Antenna tester of array antenna

Abstract

The utility model relates to the technical field of antenna detection equipment, and discloses an antenna tester of an array antenna, which comprises a device base, a supporting column arranged on the device base, a supporting table arranged at the top of the supporting column, a transmission cavity arranged in the supporting table, a driving gear rotationally arranged in the transmission cavity, and a transmission shaft arranged in the driving gear, a driving gear is rotated to drive a driven gear ring to rotate, then the driven gear ring drives four driven gears to rotate, and then the four driven gear rings drive four sliding strips arranged on the inner wall of the top of a transmission cavity in a sliding mode to slide synchronously; the four clamping blocks are driven to be close to each other to clamp and fix the antenna, the four clamping blocks can be synchronously close to each other or far away from each other, so that the antenna clamping device can adapt to antennas of different sizes, the antennas can be detected through the detection head after clamping is completed, and through the arrangement of the clamping mechanism, the detection efficiency is improved. The antenna to be detected can be kept stable in the detection process, and then the accuracy of the detection result is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna detection equipment, and specifically relates to an antenna tester for an array antenna. Background Technique

[0002] An antenna is a transducer that converts the guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa. It is a component used to transmit or receive electromagnetic waves in radio equipment. All applications such as radio communication, broadcasting, television, radar, and navigation that utilize electromagnetic waves to transmit information rely on antennas to work.

[0003] Antenna detection is a very important technology. As an important part of application fields such as communication and radar, it is related to the development of the electronics industry. Therefore, the testing and verification of antenna parameters are essential. However, when detecting the antenna of an electronic testing device, it is easy to have the situation of incomplete detection or lack of data in one aspect, resulting in omission by researchers.

[0004] The patent with the publication number CN 219799610 U discloses an antenna tester for an array antenna, including a rotating mechanism, a lifting mechanism, a tripod, and an adjustable antenna. In the utility model, when placing the item to be detected on the platform through the rotating mechanism, the servo motor is started to drive the sprocket transmission through the coupling. The sprocket drives the transmission sprocket at the bottom of the fixed disk to rotate synchronously through the chain, so that the fixed disk drives the rotating disk to rotate. With the assistance of the rollers, the rotating disk rotates, realizing the rotation of the electronic testing device, facilitating omnidirectional testing, and the bracket is fixed at the bottom end to make the mechanism more stable; in the utility model, through the lifting mechanism, when the test object is placed on it, the motor drives the second bevel gear to mesh and rotate with the first bevel gear, and the screw rotates. Through the threaded transmission with the inner side of the moving plate, the moving plate slides on the pillar, thereby adjusting the height of the platform, and the height adjustment of the testing device can be realized. The housing plays a protective role and also prevents dust from entering.

[0005] However, this device does not have a positioning mechanism for the item to be detected, and it is easy for the item to move due to external force factors during the detection process, thereby affecting the detection effect. Summary of the Invention

[0006] Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides an antenna tester for an array antenna to solve the above technical problems.

[0008] To achieve the above object, the present utility model provides the following technical solutions: An antenna tester for an array antenna, comprising a device base, a support column is installed on the device base, a support platform is installed at the top of the support column, a transmission cavity is provided in the support platform, a driving gear is rotatably installed in the transmission cavity, a driven toothed ring is rotatably installed in the transmission cavity, an arc-shaped tooth groove engaged with the driving gear is arranged on the outer side of the driven toothed ring, four driven gears which are circumferentially spaced and engaged with the driven toothed ring are arranged in the transmission cavity, four fixing blocks which are circumferentially and evenly arranged are arranged on the top inner wall of the transmission cavity, sliding bars are slidably arranged on the four fixing blocks, racks engaged with the driven gears are arranged on the sliding bars, clamping blocks are installed at the tops of the sliding bars, an installation frame is installed at the top of the support platform, two symmetrically arranged detection heads are arranged on the installation frame, a servo motor is installed at the bottom of the support platform, and the action output shaft of the servo motor penetrates through the support platform and is installed on the driving gear.

[0009] Preferably, a rotating groove is provided at the top of the support column, and a circular convex block adapted to the rotating groove is convexly provided at the bottom of the support platform.

[0010] Preferably, a driving motor is installed on the bottom inner wall of the rotating groove, and the action output shaft of the driving motor is installed on the circular convex block.

[0011] Preferably, the clamping block is a rotatable cylindrical rubber block.

[0012] Preferably, four rectangular sliding holes which are circumferentially spaced are provided on the support platform, and the rectangular sliding holes are communicated with the transmission cavity.

[0013] Preferably, T-shaped limiting blocks are arranged on the four fixing blocks, and limiting sliding grooves adapted to the T-shaped limiting blocks are provided on the sliding bars.

[0014] Preferably, four support feet distributed in a matrix are installed at the bottom of the device base, and the support feet are made of rubber.

[0015] Compared with the prior art, the present utility model provides an antenna tester for an array antenna, which has the following beneficial effects:

[0016] Through the mutual cooperation of structures such as the driving gear, driven tooth ring, driven gear, and sliding bar provided in the present utility model, when it is necessary to detect the antenna, the driving gear can be rotated to drive the driven tooth ring to rotate. Then, the driven tooth ring drives the four driven gears to rotate. Further, the four driven tooth rings drive the four sliding bars slidably arranged on the inner wall of the top of the transmission cavity to slide synchronously, so as to drive the four clamping blocks to approach each other to clamp and fix the antenna. Since the four clamping blocks can approach or move away from each other synchronously, antennas of different sizes can be adapted. After clamping, the antenna can be detected by the detection head. Through the setting of the clamping mechanism, the antenna to be detected can be kept stable during the detection process, thereby ensuring the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 is a schematic sectional structure diagram of structures such as the driving gear, driven tooth ring, and fixing block of the present utility model;

[0019] Figure 3 is a schematic bottom sectional structure diagram of structures such as the driven tooth ring and driven gear of the present utility model;

[0020] Figure 4 is a schematic top sectional structure diagram of the support platform of the present utility model.

[0021] Among them: 1. Device base; 2. Support column; 3. Support foot; 4. Servo motor; 5. Support platform; 6. Mounting frame; 7. Detection head; 8. Rectangular sliding hole; 9. Clamping block; 10. Driving gear; 11. Transmission cavity; 12. Fixing block; 13. Driven tooth ring; 14. Arc-shaped tooth groove; 15. Driven gear; 16. Limit sliding groove; 17. Sliding bar; 18. Driving motor; 19. Rotating groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Please refer to Figures 1-4 , an antenna tester for an array antenna, comprising a device base 1, a support column 2 is installed on the device base 1, a support platform 5 is installed at the top of the support column 2, a transmission cavity 11 is provided in the support platform 5, a driving gear 10 is rotatably installed in the transmission cavity 11, a driven gear ring 13 is rotatably installed in the transmission cavity 11, an arc-shaped tooth groove 14 engaged with the driving gear 10 is arranged on the outer side of the driven gear ring 13, four driven gears 15 which are arranged at intervals in the circumferential direction and engaged with the driven gear ring 13 are arranged in the transmission cavity 11, four fixing blocks 12 which are evenly arranged in the circumferential direction are arranged on the top inner wall of the transmission cavity 11, sliding strips 17 are slidably arranged on the four fixing blocks 12, racks engaged with the driven gears 15 are arranged on the sliding strips 17, clamping blocks 9 are installed at the tops of the sliding strips 17, an installation frame 6 is installed at the top of the support platform 5, two symmetrically arranged detection heads 7 are arranged on the installation frame 6, a servo motor 4 is installed at the bottom of the support platform 5, and the action output shaft of the servo motor 4 penetrates through the support platform 5 and is installed on the driving gear 10.

[0026] By setting up the mutual cooperation of structures such as the driving gear 10, the driven gear ring 13, the driven gear 15, and the sliding bar 17, when it is necessary to detect the antenna, the driving gear 10 can be rotated to drive the driven gear ring 13 to rotate. Then, the driven gear ring 13 drives the four driven gears 15 to rotate. Furthermore, the four sliding bars 17 slidably arranged on the top inner wall of the transmission cavity 11 can be driven by the four driven gear rings 13 to slide synchronously, so as to achieve the purpose of driving the four clamping blocks 9 to approach each other to clamp and fix the antenna. Since the four clamping blocks 9 can approach or move away from each other synchronously, antennas of different sizes can be adapted. After clamping, the antenna can be detected by the detection head 7. Through the setting of the clamping mechanism, the antenna to be detected can be kept stable during the detection process, thus ensuring the accuracy of the detection result.

