CN204836181U - Quick testing arrangement of dual polarized antenna passive intermodulation - Google Patents
Quick testing arrangement of dual polarized antenna passive intermodulation Download PDFInfo
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- CN204836181U CN204836181U CN201520339029.2U CN201520339029U CN204836181U CN 204836181 U CN204836181 U CN 204836181U CN 201520339029 U CN201520339029 U CN 201520339029U CN 204836181 U CN204836181 U CN 204836181U
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000009977 dual effect Effects 0.000 title claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 28
- 230000010287 polarization Effects 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model provides a quick testing arrangement of dual polarized antenna passive intermodulation, its novel structure, the design uniqueness has increased a low intermodulation switch matrix on traditional passive intermodulation testing arrangement's basis, realized dual polarized antenna's quick intermodulation test, and when conventional test, PORT1 is transmission intermodulation test port for reflection intermodulation test port, PORT2, and the signal transmits according to the full line in low intermodulation switch matrix, when test dual polarized antenna, PORT1 is polarization intermodulation test port on the antenna, and PORT2 is another polarization of antenna intermodulation test port, and the full line transmission is installed earlier to the signal in intermodulation switch matrix, and the intermodulation level of a polarization is accomplished in the test, then signal automatic switch -over to dotted line transmission, and the intermodulation level of another one polarization is accomplished in the test.
Description
Technical field
The utility model relates to a kind of dual polarized antenna passive intermodulation device for quick testing.
Background technology
In a communications system, when two or more signal is by the device transmission with nonlinear characteristic, in composite signal, intermodulation product is produced.During the receiver passband worked near these intermodulation products fall into, parasitic disturbances can be formed.In radio environment, 3 regions are had to produce intermodulation: the output stage of (1) transmitter, non-linear due in power amplifier circuit; (2) input stage of receiver, non-linear due to frequency mixer and radio circuit; (3) in coaxial cable, waveguide, connector, multiple-path coupler, wire netting, tower and mast, nonlinear material contacts with non linear metal.The active Intermodulation Interference produced by transmitter and receiver, realizes minimizing by suitable isolation of system.The intermodulation that Metal Contact and material nonlinearity cause, is called passive intermodulation (PIM), and it usually can not be adopted to use the same method and be suppressed.Passive intermodulation product produces usually in multi-band communication environment, as shipboard communication system, military communication work station, common antenna place, cellular mobile communication base station and satellite earth receiving station etc.In such systems, can observe PIM product in various degree.In the communication system particularly occurred after the end of the seventies in last century, require that high-power emission system and high sensitivity receiving system are present in the confined space simultaneously, the passive intermodulation interference that this just causes must be suppressed.In the past in many decades, passive intermodulation causes serious problems to many communication systems.In recent years, due to the increase of radio facility, this problem causes new attention.
Therefore produce passive cross modulation test device, carry out passive cross modulation test for passive device in advance and specific aim solution, at the passive cross modulation test device of existing use, there is following problem in majority:
(1) traditional passive cross modulation test device is single reflection single transport test mode;
(2) when measuring dual polarized antenna, test loaded down with trivial details, consuming time, inefficiency.
Utility model content
For solving the technical deficiency of existing passive intermodulation testing device, the utility model provides one can Quick Measurement dual polarized antenna, can meet again the passive cross modulation test device of the quick test of conventional products.
For solving above technical problem, the technical scheme that the utility model provides is:
A kind of dual polarized antenna passive intermodulation device for quick testing, it is characterized in that, comprise 2 signal sources, 2 power amplifiers, 1 low intermodulation 3dB electric bridge, 1 the first low intermodulation load, 1 low intermodulation switch matrix, 2 low inter-modulation duplexers, 1 the first radio-frequency (RF) switch and 1 receiver module, described first radio-frequency (RF) switch is single-pole double throw RF switch, and the first radio-frequency (RF) switch comprises fixed contact G1, H1 and moving contact D1;
Described signal source and power amplifier one_to_one corresponding, mutual series connection, the output of 2 power amplifiers is all connected with the input of low intermodulation 3dB electric bridge, the output of described low intermodulation 3dB electric bridge connects the input of the first low intermodulation load and low intermodulation switch matrix respectively, the output of described low intermodulation switch matrix is connected with the input of 2 low inter-modulation duplexers, the output of described 2 low inter-modulation duplexers is connected with fixed contact G1 and H1 of the first radio-frequency (RF) switch respectively, and the moving contact D1 of the first radio-frequency (RF) switch is connected with receiver module.
