Adjustable millimeter wave calibration antenna receiving mechanism

Abstract

This utility model relates to an adjustable millimeter-wave calibration antenna receiving mechanism, aiming to solve the technical problem that most current millimeter-wave calibration antenna receiving mechanisms are fixed structures. Fixed structures cannot adjust the receiving area and angle according to the array configuration, resulting in limited calibration accuracy and difficulty in complex and variable application scenarios. The mechanism includes: a connecting plate with a connecting column fixedly connected to the center of one end; and an adjustment mechanism located between the connecting plate and the connecting column, comprising: several equidistant connecting slots on the outer periphery of the connecting plate, each connecting slot having a rotatable support rod inside its cavity, with a receiving antenna mounted at one end of each support rod. This utility model, through the adjustment mechanism and drive components, can achieve spatial distribution density of the receiving antenna, adaptively matching the calibration requirements of different array configurations. It not only concentrates and enhances the signal reception strength in specific directions but also expands the coverage area, significantly improving the applicability and calibration accuracy of the millimeter-wave calibration system in multiple scenarios.

Description

Technical Field

[0001] This utility model relates to the field of antenna receiving technology, specifically to an adjustable millimeter-wave calibration antenna receiving mechanism. Background Technology

[0002] In the fields of millimeter-wave communication and imaging, with the expansion of applications such as 5G / 6G communication, vehicle-to-everything (V2X) communication, and millimeter-wave security inspection equipment, the requirements for the precision of antenna array performance are becoming increasingly stringent. During the manufacturing process of antenna arrays, factors such as material tolerances and assembly errors can affect the actual electrical characteristics (such as signal amplitude and phase consistency), making it difficult to perfectly match the theoretical design. This can lead to problems such as signal transmission distortion, blurred imaging, and degraded communication quality. Therefore, precise calibration of the antenna array has become a crucial step in ensuring system performance.

[0003] Traditional millimeter-wave calibration antenna receivers are mostly fixed structures. Fixed structures cannot adjust the receiving area and angle according to the array configuration, resulting in limited calibration accuracy and making them unsuitable for complex and variable application scenarios. Therefore, new technical solutions are needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide an adjustable millimeter-wave calibration antenna receiving mechanism. This addresses the technical problem that most current millimeter-wave calibration antenna receiving mechanisms are fixed structures, which cannot adjust the receiving area and angle according to the array configuration, resulting in limited calibration accuracy and difficulty in complex and ever-changing application scenarios.

[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows: an adjustable millimeter-wave calibration antenna receiving mechanism is designed, comprising:

[0006] A connecting plate, with a connecting post fixedly connected to the middle of one end;

[0007] An adjustment mechanism, located between the connecting plate and the connecting post, includes:

[0008] Several connecting slots are equidistantly opened on the outer periphery of the connecting plate, and each connecting slot has a support rod rotatably installed in its inner cavity. A receiving antenna is installed at one end of the support rod.

[0009] Several connecting seats are slidably disposed at the end of the support rod away from the receiving antenna, and a top rod, which is L-shaped, is rotatably connected to the inner side of each of the connecting seats.

[0010] A sleeve is slidably fitted on the outside of the connecting column, and one end of the push rod is fixedly connected to the sleeve;

[0011] A drive assembly located between the sleeve and the connecting post is used to drive the sleeve to slide axially along the connecting post in order to achieve synchronous adjustment of the receiving antenna angle.

[0012] Preferably, the driving component includes:

[0013] An adjustment groove is formed on the surface of the connecting column, and a lead screw is rotatably connected to the inner cavity of the adjustment groove via a bearing;

[0014] An adjusting block is slidably connected in the adjusting groove, and the adjusting block is fixedly connected to the inner side of the sleeve. The adjusting block is threaded onto the outer side of the lead screw.

[0015] The first drive motor is fixedly connected to the end of the connecting column away from the connecting plate. The drive end of the first drive motor rotates through the connecting column and is connected to the lead screw drive via a coupling.

[0016] Preferably, the inner sides of several connecting grooves are rotatably connected to a first rotating shaft via bearings, one end of the support rod is fixedly connected to the outer side of the first rotating shaft, a limiting groove is formed at the end of the support rod near the connecting seat, and the limiting groove is T-shaped, a limiting block adapted to the limiting groove is slidably connected in the limiting groove, the connecting seat is fixedly connected to the limiting block, the inner side of the connecting seat is rotatably connected to a second rotating shaft via bearings, and one end of the top rod is fixedly connected to the outer side of the second rotating shaft.

[0017] Preferably, a support frame is provided below the end of the connecting column away from the connecting plate. The support frame is U-shaped, and a connecting shaft is rotatably connected between the two ends of the inner cavity of the support frame through a bearing. The connecting column is fixedly connected to the outside of the connecting shaft. A worm gear is fixedly connected to the outer periphery of the connecting shaft on one side of the connecting column. A second drive motor is fixedly connected to the inner side of the support frame. A worm is fixedly connected to the drive end of the second drive motor, and the worm meshes with the worm gear.

[0018] Preferably, a base is fixedly connected to the bottom of the support frame, and the base is integrally formed of metal material.

[0019] Preferably, the lead angle of the worm is less than or equal to the equivalent friction angle at the meshing point of the worm wheel and the worm, thereby achieving the self-locking function of the transmission system through geometric constraints.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention, through the adjustment mechanism and drive components, can realize the spatial distribution density of the receiving antenna, adaptively match the calibration requirements of different array configurations, not only enhance the signal reception strength in a specific direction, but also expand the coverage range, significantly improving the applicability and calibration accuracy of the millimeter-wave calibration system in multiple scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of one side of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure on the other side of this utility model;

[0024] Figure 3 This is an enlarged view of point A in this utility model;

[0025] Figure 4 This is a sectional front view of the connection between the connecting column and the connecting plate of this utility model;

[0026] Figure 5 This is an enlarged view of section B of this utility model.

[0027] In the diagram: 1. Connecting plate; 11. Connecting groove; 12. Support rod; 13. First rotating shaft; 2. Receiving antenna; 3. Connecting column; 31. Sleeve; 32. Top rod; 33. Adjusting groove; 34. Adjusting block; 35. Lead screw; 36. First drive motor; 37. Limiting groove; 38. Limiting block; 39. Connecting seat; 310. Second rotating shaft; 4. Base; 41. Support frame; 5. Connecting shaft; 51. Worm gear; 52. Second drive motor; 53. Worm. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Example 1: Adjustable millimeter-wave calibration antenna receiving mechanism, see [link / reference] Figures 1 to 5The system includes: a connecting plate 1, with a connecting post 3 fixedly connected to the middle of one end; an adjustment mechanism located between the connecting plate 1 and the connecting post 3, comprising: a plurality of connecting slots 11 equidistantly formed on the outer periphery of the connecting plate 1, each connecting slot 11 having a support rod 12 rotatably mounted inside, one end of each support rod 12 having a receiving antenna 2 mounted thereon, the receiving antenna 2 being connected to a control module via a low-loss RF feed line, and generating phase correction parameters through an algorithm; a plurality of connecting seats 39 slidably disposed at the end of the support rod 12 away from the receiving antenna 2, each connecting seat 39 having a top rod 32 rotatably connected to its inner side, which is L-shaped; and a sleeve 31 slidably sleeved on the outside of the connecting post 3, one end of the top rod 32 being fixed to the sleeve 31. A drive assembly is provided between the sleeve 31 and the connecting post 3 to drive the sleeve 31 to slide axially along the connecting post 3, so as to realize synchronous adjustment of the angle of the receiving antenna 2. The drive assembly includes: an adjustment groove 33, which is opened on the surface of the connecting post 3, and the inner cavity of the adjustment groove 33 is rotatably connected to the lead screw 35 through a bearing; an adjustment block 34, which is slidably connected in the adjustment groove 33 and is fixedly connected to the inner side of the sleeve 31, and the adjustment block 34 is threaded on the outer side of the lead screw 35; and a first drive motor 36, which is fixedly connected to the end of the connecting post 3 away from the connecting plate 1, and the drive end of the first drive motor 36 rotates through the connecting post 3 and is connected to the lead screw 35 through a coupling.