[0027] Specifically, in this embodiment, a rotating groove 19 is opened at the top of the support column 2, and a circular convex block adapted to the rotating groove 19 protrudes from the bottom of the support platform 5.

[0028] By providing the rotating groove 19 and the circular convex block, the support platform 5 can rotate a certain angle along the rotating groove 19 through the circular convex block.

[0029] Specifically, in this embodiment, a driving motor 18 is installed on the bottom inner wall of the rotating groove 19, and the action output shaft of the driving motor 18 is installed on the circular convex block.

[0030] Driven by the driving motor 18, the support platform 5 can rotate along the rotating groove 19 through the circular convex block, achieving the purpose of facilitating the rotation of the support platform 5.

[0031] Specifically, in this embodiment, the clamping block 9 is a rotatable cylindrical rubber block, which can avoid damaging the antenna during the clamping process.

[0032] Specifically, in this embodiment, four rectangular sliding holes 8 are opened on the support platform 5 at intervals in the circumferential direction. The rectangular sliding holes 8 communicate with the transmission cavity 11, which can limit the moving direction and range of the clamping block 9.

[0033] Specifically, in this embodiment, T-shaped limit blocks are arranged on all four fixing blocks 12, and limit sliding grooves 16 adapted to the T-shaped limit blocks are opened on the sliding bar 17.

[0034] Through the setting of the T-shaped limit block and the limit sliding groove 16, the moving direction of the sliding bar 17 can be guided and the sliding bar 17 can be limited to a certain extent.

[0035] Specifically, in this embodiment, four support feet 3 distributed in a matrix are installed at the bottom of the device base 1, and the support feet 3 are made of rubber.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An antenna tester for an array antenna, comprising a device base, characterized in that: A support column is installed on the base of the device, and a support platform is installed on the top of the support column. A transmission cavity is opened in the support platform, and a driving gear is rotatably installed in the transmission cavity, and a driven gear ring is rotatably installed in the transmission cavity. An arc-shaped tooth groove meshing with the driving gear is arranged on the outer side of the driven gear ring, and four driven gears arranged at intervals in the circumferential direction and meshing with the driven gear ring are arranged in the transmission cavity, and four fixed blocks evenly arranged in the circumferential direction are arranged on the top inner wall of the transmission cavity, and sliding bars are slidably arranged on the four fixed blocks, and a rack meshing with the driven gear is arranged on the sliding bar, and a clamping block is installed on the top of the sliding bar, and a mounting frame is installed on the top of the support platform, and two mutually symmetrical detection heads are arranged on the mounting frame, and a servo motor is installed at the bottom of the support platform, and the action output shaft of the servo motor passes through the support platform and is installed on the driving gear.

2. The antenna tester for an array antenna according to claim 1, characterized in that: A rotation groove is provided on the top of the support column, and a circular convex block matched with the rotation groove is convexly provided on the bottom of the support platform.

3. The antenna tester for an array antenna according to claim 2, characterized in that: A driving motor is installed on the inner wall of the bottom of the rotating groove, and an action output shaft of the driving motor is installed on the circular convex block.

4. The antenna tester for an array antenna according to claim 1, characterized in that: The clamping block is a rotatable cylindrical rubber block.

5. The antenna tester for an array antenna according to claim 1, characterized in that: The support platform is provided with four rectangular sliding holes which are arranged at intervals along the circumferential direction, and the rectangular sliding holes are communicated with the transmission cavity.

6. The antenna tester for an array antenna according to claim 1, characterized in that: T-shaped limit blocks are arranged on the four fixed blocks, and the sliding bar is provided with limit sliding grooves matched with the T-shaped limit blocks.

7. The antenna tester for an array antenna according to claim 1, characterized in that: Four support feet distributed in a matrix are installed at the bottom of the device base, and the support feet are made of rubber material.

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