Anechoic chamber voltage standing wave ratio test system

Abstract

The utility model discloses an anechoic chamber voltage standing wave ratio test system. The anechoic chamber voltage standing wave ratio test system comprises a linear module used for driving a support to move in the horizontal direction; the reversing assembly is configured on the support, an antenna is configured on the reversing assembly, and the reversing assembly can drive the antenna to rotate circumferentially with the central axis of the support as the center or drive the antenna to reverse in the horizontal direction or the vertical direction; wherein the reversing assembly at least comprises a driving structure and a base driven by the driving structure, and the antenna is installed on the base; according to the utility model, the problems of low test efficiency and low test precision caused by manual movement of the signal transmitting antenna in a traditional voltage standing wave ratio test experiment can be solved.

Description

Technical Field

[0001] This utility model relates to the field of antenna support, specifically to a voltage standing wave ratio (VSWR) testing system for an anechoic chamber. Background Technology

[0002] Anechoic chambers play a crucial role in the testing of modern electronic equipment. To ensure testing accuracy, the measurement of the site's voltage standing wave ratio (VSWR) is particularly important. VSWR is one of the key indicators for evaluating the performance of an anechoic chamber; it reflects the reflection of electromagnetic waves inside the chamber and affects the accuracy of test results. Measuring VSWR helps identify electromagnetic wave reflection problems within the anechoic chamber, thereby optimizing the testing environment. Traditional VSWR testing experiments typically involve manually moving the signal transmitting antenna, resulting in low testing efficiency and accuracy. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a voltage standing wave ratio (VSWR) testing system for an anechoic chamber.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: a linear module for driving the support to move horizontally; a commutation assembly disposed on the support, an antenna disposed on the commutation assembly, the commutation assembly being able to drive the antenna to rotate circumferentially about the central axis of the support, or to drive the antenna to commutate in the horizontal or vertical direction; wherein, the commutation assembly includes at least a driving structure and a base driven by the driving structure, and the antenna is mounted on the base.

[0005] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the driving structure includes at least a first driving device fixedly configured on the bracket, a commutator plate rotatably mounted on the bracket and driven to rotate by the first driving device, and a second driving device configured on the commutator plate, wherein the base is rotatably mounted on the commutator plate and driven to rotate by the second driving device.

[0006] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the base is detachably configured on the commutator plate.

[0007] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio (VSWR) testing system, a first limiting block is configured at the first position of the commutator plate, and a second limiting block is configured at the second position of the commutator plate; when the base drives the antenna to a vertical position, the base is stopped and limited by the first limiting block, and when the base drives the antenna to a horizontal position, the base is stopped and limited by the second limiting block.

[0008] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the first limiting block and the second limiting block are detachably configured on the base.

[0009] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio (VSWR) testing system, a clamping structure is provided on the base, and the antenna is mounted on the base through the clamping structure.

[0010] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the bracket and the base are made of rigid plastic.

[0011] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, an outer frame with a frame-like structure is also included, which is disposed on the side of the linear module.

[0012] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the outer frame has a counterweight on the side away from the linear module.

[0013] In the preferred embodiment of the above-mentioned anechoic chamber voltage standing wave ratio testing system, the bottom of the outer frame is equipped with rollers.

[0014] The beneficial effect of this utility model is that by controlling the horizontal part of the commutator to rotate circumferentially through the first driving device, and controlling the antenna to change from the vertical direction to the horizontal direction or from the horizontal direction to the vertical direction through the second driving device, the antenna transmission angle can be further adjusted, thereby improving the accuracy of voltage standing wave ratio test data. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the antenna being adjusted to a horizontal position.

[0016] Figure 2 This is a schematic diagram showing the antenna being adjusted to a vertical position.

[0017] In the figure: linear module 1, bracket 2, drive structure 31, first drive device 311, commutator 312, second drive device 313, base 32, antenna 4, first limiting block 5, second limiting block 6, outer frame 7. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1 to 2 As shown, the voltage standing wave ratio (VSWR) testing system for an anechoic chamber of this invention includes: a linear module 1, which drives a support 2 to move horizontally; a commutation assembly, which is configured on the support 2 and has an antenna 4 mounted on it. The commutation assembly can drive the antenna 4 to rotate circumferentially around the central axis of the support 2, or drive the antenna 4 to commutate in the horizontal or vertical direction; wherein the commutation assembly includes at least a driving structure 31 and a base 32 driven by the driven structure 31, and the antenna 4 is mounted on the base 32.

[0022] See Figure 1 , Figure 2 The linear module 1 is a mature technology. The linear module 1 includes at least a slider that can be linearly driven, and the bracket 2 is vertically mounted on the slider. The commutation assembly includes at least a drive structure 31 and a base 32, wherein the signal transmitting antenna 4 is configured on the base 32. The drive structure 31 can drive the base 32 to rotate circumferentially on the bracket 2, or drive the base 32 to change from the vertical direction to the horizontal direction on the bracket 2, or drive the base 32 to change from the horizontal direction to the vertical direction on the bracket 2.

[0023] When performing voltage standing wave ratio (VSWR) testing, the linear module 1 is first used to drive the bracket 2 and the commutation assembly and antenna 4 configured on it to move to a predetermined position. Then, the commutation assembly is used to drive the base 32 to perform a commutation operation, so that the antenna 4 configured on the base 32 can automatically and accurately complete the commutation operation. Afterward, the antenna 4 emits a signal and records relevant data to analyze the difference between the reflected wave and the incident wave, thereby calculating the voltage standing wave ratio. This application has the characteristics of high automation, high detection efficiency and high testing accuracy by using the linear module 1 and the commutation module to drive the antenna 4 to move and commutate, and it is practical.

[0024] In one or more embodiments, the drive structure 31 includes at least a first drive device 311 fixedly disposed on the bracket 2, a commutator plate 312 rotatably mounted on the bracket 2 and driven to rotate by the first drive device 311, and a second drive device 313 disposed on the commutator plate 312, wherein the base 32 is rotatably mounted on the commutator plate 312 and driven to rotate by the second drive device 313; the base 32 is detachably disposed on the commutator plate 312.

[0025] See Figure 2 The first drive device 311 can be either a servo motor or a rotary cylinder, and the second drive device 313 can be either a servo motor or a rotary cylinder. The commutator plate 312 has a horizontal portion and a vertical portion connected to each other. The horizontal portion of the commutator plate 312 is driven to rotate by the first drive device 311, and the vertical portion of the commutator plate 312 is disposed on the outer periphery of the bracket 2. When the first portion of the commutator plate 312 is driven, the second drive device 313 disposed on the vertical portion of the commutator plate 312, the base 32, and the antenna 4 all rotate around the bracket 2. The second drive device 313 is disposed on the vertical portion of the commutator plate 312 on the side closer to the bracket 2, and the base 32 and the antenna 4 are disposed on the vertical portion of the commutator plate 312 on the side farther from the bracket 2.

[0026] Specifically, when adjusting the signal transmission angle of antenna 4, the first driving device 311 can be used to control the horizontal part of the commutator 312 to rotate circumferentially. After the antenna 4 rotates around the bracket 2 to the predetermined position, the control of the first driving device 311 is stopped. Then, the second driving device 313 is used to control the antenna 4 to change from the vertical direction to the horizontal direction, or from the horizontal direction to the vertical direction, so as to further adjust the transmission angle of antenna 4 and improve the accuracy of voltage standing wave ratio test data.

[0027] In one or more embodiments, a first limiting block 5 is disposed at a first position of the commutator plate 312, and a second limiting block 6 is disposed at a second position of the commutator plate 312; when the base 32 drives the antenna 4 to move to a vertical state, the base 32 is stopped and limited by the first limiting block 5, and when the base 32 drives the antenna 4 to move to a horizontal state, the base 32 is stopped and limited by the second limiting block 6; the first limiting block 5 and the second limiting block 6 are detachably disposed on the base 32.

[0028] See Figure 1 , Figure 2 The position of the base 32 is restricted by the first limiting block 5 and the second limiting block 6, so that the antenna 4 can remain absolutely vertical or absolutely horizontal on the vertical part of the commutator plate 312, thereby further improving the accuracy of the signal transmission angle of the antenna 4. In addition, the first limiting block 5 and the second limiting block 6 are detachably configured on the base 32 by bolts, which can remove the restriction of the first limiting block 5 and the second limiting block 6 on the base 32, allowing the antenna 4 mounted on the base 32 to have more transmission angles, thereby improving the detection range of this application.

[0029] In one or more embodiments, a clamping structure is provided on the base 32, and the antenna 4 is mounted on the base 32 through the clamping structure. The clamping structure is not shown in the attached figure. The clamping structure can be a clamp, a clip, etc., and there is no specific limitation. With this setting, the antenna 4 can be quickly installed and removed from the base 32, thereby improving the testing efficiency of voltage standing wave ratio.

[0030] In one or more embodiments, the bracket 2 and the base 32 are made of rigid plastic.

[0031] In one or more embodiments, it further includes an outer frame 7 with a frame-like structure, the outer frame 7 being disposed on the side of the linear module 1; the outer frame 7 having a counterweight on the side away from the linear module 1; and rollers being disposed at the bottom of the outer frame 7.

[0032] See Figure 2 The counterweights on the outer frame 7 can balance the overall center of gravity of this application and ensure the stability of the antenna 4 during detection. The rollers at the bottom of the outer frame 7 can facilitate the movement of the outer frame 7, thereby further improving the efficiency of adjusting the position of the antenna 4.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A voltage standing wave ratio (VSWR) testing system for an anechoic chamber, characterized in that, include: A linear module for driving the support to move horizontally; A commutation assembly is disposed on the bracket, and an antenna is disposed on the commutation assembly. The commutation assembly is capable of driving the antenna to rotate circumferentially about the central axis of the bracket, or driving the antenna to commutate in the horizontal or vertical direction. The commutation assembly includes at least a driving structure and a base driven by the driving structure, and the antenna is mounted on the base.

2. The anechoic chamber voltage standing wave ratio testing system according to claim 1, characterized in that: The drive structure includes at least a first drive device fixedly mounted on the bracket, a reversing plate rotatably mounted on the bracket and driven to rotate by the first drive device, and a second drive device mounted on the reversing plate, wherein the base is rotatably mounted on the reversing plate and driven to rotate by the second drive device.

3. The anechoic chamber voltage standing wave ratio testing system according to claim 2, characterized in that: The base is detachably mounted on the commutator plate.

4. The anechoic chamber voltage standing wave ratio testing system according to claim 2, characterized in that: A first limiting block is configured at the first position of the commutator plate, and a second limiting block is configured at the second position of the commutator plate; when the base drives the antenna to a vertical position, the base is stopped and limited by the first limiting block, and when the base drives the antenna to a horizontal position, the base is stopped and limited by the second limiting block.

5. The anechoic chamber voltage standing wave ratio testing system according to claim 4, characterized in that: The first limiting block and the second limiting block are detachably mounted on the base.

6. The anechoic chamber voltage standing wave ratio testing system according to claim 1, characterized in that: The base is provided with a clamping structure, and the antenna is mounted on the base through the clamping structure.

7. The anechoic chamber voltage standing wave ratio testing system according to claim 1, characterized in that: The bracket and the base are made of rigid plastic.

8. The anechoic chamber voltage standing wave ratio testing system according to claim 1, characterized in that: It also includes an outer frame with a frame-like structure, which is disposed on the side of the linear module.

9. The anechoic chamber voltage standing wave ratio testing system according to claim 8, characterized in that: The outer frame has a counterweight on the side away from the linear module.

10. The anechoic chamber voltage standing wave ratio testing system according to claim 8, characterized in that: The bottom of the outer frame is equipped with rollers.

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