Device for testing performance of high-power microwave large radiating antenna

Abstract

The utility model provides a device for high-power microwave large-scale radiating antenna performance test, which comprises a test load assembly, a pitching support assembly and a rotation assembly, the test load assembly is used for installing an antenna to be tested, the pitching support assembly is used for adjusting and measuring the pitching angle of the test load assembly, and the rotation assembly is used for rotating the antenna to be tested. The rotation assembly is used for adjusting and measuring the rotation angle of the pitching supporting assembly. The antenna to be tested is installed through the test load assembly, the pitching angle of the test load assembly is adjusted and measured through the pitching supporting assembly, the rotation angle of the pitching supporting assembly is adjusted and measured through the rotation assembly, and therefore adjustment and measurement of the pitching angle and the rotation angle of the antenna to be tested are achieved. According to the antenna performance test requirements, the pitching angle and the rotation angle of the antenna array plane can be controlled in a servo mode, and the servo control precision is better than 0.1 degree.

Description

Technical Field

[0001] This utility model belongs to the field of experimental equipment technology, and more specifically, it relates to a device for performance testing of high-power microwave large radiating antennas. Background Technology

[0002] As high-power microwave radiating antenna arrays, these antennas are typically large in size and weight. After machining, these large antenna arrays require performance testing and analysis to ensure that the actual product meets radiation performance specifications. Typically, the radiating surface of this type of high-power microwave antenna is a large flat surface or a curved surface, with mounting supports located on both sides of the radiating surface on the same plane. To measure the antenna's radiation performance, a specialized mechanical testing device needs to be designed. This device must be capable of pitching and rotating the antenna array, continuously changing its spatial attitude for performance analysis. The required motion accuracy of the testing device is: pitch accuracy and rotation accuracy better than 0.1°. Currently, there is no universally applicable high-precision testing device, suitable for testing antenna arrays of different shapes and sizes, both domestically and internationally, for this type of large high-power microwave radiating antenna. Utility Model Content

[0003] To solve the above problems, the technical solution adopted by this utility model is: to provide a device for performance testing of high-power microwave large radiating antennas, including a test load assembly, an elevation support assembly, and a rotation assembly. The test load assembly is used to install the antenna under test, the elevation support assembly is used to adjust and measure the elevation angle of the test load assembly, and the rotation assembly is used to adjust and measure the rotation angle of the elevation support assembly.

[0004] Optionally, the test load assembly includes a load bracket with a load mounting plate on it, the antenna under test is connected to the load mounting plate, and pitch axes are provided at both ends of the load bracket.

[0005] Optionally, the pitch support assembly includes a pitch support frame connected to the slewing assembly. The pitch support frame is provided with a first support column and a second support column. The two ends of the pitch shaft are rotatably connected to the first support column and the second support column respectively through bearings. The first support column is provided with a pitch drive mechanism, which is fixedly connected to one end of the pitch shaft. The second support column is provided with a first encoder, which is connected to the other end of the pitch shaft.

[0006] Optionally, the pitch drive mechanism includes a first servo motor and a first reducer, wherein the output end of the first servo motor is connected to the input end of the first reducer, and the output end of the first reducer is fixedly connected to one end of the pitch axis.

[0007] Optionally, the pitch drive mechanism further includes a first hand crank, which is connected to the input end of the first reducer.

[0008] Optionally, the rotary assembly includes a rotary platform, on which a track support base is arranged in a circular array, and sliders are arranged opposite each other on the track support base. A circular track is slidably connected between the two sliders. A track mounting plate is provided in the middle of the pitch support frame. The circular track is fixedly connected to the track mounting plate. A rotary drive mechanism is provided on the rotary platform for driving the pitch support frame to rotate along the circular track.

[0009] Optionally, the rotary drive mechanism includes a second servo motor and a second reducer. The output end of the second servo motor is connected to the input end of the second reducer, and the output end of the second reducer drives the track mounting plate to rotate through a transmission mechanism.

[0010] Optionally, it also includes a second hand crank, which is connected to the input end of the second reducer.

[0011] Optionally, a rotary shaft is provided in the middle of the track mounting plate, and a second encoder is provided on the rotary platform, the second encoder being connected to the rotary shaft.

[0012] Optionally, the bottom of the rotary platform is provided with a support base and casters.

[0013] The beneficial effects of the device for performance testing of high-power microwave large radiating antennas provided by this utility model are as follows: Compared with the prior art, this utility model includes a test load assembly, an elevation support assembly, and a rotation assembly. The test load assembly is used to install the antenna under test; the elevation angle of the test load assembly is adjusted and measured using the elevation support assembly; and the rotation assembly is used to adjust and measure the rotation angle of the elevation support assembly, thereby realizing the adjustment and measurement of the elevation and rotation angles of the antenna under test. According to the antenna performance testing requirements, the elevation and rotation angles of the antenna array can be servo-controlled with a servo control accuracy better than 0.1°. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1A schematic diagram of the overall structure of the device for performance testing of a high-power microwave large radiating antenna provided in an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the test load assembly provided in an embodiment of the present invention;

[0017] Figure 3 Schematic diagram of the pitch support assembly provided in this embodiment of the utility model Figure 1 ;

[0018] Figure 4 Schematic diagram of the pitch support assembly provided in this embodiment of the utility model Figure 2 ;

[0019] Figure 5 This is a schematic diagram of the structure of the rotary assembly provided in an embodiment of the present utility model;

[0020] Figure 6 for Figure 5 Enlarged view of section A.

[0021] The following are the labeling elements in the figure:

[0022] 1. Test load assembly; 11. Load hanger; 12. Load mounting plate; 13. Pitch axis; 2. Pitch support assembly; 21. Pitch support frame; 22. Second support column; 23. Track mounting plate; 24. First servo motor; 25. First reducer; 26. First hand crank; 27. First encoder; 28. Bearing; 29. ​​Rotary shaft; 3. Rotary assembly; 31. Rotary platform; 32. Track support seat; 33. Circular track; 34. Slider; 35. Transmission mechanism; 36. Second reducer; 37. Second servo motor; 38. Second hand crank; 4. Antenna under test. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1-6 The apparatus for performance testing of high-power microwave large radiating antennas provided in the embodiments of this utility model will now be described.

[0028] The apparatus for performance testing of high-power microwave large radiating antennas includes a test load assembly 1, an elevation support assembly 2, and a rotation assembly 3. The test load assembly 1 is used to mount the antenna under test 4, the elevation support assembly 2 is used to adjust and measure the elevation angle of the test load assembly 1, and the rotation assembly 3 is used to adjust and measure the rotation angle of the elevation support assembly 2.

[0029] During testing, the antenna under test (4) is installed using test load assembly 1. The elevation angle of test load assembly 1 is adjusted and measured using elevation support assembly 2, and the rotation angle of elevation support assembly 2 is adjusted and measured using rotation assembly 3. This allows for the adjustment and measurement of the elevation and rotation angles of the antenna under test (4). According to antenna performance testing requirements, the elevation and rotation angles of the antenna array can be controlled.

[0030] In some embodiments of this utility model, see Figure 2 The test load assembly 1 includes a load bracket 11, a load mounting plate 12 is provided on the load bracket 11, the antenna under test 4 is connected to the load mounting plate 12, and pitch axes 13 are provided at both ends of the load bracket 11.

[0031] Large antenna radiating arrays of different sizes and shapes can be installed using the load mounting plate 12 to meet the needs of antenna performance testing. The load bracket 11 can rotate around the elevation axis 13, thereby driving the antenna under test 4 to rotate and adjusting its elevation angle.

[0032] In some embodiments of this utility model, see Figure 3The pitch support assembly 2 includes a pitch support frame 21, which is connected to the slewing assembly 3. A first support column and a second support column 22 are provided on the pitch support frame 21. The two ends of the pitch shaft 13 are rotatably connected to the first support column and the second support column 22 respectively through bearings 28. A pitch drive mechanism is provided on the first support column, which is fixedly connected to one end of the pitch shaft 13. A first encoder 27 is provided on the second support column 22, which is connected to the other end of the pitch shaft 13.

[0033] The pitch drive mechanism can drive the pitch axis 13 to rotate, thereby adjusting the pitch angle of the antenna under test 4. The first encoder 27 can display the change of pitch angle in real time.

[0034] In some embodiments of this utility model, see Figure 2 The pitch drive mechanism includes a first servo motor 24 and a first reducer 25. The output end of the first servo motor 24 is connected to the input end of the first reducer 25, and the output end of the first reducer 25 is fixedly connected to one end of the pitch axis 13.

[0035] The first servo motor 24 can drive the first reducer 25 to rotate, and the first reducer 25 drives the pitch axis 13 to rotate. Through the first servo motor 24 and the first reducer 25, the pitch angle of the antenna under test 4 can be precisely controlled with an accuracy better than 0.1°.

[0036] In some embodiments of this utility model, see Figure 3 The pitch drive mechanism also includes a first hand crank 26, which is connected to the input end of the first reducer 25.

[0037] When there is no power, the first hand crank 26 can be used to drive the first reducer 25 to rotate, thereby driving the pitch axis 13 to rotate and adjusting the pitch angle of the antenna under test 4.

[0038] In some embodiments of this utility model, see Figure 4 The rotary assembly 3 includes a rotary platform 31, on which a ring array of track support seats 32 are arranged. Slider blocks 34 are arranged opposite each other on the track support seats 32. A ring track 33 is slidably connected between the two sliders 34. A track mounting plate 23 is arranged in the middle of the pitch support frame 21. The ring track 33 is fixedly connected to the track mounting plate 23. A rotary drive mechanism for driving the pitch support frame 21 to rotate along the ring track 33 is provided on the rotary platform 31.

