CN110470874A - A kind of Antenna testing system and its cable-assembly - Google Patents
A kind of Antenna testing system and its cable-assembly Download PDFInfo
- Publication number
- CN110470874A CN110470874A CN201910862151.0A CN201910862151A CN110470874A CN 110470874 A CN110470874 A CN 110470874A CN 201910862151 A CN201910862151 A CN 201910862151A CN 110470874 A CN110470874 A CN 110470874A
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- CN
- China
- Prior art keywords
- cable
- antenna
- testing system
- test
- assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/24—Transmission-line, e.g. waveguide, measuring sections, e.g. slotted section
-
- 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
Abstract
The present invention relates to a kind of Antenna testing system and its cable-assemblies, wherein the cable-assembly of Antenna testing system includes: cable and at least one shielded tube；The shielded tube is absorbing material；The cable is set between the tested antenna and Network Analyzer；The shielded tube is sheathed on the cable.In the present invention, by the way that shielded tube is arranged on the cable between tested antenna and Network Analyzer, it eliminates in cable and avoids the influence that the test of the tested antenna radiation pattern in magnetic field caused by the electric current generates because antenna-configuration impedance mismatches the electric current generated, improve test accuracy.
Description
Technical field
The present invention relates to antenna measurement field more particularly to a kind of Antenna testing system and its cable-assembly.
Background technique
Referring to Fig.1, Fig. 1 is the structural representation of the test macro used when being tested for the property to when measured piece is antenna
Figure.
The test macro includes endless glide 1 ', and endless glide 1 ' is above provided with the test probe 2 ' that can be slid on.
Measured piece positioned at the center of endless glide 1 ' is antenna 4 ', and one end and the test probe 2 ' of Network Analyzer 3 ' are electrically connected
It connects, the other end is connect by cable 5 ' with antenna 4 '.It is tested by 4 ' radiance of the Network Analyzer 3 ' to antenna.
But when carrying out the test of antenna performance using the above structure, the test error of measured piece antenna is bigger than normal, this field
Technical staff passes through various adjustment, is still difficult to find problem place.
Summary of the invention
To overcome the above problem in the prior art at least to a certain extent, the present invention provides a kind of Antenna testing system
And its cable-assembly.
In a first aspect, the present invention provides a kind of cable-assemblies of Antenna testing system, comprising: cable and at least one screen
Cover casing；The shielded tube is absorbent structure；The cable is set between test antenna and the Network Analyzer；It is described
Shielded tube is sheathed on the cable.Further, in the cable-assembly of above-mentioned Antenna testing system, the shielded tube is more
A magnetic bead；The magnetic bead sequentially passes through the cable.
Further, in the cable-assembly of above-mentioned Antenna testing system, the multiple magnetic bead interval setting.
Further, in the cable-assembly of above-mentioned Antenna testing system, the magnetic bead is the ferromagnetic pearl of iron oxygen.
Further, in the cable-assembly of above-mentioned Antenna testing system, the Connection Density of the magnetic bead is left according to cable
The distance of the test antenna gradually becomes smaller.
Second aspect, the present invention also provides a kind of Antenna testing systems, comprising:
Endless glide；
The test probe being set in the endless glide；
It is set to the test antenna of the endless glide the center point；
The Network Analyzer being connect with the test antenna by cable-assembly；
The cable-assembly includes:
Cable and at least one shielded tube；
The shielded tube is absorbent structure；
The cable is set between test antenna and the Network Analyzer；
The shielded tube is sheathed on the cable.
Further, in above-mentioned Antenna testing system, the shielded tube is multiple magnetic beads；The magnetic bead sequentially passes through institute
State cable.
Further, in above-mentioned Antenna testing system, the magnetic bead is the ferromagnetic pearl of iron oxygen.
Further, in above-mentioned Antenna testing system, the multiple magnetic bead interval setting.
Further, in above-mentioned Antenna testing system, the Connection Density of the magnetic bead leaves the test days according to cable
The distance of line gradually becomes smaller.
In the present invention, by the way that shielded tube is arranged on the cable between tested antenna and Network Analyzer, electricity is eliminated
Because antenna-configuration impedance mismatches the electric current generated in cable, eliminates magnetic field caused by the electric current and be tested antenna radiation pattern
The influence generated is tested, test accuracy is improved.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is that in the related technology, when measured piece is antenna, the test system structure use when radiance test shows
It is intended to；
Fig. 2 is in Antenna testing system shown in FIG. 1, and the cable of connection measured piece and net point generates the schematic diagram of electric current；
Fig. 3 is the structural schematic diagram of cable-assembly embodiment of the present invention；
Fig. 4 be include cable-assembly shown in Fig. 3 test macro embodiment structural schematic diagram.
Wherein:
1 ' endless glide
2 ' test probes
3 ' Network Analyzers
4 ' test antennas
5 ' cables
1 endless glide
2 test probes
3 Network Analyzers
4 antennas
5 cable-assemblies
51 cables
52 magnetic beads
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In face of problems of the prior art, the searching of applicant's repetition test causes Antenna Pattern Measuring Test error larger
The reason of, discovery:
This body structure of measured piece antenna leads to impedance mismatch, and therefore, during the test, is produced from one end of measured piece antenna
Raw electric current, by cable, in this way, cable will generate magnetic field, the radiation in the magnetic field has an impact the test of antenna radiation pattern,
It is caused to generate error.It is in Antenna testing system shown in FIG. 1 referring to Fig. 2, Fig. 2, the tested cable with net point of connection generates
The schematic diagram of electric current.Figure it is seen that the port of test antenna 4 is because impedance mismatch generates electric current, electric current is caused interference with
The generation in magnetic field.
Referring to Fig. 3 and Fig. 4.Fig. 3 is the structural schematic diagram of cable-assembly embodiment of the present invention；Fig. 4 be include shown in Fig. 3
Cable-assembly test macro embodiment structural schematic diagram.
The present embodiment Antenna testing system, comprising: endless glide 1, test probe 2, test antenna 4,3 and of Network Analyzer
Cable-assembly 5.
Wherein, test probe 2 is set in the endless glide 1；Test antenna 4 is set to 1 center of circle of endless glide
Place；Network Analyzer 3 is connect with the test antenna 4 by cable-assembly 5；
The cable-assembly 5 includes: cable 51 and at least one shielded tube；The shielded tube is absorbent structure.It is described
Cable sets 51 and is placed between tested the test antenna 4 and Network Analyzer 3；The shielded tube is sheathed on the cable
51。
In the present invention, there is absorbent structure by what is be arranged on the cable 51 between test antenna 4 and Network Analyzer 3
Shielded tube, eliminate in cable because antenna-configuration impedance mismatches the electric current generated, eliminate caused by the electric current
Magnetic field is tested the influence that the test of antenna radiation pattern generates, and improves test accuracy.
In the present embodiment, the shielded tube is multiple magnetic beads 52；The magnetic bead 52 sequentially passes through the cable 51.It needs
It is noted that realizing that the function of casing is a kind of way of realization of the invention with multiple magnetic beads 52, one can also be used
Big casing or multiple small casings, which is not limited by the present invention.
In one embodiment, magnetic bead 52 can be the ferromagnetic pearl of iron oxygen.It is economical and practical using the magnetic bead of iron oxygen iron material.
It may also be other absorbent structures, which is not limited by the present invention.The interference magnetic generated due to impedance mismatch can be eliminated
Other materials absorbent structure also within protection scope of the present invention.
Above-mentioned multiple magnetic beads 52 can be spaced setting, and the Connection Density of magnetic bead 52 can also leave test days according to cable 51
The distance of line 4 gradually becomes smaller.For example, be spaced closer to the port of test antenna 4, between magnetic bead 52 it is smaller, from test antenna 4
The cable 51 of distance more distant place, the interval of magnetic bead 52 can be bigger.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of cable-assembly of Antenna testing system characterized by comprising
Cable and at least one shielded tube；
The shielded tube is absorbent structure；
The cable is set between test antenna and the Network Analyzer；
The shielded tube is sheathed on the cable.
2. the cable-assembly of Antenna testing system according to claim 1, which is characterized in that the shielded tube is multiple
Magnetic bead；
The magnetic bead sequentially passes through the cable.
3. the cable-assembly of Antenna testing system according to claim 2, which is characterized in that the multiple magnetic bead interval is set
It sets.
4. the cable-assembly of Antenna testing system according to claim 3, which is characterized in that the magnetic bead is that iron oxygen is ferromagnetic
Pearl.
5. the cable-assembly of Antenna testing system according to claim 4, which is characterized in that the Connection Density of the magnetic bead
It is gradually become smaller according to the distance that cable leaves the test antenna.
6. a kind of Antenna testing system characterized by comprising
Endless glide；
The test probe being set in the endless glide；
It is set to the test antenna of the endless glide the center point；
The Network Analyzer being connect with the test antenna by cable-assembly；
The cable-assembly includes:
Cable and at least one shielded tube；
The shielded tube is absorbent structure；
The cable is set between test antenna and the Network Analyzer；
The shielded tube is sheathed on the cable.
7. Antenna testing system according to claim 6, which is characterized in that
The shielded tube is multiple magnetic beads；
The magnetic bead sequentially passes through the cable.
8. Antenna testing system according to claim 7, which is characterized in that
The magnetic bead is the ferromagnetic pearl of iron oxygen.
9. Antenna testing system according to claim 8, which is characterized in that
The multiple magnetic bead interval setting.
10. Antenna testing system according to claim 9, which is characterized in that
The Connection Density of the magnetic bead gradually becomes smaller according to the distance that cable leaves the test antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862151.0A CN110470874A (en) | 2019-09-12 | 2019-09-12 | A kind of Antenna testing system and its cable-assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862151.0A CN110470874A (en) | 2019-09-12 | 2019-09-12 | A kind of Antenna testing system and its cable-assembly |
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| Publication Number | Publication Date |
|---|---|
| CN110470874A true CN110470874A (en) | 2019-11-19 |
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| CN201910862151.0A Pending CN110470874A (en) | 2019-09-12 | 2019-09-12 | A kind of Antenna testing system and its cable-assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206922A1 (en) * | 2022-04-29 | 2023-11-02 | 中国电子科技集团公司第三十八研究所 | Transmission wave-absorbing structure and antenna in-band characteristic test system |
| US11828781B2 (en) | 2022-04-29 | 2023-11-28 | 38Th Research Institute, China Electronics Technology Group Corporation | Transmission absorbing structure and antenna in-band characteristics test system |
-
2019
- 2019-09-12 CN CN201910862151.0A patent/CN110470874A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206922A1 (en) * | 2022-04-29 | 2023-11-02 | 中国电子科技集团公司第三十八研究所 | Transmission wave-absorbing structure and antenna in-band characteristic test system |
| US11828781B2 (en) | 2022-04-29 | 2023-11-28 | 38Th Research Institute, China Electronics Technology Group Corporation | Transmission absorbing structure and antenna in-band characteristics test system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191119 |