CN109100578A - A kind of intermodulation testing device of multi-port antenna - Google Patents
A kind of intermodulation testing device of multi-port antenna Download PDFInfo
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- CN109100578A CN109100578A CN201810769184.6A CN201810769184A CN109100578A CN 109100578 A CN109100578 A CN 109100578A CN 201810769184 A CN201810769184 A CN 201810769184A CN 109100578 A CN109100578 A CN 109100578A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
- G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
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Abstract
The invention discloses a kind of intermodulation testing devices of multi-port antenna, including transmitting module, receiving module, multi-port module and microwave dark room, wherein；The transmitting module includes that the first microwave signal source f1 and the second microwave signal source f2, the first microwave signal source f1 and the second microwave signal source f2 is connected separately with continuous twt amplifier, and the continuous twt amplifier is connected with directional couple unit.The present invention: by the way that the test frequency point of multi-port antenna to be connect with metal net cover connecting pin, it changes traditional antenna intermodulation and designs the method for relying primarily on experience, the intermodulation practical experience accumulation of engineer can be greatly reduced, and then reduce intermodulation design risk and period, and antenna intermodulation is made to design risk management, it not only can be convenient and switch frequency point test fast automaticly, so that the test process of multiple frequency points simplifies, and a plurality of antenna is measured simultaneously, and test rapid and convenient, it is more convenient for using cost is relatively low, is more convenient to operate use.
Description
Technical field
The present invention relates to fields of communication technology, it particularly relates to a kind of intermodulation testing device of multi-port antenna.
Background technique
With the development of modern industry, all kinds of radio communication products only have good transmitting and receptivity and could protect
Demonstrate,prove communication quality, measure transmitting and receptivity index include total radiant power (TRP, Total Radiated Power),
Global radiation sensitivity (TRS, Total Radiated Sensitivity) and spacial radio frequency performance (OTA, Over TheAir)
Deng, wherein TRP requires necessarily to be greater than a given threshold, is just able to satisfy corresponding communication need, and TRS will be lower than a setting threshold
Value, when TRP and TRS are all satisfied given threshold, the value of TOA means that test index is good.Jue great branch antenna manufacturer at present
During carrying out the radio-frequency performance uniformity test of high-volume antenna, it is all made of the progress of radio frequency testing platform.A set of test macro
Including three major parts, a radio frequency testing tooling box to place antenna, a vector net to analyze data
Network analyzer and a computer to record and analyze data.The above three parts are attached, antenna can be realized
Radio-frequency performance coherence measurement.But a set of test macro is substantially the single antenna for being used to measure on a casing, sometimes
It can use and double antenna test is carried out by modification, but because the port of vector network analyzer limits, have when on a casing
When more set antennas, just it is difficult to be fully completed measurement in a set of test macro, the test macros that cover at this moment just is needed to be separated more
Test, it is time-consuming and laborious.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For the problems in the relevant technologies, the present invention proposes a kind of intermodulation testing device of multi-port antenna, existing to overcome
There is above-mentioned technical problem present in the relevant technologies.
The technical scheme of the present invention is realized as follows:
A kind of intermodulation testing device of multi-port antenna, including transmitting module, receiving module, multi-port module and microwave dark room,
Wherein；
The transmitting module include the first microwave signal source f1 and the second microwave signal source f2, the first microwave signal source f1 and
The second microwave signal source f2 is connected separately with continuous twt amplifier, and the continuous twt amplifier is connected with directional couple unit, institute
It states directional couple unit and is connected with power cell, and the coupling unit is connected to radio frequency combiner unit, the radio frequency combining is single
Member is connected with low PIM filter unit, and the low PIM filter unit transmitting terminal is connected with the first low PIM duplex unit, and described first
The receiving end of low PIM duplex unit is connected with first and accepts filter unit, and described first accepts filter, and to be connected with first low for unit
It makes an uproar and puts unit, the first low noise unit is connected with the first spectral analysis unit；
The receiving module includes the second low PIM duplex unit, and the transmitting terminal of the second low PIM duplex unit is connected with low
PIM high power load unit, the receiving end of the second low PIM duplex unit are connected with second and accept filter unit, and described
Two units that accept filter are connected with the second low noise unit, and the second low noise unit is connected with the second spectral analysis unit；
The multi-port module includes metal net cover, and the metal net cover is connected with orthogonal mode coupling unit, described orthogonal
The output end of mode coupling unit is connected with the same unit of received wave, and the received wave is the same as unit PIM duplex unit low with described second
Connection, the input terminal of the orthogonal mode coupling unit are connected with the same unit of transmitted wave, and the first low PIM duplex unit and institute
Transmitted wave is stated to be connected with unit；
The microwave dark room includes the bionical unit of channel, and the bionical unit of channel is connected with signal map unit, the signal
Map unit is connected with pose adjustment unit, and the pose adjustment unit connects active sub-unit, and the function sub-unit is connected with
Satellite navigation receiving unit, and the bionical unit of the channel is connected with the orthogonal mode coupling unit.
Further, the described first low PIM duplex unit and the second low PIM duplex unit pass through low PIM electricity respectively
Cable is connected with unit and the received wave with unit with the transmitted wave.
Further, antenna connection terminal is set on metal net cover contact, the distribution of the contact and day to be tested
The test frequency point position of line is corresponding.
Further, the working frequency of the antenna to be measured is between 2400MHz between 6000MHz.
Further, the microwave dark room connecting channel model is spatial Channel Model SCM or extending space channel mould
The channel model that type SCME or Europe future communication standard Winner I or Winner II are defined.
Beneficial effects of the present invention: by the way that the test frequency point of multi-port antenna to be connect with metal net cover connecting pin, change
Become traditional antenna intermodulation and designed the method for relying primarily on experience, the intermodulation practical experience accumulation of engineer can be greatly reduced,
And then reduce intermodulation design risk and period, and antenna intermodulation is made to design risk management, it not only can be convenient fast automatic
Ground switches frequency point test, so that the test process of multiple frequency points simplifies, and measures a plurality of antenna simultaneously, and tests quickly just
Victory is more convenient for using cost is relatively low, is more convenient to operate use.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the intermodulation testing device of multi-port antenna according to an embodiment of the present invention.
In figure:
1, transmitting module；2, receiving module；3, multi-port module；4, microwave dark room；5, the first microwave signal source f1；6, second is micro-
Wave signal source f2；7, continue twt amplifier；8, directional couple unit；9, power cell；10, radio frequency combiner unit；11, low PIM filter
Wave unit；12, the first low PIM duplex unit；13, it first accepts filter unit；14, the first low noise unit；15, the first frequency spectrum
Analytical unit；16, the second low PIM duplex unit；17, low PIM high power load unit；18, it second accepts filter unit；19,
Second low noise unit；20, the second spectral analysis unit；21, metal net cover；22, orthogonal mode coupling unit；23, received wave
Same unit；24, the same unit of transmitted wave；25, the bionical unit of channel；26, signal map unit；27, pose adjustment unit；28, function
Sub-unit；29, satellite navigation receiving unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
According to an embodiment of the invention, providing a kind of intermodulation testing device of multi-port antenna.
