A beamforming antenna measurement device

Abstract

The present application discloses a beamforming antenna measuring device, comprising an azimuth general assembly and a pitch general assembly, wherein the pitch general assembly is mounted on the azimuth general assembly; an azimuth driving assembly is arranged on the azimuth general assembly, and the azimuth driving assembly is used to drive the pitch general assembly to perform azimuth rotational movement within a horizontal range; a pitch bearing seat is arranged on the pitch general assembly, a pitch driving shaft is arranged on the pitch bearing seat, the pitch driving shaft drives and connects the pitch assembly frame, and a terminal mounting support component with a hollow structure is arranged on the pitch assembly frame; the pitch driving shaft is used to drive the pitch assembly frame to perform pitch rotational movement within a vertical range; the terminal mounting support component is used to mount a tested antenna therein; the device can reduce or eliminate the influence of shielding or reflection, improve the pointing accuracy and main beam amplitude of the beamforming antenna itself, avoid the influence of the metal structure on the antenna, and realize the pitch rotational movement within a range of 360 degrees.

Description

Technical Field

[0001] The present application relates to the field of antenna measurement technology, and in particular to a beamforming antenna measurement device. Background Art

[0002] With the continuous improvement and deepening of beamforming antenna technology, various research institutions have studied the design and processing of this type of antenna. In order to verify the reliability of design indicators, the research on the measurement of beamforming antennas has also been developed simultaneously.

[0003] Massive MIMO (multiple-input, multiple-output) array antennas are a type of beamforming antenna. At present, beamforming antennas are widely used in 5G communications. Each array element or a group of several array elements of a massive MIMO array antenna is assigned an independent RF channel. The antenna formed in this way has the ability to beamform in both the horizontal and vertical planes, and can achieve a multi-beam three-dimensional radiation pattern. The radiation waveform of such a pattern becomes narrower, with stronger directionality and targeting, thereby improving the reliability of wireless transmission. At the same time, since beamforming increases the electromagnetic wave power density in the receiving area, it can effectively reduce the intensity of the transmitted signal on each array element, and can reduce the antenna's requirements for the power amplifier module. The beamforming function of the MIMO antenna array enhances the coverage capability of the communication system. By controlling the beam directivity of the MIMO antenna array, the gain in the direction of the useful signal wave is enhanced, so that the signal is concentrated in a limited space. The beam is accurately pointed to a specific direction, and the receiver receives all signals as much as possible. At the same time, side lobes or nulls are formed in the direction of the interference signal, so that the main lobe is accurately aligned with the direction of the desired signal, thereby weakening the interference of clutter signals in the environment.

[0004] However, when measuring beamforming antennas in the prior art, the back-end test platform is often a mechanical arm or a metal flat table structure, and the metal shielding or reflector works simultaneously with the array element, which affects the pointing accuracy and main beam amplitude of the beamforming antenna itself. Summary of the invention

[0005] The present application proposes a beamforming antenna measurement device, which aims to solve the problem in the prior art that the metal plane table of the back-end test platform of the beamforming antenna affects the pointing accuracy and main beam amplitude of the beamforming antenna itself due to metal obstruction or the simultaneous operation of the reflector and array element; so as to avoid the influence of the measurement device itself on the beamforming antenna measurement.

[0006] The present application provides a beamforming antenna measurement device, comprising an azimuth general assembly and an elevation general assembly, wherein the elevation general assembly is mounted on the azimuth general assembly;

[0007] An azimuth driving assembly is arranged on the azimuth general assembly, and the azimuth driving assembly is used to drive the elevation general assembly to perform azimuth rotational movement within a horizontal range;

[0008] The pitch general assembly is provided with a pitch bearing seat, the pitch bearing seat is provided with a pitch drive shaft, the pitch drive shaft is drivingly connected to the pitch assembly frame, and the pitch assembly frame is provided with a hollow structure end mounting support component;

[0009] The pitch drive shaft is used to drive the pitch assembly frame to perform pitch rotational movement within a vertical range;

[0010] The terminal mounting support assembly is used for mounting the tested antenna inside the terminal mounting support assembly.

