An antenna testing system and method

Abstract

The present invention relates to the field of antenna testing, and discloses an antenna testing system, comprising a testing room and a testing mechanism arranged in the testing room, wherein the testing mechanism comprises two groups of testing components, wherein the testing components comprise a fixing seat and a connecting seat, wherein the fixing seat is fixedly arranged in the testing room, and the fixing seat and the connecting seat are connected via a traction assembly, wherein a telescopic rod is arranged on a side of the connecting seat away from the fixing seat, and at least three traction assemblies are arranged in an array along a circumferential direction, wherein initially, the overall lengths of all traction assemblies are consistent, and the axis center lines of the circumferential array directions of the traction assemblies coincide with the center lines of the telescopic rods, wherein the connecting seats in the two groups of testing components are located between the fixing seats in the two groups of testing components, a probe is arranged at the end of the telescopic rod in one group of testing components, and the end of the telescopic rod in the other group of testing components is used for placing an antenna to be tested.

Description

Technical Field

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

[0002] An antenna is a transducer that converts the guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium, or vice versa. In life, antennas are commonly seen in televisions, mobile phones, etc. Taking mobile phones as an example, as the usage frequency of mobile phones increases, higher performance requirements are imposed on mobile phone antennas.

[0003] Based on a search for the performance testing of mobile phone antennas, a Chinese invention patent was found. Its authorization announcement number is CN117335897B, which discloses an antenna performance testing device and a testing method. It can simulate environments with different levels of thunderstorms, rapid movement, vibration intensity, and electrostatic interference, and can test the performance of antennas under different usage environments. Among them, when driving the antenna to move rapidly, the driving motor is started through the motor speed control switch, and the driving motor is controlled at different speeds. The signal receiving and displaying component is used to observe and record the signal receiving state of the mobile phone antenna at different moving speeds. That is to say, when driving the mobile phone antenna to move, the movement action of the mobile phone antenna is a rotational action. However, in real life, mobile phones are generally carried and moved by users, commonly seen in usage scenarios such as users walking or running, users taking a vehicle, etc. In these usage scenarios, the movement trajectory of users is generally approximately straight. The rotational action disclosed in this patent document is equivalent to the user carrying the mobile phone and making a circle in place. As is well known, the action of the user carrying the mobile phone and making a circle is not common in life. Therefore, when this patent document simulates the usage scenario of the mobile phone antenna, it lacks the simulation of the scenario of the mobile phone antenna on an approximately straight movement trajectory, and the approximately straight movement trajectory is a common action in people's daily use of mobile phones. Therefore, this patent document has the problem that it does not simulate the common actions in people's daily use of mobile phones in terms of scenario simulation, resulting in the final test results of the mobile phone antenna being incomplete and inaccurate.

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

[0005] To solve the problems mentioned in the above background, the present invention provides an antenna testing system and method.

[0006] To achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

[0007] An antenna test system includes a test chamber and a test mechanism disposed in the test chamber. The test mechanism includes two sets of test components. Each test component includes a fixed seat and a connecting seat. The fixed seat is fixedly arranged in the test chamber. The fixed seat and the connecting seat are connected by a traction assembly. On the side of the connecting seat facing away from the fixed seat, a telescopic rod is provided. At least three traction assemblies are arranged in a circumferential array. Initially, the overall lengths of all the traction assemblies are the same, and the axis of the circumferential array direction of the traction assemblies coincides with the center line of the telescopic rod. The connecting seats in the two sets of test components are located between the fixed seats in the two sets of test components. At the end of the telescopic rod in one set of test components, a probe is provided, and at the end of the telescopic rod in the other set of test components, an antenna to be tested is placed.

[0008] As a further improvement and optimization of the present invention, the traction assembly includes a support seat provided on the fixed seat. On the support seat, a movable seat is hinged, and the axis of the hinge axis formed at the hinge is perpendicular to the axis of the circumferential array direction of the traction assembly. An air pump and a linear module are provided on the movable seat.

[0009] As a further improvement and optimization of the present invention, a guide rod is provided on the movable seat. The guiding direction of the guide rod is perpendicular to the axis of the hinge axis. The air pump includes a pump housing. On the outer surface of the pump housing, a lug is provided. The lug and the guide rod form a sliding connection. The extending direction of the pump housing is parallel to the guiding direction of the guide rod. A piston is sleeved inside the pump housing. A piston rod extends from the end face of the piston. The end of the piston rod is ball-jointed with the connecting seat.

[0010] As a further improvement and optimization of the present invention, a threaded sleeve is provided on the cavity wall of the pump housing close to the fixed seat. The piston is in a circular ring shape. The inside of the piston rod is hollow. Both the piston and the piston rod are sleeved outside the threaded sleeve.

[0011] The linear module includes a lead screw threadedly arranged in the threaded sleeve. One end of the lead screw extends out of the pump housing and is power-connected to a motor provided on the movable seat.

[0012] As a further improvement and optimization of the present invention, the telescopic rod includes a plurality of telescopic sections. The inside of the telescopic section is hollow, and an external step is provided at one end and an internal step is provided at the other end.

[0013] Among two adjacent telescopic sections, the external step of one telescopic section is sleeved inside the adjacent telescopic section, and a spring is provided between the external step of one telescopic section and the internal step of the adjacent telescopic section.

[0014] The plurality of telescopic sections are divided into a first telescopic section, a last telescopic section, and intermediate telescopic sections located between the two. The end of the first telescopic section is connected to the connecting seat. The end of the last telescopic section is connected to the probe or the antenna to be tested.

[0015] As a further improvement and optimization of the present invention, the inside of the connecting seat is hollow. A connecting hole is provided on the connecting seat for communicating its inner cavity with the first telescopic joint. A connecting head communicating with its inner cavity is provided on the outer surface of the connecting seat.

[0016] As a further improvement and optimization of the present invention, buffer layers made of rubber or silica gel are provided on both the inner wall of the built-in step and the outer wall of the external step.

[0017] As a further improvement and optimization of the present invention, an inlet is provided on the upper end surface of the test chamber, and an outlet is provided on the lower end surface;

[0018] An insertion port is provided on the side of the test chamber. A shielding shutter is inserted into the insertion port. The inside of the shielding shutter is hollow and two connecting nozzles are provided on the outer surface. The fixed seats of the two groups of test components are respectively located on both sides of the shielding shutter.

[0019] A test method for an antenna test system. The scenario of simulating a user carrying a mobile phone and moving includes the following steps:

[0020] Step 1: Install the antenna to be tested at the end of the piston rod of a group of test components, and install the probe at the end of the piston rod of another group of test components;

[0021] Step 2: Inject air into the telescopic rod to make the telescopic rod extend;

[0022] Step 3: Drive the position of the end of the piston rod to change through an air pump. Since the piston rod is spherical hinged with the connecting seat and the movable seat is hinged with the support, therefore, by changing the positional relationship between the ends of the piston rods of the traction components, the connecting seat can be made to yaw. The yaw of the connecting seat drives the telescopic rod to yaw together, and the telescopic rod drives the antenna to be tested to yaw together. Based on the linear velocity being equal to the product of the angular velocity and the radius, the antenna to be tested moves at high speed, that is, simulating the scenario of a user carrying a mobile phone and moving at high speed.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] Through the cooperation of the telescopic rod and at least three traction components, this solution can drive the end of the telescopic rod to move arbitrarily in a three-dimensional coordinate system, that is, drive the probe or the antenna to be tested to move arbitrarily in a three-dimensional coordinate system, so as to adjust the relative positional relationship between the probe and the antenna to be tested, that is, simulate the situation where the antenna to be tested is located at different positions around the probe;

[0025] By extending the telescopic rod and using the traction component to cause the telescopic rod to deflect, based on the fact that the linear velocity is equal to the product of the angular velocity and the radius, the telescopic rod deflects at a relatively low speed. That is, it can drive the probe or the antenna to be tested to move at a relatively fast speed, and although the movement trajectory is arc-shaped, due to the long length of the telescopic rod, the movement trajectory is approximately a straight line. Moreover, the longer the telescopic rod, the faster the movement speed and the more approximate the movement trajectory is to a straight line. Therefore, it can better simulate the movement trajectory when a user carries a mobile phone. For example: 1. When a user walks while carrying a mobile phone, the walking speed is relatively slow and the walking trajectory is approximately a straight line. Therefore, extend the telescopic rod to the longest length, and then slowly drive the telescopic rod to deflect, and this scenario can be simulated. In this scenario, although the telescopic rod is extended to the longest length, the speed is relatively low and the inertia is low, so it will not bring additional impact to the test component; 2. When a user is in a vehicle and the vehicle turns, the speed is relatively slow. Therefore, drive the telescopic rod to have a moderate elongation, for example, extend it by half, and then drive the telescopic rod to deflect. At this time, the diameter of the trajectory at the end of the telescopic rod is shorter. Therefore, the trajectory and speed are closer to those of the mobile phone in the vehicle when turning, that is, this scenario can be simulated, and due to the low speed, the inertia is low; 3. When a user is in a vehicle and the vehicle is moving straight, the speed is relatively fast. Therefore, extend the telescopic rod to the longest length, and then drive the telescopic rod to deflect faster, and this scenario can be simulated. In this scenario, the telescopic rod is extended to the longest length and the speed is fast, so the inertia is large. In this solution, by optimizing and improving the structures of the traction component and the telescopic rod, the influence of inertia on the test component is reduced;

[0026] Specifically, on the one hand, since it is the air pump that drives the telescopic rod to deflect faster, when the deflection stops, the air in the air pump can be compressed and can act as a buffer medium to reduce the influence brought by inertia. On the other hand, since the telescopic joints that make up the telescopic rod are hollow inside, the mass is relatively light, which can reduce the magnitude of the inertial force. On the other hand, when the deflection stops, since the inner walls of the built-in step and the external step are provided with buffer layers, the telescopic joint can be prevented from being crushed under the action of the inertial force. Further, the telescopic joint can shift slightly to one side, and the telescopic joint drives the external step to shift together. Also, since the compression amount of the spring is large at this time, the spring can be used to buffer the shift of the external step, that is, buffer the shift of the telescopic joint. The buffer layers are provided on the external step and the built-in step to enable the slight translation of the external step and the built-in step. Through the cooperation of these three, the influence brought by the inertial force can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Structural schematic of the present invention Figure One ;

[0028] Figure 2 Structural schematic of the present invention Figure Two ;

[0029] Figure 3 Schematic diagram of the shielding gate and two test components;

[0030] Figure 4 Schematic diagram of two test components;

[0031] Figure 5 Structural schematic diagram of the test component;

[0032] Figure 6 Structural schematic diagram of the traction assembly;

[0033] Figure 7 Cross-sectional view of the traction assembly;

[0034] Figure 8 Cross-sectional view of the connection seat and the telescopic rod;

[0035] Figure 9 Connection schematic diagram of two adjacent telescopic joints.

[0036] The reference numerals in the drawings are:

[0037] 100, test chamber; 101, entrance; 102, exit; 103, shielding gate; 104, connecting nozzle; 200, test component; 201, fixed seat; 202, traction assembly; 2021, support; 2022, movable seat; 2023, motor; 2024, lead screw; 2025, pump housing; 2026, threaded sleeve; 2027, piston; 2028, piston rod; 203, connection seat; 2031, connection head; 2032, connection hole; 204, telescopic rod; 2041, telescopic joint; 2042, internal step; 2043, external step; 2044, spring; 205, probe. Detailed implementation manners

[0038] In order 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, describe in detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0039] Referring to Figures 1-9 , an antenna test system includes a test chamber 100 and a test mechanism disposed in the test chamber 100.

[0040] The test mechanism includes two groups of test components 200.

[0041] Referring to Figure 5The test component 200 includes a fixed seat 201 and a connecting seat 203. The fixed seat 201 is fixedly arranged in the test chamber 100. The fixed seat 201 and the connecting seat 203 are connected through a traction component 202. A telescopic rod 204 is arranged on the side of the connecting seat 203 away from the fixed seat 201. At least three traction components 202 are arranged in an array along the circumferential direction. Initially, the overall length of all traction components 202 is consistent and the axis center line of the circumferential array direction of the traction component 202 coincides with the center line of the telescopic rod 204. In addition, the connecting seat 203 in the two groups of test components 200 is located between the fixed seats 201 in the two groups of test components 200. A probe 205 is arranged at the end of the telescopic rod 204 in one group of test components 200, and the end of the telescopic rod 204 in the other group of test components 200 is used to place the antenna to be tested. The placement method can adopt the existing clamp technology or the existing screw fixing method, etc., which will not be repeated.

[0042] By cooperating with at least three traction components 202 and the telescopic rod 204, the end of the telescopic rod 204 can be towed to move arbitrarily in the three-dimensional coordinate system, that is, the probe 205 or the antenna to be tested can be towed to move arbitrarily in the three-dimensional coordinate system, so as to adjust the relative position relationship between the probe 205 and the antenna to be tested, that is, to simulate the situation that the antenna to be tested is located at different positions around the probe 205. In addition, the telescopic rod 204 is extended and the telescopic rod 204 is towed by the traction component 202 to cause a deflection. Based on the fact that the linear velocity is equal to the product of the angular velocity and the radius, the telescopic rod 204 deflects at a relatively low speed, that is, the probe 205 or the antenna to be tested can be driven to move at a relatively fast speed. Although the moving trajectory is an arc, due to the long length of the telescopic rod 204, the moving trajectory is approximately a straight line, and the longer the telescopic rod 204 is, the faster the moving speed is and the more the moving trajectory is approximately a straight line. Therefore, the movement trajectory of the user carrying a mobile phone can be better simulated, for example:

[0043] When a user walks with a mobile phone, the walking speed is relatively slow and the walking track is approximately straight. Therefore, the telescopic rod 204 is extended to the longest position and then slowly driven to swing, so as to simulate this scene. In this scene, although the telescopic rod 204 is extended to the longest position, the speed is relatively low and the inertia is low, so it will not bring additional impact to the test component 200.

[0044] When the user is riding in a vehicle and the vehicle turns, the speed is relatively slow. Therefore, the telescopic rod 204 is extended moderately, for example, halfway, and then the telescopic rod 204 is driven to swing. At this time, the diameter of the trajectory of the end of the telescopic rod 204 is shorter. Therefore, the trajectory and speed are closer to the trajectory and speed of the mobile phone in the vehicle when turning, that is, this scene can be simulated, and because the speed is lower, the inertia is lower;

[0045] When the user is riding in the vehicle and the vehicle is moving straight with a relatively high speed, the telescopic rod 204 is driven to extend to the longest length, and then the telescopic rod 204 is driven to yaw faster, thus simulating this scenario. In this scenario, the telescopic rod 204 extends to the longest length and has a high speed, so the inertia is large. In this solution, by structurally optimizing and improving the traction assembly 202 and the telescopic rod 204, the influence of inertia on the test component 200 is reduced, which will be specifically described later.

[0046] Traction assembly 202: Refer to Figures 5-7 , the traction assembly 202 includes a support 2021 provided on the fixed seat 201. An active seat 2022 is hinged on the support 2021, and the axis line of the hinge axis formed at the hinge is perpendicular to the axis line of the circumferential array direction of the traction assembly 202.

[0047] An air pump and a linear module are provided on the active seat 2022.

[0048] A guide rod is provided on the active seat 2022, and the guiding direction of the guide rod is perpendicular to the axis line of the hinge axis.

[0049] The air pump includes a pump housing 2025. Lugs are provided on the outer surface of the pump housing 2025. The lugs and the guide rod form a sliding connection. The extending direction of the pump housing 2025 is parallel to the guiding direction of the guide rod. A piston 2027 is sleeved inside the pump housing 2025. A piston rod 2028 extends from the end face of the piston 2027. The end of the piston rod 2028 is ball-jointed with the connecting seat 203. It should be noted that the air pump can be realized by existing technologies. Therefore, by injecting or extracting a gas medium, such as air, into the pump housing 2025, the piston 2027 can be driven to move inside the pump housing 2025, which can be realized by existing technologies and will not be elaborated here.

[0050] A threaded sleeve 2026 is provided on the cavity wall of the pump housing 2025 close to the fixed seat 201. The piston 2027 is in a circular ring shape. The inside of the piston rod 2028 is hollow. Both the piston 2027 and the piston rod 2028 are sleeved outside the threaded sleeve 2026.

[0051] The linear module includes a lead screw 2024 threadedly arranged inside the threaded sleeve 2026. One end of the lead screw 2024 extends out of the pump housing 2025 and is power-connected to a motor 2023 provided on the active seat 2022.

[0052] The working process of the traction assembly 202 is specifically as follows:

[0053] The linear module can drive the entire air pump to move: the motor 2023 drives the lead screw 2024 to rotate, and the rotation of the lead screw 2024 can drive the entire air pump to move; the air pump can drive the position of the end of the piston rod 2028 to change;

[0054] Since the piston rod 2028 is ball-jointed with the connecting seat 203 and the movable seat 2022 is hinged with the support 2021, by changing the positional relationship between the ends of the piston rods 2028 of the three traction assemblies 202, the connecting seat 203 can be made to yaw, and the yaw of the connecting seat 203 will cause the telescopic rod 204 to yaw together;

[0055] It should be noted that when simulating the situation where the antenna to be tested is at different positions around the probe 205, the linear module is used to drive the overall movement of the air pump, thereby driving the change of the end position of the piston rod 2028, causing the connecting seat 203 to yaw, and cooperating with the telescopic movement of the telescopic rod 204 to simulate the situation where the antenna to be tested is at different positions around the probe 205. The reason for this is that the movement accuracy of the linear module is higher. When simulating the movement trajectory of a user carrying a mobile phone, the air pump is used to drive the change of the end position of the piston rod 2028. The reason for this is that the operating speed of the air pump is faster.

[0056] Telescopic rod 204: Refer to Figure 8 and Figure 9 , the telescopic rod 204 includes a plurality of telescopic joints 2041.

[0057] The inside of the telescopic joint 2041 is hollow, and an external step 2043 is provided at one end and an internal step 2042 is provided at the other end.

[0058] Connection relationship between adjacent two telescopic joints 2041: The external step 2043 of one telescopic joint 2041 is sleeved inside the adjacent telescopic joint 2041, and a spring 2044 is provided between the external step 2043 of one telescopic joint 2041 and the internal step 2042 of the adjacent telescopic joint 2041.

[0059] The plurality of telescopic joints 2041 are divided into a first telescopic joint, a last telescopic joint and intermediate telescopic joints located between the two. Among them, the end of the first telescopic joint is connected to the connecting seat 203, and the end of the last telescopic joint is connected to the probe 205 or the antenna to be tested.

[0060] The inside of the connecting seat 203 is hollow. A connecting hole 2032 for communicating its inner cavity with the first telescopic joint is provided on the connecting seat 203. A connecting head 2031 communicating with its inner cavity is provided on the outer surface of the connecting seat 203. The connecting head 2031 is connected to existing equipment such as an air compressor through a hose. Through existing equipment such as an air compressor, air can be injected into the connecting seat 203, and thus air can be injected into the telescopic joint 2041 to make the telescopic rod 204 gradually elongate, and the spring 2044 is compressed. When the air in the connecting seat 203 is pumped out, the spring 2044 releases its elastic force and the telescopic rod 204 gradually contracts.