As shown in Figure 1, the intermodulation testing device of multi-port antenna according to an embodiment of the present invention, including transmitting module 1, connect
Module 2, multi-port module 3 and microwave dark room 4 are received, wherein；
The transmitting module 1 includes the first microwave signal source f15 and the second microwave signal source f26, first microwave signal source
F15 and the second microwave signal source f26 is connected separately with continuous twt amplifier 7, and the continuous twt amplifier 7 is connected with directional couple
Unit 8, the directional couple unit 8 is connected with power cell 9, and the coupling unit 8 is connected to radio frequency combiner unit 10, institute
It states radio frequency combiner unit 10 and is connected with low PIM filter unit 11, it is low that low 11 transmitting terminal of PIM filter unit is connected with first
PIM duplex unit 12, the receiving end of the first low PIM duplex unit 12 are connected with first and accept filter unit 13, and described
One unit 13 that accepts filter is connected with the first low noise unit 14, and the first low noise unit 14 is connected with the first spectrum analysis
Unit 15；
The receiving module 2 includes the second low PIM duplex unit 16, and the transmitting terminal of the second low PIM duplex unit 16 connects
There is a low PIM high power load unit 17, the receiving end of the second low PIM duplex unit 16 is connected with second and accepts filter unit
18, described second unit 18 that accepts filter is connected with the second low noise unit 19, and the second low noise unit 19 is connected with
Two spectral analysis units 20；
The multi-port module 3 includes metal net cover 21, and the metal net cover 21 is connected with orthogonal mode coupling unit 22, institute
The output end for stating orthogonal mode coupling unit 22 is connected with received wave with unit 23, and the received wave is low with described second with unit 23
PIM duplex unit 16 connects, and the input terminal of the orthogonal mode coupling unit 22 is connected with transmitted wave with unit 24, and described first
Low PIM duplex unit 12 is connected with the transmitted wave with unit 24；
The microwave dark room 4 includes the bionical unit 25 of channel, and the bionical unit 25 of channel is connected with signal map unit 26, institute
It states signal map unit 26 and is connected with pose adjustment unit 27, the pose adjustment unit 27 connects active sub-unit 28, described
Function sub-unit 28 is connected with satellite navigation receiving unit 29, and the bionical unit 25 of the channel and the orthogonal mode coupling unit 22
It is connected.
With the aid of the technical scheme, by the way that the test frequency point of multi-port antenna to be connect with metal net cover connecting pin,
It changes traditional antenna intermodulation and designs the method for relying primarily on experience, the intermodulation practical experience product of engineer can be greatly reduced
It is tired, and then reduce intermodulation design risk and period, and antenna intermodulation is made to design risk management, not only can be convenient it is quick from
Switch frequency point test dynamicly, so that the test process of multiple frequency points simplifies, and measure a plurality of antenna simultaneously, and tests quick
It is convenient, it is more convenient for using cost is relatively low, is more convenient to operate use.
In addition, in one embodiment, the first low PIM duplex unit 12 and the second low PIM duplex unit 16
It is connected respectively with unit 24 and the received wave with unit 23 by low PIM cable with the transmitted wave.
In addition, in one embodiment, antenna connection terminal is set on 21 contact of metal net cover, point of the contact
Cloth is corresponding with the test frequency point position of antenna to be tested.
In addition, in one embodiment, the working frequency of the antenna to be measured is between 2400MHz between 6000MHz.
In addition, in one embodiment, the 4 connecting channel model of microwave dark room is spatial Channel Model SCM or expands
The channel model that exhibition spatial Channel Model SCME or Europe future communication standard Winner I or Winner II is defined.
