An antenna testing method and an antenna testing device

Abstract

The present invention relates to the field of antenna testing, and discloses an antenna testing device, which includes a housing and a testing mechanism arranged inside the housing. The testing mechanism includes a clamping fixture, a signal receiving element, and a testing member. Four signal receiving elements are provided and are respectively located at the four right angles of the inner cavity of the housing. The housing is provided with a base. The testing member 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 rotatable installation location is in power connection with a second motor arranged on the cantilever bracket through a power transmission member. The second rotating shaft is horizontally arranged. A column bracket is provided on the upper surface of the rotating bracket. Initially, the column bracket is vertically arranged, and two testing components are provided on the column bracket. Through the testing mechanism, the signal transmission test and kinking test of the WiFi antenna can be realized. The kinking test includes the maximum rotation times test and strength test of the antenna body of the WiFi antenna.

Description

Technical Field

[0001] The present invention relates to the field of antennas, specifically to the field of antenna testing, and particularly to an antenna testing method and an antenna testing device. Background Art

[0002] With the continuous development of technology, antennas are increasingly used in life. For example, router WiFi antennas, vehicle-mounted antennas, 5G base station antennas, etc. After the antennas are produced, sampling tests need to be carried out. Taking the WiFi antenna as an example, during the test, not only the signal transmission test needs to be carried out on it, but also the kink test needs to be carried out, and the two are combined for testing.

[0003] After retrieval, some prior arts were found and are introduced one by one as follows:

[0004] First, a Chinese utility model patent with the authorization announcement number CN204575471U discloses a WIFI router antenna kink tester, which can swing the WiFi antenna by 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 the combined test of the two, and its test type is relatively single and needs to be improved;

[0005] Second, a Chinese invention patent application with the application publication number CN117368587A fixes the antenna through a fixing mechanism, makes the receiving probe move relative to the antenna through a displacement mechanism, collects the radio frequency signals radiated by the antenna at each test position, and conducts performance tests on the antenna in multiple directions. It can only achieve the signal transmission test of the antenna, and there is also the problem of relatively single test type and needs to be improved. In addition, when it conducts the signal transmission test, in order to achieve the purpose of testing the performance of the antenna from different directions, the receiving probe needs to rotate 360 degrees around the antenna, and the test efficiency is low and needs to be improved.

[0006] Based on the above, the present invention proposes an antenna testing method and an antenna testing device. Summary of the Invention

[0007] To solve the problems mentioned in the above background, the present invention provides an antenna testing method and an antenna testing device.

[0008] To achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

[0009] An antenna test device includes a housing and a test mechanism disposed within the housing. The test mechanism includes a fixture, a signal receiving element, and a test member. The fixture is used to clamp a WiFi antenna. There are four signal receiving elements, which are respectively located at the four right angles of the inner cavity of the housing. The test member cooperates with the four signal receiving elements to implement the test of the WiFi antenna;

[0010] The housing is provided with a base. The test member includes a cantilever bracket connected to the base. A rotating bracket is rotatably mounted on the cantilever bracket, and a second rotating shaft formed at the rotation mounting position is power-connected to a second motor disposed on the cantilever bracket through a power transmission member. The second rotating shaft is horizontally arranged. 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.

[0011] As a further improvement and optimization of the present invention, the power transmission member includes a worm and a worm gear.

[0012] As a further improvement and optimization of the present invention, the fixture includes a rotating seat rotatably mounted on the base, and a first rotating shaft formed at the rotation mounting position is power-connected to a first motor disposed on the base. The first rotating shaft is vertically arranged. An upper bracket is detachably provided at the upper end of the rotating seat, and a test circuit for connecting with the WiFi antenna is also provided on the rotating seat.

[0013] As a further improvement and optimization of the present invention, the test component includes a connecting sliding seat slidably disposed on the column bracket. The sliding direction of the connecting sliding seat is parallel to the extending direction of the column bracket. A connecting sleeve column is provided on the side of the connecting sliding seat facing the fixture. The extending direction of the connecting sleeve column is parallel to the axial line direction of the second rotating shaft. A sliding column is slidably sleeved within the connecting sleeve column. The guiding direction of the sliding column is parallel to the extending 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.

[0014] As a further improvement and optimization of the present invention, a first linear module for driving the connecting sliding seat to move is provided on the column bracket, and a second linear module for driving the sliding column to move is provided within the connecting sleeve column.

[0015] As a further improvement and optimization of the present invention, the connecting sleeve columns in the two test components are distributed vertically. The test head on the upper connecting sleeve column is named the upper test head, and the test head on the lower connecting sleeve column is named the lower test head;

[0016] The upper test head is in a circular ring shape and the axial line of the upper test head is parallel to the extending direction of the column bracket. The lower test head includes a U-shaped rod in a U shape. The opening of the U-shaped rod faces the fixture and the center line of the inner region of the U-shaped rod is parallel to the extending direction of the column bracket. A convex pin rod also vertically extends from the bottom of the U-shaped rod.

[0017] An antenna testing method for an antenna testing device:

[0018] Step 1: Install the WiFi antenna to be tested on the fixture.

[0019] Step 2: Move the upper test head away from the WiFi antenna, and the antenna body of the WiFi antenna is located inside the U-shaped rod of the lower test head.

[0020] Drive the first rotating shaft to rotate through the first motor, and the first rotating shaft drives the rotating seat to rotate together, so that the axis a of the WiFi antenna is parallel to the second rotating shaft.

[0021] Step 3: Drive the second rotating shaft to rotate through the second motor, and the second rotating shaft drives the rotating bracket to rotate together. During the rotation process, the antenna body is toggled by the U-shaped rod to rotate 90 degrees around the axis a. While the antenna body rotates, it transmits signals outward, and through the cooperation of the signal receiving components, the signal transmission test of the WiFi antenna is realized.

[0022] Step 4: After the antenna body rotates 90 degrees around the axis a, the lower test head leaves the antenna body and makes the convex pin rod contact the antenna body.

[0023] Step 5: Drive the first rotating shaft to rotate through the first motor, 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 components, the signal transmission test of the WiFi antenna is realized.

[0024] An antenna testing method for an antenna testing device:

[0025] Step 1: Drive the rotating seat to rotate through the first motor, so that the axis a of the WiFi antenna is arranged at an angle with the second rotating shaft.

[0026] Step 2: Toggle the antenna body through 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 magnitude of the pressure applied to the antenna body can be obtained through the pressure sensor, and the connection strength at the axis a and the axis b is tested.

[0027] Step 3: The upper test head is sleeved on the upper end of the antenna body, and the antenna body is located inside the U-shaped rod.

[0028] Step 4: The lower test head moves away from the connecting sleeve column to test the strength of the antenna body.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 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:

[0031] 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;

[0032] 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;

[0033] 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.

[0034] 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;

[0035] 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

[0036] Figure 1 It is a cross-sectional view of an existing WiFi antenna;

[0037] Figure 2 It is a structural schematic diagram of the present invention;

[0038] Figure 3 Schematic diagram of the test structure Figure 1 ;

[0039] Figure 4 Schematic diagram of the structure of the testing mechanism Figure 2 ;

[0040] Figure 5 Schematic diagram of the structure of the testing mechanism Figure 3 ;

[0041] Figure 6 Schematic diagram of the fixture and the test component;

[0042] Figure 7 Partial sectional view of the fixture;

[0043] Figure 8 Schematic diagram of the test component;

[0044] Figure 9 Schematic diagram of the structure of the test assembly;

[0045] Figure 10 Partial schematic diagram of the test assembly;

[0046] The reference numerals in the drawings are:

[0047] 100, housing; 101, fixture; 1011, first motor; 1012, rotating base; 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 implementation manners

[0048] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0049] This solution is attached with Figure 1 a 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.

[0050] Referring to Figures 1 - 10 , an antenna testing device includes a housing 100 and a testing mechanism disposed within the housing 100.

[0051] The test mechanism includes a fixture 101, a signal receiving element 102, and a test component 200. The fixture 101 is used to clamp the WiFi antenna. There are four signal receiving elements 102, which are respectively located at the four right angles of the inner cavity of the housing 100. The test component 200 cooperates with the four signal receiving elements 102 to realize the test of the WiFi antenna.

[0052] Fixture 101: Refer to Figure 6 and Figure 7 , the fixture 101 includes a base. A rotating seat 1012 is rotatably installed on the base, and the first rotating shaft formed at the rotating installation position is in power connection with the first motor 1011. The first rotating shaft is arranged vertically. The first motor 1011 is arranged on the base. The upper end of the rotating seat 1012 is detachably provided with an upper bracket 1013, such as a bolt installation method or a clamping method, etc., which can be realized by the prior art and will not be elaborated. Generally, the existing WiFi antenna is assembled on the router by nuts or clamping methods. In this solution, the upper bracket 1013 is equivalent to the 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, the connection between the WiFi antenna and the test circuit 1014 needs to be completed, and then the upper bracket 1013 can be installed on the upper end of the rotating seat 1012.

[0053] The signal receiving element 102 can be realized by the prior art and can receive the signal emitted by the WiFi antenna. Therefore, the signal receiving element 102 cooperates with the WiFi antenna to realize the test of the signal transmission performance of the WiFi antenna.

[0054] Test component 200: Refer to Figure 6 and Figures 8 - 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 the second rotating shaft formed at the rotating installation position is in power connection with the second motor 202 through a power transmission member 203. The second rotating shaft is arranged horizontally. 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 and worm gear structure. In the attached drawings of this solution, it shows a bevel gear, and preferably a worm and worm gear.

[0055] The upper surface of the rotating bracket 204 is provided with a column bracket 205. Initially, the column bracket 205 is arranged vertically.

[0056] The column bracket 205 is provided with two test components.

[0057] The test component includes a connecting sliding seat 207 slidably arranged on the column bracket 205. The sliding direction of the connecting sliding seat 207 is parallel to the extending direction of the column bracket 205. A first linear module 206 for driving the connecting sliding seat 207 to move is arranged on the column bracket 205.

[0058] On one side of the connecting sliding seat 207 facing the fixture 101, there is a connecting sleeve column 208. The extending direction of the connecting sleeve column 208 is parallel to the axis line direction of the second rotating shaft. A sliding column 209 is slidably sleeved in the connecting sleeve column 208. The guiding direction of the sliding column 209 is parallel to the extending direction of the connecting sleeve column 208. A second linear module 210 for driving the sliding column 209 to move is arranged in the connecting sleeve column 208.

[0059] 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.

[0060] The connecting sleeve columns 208 in the two test components are distributed vertically. The test head on the upper connecting sleeve column 208 is named the upper test head 212, and the test head on the lower connecting sleeve column 208 is named the lower test head 213.

[0061] The upper test head 212 is in a circular ring shape and the axis line of the upper test head 212 is parallel to the extending direction of the column bracket 205.

[0062] The lower test head 213 includes a U-shaped rod 2131 in a U shape. The opening of the U-shaped rod 2131 faces the fixture 101 and the center line of the internal area of the U-shaped rod 2131 is parallel to the extending direction of the column bracket 205. A convex pin rod 2132 also vertically extends at the bottom of the U-shaped rod 2131.

[0063] An antenna test method for an antenna test device:

[0064] (1) Signal transmission performance test;

[0065] Step 1: Install the WiFi antenna to be tested on the fixture 101;

[0066] Step 2: Through the cooperation of the first linear module 206 and the second linear module 210, move the upper test head 212 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;

[0067] Drive the first rotating shaft to rotate through the first motor 1011. The first rotating shaft drives the rotating seat 1012 to rotate together, so that the axis a of the WiFi antenna is parallel to the second rotating shaft;

[0068] Step 3: Drive the second rotating shaft to rotate through the second motor 202. The second rotating shaft drives the rotating bracket 204 to rotate together. During the rotation process, the antenna body is driven to rotate around axis a by the U-shaped rod 2131. 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;

[0069] It should be noted that since there are four signal receiving elements 102, the antenna body only needs to rotate 90 degrees to one side. During this process, the included angle between the two signal receiving elements 102 on the side where the antenna body rotates is getting smaller and smaller, and the included angle between the remaining two signal receiving elements 102 and the antenna body is getting larger and larger. Therefore, in this solution, the antenna body rotates 90 degrees to achieve the effect of the antenna body rotating 180 degrees around axis a in the prior art;

[0070] Step 4: After the antenna body rotates 90 degrees around axis a, the test head 213 is pulled by the second linear module 210 to leave the antenna body and complete the reset. Then, the second linear module 210 cooperates with the first linear module 206 to enable the pin rod 2132 of the lower test head 213 to contact the antenna body;

[0071] Step 5: Drive the first rotating shaft to rotate through the first motor 1011, so that the antenna body rotates around axis b. Similarly, since there are four signal receiving elements 102 and they are respectively located at the four right angles of the inner cavity of the housing 100, the antenna body only needs to rotate 180 degrees around axis b to achieve the effect of the antenna body rotating 360 degrees around axis b in the prior art;

[0072] It can be seen from Step 1 - Step 5 that this solution can realize the test of the signal transmission performance of the WiFi antenna. During the test process, 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 90 degrees or 180 degrees to achieve the effect of the antenna body rotating 180 degrees around axis a or rotating 360 degrees around axis b in the prior art, doubling the test efficiency.

[0073] It should be noted that in life, when the router is actually used, the antenna body will at most rotate 180 degrees around axis a or 360 degrees around axis b. Therefore, only the signal transmission in these two situations needs to be simulated;

[0074] It should be noted that the above test method can also test the maximum number of rotations of axis a and axis b;

[0075] (2) Kink test:

[0076] 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;

[0077] 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.

[0078] 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;

[0079] 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;

[0080] 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;

[0081] 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.

[0082] 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.

[0083] 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 housing (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); The fixture (101) comprises a rotating seat (1012) rotatably mounted on a base, wherein a first rotating shaft formed at the rotating mounting position is power-connected to a first motor (1011) disposed on the base, the first rotating shaft is arranged vertically, an upper bracket (1013) is detachably disposed on the upper end of the rotating seat (1012), and a test circuit (1014) for connecting to a WiFi antenna is also disposed on the rotating seat (1012); 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); 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).

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: 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).

4. The antenna testing method of an antenna testing device according to claim 1, 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.

5. The antenna testing method of an antenna testing device according to claim 1, 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.

Images