Radiation stray testing device

Abstract

The utility model discloses a radiation stray test device, relates to the wireless communication test technology field, the radiation stray test device comprises a shielding box, a mounting rack, a first antenna, a driving assembly and a control assembly, the shielding box is internally provided with a test cavity, the first antenna and the mounting rack are oppositely arranged, the driving assembly is arranged in the test cavity, and the control assembly is arranged in the test cavity. The driving assembly and the mounting frame are distributed at intervals in the first direction, the driving assembly is connected with the first antenna, and the control assembly is electrically connected with the driving assembly and the first antenna. The communication equipment can be fixed on the mounting frame, and under the control of the control assembly, the driving assembly can drive the first antenna to move in the second direction or the third direction. Therefore, the first antenna can move to a plurality of positions around the communication equipment, and parameters such as radiation frequency at the plurality of positions can be acquired at the same time, so that the radiation stray test is completed. In the process, the radiation stray testing device can perform automatic testing, manual operation is avoided, and the working efficiency and the testing precision of radiation stray testing are improved.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication testing technology, and in particular to a radiated stray emission testing device. Background Technology

[0002] Radiated Spurious Emission (RSE) testing is a part of electromagnetic compatibility (EMC) testing. The primary reason for conducting RSE testing on communication equipment is to assess unwanted electromagnetic radiation generated by the wireless communication device or transmitter outside its operating frequency range. This unwanted radiation is called "spurious emissions" because it is outside the device's intended operating frequency range. The goal of RSE testing is to ensure that the device does not interfere with other wireless communication devices during transmission and to ensure that it does not introduce unnecessary spurious radiation within the radio frequency band. Through RSE testing, it is ensured that wireless communication equipment meets relevant standards, thereby guaranteeing the device's compatibility and performance in real-world usage environments.

[0003] In radiated spurious emissions testing, to comprehensively test communication equipment, test antennas are often placed sequentially at multiple locations around the equipment to detect radiated frequencies at these locations. However, current radiated spurious emissions testing still relies on manual adjustment of the test antennas. This manual operation reduces the efficiency of the testing process and may introduce human error. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned related technologies, this application provides a radiation stray emission testing device to solve the above-mentioned technical problems.

[0005] This application provides a radiated spurious emissions testing device for testing communication equipment. The radiated spurious emissions testing device includes a shielded box, a mounting frame, a first antenna, a driving component, and a control component. The shielded box has a test cavity. The mounting frame is used to fix the communication equipment and can slide into or out of the test cavity. The first antenna is arranged opposite to the mounting frame. The driving component is disposed in the test cavity. The driving component and the mounting frame are spaced apart along a first direction. The driving component is connected to the first antenna. The control component is electrically connected to the driving component and the first antenna. Under the control of the control component, the driving component can drive the first antenna to move along a second direction or a third direction. Any two of the first direction, the second direction, and the third direction intersect.

[0006] In one embodiment of this application, the driving component includes a first driving structure and a second driving structure. The first driving structure is fixed inside the test cavity and slides with the second driving structure. The first driving structure is used to drive the second driving structure to move in a third direction. The second driving structure is connected to the first antenna and is used to drive the first antenna to move in a third direction.

[0007] In one embodiment of this application, the driving component includes a first guide rail, which is distributed along a second direction. A second driving structure is slidably disposed on the first guide rail. The first driving structure includes a first driving motor, a first transmission rod, a first synchronization mechanism, and a second synchronization mechanism. The first transmission rod is drivingly connected to the first driving motor. The first synchronization mechanism and the second synchronization mechanism are connected to opposite ends of the first transmission rod. The first synchronization mechanism and the second synchronization mechanism are used to drive the second driving structure.

[0008] In one embodiment of this application, both the first synchronization mechanism and the second synchronization mechanism include a first pulley, a second pulley, and a timing belt. The first pulley and the second pulley are distributed along a second direction and fixed inside a shielding box. The first pulley and the second pulley are driven by the timing belt. The first transmission rod is driven by the first pulley. The second drive structure is provided with a drive block, which meshes with the timing belt.

[0009] In one embodiment of this application, the second driving structure includes a fixed frame, a second driving motor, a second transmission rod, and a clamping member. The first driving structure is drivenly connected to the fixed frame. The second driving motor and the second transmission rod are disposed on the fixed frame. The second transmission rod is drivenly connected between the second driving motor and the clamping member. The fixed frame is provided with a second guide rail. The extension direction of the second guide rail is a third direction. The clamping member is slidably disposed on the second guide rail and is connected to the first antenna.

[0010] In one embodiment of this application, the surface of the mounting bracket is provided with a plurality of fixing blocks, which are spaced apart and form a clamping space for fixing communication equipment.

[0011] In one embodiment of this application, a guide rod and a pneumatic component are provided inside the shielding box. The mounting bracket is slidably disposed on the guide rod. One end of the pneumatic component is connected to the mounting bracket, and the other end is connected to the shielding box and is located on the surface of the mounting bracket away from the fixed block. The pneumatic component is electrically connected to a control assembly and is used to drive the mounting bracket to slide into or out of the test chamber.

[0012] In one embodiment of this application, a sensor is provided inside the shielding box. The sensor is electrically connected to the control component. The sensor is used to acquire the position information of the mounting bracket. The control component is used to control the pneumatic component to close when the mounting bracket moves to a preset position.

[0013] In one embodiment of this application, the test chamber has an opening, and the mounting bracket is slidably disposed at the opening. The extension direction of the guide rod is parallel to the central axis of the opening. The mounting bracket can slide into or out of the test chamber through the opening. When the mounting bracket slides into the test chamber, the mounting bracket closes the opening.

[0014] In one embodiment of this application, the radiated stray radiation testing apparatus further includes a second antenna, which is located on the side of the mounting frame away from the first antenna, and the second antenna is electrically connected to the control assembly.

[0015] In one embodiment of this application, the first antenna is a dual-polarized antenna.

[0016] In one embodiment of this application, the second antenna is a radiated spurious ultra-wideband antenna.

[0017] In one embodiment of this application, the length of the second antenna is 220mm-280mm.

[0018] The technical solution adopted in this invention achieves the following beneficial effects: the shielding box can shield external interference signals to improve test accuracy. The communication equipment can be fixed on the mounting bracket, and the mounting bracket and the communication equipment slide together into the test chamber. Under the control of the control component, the drive component can drive the first antenna to move along the second or third direction. This allows the first antenna to move to multiple positions around the communication equipment and simultaneously collect parameters such as radiation frequency at multiple positions to complete the radiated spurious emissions test. In this process, the radiated spurious emissions test device can automate the test, avoiding manual operation, improving the efficiency of the radiated spurious emissions test, and also avoiding the introduction of human error, thus improving the test accuracy of the radiated spurious emissions test device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0020] Figure 1 This is a schematic diagram of the structure of a radiation stray emission testing device shown in an exemplary embodiment of this application;

[0021] Figure 2 This is a cross-sectional view of a radiation stray emission testing apparatus from another perspective, as shown in an exemplary embodiment of this application;

[0022] Figure 3 This is a cross-sectional view of a radiation stray emission testing apparatus illustrated in an exemplary embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the mounting bracket structure shown in an exemplary embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of a driving component shown in an exemplary embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the driving component from another perspective, as shown in an exemplary embodiment of this application.

[0026] In the figure: 1. Radiated stray emission testing device; 11. Shielding box; 111. Test chamber; 112. Guide rod; 113. Pneumatic component; 114. Opening; 115. Sensor; 12. Mounting bracket; 121. Fixing block; 122. Clamping space; 123. Mounting shell; 124. Mounting space; 13. First antenna; 14. Drive assembly; 141. First drive structure; 1411. First drive motor; 1412. First transmission rod ; 1413, First synchronization mechanism; 1414, Second synchronization mechanism; 1415, First pulley; 1416, Second pulley; 1417, Synchronous belt; 142, Second drive structure; 1421, Fixing frame; 1422, Second drive motor; 1423, Second transmission rod; 1424, Clamping component; 1425, Second guide rail; 1426, Drive block; 15, Control component; 16, First guide rail; 17, Second antenna. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] The primary reason for conducting radiated spurious emissions testing on communication equipment is to assess unwanted electromagnetic radiation generated by wireless communication devices or transmitters outside their operating frequency range. This unwanted radiation is called "spurious emissions" because it is outside the device's intended operating frequency range.

[0030] Radiated spurious emissions testing includes, but is not limited to, testing the signal coverage of communication equipment. During this testing process, the test antenna needs to be manually adjusted to ensure it is positioned appropriately within the surrounding environment. However, this manual operation reduces the efficiency of radiated spurious emissions testing and may introduce human error.

[0031] This application provides a radiation stray emission testing device 1. Please refer to [link / reference]. Figure 1 The radiated spurious emissions testing device 1 is used to test communication equipment. This communication equipment includes, but is not limited to, mobile phones, wireless routers, Bluetooth devices, etc. For ease of understanding in the following sections, a mobile phone will be used as an example to describe the communication equipment.

[0032] Please refer to the following: Figure 2 as well as Figure 3 The radiated stray emission testing device 1 may include a shielding box 11, a mounting frame 12, a first antenna 13, a drive assembly 14, and a control assembly 15. The mounting frame 12, the first antenna 13, the drive assembly 14, and the control assembly 15 are all disposed inside the shielding box 11. The first antenna 13 and the mounting frame 12 are disposed correspondingly. The drive assembly 14 and the first antenna 13 are interconnected and electrically connected to the control assembly 15.

[0033] Please refer to the previous document. Figure 1 The shielded enclosure 11 contains a test chamber 111. The shielded enclosure 11 has excellent electromagnetic shielding performance, effectively blocking the entry of external electromagnetic signals and ensuring the relative independence and stability of the test chamber 111, thereby improving the anti-interference capability within the test chamber 111. For example, the shielded enclosure 11 may include a metal shell and an absorbing structure, the absorbing structure being disposed on the metal shell. The metal shell reflects electromagnetic waves, preventing them from propagating into the shielded enclosure 11. The absorbing material absorbs the energy of the electromagnetic waves and converts it into other forms of energy (such as heat) and dissipates it.

[0034] Preferably, the shielding box 11 is sealed, with all four sides of the shielding box 11 sealed to ensure its airtightness. This prevents external electromagnetic waves from entering the test chamber 111 through gaps, further improving the shielding effect of the shielding box 11.

[0035] Please see Figure 2 Mounting bracket 12 is used to secure the communication equipment. Mounting bracket 12 helps ensure testing accuracy and also protects the communication equipment from damage. Further details can be found in the following section. Figure 4 The mounting bracket 12 has multiple fixing blocks 121 on its surface. The number of fixing blocks 121 can be two, three, or even more, and there is no limitation. The fixing blocks 121 can be metal or plastic blocks, etc. The multiple fixing blocks 121 are spaced apart and form a clamping space 122, which is used to fix the communication equipment. The fixing blocks 121 can abut against the communication equipment from multiple directions, ensuring that the communication equipment will not shake or shift during testing. This multi-directional fixing method greatly improves the stability of the communication equipment, enabling it to more accurately reflect its performance.

[0036] For a better option, please continue reading. Figure 4 The radiated stray emission testing device 1 also includes a mounting housing 123, which is adaptable to the communication device under test. The mounting housing 123 has a mounting space 124 within which the communication device can be installed. Furthermore, the mounting housing 123 is correspondingly positioned to a clamping space 122, and the mounting housing 123 can be detachably installed within the clamping space 122. Therefore, the tester can pre-install the communication device within the mounting housing 123 and then fix the mounting housing 123 within the clamping space 122, with the fixing block 121 abutting against the mounting housing 123, not the communication device. This prevents the fixing block 121 from directly scraping or squeezing the communication device, ensuring the safety of the communication device during testing.

[0037] Mounting bracket 12 can slide into or out of test chamber 111. Before testing begins, the operator can easily slide mounting bracket 12 out of test chamber 111 and secure it to the outside of shielding box 11, as well as to the communication equipment. Mounting bracket 12 slides into test chamber 111 for testing. After testing, it is slid out again. Mounting bracket 12 not only saves time but also improves work efficiency. More importantly, it avoids the hassle of frequently disassembling and reinstalling communication equipment during testing, thereby reducing the risk of equipment damage.

[0038] In this embodiment, please refer to Figure 1 The shielded box 11 contains a guide rod 112 and a pneumatic component 113. The pneumatic component 113 can be a cylinder or a pneumatic motor, etc., and is not limited thereto. The mounting bracket 12 is slidably mounted on the guide rod 112, which serves a guiding function, preventing the mounting bracket 12 from deviating from a preset path. The guide rod 112 allows the mounting bracket 12 to smoothly slide into or out of the test chamber 111, avoiding test errors caused by shaking or displacement.

[0039] One end of the pneumatic component 113 is connected to the mounting bracket 12, and the other end is connected to the shielding box 11. The pneumatic component 113 is located on the surface of the mounting bracket 12 away from the fixing block 121. This arrangement not only ensures that the pneumatic component 113 can stably push the mounting bracket 12, but also avoids interference between the pneumatic component 113 and the fixing block 121 or other components.

[0040] Please refer to the following: Figure 1 as well as Figure 3Pneumatic component 113 is electrically connected to control component 15 and is used to drive mounting bracket 12 to slide into or out of test chamber 111. For example, before the test begins, control component 15 can send a signal to pneumatic component 113, causing it to drive mounting bracket 12 into test chamber 111. After the test is completed, control component 15 sends another signal, and pneumatic component 113 drives mounting bracket 12 to slide out automatically, without manual operation. Through a preset program, control component 15 can automatically activate pneumatic component 113 after the test, driving mounting bracket 12 out of test chamber 111, thereby further reducing manual operation steps and improving test accuracy. At the same time, the rapid response and precise control of pneumatic component 113 also shortens the test cycle and improves work efficiency.

[0041] Preferably, please refer to Figure 3 A sensor 115 is installed inside the shielded enclosure 11. The sensor 115 can be an infrared distance sensor or a limit switch, etc. The working principle of the sensor 115 may be based on various technologies such as photoelectric, magnetic induction, and mechanical contact, and no limitation is imposed here. The sensor 115 is electrically connected to the control component 15 and is used to acquire the position information of the mounting bracket 12. The control component 15 is used to control the pneumatic component 113 to close when the mounting bracket 12 moves to a preset position. The preset position can be the position of the mounting bracket 12 during the test. The sensor 115 not only ensures the stability and accuracy of the mounting bracket 12 during the test, but also avoids the risk of affecting the detection accuracy due to the mounting bracket 12 not being in position.

[0042] In one implementation, please refer again. Figure 1 The test chamber 111 has an opening 114, and a mounting bracket 12 is slidably disposed at the opening 114. The extension direction of the guide rod 112 is parallel to the central axis of the opening 114, allowing the mounting bracket 12 to slide into or out of the test chamber 111 through the opening 114. This design allows the mounting bracket 12 to easily slide into or out of the test chamber 111 through the opening 114, thus facilitating the placement or removal of the object under test. When the mounting bracket 12 slides into the test chamber 111, it closes the opening 114. This closure effectively prevents external signals from entering the test chamber 111 through the opening 114, thus avoiding interference with the test results of the object under test.

[0043] In this embodiment, please refer to Figure 3 The first antenna 13 can be a dual-polarized antenna. A dual-polarized antenna features orthogonal polarization directions and full-duplex transmission / reception. The two antennas in the dual-polarized antenna have mutually orthogonal polarization directions, enabling the first antenna 13 to simultaneously process signals with two different polarization directions. The first antenna 13 is positioned opposite to the mounting bracket 12.

[0044] Furthermore, the first antenna 13 can be positioned relative to the clamping space of the mounting bracket 12, allowing the first antenna 13 to test the signal coverage range of the communication equipment. The first antenna 13 is electrically connected to the control component 15, and can receive or transmit signals. Its signal characteristics are acquired by the control component 15, which is beneficial for subsequent experimental recording. This setup can automatically record and summarize experimental data, reducing manual recording and avoiding the introduction of human error.

[0045] In this embodiment, please refer to the following: Figure 3 as well as Figure 5 The drive assembly 14 is disposed within the test chamber 111 and can be fixedly or detachably connected to the shielding box 11. For example, the drive assembly 14 can be detachably installed within the shielding box 11, allowing the test personnel to remove the drive assembly 14 entirely from the shielding box 11 after testing or during subsequent maintenance, thus enabling maintenance in a larger space. The drive assembly 14 and the mounting bracket 12 are aligned along a first direction (e.g., ...). Figure 3 (As shown in the z-direction) The drive component 14 is connected to the first antenna 13, and the connection method between the two includes, but is not limited to, fastener connection or snap-fit ​​connection.

[0046] Control component 15 is electrically connected to drive component 14. Under the control of control component 15, drive component 14 can drive the first antenna 13 along a second direction (e.g., Figure 3 (as shown in the x-direction) or a third direction (such as...) Figure 3 (As shown in the y-direction). Under the control of the control component 15, the drive component 14 can drive the first antenna 13 to move along the second or third direction. This allows the first antenna 13 to move to multiple locations around the communication device and simultaneously collect parameters such as the radiation frequency at multiple locations to complete the radiated spurious emissions test.

[0047] Furthermore, the first antenna 13 is electrically connected to the control component 15, and the signal received by the first antenna 13 at different locations is recorded. This enables the radiated spurious emissions testing device 1 to perform automated testing, avoiding manual operation, improving the efficiency of radiated spurious emissions testing, and also avoiding the introduction of human error, thereby improving the testing accuracy of the radiated spurious emissions testing device 1.

[0048] Understandably, such as Figure 5 As shown, any two of the first direction, the second direction, and the third direction intersect. Furthermore, any two of the first direction, the second direction, and the third direction are perpendicular. For example, the first direction can be the z-axis of a three-dimensional coordinate system, the second direction can be the x-axis of a three-dimensional coordinate system, and the third direction can be the y-axis of a three-dimensional coordinate system.

[0049] In this embodiment, please refer to Figure 5The driving component 14 may include a first driving structure 141 and a second driving structure 142. The first driving structure 141 is fixed inside the test cavity 111 and slides with the second driving structure 142. The first driving structure 141 is used to drive the second driving structure 142 to move along a third direction. The second driving structure 142 is connected to the first antenna 13 and is used to drive the first antenna 13 to move along a third direction. The first driving structure 141 and the second driving structure 142 are electrically connected to a uniform control component 15. The control component 15 can control the working state of the first driving structure 141 and the second driving structure 142 respectively, such as an on state or an off state, so that the first antenna 13 can move between different positions, thereby improving the control effect and positional accuracy of the first antenna 13.

[0050] In one implementation, please refer to Figure 5 as well as Figure 6 The driving component 14 may include a first guide rail 16, which is distributed along a second direction. The first guide rail 16 has a guiding function, and the second driving structure 142 is slidably disposed on the first guide rail 16. The first guide rail 16 can guide the second driving structure 142 to move along the second direction, avoiding sliding deviation of the second driving structure 142 and affecting the test accuracy.

[0051] The first drive structure 141 may include a first drive motor 1411, a first transmission rod 1412, a first synchronization mechanism 1413, and a second synchronization mechanism 1414. The first drive motor 1411 is energized and can rotate, and its power, speed, and direction are all adjustable. For example, a tester can control the first drive motor 1411 to rotate clockwise or counterclockwise. The first transmission rod 1412 is connected to the first drive motor 1411. The first synchronization mechanism 1413 and the second synchronization mechanism 1414 are connected to opposite ends of the first transmission rod 1412, and are used to drive the second drive structure 142. The first synchronization mechanism 1413 and the second synchronization mechanism 1414 can transmit the power from the transmission rod evenly and synchronously to the second drive structure 142, driving the second drive structure 142 and the first antenna 13 to move, and achieving torque transmission balance. This arrangement ensures that the driving force is applied evenly on both sides of the second drive structure 142, effectively preventing deviation or unstable movement caused by torque imbalance.

[0052] In a more specific implementation, please refer again. Figure 3Both the first synchronization mechanism 1413 and the second synchronization mechanism 1414 include a first pulley 1415, a second pulley 1416, and a synchronization belt 1417. For ease of understanding, the following description uses the first synchronization mechanism 1413 as an example. The first pulley 1415 and the second pulley 1416 are distributed along a second direction and are fixed inside the shielding box 11. The size and shape of the first pulley 1415 and the second pulley 1416 can be the same or different, and are not limited here. The first pulley 1415 and the second pulley 1416 are driven by the synchronization belt 1417, and the first pulley 1415 and the second pulley 1416 are tightly connected by the synchronization belt 1417.

[0053] Please continue reading. Figure 3 as well as Figure 5 The first transmission rod 1412 is connected to the first pulley 1415, and the second drive structure 142 is provided with a drive block 1426, which meshes with the synchronous belt 1417. For example, when the first drive motor 1411 starts, its power is transmitted to the first pulley 1415, which in turn drives the second pulley 1416 to rotate synchronously via the synchronous belt 1417. The drive block 1426 located on the synchronous belt 1417 moves accordingly, thereby driving the second drive structure 142 to move along the direction of the first guide rail 16.

[0054] Understandably, the synchronized operation of the first synchronization mechanism 1413 and the second synchronization mechanism 1414 ensures that power is applied evenly to both sides of the second drive structure 142, effectively preventing deviation or unstable movement caused by torque imbalance. Therefore, the second drive structure 142 can stably and accurately complete the predetermined movement task.

[0055] Meanwhile, please see Figure 5 as well as Figure 6 The second drive structure 142 includes a fixed frame 1421, a second drive motor 1422, a second transmission rod 1423, and a clamping member 1424. The second drive motor 1422 is energized and can rotate, and its power, speed, and direction are all adjustable. For example, a tester can control the second drive motor 1422 to rotate clockwise or counterclockwise. The first drive structure 141 is connected to the fixed frame 1421, and the second drive motor 1422 and the second transmission rod 1423 are mounted on the fixed frame 1421. For example, the first drive structure 141 can directly drive the fixed frame 1421 to move the second drive motor 1422 and the second transmission rod 1423 together.

[0056] Please refer to the figure. The second transmission rod 1423 is connected between the second drive motor 1422 and the clamping member 1424. The fixing frame 1421 is provided with a second guide rail 1425, which extends in a third direction. The clamping member 1424 is slidably disposed on the second guide rail 1425, which has a guiding function, guiding the clamping member 1424 to move in a third direction. The clamping member 1424 is connected to the first antenna 13, and thus the first antenna 13 can also move in a third direction along with the clamping member 1424. For example, when the second drive motor 1422 is started, its power is transmitted to the second transmission rod 1423, and the clamping member 1424 located on the second transmission rod 1423 will move accordingly, thereby driving the first antenna 13 to move along the direction of the second guide rail 1425.

[0057] In this embodiment, please refer to Figure 3 The radiated spurious emission testing device 1 may further include a second antenna 17. For example, the second antenna 17 may be a radiated spurious emission ultra-wideband antenna, which can cooperate with the first antenna 13, reducing calibration complexity, etc. The second antenna 17 is located on the side of the mounting bracket 12 away from the first antenna 13, and is electrically connected to the control component 15. The second antenna 17 can receive or transmit signals, and its signal status will be acquired by the control component 15, which is beneficial for subsequent experimental recording.

[0058] The length of the second antenna 17 is 220mm-280mm, such as 220mm, 250mm, or 280mm, and is not limited here. Setting the length of the second antenna 17 too large may exceed its designed operating frequency range, leading to reduced antenna efficiency and gain. Smaller sizes of the second antenna 17 mean lower efficiency and narrower bandwidth, which may limit the antenna's communication performance and coverage. A second antenna 17 of appropriate length can improve efficiency and gain without limiting performance or coverage.

[0059] The technical solution adopted in this utility model can achieve the following beneficial effects: the shielding box 11 can shield external interference signals to improve test accuracy. The communication equipment can be fixed on the mounting bracket 12, and the mounting bracket 12 and the communication equipment slide into the test chamber 111 together. Under the control of the control component 15, the drive component 14 can drive the first antenna 13 to move along the second or third direction. This allows the first antenna 13 to move to multiple positions around the communication equipment and simultaneously collect parameters such as radiation frequency at multiple positions to complete the radiated spurious emissions test. In this process, the radiated spurious emissions test device 1 can automate the test, avoid manual operation, improve the working efficiency of the radiated spurious emissions test, and also avoid introducing human error, thereby improving the test accuracy of the radiated spurious emissions test device 1.

[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0061] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0062] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A radiated spurious emissions test apparatus for testing a communications device, characterized by, The radiation stray test device comprises: a shielding box (11) having a test cavity (111) therein; a mounting rack (12) for fixing the communication equipment, the mounting rack (12) being capable of sliding into or out of the test cavity (111); a first antenna (13) oppositely arranged with the mounting rack (12); a driving assembly (14) arranged in the test cavity (111), the driving assembly (14) and the mounting rack (12) being spaced apart along a first direction, the driving assembly (14) being connected with the first antenna (13); and a control assembly (15) electrically connected with the driving assembly (14) and the first antenna (13); wherein, under the control of the control assembly (15), the driving assembly (14) is capable of driving the first antenna (13) to move along a second direction or a third direction, any two of the first direction, the second direction and the third direction intersecting.

2. The radiation straying test device of claim 1, wherein, The driving assembly (14) comprises a first driving structure (141) and a second driving structure (142), the first driving structure (141) being fixed in the test cavity (111) and being in sliding fit with the second driving structure (142), the first driving structure (141) being used for driving the second driving structure (142) to move along the third direction, the second driving structure (142) being connected with the first antenna (13) and being used for driving the first antenna (13) to move along the third direction.

3. The radiation straying test device of claim 2, wherein, The driving assembly (14) comprises a first guide rail (16) distributed along the second direction, the second driving structure (142) being slidingly arranged in the first guide rail (16), the first driving structure (141) comprising a first driving motor (1411), a first transmission rod (1412), a first synchronization mechanism (1413) and a second synchronization mechanism (1414), the first transmission rod (1412) being in transmission connection with the first driving motor (1411), the first synchronization mechanism (1413) and the second synchronization mechanism (1414) being connected to opposite ends of the first transmission rod (1412), the first synchronization mechanism (1413) and the second synchronization mechanism (1414) being used for driving the second driving structure (142).

4. The radiation straying test device of claim 3, wherein, The first synchronization mechanism (1413) and the second synchronization mechanism (1414) each include a first pulley (1415), a second pulley (1416) and a synchronous belt (1417), the first pulley (1415) and the second pulley (1416) are distributed along the second direction and fixed in the shielding box (11), the first pulley (1415) and the second pulley (1416) are in transmission connection with the synchronous belt (1417), the first transmission rod (1412) is in transmission connection with the first pulley (1415), and the second driving structure (142) is provided with a driving block (1426) in mesh with the synchronous belt (1417).

5. The radiation straying test device according to any one of claims 2 to 4, characterized in that, The second driving structure (142) includes a fixing frame (1421), a second driving motor (1422), a second transmission rod (1423) and a clamping piece (1424), the first driving structure (141) is in transmission connection with the fixing frame (1421), the second driving motor (1422) and the second transmission rod (1423) are arranged on the fixing frame (1421), the second transmission rod (1423) is in transmission connection between the second driving motor (1422) and the clamping piece (1424), the fixing frame (1421) is provided with a second guide rail (1425), the extending direction of the second guide rail (1425) is the third direction, and the clamping piece (1424) is slidably arranged on the second guide rail (1425) and connected with the first antenna (13).

6. The radiation stray test device of claim 1, wherein, The surface of the mounting frame (12) is provided with a plurality of fixing blocks (121), the fixing blocks (121) are arranged at intervals and surround a clamping space, and the clamping space is used for fixing the communication equipment.

7. The radiation stray test device of claim 6, wherein, The shielding box (11) is provided with a guide rod (112) and a pneumatic piece (113), the mounting frame (12) is slidably arranged on the guide rod (112), one end of the pneumatic piece (113) is connected with the mounting frame (12), the other end of the pneumatic piece (113) is connected with the shielding box (11) and located away from the surface of the mounting frame (12) away from the fixing blocks (121), and the pneumatic piece (113) is electrically connected with the control assembly (15) and used for driving the mounting frame (12) to slide into or out of the test cavity (111).

8. The radiation stray test device of claim 7, wherein, The shielding box (11) is provided with a sensor (115), the sensor (115) is electrically connected with the control assembly (15), the sensor (115) is used for acquiring position information of the mounting frame (12), and the control assembly (15) is used for controlling the pneumatic piece (113) to be closed when the mounting frame (12) moves to a preset position. And / or, the test cavity (111) has an opening (114), the mounting rack (12) is slidingly arranged at the opening (114), the extension direction of the guide rod (112) is parallel to the central axis of the opening (114), the mounting rack (12) can slide into or slide out of the test cavity (111) through the opening (114), and the mounting rack (12) closes the opening (114) when the mounting rack (12) slides into the test cavity (111).

9. The radiation stray test device of claim 1, wherein, The radiation interference test device further comprises a second antenna (17), which is located on the side of the mounting rack (12) away from the first antenna (13) and is electrically connected to the control assembly (15).

10. The radiation straying test device of claim 9, wherein, The first antenna (13) is a dual-polarized antenna. And / or, the second antenna (17) is a radiation interference ultra-wideband antenna. And / or, the length of the second antenna (17) is 220mm-280mm.

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