In conclusion by means of above-mentioned technical proposal of the invention, by by the test frequency point and metal of multi-port antenna
The connection of net cover connecting pin changes traditional antenna intermodulation and designs the method for relying primarily on experience, can greatly reduce engineer
The accumulation of intermodulation practical experience, and then reduce intermodulation design risk and period, and antenna intermodulation is made to design risk management, no
It only can be convenient and switch frequency point test fast automaticly, so that the test process of multiple frequency points simplifies, and measure simultaneously a plurality of
Antenna, and rapid and convenient is tested, it is more convenient for using cost is relatively low, is more convenient to operate use.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of intermodulation testing device of multi-port antenna, which is characterized in that including transmitting module (1), receiving module (2), more
Port module (3) and microwave dark room (4), wherein；
The transmitting module (1) includes the first microwave signal source f1(5) and the second microwave signal source f2(6), first microwave
Signal source f1(5) and the second microwave signal source f2(6) be connected separately with continuous twt amplifier (7), the continuous twt amplifier (7)
It is connected with directional couple unit (8), the directional couple unit (8) is connected with power cell (9), and the coupling unit (8)
It is connected to radio frequency combiner unit (10), the radio frequency combiner unit (10) is connected with low PIM filter unit (11), the low PIM
Filter unit (11) transmitting terminal is connected with the first low PIM duplex unit (12), the reception of the first low PIM duplex unit (12)
End is connected with first and accepts filter unit (13), and described first unit (13) that accepts filter is connected with the first low noise unit
(14), the first low noise unit (14) is connected with the first spectral analysis unit (15)；
The receiving module (2) includes the second low PIM duplex unit (16), the transmitting of the second low PIM duplex unit (16)
End is connected with low PIM high power load unit (17), and the receiving end of the second low PIM duplex unit (16) is connected with second and connects
It receives filter unit (18), described second unit (18) that accepts filter is connected with the second low noise unit (19), second low noise
It puts unit (19) and is connected with the second spectral analysis unit (20)；
The multi-port module (3) includes metal net cover (21), and the metal net cover (21) is connected with orthogonal mode coupling list
First (22), the output end of the orthogonal mode coupling unit (22) are connected with the same unit of received wave (23), the same unit of received wave
(23) PIM duplex unit (16) low with described second connect, and the input terminal of the orthogonal mode coupling unit (22) is connected with transmitting
The same unit of wave (24), and the first low PIM duplex unit (12) is connected with the same unit of the transmitted wave (24)；
The microwave dark room (4) includes the bionical unit of channel (25), and it is single that the bionical unit of channel (25) is connected with signal mapping
First (26), the signal map unit (26) are connected with pose adjustment unit (27), and the pose adjustment unit (27) is connected with
Function sub-unit (28), the function sub-unit (28) is connected with satellite navigation receiving unit (29), and the bionical unit of the channel
(25) it is connected with the orthogonal mode coupling unit (22).
2. the intermodulation testing device of multi-port antenna according to claim 1, which is characterized in that the first low PIM is bis-
Work order member (12) and the second low PIM duplex unit (16) pass through low PIM cable and the same unit of the transmitted wave (24) respectively
It is connected with the same unit of the received wave (23).
3. the intermodulation testing device of multi-port antenna according to claim 1, which is characterized in that antenna connection terminal be set on
The distribution of metal net cover (21) contact, the contact is corresponding with the test frequency point position of antenna to be tested.
4. the intermodulation testing device of multi-port antenna according to claim 1, which is characterized in that the work of the antenna to be measured
Working frequency is between 2400MHz between 6000MHz.
5. the intermodulation testing device of multi-port antenna according to claim 1, which is characterized in that the microwave dark room (4)
Connecting channel model is spatial Channel Model SCM or extending space channel model SCME or the following communication standard in Europe
The channel model that Winner I or Winner II are defined.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810769184.6A CN109100578A (en) | 2018-07-13 | 2018-07-13 | A kind of intermodulation testing device of multi-port antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810769184.6A CN109100578A (en) | 2018-07-13 | 2018-07-13 | A kind of intermodulation testing device of multi-port antenna |
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| CN109100578A true CN109100578A (en) | 2018-12-28 |
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| CN201810769184.6A Pending CN109100578A (en) | 2018-07-13 | 2018-07-13 | A kind of intermodulation testing device of multi-port antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504418A (en) * | 2021-06-25 | 2021-10-15 | 西安交通大学 | Conductive material broadband passive intermodulation characterization method based on elliptical monopole patch antenna |
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| CN102136873A (en) * | 2010-01-25 | 2011-07-27 | 中兴通讯股份有限公司 | Antenna testing system and antenna testing method |
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| CN113504418A (en) * | 2021-06-25 | 2021-10-15 | 西安交通大学 | Conductive material broadband passive intermodulation characterization method based on elliptical monopole patch antenna |
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Application publication date: 20181228 |