[0030] During operation, the first drive motor 36 drives the lead screw 35 to rotate, and the adjusting block 34 slides along the axis of the connecting column 3 along the nut of the lead screw 35 and the drive sleeve 31. The L-shaped top rod 32 synchronously pushes the connecting seat 39 to move on the support rod 12, realizing the linkage adjustment of the angle of the receiving antenna 2 around the first rotating shaft 13. The support rod 12 can slide and synchronously expand or retract with the sleeve 31. By changing the spatial distribution density of the receiving antenna 2, it can adaptively match the calibration requirements of different array forms (such as uniform linear array, area array or sparse array). It can not only concentrate on enhancing the signal reception strength in a specific direction, but also expand the coverage range, significantly improving the applicability and calibration accuracy of the millimeter wave calibration system in multiple scenarios.

[0031] For details, see Figure 1 , Figure 4 and Figure 5The inner sides of several connecting grooves 11 are rotatably connected to a first rotating shaft 13 via bearings. One end of the support rod 12 is fixedly connected to the outer side of the first rotating shaft 13. A limiting groove 37 is formed at the end of the support rod 12 near the connecting seat 39. The limiting groove 37 is T-shaped. A limiting block 38 adapted to the limiting groove 37 is slidably connected in the limiting groove 37. The connecting seat 39 is fixedly connected to the limiting block 38. The inner side of the connecting seat 39 is rotatably connected to a second rotating shaft 310 via bearings. One end of the top rod 32 is fixedly connected to the outer side of the second rotating shaft 310. The support rod 12 and the first rotating shaft 13 cooperate to achieve horizontal rotation in the connecting groove 11. The connecting seat 39 slides in the limiting groove 37 of the support rod 12 via the T-shaped limiting block 38. With the rotational connection between the second rotating shaft 310 and the top rod 32, a multi-dimensional adjustment capability of "horizontal rotation, axial sliding and vertical pitch" is formed.

[0032] Further, see Figure 3 A support frame 41 is provided below the end of the connecting column 3 away from the connecting plate 1. The support frame 41 is U-shaped. The two ends of the inner cavity of the support frame 41 are rotatably connected to the connecting shaft 5 through bearings. The connecting column 3 is fixedly connected to the outside of the connecting shaft 5. A worm gear 51 is fixedly connected to the outer periphery of the connecting shaft 5 on one side of the connecting column 3. A second drive motor 52 is fixedly connected to the inner side of the support frame 41. A worm 53 is fixedly connected to the drive end of the second drive motor 52, and the worm 53 meshes with the worm gear 51. The second drive motor 52 drives the worm 53 to rotate, which in turn drives the connecting shaft 5 to rotate, thereby causing the connecting column 3 and the entire receiving antenna 2 array to rotate. This increases the ability of the receiving antenna 2 to dynamically adjust the azimuth and elevation angles for millimeter-wave signals in a wider range of directions, further improving the applicability and calibration accuracy of the millimeter-wave calibration system in multiple scenarios.

[0033] It is worth noting that, see Figure 1 The bottom of the support frame 41 is fixedly connected to a base 4, which is integrally formed of metal. The base 4 increases the contact area between the support frame 41 and the support surface, and increases its weight, thereby further improving the stability of the device during use.

[0034] It is worth noting that, see Figure 3 The lead angle of the worm 53 is less than or equal to the equivalent friction angle at the meshing point of the worm wheel 51 and the worm 53. The self-locking function of the transmission system is realized through geometric constraints. When the driving force is lost, the current posture of the receiving mechanism can still be locked to prevent angle changes caused by gravity or external impact, thereby improving the reliability of the transmission mechanism.

[0035] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0036] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An adjustable millimeter wave calibration antenna receiver mechanism, characterized by, include: A connecting plate (1) has a connecting post (3) fixedly connected to the middle of one end; An adjustment mechanism, located between the connecting plate (1) and the connecting post (3), includes: A number of connecting slots (11) are equally spaced on the outer periphery of the connecting plate (1). Each connecting slot (11) has a support rod (12) rotatably installed in its inner cavity. A receiving antenna (2) is installed at one end of the support rod (12). Several connecting seats (39) are slidably disposed at one end of the support rod (12) away from the receiving antenna (2), and a top rod (32) is rotatably connected to the inner side of each of the connecting seats (39), which is L-shaped; A sleeve (31) is slidably fitted on the outside of the connecting column (3), and one end of the top rod (32) is fixedly connected to the sleeve (31); A drive assembly located between the sleeve (31) and the connecting post (3) is used to drive the sleeve (31) to slide along the axial direction of the connecting post (3) to achieve synchronous adjustment of the angle of the receiving antenna (2).

2. The tunable millimeter wave calibration antenna receiving mechanism of claim 1, wherein, The driving component includes: An adjustment groove (33) is formed on the surface of the connecting column (3), and the inner cavity of the adjustment groove (33) is rotatably connected to a lead screw (35) through a bearing. The adjusting block (34) is slidably connected in the adjusting groove (33), and the adjusting block (34) is fixedly connected to the inner side of the sleeve (31). The adjusting block (34) is threaded onto the outer side of the lead screw (35). The first drive motor (36) is fixedly connected to the end of the connecting column (3) away from the connecting plate (1). The drive end of the first drive motor (36) rotates through the connecting column (3) and is connected to the lead screw (35) via a coupling.

3. The tunable millimeter wave calibration antenna receiver of claim 1, wherein, The inner sides of several of the connecting grooves (11) are rotatably connected to a first rotating shaft (13) via bearings. One end of the support rod (12) is fixedly connected to the outer side of the first rotating shaft (13). A limiting groove (37) is opened at the end of the support rod (12) near the connecting seat (39), and the limiting groove (37) is T-shaped. A limiting block (38) that matches the limiting groove (37) is slidably connected in the limiting groove (37). The connecting seat (39) is fixedly connected to the limiting block (38). The inner side of the connecting seat (39) is rotatably connected to a second rotating shaft (310) via bearings. One end of the top rod (32) is fixedly connected to the outer side of the second rotating shaft (310).

4. The tunable millimeter wave calibration antenna receiver of claim 1, wherein, A support frame (41) is provided below the end of the connecting column (3) away from the connecting plate (1). The support frame (41) is U-shaped. The two ends of the inner cavity of the support frame (41) are rotatably connected to the connecting shaft (5) through bearings. The connecting column (3) is fixedly connected to the outside of the connecting shaft (5). A worm gear (51) is fixedly connected to the outer periphery of the connecting shaft (5) on one side of the connecting column (3). A second drive motor (52) is fixedly connected to the inner side of the support frame (41). A worm (53) is fixedly connected to the drive end of the second drive motor (52), and the worm (53) meshes with the worm gear (51).

5. The tunable millimeter wave calibration antenna receiving mechanism of claim 4, wherein, The bottom of the support frame (41) is fixedly connected to a base (4), which is integrally formed of metal.

6. The tunable millimeter wave calibration antenna receiving mechanism of claim 4, wherein, The lead angle of the worm (53) is less than or equal to the equivalent friction angle at the meshing position of the worm gear (51) and the worm (53), and the self-locking function of the transmission system is realized by geometric constraints.

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