CN212381261U - Test system for radiation performance of mobile phone - Google Patents
Test system for radiation performance of mobile phone Download PDFInfo
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- CN212381261U CN212381261U CN202020689971.2U CN202020689971U CN212381261U CN 212381261 U CN212381261 U CN 212381261U CN 202020689971 U CN202020689971 U CN 202020689971U CN 212381261 U CN212381261 U CN 212381261U
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Abstract
The utility model discloses a test system for cell-phone radiation performance, include: an anechoic chamber; the object placing table is arranged in the anechoic chamber; the device comprises a circular track and a polarization rotating shaft, wherein the circular track is arranged by taking the object placing table to be tested as the center of a circle, the polarization rotating shaft is arranged on the circular track and connected with a gain antenna, and the polarization rotating shaft can drive the gain antenna to rotate along the circular track; the simulation base station is connected with a signal of the object to be measured placed on the object to be measured placing table; the signal analysis unit is in signal connection with the anechoic chamber and can be used for analyzing the radiation signal of the object to be detected; the method comprises the step of testing the value of the space distribution interval of the object to be tested. The system can test the radiation performance of the mobile phone in a full-automatic environment, reduce interference of human factors and realize omnibearing test.
Description
Technical Field
The utility model relates to a test system especially relates to a test system for cell-phone radiation performance.
Background
At present, there are two main methods for investigating the radiation performance of a mobile phone: one method is to judge the radiation performance of the antenna, and is a traditional antenna test method at present, which is called passive test; the other is to test the radiation power and the receiving sensitivity of the mobile phone in a special microwave darkroom, which is called active test. The passive test focuses on investigating the radiation performance of the mobile phone from the aspects of the radiation parameters of the antenna, such as gain, efficiency, a directional diagram and the like of the mobile phone antenna. Although the passive test considers the influence of the whole machine environment (such as devices around the antenna, opening and closing the cover) on the antenna performance, the final radiation power and receiving sensitivity after the antenna is matched with the whole machine cannot be directly known from passive test data, and the test data is not very intuitive. The active test focuses on investigating the radiation performance of the mobile phone from the aspects of the transmission power and the receiving sensitivity of the whole mobile phone, and can more directly reflect the radiation performance of the whole mobile phone. In active testing, the placement position of the device under test, the distance between the device under test and the antenna, and the like directly affect the test result. With the diversification of the devices to be tested, the existing test system can not meet the test requirements.
Disclosure of Invention
The utility model aims at providing a test system for mobile phone radiation performance, this system can realize testing mobile phone radiation performance under full-automatic environment, reduces human factor's interference, realizes the omnidirectional test.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a test system for radiation performance of a handset, comprising:
an anechoic chamber;
the object placing table is arranged in the anechoic chamber;
the device comprises a circular track and a polarization rotating shaft, wherein the circular track is arranged by taking the object placing table to be tested as the center of a circle, the polarization rotating shaft is arranged on the circular track and connected with a gain antenna, and the polarization rotating shaft can drive the gain antenna to rotate along the circular track;
the simulation base station is connected with a signal of the object to be measured placed on the object to be measured placing table;
the signal analysis unit is in signal connection with the anechoic chamber and can be used for analyzing the radiation signal of the object to be detected; the method comprises the step of testing the value of the space distribution interval of the object to be tested.
In the above technical solution, the bottom end of the polarization rotating shaft is provided with a slider matched with the circular track, and the slider is connected with the driving mechanism and used for driving the slider to rotate along the circular track.
In the technical scheme, a sliding groove is formed in the radial direction of the table board of the object placing table, a sliding strip is arranged in the sliding groove, an object placing groove is formed in one end, deviating from the center of the table board, of the sliding strip, and the sliding strip can slide along the sliding groove so as to adjust the distance between the object to be measured and the gain antenna, wherein the object to be measured is arranged in the object placing groove.
In the above technical scheme, the table top is provided with scale marks along the extending direction of the sliding groove.
In the above technical solution, the gain antenna is disposed opposite to the table top, and the center of the gain antenna and the table top are located on the same horizontal plane.
In the above technical solution, the signal analysis unit includes a network analyzer, and the network analyzer can adjust to perform multi-channel and multi-band simultaneous measurement; and obtaining the numerical value of the spatial distribution interval of the object to be detected.
In the technical scheme, the device also comprises a computer, a measuring instrument and a controller; the computer is connected with the measuring instrument and the controller, and the measuring instrument is respectively connected with the gain antenna and the object to be measured.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. in the utility model, the object placing table and the gain antenna are arranged in the anechoic chamber, so as to realize the simulation of the test environment; and the object placing table is used as a circle center to be provided with a circular track, and the gain antenna is arranged on the circular track through the polarization rotating shaft, so that the gain antenna can rotate along the circular track, the gain antenna can be opposite to each surface of the object to be tested, and the omnibearing test is realized.
2. The slide block at the lower end of the polarization rotating shaft is connected with the driving mechanism, and is controlled by the driving mechanism, so that automatic adjustment is realized, interference of human factors is reduced, and the accuracy of a test result is ensured.
3. The radial direction of the table board of the object placing table is provided with a sliding groove, a sliding strip is arranged in the sliding groove, one end, away from the center of the table board, of the sliding strip is provided with an object placing groove, and the position of the object placing groove is adjusted through the matching of the sliding groove and the sliding strip, so that the distance between the object to be tested and the gain antenna is achieved, and the requirements of different tests are met.
Drawings
FIG. 1 is a schematic diagram of a testing system of the present invention;
FIG. 2 is a schematic view of the placement platform and the booster antenna for the device under test of the present invention;
FIG. 3 shows the gain values of the distribution intervals of the analyte portion generated by the network analyzer.
Wherein: 1. an anechoic chamber; 2. placing the object to be tested on a table; 3. a circular track; 4. a gain antenna; 5. polarizing the rotating shaft; 6. simulating a base station; 7. a signal analysis unit; 8. a chute; 9. a slide bar; 10. and an object placing groove to be tested.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows: referring to fig. 1 to 3, a system for testing radiation performance of a mobile phone includes:
an anechoic chamber 1;
an object placing table 2 provided in the anechoic chamber 1;
the device comprises a circular track 3 and a polarization rotating shaft 5, wherein the circular track 3 is arranged by taking the object placing table 2 to be tested as a circle center, the polarization rotating shaft 5 is arranged on the circular track 3 and connected with a gain antenna 4, and the polarization rotating shaft 5 can drive the gain antenna 4 to rotate along the circular track 3;
the simulation base station 6 is connected with a signal of the object to be tested placed on the object to be tested placing table 2;
the signal analysis unit 7 is in signal connection with the anechoic chamber 1, and the signal analysis unit 7 can be used for analyzing the radiation signal of the object to be detected; the method comprises the step of testing the value of the space distribution interval of the object to be tested.
The simulation of the test environment is realized by arranging the object placing table 2 and the gain antenna 4 in the anechoic chamber 1 relatively; and use the thing of awaiting measuring to place platform 2 and be provided with circular orbit 3 as the centre of a circle, gain antenna 4 sets up on circular orbit 3 through polarization pivot 5 to make gain antenna 4 can follow circular orbit 3 rotary motion, guarantee that gain antenna 4 can be relative with each face of the thing of awaiting measuring, realize omnidirectional test.
In order to realize the automatic omnibearing test, the bottom end of the polarization rotating shaft 5 is provided with a sliding block matched with the circular track 3, and the sliding block is connected with a driving mechanism and used for driving the sliding block to rotate along the circular track 3.
Referring to fig. 2, a sliding groove 8 is arranged along the radial direction of the table top of the object placing table 2, a sliding bar 9 is arranged in the sliding groove 8, an object placing groove 10 is arranged at one end of the sliding bar 9, which is far away from the center of the table top, and the sliding bar 9 can slide along the sliding groove 8 so as to adjust the distance between the object to be tested, which is arranged in the object placing groove 10, and the gain antenna 4, so that the object to be tested can meet the tests of different requirements.
In a preferred test mode, scale marks are arranged on the table top along the extending direction of the sliding chute 8. The setting of scale mark can make the regulation of draw runner 9 more controllable, directly perceived.
The booster antenna 4 is arranged opposite to the table top, the center of the booster antenna 4 and the table top are located on the same horizontal plane, and specifically, the height of the booster antenna in the vertical direction can be set to be 1.2 m.
The signal analysis unit 7 comprises a network analyzer which can adjust to perform multi-channel and multi-band simultaneous measurement; and obtaining the numerical value of the spatial distribution interval of the object to be detected.
The device also comprises a computer, a measuring instrument and a controller; the computer is connected with the measuring instrument and the controller, and the measuring instrument is respectively connected with the gain antenna 4 and the object to be measured.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A test system for radiation performance of a mobile phone, comprising:
an anechoic chamber;
the object placing table is arranged in the anechoic chamber;
the device comprises a circular track and a polarization rotating shaft, wherein the circular track is arranged by taking the object placing table to be tested as the center of a circle, the polarization rotating shaft is arranged on the circular track and connected with a gain antenna, and the polarization rotating shaft can drive the gain antenna to rotate along the circular track;
the simulation base station is connected with a signal of the object to be measured placed on the object to be measured placing table;
the signal analysis unit is in signal connection with the anechoic chamber and can be used for analyzing the radiation signal of the object to be detected; the method comprises the step of testing the value of the space distribution interval of the object to be tested.
2. The system for testing the radiation performance of the mobile phone according to claim 1, wherein: the bottom end of the polarization rotating shaft is provided with a sliding block matched with the circular track, and the sliding block is connected with a driving mechanism and used for driving the sliding block to rotate along the circular track.
3. The system for testing the radiation performance of the mobile phone according to claim 1, wherein: the radial direction of the table board of the object placing table is provided with a sliding groove, a sliding strip is arranged in the sliding groove, one end, deviating from the center of the table board, of the sliding strip is provided with an object placing groove, and the sliding strip can slide along the sliding groove to adjust the distance between the object to be measured and the gain antenna, wherein the object to be measured is arranged in the object placing groove.
4. The system for testing the radiation performance of the mobile phone according to claim 3, wherein: and scale marks are arranged on the table top along the extending direction of the sliding groove.
5. The system for testing the radiation performance of the mobile phone according to claim 3, wherein: the gain antenna is arranged opposite to the table top, and the center of the gain antenna and the table top are positioned on the same horizontal plane.
6. The system for testing the radiation performance of the mobile phone according to claim 1, wherein: the signal analysis unit comprises a network analyzer which can adjust to perform multi-channel and multi-band simultaneous measurement; and obtaining the numerical value of the spatial distribution interval of the object to be detected.
7. The system for testing the radiation performance of the mobile phone according to claim 1, wherein: the device also comprises a computer, a measuring instrument and a controller; the computer is connected with the measuring instrument and the controller, and the measuring instrument is respectively connected with the gain antenna and the object to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689971.2U CN212381261U (en) | 2020-04-29 | 2020-04-29 | Test system for radiation performance of mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689971.2U CN212381261U (en) | 2020-04-29 | 2020-04-29 | Test system for radiation performance of mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212381261U true CN212381261U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020689971.2U Active CN212381261U (en) | 2020-04-29 | 2020-04-29 | Test system for radiation performance of mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212381261U (en) |
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2020
- 2020-04-29 CN CN202020689971.2U patent/CN212381261U/en active Active
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