[0011] The beamforming antenna measurement device of the present application can reduce or eliminate the influence of shielding or reflection by setting the end mounting support assembly for mounting the tested antenna as a hollow structure, thereby improving the pointing accuracy and main beam amplitude of the beamforming antenna itself. The azimuth drive assembly can drive the pitch assembly to achieve 360° azimuth rotation in the horizontal direction. The pitch assembly drives the pitch assembly frame to drive the end mounting support assembly to perform pitch rotation in the vertical direction through the pitch drive shaft.

[0012] In some embodiments, the terminal mounting support assembly is made of polyoxymethylene. Non-metallic polyoxymethylene material can further reduce or eliminate the influence of metal shielding or reflection, and further improve the pointing accuracy and main beam amplitude of the beamforming antenna itself.

[0013] In some embodiments, the pitch assembly frame is a hollow frame structure. The effect of this solution is to further reduce or eliminate the influence of metal shielding or reflection, and further improve the pointing accuracy and main beam amplitude of the beamforming antenna itself.

[0014] In some embodiments, the pitch general assembly includes a pitch pivot bracket, the pitch pivot bracket is mounted on the azimuth general assembly, and the pitch bearing seat is mounted on the pitch pivot bracket. The azimuth drive assembly drives the pitch pivot bracket and the pitch bearing seat to drive the pitch assembly frame and the end mounting support assembly for mounting the tested antenna to perform azimuth rotation movement within the horizontal range; at the same time, the structure in which the pitch bearing seat is installed through the pitch pivot bracket can facilitate the pitch drive shaft on the pitch bearing seat to drive the pitch assembly frame and the end mounting support assembly for mounting the tested antenna to perform pitch rotation movement independently and within a larger angle range within the vertical range.

[0015] In some embodiments, the pitch bearing seat includes a first pitch bearing seat and a second pitch bearing seat, the pitch drive shaft is installed on the first pitch bearing seat and is drivingly connected to one end of the pitch assembly frame, and the second pitch bearing seat is installed with a pitch feedback shaft, and the pitch feedback shaft is connected to the other end of the pitch assembly frame. The pitch drive shaft and the pitch feedback shaft are respectively arranged on both sides of the pitch bearing seat, so that the end mounting support assembly is mounted on the pitch rotation support bracket for transmitting azimuth movement through the pitch assembly frame, so that the end mounting support assembly can drive the tested antenna to independently pitch through the pitch assembly frame, thereby realizing a 360° pitch rotation movement in the vertical direction.

[0016] In some embodiments, the terminal mounting support assembly is installed at the center position of the azimuth axis of the azimuth assembly. At this time, when the antenna to be tested is installed inside the pitch assembly frame, the antenna to be tested is located at the center position of the azimuth axis, ensuring that the antenna to be tested can rotate within a range of 360° in the pitch direction. Specifically, the middle position of the terminal mounting support assembly is located at the center position of the azimuth axis of the azimuth assembly. It can also be specifically that the middle position of the terminal mounting support assembly is located at the middle position of the pitch assembly frame, that is, the terminal mounting support assembly is installed in the middle of the pitch assembly frame.

[0017] In some embodiments, the first pitch bearing seat and the second pitch bearing seat are symmetrically distributed, and the pitch drive shaft and the pitch feedback shaft are symmetrically mounted on the first pitch bearing seat and the second pitch bearing seat, respectively. The function of this solution is to achieve a balanced and stable pitch rotation of the pitch assembly frame and the antenna under test under the drive of the pitch drive shaft and the symmetrical support of the pitch feedback shaft by the end mounting support assembly.

[0018] In some embodiments, the azimuth assembly further includes a base support component, and the azimuth drive assembly is mounted on the base support component.

[0019] In some embodiments, the azimuth assembly includes an azimuth power module, and the azimuth power module is drivingly connected to the pitch and swivel bracket.

[0020] In some embodiments, the pitch rotation support bracket includes a cross beam section, a vertical section and a pitch support plate, the cross beam section constitutes a bottom frame, the number of the vertical sections is at least two and evenly and symmetrically distributed; the bottom of the vertical section is connected to the cross beam section, the pitch support plate is connected to the top of the vertical section, and the pitch bearing seat is installed on the pitch support plate; a first oblique support section is connected between the connected vertical section and the pitch support plate, and a second oblique support section is connected between the connected vertical section and the cross beam section. The azimuth power module can be connected to the bottom frame formed by the cross beam section to realize its azimuth rotation drive of the pitch rotation support bracket. The first oblique support section improves the force bearing capacity of the connection structure between the pitch support plate and the vertical section, and the second oblique support section improves the force bearing capacity of the connection structure between the vertical section and the cross beam section, thereby improving the firmness and stability of the pitch rotation support bracket.

[0021] The beamforming antenna measurement device of the present application can at least achieve the following beneficial effects:

[0022] 1. In the beamforming antenna measuring device of the present application, the end mounting support assembly for mounting the antenna under test is a hollow structure, which can reduce or eliminate the influence of shielding or reflection, and improve the pointing accuracy and main beam amplitude of the beamforming antenna itself.

[0023] 2. In the beamforming antenna measurement device of the present application, the end mounting support assembly used to mount the antenna under test can be made of polyformaldehyde to avoid the influence of the metal structure on the antenna.

[0024] 3. The beamforming antenna measuring device of the present application can achieve a 360° pitch rotation movement in the vertical direction by mounting the end-mounted support assembly on a pitch rotation support bracket that transmits azimuth movement through a pitch assembly frame, so that the end-mounted support assembly can drive the tested antenna to perform independent pitch movement through the pitch assembly frame.

[0025] 4. The beamforming antenna measurement device of the present application can ensure that the tested antenna installed in the terminal mounting support assembly can achieve 360° rotational movement in the pitch direction by installing the terminal mounting support assembly at the center position of the azimuth axis of the azimuth general assembly.

[0026] 5. The beamforming antenna measuring device of the present application can be configured with two symmetrical pitch bearing seats on both sides, and the two ends of the pitch assembly frame are respectively connected to the two pitch bearing seats through the pitch drive shaft and the pitch feedback shaft, so that the end-mounted support assembly drives the pitch assembly frame and the antenna under test to achieve a balanced and stable pitch rotation within a range of 360° under the drive of the pitch drive shaft and the symmetrical support of the pitch feedback shaft.

[0027] 6. The beamforming antenna measuring device of the present application can achieve the advantages of light weight and large bearing capacity by adopting support structures such as pitch assembly frames and pitch rotation support brackets made of aluminum alloy materials such as aluminum alloy tubes; and can enhance the load-bearing performance and firmness and stability by setting diagonal support sections on support structures such as pitch rotation support brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 A schematic diagram of the structure of the beamforming antenna measurement device of the present application;

[0030] Figure 2 A front view of the beamforming antenna measurement device of the present application;

[0031] Figure 3 A side view of the beamforming antenna measurement device of the present application;

[0032] Figure 4 AA cross-sectional view of the beamforming antenna measurement device of the present application;

[0033] Figure 5 This is a BB cross-sectional view of the beamforming antenna measurement device of the present application.

[0034] In the figure, 100 is the azimuth assembly, 101 is the azimuth drive assembly, 200 is the pitch assembly, 201 is the pitch bearing seat, 202 is the end mounting support assembly, 203 is the pitch rotation support bracket, 210 is the pitch drive shaft, 220 is the pitch feedback shaft, 1 is the first beam section, 2 is the second beam section, 3 is the third beam section, 4 is the fourth beam section, 5 is the vertical section, 6 is the first diagonal support section, 7 is the second diagonal support section, 8 is the pitch support plate, and 9 is the bottom Support plate, 10 is a reinforcing rib, 11 is a first pitch bearing seat, 12 is a second pitch bearing seat, 13 is an azimuth power module, 14 is a base support assembly, 15 is a pitch assembly frame, 16 is a pitch motor stator assembly, 17 is an outer end cover of the pitch bearing, 18 is an end cover of the bearing seat, 19 is a pitch reading head bracket, 20 is a first screw, 21 is a second screw, 22 is a reading head, 23 is an adjustment foot, 24 is a level, 25 is a caster, and 26 is a circular grating. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0036] The present application aims at the problem that the mechanical arm or metal platform surface in the traditional antenna measurement device has an impact on the beamforming tested antenna itself. The placement position of the tested antenna on the traditional mechanical arm and metal platform surface often deviates from the center of the azimuth axis to a certain extent, which affects the beamforming accuracy of the tested antenna itself, affecting the measurement of key indicators such as the electrical downtilt angle accuracy, main direction inclination, front-to-back ratio of the tested antenna. The measurement platform of the traditional mechanical arm and metal platform surface has great limitations on the pitch angle. At present, the pitch angle of the mainstream platform generally does not exceed ±60°, which greatly affects the measurement capability and range of the measurement platform. The present application aims at the problem that the beamforming tested antenna measurement device is innovatively improved to overcome the impact of the above-mentioned defects and achieve the above-mentioned beneficial effects.

[0037] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0038] Example

[0039] See also Figure 1 , a beamforming antenna measurement device, comprising an azimuth general assembly 100 and an elevation general assembly 200, wherein the elevation general assembly 200 is mounted on the azimuth general assembly 100;

[0040] The azimuth driving assembly 101 is provided on the azimuth general assembly 100, and the azimuth driving assembly 101 is used to drive the pitch general assembly 200 to perform azimuth rotation movement within a horizontal range;

[0041] A pitch bearing seat 201 is provided on the pitch general assembly 200, a pitch driving shaft 210 is provided on the pitch bearing seat 201, the pitch driving shaft 210 is driven and connected to the pitch assembly frame 15, and a hollow end mounting support component 202 is provided on the pitch assembly frame 15;

[0042] The pitch drive shaft 210 is used to drive the pitch assembly frame 15 to perform pitch rotational movement within a vertical range;

[0043] The terminal mounting support assembly 202 is used to mount the antenna to be tested therein.

[0044] The beamforming antenna measuring device of this embodiment has a hollow structure in which the end mounting support assembly 202 for mounting the antenna under test is used. This can avoid the influence of the mechanical arm or metal platform surface in the traditional antenna measuring device on the beamforming antenna itself as much as possible, reduce or eliminate the influence of shielding or reflection, and improve the pointing accuracy and main beam amplitude of the beamforming antenna itself, thereby accurately obtaining the radiation index of the beamforming antenna.

[0045] In some embodiments, the end mounting support assembly 202 is made of polyoxymethylene. The non-metallic polyoxymethylene material can further reduce or eliminate the influence of metal shielding or reflection, and further improve the pointing accuracy and main beam amplitude of the beamforming antenna itself.

[0046] In some embodiments, the pitch assembly frame 15 is a hollow frame structure. This solution is used to further reduce or eliminate the influence of metal shielding or reflection, and further improve the pointing accuracy and main beam amplitude of the beamforming antenna itself.

[0047] In some embodiments, the pitch general assembly 200 includes a pitch swivel bracket 203, the pitch swivel bracket 203 is mounted on the azimuth general assembly 100, and the pitch bearing seat 201 is mounted on the pitch swivel bracket 203. The azimuth drive assembly 101 drives the pitch swivel bracket 203 and the pitch bearing seat 201 to drive the pitch assembly frame 15 and the end mounting support assembly 202 for mounting the tested antenna to perform azimuth rotation movement within the horizontal range; at the same time, the structure in which the pitch bearing seat 201 is mounted through the pitch swivel bracket 203 can facilitate the pitch drive shaft 210 on the pitch bearing seat 201 to drive the pitch assembly frame 15 and the end mounting support assembly 202 for mounting the tested antenna to perform pitch rotation movement independently and within a larger angle range within the vertical range.

[0048] See also Figure 1 and Figure 2 In some embodiments, the pitch bearing seat 201 includes a first pitch bearing seat 11 and a second pitch bearing seat 12, a pitch drive shaft 210 is mounted on the first pitch bearing seat 11 and is driven to connect one end of the pitch assembly frame 15, and a pitch feedback shaft 220 is mounted on the second pitch bearing seat 12, and the pitch feedback shaft 220 is connected to the other end of the pitch assembly frame 15. The pitch drive shaft 210 and the pitch feedback shaft 220 are respectively arranged on both sides of the pitch bearing seat 201, so that the end mounting support assembly 202 is mounted on the pitch rotation support bracket 203 for transmitting azimuth movement through the pitch assembly frame 15, so that the end mounting support assembly 202 can drive the tested antenna to independently pitch through the pitch assembly frame 15, thereby realizing a 360° pitch rotation movement in the vertical direction.

[0049] In some embodiments, the terminal mounting support assembly 202 is mounted at the center of the azimuth axis of the azimuth assembly 100. At this time, when the antenna to be tested is mounted inside the pitch assembly frame 15, the antenna to be tested is located at the center of the azimuth axis, ensuring that the antenna to be tested can rotate within a range of 360° in the pitch direction. Specifically, the middle position of the terminal mounting support assembly 202 is located at the center of the azimuth axis of the azimuth assembly 100. It can also be specifically that the middle position of the terminal mounting support assembly 202 is located at the middle position of the pitch assembly frame 15, that is, the terminal mounting support assembly 202 is installed in the middle of the pitch assembly frame 15.

[0050] It can be seen that the beamforming antenna measurement device of this embodiment has a two-dimensional turntable structure with rotating axes in two directions, namely, the azimuth axis and the elevation axis, and both the azimuth axis and the elevation axis can realize continuous rotation within a range of 360°.

[0051] The beamforming antenna measurement device of this embodiment can measure the elevation angle without being restricted by the platform and can avoid the influence of the measurement platform on the antenna's own characteristics. It is suitable for measuring beamforming antennas, especially for measuring beamforming antennas with large elevation and azimuth angle changes.

[0052] See also Figure 1 and Figure 2 In some embodiments, the first pitch bearing seat 11 and the second pitch bearing seat 12 are symmetrically distributed, and the pitch drive shaft 210 and the pitch feedback shaft 220 are symmetrically mounted on the first pitch bearing seat 11 and the second pitch bearing seat 12, respectively. The function of this solution is to achieve balanced and stable pitch rotation of the pitch assembly frame 15 and the antenna under test under the driving of the pitch drive shaft 210 and the symmetrical support of the pitch feedback shaft 220 by the end mounting support assembly 202.

[0053] In some embodiments, the azimuth assembly 100 further includes a base support component 14 , and the azimuth drive assembly 101 is mounted on the base support component 14 .

[0054] In some embodiments, the azimuth assembly 100 includes an azimuth power module 13 , and the azimuth power module 13 drives and connects the pitch and roll support bracket 203 .

[0055] In some embodiments, the pitch swivel bracket 203 includes a cross beam section, a vertical section 5 and a pitch support plate 8, wherein the cross beam section constitutes a bottom frame, and the number of vertical sections 5 is at least two and evenly and symmetrically distributed; the bottom of the vertical section 5 is connected to the cross beam section, the pitch support plate 8 is connected to the top of the vertical section 5, and the pitch bearing seat 201 is installed on the pitch support plate 8, for example, the pitch bearing seat 201 can be installed on the pitch support plate 8 by a second screw 21. A first oblique support section 6 is connected between the connected vertical section 5 and the pitch support plate 8, and a second oblique support section 7 is connected between the connected vertical section 5 and the cross beam section. The azimuth power module 13 can be connected to the bottom frame formed by the cross beam section to realize the azimuth rotation drive of the pitch swivel bracket 203. The first oblique support section 6 improves the force bearing capacity of the connection structure between the pitch support plate 8 and the vertical section 5, and the second oblique support section 7 improves the force bearing capacity of the connection structure between the vertical section 5 and the bottom frame formed by the cross beam section, thereby improving the firmness and stability of the pitch swivel bracket 203.

[0056] See also Figure 3 and Figure 5 In some embodiments, for example, a mounting interface is reserved on the support frame structure of the base support assembly 14. The mounting interface can be used to install, for example, casters 25, adjustment feet 23, level gauge 24, etc. With the help of fixing devices such as latches and screws, the installation operation is simple and fast, which improves efficiency.

[0057] In some embodiments, the pitch assembly frame 15, the pitch rotation support bracket 203 and other support structures are made of aluminum alloy materials such as aluminum alloy tubes, so as to achieve the advantages of light weight and high bearing capacity.

[0058] In some embodiments, the surfaces of the pitch bearing seat 201, the pitch drive shaft 210, the pitch feedback shaft 220, the pitch pivot bracket 203, the azimuth drive assembly 101, and the base support assembly 14 are all coated with a wave-absorbing material layer.

[0059] In some embodiments, the antenna under test is fixedly mounted in the end mounting support assembly 202 of the hollow structure by means of a polyoxymethylene latch.

[0060] The beamforming antenna measuring device of the above embodiment, its pitch feedback axis 220 can be connected to the industrial computer for data communication, the industrial computer can be connected to the azimuth drive module 13 and the pitch drive axis 210 for signal control, and the industrial computer can be connected to the computer installed with data acquisition, storage, processing and command signal sending programs. Combined with the theoretical and experimental results, one end of the vector network analyzer is connected to the transmitting standard antenna, and the other end is connected to the tested antenna on the terminal mounting support assembly 202. The azimuth and pitch angle rotation rules are set by the program, so as to collect the radiation characteristics of the tested antenna under any azimuth and pitch angle. At the same time, the support structure is wrapped with an absorbing material layer, and the polyoxymethylene material of the terminal mounting support assembly 202 can avoid the influence of the mechanical metal structure of the pitch or azimuth axis itself on the antenna performance, ensure that the radiation characteristics of the tested antenna are not affected by the measuring device, ensure the accuracy of the data received by the beamforming antenna when working at a large azimuth and pitch angle, and ensure that the tested antenna can achieve 360° azimuth and pitch rotation movement in the horizontal and vertical directions respectively.

[0061] In some embodiments, the number of the vertical segments 5 may be four and evenly distributed in a rectangular shape. Then the number of the first diagonal support segments 6 is four, and the number of the second diagonal support segments 7 is four. The vertical segments 5, the first diagonal support segments 6, and the second diagonal support segments 7 may all be square tubes.

[0062] See also Figure 5 In some embodiments, the cross beam section may include two first cross beam sections 1, two second cross beam sections 2, two third cross beam sections 3 and two fourth cross beam sections 4. The third cross beam section 3 may be a circular arc beam. The first cross beam section 1, the second cross beam section 2, the third cross beam section 3 and the fourth cross beam section 4 may all be square tubes with square cross sections. The first cross beam section 1, the second cross beam section 2 and the fourth cross beam section 4 may be straight beams. The two third cross beam sections 3 and the fourth cross beam section 4 may be connected in sequence at intervals to form a rectangular frame structure, wherein the two opposite sides of the rectangular frame structure are straight sides, and the other two opposite sides are circular arc sides protruding outward. The two first cross beam sections 1 and the two second cross beam sections 2 may be evenly spaced and distributed, one end of which is connected to the four corner positions of the rectangular frame structure, and the other end is connected to the lower ends of the four vertical sections 5 respectively.

[0063] See also Figure 2 In some embodiments, the number of the pitch support plates 8 may be two and symmetrically distributed. The first pitch bearing seat 11 and the second pitch bearing seat 12 are respectively mounted on the two pitch support plates 8. The pitch support plate 8 may be a transverse rectangular plate.

[0064] See also Figure 5 In some embodiments, the bottom of the rectangular frame structure may be connected to a bottom support plate 9. A reinforcing rib 10 may be connected between the fourth cross beam segment 4 and the bottom support plate 9.

[0065] See also Figure 4 In some embodiments, the pitch motor stator assembly 16 is mounted on the pitch bearing seat 201. The bearing seat end cover 18 is mounted on the pitch bearing seat 201. The pitch assembly frame 15 is provided with a pitch axis, which is connected to the pitch bearing seat 201 through a pitch bearing, and the pitch bearing is provided with a pitch bearing outer end cover 17 mounted on the pitch bearing seat 201.

[0066] In some embodiments, the pitch bearing seat 201 is mounted with a pitch reading head bracket 19, and the reading head 22 is mounted on the pitch reading head bracket 19. The circular grating 26 is mounted on the pitch bearing seat 201.

[0067] See also Figure 3 In some embodiments, casters 25 and adjustment feet 23 are installed at the bottom of the base support assembly 14. The adjustment feet 23 can be a retractable structure in which an inner tube is sleeved inside an outer tube, and the outer tube and the inner tube can be fixed by bolts.

[0068] See also Figure 5 In some embodiments, a level meter 24 may be installed on the pitch swivel bracket 203. The level meter 24 may be installed on the pitch swivel bracket 203 by means of a first screw 20.

[0069] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A beamforming antenna measurement device, comprising an azimuth assembly and an elevation assembly, characterized in that: The pitch general assembly is mounted on the azimuth general assembly; An azimuth driving assembly is arranged on the azimuth general assembly, and the azimuth driving assembly is used to drive the elevation general assembly to perform azimuth rotational movement within a horizontal range; The pitch general assembly is provided with a pitch bearing seat, the pitch bearing seat is provided with a pitch drive shaft, the pitch drive shaft is drivingly connected to the pitch assembly frame, and the pitch assembly frame is provided with a hollow structure end mounting support component; The pitch drive shaft is used to drive the pitch assembly frame to perform pitch rotational movement within a vertical range; The terminal mounting support assembly is used to mount the antenna to be tested therein; The pitch general assembly includes a pitch pivot support bracket, the pitch pivot support bracket is installed on the azimuth general assembly, and the pitch bearing seat is installed on the pitch pivot support bracket; the pitch pivot support bracket includes a cross beam section, a vertical section and a pitch support plate, and the pitch support plate is connected to the top of the vertical section; the number of the vertical sections is four, and they are evenly distributed in a rectangular shape; the cross beam section includes two first cross beam sections, two second cross beam sections, two third cross beam sections and two fourth cross beam sections, and the two third cross beam sections and the fourth cross beam sections are connected in sequence at intervals to form a rectangular frame structure; the two first cross beam sections and the two second cross beam sections are connected in sequence to form a rectangular frame structure; The beam sections are evenly spaced, one end of which is connected to the four corner positions of the rectangular frame structure, and the other end is respectively connected to the lower ends of the four vertical sections; the number of the pitch support plates is two, and they are symmetrically distributed; the pitch bearing seat includes a first pitch bearing seat and a second pitch bearing seat, the pitch drive shaft is installed on the first pitch bearing seat, and the pitch feedback shaft is installed on the second pitch bearing seat; the first pitch bearing seat and the second pitch bearing seat are respectively installed on the two pitch support plates; the azimuth axis and the pitch axis of the beamforming antenna measurement device can both achieve continuous rotation within a range of 360°; The middle position of the terminal mounting support assembly is located at the center position of the azimuth axis of the azimuth general assembly. When the antenna under test is installed inside the elevation assembly frame, the antenna under test is located at the center position of the azimuth axis, and is used for the antenna under test to rotate within a range of 360° in the elevation direction.

2. The beamforming antenna measurement device according to claim 1, characterized in that: The end mounting support component is made of polyoxymethylene.

3. The beamforming antenna measurement device according to claim 1, characterized in that: The pitch assembly frame is a hollow frame structure.

4. The beamforming antenna measurement device according to claim 1, characterized in that: The third crossbeam section is an arc-shaped beam, and the first crossbeam section, the second crossbeam section and the fourth crossbeam section are straight beams; the two opposite sides of the rectangular frame structure are straight sides, and the other two opposite sides are arc-shaped sides protruding outward.

5. The beamforming antenna measurement device according to claim 3, characterized in that: The pitch driving shaft is drivingly connected to one end of the pitch assembly frame, and the pitch feedback shaft is connected to the other end of the pitch assembly frame.

6. The beamforming antenna measurement device according to claim 5, characterized in that: The first pitch bearing seat and the second pitch bearing seat are symmetrically distributed, and the pitch drive axis and the pitch feedback axis are symmetrically installed on the first pitch bearing seat and the second pitch bearing seat respectively.

7. The beamforming antenna measurement device according to claim 1, characterized in that: The azimuth assembly also includes a base support component, and the azimuth drive assembly is mounted on the base support component.

8. The beamforming antenna measurement device according to claim 7, characterized in that: The surfaces of the pitch bearing seat, the pitch drive shaft, the pitch feedback shaft, the pitch pivot bracket, the azimuth drive assembly, and the base support component are all coated with a wave-absorbing material layer.

9. The beamforming antenna measurement device according to claim 1, characterized in that: The azimuth general assembly includes an azimuth power module, and the azimuth power module is drivingly connected to the pitch and swivel support bracket.

10. The beamforming antenna measurement device according to claim 4, characterized in that: A first oblique bracing section is connected between the connected vertical section and the pitch support plate, and a second oblique bracing section is connected between the connected vertical section and the cross beam section.

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