Antenna test system

Abstract

The utility model discloses an antenna test system, which is used for testing a product comprising at least two test antennas and comprises a transmitting assembly, a receiving assembly, an analyzer and a control terminal, the transmitting assembly and the receiving assembly are respectively in communication connection with the control terminal, and the transmitting assembly and the receiving assembly are electrically connected with the analyzer; the analyzer is provided with a receiving port; the receiving assembly comprises a receiving end matrix switch and a load electrically connected with the receiving end matrix switch; the receiving end matrix switch is electrically connected with the receiving port, and the receiving end matrix switch is used for electrically connecting the test antenna with the receiving port or a load. According to the utility model, the accuracy and the error-tolerant rate of a detection result can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle antenna test technical field especially is to point to a kind of antenna test system. BACKGROUND

[0002] The existing vehicle glass multi-antenna test system is usually composed of a network analyzer, a transmitting assembly (including a transmitting antenna, a transmitting tower and a transmitting port), a receiving assembly (including a rotating platform and a receiving port) and a control terminal (usually a computer). The test method of the vehicle glass multi-antenna test system is to connect the test antenna with the receiving port, control the test antenna to rotate through the rotating platform, control the network analyzer to collect the test antenna data at different rotation angles through the control terminal, and control the transmitting assembly polarization to change to collect the data of another polarization.

[0003] Since multiple antennas are arranged on the vehicle glass, in order to collect data for each antenna, the test antenna connected with the receiving port needs to be manually switched by artificial operation to ensure that each antenna can receive complete test. Although this manual switching method is feasible, it is complicated to operate, which increases the complexity and time cost of test operation to some extent and reduces the fault tolerance rate of test results. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide an antenna test system to reduce operation difficulty and improve the fault tolerance rate of test.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme that:

[0006] An antenna test system includes a transmitting assembly, a receiving assembly, an analyzer, a control terminal and at least two test antennas.

[0007] The transmitting assembly and the receiving assembly are respectively in communication connection with the control terminal, and the transmitting assembly and the receiving assembly are respectively in electrical connection with the analyzer.

[0008] The receiving assembly includes a receiving end matrix switch and a receiving port.

[0009] The receiving end matrix switch is in electrical connection with the receiving port, and the receiving end matrix switch is used to electrically connect the test antenna with the receiving port or a load.

[0010] Further, the receiving assembly further includes a rotating platform.

[0011] The test antenna and the receiving assembly are respectively arranged on the rotating platform, and the test antenna is arranged at an interval from the rotation center point of the rotating platform.

[0012] Further, the receiving end matrix switch has a plurality of first interfaces electrically connected with the test antennas one by one.

[0013] At least one of the first interfaces is electrically connected with the receiving port.

[0014] Further, the receiving end matrix switch comprises loads.

[0015] The rest of the first interfaces are electrically connected with corresponding loads respectively.

[0016] Further, the receiving end matrix switch has a second interface, and the test antennas electrically connected with the receiving end matrix switch are electrically connected with the rotating platform through the second interface.

[0017] Further, the receiving assembly further comprises a receiving end signal transmission module.

[0018] The receiving end signal transmission module is integrated in the receiving end matrix switch, the receiving end signal transmission module is electrically connected with the rotating platform through the receiving end matrix switch, and the receiving end signal transmission module is in communication connection with the control terminal.

[0019] Further, the transmitting assembly comprises a dual-polarized transmitting antenna and a transmitting end matrix switch.

[0020] The dual-polarized transmitting antenna is electrically connected with the transmitting matrix switch, and the transmitting end matrix switch is used for switching polarization of the dual-polarized transmitting antenna.

[0021] Further, the transmitting assembly has a transmitting port.

[0022] The transmitting end matrix switch is electrically connected with the analyzer through the transmitting port.

[0023] Further, the transmitting assembly further comprises a transmitting tower and a height adjusting assembly.

[0024] The height adjusting assembly is arranged on one side of the transmitting tower and is distributed along the height direction of the transmitting tower.

[0025] The dual-polarized transmitting antenna and the transmitting end matrix switch are connected with the movable end of the height adjusting assembly.

[0026] Further, the transmitting end matrix switch has a horizontal polarization port and a vertical polarization port.

[0027] The advantages of this invention are as follows: by setting up a receiver matrix switch to automatically switch the test antenna electrically connected to the receiver port, the operational difficulty is reduced and the fault tolerance of the test results is improved. Compared with the prior art, it can realize fully automated data acquisition of glass antennas, reduce operational difficulty, greatly improve testing efficiency, and reduce equipment wear. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a multi-antenna test system in the prior art;

[0029] Figure 2 This is a schematic diagram of one connection state of the antenna testing system in this utility model;

[0030] Figure 3 This is a schematic diagram of another connection state of the antenna testing system in this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the launching component in this utility model. Figure 1 ;

[0032] Figure 5 This is a schematic diagram of the structure of the launching component in this utility model. Figure 2 .

[0033] Label Explanation:

[0034] 1. Test the antenna;

[0035] 3. Transmitting assembly; 30. Transmitting port; 31. Dual-polarized transmitting antenna; 32. Transmitting matrix switch; 321. Horizontal polarization port; 322. Vertical polarization port; 34. Transmitting tower; 35. Height adjustment assembly;

[0036] 4. Receiver component; 40. Receiver port; 41. Receiver matrix switch; 411. First interface; 412. Second interface; 42. Load; 43. Rotating platform; 44. Receiver signal transmission module; 45. Power supply component;

[0037] 5. Analyzer;

[0038] 6. Control terminal. Detailed Implementation

[0039] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0040] The existing vehicle-mounted glass multi-antenna test system is usually composed of a network analyzer 10, a transmitting assembly 20 (including a transmitting antenna, a transmitting tower and a transmitting port), a receiving assembly 30 (including a rotating platform and a receiving port) and a control terminal 40 (usually a computer). The test method of the vehicle-mounted glass multi-antenna test system is to connect a test antenna 50 with the receiving port 101 of the network analyzer 10, control the test antenna to rotate through the rotating platform, control the network analyzer to collect the test antenna data at different rotation angles through the control terminal, and control the polarization of the transmitting assembly to change to collect the data of another polarization.

[0041] Since multiple antennas are arranged on the vehicle-mounted glass, in order to collect data of each antenna, the test antenna connected with the receiving port needs to be manually switched by artificial operation to ensure that each antenna can receive complete test. Although this manual switching method is feasible, it is complicated to operate, which increases the complexity and time cost of test operation to some extent and reduces the fault tolerance rate of test results.

[0042] Please refer to Figures 2-5 , an antenna test system is provided, which comprises a transmitting assembly 3, a receiving assembly 4, an analyzer 5, a control terminal 6 and at least two test antennas 1; the test antenna 1 is used to receive the test signal emitted by the transmitting assembly 3, the transmitting assembly 3 and the receiving assembly 4 are respectively in communication connection with the control terminal 6, and the transmitting assembly 3 and the receiving assembly 4 are respectively in electrical connection with the analyzer 5; the receiving assembly 4 comprises a receiving end matrix switch 41 and a receiving port 40; the receiving end matrix switch 41 is in electrical connection with the receiving port 40, and the receiving end matrix switch 41 is used to switch the test antenna 1 in electrical connection with the receiving port 40. The receiving port 40 is used to be in electrical connection with the receiving end of the analyzer 5.

[0043] It can be understood that by arranging the receiving end matrix switch 41, the test antenna 1 in electrical connection with the receiving port 40 is automatically switched, the operation difficulty is reduced, and the fault tolerance rate of test results is improved.

[0044] In some embodiments, the receiving assembly 4 further comprises a rotating platform 43; the test antenna 1 and the receiving assembly 4 are respectively arranged on the rotating platform 43, and the test antenna 1 is arranged at a distance from the rotation center point of the rotating platform 43. The rotating platform 43 is arranged to control the rotation angle of the test antenna 1 and to enable the analyzer 5 to collect data of the test antenna 1 at different angles. Specifically, when the test starts, the rotating platform 43 is first rotated counterclockwise to a position of about -0.8°, so as to ensure that when the rotating platform 43 is rotated to a predetermined angle of -0.5°, the rotating platform 43 can enter a stable running state at a constant speed, and in the process of rotating the rotating platform 43 to -0.5°-0.5°, the test antenna 1 sends a test signal to the analyzer 5, and the analyzer 5 performs first data collection. Due to the objective limitations of the scanning speed of the analyzer 5 and the switching time of the receiving end matrix switch 41, a dynamic data collection method is adopted in the present application, that is, the data collected in the interval of -0.5° to 0.5° is recorded as the data point of 0°. Similarly, for the interval of 0.5° to 1.5° that the rotating platform 43 continues to rotate, the collected data is recorded as the data point of 1°, and so on, until the rotating platform 43 completes a full rotation.

[0045] In some embodiments, the receiving end matrix switch 41 has a plurality of first interfaces 411 electrically connected one by one with the test antenna 1; at least one first interface 411 is electrically connected with the receiving port 40. The plurality of first interfaces 411 are arranged to enable a plurality of test antennas 1 to be electrically connected with the receiving end matrix switch 41 at the same time, so as to facilitate sequential data collection of the plurality of test antennas 1 and automatic switching of the plurality of antennas with the receiving port 40 of the receiving assembly 4.

[0046] In some embodiments, the receiving end matrix switch 41 comprises a plurality of loads 42, and the number of the loads 42 is one less than the number of the test antennas 1; when a first interface 411 of a certain test antenna 1 is connected with the receiving port 40, the first interfaces 411 of the remaining test antennas 1 are respectively electrically connected with corresponding loads 42. Optionally, the resistance of the load 42 is 35 ohms, 50 ohms, or 75 ohms, and the load 42 with a corresponding resistance value can be selected according to actual conditions. The arrangement of the load 42 can match the impedance of the antenna test system, can absorb excess power, can protect the antenna test system from damage, and can maintain the stability of the antenna test system. Specifically, when a certain test antenna 1 needs to be tested, the receiving end matrix switch 41 switches the first interface 411 corresponding to the test antenna 1 to be connected with the receiving port 40, and the remaining test antennas 1 are switched to be respectively connected with the loads 42 to be in an open circuit state.

[0047] In some embodiments, the receiving end matrix switch 41 has a second interface 412, and the test antenna 1 electrically connected with the receiving end matrix switch 41 is electrically connected with the rotating platform 43 through the second interface 412. The second interface 412 is an output end of the receiving end matrix switch 41, and is electrically connected with the port of the rotating platform 43 through a radio frequency cable, and is connected with the receiving end of the analyzer 5 through the rotating platform 43.

[0048] In some embodiments, the receiving assembly 4 further comprises a receiving end signal transmission module 44, which is integrated in the receiving end matrix switch 41, and is electrically connected with the rotating platform 43 through the receiving end matrix switch 41, and is in communication connection with the control terminal 6. The receiving end signal transmission module 44 has the functions of receiving signals and transmitting signals, and is used to feed back the state of the rotating platform 43 to the control terminal 6, and to control the analyzer 5 to collect the data of the test antenna 1 by the control terminal 6, so as to realize automatic control.

[0049] In some embodiments, the transmitting assembly 3 comprises a dual-polarized transmitting antenna 31 and a transmitting end matrix switch 32, and the dual-polarized transmitting antenna 31 is electrically connected with the transmitting end matrix switch 32, and the transmitting end matrix switch 32 is used to switch the polarization of the dual-polarized transmitting antenna 31. Correspondingly, a transmitting end signal transmission module is arranged on the transmitting assembly 3, and is electrically connected with the transmitting end matrix switch 32, and is in communication connection with the control terminal 6. When the control terminal 6 receives the signal of the analyzer 5, an instruction is sent to the transmitting end signal transmission module, and the instruction is sent to the transmitting end matrix switch 32 by the transmitting end signal transmission module, and the polarization of the dual-polarized transmitting antenna 31 is controlled by the transmitting end matrix switch 32, and after the switching is completed, the information is fed back to the control terminal 6 by the transmitting end signal transmission module. Specifically, the analyzer 5 is electrically connected with the transmitting assembly 3 through a radio frequency cable, and after the signal to be transmitted by the analyzer 5 is transmitted to the transmitting assembly 3 through the radio frequency cable, the signal is radiated in the form of electromagnetic wave by the transmitting assembly 3; the signal is emitted by the transmitting assembly 3, and after passing through the free space, it is converted into a radio frequency signal by the glass antenna, and finally returns to the analyzer 5 for signal analysis.

[0050] In some embodiments, the transmitting assembly 3 has a transmitting port 30, and the transmitting end matrix switch 32 is electrically connected with the analyzer 5 through the transmitting port 30, one of the lines of the transmitting end matrix switch 32 is connected with the horizontal polarization transmitting antenna, and the other is connected with the vertical polarization transmitting antenna, and the polarization is switched by switching the two lines through the matrix switch, so that the transmitting port 30 can be electrically connected with the horizontal polarization line and the vertical polarization line respectively.

[0051] In some embodiments, the transmitting assembly 3 further includes a transmitting tower 34 and a height adjustment assembly 35; the height adjustment assembly 35 is disposed on one side of the transmitting tower 34 and distributed along the height direction of the transmitting tower 34; the dual-polarized transmitting antenna 31 and the transmitting matrix switch 32 are connected to the movable end of the height adjustment assembly 35. The height adjustment assembly 35 is provided to adjust the height of the transmitting matrix switch 32 and the dual-polarized antenna, so that the analyzer 5 can collect data of the antenna at different positions, simulating the antenna being installed at different heights on the vehicle.

[0052] In some embodiments, the transmitter matrix switch 32 has a horizontal polarization port 321 and a vertical polarization port 322, which are electrically connected to the transmitter port 30, respectively. In a single test, a test antenna 1 needs to collect data from both horizontal and vertical polarizations to complete a full test.

[0053] In some embodiments, the receiving component 4 includes a power supply component 45; the power supply component 45 is electrically connected to the receiving matrix switch 41. Preferably, the power supply component 45 is a 12V battery; in other equivalent embodiments, batteries of other capacities may also be selected.

[0054] Embodiment 1 of this utility model is as follows:

[0055] An antenna testing system includes a transmitting component 3, a receiving component 4, an analyzer 5, a control terminal 6, and at least two test antennas 1. The test antennas 1 are used to receive test signals emitted by the transmitting component 3. The transmitting component 3 and the receiving component 4 are communicatively connected to the control terminal 6, and both are electrically connected to the analyzer 5. The receiving component 4 includes a receiving matrix switch 41 and a receiving port 40. The receiving matrix switch 41 is electrically connected to the receiving port 40 and is used to switch the test antenna 1 electrically connected to the receiving port 40. The receiving port 40 is electrically connected to the receiving end of the analyzer 5. Preferably, the resistance of the load 42 is 50 ohms; the analyzer 5 is a vector network analyzer 5.

[0056] In this embodiment, the receiving component 4 further includes a rotating platform 43; the test antenna 1 and the receiving component 4 are respectively disposed on the rotating platform 43, and the rotation center points of the test antenna 1 and the rotating platform 43 are spaced apart.

[0057] In this embodiment, the receiver matrix switch 41 has two first interfaces 411 for electrical connection with the test antenna 1; the receiver matrix switch 41 includes a load 42; one first interface 411 is electrically connected to the receiver port 40 through the receiver matrix switch 41, and the other first interface 411 is electrically connected to the load 42 through the receiver matrix switch 41. Preferably, the resistance of the load 42 is 50 ohms.

[0058] In the embodiment, the receiving end matrix switch 41 has a second interface 412, and the test antenna 1 electrically connected with the receiving end matrix switch 41 is electrically connected with the rotating platform 43 through the second interface 412.

[0059] In the embodiment, the receiving assembly 4 further comprises a receiving end signal transmission module 44; the receiving end signal transmission module 44 is integrated in the receiving end matrix switch 41, the receiving end signal transmission module 44 is electrically connected with the rotating platform 43 through the receiving end matrix switch 41, and the receiving end signal transmission module 44 is in communication connection with the control terminal 6.

[0060] In the embodiment, the transmitting assembly 3 comprises a dual-polarized transmitting antenna 31 and a transmitting end matrix switch 32; the dual-polarized transmitting antenna 31 is electrically connected with the transmitting end matrix switch 32, and the transmitting end matrix switch 32 is used for switching the polarization of the dual-polarized transmitting antenna 31.

[0061] In the embodiment, the transmitting assembly 3 has a transmitting port 30; the transmitting end matrix switch 32 is electrically connected with the analyzer 5 through the transmitting port 30.

[0062] In the embodiment, the transmitting assembly 3 further comprises a transmitting tower 34 and a height adjusting assembly 35; the height adjusting assembly 35 is arranged on one side of the transmitting tower 34 and is distributed along the height direction of the transmitting tower 34; the dual-polarized transmitting antenna 31 and the transmitting end matrix switch 32 are connected with the movable end of the height adjusting assembly 35.

[0063] In the embodiment, the transmitting end matrix switch 32 has a horizontal polarization port 321 and a vertical polarization port 322, and the horizontal polarization port 321 and the vertical polarization port 322 are electrically connected with the transmitting port 30 respectively.

[0064] In the embodiment, the receiving assembly 4 comprises a power supply assembly 45; the power supply assembly 45 is electrically connected with the receiving end matrix switch 41.

[0065] The working principle of the utility model is that:

[0066] S1: taking the antenna data collected at 0° as an example, when the test starts, the dual-polarized transmitting antenna 31 is in a horizontal polarization state, the rotating platform 43 is accurately rotated to the 0° position and stopped; at this time, the receiving end matrix switch 41 controls the test antenna 1 to be electrically connected with the receiving port 40, and the test antenna 1 is electrically connected with the load 42; after receiving the information from the rotating platform 43, the control terminal 6 sends an instruction to the analyzer 5, and the analyzer 5 starts to collect the data of the antenna at the angle. After the data collection is completed and it is confirmed that there is no error, the control terminal 6 controls the rotating platform 43 to continue to rotate to the next target angle, i.e. the 1° position, and stop again; the foregoing steps are repeatedly executed until the rotating platform 43 is rotated according to the preset angle interval for one revolution, and all the required angle data are successfully collected, and all the collected data are fed back to the control terminal 6 by the analyzer 5.

[0067] S2: after receiving the data from the analyzer 5, the control terminal 6 sends an instruction to the transmitting end matrix switch 32 to control the dual-polarized transmitting antenna 31 to switch to a vertical polarization state, and the steps S1 are repeatedly executed until all the required angle data of the same test antenna 1 are collected.

[0068] S3: after receiving all the data, the control terminal sends a signal to the receiving end matrix switch 41, the receiving end matrix switch 41 switches the electrical connection relationship, i.e. the antenna that has been tested is electrically connected with the load 42, and the test antenna 1 is electrically connected with the receiving port 40, the steps S1 and S2 are repeatedly executed until all the test antennas 1 complete the data collection at the 0° direction.

[0069] It is worth noting that if the test antenna 1 is two, the horizontal polarization and vertical polarization data should be collected for each antenna respectively; the test antenna 1 in the utility model is installed on a car, especially on the car glass, and during the test process, the car should be placed on the rotating platform, and the test antenna 1 deviates from the center of the rotating platform.

[0070] In summary, the utility model provides an antenna test system, realizes the data collection of horizontal polarization and vertical polarization of multiple antennas in turn, and can realize multi-angle data collection, through the setting of the receiving end matrix switch and the transmitting end matrix switch, realizes the automatic switching of the antenna and the analyzer receiving port, and realizes the automatic polarization switching of the dual-polarized transmitting antenna, compared with the prior art, can realize the full automation data collection of the glass antenna, reduces the operation difficulty, improves the accuracy of the detection result and the fault tolerance, greatly improves the test efficiency, and can reduce the wear of the equipment.

[0071] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the present application specification and drawings is also included in the patent protection scope of the present application.

Claims

1. An antenna test system, characterized by, The system comprises a transmitting assembly, a receiving assembly, an analyzer, a control terminal and at least two test antennas; The transmitting assembly and the receiving assembly are respectively connected with the control terminal, and the transmitting assembly and the receiving assembly are respectively connected with the analyzer; The receiving assembly comprises a receiving end matrix switch and a receiving port, the receiving end matrix switch is connected with the receiving port, and the receiving end matrix switch is used for switching the test antenna connected with the receiving port.

2. An antenna test system according to claim 1, wherein, The receiving assembly further comprises a rotating platform; The test antenna and the receiving assembly are respectively arranged on the rotating platform, and the test antenna is arranged at intervals with the rotating center point of the rotating platform.

3. The antenna test system of claim 1, wherein, The receiving end matrix switch has a plurality of first interfaces connected with the test antennas one by one; At least one first interface is connected with the receiving port.

4. An antenna test system according to claim 3, wherein, The receiving end matrix switch comprises a load; The rest of the first interfaces are respectively connected with the corresponding loads.

5. The antenna test system of claim 2, wherein, The receiving end matrix switch has a second interface, and the test antenna connected with the receiving end matrix switch is connected with the rotating platform through the second interface.

6. An antenna test system according to claim 5, wherein, The receiving assembly further comprises a receiving end signal transmission module; The receiving end signal transmission module is integrated in the receiving end matrix switch, the receiving end signal transmission module is connected with the rotating platform through the receiving end matrix switch, and the receiving end signal transmission module is connected with the control terminal.

7. The antenna test system of claim 1, wherein, The transmitting assembly comprises a dual-polarized transmitting antenna and a transmitting end matrix switch; The dual-polarized transmitting antenna is connected with the transmitting end matrix switch, and the transmitting end matrix switch is used for switching the polarization of the dual-polarized transmitting antenna.

8. An antenna test system according to claim 7, wherein, The transmitting assembly has a transmitting port; The transmitting end matrix switch is connected with the analyzer through the transmitting port.

9. The antenna test system of claim 7, wherein, The transmitting assembly further comprises a transmitting tower and a height adjusting assembly; The height adjusting assembly is arranged on one side of the transmitting tower and is distributed along the height direction of the transmitting tower; The dual-polarized transmitting antenna and the transmitting end matrix switch are connected with the movable end of the height adjusting assembly.

10. The antenna test system of claim 7, wherein, The transmitting end matrix switch has a horizontal polarization port and a vertical polarization port.

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