Above-mentioned a kind of dual polarized antenna passive intermodulation device for quick testing, wherein, described low intermodulation switch matrix is realized by 3 kinds of syndetons:
One, described low intermodulation switch matrix comprises 1 the second radio-frequency (RF) switch, the second low intermodulation load, described second radio-frequency (RF) switch is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D2 and fixed contact G2, H2, the output of low intermodulation 3dB electric bridge is directly connected with the input of 1 low inter-modulation duplexer, and fixed contact G2 with H2 of the second radio-frequency (RF) switch is connected input and the second low intermodulation load of another 1 low inter-modulation duplexer respectively;
They are two years old, described low intermodulation switch matrix comprises 1 the 3rd radio-frequency (RF) switch, 2 low intermodulation loads and 1 the 4th radio-frequency (RF) switch, described 3rd radio-frequency (RF) switch is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D3 and fixed contact G3, H3, described 4th radio-frequency (RF) switch is single-pole double throw RF switch, comprise moving contact D4 and fixed contact G4, H4, the output of low intermodulation 3dB electric bridge is directly connected with the input of 1 low inter-modulation duplexer, fixed contact G3 with H3 of the 3rd radio-frequency (RF) switch is connected fixed contact G4 and 1 the 3rd low intermodulation load of the 4th radio-frequency (RF) switch respectively, the fixed contact H4 of described 4th radio-frequency (RF) switch connects another 1 the 3rd low intermodulation load, moving contact D4 connects the input of another 1 low inter-modulation duplexer,
They are three years old, described low intermodulation switch matrix comprises 1 the 5th radio-frequency (RF) switch, 1 the 6th radio-frequency (RF) switch, 1 the 7th radio-frequency (RF) switch and 2 the 4th low intermodulation loads, described 5th radio-frequency (RF) switch comprises fixed contact G5, H5 and moving contact D5, described 6th radio-frequency (RF) switch comprises fixed contact G6, H6 and moving contact D6, described 7th radio-frequency (RF) switch comprises fixed contact G7, H7 and moving contact D7, the moving contact D5 of the 5th radio-frequency (RF) switch is connected with the output of low intermodulation 3dB electric bridge, the moving contact D6 of the 6th radio-frequency (RF) switch is connected with the input of 1 low inter-modulation duplexer, fixed contact G5 and G6 directly connects, fixed contact H5 is directly connected with fixed contact G7, fixed contact H6 is connected with 1 the 4th low intermodulation load, fixed contact H7 is connected with another 1 the 4th low intermodulation load, moving contact D7 is connected with the input of another 1 low inter-modulation duplexer.
The beneficial effects of the utility model are:
A kind of dual polarized antenna passive intermodulation device for quick testing that the utility model proposes, its novel structure, design is unique, the basis of traditional passive intermodulation testing device adds a low intermodulation switch matrix, achieve the quick intermodulation testing of dual polarized antenna, when conventionally test, PORT1 is reflection intermodulation testing port, PORT2 is transmission intermodulation testing port, and signal transmits according to solid line in low intermodulation switch matrix; When testing dual polarized antenna, PORT1 is one, antenna polarization intermodulation testing port, PORT2 is another polarization intermodulation testing port of antenna, signal first installs solid line transmission in intermodulation switch matrix, test the intermodulation level of a polarization, then signal automatically switches to dotted line transmission, has tested the intermodulation level of another one polarization.
Accompanying drawing explanation
Fig. 1 the utility model schematic diagram.
One of Fig. 2 the utility model schematic diagram.
Fig. 3 the utility model schematic diagram two.
Fig. 4 the utility model schematic diagram three.
