CN104993878A - Passive intermodulation fast test device of POI system - Google Patents
Passive intermodulation fast test device of POI system Download PDFInfo
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- CN104993878A CN104993878A CN201510270131.6A CN201510270131A CN104993878A CN 104993878 A CN104993878 A CN 104993878A CN 201510270131 A CN201510270131 A CN 201510270131A CN 104993878 A CN104993878 A CN 104993878A
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Abstract
The invention provides a passive intermodulation fast test device of a POI system. The device comprises a control center, an emitting/receiving module, a large-power amplifying module, a first passive module, a second passive module, a third passive module and a power supply. The device is simple in structure and proper in design. The device is provided for solving problems that a traditional intermodulation test device can only measure reflecting and transmission intermodulation information of all input ends of a POI system but other port terminals are provided low intermodulation load, so intermodulation performance of the POI system cannot be comprehensively evaluated according to posed problems, and only the same-frequency interference except cross-frequency interference, second-level interference and secondary harmonic interference can be evaluated. The fast test device is quick in test speed, high in efficiency, and simple to operate, much manpower and many materials are saved, working efficiency is increased and requirements of manufactures can be well satisfied.
Description
Technical field
The present invention relates to POI systems technology field, particularly a kind of POI system passive intermodulation device for quick testing.
Background technology
Traditional intermodulation testing device can only measure reflection and the transmission intermodulation information of each input of POI system respectively, the low intermodulation load of other port terminal, problem reflected like this can not the intermodulation performance of thoroughly evaluating POI system, co-channel interference can only be assessed, and cannot assess across problems such as interference, second order interference, second harmonic interference frequently, conventional test methodologies needs the measuring equipment of outfit different frequency range, testing efficiency low, loaded down with trivial details simultaneously, waste a large amount of human and material resources, can not meet the demand of producer.
Summary of the invention
Problem to be solved by this invention is to provide a kind of POI system passive intermodulation device for quick testing, solve reflection and transmission intermodulation information that existing traditional intermodulation testing device can only measure each input of POI system respectively, the low intermodulation load of other port terminal, problem reflected like this can not the intermodulation performance of thoroughly evaluating POI system, co-channel interference can only be assessed, and cannot assess across interference frequently, second order interference, the problems such as second harmonic interference, conventional test methodologies needs the measuring equipment being equipped with different frequency range simultaneously, testing efficiency is low, loaded down with trivial details, waste a large amount of manpowers, material resources, can not meet the problem of the demand of producer.
For overcoming the above problems scheme of the present invention:
A kind of POI system passive intermodulation device for quick testing, comprises control centre, transmit/receive module, High-power amplifier module, first passive module, second passive module, 3rd passive module and power supply, described control centre respectively with power supply, transmit/receive module is connected, described High-power amplifier module respectively with the first passive module, transmit/receive module, power supply is connected, described transmit/receive module respectively with control centre, High-power amplifier module, first passive module, second passive module, 3rd passive module is connected, and described control centre comprises industrial PC, single-chip microcomputer, radio-frequency (RF) switch, numerical-control attenuator, Sweep Source, indicator light, power detector and temperature monitoring, described industrial PC is connected with single-chip microcomputer with Sweep Source respectively, described single-chip microcomputer respectively with industrial PC, radio-frequency (RF) switch, numerical-control attenuator, indicator light, power detector is connected with temperature monitoring, and described transmit/receive module comprises receiver module and transmitter module.
Above-mentioned a kind of POI system passive intermodulation device for quick testing, wherein, the first described passive module is reflecting module, and the second passive module is transport module, the 3rd passive module is mixing order module.
Above-mentioned a kind of POI system passive intermodulation device for quick testing, wherein, described receiver module comprises LNA, frequency mixer, local oscillator, intermediate frequency amplifier and power monitor.
Above-mentioned a kind of POI system passive intermodulation device for quick testing, wherein, described transmitter module comprises three Sweep Source, ten single-pole double throw RF switch and a hilted broadsword four-throw radio-frequency (RF) switch.
The beneficial effect of this programme:
A kind of POI system passive intermodulation device for quick testing provided by the invention, structure is simple, reasonable in design, solve reflection and transmission intermodulation information that traditional intermodulation testing device can only measure each input of POI system respectively, the low intermodulation load of other port terminal, the problem reflected can not the intermodulation performance of thoroughly evaluating POI system, can only assess co-channel interference, and cannot assess across problems such as interference, second order interference, second harmonic interference frequently; Wherein radiating portion realizes the shunt of the control of carrier power, signal in break-make, receiving unit realizes the switching between the conjunction road of inter-modulated signal, different frequency range inter-modulated signal and sampling, single-chip microcomputer is responsible for performing concrete instruction, the loading of industrial PC test program, control Sweep Source export needed for frequency signal, carrying out communicating to single-chip microcomputer realizes relevant logic control and data acquisition, test speed is fast, excellent in efficiency, simple to operate, save a large amount of human and material resources, increase work efficiency, more can meet the demand of producer.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Tu2Shi control centre of the present invention structure chart.
Fig. 3 is transmit/receive module structure chart of the present invention.
Fig. 4 is receiver module structure chart of the present invention.
Fig. 5 is transmitter module structure chart of the present invention.
Embodiment
As shown in the figure, a kind of POI system passive intermodulation device for quick testing, comprises control centre 1, transmit/receive module 2, High-power amplifier module 3, first passive module 4, second passive module 5, 3rd passive module 6 and power supply 7, described control centre 1 respectively with power supply 7, transmit/receive module 2 is connected, described High-power amplifier module 3 respectively with the first passive module 4, transmit/receive module 2, power supply 7 is connected, described transmit/receive module 2 respectively with control centre 1, High-power amplifier module 3, first passive module 4, second passive module 5, 3rd passive module 6 is connected, and described control centre 1 comprises industrial PC 8, single-chip microcomputer 9, radio-frequency (RF) switch 10, numerical-control attenuator 11, Sweep Source 12, indicator light 13, power detector 14 and temperature monitoring 15, described industrial PC 8 is connected with single-chip microcomputer 9 with Sweep Source 12 respectively, described single-chip microcomputer 9 respectively with industrial PC 8, radio-frequency (RF) switch 10, numerical-control attenuator 11, indicator light 13, power detector 14 is connected with temperature monitoring 15, and described transmit/receive module 2 comprises receiver module 16 and transmitter module 17, and wherein, the first described passive module 4 is reflecting module, and the second passive module 5 is transport module, 3rd passive mould 6 pieces is mixing order module, and described receiver module 16 comprises LNA 18, frequency mixer 19, local oscillator 20, intermediate frequency amplifier 21 and power monitor 22, described transmitter module 17 comprises three Sweep Source 12, ten single-pole double throw RF switch 23 and a hilted broadsword four-throw radio-frequency (RF) switch 24.
A kind of POI system passive intermodulation device for quick testing provided by the invention, structure is simple, reasonable in design, solve reflection and transmission intermodulation information that traditional intermodulation testing device can only measure each input of POI system respectively, the low intermodulation load of other port terminal, the problem reflected can not the intermodulation performance of thoroughly evaluating POI system, can only assess co-channel interference, and cannot assess across problems such as interference, second order interference, second harmonic interference frequently; Wherein radiating portion realizes the shunt of the control of carrier power, signal in break-make, receiving unit realizes the switching between the conjunction road of inter-modulated signal, different frequency range inter-modulated signal and sampling, single-chip microcomputer is responsible for performing concrete instruction, the loading of industrial PC test program, control Sweep Source export needed for frequency signal, carrying out communicating to single-chip microcomputer realizes relevant logic control and data acquisition, test speed is fast, excellent in efficiency, simple to operate, save a large amount of human and material resources, increase work efficiency, more can meet the demand of producer.
Be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (4)
1. a POI system passive intermodulation device for quick testing, comprises control centre, transmit/receive module, High-power amplifier module, first passive module, second passive module, 3rd passive module and power supply, is characterized by, described control centre respectively with power supply, transmit/receive module is connected, described High-power amplifier module respectively with the first passive module, transmit/receive module, power supply is connected, described transmit/receive module respectively with control centre, High-power amplifier module, first passive module, second passive module, 3rd passive module is connected, and described control centre comprises industrial PC, single-chip microcomputer, radio-frequency (RF) switch, numerical-control attenuator, Sweep Source, indicator light, power detector and temperature monitoring, described industrial PC is connected with single-chip microcomputer with Sweep Source respectively, described single-chip microcomputer respectively with industrial PC, radio-frequency (RF) switch, numerical-control attenuator, indicator light, power detector is connected with temperature monitoring, and described transmit/receive module comprises receiver module and transmitter module.
2. a kind of POI system passive intermodulation device for quick testing as claimed in claim 1, it is characterized by, the first described passive module is reflecting module, and the second passive module is transport module, the 3rd passive module is mixing order module.
3. a kind of POI system passive intermodulation device for quick testing as claimed in claim 1, it is characterized by, described receiver module comprises LNA, frequency mixer, local oscillator, intermediate frequency amplifier and power monitor.
4. a kind of POI system passive intermodulation device for quick testing as claimed in claim 1, is characterized by, and described transmitter module comprises three Sweep Source, ten single-pole double throw RF switch and a hilted broadsword four-throw radio-frequency (RF) switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510270131.6A CN104993878A (en) | 2015-05-25 | 2015-05-25 | Passive intermodulation fast test device of POI system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510270131.6A CN104993878A (en) | 2015-05-25 | 2015-05-25 | Passive intermodulation fast test device of POI system |
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| CN201510270131.6A Pending CN104993878A (en) | 2015-05-25 | 2015-05-25 | Passive intermodulation fast test device of POI system |
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Citations (7)
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|---|---|---|---|---|
| US20020094785A1 (en) * | 2000-07-18 | 2002-07-18 | Deats Bradley W. | Portable device used to measure passive intermodulation in radio frequency communication systems |
| CN201315591Y (en) * | 2008-12-23 | 2009-09-23 | 杭州紫光网络技术有限公司 | Integrative passive intermodulation analyzer |
| CN202261311U (en) * | 2011-10-25 | 2012-05-30 | 杨斌 | Passive intermodulation test device for radio frequency (RF) device |
| CN102664695A (en) * | 2012-05-08 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test equipment |
| WO2014145553A1 (en) * | 2013-03-15 | 2014-09-18 | Bird Technologies Group Inc. | Passive intermodulation testing using pulse stimulus |
| CN204145509U (en) * | 2014-10-14 | 2015-02-04 | 南京迈科拓通讯有限公司 | A kind of passive odd of multiband and even cross modulation test system |
| CN204836182U (en) * | 2015-05-25 | 2015-12-02 | 陶长英 | Quick testing arrangement of passive intermodulation of POI system |
-
2015
- 2015-05-25 CN CN201510270131.6A patent/CN104993878A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020094785A1 (en) * | 2000-07-18 | 2002-07-18 | Deats Bradley W. | Portable device used to measure passive intermodulation in radio frequency communication systems |
| CN201315591Y (en) * | 2008-12-23 | 2009-09-23 | 杭州紫光网络技术有限公司 | Integrative passive intermodulation analyzer |
| CN202261311U (en) * | 2011-10-25 | 2012-05-30 | 杨斌 | Passive intermodulation test device for radio frequency (RF) device |
| CN102664695A (en) * | 2012-05-08 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test equipment |
| WO2014145553A1 (en) * | 2013-03-15 | 2014-09-18 | Bird Technologies Group Inc. | Passive intermodulation testing using pulse stimulus |
| CN204145509U (en) * | 2014-10-14 | 2015-02-04 | 南京迈科拓通讯有限公司 | A kind of passive odd of multiband and even cross modulation test system |
| CN204836182U (en) * | 2015-05-25 | 2015-12-02 | 陶长英 | Quick testing arrangement of passive intermodulation of POI system |
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| CB03 | Change of inventor or designer information |
Inventor after: Zou Xiaofang Inventor after: Tao Changying Inventor before: Tao Changying |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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