CN202758665U - Low loss stationary phase coaxial cable - Google Patents
Low loss stationary phase coaxial cable Download PDFInfo
- Publication number
- CN202758665U CN202758665U CN 201220380948 CN201220380948U CN202758665U CN 202758665 U CN202758665 U CN 202758665U CN 201220380948 CN201220380948 CN 201220380948 CN 201220380948 U CN201220380948 U CN 201220380948U CN 202758665 U CN202758665 U CN 202758665U
- Authority
- CN
- China
- Prior art keywords
- layer
- coaxial cable
- rete
- low
- conductor
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a low loss stationary phase coaxial cable, comprising an internal conductor, an intermediate insulating layer, an outer conductor and an outer sheath successively arranged from inside to outside; the outer conductor comprises an alloy belt layer, a fluoroplastic film layer and a metal wire woven mesh layer successively arranged from inside to outside. The fluorine plastic layer is an FEP film layer or a PFA film layer or a PTFE film layer or an ETFE layer. The thickness of the fluoroplastic film layer is less than 0.5 mm. The outer conductor does not employ an original alloy belt-metal composite film-metal wire (i.e. conductor-conductor-conductor) structure and replaces the intermediate metal composite film with the fluoroplastic film layer. The fluoroplastic film layer is a soft plastics layer, has good heatproof performance and can keep excellent mechanical performance in a wide temperature scope. When operating temperatures change, the fluoroplastic film layer between the alloy belt layer and the metal wire woven mesh layer can avoid forming gap between among layers of the outer conductor and thereby can avoid looseness of a cable mechanical structure.
Description
Technical field
The utility model relates to telecommunication cable, more particularly, relates to a kind of low-loss phase-stable coaxial cable.
Background technology
In existing low-loss phase-stable coaxial cable (hereinafter to be referred as cable), comprise the inner wire, intermediate insulating layer, outer conductor and the oversheath that set gradually from inside to outside, wherein, outer conductor comprises alloy belt, metal composite rete and the metal wire woven mesh layer that sets gradually from inside to outside.In the process of this cable of preparation, usually successively alloy belt, metal composite rete and metal wire woven mesh layer are surrounded on the intermediate insulating layer from inside to outside.For this cable with outer conductor of sandwich construction, when it is worked under hot conditions (for example 125 ℃ temperature) or low temperature, because the dilation coefficient in the outer conductor between each layer structure is different, so that produce between layers the space, cause the internal structure of cable loose, thereby the mechanical stability of cable decline to a great extent.For example, this cable is carried out the performance of reliability test to observe it at high temperature work.At first cable is carried out 48 hours high temperature storages of 125 ℃, subsequently it is carried out random vibration.The Insertion Loss rate of change that finally detects cable surpasses 200%, and the mechanical phase fluctuation range has surpassed 3.00 °.
The utility model content
The technical problems to be solved in the utility model is to form the interlayer gap for the interlayer structure in the outer conductor of cable in the prior art owing to coefficient of expansion difference under variations in temperature, thereby so that the defective that the mechanical stability of cable reduces provides a kind of low-loss phase-stable coaxial cable and preparation method thereof and preparation method thereof.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of low-loss phase-stable coaxial cable is provided, comprise the inner wire, intermediate insulating layer, outer conductor and the oversheath that set gradually from inside to outside, wherein, described inner wire comprises base material and serving thereof, wherein said base material is yellow gold material base material, and described serving is the ag material serving; Described outer conductor comprises alloy belt, fluoroplastics rete and the metal wire woven mesh layer that sets gradually from inside to outside.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, described fluoroplastics rete is fluorinated ethylene propylene (FEP) rete or tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer rete or polytetrafluoroethylene rete or ethene and TFE copolymer rete.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, the thickness of described fluoroplastics rete is less than 0.5mm.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, the proportioning of described yellow gold material is: copper 95-99.5%, silver-colored 0.5-5%.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, the proportioning of described yellow gold material is: copper is 99%, and silver is 1%.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, described intermediate insulating layer is polytetrafluoroethylene floor, and described oversheath is perfluoroethylene third rare oversheath.
In the low-loss phase-stable coaxial cable of foundation the utility model embodiment, described intermediate insulating layer is the expansion type polytetrafluoroethylene floor, and its dielectric constant is between 1.65 to 1.73.
The beneficial effect that the utility model produces is: because outer conductor no longer adopts existing alloy band-metal composite film-metal wire (being conductor-conductor-conductor) structure, but the metal composite film of centre is replaced to the fluoroplastics rete, namely outer conductor has conductor-fluoroplastics-conductor structure.This fluoroplastics rete is a kind of flexible plastics layer, and heat resistance is good, and the heatproof temperature generally can reach 200 ℃; In addition, it can keep good mechanical performance in very wide temperature range.After working temperature changed, the fluoroplastics rete of interval between alloy belt and metal wire woven mesh layer can be avoided the between layers formation gap at outer conductor, thereby avoids the mechanical structure of cable loose.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the low-loss phase-stable coaxial cable of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structural representation according to the low-loss phase-stable coaxial cable of the utility model embodiment (being designated hereinafter simply as cable).This cable comprises inner wire 100, intermediate insulating layer 200, outer conductor 300 and oversheath 400 from inside to outside successively, and wherein, outer conductor 300 comprises alloy belt 310, fluoroplastics rete 320 and the metal wire woven mesh layer 330 that sets gradually from inside to outside.Preferably, inner wire 100 is special alloy inner wire 100; Intermediate insulating layer 200 is low-density and low-loss PTFE insulating barrier; Alloy belt 310 is special alloy band screen, and metal wire woven mesh layer 330 is silver-colored line braiding; Oversheath 400 is PTFE sheath.
Particularly, for inner wire 100, radio frequency coaxial-cable is in the time of signal transmission, signal all is the surperficial one deck transmission through inner wire 100, frequency is higher more obvious in the surface transmission, therefore in embodiment of the present utility model, inner wire 100 adopts the yellow gold material as base material, electroplate.
For intermediate insulating layer 200, passed through the surface of cable inner conductor 100 in the time of electric signal transmission, to transmit at outer conductor 300 inner surfaces simultaneously, intermediate insulating layer 200 insulation suffer electromagnetic interference when being used for preventing inner wire 100 signal transmission.In embodiment of the present utility model, can select low-density polytetrafluoroethylene (LDPTFE) preparation intermediate insulating layer 200.As preferably, intermediate insulating layer 200 materials adopt the expansion type polytetrafluoroethylmaterial material, and its dielectric constant is between 1.65 to 1.73.
For outer conductor 300, cable is in transmission course, internal and external conductor 300 material diversity factoies are less, the loss of Energy Transfer is just less, the material of particularly being close to the conductor of insulating outer layer, outer conductor 300 in the cable and inner wire 100 also consist of a loop of high-frequency current transmission simultaneously, have guaranteed that like this internal signal transmission is not subjected to extraneous electromagnetic interference.Therefore, in embodiment of the present utility model, alloy belt 310 adopts identical material with inner wire 100 base materials, namely also adopts yellow gold.Fluoroplastics rete 320 is preferably fluorinated ethylene propylene (FEP) rete (FEP) or tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) rete or polytetrafluoroethylene (PTFE) rete or ethene and TFE copolymer (ETFE) rete.Usually, the thickness of fluoroplastics rete 320 is preferably 0.05mm～0.15mm less than 0.5mm.Metal wire woven mesh layer 330 is preferably silver-colored line braiding.
It can be seen, outer conductor 300 herein no longer adopts existing alloy band-metal composite film-metal wire (being conductor-conductor-conductor) structure, but the metal composite film of centre is replaced to fluoroplastics rete 320, this moment, outer conductor 300 had conductor-fluoroplastics-conductor structure.This fluoroplastics rete 320 is a kind of flexible plastics layer, and heat resistance is good, and the heatproof temperature generally can reach 200 ℃; In addition, it can keep good mechanical performance in very wide temperature range.After working temperature changed (raising or reduction), the fluoroplastics rete 320 of interval between alloy belt 310 and metal wire woven mesh layer 330 can be avoided the between layers formation gap at outer conductor 300, thereby avoids the mechanical structure of cable loose.Compare with existing cable, cable to foundation the utility model embodiment carries out identical reliability testing, wherein other structure of this cable arranges identical, just the metal composite rete with outer conductor 300 of the prior art replaces with fluoroplastics rete 320, testing result is that the Insertion Loss rate of change can be controlled in 20%, the mechanical phase fluctuation range is less than 1.25 °, and temperature phase stability index will good 500PPM than cable of the prior art.
For oversheath 400, by the requirement of airborne equipment environment for use, not only high temperature resistant, simultaneously but also can prevent from the adverse circumstances such as humidity, corrosion, being damaged in order to guarantee cable, perfluoroethylene third rare (FEP) in the preferred Teflon material of the utility model, so both guaranteed the important indicator requirements such as pliability, anti-cracking, and had and to satisfy environmental requirement.
In low-loss phase-stable coaxial cable of the present utility model, the proportioning of yellow gold material can be: copper 95-99.5%, silver-colored 0.5-5%.As preferred embodiment, the proportioning of yellow gold material is: copper is 99%, and silver is 1%.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (7)
1. a low-loss phase-stable coaxial cable comprises the inner wire, intermediate insulating layer, outer conductor and the oversheath that set gradually from inside to outside; Wherein, described inner wire comprises base material and serving thereof, and wherein said base material is yellow gold material base material, and described serving is the ag material serving, it is characterized in that described outer conductor comprises alloy belt, fluoroplastics rete and the metal wire woven mesh layer that sets gradually from inside to outside.