Embodiment
A kind of dual polarized antenna passive intermodulation device for quick testing as shown in the figure, it is characterized in that, comprise 2 signal sources, 1,2 power amplifiers, 1,1 low intermodulation 3dB electric bridge, 3,1 the first low intermodulation load, 4,1 low intermodulation switch matrix, 5,2 low inter-modulation duplexers, 6,1 the first radio-frequency (RF) switch 7 and 1 receiver module 8, described first radio-frequency (RF) switch is single-pole double throw RF switch, and the first radio-frequency (RF) switch comprises fixed contact G1, H1 and moving contact D1;
Described signal source 1 and power amplifier 2 one_to_one corresponding, mutual series connection, the output of 2 power amplifiers 2 is all connected with the input of low intermodulation 3dB electric bridge 3, the output of described low intermodulation 3dB electric bridge 3 connects the input of the first low intermodulation load 4 and low intermodulation switch matrix 5 respectively, the output of described low intermodulation switch matrix 5 is connected with the input of 2 low inter-modulation duplexers 6, the output of described 2 low inter-modulation duplexers 6 is connected with fixed contact G1 and H1 of the first radio-frequency (RF) switch 7 respectively, and the moving contact D1 of the first radio-frequency (RF) switch 7 is connected with receiver module 8.
Above-mentioned a kind of dual polarized antenna passive intermodulation device for quick testing, wherein, described low intermodulation switch matrix 5 is realized by 3 kinds of syndetons:
One, as shown in Figure 2, described low intermodulation switch matrix 5 comprises the low intermodulation load 41 of 1 the second radio-frequency (RF) switch 51, second, described second radio-frequency (RF) switch 51 is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D2 and fixed contact G2, H2, the output of low intermodulation 3dB electric bridge 3 is directly connected with the input of 1 low inter-modulation duplexer 6, and fixed contact G2 with H2 of the second radio-frequency (RF) switch 51 is connected input and the second low intermodulation load 41 of another 1 low inter-modulation duplexer 6 respectively;
They are two years old, as shown in Figure 3, described low intermodulation cubicle switchboard 5 gusts comprises 1 the 3rd radio-frequency (RF) switch 52, 2 the 3rd low intermodulation loads, 42 and 1 the 4th radio-frequency (RF) switch 53, described 3rd radio-frequency (RF) switch 52 is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D3 and fixed contact G3, H3, described 4th radio-frequency (RF) switch 53 is single-pole double throw RF switch, comprise moving contact D4 and fixed contact G4, H4, the output of low intermodulation 3dB electric bridge 3 is directly connected with the input of 1 low inter-modulation duplexer 6, fixed contact G3 with H3 of the 3rd radio-frequency (RF) switch 52 is connected fixed contact G4 and 1 the 3rd low intermodulation load 42 of the 4th radio-frequency (RF) switch 53 respectively, the fixed contact H4 of described 4th radio-frequency (RF) switch 53 connects another 1 the 3rd low intermodulation load 42, moving contact D4 connects the input of another 1 low inter-modulation duplexer 6,
They are three years old, as shown in Figure 4, described low intermodulation switch matrix 5 comprises 1 the 5th radio-frequency (RF) switch 54, 1 the 6th radio-frequency (RF) switch 55, 56 and 2 the 4th low intermodulation loads 43 of 1 the 7th radio-frequency (RF) switch, described 5th radio-frequency (RF) switch 54 comprises fixed contact G5, H5 and moving contact D5, described 6th radio-frequency (RF) switch 55 comprises fixed contact G6, H6 and moving contact D6, described 7th radio-frequency (RF) switch 56 comprises fixed contact G7, H7 and moving contact D7, the moving contact D5 of the 5th radio-frequency (RF) switch 54 is connected with the output of low intermodulation 3dB electric bridge 3, the moving contact D6 of the 6th radio-frequency (RF) switch 55 is connected with the input of 1 low inter-modulation duplexer 6, fixed contact G5 and G6 directly connects, fixed contact H5 is directly connected with fixed contact G7, fixed contact H6 is connected with 1 the 4th low intermodulation load 43, fixed contact H7 is connected with another 1 the 4th low intermodulation load 43, moving contact D7 is connected with the input of another 1 low inter-modulation duplexer 6.
A kind of dual polarized antenna passive intermodulation device for quick testing that the utility model proposes, its novel structure, design is unique, the basis of traditional passive intermodulation testing device adds a low intermodulation switch matrix, achieve the quick intermodulation testing of dual polarized antenna, when conventionally test, PORT1 is reflection intermodulation testing port, PORT2 is transmission intermodulation testing port, and signal transmits according to solid line in low intermodulation switch matrix; When testing dual polarized antenna, PORT1 is one, antenna polarization intermodulation testing port, PORT2 is another polarization intermodulation testing port of antenna, signal first installs solid line transmission in intermodulation switch matrix, test the intermodulation level of a polarization, then signal automatically switches to dotted line transmission, has tested the intermodulation level of another one polarization.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (4)
1. a dual polarized antenna passive intermodulation device for quick testing, it is characterized in that, comprise 2 signal sources, 2 power amplifiers, 1 low intermodulation 3dB electric bridge, 1 the first low intermodulation load, 1 low intermodulation switch matrix, 2 low inter-modulation duplexers, 1 the first radio-frequency (RF) switch and 1 receiver module, described first radio-frequency (RF) switch is single-pole double throw RF switch, and the first radio-frequency (RF) switch comprises fixed contact G1, H1 and moving contact D1;
Described signal source and power amplifier one_to_one corresponding, mutual series connection, the output of 2 power amplifiers is all connected with the input of low intermodulation 3dB electric bridge, the output of described low intermodulation 3dB electric bridge connects the input of the first low intermodulation load and low intermodulation switch matrix respectively, the output of described low intermodulation switch matrix is connected with the input of 2 low inter-modulation duplexers, the output of described 2 low inter-modulation duplexers is connected with fixed contact G1 and H1 of the first radio-frequency (RF) switch respectively, and the moving contact D1 of the first radio-frequency (RF) switch is connected with receiver module.
2. a kind of dual polarized antenna passive intermodulation device for quick testing as claimed in claim 1, it is characterized in that, described low intermodulation switch matrix comprises 1 the second radio-frequency (RF) switch, the second low intermodulation load, described second radio-frequency (RF) switch is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D2 and fixed contact G2, H2, the output of low intermodulation 3dB electric bridge is directly connected with the input of 1 low inter-modulation duplexer, and fixed contact G2 with H2 of the second radio-frequency (RF) switch is connected input and the second low intermodulation load of another 1 low inter-modulation duplexer respectively.
3. a kind of dual polarized antenna passive intermodulation device for quick testing as claimed in claim 1, it is characterized in that, described low intermodulation switch matrix comprises 1 the 3rd radio-frequency (RF) switch, 2 low intermodulation loads and 1 the 4th radio-frequency (RF) switch, described 3rd radio-frequency (RF) switch is dpdt double-pole double-throw (DPDT) radio-frequency (RF) switch, comprise moving contact D3 and fixed contact G3, H3, described 4th radio-frequency (RF) switch is single-pole double throw RF switch, comprise moving contact D4 and fixed contact G4, H4, the output of low intermodulation 3dB electric bridge is directly connected with the input of 1 low inter-modulation duplexer, fixed contact G3 with H3 of the 3rd radio-frequency (RF) switch is connected fixed contact G4 and 1 the 3rd low intermodulation load of the 4th radio-frequency (RF) switch respectively, the fixed contact H4 of described 4th radio-frequency (RF) switch connects another 1 the 3rd low intermodulation load, moving contact D4 connects the input of another 1 low inter-modulation duplexer.
4. a kind of dual polarized antenna passive intermodulation device for quick testing as claimed in claim 1, it is characterized in that, described low intermodulation switch matrix comprises 1 the 5th radio-frequency (RF) switch, 1 the 6th radio-frequency (RF) switch, 1 the 7th radio-frequency (RF) switch and 2 the 4th low intermodulation loads, described 5th radio-frequency (RF) switch comprises fixed contact G5, H5 and moving contact D5, described 6th radio-frequency (RF) switch comprises fixed contact G6, H6 and moving contact D6, described 7th radio-frequency (RF) switch comprises fixed contact G7, H7 and moving contact D7, the moving contact D5 of the 5th radio-frequency (RF) switch is connected with the output of low intermodulation 3dB electric bridge, the moving contact D6 of the 6th radio-frequency (RF) switch is connected with the input of 1 low inter-modulation duplexer, fixed contact G5 and G6 directly connects, fixed contact H5 is directly connected with fixed contact G7, fixed contact H6 is connected with 1 the 4th low intermodulation load, fixed contact H7 is connected with another 1 the 4th low intermodulation load, moving contact D7 is connected with the input of another 1 low inter-modulation duplexer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104993883A (en) * | 2015-05-25 | 2015-10-21 | 陶长英 | Passive intermodulation rapid test device of dual-polarization antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104993883A (en) * | 2015-05-25 | 2015-10-21 | 陶长英 | Passive intermodulation rapid test device of dual-polarization antenna |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Changying Inventor after: Zou Xiaofang Inventor before: Tao Changying |
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| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |