relatively short, the rotatable range of the adjustment structure 4 thereof is correspondingly relatively small, and the arc length of the arc-shaped internal gear 33 used is also relatively short. Figure 4 A schematic diagram of a phase shifter for a circuit board 2 with a long curved edge is shown, with the first strip line 21 omitted. The adjustment structure 4 of this phase shifter has a wide rotational range, utilizing a long arc-shaped internal gear 33. Because the arc-shaped internal gear 33 is not positioned on the side of the support plate 1 where the circuit board 2 is located, even a long arc of the arc-shaped internal gear 33 does not obstruct the first strip line 21, thus unaffecting the performance of the phase shifter. For different adjustment lengths, arc-shaped internal gears 33 of the same uniform specifications and arc length can be selected, effectively enhancing the modularity of the phase shifter design.

[0058] by Figure 4 Taking the phase shifter of the circuit board 2 with a longer arc edge as an example, Figure 5-10 Schematic diagrams of different phase shifter structures are shown respectively.

[0059] Reference Figure 5-Figure 7The transmission structure 3 includes a gear 31, a rack rod 32 and an arc-shaped internal gear 33. The gear 31 is rotatably connected to the support plate 1 and meshes with the rack rod 32 and the arc-shaped internal gear 33 respectively. The gear 31 rotates with the pin shaft 7 protruding from the support plate 1 as the rotation axis. Depending on the actual situation, an elastic snap-fit ​​structure or the like can also be provided as the rotation axis of the gear 31. The rack rod 32 and the arc-shaped internal gear 33 are located on the same side of the gear 31, and both ends thereof pass through the limit blocks 5 and are limited. When the phase is shifted, the portion of the rack rod 32 provided with the toothed portion basically moves between the two limit blocks 5. A connecting portion 331 extends radially outward from the middle portion of the arc-shaped internal gear 33. A connecting piece 424 is protruded from the end of the slide shell 42 of the adjustment structure 4. The arc-shaped internal gear 33 and the adjustment structure 4 are connected via the connecting portion 331 and the connecting piece 424. For the arcuate internal gear 33, the limit block 5 forms a space between the rack rod 32 and the support plate 1 that can accommodate part of the arcuate internal gear 33, thereby limiting the arcuate internal gear 33 in the vertical direction; in the horizontal direction, the arcuate internal gear 33 is limited by the engagement with the gear 31 and the connection with the adjustment structure 4. Therefore, the arcuate internal gear 33 can rotate without being connected to a physical rotating shaft. The rack rod 32 and the arcuate internal gear 33 are jointly engaged with the gear 31. Therefore, the movement of the rack rod 32 can be achieved through the engagement of the rack rod 32 with the gear 31, and the engagement of the gear 31 with the arcuate internal gear 33 to achieve a transmission without virtual position, so that the phase adjustment can be more precise, thereby improving the reliability of the phase shifter.

[0060] Reference Figure 5-Figure 6 、 Figure 8-Figure 9The adjustment structure 4 includes a slide plate 41 and a slide shell 42. The slide shell 42 is installed on the outside of the slide plate 41. A second strip line 43 is provided on the inside of the slide plate 41 and is electrically connected to the circuit board 2. The portion of the second strip line 43 that is not in contact with the first strip line 21 is electrically connected to the external structure and is grounded. According to actual conditions, the second strip line 43 can be selected to be electrically connected to the external structure at one end near its rotation axis. The slide shell 42 includes a shell 421 and a hook 422. The hook 422 is provided at one end of the slide shell 42 near the connector 424. The hook 422 is snap-connected to the inner end face of the slide plate 41 to limit the slide plate 41. According to the shape of the shell 421 and the hook 422, a groove for avoidance can be provided at the end of the slide plate 41 in contact with the hook 422, or no avoidance can be provided. According to actual conditions, a positioning column may be raised on one side of the housing 421 close to the slide plate 41, corresponding to the positioning groove on the slide plate 41, so as to realize the positioning of the slide plate 41. A positioning edge may also be extended from the housing 421 to wrap around the edge of the slide plate 41, so as to further limit the slide plate 41 and protect the edge of the slide plate 41. The connector 424 is provided at the end of the housing 421. According to actual conditions, the connector 424 may be provided on both sides of the hook 422 or at the front end of the hook 422 to realize the connection between the adjustment structure 4 and the connecting portion 331 of the arc-shaped internal gear 33. Through the connection between the connector 424 and the connecting portion 331, the adjustment structure 4 rotates with the arc-shaped internal gear 33, so that the second belt line 43 is electrically connected to different positions of the first belt line 21, thereby realizing precise control of the phase change and improving the reliability of the phase shifter.

[0061] In some embodiments, reference Figure 9 The housing 421 of the slider housing 42 is provided with multiple compression grooves. Elastic sheets 423 are positioned within the compression grooves, forming a U- or V-shaped shape. Depending on the actual situation, the number of elastic sheets 423 can be two, three, or more, and their positions correspond to the locations on the second stripline 43 where they contact the first stripline 21. The elastic sheets 423 push the slider plate 41 to ensure close contact between the second stripline 43 and the circuit board 2, preventing any loose connections in the circuit that could interfere with grounding and affect the performance of the phase shifter.

[0062] For phase shifters with only a single circuit board, refer to Figure 11 and Figure 4-Figure 5 、 Figure 7 , Figure 11The structure of the first belt line 21 on the phase shifter is shown in the figure. The rack rod 32 is limited by two limit blocks 5, moves along its length and drives the gear 31 meshing with it to rotate. The rotation of the gear 31 drives the arc-shaped internal gear 33 meshing with it to rotate. The arc-shaped internal gear 33 drives the adjustment structure 4 to rotate as a whole around the rotating shaft 6 through the connecting part 331 and the connecting piece 424. At this time, the rotation of the arc-shaped internal gear 33 is coaxial with the rotation of the adjustment structure 4, that is, it rotates around the axis of the rotating shaft 6. The slide plate 41 rotates with the arc-shaped internal gear 33, and at the same time, the elastic sheet 423 presses the slide plate 41 so that the second belt line 43 can be in close contact with the first belt line 21. The second belt line 43 is in contact with the first belt line 21 at different positions and is electrically connected, ultimately achieving phase shifting. Because the arcuate internal gear 33 is connected to the adjustment structure 4 via the connecting portion 331 and the connector 424, the meshing dimensions and detailed specifications of the teeth of the arcuate internal gear 33 and the gear 31 can be modularly configured for phase shifters of varying sizes. For circuit boards 2 with varying radii, only the length or structure of the connecting portion 331 and the connector 424 need to be modified, without requiring any changes to the teeth of the arcuate internal gear 33 or the gear 31. This not only enables precise control of phase changes but also facilitates coordination between multiple phase shifters, improving their reliability.

[0063] Depending on the actual phase adjustment requirements, various drive modes can be implemented by combining and installing the various components of the phase shifter. For example, a single rack rod 32 can be used to adjust the phase of two circuit boards 2, a "one-to-two" mode; or a single rack rod 32 can be used to adjust the phase of four circuit boards 2, a "one-to-four" mode. The "one-to-two" mode can be achieved by arranging the two circuit boards 2 vertically or horizontally.

[0064] For a phase shifter that realizes a "one-to-two" mode by vertically arranging two circuit boards 2, refer to Figure 4-7, the number of its adjustment structure 4, circuit board 2 and support plate 1 is two, and they are symmetrically arranged on both sides of the transmission structure 3 in the vertical direction from the outside to the inside. Two limit blocks 5 are respectively arranged between the two support plates 1, and the two ends of the rack rod 32 pass through the two limit blocks 5 to be limited. Its toothed portion is arranged on the side facing the gear 31 and meshes with the gear 31. The arc-shaped internal gear 33 includes two arc-shaped plates 332 with toothed portions. The two arc-shaped plates 332 are connected at both ends and arranged parallel in the vertical direction, and their toothed portions are both meshed and connected with the gear 31. A connecting portion 331 is provided on the outside of each arc-shaped plate 332, and the two connecting portions 331 are respectively connected to the two connecting pieces 424 of the two adjustment structures 4. According to actual conditions, for each connecting portion 331, the length of the connecting piece 424 extends to its inner end face and stops without extending further. In other words, the connecting pieces 424 of the two connecting portions 331 are not connected. The rack rod 32 is disposed between the two arc-shaped plates 332. When the rack rod 32 moves to drive the arc-shaped internal gear 33 to rotate, the two connecting parts 331 will not hinder the movement of the rack rod 32. In other words, the two arc-shaped plates 332 and the two adjustment structures 4 are symmetrically disposed on both sides of the rack rod 32 in the vertical direction.

[0065] When performing phase shift, refer to Figure 4-Figure 7 The rack rod 32 moves, driving the gear 31 to rotate. The gear 31 then rotates the two curved plates 332 on either side of the rack rod 32. Simultaneously, the two adjustment structures 4 rotate in unison with the two curved plates 332, causing the second strip lines 43 of the two adjustment structures 4 to contact and electrically connect with different locations of the first strip lines 21 of the two circuit boards 2, respectively, to achieve phase shifting. By positioning the rack rod 32 between the two circuit boards 2 and driving the gear 31 to rotate the two curved plates 332, the adjustment structures 4 are driven. This allows the two circuit boards 2 of the phase shifter to be mounted vertically. The two circuit boards 2 can share a single gear 31 and rack rod 32, improving space utilization and making the spatial layout more compact, thereby miniaturizing the phase shifter.

[0066] For a phase shifter that realizes a "one-to-two" mode by using two circuit boards 2 arranged in parallel, refer to Figure 12-13, the number of the adjusting structure 4, the circuit board 2, the support plate 1, the gear 31 and the arc-shaped internal gear 33 is two, and they are symmetrically arranged on both sides of the rack rod 32 in the horizontal direction, wherein one adjusting structure 4, one circuit board 2, one support plate 1, one gear 31 and one arc-shaped internal gear 33 constitute a group of parallel phase-shifting components. The two limit blocks 5 are respectively connected to the two support plates 1, and the rack rod 32 is provided with toothed portions on both sides facing the two groups of parallel phase-shifting components, which are respectively meshed with the two gears 31. According to actual conditions, when the two circuit boards 2 are large in size and the gear 31 is far away from the edge of the circuit board 2, the part of the rack rod 32 with the toothed portion can be extended and translated to both sides, so that the gear 31 of each group of parallel phase-shifting components can be meshed with the gear 31 rod. The arc-shaped internal gear 33 in each group of parallel phase-shifting components is connected to the adjusting structure 4 and meshed with the gear 31. For the arc-shaped internal gear 33, such as Figure 13 As shown, it can be vertically limited by the rack rod 32 and the support plate 1. The two gears 31 rotate around the two pins 7 of the two support plates 1 respectively. Depending on the actual situation, when the pins 7 are provided with elastic buckles at the ends, the gears 31 are limited on the support plate 1 by the elastic buckles; when the pins 7 are not provided with elastic buckles at the ends, the gears 31 are vertically limited by the cooperation of the external structure and the support plate 1 during installation.

[0067] When performing phase shift, refer to Figure 12-13 The rack rod 32 moves to drive the two gears 31 to rotate, and the two gears 31 drive the two arc-shaped internal gears 33 to rotate. The two adjustment structures 4 respectively follow the two arc-shaped internal gears 33 and rotate simultaneously, so that the second strip lines 43 of the two adjustment structures 4 are in contact with different positions of the first strip lines 21 of the two circuit boards 2 to electrically connect and shift the phase.

[0068] For the phase shifter using four circuit boards 2 to realize the "one-to-four" mode, refer to Figure 14-15 The number of adjustment structures 4, circuit boards 2, and support plates 1 is four, and the number of arc-shaped internal gears 33 and gears 31 is two. Two adjustment structures 4, two circuit boards 2, two support plates 1, one arc-shaped internal gear 33, and one gear 31 constitute a set of vertical phase-shifting components. The two sets of vertical phase-shifting components are symmetrically arranged on both sides of the rack rod 32 in the horizontal direction. Each limit block 5 is connected to the two support plates 1 in the vertical and horizontal directions, that is, the four support plates 1 are respectively connected to the four corners of each limit block 5 on the vertical interface. The rack rod 32 is provided with teeth on both sides facing the two sets of parallel phase-shifting components, which are respectively engaged with the two gears 31. According to actual conditions, when the two circuit boards 2 are large in size and the gears 31 are far from the edges of the circuit boards 2, the portion of the rack rod 32 with the teeth can be extended and translated to both sides so that the gears 31 of each set of vertical phase-shifting components can be engaged with the gear 31 rod.

[0069] Reference Figure 15 The two adjustment structures 4, two circuit boards 2, and two support plates 1 of each set of vertical phase shifting components are symmetrically arranged on both sides of the gear 31 in the vertical direction from the outside to the inside. Each arc-shaped internal gear 33 includes two arc-shaped plates 332 with toothed portions. The two arc-shaped plates 332 are connected at both ends and arranged parallel to the rack rod 32 in the vertical direction, and their toothed portions are meshed with the gear 31. A connecting portion 331 is provided on the outside of each arc-shaped plate 332. The two connecting portions 331 are respectively connected to the two connecting pieces 424 of the two adjustment structures 4. For each connecting portion 331, the length of the connecting piece 424 extends to its inner end surface and stops without extending further. The rack rod 32 is arranged between the two arc-shaped plates 332. When the rack rod 32 moves to drive the arc-shaped internal gear 33 to rotate, the two connecting portions 331 will not hinder the movement of the rack rod 32.

[0070] When performing phase shift, refer to Figure 14-15 The rack rod 32 moves to drive the two gears 31 of the two vertical phase shifting assemblies to rotate. The two gears 31 drive the four curved plates 332 of the two arc-shaped internal gears 33 to rotate. The four adjustment structures 4 rotate simultaneously with the four curved plates 332, respectively, so that the second strip lines 43 of the four adjustment assemblies in the two vertical phase shifting assemblies contact and electrically connect with different positions of the first strip lines 21 of the four circuit boards 2 to achieve phase shifting. For each set of vertical movement assemblies, a rack rod 32 is disposed between the two circuit boards 2. The gear 31 drives the two curved plates 332 to rotate, driving the adjustment structure 4. The two circuit boards 2 can share a single gear 31 and rack rod 32, improving the space utilization of the phase shifter, making the spatial layout more compact, and achieving miniaturization of the phase shifter.

[0071] An embodiment of the present application provides a phase shifter, comprising a support plate, a circuit board, a transmission structure and an adjustment structure. The circuit board is placed on the outside of the support plate, the transmission structure is arranged on the other side of the support plate, and the adjustment structure is arranged on the outside of the circuit board and is rotatably connected to the circuit board and the support plate. The transmission structure comprises a gear, a rack rod and an arc-shaped internal gear, the gear is meshed and connected with the rack rod and the arc-shaped internal gear respectively, and the arc-shaped internal gear is connected to the adjustment structure. A first belt line and a second belt line are respectively provided on the circuit board and the adjustment structure. The movement of the rack rod drives the gear to rotate, and drives the arc-shaped internal gear to rotate. The adjustment structure rotates with the arc-shaped internal gear, so that the second belt line of the adjustment structure is electrically connected to different positions of the first belt line, thereby achieving precise control of phase changes, reducing interference on the belt line, facilitating coordination between multiple phase shifters, and improving the reliability of the phase shifter.

[0072] The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A phase shifter, characterized in that: The phase shifter comprises: Support plate (1); A circuit board (2) is placed outside the support plate (1), and a first strip line (21) for phase shifting is provided on the circuit board (2); A transmission structure (3) is arranged on a side of the support plate (1) away from the circuit board (2), and the transmission structure (3) includes a gear (31), a rack rod (32) and an arc-shaped internal gear (33); the gear (31) is rotatably connected to the support plate (1) and is meshed with the rack rod (32) and the arc-shaped internal gear (33), respectively; the rack rod (32) and the arc-shaped internal gear (33) are located on the same side of the gear (31); An adjusting structure (4) is arranged outside the circuit board (2) and is rotatably connected to the circuit board (2) and the support plate (1); an end of the adjusting structure (4) is connected to the outside of the arc-shaped internal gear (33); a second strip line (43) is provided on the side of the adjusting structure (4) in contact with the circuit board (2); and the second strip line (43) is in contact and electrically connected with the first strip line (21); The rack rod (32) moves along its length direction and drives the gear (31) to rotate, the gear (31) drives the arc-shaped internal gear (33) to rotate, and the adjustment structure (4) follows the rotation of the arc-shaped internal gear (33) so that the second belt line (43) and the first belt line (21) are in electrical contact at different positions to shift phase.

2. The phase shifter according to claim 1, wherein: A connecting portion (331) extends radially outward from the middle of the arc-shaped internal gear (33), a connecting piece (424) protrudes from the end of the adjustment structure (4), and the connecting portion (331) is connected to the connecting piece (424).

3. The phase shifter according to claim 2, wherein: The adjustment structure (4) comprises a slide plate (41) and a slide shell (42); the slide shell (42) is mounted on the outside of the slide plate (41); and the second strip line (43) electrically connected to the circuit board (2) is provided on the inside of the slide plate (41).

4. The phase shifter according to claim 3, wherein: The slide housing (42) comprises a housing (421) and a hook (422). The hook (422) is arranged at one end of the slide housing (42) close to the connecting member (424). The hook (422) is snap-connected to the inner end surface of the slide plate (41).

5. The phase shifter according to claim 3, wherein: A plurality of pressing grooves are provided on the slide housing (42), and elastic sheets (423) are provided in the pressing grooves. The elastic sheets (423) push the slide plate (41) so that the second strip line (43) contacts the circuit board (2).

6. The phase shifter according to claim 1, wherein: The phase shifter further comprises two limit blocks (5), the two limit blocks (5) being connected to the two ends of the support plate (1), and the two ends of the rack rod (32) respectively moving through the two limit blocks (5).

7. The phase shifter according to claim 1, wherein: An arc-shaped edge is formed on one side of the circuit board (2), and an edge on one side of the support plate (1) is arranged in the same shape as an edge of the circuit board (2).

8. The phase shifter according to any one of claims 1 to 7, characterized in that: The number of the adjustment structure (4), the circuit board (2) and the support plate (1) is two, and they are symmetrically arranged on both sides of the transmission structure (3) in a vertical direction from the outside to the inside. The arc-shaped internal gear (33) includes two arc-shaped plates (332) with toothed portions. The two arc-shaped plates (332) are connected at both ends and arranged in parallel along the vertical direction. The two arc-shaped plates (332) are respectively connected to the two adjustment structures (4), and the toothed portions of the two arc-shaped plates (332) are meshed and connected with the gear (31); The rack rod (32) moves to drive the gear (31) to rotate, and the gear (31) drives the two arc plates (332) to rotate, and the two adjustment structures (4) respectively follow the two arc plates (332) and rotate simultaneously, so that the second strip lines (43) of the two adjustment structures (4) are respectively in contact with different positions of the first strip lines (21) of the two circuit boards (2) to electrically connect and perform phase shifting.

9. The phase shifter according to claim 8, wherein: A connecting portion (331) is provided on the outside of the arc-shaped plate (332), and the two connecting portions (331) are respectively connected to the two adjustment structures (4). The rack rod (32) is provided between the two arc-shaped plates (332) and meshes with the gear (31).

10. The phase shifter according to any one of claims 1 to 7, characterized in that: The regulating structure (4), the circuit board (2), the support plate (1), the gear (31) and the arc-shaped internal gear (33) are two in number and are symmetrically arranged on both sides of the rack rod (32) in the horizontal direction. One regulating structure (4), one circuit board (2), one support plate (1), one gear (31) and one arc-shaped internal gear (33) form a group of parallel phase shifting components. In each group of the parallel phase shifting components, the arc-shaped internal gear (33) is connected to the regulating structure (4) and meshed with the gear (31). Toothed portions are respectively provided on both sides of the rack rod (32) and meshed with the two gears (31). The rack rod (32) moves to drive the two gears (31) to rotate, the two gears (31) drive the two arc-shaped internal gears (33) to rotate, and the two adjustment structures (4) respectively follow the two arc-shaped internal gears (33) and rotate simultaneously, so that the second strip lines (43) of the two adjustment structures (4) are in electrical contact with different positions of the first strip lines (21) of the two circuit boards (2) to shift phase.

11. The phase shifter according to any one of claims 1 to 7, characterized in that: The number of the adjusting structures (4), the circuit boards (2) and the supporting plates (1) is four, the number of the arc-shaped internal gears (33) and the gears (31) is two, two adjusting structures (4), two circuit boards (2), two supporting plates (1), one arc-shaped internal gear (33) and one gear (31) form a set of vertical phase shifting components, the two sets of vertical phase shifting components are symmetrically arranged on both sides of the rack rod (32) in the horizontal direction, the two sides of the rack rod (32) are respectively provided with toothed portions, and the toothed portions are meshed and connected with the two gears (31) of the two sets of vertical phase shifting components; The rack rod (32) moves to drive the two gears (31) to rotate, and the two gears (31) drive the four arc-shaped plates (332) of the two arc-shaped internal gears (33) to rotate, and the four adjustment structures (4) respectively follow the four arc-shaped plates (332) and rotate simultaneously, so that the second strip lines (43) of the four adjustment structures (4) in the two groups of vertical phase shifting components are respectively in contact with different positions of the first strip lines (21) of the four circuit boards (2) to perform phase shifting.

12. The phase shifter according to claim 11, wherein: The two adjustment structures (4), the two circuit boards (2), and the two support plates (1) of each group of the vertical phase shifting components are symmetrically arranged on both sides of the gear (31) in a vertical direction from the outside to the inside. Each arc-shaped internal gear (33) includes two arc-shaped plates (332) with toothed portions. The two arc-shaped plates (332) are connected at both ends and arranged parallel to each other in a vertical direction on both sides of the rack rod (32). The toothed portions of the two arc-shaped plates (332) are meshed and connected with the gear (31). A connecting portion (331) is arranged on the outer side of the arc-shaped plate (332). The two connecting portions (331) are respectively connected to the two adjustment structures (4) on both sides of the gear (31) in a vertical direction.

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