2. low-loss phase-stable coaxial cable according to claim 1, it is characterized in that described fluoroplastics rete is fluorinated ethylene propylene (FEP) rete or tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer rete or polytetrafluoroethylene rete or ethene and TFE copolymer rete.
3. low-loss phase-stable coaxial cable according to claim 1 is characterized in that, the thickness of described fluoroplastics rete is less than 0.5mm.
4. low-loss phase-stable coaxial cable according to claim 1 is characterized in that, the proportioning of described yellow gold material is: copper 95-99.5%, silver-colored 0.5-5%.
5. low-loss phase-stable coaxial cable according to claim 1 is characterized in that, the proportioning of described yellow gold material is: copper is 99%, and silver is 1%.
6. low-loss phase-stable coaxial cable according to claim 1 is characterized in that, described intermediate insulating layer is polytetrafluoroethylene floor, and described oversheath is perfluoroethylene third rare oversheath.
7. low-loss phase-stable coaxial cable according to claim 1 is characterized in that, described intermediate insulating layer is the expansion type polytetrafluoroethylene floor, and its dielectric constant is between 1.65 to 1.73.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380948 CN202758665U (en) | 2012-08-02 | 2012-08-02 | Low loss stationary phase coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380948 CN202758665U (en) | 2012-08-02 | 2012-08-02 | Low loss stationary phase coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758665U true CN202758665U (en) | 2013-02-27 |
Family
ID=47737834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220380948 Expired - Lifetime CN202758665U (en) | 2012-08-02 | 2012-08-02 | Low loss stationary phase coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225764A (en) * | 2015-11-09 | 2016-01-06 | 金信诺光纤光缆（赣州）有限公司 | Vibration self-constriction low-loss phase-stable coaxial cable |
| CN105632599A (en) * | 2014-11-04 | 2016-06-01 | 富士康(昆山)电脑接插件有限公司 | Cable |
-
2012
- 2012-08-02 CN CN 201220380948 patent/CN202758665U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632599A (en) * | 2014-11-04 | 2016-06-01 | 富士康(昆山)电脑接插件有限公司 | Cable |
| CN105225764A (en) * | 2015-11-09 | 2016-01-06 | 金信诺光纤光缆（赣州）有限公司 | Vibration self-constriction low-loss phase-stable coaxial cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103578646B (en) | A kind of preparation method of low-loss phase-stable coaxial cable | |
| CN203056070U (en) | Stable-phase low-loss radio-frequency coaxial cable | |
| CN101447256B (en) | Low-loss phase-stable coaxial cable and manufacture method thereof | |
| CN201522889U (en) | Data bus cable | |
| CN201820469U (en) | Polyimide composite membrane wrapped high and low temperature-resistant wire cable for aviation and aerospace | |
| CN103390449B (en) | Seamless wrapped Aviation cable of a kind of high-temperature insulation and preparation method thereof | |
| CN104143391B (en) | Production method of high-mechanical-phase stabilization type phase-stabilizing cable | |
| CN202758665U (en) | Low loss stationary phase coaxial cable | |
| CN102446580B (en) | Water-proof and corrosion-proof film-covered composite insulated wire and manufacturing method thereof | |
| CN201773626U (en) | High and low temperature-resistant composite insulated flexible symmetrical cable | |
| CN203721377U (en) | Coaxial cable resistant to high temperature for communication | |
| CN203433831U (en) | Super-flexible high temperature-resistant radio-frequency cable | |
| CN107240745B (en) | Ultralow-loss light aviation radio frequency cable and preparation method thereof | |
| CN201527841U (en) | Low-loss semi-flexible cable | |
| CN201153064Y (en) | Stabilized high-flexibility coaxial cable | |
| CN203839091U (en) | Highly mechanical phase stable type phase-compensated cable | |
| CN204166939U (en) | A kind of high-frequency low-consumption foamed coaxial cable | |
| CN203056072U (en) | Solid-core polytetrafluoroethylene insulation semi-flexible-type radio-frequency coaxial cable | |
| CN201430206Y (en) | Polytetrafluoroethylene medium semi-soft coaxial radio frequency cable | |
| CN201946364U (en) | Cable for spaceflight | |
| CN202549338U (en) | Three-core twisted wire cable with shielding and sheath for aerospace | |
| CN203056069U (en) | High-temperature resistance soft low-loss radio-frequency coaxial cable | |
| CN201927414U (en) | High-temperature resistant RF coaxial cable | |
| CN201536030U (en) | Heat-resistant flexible coaxial communication cable | |
| CN206727201U (en) | A kind of Flouride-resistani acid phesphatase low-loss phase-stable phase radio frequency coaxial-cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |