Antenna test method and antenna test equipment

Abstract

The invention relates to the field of antenna testing, and discloses antenna testing equipment which comprises a housing and a testing mechanism arranged in the housing, the testing mechanism comprises a clamping fixture, four signal receiving elements and a testing component, the four signal receiving elements are located at the four right-angle positions of an inner cavity of the housing respectively, the housing is provided with a base, and the testing component is arranged on the base. The testing component comprises a cantilever support connected with the base, a rotating support is rotationally installed on the cantilever support, a second rotating shaft formed at the rotating installation position is in power connection with a second motor arranged on the cantilever support through a power transmission piece, the second rotating shaft is horizontally arranged, and a stand column support is arranged on the upper surface of the rotating support. The stand column support is vertically arranged, and two testing assemblies are arranged on the stand column support. According to the scheme, the signal transmission test and the kink test of the WiFi antenna can be realized through the test mechanism, and the kink test comprises the maximum rotation frequency test and the strength test of the antenna body of the WiFi antenna.

Description

Technical Field

[0001] The present invention relates to the field of antennas, in particular to the field of antenna testing, and in particular to an antenna testing method and antenna testing equipment. Background Art

[0002] With the continuous development of science and technology, antennas are used more and more in life, such as router WiFi antennas, vehicle-mounted antennas, 5G base station antennas, etc. After the antennas are produced, they need to be sampled and tested. Taking WiFi antennas as an example, during the test, not only the signal transmission test but also the kink test and the combination of the two are required.

[0003] After searching, some prior arts were found, which are introduced one by one: First, the Chinese utility model patent with the authorization announcement number CN204575471U discloses a WIFI router antenna kink tester, which can swing the WiFi antenna 90 degrees or 180 degrees to achieve the kink test of the WiFi antenna. However, the WiFi antenna test includes signal transmission test, kink test and a combination of the two. The test type is relatively single and needs to be improved. Secondly, the Chinese invention patent application with application publication number CN117368587A fixes the antenna by a fixing mechanism, moves the receiving probe relative to the antenna by a displacement mechanism, collects the RF signal radiated by the antenna at each test position, and performs performance tests on the antenna in multiple directions. It can only realize the signal transmission test of the antenna, and also has the problem of a relatively single test type, which needs to be improved. In addition, when performing the signal transmission test, in order to achieve the purpose of performing performance tests on the antenna from different directions, the receiving probe needs to rotate 360 ​​degrees around the antenna, and the test efficiency is low, which needs to be improved.

[0004] Based on the above, the present invention proposes an antenna testing method and an antenna testing device. Summary of the invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides an antenna testing method and an antenna testing device.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0007] An antenna testing device comprises a housing and a testing mechanism arranged in the housing, the testing mechanism comprising a fixture, a signal receiving element and a testing member, the fixture is used to clamp a WiFi antenna, four signal receiving elements are arranged and are respectively located at four right angles of an inner cavity of the housing, and the testing member cooperates with the four signal receiving elements to implement testing of the WiFi antenna; The cover shell is provided with a base, and the test component includes a cantilever bracket connected to the base, a rotating bracket is rotatably installed on the cantilever bracket, and a second rotating shaft formed at the rotating installation position is poweredly connected to a second motor arranged on the cantilever bracket through a power transmission member, and the second rotating shaft is horizontally arranged, and a column bracket is provided on the upper surface of the rotating bracket. Initially, the column bracket is vertically arranged, and two test components are provided on the column bracket.

[0008] As a further improvement and optimization of the present invention, the power transmission component includes a worm gear.

[0009] As a further improvement and optimization of the present invention, the clamp includes a rotating seat rotatably mounted on the base, and a first rotating shaft formed at the rotating mounting position is dynamically connected to a first motor arranged on the base, the first rotating shaft is vertically arranged, and an upper bracket is detachably provided on the upper end of the rotating seat, and a test circuit for connecting to a WiFi antenna is also provided on the rotating seat.

[0010] As a further improvement and optimization of the present invention, the test assembly includes a connecting slide slidably arranged on the column bracket, the sliding direction of the connecting slide is parallel to the extension direction of the column bracket, a connecting sleeve column is arranged on the side of the connecting slide facing the clamp, the extension direction of the connecting sleeve column is parallel to the axial centerline direction of the second rotating shaft, a sliding column is provided in the sliding sleeve of the connecting sleeve column, the guiding direction of the sliding column is parallel to the extension direction of the connecting sleeve column, one end of the sliding column extends out of the connecting sleeve column and is provided with a test head through a pressure sensor.

[0011] As a further improvement and optimization of the present invention, a first linear module for driving the connecting slide to move is arranged on the column bracket, and a second linear module for driving the slide to move is arranged in the connecting sleeve column.

[0012] As a further improvement and optimization of the present invention, the connection sleeves in the two test assemblies are distributed up and down, the test head on the upper connection sleeve is named an upper test head, and the test head on the lower connection sleeve is named a lower test head; The upper test head is in the shape of a ring and its axis is parallel to the extension direction of the column bracket. The lower test head includes a U-shaped rod. The opening of the U-shaped rod faces the fixture and the center line of the inner area of ​​the U-shaped rod is parallel to the extension direction of the column bracket. A convex pin rod also extends vertically from the bottom of the U-shaped rod.

[0013] An antenna testing method for an antenna testing device: Step 1: Install the WiFi antenna to be tested on the fixture; Step 2: The upper test head is away from the WiFi antenna, and the antenna body of the WiFi antenna is located in the U-shaped rod of the lower test head; The first motor drives the first rotating shaft to rotate, and the first rotating shaft rotates with the rotating base, so that the axis a of the WiFi antenna is parallel to the second rotating shaft; Step 3: The second motor drives the second rotating shaft to rotate, and the second rotating shaft rotates with the rotating bracket. During the rotation process, the U-shaped rod drives the antenna body to rotate ninety degrees around the axis a. While the antenna body rotates, the signal is transmitted outward, and the signal transmission test of the WiFi antenna is realized through the cooperation of the signal receiving element; Step 4: After the antenna body rotates 90 degrees around axis a, the lower test head leaves the antenna body and makes the protruding pin contact the antenna body; Step 5: The first motor drives the first rotating shaft to rotate, so that the antenna body rotates 180 degrees around the axis b. While the antenna body rotates, it transmits signals outward, and through the cooperation of the signal receiving element, the signal transmission test of the WiFi antenna is realized.

[0014] An antenna testing method for an antenna testing device: Step 1: The rotating base is driven to rotate by the first motor so that the axis a of the WiFi antenna is arranged at an angle to the second rotating axis; Step 2: Move the antenna body through the U-shaped rod. Since the axis a and the second rotating axis are arranged at an angle at this time, the antenna body cannot rotate. The pressure applied to the antenna body can be obtained through the pressure sensor to test the connection strength between the axis a and the axis b. Step 3: Put the upper test head on the upper end of the antenna body, and the antenna body is located inside the U-shaped rod; Step 4: The lower test head moves away from the connecting sleeve to test the strength of the antenna body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This solution can achieve signal transmission test and kink test of WiFi antenna through the testing organization. The kink test includes the maximum rotation number test and strength test of the antenna body of the WiFi antenna. Specifically: 1. During the signal transmission test, since there are four signal receiving elements, the antenna body only needs to rotate 90 degrees around axis a. During this process, the angles between the two signal receiving elements on the side of the antenna body rotating and the antenna body become smaller and smaller, and the angles between the remaining two signal receiving elements and the antenna body become larger and larger. Therefore, in this solution, the antenna body rotates 90 degrees around axis a to achieve the effect of rotating the antenna body 180 degrees around axis a in the prior art; Similarly, the antenna body only needs to rotate 180 degrees around axis b to achieve the effect of rotating the antenna body 360 degrees around axis b in the prior art; In summary, this solution can test the signal transmission performance of the WiFi antenna, and during the test, it can simulate the situation when the antenna body of the WiFi antenna rotates around axis a or axis b respectively, and the antenna body only needs to rotate ninety degrees or one hundred and eighty degrees to achieve the effect of the antenna body rotating one hundred and eighty degrees around axis a or three hundred and sixty degrees around axis b in the prior art, thereby doubling the test efficiency.

[0016] Second, the antenna body is moved by the U-shaped rod. Since the axis a and the second rotating shaft are arranged at an angle at this time, the antenna body cannot rotate. The pressure applied to the antenna body can be obtained by the pressure sensor to test the connection strength between the axis a and the axis b. During the test, the angle between the axis a and the second rotating shaft can be adjusted to adjust the direction of the force applied to the antenna body on the axis a and the axis b, thereby improving the comprehensiveness of the test; Similarly, the upper test head is covered on the upper end of the antenna body, so that the antenna body is located in the U-shaped rod, and the lower test head moves away from the connecting sleeve to test the strength of the antenna body. During the test, the height of the lower test head can be adjusted through the first linear module, so that the strength of each position of the antenna body can be tested, and the test is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of an existing WiFi antenna; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 Schematic diagram of the test structure Figure 1 ; Figure 4 Schematic diagram of the test structure Figure 2 ; Figure 5 Schematic diagram of the test structure Figure 3 ; Figure 6 is a schematic diagram of the fixture and the test component; Figure 7 It is a partial cross-sectional view of the fixture; Figure 8 is a schematic diagram of the test component; Fig. 9 It is a schematic diagram of the structure of the test component; Fig.10 It is a partial schematic diagram of the test component; The reference numerals in the accompanying drawings are: 100, cover; 101, fixture; 1011, first motor; 1012, rotating seat; 1013, upper bracket; 1014, test circuit; 102, signal receiving element; 200, test component; 201, cantilever bracket; 202, second motor; 203, power transmission member; 204, rotating bracket; 205, column bracket; 206, first linear module; 207, connecting slide; 208, connecting sleeve column; 209, slide column; 210, second linear module; 211, pressure sensor; 212, upper test head; 213, lower test head; 2131, U-shaped rod; 2132, convex pin rod. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] This plan is attached Figure 1 It is a cross-sectional view of an existing WiFi antenna. The antenna body a can rotate around the axis b, and the antenna body a and the axis b can rotate around the axis c.

[0020] Reference Figure 1-Figure 10 , an antenna testing device includes a cover 100 and a testing mechanism arranged in the cover 100.

[0021] The testing mechanism includes a fixture 101, a signal receiving element 102 and a testing component 200. The fixture 101 is used to clamp the WiFi antenna. Four signal receiving elements 102 are provided and are respectively located at four right angles of the inner cavity of the cover 100. The testing component 200 cooperates with the four signal receiving elements 102 to realize the test of the WiFi antenna.

[0022] Fixtures 101: Reference Figure 6 and Figure 7The fixture 101 includes a base, a rotating base 1012 is rotatably mounted on the base, and a first rotating shaft formed at the rotating mounting position is dynamically connected to the first motor 1011, the first rotating shaft is vertically arranged, and the first motor 1011 is arranged on the base, and an upper bracket 1013 is detachably arranged on the upper end of the rotating base 1012, such as a bolt installation method or a clamping method, etc., which can be realized by the existing technology and will not be repeated. The existing WiFi antenna is generally assembled on the router by a nut or a clamping method. In this solution, the upper bracket 1013 is equivalent to a structure on the router for assembling and connecting with the WiFi antenna. Referring to the assembly method of the existing WiFi antenna, the WiFi antenna can be assembled on the upper bracket 1013. It should be noted that after the WiFi antenna is assembled on the upper bracket 1013, it is necessary to complete the connection between the WiFi antenna and the test circuit 1014, and then the upper bracket 1013 can be mounted on the upper end of the rotating base 1012.

[0023] The signal receiving element 102 can be realized by the existing technology and can receive the signal sent by the WiFi antenna. Therefore, the signal receiving element 102 cooperates with the WiFi antenna to test the signal transmission performance of the WiFi antenna.

[0024] Test component 200: Reference Figure 6 and Figure 8-Figure 10 The test component 200 includes a cantilever bracket 201 connected to the base, a rotating bracket 204 is rotatably installed on the cantilever bracket 201, and a second rotating shaft formed at the rotating installation is connected to the second motor 202 through a power transmission member 203. The second rotating shaft is arranged horizontally, and the second motor 202 is arranged on the cantilever bracket 201. The power transmission member 203 can be a bevel gear structure or a worm gear structure. The attached figure of this scheme shows a bevel gear, preferably a worm gear.

[0025] A column support 205 is provided on the upper surface of the rotating support 204. Initially, the column support 205 is arranged vertically.

[0026] A test assembly is arranged on the column support 205, and two test assemblies are arranged.

[0027] The test assembly includes a connecting slide 207 slidably disposed on a column bracket 205 , wherein the sliding direction of the connecting slide 207 is parallel to the extending direction of the column bracket 205 , and a first linear module 206 for driving the connecting slide 207 to move is disposed on the column bracket 205 .

[0028] A connecting sleeve 208 is provided on the side of the connecting slide 207 facing the clamp 101, and the extension direction of the connecting sleeve 208 is parallel to the axial centerline direction of the second rotating shaft. A sliding column 209 is provided in the sliding sleeve of the connecting sleeve 208, and the guiding direction of the sliding column 209 is parallel to the extension direction of the connecting sleeve 208. A second linear module 210 for driving the sliding column 209 to move is provided in the connecting sleeve 208.

[0029] One end of the sliding column 209 extends out of the connecting sleeve column 208 and is provided with a test head through a pressure sensor 211 .

[0030] The connecting sleeves 208 in the two test assemblies are distributed up and down. The test head on the upper connecting sleeve 208 is named as an upper test head 212, and the test head on the lower connecting sleeve 208 is named as a lower test head 213.

[0031] The upper test head 212 is in a ring shape and the axis of the upper test head 212 is parallel to the extension direction of the column support 205 .

[0032] The lower test head 213 includes a U-shaped rod 2131 , the opening of which faces the fixture 101 and the center line of the inner area of ​​the U-shaped rod 2131 is parallel to the extension direction of the column bracket 205 . A protruding pin rod 2132 is vertically extended from the bottom of the U-shaped rod 2131 .

[0033] An antenna testing method for an antenna testing device: 1. Signal transmission performance test; Step 1: Install the WiFi antenna to be tested on the fixture 101; Step 2: by cooperating with the first linear module 206 and the second linear module 210 , the upper test head 212 is moved away from the WiFi antenna, and the antenna body of the WiFi antenna is located in the U-shaped rod 2131 of the lower test head 213 ; The first motor 1011 drives the first rotating shaft to rotate, and the first rotating shaft rotates with the rotating base 1012, so that the axis a of the WiFi antenna is parallel to the second rotating shaft; Step 3: The second motor 202 drives the second rotating shaft to rotate, and the second rotating shaft rotates with the rotating bracket 204. During the rotation, the U-shaped rod 2131 drives the antenna body to rotate around the axis a. While the antenna body rotates, it transmits signals outward, and through the cooperation of the signal receiving element 102, the signal transmission test of the WiFi antenna is realized; It should be noted that, since there are four signal receiving elements 102, the antenna body only needs to be rotated 90 degrees toward one side. During this process, the angle between the two signal receiving elements 102 located on the side toward which the antenna body is rotated and the antenna body becomes smaller and smaller, and the angle between the remaining two signal receiving elements 102 and the antenna body becomes larger and larger. Therefore, in this solution, the antenna body is rotated 90 degrees to achieve the effect of rotating the antenna body 180 degrees around the axis a in the prior art. Step 4: After the antenna body rotates 90 degrees around the axis a, the second linear module 210 pulls the lower test head 213 away from the antenna body and completes the reset. Then, the second linear module 210 cooperates with the first linear module 206 to make the protruding pin rod 2132 of the lower test head 213 contact the antenna body. Step 5: The first motor 1011 drives the first rotating shaft to rotate, so that the antenna body rotates around the axis b. Similarly, since there are four signal receiving elements 102 and they are respectively located at four right angles of the inner cavity of the housing 100, the antenna body only needs to rotate 180 degrees around the axis b to achieve the effect of rotating the antenna body around the axis b 360 degrees in the prior art. It can be seen from steps one to five that this solution can realize the test of the signal transmission performance of the WiFi antenna, and during the test, it can simulate the situation when the antenna body of the WiFi antenna rotates around axis a or axis b respectively, and the antenna body only needs to rotate ninety degrees or one hundred and eighty degrees to achieve the effect of the antenna body rotating one hundred and eighty degrees around axis a or three hundred and sixty degrees around axis b in the prior art, and the test efficiency is doubled.

[0034] It should be noted that in real life, when the router is actually used, the antenna body will only rotate 180 degrees around axis a or 360 degrees around axis b at most. Therefore, it is only necessary to simulate the signal transmission in these two cases. It should be noted that the above test method can also test the maximum number of rotations of axis a and axis b; (ii) Kink test: Step 6: The first motor 1011 drives the rotating seat 1012 to rotate, so that the axis a of the WiFi antenna and the second rotating axis are arranged at an angle; Step 7: Referring to Step 2 and Step 3, the antenna body is moved by the U-shaped rod 2131. Since the axis a and the second rotating axis are arranged at an angle at this time, the antenna body cannot rotate. The pressure applied to the antenna body can be calculated by the pressure sensor 211, and the connection strength between the axis a and the axis b is tested. It should be noted that the angle between axis a and the second rotating axis can be adjusted to adjust the direction of the force applied to the antenna body at axis a and axis b, thereby improving the comprehensiveness of the test; Step 8: Through the cooperation of the first linear module 206 and the second linear module 210, the upper test head 212 can be sleeved on the upper end of the antenna body, so that the antenna body is located in the U-shaped rod 2131; Step nine: The second linear module 210 drives the lower test head 213 to move away from the connecting sleeve 208 to test the strength of the antenna body; It should be noted that the height of the lower test head 213 can be adjusted through the first linear module 206, so as to perform strength tests on various positions of the antenna body, making the test more comprehensive.

[0035] In this solution, the first linear module 206 and the second linear module 210 can adopt the existing electric telescopic rod technology or the existing screw linear motion technology, etc., which will not be described in detail.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An antenna testing device, comprising a housing (100) and a testing mechanism arranged in the housing (100), characterized in that: The testing mechanism comprises a fixture (101), a signal receiving element (102) and a testing component (200); the fixture (101) is used to clamp the WiFi antenna; four signal receiving elements (102) are provided and are respectively located at four right angles of the inner cavity of the housing (100); and the testing component (200) cooperates with the four signal receiving elements (102) to implement testing of the WiFi antenna; The cover (100) is provided with a base, and the test component (200) comprises a cantilever bracket (201) connected to the base, a rotating bracket (204) is rotatably mounted on the cantilever bracket (201), and a second rotating shaft formed at the rotating mounting position is connected to a second motor (202) arranged on the cantilever bracket (201) via a power transmission member (203), the second rotating shaft is arranged horizontally, and a column bracket (205) is arranged on the upper surface of the rotating bracket (204), and initially, the column bracket (205) is arranged vertically, and two test assemblies are arranged on the column bracket (205).

2. The antenna testing device according to claim 1, characterized in that: The power transmission member (203) comprises a worm gear.

3. The antenna testing device according to claim 1, characterized in that: The fixture (101) comprises a rotating seat (1012) rotatably mounted on a base, wherein a first rotating shaft formed at the rotating mounting position forms a power connection with a first motor (1011) arranged on the base, the first rotating shaft is arranged vertically, an upper bracket (1013) is detachably provided at the upper end of the rotating seat (1012), and a test circuit (1014) for connecting to a WiFi antenna is also provided on the rotating seat (1012).

4. The antenna testing device according to claim 3, characterized in that: The test assembly comprises a connecting slide (207) slidably arranged on a column support (205), the sliding direction of the connecting slide (207) being parallel to the extension direction of the column support (205), a connecting sleeve column (208) being arranged on one side of the connecting slide (207) facing the fixture (101), the extension direction of the connecting sleeve column (208) being parallel to the axial centerline direction of the second rotating shaft, a sliding column (209) being slidably sleeved inside the connecting sleeve column (208), the guiding direction of the sliding column (209) being parallel to the extension direction of the connecting sleeve column (208), one end of the sliding column (209) extending out of the connecting sleeve column (208) and being provided with a test head via a pressure sensor (211).

5. The antenna testing device according to claim 4, characterized in that: A first linear module (206) for driving the connecting slide (207) to move is arranged on the column bracket (205), and a second linear module (210) for driving the sliding column (209) to move is arranged in the connecting sleeve column (208).

6. The antenna testing device according to claim 4, characterized in that: The connecting sleeves (208) in the two test assemblies are arranged in an upper and lower arrangement, the test head on the upper connecting sleeve (208) is named an upper test head (212), and the test head on the lower connecting sleeve (208) is named a lower test head (213); The upper test head (212) is in the shape of a ring and the axis of the upper test head (212) is parallel to the extension direction of the column bracket (205). The lower test head (213) comprises a U-shaped rod (2131), the opening of the U-shaped rod (2131) faces the fixture (101) and the center line of the inner area of ​​the U-shaped rod (2131) is parallel to the extension direction of the column bracket (205). The bottom of the U-shaped rod (2131) is also vertically extended with a convex pin rod (2132).

7. The antenna testing method of the antenna testing device according to claim 6, characterized in that: The steps include: Step 1: Install the WiFi antenna to be tested on the fixture (101); Step 2: The upper test head (212) is away from the WiFi antenna, and the antenna body of the WiFi antenna is located inside the U-shaped rod (2131) of the lower test head (213); The first rotating shaft is driven to rotate by the first motor (1011), and the first rotating shaft rotates together with the rotating seat (1012), so that the axis a of the WiFi antenna is parallel to the second rotating shaft; Step 3: The second motor (202) drives the second rotating shaft to rotate, and the second rotating shaft rotates together with the rotating bracket (204). During the rotation process, the U-shaped rod (2131) drives the antenna body to rotate ninety degrees around the axis a. While the antenna body rotates, it transmits signals outward, and through the cooperation of the signal receiving element (102), a signal transmission test of the WiFi antenna is achieved; Step 4: After the antenna body rotates 90 degrees around axis a, the lower test head (213) leaves the antenna body and makes the protruding pin rod (2132) contact the antenna body; Step 5: The first motor (1011) is used to drive the first rotating shaft to rotate, thereby causing the antenna body to rotate 180 degrees around the axis b. While the antenna body rotates, it transmits signals outward, and through the cooperation of the signal receiving element (102), a signal transmission test of the WiFi antenna is achieved.

8. The antenna testing method of an antenna testing device according to claim 6, characterized in that: The steps include: Step 1: driving the rotating seat (1012) to rotate by means of the first motor (1011), so that the axis a of the WiFi antenna and the second rotating axis are arranged at an angle; Step 2: The antenna body is moved by using the U-shaped rod (2131). Since the axis a and the second rotating axis are arranged at an angle at this time, the antenna body cannot rotate. The pressure applied to the antenna body can be obtained by using the pressure sensor (211), and the connection strength between the axis a and the axis b is tested. Step 3: The upper test head (212) is sleeved on the upper end of the antenna body, and the antenna body is located inside the U-shaped rod (2131); Step 4: The lower test head (213) moves away from the connecting sleeve (208) to test the strength of the antenna body.

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