[0039] The circular track 33 can support the pitch support frame 21, and then the force it receives is transmitted to the rotary platform 31 through the track support seat 32, which can improve the stability of the pitch support frame 21.

[0040] For details, please refer to Figure 6 The annular track 33 has an I-shaped cross-section, and one side of the slider 34 is located in the groove on the side of the annular track 33. During rotation, the slider 34 remains stationary while the annular track rotates. Optionally, the slider 34 can also adopt a wheel-like structure and be rotatably connected to the track support 32, thereby changing the sliding friction with the annular track 33 into rolling friction and reducing friction.

[0041] In some embodiments of this utility model, the rotary drive mechanism includes a second servo motor 37 and a second reducer 36. The output end of the second servo motor 37 is connected to the input end of the second reducer 36, and the output end of the second reducer 36 drives the track mounting plate 23 to rotate through the transmission mechanism 35.

[0042] The second servo motor 37 drives the second reducer 36 to rotate. The second reducer 36 drives the track mounting plate 23 to rotate through the transmission mechanism 35, thereby adjusting the rotation angle of the antenna under test 4. The rotation angle of the antenna under test 4 can be precisely controlled by the second servo motor 37 and the second reducer 36, with an accuracy better than 0.1°.

[0043] In some embodiments of this utility model, see Figure 5 The transmission mechanism 35 can be a worm gear mechanism, wherein the worm is connected to the output end of the second reducer 36, and the worm gear is coaxially fixedly connected to the track mounting plate 23. In some other embodiments of this utility model, other transmission mechanisms 35 can also be used, as long as they can enable the second reducer 36 to drive the track mounting plate 23 to rotate; this utility model does not impose any limitations.

[0044] In some embodiments of this utility model, see Figure 5 It also includes a second hand crank 38, which is connected to the input terminal of the second reducer 36. When the power is off, the second hand crank 38 can drive the second reducer 36 to rotate, thereby adjusting the rotation angle of the antenna 4 under test.

[0045] In some embodiments of this utility model, see Figure 4 A rotary shaft 29 is located in the middle of the track mounting plate 23, and a second encoder is installed on the rotary platform 31, which is connected to the rotary shaft 29. The change in the rotation angle can be displayed in real time through the second encoder.

[0046] In some embodiments of this utility model, see Figure 1 The bottom of the rotary platform 31 is equipped with a support base and casters. The support base is used to support the rotary platform 31 and prevent the device from moving. When it needs to be moved, it can be moved by the casters.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for performance testing of high-power microwave large radiating antennas, characterized in that: It includes a test load assembly, a pitch support assembly, and a rotation assembly. The test load assembly is used to mount the antenna under test. The pitch support assembly is used to adjust and measure the pitch angle of the test load assembly. The rotation assembly is used to adjust and measure the rotation angle of the pitch support assembly.

2. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 1, characterized in that: The test load assembly includes a load bracket with a load mounting plate on it. The antenna under test is connected to the load mounting plate, and pitch axes are provided at both ends of the load bracket.

3. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 2, characterized in that: The pitch support assembly includes a pitch support frame connected to the slewing assembly. The pitch support frame is provided with a first support column and a second support column. The two ends of the pitch shaft are rotatably connected to the first support column and the second support column respectively through bearings. The first support column is provided with a pitch drive mechanism, which is fixedly connected to one end of the pitch shaft. The second support column is provided with a first encoder, which is connected to the other end of the pitch shaft.

4. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 3, characterized in that: The pitch drive mechanism includes a first servo motor and a first reducer. The output end of the first servo motor is connected to the input end of the first reducer, and the output end of the first reducer is fixedly connected to one end of the pitch axis.

5. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 4, characterized in that: The pitch drive mechanism further includes a first hand crank, which is connected to the input end of the first reducer.

6. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 3, characterized in that: The rotary assembly includes a rotary platform, on which a track support base is arranged in a circular array. Slider blocks are arranged opposite each other on the track support base, and a circular track is slidably connected between the two sliders. A track mounting plate is provided in the middle of the pitch support frame, and the circular track is fixedly connected to the track mounting plate. A rotary drive mechanism is provided on the rotary platform for driving the pitch support frame to rotate along the circular track.

7. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 6, characterized in that: The rotary drive mechanism includes a second servo motor and a second reducer. The output end of the second servo motor is connected to the input end of the second reducer, and the output end of the second reducer drives the track mounting plate to rotate through a transmission mechanism.

8. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 7, characterized in that: It also includes a second hand crank, which is connected to the input end of the second reducer.

9. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 6, characterized in that: A rotary shaft is provided in the middle of the track mounting plate, and a second encoder is provided on the rotary platform. The second encoder is connected to the rotary shaft.

10. The apparatus for performance testing of high-power microwave large radiating antennas as described in claim 6, characterized in that: The bottom of the rotating platform is equipped with a support base and casters.

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