[0061] In a preferred embodiment, a buffer layer made of a soft material such as rubber or silica gel is provided on the inner wall of the built-in step 2042 and the outer wall of the external step 2043.

[0062] The mobile usage environment of the mobile phone antenna has been specifically described above, so it will not be elaborated here. Now, the simulation of the high-speed mobile usage environment of the mobile phone will be described:

[0063] When the user is in a vehicle and the vehicle is moving straight at a relatively high speed, the telescopic rod is driven to extend to the longest length, and then the telescopic rod is driven to accelerate yaw, so as to simulate this scenario. In this scenario, the telescopic rod extends to the longest length and has a relatively high speed, so the inertia is relatively large. In this solution: on the one hand, since the air pump is used to drive the telescopic rod to accelerate yaw, when the yaw stops, the air in the air pump can be compressed, so it can act as a buffer medium to reduce the impact of inertia. On the other hand, since the telescopic joints that make up the telescopic rod are hollow inside, the mass is relatively light, which can reduce the magnitude of the inertial force. On the other hand, when the yaw stops, since the inner walls of the built-in step and the external step are provided with buffer layers, the telescopic joints can be prevented from being crushed under the action of the inertial force. Further, the telescopic joints can be slightly offset to one side. The telescopic joints drive the external step to shift together. Also, since the compression amount of the spring is relatively large at this time, the spring can be used to buffer the shift of the external step, that is, buffer the shift of the telescopic joints. The buffer layers provided on the external step and the built-in step enable the slight translation of the external step and the built-in step. Through the cooperation of these three, the impact of the inertial force can be reduced.

[0064] In a preferred embodiment, referring to Figures 1-3 , an inlet 101 is provided on the upper end surface of the test chamber 100, and an outlet 102 is provided on the lower end surface. The humidity of the air can be adjusted by existing humidifier technology, the temperature of the air can be adjusted by existing heating technology, and the air in the test chamber 100 can be drawn out through the outlet 102 by existing blower technology. New air enters the test chamber 100 through the inlet 101, so as to adjust the humidity and temperature in the test chamber 100 and simulate the humidity and temperature parameters of different usage environments of the mobile phone antenna.

[0065] A socket is provided on the side surface of the test chamber 100, and a shielding shutter 103 is inserted into the socket. The shielding shutter 103 is hollow inside and two connecting nozzles 104 are provided on the outer surface. Different shielding coefficient media can be injected into the shielding shutter 103 through pump technology, so as to change the signal shielding coefficient of the shielding shutter 103. The two test components 200 can be located on both sides of the shielding shutter 103 respectively, and different thicknesses and different materials of walls can be simulated through the shielding shutter 103.

[0066] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An antenna test system, comprising a test chamber (100) and a test mechanism disposed within the test chamber (100), characterized in that, The test mechanism comprises two groups of test components (200), the test components (200) comprising a fixed seat (201) and a connecting seat (203), the fixed seat (201) being fixedly arranged in the test chamber (100), the fixed seat (201) and the connecting seat (203) being connected via a traction assembly (202), a telescopic rod (204) being arranged on a side of the connecting seat (203) facing away from the fixed seat (201), and at least three traction assemblies (202) being arranged in an array along a circumferential direction, and initially, all the traction assemblies (202) are arranged in an array along a circumferential direction. The overall lengths of the traction components (202) are consistent and the axis centerline of the circumferential array direction of the traction components (202) coincides with the centerline of the telescopic rod (204); the connecting seats (203) in the two groups of test components (200) are located between the fixing seats (201) in the two groups of test components (200); the ends of the telescopic rods (204) in one group of test components (200) are provided with probes (205); and the ends of the telescopic rods (204) in the other group of test components (200) are used to place the antenna to be tested; The traction assembly (202) comprises a support (2021) arranged on a fixed seat (201), a movable seat (2022) being hingedly arranged on the support (2021), and the axis centerline of the hinge axis formed at the hinge is perpendicular to the axis centerline of the circumferential array direction of the traction assembly (202), and an air pump and a linear module are arranged on the movable seat (2022); The telescopic rod (204) comprises a plurality of telescopic joints (2041); the interior of the telescopic joint (2041) is hollow and one end is provided with an external step (2043) and the other end is provided with an internal step (2042); In two adjacent telescopic joints (2041), an external step (2043) of one telescopic joint (2041) is sleeved in an adjacent telescopic joint (2041), and a spring (2044) is provided between the external step (2043) of one telescopic joint (2041) and the internal step (2042) of the adjacent telescopic joint (2041); The plurality of telescopic joints (2041) are divided into a first telescopic joint, a tail telescopic joint, and a middle telescopic joint located between the first telescopic joint and the tail telescopic joint, the end of the first telescopic joint being connected to the connection seat (203), and the end of the tail telescopic joint being connected to the probe (205) or the antenna to be tested; The interior of the connection seat (203) is hollow, and a connection hole (2032) for connecting the inner cavity of the connection seat (203) with the first telescopic joint is provided on the connection seat (203), and a connection head (2031) communicating with the inner cavity of the connection seat (203) is provided on the outer surface of the connection seat (203); The inner wall of the built-in step (2042) and the outer wall of the external step (2043) are both provided with a buffer layer made of rubber or silicone; The following steps are used to simulate a scenario where a user moves with a mobile phone: Step 1: installing the antenna to be tested on the end of the piston rod (2028) of one set of test components (200), and installing the probe on the end of the piston rod (2028) of another set of test components (200); Step 2: injecting air into the telescopic rod (204) to extend the telescopic rod (204); Step 3: Drive the position of the end of the piston rod (2028) by an air pump. Since the piston rod (2028) is spherical hinge-connected to the connecting seat (203), and the movable seat (2022) is hinge-connected to the support seat (2021), therefore, by changing the positional relationship between the ends of the piston rod (2028) of the traction assembly (202), the connecting seat (203) can be deflected. The deflection of the connecting seat (203) drives the telescopic rod (204) to deflect together, and the telescopic rod (204) drives the antenna to be tested to deflect. Based on the fact that the linear velocity is equal to the product of the angular velocity and the radius, the antenna to be tested moves at a high speed, that is, simulating the scenario where a user carries a mobile phone and moves at a high speed.

2. The antenna test system according to claim 1, characterized in that A guide rod is provided on the movable seat (2022). The guiding direction of the guide rod is perpendicular to the axis line of the hinge axis. The air pump includes a pump housing (2025). Lugs are provided on the outer surface of the pump housing (2025). The lugs and the guide rod form a sliding connection. The extending direction of the pump housing (2025) is parallel to the guiding direction of the guide rod. A piston (2027) is sleeved inside the pump housing (2025). A piston rod (2028) extends from the end face of the piston (2027). The end of the piston rod (2028) is spherical hinge-connected to the connecting seat (203).

3. An antenna test system according to claim 2, wherein A threaded sleeve (2026) is provided on the chamber wall of the pump housing (2025) close to the fixed seat (201). The piston (2027) is in a ring shape. The inside of the piston rod (2028) is hollow. Both the piston (2027) and the piston rod (2028) are sleeved outside the threaded sleeve (2026). The linear module includes a lead screw (2024) threadedly arranged inside the threaded sleeve (2026). One end of the lead screw (2024) extends out of the pump housing (2025) and is power-connected to a motor (2023) provided on the movable seat (2022).

4. An antenna test system according to claim 1, characterized in that, An inlet (101) is provided on the upper end face of the test chamber (100), and an outlet (102) is provided on the lower end face. A socket is provided on the side of the test chamber (100). A shielding shutter (103) is inserted into the socket. The inside of the shielding shutter (103) is hollow and two connecting nozzles (104) are provided on the outer surface. The fixed seats (201) of the two groups of test components (200) are respectively located on both sides of the shielding shutter (103).

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