CN107768787A - A kind of metal carbon fiber radio frequency coaxial-cable - Google Patents
A kind of metal carbon fiber radio frequency coaxial-cable Download PDFInfo
- Publication number
- CN107768787A CN107768787A CN201711113876.7A CN201711113876A CN107768787A CN 107768787 A CN107768787 A CN 107768787A CN 201711113876 A CN201711113876 A CN 201711113876A CN 107768787 A CN107768787 A CN 107768787A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- cable
- radio frequency
- metal carbon
- frequency coaxial
- Prior art date
- 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.)
- Withdrawn
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 50
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 49
- 239000002184 metal Substances 0.000 title claims abstract description 49
- 239000004020 conductor Substances 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- 239000004809 Teflon Substances 0.000 claims abstract description 12
- 238000009954 braiding Methods 0.000 claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 10
- 239000002033 PVDF binder Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 238000007747 plating Methods 0.000 claims abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 229920002313 fluoropolymer Polymers 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- -1 Silver-copper Chemical compound 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- PQIOSYKVBBWRRI-UHFFFAOYSA-N Methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
Abstract
The invention discloses a kind of metal carbon fiber radio frequency coaxial-cable, include inner wire successively from inside to outside, insulating barrier, outer conductor and oversheath, wherein, the insulating barrier is porous Teflon layer, the porous Teflon layer is extruded in inner wire periphery, the outer conductor is metal carbon fiber braiding layer, and the metal carbon fiber is copper facing, nickel plating or silver-plated carbon fiber, and the oversheath is polyvinylidene fluoride layer.Metal carbon fiber radio frequency coaxial-cable provided by the invention, outer conductor metal carbon fiber braiding layer has shield effectiveness concurrently, and using the minimum fluoroplastics sheath material polyvinylidene fluoride of density, cable has transmission frequency height, small, advantages of good shielding performance is lost, the features such as high temperature resistant, flexibility are good, reliability is high, radio frequency coaxial-cable application scenario in Aero-Space equipment and system is can be widely used for, especially suitable for having to radio frequency coaxial-cable lightweight in the survey of deep space equipment and system of particular/special requirement.
Description
Technical field
The present invention relates to a kind of coaxial radio frequency cable, more particularly to a kind of metal carbon fiber radio frequency coaxial-cable.
Background technology
Coaxial cable refers to the center of circle of outer contact and center conductor on same axle center, and uses insulation material between two conductors
Expect the cable of mutually isolated structure, can effectively prevent external electromagnetic wave interference, ensure the transmitting of information；Radio frequency coaxial-cable
Refer to the coaxial cable in the interior transmitting telecommunication number of radio-frequency band (15kHz~3THz) or energy.Due to the signal of transmission
It is completely enclosed within inside outer contact, so radio-frequency cable has, transmission frequency is high, small, shielding and good in anti-interference performance is lost
The advantages that, as one of best transmission medium of high-frequency signal, it is widely used in each neck such as Aero-Space, ship, nuclear power, communication
Domain.
Existing radio frequency coaxial-cable shielding is generally formed using copper cash or silver-coated copper wire braiding, and metal screen layer can be carried effectively
High cable shield performance, but density metal is big, and cable Unit Weight is big, is not belonging to light weight cable category.As China's aviation is navigated
Its cause develops rapidly, and Aero-Space equipment and lightweight of the system to radio frequency coaxial-cable propose higher requirement.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of metal carbon fiber radio frequency coaxial-cable, both adapt to aviation
Space environment, and can effectively mitigate the radio frequency coaxial-cable of Unit Weight.
The present invention is to provide a kind of metal carbon fiber RF coaxial to solve the technical scheme that above-mentioned technical problem uses
Cable, include inner wire, insulating barrier, outer conductor and oversheath successively from inside to outside, wherein, the insulating barrier is porous polytetrafluoro
Pvdf layer, the porous Teflon layer are extruded in inner wire periphery, and the outer conductor is metal carbon fiber braiding layer, described
Oversheath is polyvinylidene fluoride layer.
Above-mentioned metal carbon fiber radio frequency coaxial-cable, wherein, the metal carbon fiber is that copper facing, nickel plating or silver-plated carbon are fine
Dimension.
Above-mentioned metal carbon fiber radio frequency coaxial-cable, wherein, the density of material of the metal carbon fiber braiding layer is
2.5g/cm3~3.0g/cm3, count is 80%~85%.
Above-mentioned metal carbon fiber radio frequency coaxial-cable, wherein, circular hole cuts in the porous Teflon layer
Area accounts for the 70%-75% of insulation global sections product, and the density degree of porous Teflon insulating barrier is 0.53g/cm3~
0.64g/cm3。
Above-mentioned metal carbon fiber radio frequency coaxial-cable, wherein, the inner wire be single copper cash, single silver-coated copper wire or
Single silver-plated copper coating aluminum line.
Present invention contrast prior art has following beneficial effect：Metal carbon fiber RF coaxial electricity provided by the invention
Cable, outer conductor metal carbon fiber braiding layer have shield effectiveness concurrently, substitute the heavy silver-plated copper foil metal outer conductor of tradition and go
Except the screen layer in traditional cable, and using the minimum fluoroplastics sheath material polyvinylidene fluoride of density, cable, which has, to be passed
The features such as defeated frequency is high, small, advantages of good shielding performance is lost, and high temperature resistant, flexibility are good, reliability is high, also with the advantage such as in light weight,
Radio frequency coaxial-cable application scenario in Aero-Space equipment and system is can be widely used for, especially suitable for light to radio frequency coaxial-cable
Quantization has in the survey of deep space equipment and system of particular/special requirement.
Brief description of the drawings
Fig. 1 is metal carbon fiber radio frequency coaxial-cable structural representation of the present invention.
In figure：1 inner wire, 2 circular holes, 3 insulating barriers, 4 outer conductors, 5 oversheaths.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is referred to, metal carbon fiber radio frequency coaxial-cable provided by the invention, includes inner wire 1 successively from inside to outside,
Insulating barrier 3, outer conductor 4 and oversheath 5, wherein, the insulating barrier 3 is porous Teflon layer, the porous polytetrafluoroethyl-ne
Alkene layer is extruded in the periphery of inner wire 1, and the outer conductor 4 is metal carbon fiber braiding layer, and the metal carbon fiber is copper facing, nickel plating
Or silver-plated carbon fiber, the oversheath 5 are polyvinylidene fluoride layer.
Metal carbon fiber radio frequency coaxial-cable provided by the invention, wherein, the inner wire 1 is single copper cash, single plating
Silver-copper wire or single silver-plated copper coating aluminum line, these materials not only high temperature resistant, and transmission signal ability is strong.Gold provided by the invention
Belong to carbon fiber radio frequency coaxial-cable, there is excellent mechanical performance and electric property, while can effectively mitigate cable Unit Weight
Metal carbon fiber radio frequency coaxial-cable.This metal carbon fiber radio frequency coaxial-cable not only have transmission frequency is high, loss is small,
Advantages of good shielding performance, the features such as high temperature resistant, flexibility are good, reliability is high, also has the advantage such as in light weight.
Metal carbon fiber radio frequency coaxial-cable provided by the invention, insulating barrier 3 uses porous Teflon layer, described more
Hole polytetrafluoroethylene floor density is 0.5g/cm3~0.7g/cm3.By porous circular die, it is extruded in outside inner wire, passes through tune
The size of full-round hole can adjust the density of insulating barrier, and ptfe porous membrane has high temperature resistant grade, dielectric constant and Jie
The features such as matter loss is small, high frequency performance is stable, is as one of optimal dielectric material of high temperature communication cable.
Metal carbon fiber radio frequency coaxial-cable provided by the invention, outer conductor 4 are formed using the braiding of metal carbon fiber.Metal
Carbon fiber refers to uniformly coat layer of metal using electro-plating method in carbon fiber surface, and metal is copper, nickel or silver, metal carbon fiber
Have the characteristics that temperature resistant grade is high, density is small, electric conductivity is excellent, 200 DEG C of high temperature can be born, density is in 2.5g/cm3~
3.0g/cm3Between, fabric resistor rate is less than 5 × 10-5Ω·cm.Weaving uses 16 ingot high-speed knitters, per a branch of gold of ingot
Belong to carbon fiber, braiding surfacing, uniform external diameter, count is between 80%~85%.Outer conductor 4 is this metal carbon fiber
The key of radio frequency coaxial-cable, with existing conventional tinned wird (density 8.89g/cm3) outer conductor compares, Unit Weight mitigates
More than 70%, and there is shield effectiveness, metal knitted screen layer, this metal carbon fiber radio frequency coaxial-cable unit weight can be saved
Amount can mitigate more than 40%.
Metal carbon fiber radio frequency coaxial-cable provided by the invention, its oversheath 5 are melted using polyvinylidene fluoride polymer
Melt extrusion to form.Polyvinylidene fluoride polymer is the material that combination property is more prominent in fluoroplastics, density 1.75g/cm3~
1.79g/cm3Between, proportion is minimum in fluoroplastics sheath material, and for heatproof up to 150 DEG C, gamma ray resistant radiance can after crosslinking
Up to 100rad, conventional melt extrusion way can be used to be molded, be crosslinked after shaping by electron beam irradiation, electron beam irradiation dosage model
Enclose for 10M rad~15M rad.Cross-linking radiation polyvinylidene fluoride polymer sheath performance is more stable.
A specific embodiment, silver-coated copper wire of the inner wire 1 from diameter 1.45mm is given below；The external diameter of insulating barrier 3
For 4.00mm, it is extruded on silver-coated copper wire and is formed by porous Teflon layer；The external diameter of outer conductor 4 is 4.50mm, using nominal
Section 0.12cm2Nickel-coated carbon fibers beam braiding, count 80%；The external diameter of oversheath 5 is 5.00mm, using poly- inclined difluoro second
Alkene polymer melting extrusion simultaneously forms through electron irradiation crosslinking.The metal carbon fiber radio frequency coaxial-cable formed using said structure
Significantly reduce weight, characteristic impedance is only 50 Ω.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made
Enclose to work as and be defined by what claims were defined.
Claims (5)
1. a kind of metal carbon fiber radio frequency coaxial-cable, include inner wire (1), insulating barrier (3), outer conductor successively from inside to outside
And oversheath (5) (4), it is characterised in that：The insulating barrier (3) is porous Teflon layer, the porous Teflon
Layer mesopore is extruded in inner wire (1) periphery, and the outer conductor (4) is metal carbon fiber braiding layer, and the oversheath (5) is poly-
Vinylidene fluoride layer.
2. metal carbon fiber radio frequency coaxial-cable as claimed in claim 1, it is characterised in that the metal of the outer conductor (4)
Carbon fiber is copper facing, nickel plating or silver-plated carbon fiber.
3. metal carbon fiber radio frequency coaxial-cable as claimed in claim 1, it is characterised in that the metal carbon fiber braiding layer
Density of material is 2.5g/cm3~3.0g/cm3, count is 80%~85%.
4. metal carbon fiber radio frequency coaxial-cable as claimed in claim 1, it is characterised in that the porous Teflon layer
(3) sectional area of circular hole (2) accounts for the 70%-75% of insulation global sections product, the density degree of porous Teflon insulating barrier in
For 0.53g/cm3~0.64g/cm3。
5. metal carbon fiber radio frequency coaxial-cable as claimed in claim 1, it is characterised in that the inner wire (1) is single
Copper cash, single silver-coated copper wire or single silver-plated copper coating aluminum line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113876.7A CN107768787A (en) | 2017-11-13 | 2017-11-13 | A kind of metal carbon fiber radio frequency coaxial-cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113876.7A CN107768787A (en) | 2017-11-13 | 2017-11-13 | A kind of metal carbon fiber radio frequency coaxial-cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107768787A true CN107768787A (en) | 2018-03-06 |
Family
ID=61272368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711113876.7A Withdrawn CN107768787A (en) | 2017-11-13 | 2017-11-13 | A kind of metal carbon fiber radio frequency coaxial-cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107768787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134169A (en) * | 2017-12-06 | 2018-06-08 | 中天科技装备电缆有限公司 | A kind of metal carbon fiber radio frequency coaxial-cable |
-
2017
- 2017-11-13 CN CN201711113876.7A patent/CN107768787A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134169A (en) * | 2017-12-06 | 2018-06-08 | 中天科技装备电缆有限公司 | A kind of metal carbon fiber radio frequency coaxial-cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
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| WW01 | Invention patent application withdrawn after publication |