CN105738738A - Radio frequency test device and system - Google Patents
Radio frequency test device and system Download PDFInfo
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- CN105738738A CN105738738A CN201610109206.7A CN201610109206A CN105738738A CN 105738738 A CN105738738 A CN 105738738A CN 201610109206 A CN201610109206 A CN 201610109206A CN 105738738 A CN105738738 A CN 105738738A
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- 238000012360 testing method Methods 0.000 title claims abstract description 138
- 230000008054 signal transmission Effects 0.000 claims abstract description 98
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000011056 performance test Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a radio frequency test device and a system. In the embodiment of the invention, a radio frequency connector is adopted to receive a radiofrequency signal transmitted by a mobile terminal, and the radio frequency signal is transmitted to a first attenuator; the first attenuator transmits the radiofrequency signal to a signal transmission circuit which transmits the radiofrequency signal to a test unit; the test unit performs testing on the radio frequency parameters of the mobile terminal according to the radiofrequency signal in order to obtain the test result; an attenuator is added between the radio frequency connector and the signal transmission circuit; the application of the attenuator can buffer the characteristic of impedance change, reduces the interference on the radio frequency connector impedance by the signal transmission circuit, and enables the impedance of the radio frequency connector to be consistent with the impedance of the intelligent terminal radio frequency system as much as possible. Compared with the prior art, the radio frequency test device and system can improve the accuracy of the intelligent terminal radio frequency performance test, and thus improve the production efficiency of the intelligent terminal.
Description
Technical field
The present invention relates to radio frequency arts, be specifically related to a kind of radio frequency testing device and system.
Background technology
Along with the development of intelligent terminal, intelligent terminal can compatible function get more and more, and not only abundant user's life, also brings advantage to the user.
And it is known that radio-frequency performance is the important performance of intelligent terminal, it concerns the quality of radio communication of intelligent terminal, therefore, in order to ensure intelligent terminal radio-frequency performance or ensure intelligent terminal radio frequency system can concordance, before intelligent terminal is dispatched from the factory, it is necessary to intelligent terminal is carried out RF calibration test.
For ensureing the accuracy of RF calibration test, it is necessary to the link impedance of calibration test system keeps consistent with the radio system impedance of intelligent terminal, namely ensure that in calibration test system, the impedance of radio frequency connector is identical with the radio system impedance of intelligent terminal.Such as, the impedance of mobile phone radio frequency system is generally 50 ohm, then the impedance of the radio frequency connector being accomplished by calibration test system is also 50 ohm, so could reduce test error.
But, in reality is tested, owing to calibration test system can exist between radio frequency connector and tester signal transmission line, such as multistage coaxial line, therefore, this signal transmission line can affect the resistance value that radio frequency connects, and causes the impedance of impedance deviation intelligent terminal's radio system of radio frequency connector, and then causes that the radio-frequency performance test of intelligent terminal is inaccurate.
Summary of the invention
The embodiment of the present invention provides a kind of radio frequency testing device and system, it is possible to solves intelligent terminal's radio-frequency performance and tests inaccurate technical problem.
The embodiment of the present invention provides a kind of radio frequency testing device, including: radio frequency connector, the first attenuator, signal transmission line and test cell；
Described radio frequency connector, for receiving the radiofrequency signal that mobile terminal sends, and by described radio signal transmission to described first attenuator；
Described first attenuator, for by described radio signal transmission to signal transmission line；
Described signal transmission line, for giving described test cell by described radio signal transmission；
Described test cell, for testing the radio frequency parameter of described mobile terminal according to described radiofrequency signal, to obtain test result.
Further, the radio frequency testing device of the embodiment of the present invention also includes: the second attenuator between described signal transmission line and test cell；
Described signal transmission line, specifically for giving described test cell by described second attenuator by described radio signal transmission.
Further, the decibels of described first attenuator is between 3dB to 6dB.
Further, the decibels of described second attenuator is between 3dB to 6dB.
Further, described signal transmission line specifically includes: radio-frequency transmission line；
One end of described radio-frequency transmission line is connected with described first attenuator, the other end is connected with described test cell, for giving described test cell by the radio signal transmission of described first attenuator output.
Further, described signal transmission line specifically includes: multistage radio-frequency transmission line and at least one rf adapter；
Described multistage radio-frequency transmission line is sequentially connected in series, and by a described rf adapter series connection between adjacent two sections of radio-frequency transmission lines.
Further, embodiment of the present invention radio frequency testing device also includes: RF calibration unit；
Described RF calibration unit, for obtaining the error information of described radio frequency parameter according to described test result, and is transferred to described mobile terminal by described error information, so that corresponding radio frequency parameter is compensated by described mobile terminal according to described error information.
Accordingly, the embodiment of the present invention additionally provides a kind of radio frequency test system, including: mobile terminal and radio frequency testing device；
Described radio frequency side device includes: radio frequency connector, the first attenuator, signal transmission line and test cell；
Wherein, described radio frequency connector, for receiving the radiofrequency signal that described mobile terminal sends, and by described radio signal transmission to described first attenuator；
Described first attenuator, for by described radio signal transmission to signal transmission line；
Described signal transmission line, for giving described test cell by described radio signal transmission；
Described test cell, for testing the radio frequency parameter of described mobile terminal according to described radiofrequency signal, to obtain test result.
Further, described radio frequency testing device also includes: the second attenuator between described signal transmission line and test cell；
Described signal transmission line, specifically for giving described test cell by the second attenuator by described radio signal transmission.
Further, described radio frequency testing device also includes: RF calibration unit；
Described RF calibration unit, for obtaining the error information of described radio frequency parameter according to described test result, and is transferred to described mobile terminal by described error information, so that corresponding radio frequency parameter is compensated by described mobile terminal according to described error information.
The embodiment of the present invention adopts radio frequency connector to receive the radiofrequency signal that mobile terminal sends, and by this radio signal transmission to the first attenuator, then, by the first attenuator by this radio signal transmission to signal transmission line, this test cell is given by this radio signal transmission by signal transmission line, the radio frequency parameter of this mobile terminal is tested according to this radiofrequency signal by test cell, to obtain test result；The program inserts attenuator between radio frequency connector and signal transmission line, application attenuator can cushion the characteristic of impedance variation, reduce the signal transmission line impact on radio frequency connector impedance, the impedance making radio frequency connector keeps consistent with the impedance of intelligent terminal's radio system as far as possible, in terms of existing technologies, the accuracy of intelligent terminal's radio-frequency performance test can be improved, thus improve the production efficiency of intelligent terminal.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of radio frequency testing device that the embodiment of the present invention one provides；
Fig. 2 is the structural representation of the another kind of radio frequency testing device that the embodiment of the present invention one provides；
Fig. 3 is the structural representation of another radio frequency testing device that the embodiment of the present invention one provides；
Fig. 4 is the structural representation of a kind of radio frequency test system that the embodiment of the present invention one provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The embodiment of the present invention provides a kind of radio frequency testing device and system.To be described in detail respectively below.
Embodiment one,
Structural representation with reference to a kind of radio frequency testing device that Fig. 1, Fig. 1 provide for the embodiment of the present invention.This radio frequency testing device 10 includes: radio frequency connector the 101, first attenuator 102, signal transmission line 103 and test cell 104, as follows:
Radio frequency connector 101, for receiving the radiofrequency signal that mobile terminal sends, and by this radio signal transmission to this first attenuator 102；
First attenuator 102, for by this radio signal transmission to signal transmission line 103；
Signal transmission line 103, for giving this test cell 104 by this radio signal transmission；
Test cell 104, for testing the radio frequency parameter of this mobile terminal according to this radiofrequency signal, to obtain test result.
Wherein, the decibels of the first attenuator 102 can have multiple, can set according to the actual requirements, preferably, the decibels of the first attenuator is between 3dB to 6dB, and the attenuator at the decibels selected in this interval can reduce the signal transmission line 103 impact on radio frequency connector 101 impedance to greatest extent.Additionally, the first attenuator 102 impedance operator ohmage can set according to the impedance of mobile terminal radio frequency system, such as, it is possible to the impedance with mobile terminal radio frequency system is identical.
Such as, when to the smart mobile phone test that radio system is 50 ohm, it is possible to select decibels at 3dB to 6dB, and the attenuator that ohmage is 50 ohm.
Specifically, signal transmission line 103 can have multiple, can select according to actual test environment or demand, such as, this signal transmission line 103 can include radio-frequency transmission line (such as coaxial line), one end of this radio-frequency transmission line is connected with this first attenuator, the other end is connected with this test cell, for giving this test cell by the radio signal transmission of this first attenuator output；Again such as, signal transmission line 103 can be made up of multistage radio-frequency transmission line and at least one rf adapter；Multistage radio-frequency transmission line is sequentially connected in series, and by this rf adapter series connection between adjacent two sections of radio-frequency transmission lines, wherein the quantity of radio-frequency transmission line can according to actual but environment or requirements set, and the quantity of rf adapter can according to the quantity set of radio-frequency transmission line.
Alternatively, in order to improve the accuracy that radio frequency system can test further, the present embodiment can also arrange an attenuator between signal transmission line 103 and test cell 104, to reduce the test cell interference to radio frequency connector impedance, improves the accuracy that radio frequency system can test；With reference to Fig. 2, namely this radio frequency testing device can also include: the second attenuator 105 between this signal transmission line 103 and test cell 104；Now, signal transmission line 103, specifically for giving this test cell 104 by this second attenuator 105 by this radio signal transmission.
Equally, the decibels of the second attenuator 102 can have multiple, can set according to the actual requirements, preferably, the decibels of the second attenuator is between 3dB to 6dB, and the attenuator at the decibels selected in this interval can reduce the test cell 104 impact on radio frequency connector 101 impedance to greatest extent.Additionally, the second attenuator 102 impedance operator ohmage can set according to the impedance of mobile terminal radio frequency system, such as, it is possible to the impedance with mobile terminal radio frequency system is identical.
Preferably, in the present embodiment test cell 104 can be radio frequency testing instrument or other there is the equipment of radio frequency testing function.
Alternatively, in order to the radio frequency of intelligent terminal being calibrated, to ensure that intelligent terminal can be normally carried out radio communication, with reference to Fig. 3 (radio frequency testing device for described in Fig. 1), the radio frequency testing device of the present embodiment can also include: RF calibration unit 106；
RF calibration unit 106, it is possible to for obtaining the error information of this radio frequency parameter according to this test result, and this error information is transferred to this mobile terminal, so that corresponding radio frequency parameter is compensated by this mobile terminal according to this error information.
Wherein, radio frequency parameter can be transmitting power, phase error, frequency error, radio spectrum etc..
When being embodied as, above unit or device can realize as independent entity, it is also possible to carry out combination in any, realize as same or several entities, and being embodied as of above unit referring to embodiment of the method above, can not repeat them here.
As from the foregoing, the radio frequency testing device of the embodiment of the present invention receives, by radio frequency connector 101, the radiofrequency signal that mobile terminal sends, and by this radio signal transmission to the first attenuator 102, then, by the first attenuator 102 by this radio signal transmission to signal transmission line 103, given this test cell 104 by signal transmission line 103 by this radio signal transmission, test cell 104 according to this radiofrequency signal, the radio frequency parameter of this mobile terminal is tested, to obtain test result；The program inserts attenuator between radio frequency connector 101 and signal transmission line 103, application attenuator can cushion the characteristic of impedance variation, reduce the signal transmission line impact on radio frequency connector 101 impedance, the impedance making radio frequency connector 101 keeps consistent with the impedance of intelligent terminal's radio system as far as possible, in terms of existing technologies, the accuracy of intelligent terminal's radio-frequency performance test can be improved, thus improve the production efficiency of intelligent terminal.
Embodiment two,
Correspondingly, with reference to Fig. 4, embodiments providing a kind of radio frequency test system, this radio frequency test system may include that the radio frequency testing device 10 described in mobile terminal 20 and embodiment one；
Wherein, radio frequency testing device 10 includes: radio frequency connector the 101, first attenuator 102, signal transmission line 103 and test cell 104, as follows:
Radio frequency connector 101, for receiving the radiofrequency signal that mobile terminal 20 sends, and by this radio signal transmission to this first attenuator 102；
First attenuator 102, for by this radio signal transmission to signal transmission line 103；
Signal transmission line 103, for giving this test cell 104 by this radio signal transmission；
Test cell 104, for testing the radio frequency parameter of this mobile terminal according to this radiofrequency signal, to obtain test result.
Specifically, radio frequency connector 101 can be connected with the radio frequency interface of mobile terminal 20, to receive the radiofrequency signal that mobile terminal 20 sends.
Wherein, the decibels of the first attenuator 102 can have multiple, can set according to the actual requirements, preferably, the decibels of the first attenuator is between 3dB to 6dB, and the attenuator at the decibels selected in this interval can reduce the signal transmission line 103 impact on radio frequency connector 101 impedance to greatest extent.Additionally, the first attenuator 102 impedance operator ohmage can set according to the impedance of mobile terminal radio frequency system, such as, it is possible to the impedance with mobile terminal radio frequency system is identical.
Specifically, signal transmission line 103 can have multiple, can select according to actual test environment or demand, such as, this signal transmission line 103 can include radio-frequency transmission line (such as coaxial line), one end of this radio-frequency transmission line is connected with this first attenuator, the other end is connected with this test cell, for giving this test cell by the radio signal transmission of this first attenuator output；Again such as, signal transmission line 103 can be made up of multistage radio-frequency transmission line and at least one rf adapter；Multistage radio-frequency transmission line is sequentially connected in series, and by this rf adapter series connection between adjacent two sections of radio-frequency transmission lines, wherein the quantity of radio-frequency transmission line can according to actual but environment or requirements set, and the quantity of rf adapter can according to the quantity set of radio-frequency transmission line.
Alternatively, in order to improve the accuracy that radio frequency system can test further, the present embodiment can also arrange an attenuator between signal transmission line 103 and test cell 104, to reduce the test cell interference to radio frequency connector impedance, improves the accuracy that radio frequency system can test；Namely this radio frequency testing device can also include: the second attenuator between this signal transmission line 103 and test cell 104；Now, signal transmission line 103, specifically for giving this test cell 104 by this second attenuator by this radio signal transmission.
Equally, the decibels of the second attenuator 102 can have multiple, can set according to the actual requirements, preferably, the decibels of the second attenuator is between 3dB to 6dB, and the attenuator at the decibels selected in this interval can reduce the test cell 104 impact on radio frequency connector 101 impedance to greatest extent.Additionally, the second attenuator 102 impedance operator ohmage can set according to the impedance of mobile terminal radio frequency system, such as, it is possible to the impedance with mobile terminal radio frequency system is identical.
Alternatively, in order to can the radio frequency of intelligent terminal be calibrated, to ensure that intelligent terminal can be normally carried out radio communication, the radio frequency testing device of the present embodiment can also include: RF calibration unit；
RF calibration unit, it is possible to for obtaining the error information of this radio frequency parameter according to this test result, and this error information is transferred to this mobile terminal 20, so that corresponding radio frequency parameter is compensated by this mobile terminal according to this error information.
As from the foregoing, the radio frequency test system of the embodiment of the present invention receives, by radio frequency connector 101, the radiofrequency signal that mobile terminal 20 sends, and by this radio signal transmission to the first attenuator 102, then, by the first attenuator 102 by this radio signal transmission to signal transmission line 103, given this test cell 104 by signal transmission line 103 by this radio signal transmission, test cell 104 according to this radiofrequency signal, the radio frequency parameter of this mobile terminal is tested, to obtain test result；The program inserts attenuator between radio frequency connector 101 and signal transmission line 103, application attenuator can cushion the characteristic of impedance variation, reduce the signal transmission line impact on radio frequency connector 101 impedance, the impedance making radio frequency connector 101 keeps consistent with the impedance of intelligent terminal's radio system as far as possible, in terms of existing technologies, the accuracy of intelligent terminal's radio-frequency performance test can be improved, thus improve the production efficiency of intelligent terminal.
A kind of the radio frequency testing device above embodiment of the present invention provided and system are described in detail, principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for those skilled in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a radio frequency testing device, it is characterised in that including: radio frequency connector, the first attenuator, signal transmission line and test cell；
Described radio frequency connector, for receiving the radiofrequency signal that mobile terminal sends, and by described radio signal transmission to described first attenuator；
Described first attenuator, for by described radio signal transmission to signal transmission line；
Described signal transmission line, for giving described test cell by described radio signal transmission；
Described test cell, for testing the radio frequency parameter of described mobile terminal according to described radiofrequency signal, to obtain test result.
2. radio frequency testing device as claimed in claim 1, it is characterised in that also include: the second attenuator between described signal transmission line and test cell；
Described signal transmission line, specifically for giving described test cell by described second attenuator by described radio signal transmission.
3. radio frequency testing device as claimed in claim 1, it is characterised in that the decibels of described first attenuator is between 3dB to 6dB.
4. radio frequency testing device as claimed in claim 2, it is characterised in that the decibels of described second attenuator is between 3dB to 6dB.
5. radio frequency testing device as claimed in claim 1, it is characterised in that described signal transmission line specifically includes: radio-frequency transmission line；
One end of described radio-frequency transmission line is connected with described first attenuator, the other end is connected with described test cell, for giving described test cell by the radio signal transmission of described first attenuator output.
6. radio frequency testing device as claimed in claim 1, it is characterised in that described signal transmission line specifically includes: multistage radio-frequency transmission line and at least one rf adapter；
Described multistage radio-frequency transmission line is sequentially connected in series, and by a described rf adapter series connection between adjacent two sections of radio-frequency transmission lines.
7. the radio frequency testing device as described in any one of claim 1-6, it is characterised in that also include: RF calibration unit；
Described RF calibration unit, for obtaining the error information of described radio frequency parameter according to described test result, and is transferred to described mobile terminal by described error information, so that corresponding radio frequency parameter is compensated by described mobile terminal according to described error information.
8. a radio frequency test system, it is characterised in that including: mobile terminal and radio frequency testing device；
Described radio frequency side device includes: radio frequency connector, the first attenuator, signal transmission line and test cell；
Wherein, described radio frequency connector, for receiving the radiofrequency signal that described mobile terminal sends, and by described radio signal transmission to described first attenuator；
Described first attenuator, for by described radio signal transmission to signal transmission line；
Described signal transmission line, for giving described test cell by described radio signal transmission；
Described test cell, for testing the radio frequency parameter of described mobile terminal according to described radiofrequency signal, to obtain test result.
9. radio frequency test system as claimed in claim 8, it is characterised in that described radio frequency testing device also includes: the second attenuator between described signal transmission line and test cell；
Described signal transmission line, specifically for giving described test cell by the second attenuator by described radio signal transmission.
10. radio frequency test system as claimed in claim 8 or 9, it is characterised in that described radio frequency testing device also includes: RF calibration unit；
Described RF calibration unit, for obtaining the error information of described radio frequency parameter according to described test result, and is transferred to described mobile terminal by described error information, so that corresponding radio frequency parameter is compensated by described mobile terminal according to described error information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610109206.7A CN105738738B (en) | 2016-02-25 | 2016-02-25 | A kind of radio frequency testing device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610109206.7A CN105738738B (en) | 2016-02-25 | 2016-02-25 | A kind of radio frequency testing device and system |
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| CN105738738A true CN105738738A (en) | 2016-07-06 |
| CN105738738B CN105738738B (en) | 2018-09-21 |
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| CN109120358A (en) * | 2018-06-13 | 2019-01-01 | 北京星网锐捷网络技术有限公司 | Test method, mobile terminal, surveying device and the system of radio frequency signal |
| CN112491436A (en) * | 2019-09-12 | 2021-03-12 | 瑞昱半导体股份有限公司 | Radio frequency circuit |
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| CN105738738B (en) | 2018-09-21 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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