CN203368490U - Wireless radio frequency index test system - Google Patents
Wireless radio frequency index test system Download PDFInfo
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- CN203368490U CN203368490U CN2013204444996U CN201320444499U CN203368490U CN 203368490 U CN203368490 U CN 203368490U CN 2013204444996 U CN2013204444996 U CN 2013204444996U CN 201320444499 U CN201320444499 U CN 201320444499U CN 203368490 U CN203368490 U CN 203368490U
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Abstract
The utility model provides a wireless radio frequency index test system comprising a shielding box used for placing a device to be measured, wherein a test antenna is arranged in the shielding box and is connected with a radio frequency parameter test instrument, and the radio frequency parameter test instrument is connected with a computer which is connected with the device to be measured. The wireless radio frequency index test system is characterized by simplified test processes, saved cost of test clamp production, saved test cost, realization of simple test operation which a tester can conveniently grasp in a skilled way, high test speed, improved test efficiency, and stable and reliable test results.
Description
Technical field
The utility model relates to a kind of test macro of wireless radio frequency index.
Background technology
To thering is the product of less radio-frequency function, while dispatching from the factory, generally need to be tested the radio frequency parameter index of the transmitter and receiver of product, to verify its performance, described radio frequency parameter comprises: the transmitting power of product, signal spectrum, frequency error, EVM(error vector magnitude).The production test flow process of product refers to Fig. 1, product needs to carry out two step tests before dispatching from the factory: one, wireless board level test, two, terminal system test, carry out the wireless radio frequency index test by wireless plate test, by the terminal system test, carries out the radio throughput test.
Refer to Fig. 2, existing wireless board level testing system comprises: test product 1 ', radio frequency parameter tester 2 ', computer 3 ', test fixture 4 ', shielded box 5 '.While carrying out the wireless radio frequency index test, must disconnect the antenna 6 ' of test product, test product is fixed on test fixture 4 ' and is placed in shielded box 5 ', radio frequency parameter tester 2 ' is connected on the test fixture 4 ' in shielded box 5 ' by the radio-frequency (RF) coaxial line, the radio circuit TX of test product 1 ', test point 7 ' the thimble of RX path pushes up on test fixture 4 ', then be connected to radio frequency parameter tester 2 ' by the radio-frequency (RF) coaxial line, this radio frequency parameter tester 2 ' is connected with computer 3 ', the testing software provided by radio frequency parameter tester 2 ' producer is installed on described computer 3 '.During test, move on computers testing software the wireless parameter index of product is tested.
Existing wireless plate test macro exists following not enough:
Need to disconnect antenna while 1, testing and connect, the subtest fixture carries out bare board testing, after recording wireless radio frequency index, then, by the sky wire bonding, just can carry out follow-up terminal system test, flow process complexity; If continuous Kaitian line, radiofrequency signal can be shunted two-way, and wherein a road is to the receiving terminal of test fixture, and launch through antenna end on another road, affects test result, tests inaccurate;
2, existing wireless board level test need to additionally be done the test fixture that subtest is used, and increases testing cost.
Publication number is 101090553, open day for the patent of invention of 2007-12-19, a kind of radio terminal performance test device is disclosed, its tester connects test product by wired mode, the antenna modeling base station transmit signals of shielded box and generation interference signal, product is in the index of accepting test products under base station signal or noisy environment, and this apparatus structure and annexation thereof only can realize power consumption test and heat test.And in the utility model test macro, the antenna by product to be measured self sends radiofrequency signal, antenna in shielded box is connected with the radio frequency parameter tester, antenna in shielded box receives the radiofrequency signal of product to be measured by coupled modes, then pass to the radio frequency parameter tester and carry out test analysis, the index of measurement comprises: transmitting power, signal spectrum, frequency error, EVM etc.Therefore, disclosed a kind of radio terminal performance test device, can't solve the wireless radio frequency index test problem the utility model proposes.
Publication number is 202949431U, open day is a kind of mobile phone radio frequency HIST of utility model patent system on May 22nd, 2013, and described system comprises shielded box, mobile phone fixed station, main antenna, potato masher antenna, comprehensive test instrument, interference source, connection cable and computer; Described fixed station, main antenna, potato masher antenna are arranged in shielded box, and comprehensive test instrument is connected with potato masher antenna with main antenna respectively by RF cable with interference source; And be connected to computer by the GPIB control line; Described comprehensive test instrument has many, and communicates by different antennas and tested mobile phone.This system comprehensive test instrument and mobile phone connect, uploading signaling information by mobile phone terminal is calibrated the space radio-frequency path, and record mobile phone putting position in shielded box, because computer is not connected with product to be measured, comprehensive test instrument is connected with computer by the GPIB card, whether therefore, this comprehensive test instrument can only be accepted the test signal of Devices to test and be analyzed, can't normally be judged the wireless radio frequency index of any products.A kind of mobile phone radio frequency HIST of disclosed utility model patent of while system, its calibrating mode also has essence different from the utility model, the test macro of this utility model patent is to connect by comprehensive test instrument and mobile phone, upload signaling information by mobile phone terminal the space radio-frequency path is calibrated, and record mobile phone putting position in shielded box.And test macro of the present utility model is first by wired mode, to test exact value, more fixing Devices to test, compensate by the mode of antenna-coupled and obtain identical value by increase, determine position to be measured and test macro offset.Therefore, this utility model patent to the utility model without any enlightenment.
Summary of the invention
The technical problems to be solved in the utility model, be to provide a kind of test macro of wireless radio frequency index, Devices to test will not adopt the radio frequency testing point, also no longer adopt test fixture, directly use the antenna of the radio frequency path connection of Devices to test, all test after device assembles completes, shorten and simplified the product work flow, simultaneously, saved testing cost.
The utility model is achieved in that
A kind of test macro of wireless radio frequency index, comprise that one for placing the shielded box of Devices to test, be provided with a test antenna in described shielded box, described test antenna connects a radio frequency parameter tester, described radio frequency parameter tester connects a computer, and described computer also connects described Devices to test.
Further, described test macro also comprises an attenuator, and an end of described attenuator connects described test antenna by RF cable, and its other end connects described radio frequency parameter tester by RF cable.
Further, described test antenna connects a radio frequency parameter tester by RF cable, and described radio frequency parameter tester connects a computer by netting twine, and described computer also connects described Devices to test by netting twine.
The beneficial effects of the utility model are as follows:
Test macro of the present utility model, Devices to test will not adopt the radio frequency testing point, also no longer adopt test fixture, directly use the antenna of the radio frequency path connection of Devices to test, so just do not need the wireless plate in production test procedure to survey part, can survey and combine eventually with wireless, after completing, device assembles tested, shorten and simplified the product work flow, simultaneously, saved testing cost.This test macro is simple to operate, is convenient to the test man and skillfully grasps; Can improve testing efficiency with test speed faster, test result is reliable and stable.
The accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
The production test flow chart that Fig. 1 is Devices to test in prior art.
The structural representation that Fig. 2 is wireless plate examining system in prior art.
The structural representation of the test macro that Fig. 3 is a kind of wireless radio frequency index of the utility model.
The structural representation of another embodiment of the test macro that Fig. 4 is a kind of wireless radio frequency index of the utility model.
Embodiment
Refer to Fig. 3, a kind of test macro of wireless radio frequency index, comprise a shielded box 1 for placing Devices to test 2, be provided with a test antenna 3 in described shielded box 1, described test antenna 3 connects a radio frequency parameter tester 4, described radio frequency parameter tester 4 connects a computer 5, and described computer 5 also connects described Devices to test 2.Described test antenna 4 connects a radio frequency parameter tester 4 by RF cable 6, and described radio frequency parameter tester 4 connects a computer 5 by netting twine, and described computer 5 also connects described Devices to test 2 by netting twine.
Refer to Fig. 4, for guaranteeing that the test signal that radio frequency parameter tester 4 receives has not surpassed its maximum permissible value, can carry out signal attenuation by attenuator 8, be specially: described test macro also comprises attenuator 8, one end of described attenuator 8 connects described test antenna 3 by RF cable 6, and its other end connects described radio frequency parameter tester 4 by RF cable 6.
The test philosophy of this test macro is:
Step 10, calibrate before test, obtains loss value and the space attenuation value of RF cable, then loss value and the space attenuation value of RF cable compensated, and makes test result more accurate, and offset equals loss value and space attenuation value sum;
Before described test, calibration comprises RF cable calibration and antenna space coupling calibration, the end that described RF cable calibration is RF cable connects the RF1 port of less radio-frequency Parameters Instrument, the other end connects the RF2 port of less radio-frequency Parameters Instrument, form a test closed loop, the radio frequency parameter tester is calibrated by internal loopback, and the deviate of sending and receiving is the loss value of RF cable; Described antenna space coupling calibration is that RF cable directly is connected with the Devices to test that is not connected antenna, obtain wired test value, and then by the method for antenna-coupled, be Devices to test antenna and test antenna intercouple the transmission tested, obtain the Space Coupling test value, the absolute value of the difference of wired test value and Space Coupling test value is the space attenuation value;
Step 20, computer run automatic testing software, carry out the parameter testing of emission path, and the parameter testing of described emission path comprises: transmitting power test, EVM(Chinese: error vector magnitude) test, signal spectrum test or frequency error test.Described computer sends test command to Devices to test by netting twine, and described test command is controlled Devices to test and sent the first test signal of setting; The testing software that described automatic testing software provides for radio frequency parameter tester producer;
In test command in described step 20, comprise: modulating mode, signal frequency and signal rate.After step 21, Devices to test are received described test command, described the first test signal is gone out by the aerial radiation of Devices to test;
After receiving described the first test signal by the coupled communication between antenna, test antenna in step 22, shielded box, by RF cable, described the first test signal is transferred to the radio frequency parameter tester;
Step 23, described radio frequency parameter tester are analyzed the first test signal received, and then analysis result are shown on computers.
After completing described step 10 and step 20, carry out step 30, can also carry out and receive the path parameter testing, be specially:
Step 30, the computer run automatic testing software, carry out and receive the path parameter testing, the receiving sensitivity of test Devices to test: the second test signal that described computer control radio frequency parameter tester emission is set, described the second test signal is radiate by the test antenna in shielded box through RF cable, Devices to test is by described the second test signal of self antenna reception, computer control radio frequency parameter tester progressively reduces the power of the second test signal of emission, the second test signal of the lowest power arrived by self antenna reception according to described Devices to test, obtain the receiving sensitivity of Devices to test,
For guaranteeing that the test signal that the radio frequency parameter tester receives has not surpassed its maximum permissible value, can be by adding attenuator to carry out signal attenuation, one end of described attenuator connects described test antenna by RF cable, and its other end connects described radio frequency parameter tester by RF cable;
In step 10, calibration before test, obtain loss value and the space attenuation value of RF cable, then the pad value of loss value, space attenuation value and the attenuator of RF cable compensated, make test result more accurate, offset equals the pad value sum of loss value, space attenuation value and attenuator; The pad value of described attenuator is directly read from the specification of attenuator.In the time of need to be launched the path parameter testing, carry out described step 20 to step 23 and remain unchanged.Need to be received the path parameter testing, be carried out described step 30.
The utility model test philosophy is tested by signal coupling, by antenna and the test antenna coupling of Devices to test, the radio frequency parameter tester is by RF cable connecting test antenna, by antenna and radio frequency parameter tester, communicate, rather than directly be connected with RF cable, improved and used RF cable to connect the complexity of cabling, omitted test fixture, after having assembled, all tests Devices to test, and do not need to test front disconnection antenna, the complicated process of being assembled again after test.
Test macro of the present utility model, Devices to test will not adopt the radio frequency testing point, also no longer adopt test fixture, directly use the antenna of the radio frequency path connection of Devices to test, so just do not need the wireless plate in production test procedure to survey part, can survey and combine eventually with wireless, after completing, device assembles tested, shorten and simplified the product work flow, simultaneously, saved testing cost.This test macro is simple to operate, is convenient to the test man and skillfully grasps; Can improve testing efficiency with test speed faster, test result is reliable and stable.
Although more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.
Claims (3)
1. the test macro of a wireless radio frequency index, it is characterized in that: comprise that one for placing the shielded box of Devices to test, be provided with a test antenna in described shielded box, described test antenna connects a radio frequency parameter tester, described radio frequency parameter tester connects a computer, and described computer also connects described Devices to test.
2. the test macro of a kind of wireless radio frequency index according to claim 1, it is characterized in that: described test macro also comprises an attenuator, one end of described attenuator connects described test antenna by RF cable, and its other end connects described radio frequency parameter tester by RF cable.
3. the test macro of a kind of wireless radio frequency index according to claim 1, it is characterized in that: described test antenna connects a radio frequency parameter tester by RF cable, described radio frequency parameter tester connects a computer by netting twine, and described computer also connects described Devices to test by netting twine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204444996U CN203368490U (en) | 2013-07-24 | 2013-07-24 | Wireless radio frequency index test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204444996U CN203368490U (en) | 2013-07-24 | 2013-07-24 | Wireless radio frequency index test system |
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| CN203368490U true CN203368490U (en) | 2013-12-25 |
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| CN2013204444996U Expired - Fee Related CN203368490U (en) | 2013-07-24 | 2013-07-24 | Wireless radio frequency index test system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837778A (en) * | 2014-03-19 | 2014-06-04 | 索尔思光电（成都）有限公司 | Test circuit, system and method for testing shielding performance of shell of optical module |
| CN104158613A (en) * | 2014-09-04 | 2014-11-19 | 太仓市同维电子有限公司 | Board test calibration test method for use in wireless radio frequency test |
| CN104168072A (en) * | 2014-08-01 | 2014-11-26 | 广州三星通信技术研究有限公司 | Signal detection device and method and system for detecting receiving and transmitting performance of mobile terminal |
| CN105227477A (en) * | 2015-10-22 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | A kind of wireless router radio circuit and antenna-coupled performance detecting system and method |
| CN105759137A (en) * | 2014-12-19 | 2016-07-13 | 神讯电脑(昆山)有限公司 | Coaxial pass-through testing method for machine |
-
2013
- 2013-07-24 CN CN2013204444996U patent/CN203368490U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837778A (en) * | 2014-03-19 | 2014-06-04 | 索尔思光电（成都）有限公司 | Test circuit, system and method for testing shielding performance of shell of optical module |
| CN104168072A (en) * | 2014-08-01 | 2014-11-26 | 广州三星通信技术研究有限公司 | Signal detection device and method and system for detecting receiving and transmitting performance of mobile terminal |
| CN104168072B (en) * | 2014-08-01 | 2017-06-30 | 广州三星通信技术研究有限公司 | Signal supervisory instrument, detection mobile terminal receive the method and system of emitting performance |
| CN104158613A (en) * | 2014-09-04 | 2014-11-19 | 太仓市同维电子有限公司 | Board test calibration test method for use in wireless radio frequency test |
| CN104158613B (en) * | 2014-09-04 | 2016-03-16 | 太仓市同维电子有限公司 | In a kind of less radio-frequency test, calibration test method surveyed by plate |
| CN105759137A (en) * | 2014-12-19 | 2016-07-13 | 神讯电脑(昆山)有限公司 | Coaxial pass-through testing method for machine |
| CN105759137B (en) * | 2014-12-19 | 2018-09-18 | 神讯电脑(昆山)有限公司 | The coaxial via test method of board |
| CN105227477A (en) * | 2015-10-22 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | A kind of wireless router radio circuit and antenna-coupled performance detecting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20170724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |