CN201323586Y - Passive intermodulation testing system - Google Patents
Passive intermodulation testing system Download PDFInfo
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- CN201323586Y CN201323586Y CNU2008202408674U CN200820240867U CN201323586Y CN 201323586 Y CN201323586 Y CN 201323586Y CN U2008202408674 U CNU2008202408674 U CN U2008202408674U CN 200820240867 U CN200820240867 U CN 200820240867U CN 201323586 Y CN201323586 Y CN 201323586Y
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Abstract
The utility model discloses an easy method for realizing a passive intermodulation testing system; the testing system comprises a control and display module used for controlling and displaying, a signal source module used for generating high-power signals, an intermodulation product detection module used for detecting, a duplexer 1 and a duplexer 2. The method uses the signal source module to replace the instrument signal source of traditional system and the intermodulation product detection module to replace the spectrum analyzer of traditional system, greatly lowers the manufacturing cost of the test on the basis of meeting detection precision, has smaller volume and is more suitable for the product tests of passive device manufacturers.
Description
Technical field
The utility model relates to a kind of passive cross modulation test system.
Background technology
Because each assembly that uses non-linear understood the generation intermodulation product, solution is to allow every power amplifier module only amplify the single-carrier signal of communication in the present mobile communication system, and the intermodulation product that causes of active device just can be avoided like this; Communication system is used duplexer to satisfy the system that transmits and receives and is used same antenna now, multi-carrier signal will produce intermodulation product by the coaxial cable of duplexer, connection antenna, will reduce the receiving sensitivity of communication system in the time of in intermodulation product falls into frequency acceptance band, cause reducing of coverage.So the intermodulation of testing passive device is just particularly important in base station system, the passive cross modulation test system that often uses all is to use expensive signal source, frequency spectrograph to build now, complete equipment need drop into the cost more than 1,000,000 yuan, and it is big to take up room, and can't accomplish portable.
The utility model content
The utility model technical issues that need to address provide the portable passive cross modulation test system that a kind of volume is little, cost performance is high.
For addressing the above problem, technical solution adopted in the utility model is: a kind of passive cross modulation test system, comprise the signal source module that is used to produce high-power signal, the intermodulation product detection module that is used to detect intermodulation product, duplexer 1, duplexer 2, wherein 1 of signal source module, 2 ends are connected with TX1, the RX1 mouth of duplexer 1 respectively, the ANT1 mouth of duplexer 1 is connected with the TX2 mouth of duplexer 2, the P1 end of intermodulation product detection module is connected the ANT2 termination test product of duplexer 2 with the RX2 mouth of duplexer 2.
Increase duplexer 3 between P2 end that this novel further improvement is at the intermodulation product detection module and the test product, ANT 3 ports of duplexer 3 connect test product, low intermodulation load connects the TX3 mouth of duplexer, the RX3 mouth of the P2 termination duplexer 3 of intermodulation product detection module; Comprise control and display module, this module is connected with the P3 mouth of intermodulation product detection module with 3 mouthfuls of the control ends of signal source module respectively.
This novel further improvement is that control and display module are provided with the movable storage device interface; Be connected with the keyboard that system parameters conveniently is set on control and the display module.
Adopt the beneficial effect that technique scheme produced to be: this novel signal source module, intermodulation product detection module of utilizing replaces signal source and two kinds of instrument of frequency spectrograph in the legacy system, dwindled greatly system volume, reduced the cost of system, make passive cross modulation test system can make system portable, dependable performance.
Description of drawings
Fig. 1 is this novel theory structure block diagram;
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
As shown in Figure 1, this is novel to comprise and is used to control and the display module controlling and show, be used to produce the signal source module of high-power signal, the intermodulation product detection module that is used to detect, duplexer 1, duplexer 2, duplexer 3, wherein 1 of signal source module, the TX1 of 2 ends and duplexer 1, the RX1 mouth connects, the ANT1 mouth of duplexer 1 is connected with the TX2 mouth of duplexer 2, the P1 end of intermodulation product detection module is connected with the RX2 mouth of duplexer 2, the ANT2 end of duplexer 2 and the ANT3 termination test product of duplexer 3, low intermodulation load connects the TX3 mouth of duplexer, intermodulation product detection module P2 mouth connects the RX3 mouth of duplexer 3, control and display module respectively with 3 mouthfuls of signal source module, the P3 mouth of intermodulation product detection module links to each other.
Operation principle:
This novel passive cross modulation test system is provided for producing the signal source module 1 of high-power signal by control and display module, 2 mouthfuls frequency, the TX2 mouth that is given to duplexer 2 behind the road that closes through duplexer 1, high-power signal is given to the input port of tested product, the delivery outlet of test product connects the ANT3 end of duplexer 3, this moment, control and display module can be according to the intermodulation products of set signal source generation, remove to read intermodulation product detection module P1, the test value of P2 end is demonstrated the reflection of test product then on display by control and display module, the intermodulation value of transmission.
Claims (5)
1, a kind of passive cross modulation test system, it is characterized in that: comprise the signal source module that is used to produce high-power signal, the intermodulation product detection module that is used to detect intermodulation product, duplexer 1, duplexer 2, wherein 1 of signal source module, 2 ends are connected with TX1, the RX1 mouth of duplexer 1 respectively, the ANT1 mouth of duplexer 1 is connected with the TX2 mouth of duplexer 2, the P1 end of intermodulation product detection module is connected the ANT2 termination test product of duplexer 2 with the RX2 mouth of duplexer 2.
2, passive cross modulation test system according to claim 1, it is characterized in that between the P2 of intermodulation product detection module end and test product, increasing duplexer 3, the ANT3 port of duplexer 3 connects test product, low intermodulation load connects the TX3 mouth of duplexer, the RX3 mouth of the P2 termination duplexer 3 of intermodulation product detection module.
3, passive cross modulation test system according to claim 1 and 2 is characterized in that also comprising control and display module, and this module is connected with the P3 mouth of intermodulation product detection module with 3 mouthfuls of the control ends of signal source module respectively.
4, passive cross modulation test system according to claim 3 is characterized in that control and display module are provided with the movable storage device interface.
5, passive cross modulation test system according to claim 3, it is characterized in that controlling with display module on be connected with the keyboard that system parameters conveniently is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202408674U CN201323586Y (en) | 2008-12-31 | 2008-12-31 | Passive intermodulation testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202408674U CN201323586Y (en) | 2008-12-31 | 2008-12-31 | Passive intermodulation testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323586Y true CN201323586Y (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202408674U Expired - Lifetime CN201323586Y (en) | 2008-12-31 | 2008-12-31 | Passive intermodulation testing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201323586Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102868462A (en) * | 2012-09-07 | 2013-01-09 | 苏州市大富通信技术有限公司 | Inter-modulation signal detecting system and method |
| CN103368665A (en) * | 2012-03-30 | 2013-10-23 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test method, equipment and system |
| CN108107345A (en) * | 2017-12-12 | 2018-06-01 | 广州兴森快捷电路科技有限公司 | Passive cross modulation test device |
| CN109150332A (en) * | 2018-07-26 | 2019-01-04 | 斯必能通讯器材(上海)有限公司 | A kind of device and method using vector harmonic prediction amount passive intermodulation |
-
2008
- 2008-12-31 CN CNU2008202408674U patent/CN201323586Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368665A (en) * | 2012-03-30 | 2013-10-23 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test method, equipment and system |
| 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 |
| CN102868462A (en) * | 2012-09-07 | 2013-01-09 | 苏州市大富通信技术有限公司 | Inter-modulation signal detecting system and method |
| CN108107345A (en) * | 2017-12-12 | 2018-06-01 | 广州兴森快捷电路科技有限公司 | Passive cross modulation test device |
| WO2019114254A1 (en) * | 2017-12-12 | 2019-06-20 | 广州兴森快捷电路科技有限公司 | Passive intermodulation testing device |
| CN109150332A (en) * | 2018-07-26 | 2019-01-04 | 斯必能通讯器材(上海)有限公司 | A kind of device and method using vector harmonic prediction amount passive intermodulation |
| CN109150332B (en) * | 2018-07-26 | 2021-03-16 | 斯必能通讯器材(上海)有限公司 | Device and method for pre-measuring passive intermodulation by using vector harmonics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHIJIAZHUANG SINTEK COMMUNICATION TECHNOLOGY CO., LTD. Assignor: Xu Zhaodong Contract record no.: 2012130000073 Denomination of utility model: Passive cross modulation test system Granted publication date: 20091007 License type: Exclusive License Record date: 20120508 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHIJIAZHUANG SINTEK COMMUNICATION TECHNOLOGY CO., LTD. Assignor: Xu Zhaodong Contract record no.: 2012130000073 Denomination of utility model: Passive cross modulation test system Granted publication date: 20091007 License type: Exclusive License Record date: 20120508 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |