CN104780002A - Miniaturized OTA testing system with multiple probes - Google Patents
Miniaturized OTA testing system with multiple probes Download PDFInfo
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- CN104780002A CN104780002A CN201510190329.3A CN201510190329A CN104780002A CN 104780002 A CN104780002 A CN 104780002A CN 201510190329 A CN201510190329 A CN 201510190329A CN 104780002 A CN104780002 A CN 104780002A
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- miniaturized
- ota
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Abstract
The invention discloses a miniaturized OTA testing system with multiple probes. The miniaturized OTA testing system comprises a software carrier, a measured main body which is connected with the software carrier through a probe control device, and a comprehensive tester connected with the software carrier and the probe control device respectively, wherein the measured main body comprises a shielding casing, a plurality of near-field probes which are uniformly distributed in the shielding casing, a carrying device positioned in the center of the shielding casing, and a connecting device arranged on the shielding casing, all the near-field probes point to the carrying device in the shielding casing on the position arrangement. According to the miniaturized OTA testing system disclosed by the invention, the plurality of probes encircle a tested object to sample, so that the measurement is closer to real environment, and the problem that the OTA test is not coincident with the actual OTA performance during the production of communication terminals is solved. The miniaturized OTA testing system disclosed by the invention has the advantages that the test is rapid, accurate and comprehensive, the miniaturized OTA testing system can be used for the measurement of the communication terminals, and is particularly suitable for the OTA measurement of the production line of terminal communication.
Description
Technical field
The present invention relates to communication terminal antenna measuring system.
Background technology
The flourish rising at full speed having driven communication terminal industry production value of mobile communication, communication terminal quantity rapidly increases.The OTA performance of communication terminal is very important to user, and terminal manufacturer requires that carrying out strict test at the production link of terminal checks on, and just has good OTA performance when ensureing that each equipment dispatches from the factory.Generally, need to carry out OTA test in communication terminal production process, common methods is tested for using simple coupling plate or single probe, and the sampling of this type of method of testing is simple, often can not react communication terminal OTA true representation comprehensively, exists and surveys possibility by mistake.So, how fast and accurately the true OTA performance of measuring terminals becomes a key point of production line test.
Summary of the invention
The object of the invention is to, a kind of miniaturized, quick, accurate, comprehensive OTA test macro is provided, dual polarization ultra broadband Multi probe array is adopted spatially to surround and point to measured object, by switching the radiation data of different probe sampling different directions during measurement, the space radiation performance of terminal is described comprehensively.
The technical solution adopted for the present invention to solve the technical problems is as described below: a kind of miniaturized OTA test macro with multiple probe, comprise software carrier, the measurement main body be connected with software carrier through probe control device and the comprehensive tester be connected with software carrier and control device of popping one's head in respectively, described measurement main body comprises shield shell, be evenly distributed on the multiple near field probes in shield shell, be positioned at the carrying apparatus of shield shell central authorities, connect the data connection device of software carrier and measured object, described each near field probes all points to the carrying apparatus being arranged in shield shell in location arrangements.
Be provided with multipath high-speed radio-frequency (RF) switch or radio-frequency switch array in above-mentioned probe control device, by controlling these multipath high-speed switch opens, closing different path, select corresponding probe and polarization, thus obtain corresponding sampled data.
The method of control switch or switch arrays comprises by the original interface of software carrier (as parallel or serial port) directly output logic Automatic level control, also comprise and being controlled by one piece of circuit board by chip microcontroller, described circuit board can pass through in network interface, serial ports, parallel port any one be connected with software carrier and the logic level of output control switch or switch arrays.
Above-mentioned near field probes is a kind of antenna that can transmit and receive radiofrequency signal.
Above-mentioned shield shell is provided with can the door of folding, and carrying apparatus is Collapsible structure.When the door on shield shell is opened, carrying apparatus can stretch out shield shell and facilitates outward and place measured object.
Above-mentioned data connection device is a kind of devices setting up software carrier and measured object data interaction such as USB connector, network interface connector, bluetooth equipment or wlan device, and its form of expression is various.
Above-mentioned software carrier is independently general commercial computer or special-purpose computer, also can measure plate card type in main body or the other forms of computer module with moving calculation machine program function for independence or be integrated in.
Above-mentioned communication synthesis tester represents a quasi-instrument, comprises the multiple comprehensive tester that market is common, the multiple communication synthesis tester of moral scientific & technical corporation, An Li company, Rohde & Schwarz Representative Office's production in this way.Also comprise the instrument combination of the alternative communication synthesis tester function using multiple stage instrument to build, the instrument combination that the signal generator produced as used Shi De scientific & technical corporation or Rohde & Schwarz Representative Office and signal analyzer form jointly simultaneously.
Above-mentioned shield shell is that an envelope is covered body and can be shielded radiofrequency signal outside enclosed environment when it is closed, and its realization can select flexile planform.
Above-mentioned shield shell is provided with absorbing material, and the absorbing material form of installation is unrestricted, and its effect is erasure signal reflection as much as possible, and the suction ripple that market can be used general is cotton, and Ferrite Material etc. have the material of electromagnetic wave absorption effect.
According to the present invention of said structure, its beneficial effect is, the present invention owing to sampling by surrounding multiple probes of measured object, measure closer to true environment, solve the problem that in communication terminal production process, OTA test is not inconsistent with actual OTA performance.And the present invention is miniaturized, and test fast, precisely, comprehensively, may be used for communication terminal and measure, be particularly useful for terminal communication production line OTA and measure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the present invention is described further.
Fig. 1 is present system structured flowchart;
Fig. 2 is the measurement entire body structure chart of an embodiment of the present invention;
Fig. 3 is that the measurement main body of an embodiment of the present invention opens structure chart after shield shell;
Fig. 4 is that the present invention pops one's head in control device structured flowchart;
Fig. 5 is the embodiment one of data connection device of the present invention;
Fig. 6 is the embodiment two of data connection device of the present invention;
Fig. 7 is the embodiment three of data connection device of the present invention.
Embodiment
Embodiment one
As shown in Figure 1, a kind of miniaturized OTA test macro with multiple probe, comprise software carrier, probe control device, the measurement main body be connected with software carrier through probe control device and the comprehensive tester be connected with software carrier and control device of popping one's head in respectively.Described measurement main body comprises shield shell, the data connection device of the multiple near field probes be evenly distributed in shield shell, the carrying apparatus being positioned at shield shell central authorities, connection software carrier and measured object.
Fig. 2, Fig. 3 are the structure chart (overall and inner after opening shield shell) measuring main body.And as Figure 2-3, measurement main body comprises shield shell 1, the data connection device 4 of the multiple near field probes 2 be evenly distributed in shield shell 1, the carrying apparatus 3 being positioned at shield shell 1 central authorities, connection software carrier and measured object.Shield shell 1 is provided with can the door 5 of folding, and carrying apparatus 3 is Collapsible structure, and when the door 5 on shield shell 1 is opened, carrying apparatus 3 can stretch out that shield shell 1 is outer conveniently places measured object.
Near field probes 2 is a kind of antenna that can transmit and receive radiofrequency signal, and each near field probes 2 all points to the carrying apparatus 3 being arranged in shield shell 1 in location arrangements.
Measured object is connected to software carrier by data connection device 4 and is controlled by software carrier, and near field probes 2 is passed through probe control device 6 and is connected to software carrier through connecting line 7 and is controlled by software carrier.
Comprehensive tester is connected to software carrier and controlled and software carrier, simultaneously comprehensive tester is connected to the radio frequency interface 8 of probe control device by radio frequency interface (control signal to be sent to the control circuit board of probe control device by software carrier by control interface, signal by the parsing formation control probe control device high speed radio-frequency (RF) switch of control circuit board), as shown in Figure 4.The other multiple radio frequency interfaces of probe control device 6 connect different near field probes 2, thus define the connection that comprehensive tester pops one's head in each.Radiofrequency signal is carried out between measured object and near field probes 2 mutual under software carrier allotment.
Probe control device controls near field probes 2 under software carrier controls, and opens and closes different near field probes 2 with a definite sequence.Entire system work achieves the near field probes 2 of measured object by different directions and the communication of comprehensive tester, thus realizes being described in different directions radiation or receptivity communication terminal.
As illustrated in figs. 5-7, data connection device 4 is a kind of device setting up software carrier and measured object data interaction such as USB connector (comprise USB plug, socket and be applicable to connect the plug of measured object), network interface connector (WLAN wireless network card), bluetooth equipment (Bluetooth adapter) or wlan device, and its form of expression is various.
Sampled data in conjunction with θ and φ angle after tested software carry out operational analysis (software section is existing known content), draw the three-dimensional OTA performance of terminal, in order to judge the OTA performance of terminal.Wherein θ and φ is by the determining positions of near field probes 2.The present invention samples by by surrounding multiple near field probes 2 of measured object, measure closer to true environment, solve the problem that in communication terminal production process, OTA test is not inconsistent with actual OTA performance.And the present invention is miniaturized, and test fast, precisely, comprehensively, may be used for communication terminal and measure, be particularly useful for terminal communication production line OTA and measure.
Above-described embodiment and accompanying drawing only describe the present invention for square shield shell; wherein 8 near field probes 1 are distributed in the way of example at 8 angles of shield shell 1 to invention has been exemplary description; obvious realization of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or the design of patent of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (7)
1. one kind has the miniaturized OTA test macro of multiple probe, it is characterized in that, comprise software carrier, probe control device, the measurement main body be connected with software carrier through probe control device and the comprehensive tester be connected with software carrier and control device of popping one's head in respectively, described measurement main body comprises shield shell, be evenly distributed on the multiple near field probes in shield shell, be positioned at the carrying apparatus of shield shell central authorities, connect the data connection device of software carrier and measured object, described each near field probes all points to the carrying apparatus being arranged in shield shell in location arrangements.
2. a kind of miniaturized OTA test macro with multiple probe according to claim 1, it is characterized in that, multipath high-speed radio-frequency (RF) switch or radio-frequency switch array is provided with in described probe control device, opening by controlling this speed-sensitive switch, closing different radio frequency path, select corresponding probe and polarization, thus obtain corresponding sampled data.
3. a kind of miniaturized OTA test macro with multiple probe according to claim 1, is characterized in that, described shield shell is provided with can the door of folding, and carrying apparatus is Collapsible structure.
4. a kind of miniaturized OTA test macro with multiple probe according to claim 1, it is characterized in that, described data connection device is USB connector, network interface connector, bluetooth equipment or wlan device.
5. a kind of miniaturized OTA test macro with multiple probe according to claim 1, it is characterized in that, described software carrier is independently general commercial computer or special-purpose computer or independence or be integrated in the computer module with moving calculation machine program function of the plate card type measured in main body.
6. a kind of miniaturized OTA test macro with multiple probe according to claim 1, it is characterized in that, the instrument group of alternative communication synthesis tester that described comprehensive tester is common communication synthesis tester or is combined to form by signal generator and signal analyzer.
7. a kind of miniaturized OTA test macro with multiple probe according to claim 1, is characterized in that, be provided with absorbing material in described shield shell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190329.3A CN104780002A (en) | 2015-04-21 | 2015-04-21 | Miniaturized OTA testing system with multiple probes |
| PCT/CN2015/077165 WO2016169001A1 (en) | 2015-04-21 | 2015-04-22 | Miniaturized ota test system having plurality of probes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190329.3A CN104780002A (en) | 2015-04-21 | 2015-04-21 | Miniaturized OTA testing system with multiple probes |
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| CN104780002A true CN104780002A (en) | 2015-07-15 |
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| CN201510190329.3A Pending CN104780002A (en) | 2015-04-21 | 2015-04-21 | Miniaturized OTA testing system with multiple probes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108134637A (en) * | 2016-12-01 | 2018-06-08 | 深圳市新益技术有限公司 | A kind of producing line shielded box RF coupling test equipment and method |
| CN108200755A (en) * | 2018-01-17 | 2018-06-22 | 珠海博杰电子股份有限公司 | A kind of double layer screen case |
| CN110531174A (en) * | 2019-10-11 | 2019-12-03 | 深圳合一测试科技有限公司 | Electromagnetic reverberation room shields box structure and test method |
| WO2021092775A1 (en) * | 2019-11-12 | 2021-05-20 | 华为技术有限公司 | Full-temperature ota testing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134637A (en) * | 2016-12-01 | 2018-06-08 | 深圳市新益技术有限公司 | A kind of producing line shielded box RF coupling test equipment and method |
| CN108134637B (en) * | 2016-12-01 | 2023-05-02 | 深圳市新益技术有限公司 | Production line shielding box radio frequency coupling test equipment and method |
| CN108200755A (en) * | 2018-01-17 | 2018-06-22 | 珠海博杰电子股份有限公司 | A kind of double layer screen case |
| CN110531174A (en) * | 2019-10-11 | 2019-12-03 | 深圳合一测试科技有限公司 | Electromagnetic reverberation room shields box structure and test method |
| WO2021092775A1 (en) * | 2019-11-12 | 2021-05-20 | 华为技术有限公司 | Full-temperature ota testing system |
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Application publication date: 20150715 |
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