Antenna test tool and antenna test equipment

Abstract

The invention provides an antenna testing tool and antenna testing equipment. The antenna testing tool comprises a supporting column and a testing frame which is coaxially arranged with the supporting column. Wherein the length of the testing frame is adjustable, and the length of the supporting column is larger than that of the testing frame in the axis direction; the antenna test tool further comprises an adapter plate detachably connected with the test frame, the adapter plate and the test frame are coaxially arranged, and the adapter plate is used for fixing an antenna to be tested. The supporting column, the testing frame and the adapter plate are coaxially arranged, so that the antenna to be tested is supported to rotate around the same axis during testing. The length of the test frame is adjustable, so that the to-be-detected antenna can be adjusted to be located in the phase center by adjusting the test frame, and the detection accuracy is improved. Besides, the length of the testing frame is smaller than that of the supporting column, so that the adjustable part occupies a small area in the length direction of the whole antenna testing tool, and the stability of the whole antenna testing tool in the length direction is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna testing tool and antenna testing equipment. Background Art

[0002] People spend most of their time indoors. With the continuous development of wireless communication technology, the performance requirements of antennas in indoor distribution systems are also constantly increasing.

[0003] In the process of transmitting or receiving electromagnetic energy, the antenna needs to meet different directivity requirements due to different needs. For example, a directional antenna needs to concentrate energy in a specific direction and needs to generate a directional beam, while an omnidirectional antenna needs to generate a beam that covers all directions. The index parameter that describes the directivity of an antenna is the directional function, and the corresponding graphical representation is the directional pattern. In order to ensure that the antenna working directional pattern can meet the design requirements, its directivity needs to be tested.

[0004] However, when testing current equipment, the fixed posture of the antenna is relatively rough, which affects the accuracy of detection. Summary of the invention

[0005] The present application provides an antenna testing tool and an antenna testing device to improve the effect of antenna testing.

[0006] The present application provides an antenna testing tool, which includes a support column and a test frame coaxially arranged with the support column; wherein:

[0007] The test frame is a test frame with adjustable length, and along the axial direction, the length of the support column is greater than the length of the test frame;

[0008] The antenna testing tool also includes an adapter plate detachably connected to the test frame, the adapter plate is coaxially arranged with the test frame, and the adapter plate is used to fix the antenna to be tested.

[0009] In the above technical solution, the antenna to be tested is supported and fixed by using a support column and a test frame. The support column, the test frame and the adapter plate are coaxially arranged to support the antenna to be tested to rotate around the same axis during the test. The test frame adopts a length-adjustable test frame, so that the antenna to be tested can be adjusted to be located at the phase center by adjusting the test bracket to improve the accuracy of the test. In addition, the length of the test frame is shorter than the length of the support column, so that the adjustable part accounts for a small proportion in the length direction of the entire antenna test fixture, thereby ensuring the stability of the entire antenna test fixture in the length direction.

[0010] In a specific possible implementation scheme, the test frame includes a first connecting flange and a second connecting flange arranged at intervals along the axis direction of the test frame; and a telescopic column located between the first connecting flange and the second connecting flange; the number of the telescopic columns is multiple, and the multiple telescopic columns are arranged at intervals around the axis of the test frame; the two ends of each telescopic column are respectively connected to the first connecting flange and the second connecting flange in a one-to-one correspondence;

[0011] The first connecting flange is detachably fixedly connected to the supporting column;

[0012] The adapter plate is detachably connected to the second connecting flange.

[0013] In a specific possible implementation manner, the telescopic column includes a support tube and a telescopic rod sleeved in the support tube and movable relative to the telescopic rod, and also includes a locking member for locking the telescopic rod.

[0014] In a specific possible implementation mode, scale lines are provided on the telescopic rod.

[0015] In a specific possible implementation scheme, a slide groove is provided on the support tube, and the locking member is a locking bolt threadedly connected to the telescopic rod; wherein,

[0016] The threaded rod of the locking bolt is located in the slide groove, and the nut of the locking bolt is exposed outside the support tube; or,

[0017] The locking member is a locking bolt, which is threadedly connected to the support pipe and can be tightened against the telescopic rod.

[0018] In a specific possible implementation manner, the number of the telescopic columns is four, and the four telescopic columns are evenly distributed on the first connecting flange.

[0019] In a specific implementation scheme, a plurality of arc-shaped waist holes are provided on the first connecting flange, and the centers of the plurality of arc-shaped waist holes are located on the axis of the test frame;

[0020] It also includes a threaded connector that passes through each arc-shaped waist hole; the first connecting flange is detachably fixedly connected to the support column through the threaded connector.

[0021] In a specific possible implementation scheme, the support column includes a third connecting flange and a fourth connecting flange arranged at intervals along the axial direction of the support column, and a supporting rod disposed between the third connecting flange and the fourth connecting flange and used to connect the third connecting flange and the fourth connecting flange;

[0022] The third connecting flange is detachably fixedly connected to the first connecting flange.

[0023] In a specific possible implementation manner, the support column further includes at least one support plate located between the third connecting flange and the fourth connecting flange, and the support plate is fixedly connected to the support rod.

[0024] In a second aspect, an antenna testing device is provided, the antenna testing device comprising a darkroom, a testing platform arranged in the darkroom, and the antenna testing tooling as described in any one of the above items; wherein,

[0025] The support column is detachably fixedly connected to the test platform.

[0026] In the above technical solution, the antenna to be tested is supported and fixed by using a support column and a test frame. The support column, the test frame and the adapter plate are coaxially arranged to support the antenna to be tested to rotate around the same axis during the test. The test frame adopts a length-adjustable test frame, so that the antenna to be tested can be adjusted to be located at the phase center by adjusting the test bracket to improve the accuracy of the test. In addition, the length of the test frame is shorter than the length of the support column, so that the adjustable part accounts for a small proportion in the length direction of the entire antenna test fixture, thereby ensuring the stability of the entire antenna test fixture in the length direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of an omnidirectional ceiling antenna provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of an application scenario of the antenna testing tool provided in an embodiment of the present application;

[0029] Figure 3 An exploded schematic diagram of an antenna testing tool provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the structure of a test stand provided in an embodiment of the present application;

[0031] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0032] Figure 6 A schematic diagram of the structure of the support column provided in the embodiment of the present application;

[0033] Figure 7 A schematic diagram of the structure of the adapter board provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] To facilitate understanding of the antenna test tool provided in the embodiment of the present application, its application scenario is first described. The antenna test tool provided in the embodiment of the present application is used to test indoor antennas. Current indoor antennas include different types of antennas such as omnidirectional ceiling antennas and directional antennas. However, no matter which type of antenna is designed, its antenna performance needs to be tested to ensure that its performance meets the requirements. When testing the current indoor antenna, it is placed in a darkroom for testing. During the test, the indoor antenna needs to be placed in the phase center, which is located at the center of the darkroom. However, the current antenna test tool has low accuracy when supporting the indoor antenna and cannot be adjusted, resulting in a less than ideal test effect on the indoor antenna. For this reason, the embodiment of the present application provides an antenna test tool to improve the test effect on the indoor antenna. The following is a detailed description of it in conjunction with specific drawings and embodiments.

[0037] The antenna testing tool provided in the embodiment of the present application can test different types of indoor antennas. In the embodiment of the present application, an omnidirectional ceiling antenna is used as an example for illustration. Figure 1 As shown, Figure 1 The structure of the omnidirectional ceiling antenna is shown in FIG. The omnidirectional ceiling antenna is an indoor distributed antenna whose radiation pattern is evenly distributed around its axis. Figure 1 As shown, the omnidirectional ceiling antenna is usually fixed to the ceiling by a mounting stud 1 and a mounting nut 2 located at the center of the bottom. In indoor communication scenarios, omnidirectional ceiling antennas are used in the vast majority of cases. Therefore, the directional pattern detection of the omnidirectional ceiling antenna becomes extremely important. When testing the omnidirectional ceiling antenna, it is also fixedly connected to the antenna test fixture 100 through the bolt assembly.

[0038] At present, the omnidirectional ceiling antenna radiation pattern is usually tested using the near-field test method. Figure 2As shown, the basic principle of the near-field measurement method is to use a probe to detect the induction field of a closed surface surrounding the antenna near the antenna under test, and use the Lave equivalent principle to calculate the far-field directional pattern using the induction field. The microwave darkroom 400 is used to ensure the purity of the electromagnetic environment and eliminate external interference. A circle of test probes 500 distributed along the circumference is provided on the vertical plane at the center of the microwave darkroom 400 to detect the induction field of a vertical closed surface of the omnidirectional ceiling antenna 300. The rotation centerline of the test turntable 200 is located on the vertical plane where the test probe 500 is located, and it can rotate 360° horizontally around the axis. The omnidirectional ceiling antenna 300 is fixed on the test turntable 200 through the turntable interface using the test fixture 100, and the rotation of the test turntable 200 drives the omnidirectional ceiling antenna 300 to rotate in the horizontal direction. Rotate to an angle to test the induction field of a vertical closed surface. In this way, continuous testing can test the induction fields of multiple vertical closed surfaces. Through subsequent calculation and processing, the three-dimensional spatial directional pattern of the omnidirectional ceiling antenna 300 can be calculated.

[0039] During the test, the position and fixed posture of the omnidirectional ceiling antenna 300 on the turntable have a great influence on the test results. In order to ensure the accuracy and precision of the test, it is necessary to place the phase center of the omnidirectional ceiling antenna 300 under test at the center of the circle where the test probe 500 is distributed, and at the same time, it is necessary to place the phase center of the omnidirectional ceiling antenna 300 under test on the rotation axis of the test turntable 200. Therefore, when fixing it, the antenna test fixture 100 is fixed on the test turntable 200, and the axis of the antenna test fixture 100 is made to be colinear with the axis around which the test turntable 200 rotates, so as to ensure that the omnidirectional ceiling antenna 300 can rotate around the axis of the test turntable 200 when it is fixed on the antenna test fixture 100. In addition, the antenna test fixture 100 provided in the embodiment of the present application is a test fixture 100 with adjustable length. By adjusting the length of the antenna test fixture 100, the omnidirectional ceiling antenna 300 can be located at the phase center to ensure the accuracy of the test results.

[0040] refer to Figure 3 As shown, Figure 3 The exploded schematic diagram of the antenna test fixture 100 provided in the embodiment of the present application is shown. The main structure of the antenna test fixture 100 provided in the embodiment of the present application includes a support column 110, a test frame 120 and an adapter plate 130. Among them, the support column 110 and the test frame 120 are column structures, and the two are fixedly connected and serve as the antenna test fixture 100 to support the antenna to be tested (omnidirectional ceiling antenna 300) along the axis (axis of the test turntable 200). The adapter plate 130 is fixed on the test frame 120 and is used to cooperate with the antenna to be tested to fix the antenna to be tested.

[0041] In the specific setting, the support column 110 is fixedly connected to the test frame 120, and the support column 110 and the test frame 120 are coaxial, so that the formed antenna test fixture 100 has an axis, and when cooperating with the test turntable 200, the support column 110 is fixed on the test turntable 200, and the axis of the support column 110 is colinear with the axis around which the test turntable 200 rotates, so that when the test turntable 200 rotates, the antenna test fixture 100 can rotate around the axis of the test turntable 200. In addition, the adapter plate 130 is detachably fixed to the test frame 120, and the adapter plate 130 is coaxially arranged with the test frame 120 to ensure that the antenna to be tested can be aligned with the antenna test fixture 100 axis when the antenna to be tested is fixed.

[0042] When the adapter plate 130 is matched with the antenna to be tested, the adapter plate 130 has a mounting hole at its center, and the stud of the antenna to be tested can pass through the mounting hole and be locked by bolts, so that the antenna to be tested is locked on the adapter plate 130. It should be understood that the mounting hole of the adapter plate 130 is located on the axis of the test frame 120 to ensure that the antenna to be tested is coaxial with the antenna test fixture 100 when the antenna to be tested is fixed on the adapter plate 130. Therefore, when the test turntable 200 rotates, the antenna to be tested can rotate around the axis of the test turntable 200.

[0043] In addition, when testing antennas of different models, the sizes of the bolts are different. Therefore, in the embodiment of the present application, the adapter plate 130 is detachably fixed to the test frame 120. When it is necessary to detect antennas of different models, the adapter plate 130 corresponding to the antennas of the different models can be fixed to the test frame 120 without replacing the entire antenna test fixture 100, thereby improving the adaptability of the antenna test fixture 100.

[0044] The test frame 120 provided in the embodiment of the present application is a test frame 120 with adjustable length, and the length direction of the test frame 120 is the axial direction of the test frame 120. After the antenna to be tested is fixed on the adapter plate 130, the length position of the support for the antenna to be tested can be adjusted by adjusting the length of the test frame 120, so that the antenna to be tested is located at the phase center, thereby ensuring the test effect.

[0045] In addition, when the antenna test fixture 100 is set in the present application, the length of the support column 110 is greater than the length of the test frame 120 along the axial direction. That is, in terms of the overall length of the antenna test fixture 100, the length of the support column 110 accounts for a larger part, while the length of the adjustable test frame 120 accounts for a smaller part. Therefore, the antenna test fixture 100 provided in the embodiment of the present application is mostly a fixed structure, while the adjustable part accounts for a smaller proportion, so that the structure of the antenna test fixture 100 is relatively stable, and when adjusting, since the test frame 120 itself is small in size and relatively light in weight, it is also convenient to adjust.

[0046] It can be seen from the above description that the antenna test fixture 100 provided in the embodiment of the present application uses a support column 110 and a test frame 120 to support and fix the antenna to be tested, and the support column 110, the test frame 120 and the adapter plate 130 are coaxially arranged to support the antenna to be tested to rotate around the same axis during the test. In addition, the test frame 120 uses a test frame 120 with adjustable length, so that the antenna to be tested can be adjusted to be located at the phase center by adjusting the test bracket to improve the accuracy of the detection. At the same time, when setting the test frame 120 and the support frame, the length of the test frame 120 is shorter than the length of the support column 110, so that the adjustable part accounts for a smaller proportion in the length direction of the entire antenna test fixture 100, thereby ensuring the stability of the entire antenna test fixture 100 in the length direction and facilitating the adjustment of the length of the test frame 120.

[0047] For reference Figure 4 , Figure 4 The structural schematic diagram of the test stand 120 provided in the embodiment of the present application is shown. The test stand 120 provided in the embodiment of the present application mainly includes two connecting flanges and a telescopic column 122. For the convenience of description, the two connecting flanges are named as the first connecting flange 121 and the second connecting flange 123, respectively. The first connecting flange 121 and the second connecting flange 123 are arranged at intervals along the axis direction of the test stand 120, and the telescopic column 122 is located between the first connecting flange 121 and the second connecting flange 123 and is used to connect the first connecting flange 121 and the second connecting flange 123. Specifically, the number of telescopic columns 122 is multiple, and the multiple telescopic columns 122 are arranged at intervals around the axis of the test stand 120. Among them, the two ends of each telescopic column 122 are connected to the first connecting flange 121 and the second connecting flange 123 in a one-to-one correspondence, thereby forming a column structure. When adjusting the test stand 120, the length of the test stand 120 can be adjusted by adjusting the length of the telescopic column 122, so as to facilitate the adjustment of the test stand 120. The number of the telescopic columns 122 can be different, such as three, four, five, etc. When setting, it can be adjusted according to actual needs. Figure 4As shown in FIG. 1 , there are four telescopic columns 122, and the four telescopic columns 122 are evenly distributed on the first connection flange 121. The stability of the support for the second connection flange 123 is ensured by the four support columns 110, while also avoiding the cumbersomeness of adjusting the length of the test frame 120 due to the use of too many telescopic columns 122.

[0048] The first connection flange 121 and the second connection flange 123 may be annular structures, thereby further reducing the weight of the test stand 120. During the specific connection, the first connection flange 121, the second connection flange 123 and the telescopic column 122 are sequentially bonded together by adhesive.

[0049] When matched with other components, the first connection flange 121 is detachably fixedly connected to the support column 110, and the second connection flange 123 is detachably fixedly connected to the adapter plate 130. Exemplarily, the first connection flange 121 is fixedly connected to the support column 110 by a threaded connection (bolt or screw), and the second connection flange 123 is also fixedly connected to the adapter plate 130 by a threaded connection. When the components are connected in a detachable fixed connection, they can be easily replaced or disassembled during transportation.

[0050] In an optional solution, a plurality of arc-shaped waist holes 1211 are provided on the first connection flange 121 provided in the embodiment of the present application, and the centers of the plurality of arc-shaped waist holes 1211 are located at the axis of the test frame 120, and the plurality of arc-shaped waist holes 1211 are arranged at intervals with the telescopic columns 122, that is, one arc-shaped waist hole 1211 is arranged between two telescopic columns 122. In addition, a threaded connector is provided through each arc-shaped waist hole 1211; the first connection flange 121 is detachably fixedly connected to the support column 110 through the threaded connector. Thus, the threaded connector is provided through the arc-shaped waist hole 1211, which facilitates the equipment.

[0051] The telescopic column 122 can adopt different telescopic structures. For example, the telescopic column 122 includes a support tube 1222 and a telescopic rod 1221 which is sleeved in the support tube 1222 and can move relative to the telescopic rod 1221, and also includes a locking member for locking the telescopic rod 1221. During specific adjustment, the telescopic rod 1221 can be telescoped in the support tube 1222 to adjust the overall length of the telescopic column 122. When the telescopic column 122 is adjusted in place, the telescopic column 122 can be locked by locking, so that the telescopic column 122 is maintained at the adjusted length. When the telescopic column 122 cooperates with the first connecting flange 121 and the second connecting flange 123, the support tube 1222 is fixedly connected to the first connecting flange 121, and the telescopic rod 1221 is fixedly connected to the second connecting flange 123. When the telescopic rod 1221 is extended and retracted in the support tube 1222 , the second connection flange 123 can be driven to move relative to the first connection flange 121 , thereby adjusting the distance between the first connection flange 121 and the second connection flange 123 , that is, adjusting the length of the test frame 120 .

[0052] The locking member provided in the embodiment of the present application can be locked in different ways when locking the telescopic rod 1221. For example, in one way, Figure 4 and Figure 5 As shown, Figure 5 Shows Figure 4 In the partial enlarged schematic diagram at A in the middle, a slide groove 1223 is provided on the support tube 1222, and the length direction of the slide groove 1223 is along the length direction of the support tube 1222. The locking member is a locking bolt 1224 threadedly connected to the telescopic rod 1221. The threaded rod of the locking bolt 1224 is located in the slide groove 1223, and the nut of the locking bolt is exposed outside the support tube 1222. When locking the telescopic rod 1221, by tightening the locking bolt 1224, the nut of the locking bolt 1224 is pressed against the support tube 1222. When adjusting the telescopic column 122, the locking bolt 1224 can be loosened to release the locking of the telescopic rod 1221.

[0053] In another embodiment, the locking member is also a locking bolt, but the locking bolt is threadedly connected to the support tube 1222 and can be pressed against the telescopic rod 1221. When locking the telescopic rod 1221, the locking bolt can be tightened, and the locking bolt is pressed against the telescopic rod 1221, so as to lock and fix the telescopic rod 1221. When the telescopic column 122 needs to be adjusted, the locking bolt can be loosened, and the telescopic rod 1221 can slide in the support tube 1222. When the telescopic rod 1221 slides into place, the locking bolt can be tightened to lock the telescopic rod 1221.

[0054] In an practicable solution, in order to ensure that the second connection flange 123 and the first connection flange 121 remain parallel after the adjustment of the multiple telescopic columns 122, that is, to ensure that the surface of the adapter plate 130 supporting the antenna to be tested is perpendicular to the axis of the test frame 120, a scale line (not shown in the figure) is set on the telescopic rod 1221. A scale line is set on each telescopic rod 1221, so that the adjustment distance can be guaranteed to be consistent according to the scale value on the scale line, thereby ensuring that the adjusted test frame 120 is only adjusted in the length direction, and the adjustment of the support surface of the antenna to be tested is only reflected in the translation along the axis direction of the test frame 120.

[0055] refer to Figure 6 , Figure 6 The structural schematic diagram of the support column provided by the embodiment of the present application is shown. The support column 110 provided by the embodiment of the present application includes two connecting flanges and a support rod 113. For the convenience of description, the two connecting flanges are named as the third connecting flange 112 and the fourth connecting flange 111, respectively. The third connecting flange 112 and the fourth connecting flange 111 are arranged at intervals along the axis direction of the support column 110. The support column 110 is located between the third connecting flange 112 and the fourth connecting flange 111 and is used to connect the third connecting flange 112 and the fourth connecting flange 111. Specifically, the number of the support columns 110 is multiple, and the multiple support columns 110 are arranged at intervals around the axis of the support column 110. Among them, the two ends of each support column 110 are connected to the third connecting flange 112 and the fourth connecting flange 111 in a one-to-one correspondence, thereby forming a column structure.

[0056] The third connecting flange 112 and the fourth connecting flange 111 may adopt an annular structure, thereby further reducing the weight of the supporting column 110 .

[0057] The number of the support rods 113 can be different, such as three, four, five, etc. When setting, it can be adjusted according to actual needs. Figure 5 As shown in FIG. 1 , the number of the support rods 113 is four, and the four support rods 113 are evenly distributed on the third connection flange 112 . The stability of the support to the fourth connection flange 111 is ensured by the four support rods 113 .

[0058] When connected with other components, the third connecting flange 112 is detachably fixedly connected to the first connecting flange 121 , and the fourth connecting flange 111 is detachably fixedly connected to the test turntable 200 .

[0059] In an optional solution, the support column 110 further includes at least one support plate 114 located between the third connection flange 112 and the fourth connection flange 111, and the support plate 114 is fixedly connected to the support rod 113. When there are multiple support plates 114, the multiple support plates 114 are arranged at intervals along the axial direction of the support column 110, so that when the multiple support plates 114 are respectively connected to the multiple support rods 113, the stability of the support rods 113 in the axial direction is improved.

[0060] During the specific connection, the third connection flange 112, the fourth connection flange 111, and the support column 110 are sequentially bonded together by adhesive, and a plurality of support plates 114 distributed in the middle are also bonded together by adhesive.

[0061] refer to Figure 7 As shown, Figure 7 The adapter plate 130 is a disc-shaped plate with a plurality of evenly distributed fixing holes. The fixing holes are the same in number and geometric distribution size as the threaded holes of the fourth connecting flange of the test frame 120. A center hole 131 is also provided at the center of the adapter plate 130. The center hole 131 is connected to the test frame 120. Figure 2 The mounting studs 1 of the omnidirectional ceiling antenna 300 shown in FIG. The mounting studs 1 of different types of omnidirectional ceiling antennas 300 may have various specifications, and the adapter plates 130 with center holes 131 of different diameters may be provided accordingly.

[0062] The test antenna fixture provided in the embodiment of the present application can be made of a material with a low dielectric constant, that is, the support column 110, the test frame 120 and the adapter plate 130 are all made of a material with a low dielectric constant, such as a plastic with a low dielectric constant. This reduces the signal reflection of the test fixture 100, reduces the impact on the test results, and improves the accuracy of the test.

[0063] It can be seen from the above description that the test frame 120 in the antenna test fixture 100 provided in the embodiment of the present application can be adjusted and locked within a certain range, and the distance can be accurately controlled by the scale reading on the telescopic column 122, thereby ensuring that the phase center of the omnidirectional ceiling antenna 300 after clamping is located at the center of the circle where the test probe 500 is located. The above technical means ensure that the phase center of the omnidirectional ceiling antenna 300 is accurately positioned after clamping, and the operation is simple and the control is reliable. In addition, the antenna test fixture 100 has a plurality of adapter plates 130 with different center holes 131, which can be matched according to the diameter of the mounting nut 2 of the omnidirectional ceiling antenna 300, and has universality. At the same time, the antenna test fixture 100 is made entirely of plastic with a low dielectric constant, which reduces the signal reflection of the test fixture 100 itself and reduces the impact on the test results.

[0064] It should be understood that the antenna test fixture 100 provided in the embodiment of the present application is not only suitable for the omnidirectional ceiling antenna 300, but can also be used to support the wall-mounted antenna. When supporting the wall-mounted antenna, the azimuth angle of the supporting wall-mounted antenna can be adjusted through the arc waist hole 1211 on the first connecting flange 121 to facilitate testing.

[0065] The embodiment of the present application further provides an antenna testing device, which includes a darkroom 400, a testing platform arranged in the darkroom 400, and any one of the above-mentioned antenna testing tools 100; wherein,

[0066] The support column 110 is detachably fixedly connected to the test platform.

[0067] In the above technical solution, the support column 110 and the test frame 120 are used to support and fix the antenna to be tested. The support column 110, the test frame 120 and the adapter plate 130 are coaxially arranged to support the antenna to be tested to rotate around the same axis during the test. The test frame 120 adopts a test frame 120 with adjustable length, so that the antenna to be tested can be adjusted to be located at the phase center by adjusting the test bracket to improve the accuracy of the detection. In addition, the length of the test frame 120 is shorter than the length of the support column 110, so that the adjustable part accounts for a smaller proportion in the length direction of the entire antenna test fixture 100, thereby ensuring the stability of the entire antenna test fixture 100 in the length direction.

[0068] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this disclosure.

[0069] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An antenna testing tool, characterized in that: It includes a support column and a test frame coaxially arranged with the support column; wherein, The test frame is a test frame with adjustable length, and along the axial direction, the length of the support column is greater than the length of the test frame; The antenna testing tool also includes an adapter plate detachably connected to the test frame, the adapter plate is coaxially arranged with the test frame, and the adapter plate is used to fix the antenna to be tested.

2. The antenna testing tool according to claim 1, characterized in that: The test frame comprises a first connecting flange and a second connecting flange arranged at intervals along the axis direction of the test frame; and a telescopic column located between the first connecting flange and the second connecting flange; the number of the telescopic columns is multiple, and the multiple telescopic columns are arranged at intervals around the axis of the test frame; the two ends of each telescopic column are respectively connected to the first connecting flange and the second connecting flange in a one-to-one correspondence; The first connecting flange is detachably fixedly connected to the supporting column; The adapter plate is detachably connected to the second connecting flange.

3. The antenna testing tool according to claim 2, characterized in that: The telescopic column comprises a support tube and a telescopic rod which is sleeved in the support tube and can move relative to the telescopic rod, and also comprises a locking piece for locking the telescopic rod.

4. The antenna testing tool according to claim 3, characterized in that: The telescopic rod is provided with scale lines.

5. The antenna testing tool according to claim 3, characterized in that: The support tube is provided with a slide groove, and the locking member is a locking bolt threadedly connected to the telescopic rod; wherein, The threaded rod of the locking bolt is located in the slide groove, and the nut of the locking bolt is exposed outside the support tube; or, The locking member is a locking bolt, which is threadedly connected to the support pipe and can be tightened against the telescopic rod.

6. The antenna testing tool according to any one of claims 2 to 5, characterized in that: The number of the telescopic columns is four, and the four telescopic columns are evenly distributed on the first connecting flange.

7. The antenna testing tool according to claim 6, characterized in that: The first connecting flange is provided with a plurality of arc-shaped waist holes, and the centers of the plurality of arc-shaped waist holes are located on the axis of the test frame; It also includes a threaded connector that passes through each arc-shaped waist hole; the first connecting flange is detachably fixedly connected to the support column through the threaded connector.

8. The antenna testing tool according to claim 7, characterized in that: The support column comprises a third connecting flange and a fourth connecting flange which are arranged at intervals along the axial direction of the support column, and a supporting rod which is arranged between the third connecting flange and the fourth connecting flange and is used to connect the third connecting flange and the fourth connecting flange; The third connecting flange is detachably fixedly connected to the first connecting flange.

9. The antenna testing tool according to claim 8, characterized in that: The support column further includes at least one support plate located between the third connection flange and the fourth connection flange, and the support plate is fixedly connected to the support rod.

10. An antenna testing device, characterized in that: It comprises a darkroom, a test platform arranged in the darkroom, and the antenna test tooling according to any one of claims 1 to 9; wherein, The support column is detachably fixedly connected to the test platform.

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