CN207166499U - A kind of nine port cross modulation test systems - Google Patents
A kind of nine port cross modulation test systems Download PDFInfo
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- CN207166499U CN207166499U CN201720843460.XU CN201720843460U CN207166499U CN 207166499 U CN207166499 U CN 207166499U CN 201720843460 U CN201720843460 U CN 201720843460U CN 207166499 U CN207166499 U CN 207166499U
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Abstract
The utility model provides a kind of nine port cross modulation test systems, including transmitter module, receiving module, switches set 1, switches set 2 and duplexer module, transmitter module sends the transmission signal after synthesis by the switches set 1 the TX ports of each duplexer into the duplexer module, launch intermodulation product and pass through the RX port transmissions of each duplexer in the duplexer module to the receiving module, sampling analysis processing is carried out to the transmitting intermodulation product received, the utility model can test the intermodulation of the passive device of nine single ports simultaneously, connector and test cable without the tested passive device of dismounting repeatedly, substantially increase the efficiency of intermodulation testing, with the key test function of multiple reflection one.
Description
Technical field
It the utility model is related to passive device intermodulation product technical field of measurement and test, and in particular to a kind of nine port intermodulation testings
System.
Background technology
Passive intermodulation (Passive Inter-Modulation), abbreviation PIM, is called intermodulation distortion, is by radio system
In various passive devices nonlinear characteristic caused by.In high-power, multichannel system, the non-linear meeting of these passive devices
Some frequency components relative to working frequency are produced, and these frequency components and working frequency are mixed into job family
System, if these useless frequency components are sufficiently large, the normal work of communication system will be influenceed, PIM intermodulation distortion is to influence
One of interference of radio system normal work.It is more high-power with constantly coming into operation for the new frequency range planning of GSM
The application of emitter and the continuous improvement of receiver sensitivity, system interference getting worse, passive intermodulation caused by passive intermodulation
System index is more and more of interest by operator, engineering contractor, equipment manufacturers and device manufacturer.
Ordinary passive intermodulation testing instrument is suitable only for testing the intermodulation index of a passive device to two single ports, no
It is adapted to the intermodulation index for testing multiple single port passive devices simultaneously.
Utility model content
The application by providing a kind of nine port cross modulation test systems, disclosure satisfy that mobile communication test multiple single ports without
Source device intermodulation testing, asked with solving to test the technology of multiple single port passive device intermodulation indexs in the prior art simultaneously
Topic.
In order to solve the above technical problems, the application is achieved using following technical scheme：
A kind of nine port cross modulation test systems, including transmitter module, receiving module, switches set 1, switches set 2 and duplex
Device module, wherein, the transmitter module includes the first signal source, secondary signal source, the first power amplifier, the second power amplification
Device, the first coupler, the second coupler, the first AD sampling units, the 2nd AD sampling units, 3dB electric bridges, power termination and hair
Wave filter is penetrated, the receiving module includes receiving filter and digital received unit, and first signal source, the first power are put
Big device, the first coupler are sequentially connected, and the signal after the first AD sampling units couple to first coupler is adopted
Sample, the output end of first coupler connect the input of the 3dB electric bridges, the secondary signal source, the second power amplification
Device, the second coupler are sequentially connected, and the signal after the 2nd AD sampling units couple to second coupler samples,
The output end of second coupler connects the input of the 3dB electric bridges, and the 3dB electric bridges enter the two paths of signals received
Row power combing, an output end of the 3dB electric bridges connect the power termination and carry out power absorption, the 3dB electric bridges
Another output end connects the input port of the emission filter, and the transmission signal after power combing is transmitted to the transmitting
Wave filter, the output port of the emission filter connect the switches set 1, each output port difference of the switches set 1
It is sequentially connected the TX ports of each duplexer in the duplexer module, the RX ends of each duplexer in the duplexer module
Mouth tackles each output port for connecting the switches set 2 successively, is accepted filter described in the public port connection of the switches set 2
The input port of device, the output port of the receiving filter connects the input port of the digital received unit, to receiving
Transmitting intermodulation product carry out sampling analysis processing.
Further, the switches set 1 includes the first RF switch, the second RF switch, the 3rd RF switch and the
Four RF switches, first RF switch, the second RF switch, the 3rd RF switch and the 4th RF switch are one point
Three NF type RF switches, wherein, the output port of first RF switch connects second RF switch, the 3rd penetrated respectively
The public port of frequency switch and the 4th RF switch.
Further, the switches set 2 includes the 5th RF switch and the 6th RF switch, and the 5th RF switch is
One-to-two SMAF type RF switches, the 6th RF switch are one point of eight SMAF type RF switch, wherein, the 5th radio frequency
One output port of switch connects the public port of the 6th RF switch.
Further, the duplexer module includes first duplexer, the second duplexer, the 3rd duplexer, the 4th duplex
Device, the 5th duplexer, the 6th duplexer, the 7th duplexer, the 8th duplexer and the 9th duplexer.
Further, each output port of second RF switch, the 3rd RF switch and the 4th RF switch
Be sequentially connected respectively the first duplexer, the second duplexer, the 3rd duplexer, the 4th duplexer, the 5th duplexer, the 6th pair
Work device, the 7th duplexer, the TX ports of the 8th duplexer and the 9th duplexer, the first duplexer, the second duplexer,
Three duplexers, the 4th duplexer, the 5th duplexer, the 6th duplexer, the 7th duplexer and the 8th duplexer RX ports according to
Secondary reply connects the output port of the 6th RF switch, and the RX ports of the 9th duplexer connect the 5th radio frequency and opened
Another output port closed.
Compared with prior art, the technical scheme that the application provides, the technique effect or advantage having are：It can survey simultaneously
The intermodulation of the passive device of nine single ports is tried, the connector and test cable of passive device are tested without dismounting repeatedly, greatly
The big efficiency for improving intermodulation testing, has the key test function of multiple reflection one.
Brief description of the drawings
Fig. 1 is nine port cross modulation test system structured flowcharts.
Embodiment
The embodiment of the present application disclosure satisfy that mobile communication tests multiple lists by providing a kind of nine port cross modulation test systems
Port passive device intermodulation testing, to solve that multiple single port passive device intermodulation indexs can not be tested simultaneously in the prior art
Technical problem.
It is right below in conjunction with Figure of description and specific embodiment in order to be better understood from above-mentioned technical proposal
Above-mentioned technical proposal is described in detail.
Embodiment
A kind of nine port cross modulation test systems, as shown in figure 1, including transmitter module, receiving module, switches set 1, switches set
2 and duplexer module, wherein, the transmitter module includes the first signal source 101, secondary signal source 102, the first power amplification
Device 201, the second power amplifier 202, the first coupler 301, the second coupler 302, the first AD sampling units 401, the 2nd AD
Sampling unit 402,3dB electric bridges 501, power termination 601 and emission filter 701, the receiving module include accepting filter
Device 702 and digital received unit 1101, first signal source 101, the first power amplifier 201, the first coupler 301 according to
Secondary to be connected, the signal after the first AD sampling units 401 couple to first coupler 301 samples, and described first
The output end of coupler 301 connects the input of the 3dB electric bridges 501, the secondary signal source 102, the second power amplifier
202nd, the second coupler 302 is sequentially connected, and the 2nd AD sampling units 402 are to the letter after second coupler 302 coupling
Number sampled, the output end of second coupler 302 connects the input of the 3dB electric bridges 501, the 3dB electric bridges 501
The two paths of signals received is subjected to power combing, an output end of the 3dB electric bridges 501 connects the power termination 601
Power absorption is carried out, another output end of the 3dB electric bridges 501 connects the input port of the emission filter 701, by work(
Transmission signal after rate synthesis is transmitted to the emission filter 701, described in the output port connection of the emission filter 701
Switches set 1.
The switches set 1 includes the first RF switch 801, the second RF switch 802, the 3rd RF switch 803 and the
Four RF switches 804, first RF switch 801, the second RF switch 802, the 3rd RF switch 803 and the 4th radio frequency
Switch 804 is one point of three NF type RF switch, wherein, the output port of first RF switch 801 connects described respectively
The public port of second RF switch 802, the 3rd RF switch 803 and the 4th RF switch 804.
The switches set 2 includes the 5th RF switch 901 and the 6th RF switch 902, and the 5th RF switch 901 is
One-to-two SMAF type RF switches, the 6th RF switch 902 are one point of eight SMAF type RF switch, wherein, the described 5th
One output port of RF switch 901 connects the public port of the 6th RF switch 902.
The duplexer module include first duplexer 1001, the second duplexer 1002, the 3rd duplexer 1003, the 4th pair
Work device 1004, the 5th duplexer 1005, the 6th duplexer 1006, the 7th duplexer 1007, the 8th duplexer 1008 and the 9th
Duplexer 1009.
Each output port of second RF switch 802, the 3rd RF switch 803 and the 4th RF switch 804
Be sequentially connected respectively the first duplexer 1001, the second duplexer 1002, the 3rd duplexer 1003, the 4th duplexer 1004,
5th duplexer 1005, the 6th duplexer 1006, the 7th duplexer 1007, the 8th duplexer 1008 and the 9th duplexer 1009
TX ports, opened specifically, 1/2/3 output port of first RF switch 801 is corresponding in turn to connection second radio frequency
Close the public port of the 802, the 3rd RF switch 803 and the 4th RF switch 804；1/2/3 output of the second RF switch 802
Port is sequentially connected the TX ports of first duplexer 1001, the TX ports of the second duplexer 1002, the 3rd duplexer 1003 respectively
TX ports；1/2/3 output port of the 3rd RF switch 803 is corresponding in turn to the TX ends of the 4th duplexer 1004 of connection
Mouth, the TX ports of the 5th duplexer 1005, the TX ports of the 6th duplexer 1006；1/2/3 output end of the 4th RF switch 804
Mouth is corresponding in turn to the TX ports, the TX ports of the 8th duplexer 1008, the 9th duplexer of the 7th duplexer 1007 of connection
1009 TX ports.
The first duplexer 1001, the second duplexer 1002, the 3rd duplexer 1003, the 4th duplexer the 1004, the 5th
Duplexer 1005, the 6th duplexer 1006, the RX ports company of reply successively of the 7th duplexer 1007 and the 8th duplexer 1008
Eight output ports of the 6th RF switch 902 are connect, the RX ports connection the described 5th of the 9th duplexer 1009 is penetrated
Another output port of frequency switch 901, the public port of the 5th RF switch 901 connect the receiving filter 702
Input port, the output port of the receiving filter 702 connect the input port of the digital received unit 1101, to receiving
The transmitting intermodulation product arrived carries out sampling analysis processing.
In above-described embodiment of the application, by providing a kind of nine port cross modulation test systems, including transmitter module, reception
Transmission signal after synthesis is passed through the switches set 1 by module, switches set 1, switches set 2 and duplexer module, transmitter module
The TX ports of each duplexer into the duplexer module are sent, transmitting intermodulation product passes through each in the duplexer module
The RX port transmissions of duplexer carry out sampling analysis processing, the reality to the receiving module to the transmitting intermodulation product received
With the intermodulation of the new passive device that can test nine single ports simultaneously, the connection without the tested passive device of dismounting repeatedly
Head and test cable, substantially increase the efficiency of intermodulation testing, have the key test function of multiple reflection one.
It should be pointed out that it is that limitation of the present utility model, the utility model are also not limited to that described above, which is not,
The example above, what those skilled in the art were made in essential scope of the present utility model changes, is modified, adding
Add or replace, should also belong to the scope of protection of the utility model.
Claims (5)
1. a kind of nine port cross modulation test systems, it is characterised in that including transmitter module, receiving module, switches set 1, switches set 2
And duplexer module, wherein, the transmitter module includes the first signal source (101), secondary signal source (102), the first power
Amplifier (201), the second power amplifier (202), the first coupler (301), the second coupler (302), the first AD samplings it is single
First (401), the 2nd AD sampling units (402), 3dB electric bridges (501), power termination (601) and emission filter (701), institute
Stating receiving module includes receiving filter (702) and digital received unit (1101), first signal source (101), first
Power amplifier (201), the first coupler (301) are sequentially connected, and the first AD sampling units (401) couple to described first
Signal after device (301) coupling is sampled, and the output end of first coupler (301) connects the 3dB electric bridges (501)
Input, the secondary signal source (102), the second power amplifier (202), the second coupler (302) are sequentially connected, and described
Signal after two AD sampling units (402) couple to second coupler (302) samples, second coupler
(302) output end connects the input of the 3dB electric bridges (501), the two paths of signals that the 3dB electric bridges (501) will receive
Power combing is carried out, an output end of the 3dB electric bridges (501) connects the power termination (601) and carries out power absorption, institute
Another output end for stating 3dB electric bridges (501) connects the input port of the emission filter (701), after power combing
Transmission signal is transmitted to the emission filter (701), the output port of the emission filter (701) and connects the switches set
1, each output port of the switches set 1 is sequentially connected the TX ports of each duplexer in the duplexer module, institute respectively
The each output port for connecting the switches set 2 is tackled in the RX ports for stating each duplexer in duplexer module successively, described
The public port of switches set 2 connects the input port of the receiving filter (702), the output of the receiving filter (702)
Port connects the input port of the digital received unit (1101), and the transmitting intermodulation product received is carried out at sampling analysis
Reason.
2. nine port according to claim 1 cross modulation test system, it is characterised in that the switches set 1 is penetrated including first
Frequency switch (801), the second RF switch (802), the 3rd RF switch (803) and the 4th RF switch (804), described first
RF switch (801), the second RF switch (802), the 3rd RF switch (803) and the 4th RF switch (804) are one
Divide three NF type RF switches, wherein, the output port of first RF switch (801) connects second RF switch respectively
(802), the public port of the 3rd RF switch (803) and the 4th RF switch (804).
3. nine port according to claim 2 cross modulation test system, it is characterised in that the switches set 2 is penetrated including the 5th
Frequency switch (901) and the 6th RF switch (902), the 5th RF switch (901) are one-to-two SMAF type RF switches, institute
It is one point of eight SMAF type RF switch to state the 6th RF switch (902), wherein, one of the 5th RF switch (901) is defeated
Exit port connects the public port of the 6th RF switch (902).
4. nine port according to claim 3 cross modulation test system, it is characterised in that the duplexer module includes first
Duplexer (1001), the second duplexer (1002), the 3rd duplexer (1003), the 4th duplexer (1004), the 5th duplexer
(1005), the 6th duplexer (1006), the 7th duplexer (1007), the 8th duplexer (1008) and the 9th duplexer
(1009)。
5. nine port according to claim 4 cross modulation test system, it is characterised in that second RF switch (802),
Each output port of 3rd RF switch (803) and the 4th RF switch (804) is sequentially connected first duplex respectively
Device (1001), the second duplexer (1002), the 3rd duplexer (1003), the 4th duplexer (1004), the 5th duplexer (1005),
6th duplexer (1006), the 7th duplexer (1007), the TX ends of the 8th duplexer (1008) and the 9th duplexer (1009)
Mouthful, the first duplexer (1001), the second duplexer (1002), the 3rd duplexer (1003), the 4th duplexer (1004), the
Five duplexers (1005), the 6th duplexer (1006), the RX ports of the 7th duplexer (1007) and the 8th duplexer (1008)
Reply connects the output port of the 6th RF switch (902), the RX ports connection of the 9th duplexer (1009) successively
Another output port of 5th RF switch (901).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843460.XU CN207166499U (en) | 2017-07-12 | 2017-07-12 | A kind of nine port cross modulation test systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843460.XU CN207166499U (en) | 2017-07-12 | 2017-07-12 | A kind of nine port cross modulation test systems |
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| Publication Number | Publication Date |
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| CN207166499U true CN207166499U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720843460.XU Active CN207166499U (en) | 2017-07-12 | 2017-07-12 | A kind of nine port cross modulation test systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931704A (en) * | 2018-06-19 | 2018-12-04 | 南京纳特通信电子有限公司 | A kind of 32 ports band S parameter passive cross modulation test instrument |
| CN118337301A (en) * | 2024-06-13 | 2024-07-12 | 南京纳特通信电子有限公司 | Multi-port multi-band multifunctional intermodulation test system and intermodulation test method |
-
2017
- 2017-07-12 CN CN201720843460.XU patent/CN207166499U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931704A (en) * | 2018-06-19 | 2018-12-04 | 南京纳特通信电子有限公司 | A kind of 32 ports band S parameter passive cross modulation test instrument |
| CN118337301A (en) * | 2024-06-13 | 2024-07-12 | 南京纳特通信电子有限公司 | Multi-port multi-band multifunctional intermodulation test system and intermodulation test method |
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