CN204720530U - The soft coaxial radio frequency cable of a kind of measuring body low-loss - Google Patents
The soft coaxial radio frequency cable of a kind of measuring body low-loss Download PDFInfo
- Publication number
- CN204720530U CN204720530U CN201520229743.6U CN201520229743U CN204720530U CN 204720530 U CN204720530 U CN 204720530U CN 201520229743 U CN201520229743 U CN 201520229743U CN 204720530 U CN204720530 U CN 204720530U
- Authority
- CN
- China
- Prior art keywords
- flow channel
- insulating barrier
- air flow
- cable
- loss
- 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.)
- Active
Links
Abstract
The utility model discloses the soft coaxial radio frequency cable of a kind of measuring body low-loss, comprise inner wire and be coated on insulating barrier, outer conductor, screen, restrictive coating and the armour outside inner wire successively, insulating barrier is longitudinally provided with multiple equally distributed air flow channel, the cross section of air flow channel is fan-shaped, and its inside is full of air.The utility model, by longitudinally arranging fan-shaped air flow channel at insulating barrier, effectively reduces the dielectric loss of cable; Outer conductor adopts silver-plated copper strips wrapped, reduces the attenuation components of cable, it also avoid wicking simultaneously and adds the hidden danger that insulating barrier in man-hour inside sucks scaling powder; Outside outer conductor, set up screen, shield effectiveness is better; Armour adopts aluminium alloy wire braiding, effectively improves the anti-pressure ability of cable, makes insulating barrier in use can not stress deformation and affect cable performance.
Description
Technical field
The utility model relates to a kind of coaxial radio frequency cable, is specifically related to the soft coaxial radio frequency cable of a kind of measuring body low-loss.
Background technology
Modern communications is to more and more higher transmission frequency and transmission rate future development, coaxial radio frequency cable as traffic channel main media requires to have lower decay and better shielding properties, simultaneously along with the miniaturization of communication equipment, require cable dimension miniaturization and there is better mechanical performance.
In order to reduce the loss of cable, have the technical scheme that poroid air flow channel is set in insulating barrier at present, the minimum insulating material of dielectric constant is fluoroplastics, be generally 2.1, and the dielectric constant of air is approximately 1, therefore, adopt the mode introducing air in a insulating layer significantly can reduce the effective dielectric constant of insulating barrier, thus reduction cable loss, but this insulating barrier is first pressed into prefabricated rods in advance by polytetrafluoroethylene to be pushed shaping again, product manufacturing length is pushed cylinder barrel and is limited, product continuous length generally can only reach hundreds of rice, and it is high owing to pushing pressure in the insulation course of processing, the accounting of circular hole air flow channel cumulative volume in insulation cumulative volume is restricted, easily there is crackle in the air flow channel tube wall in manufacture process in insulating barrier, this will affect the performance and used life of final products.
In order to address these problems; usually insulating barrier can be used instead perfluoroethylene-propylene that melting extrudes or perfluoroalkoxy resin makes; 5-15 ligule air flow channel is left in insulating barrier; the accounting of air flow channel cumulative volume in insulating barrier volume increases; and insulation is owing to being melt extrude; product continuous length is high, but the compressive property of this cable can reduce further.
In addition, the outer conductor of above-mentioned two kinds of cables all adopts tinned wird to weave and the structure of overall wicking, this outer conductor add generally need man-hour heart yearn woven after be introduced into flux bath and enter tin stove again and complete wicking process, at braiding heart yearn by the process of flux bath, scaling powder can enter into the poroid air flow channel of insulating barrier by heart yearn joint or insulation defect place, this can cause very large impact to the electrical property such as decay, standing wave of cable.The cable of this outer conductor structure can bend several times, but increasing along with number of bends, the performance of cable can decrease, and even causes outer conductor to rupture.
Utility model content
Technical problem to be solved in the utility model is to provide the soft coaxial radio frequency cable of a kind of measuring body low-loss, and this cable, while significantly reducing insulating barrier effective dielectric constant, reducing the wastage, guarantees that cable has good compressive property and bending property.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The soft coaxial radio frequency cable of a kind of measuring body low-loss, the insulating barrier comprising inner wire and be coated on successively outside inner wire, outer conductor, screen, restrictive coating and armour, inner wire is many single or mutually stranded silver-plated circular copper wires, insulating barrier and restrictive coating are by perfluoroethylene-propylene or perfluoroalkoxy resin extrusion molding, insulating barrier is longitudinally provided with multiple equally distributed air flow channel, the cross section of air flow channel is fan-shaped, and its inside is full of air, outer conductor forms by silver-plated copper strips is wrapped, screen is woven by silver-coated copper wire and forms, armour is that aluminium alloy wire braiding forms.
Described air flow channel is 3-6.
Described air flow channel is 4-5.
Between described air flow channel and inner wire, between adjacent vacant flow channel and the outer intermarginal insulation thickness of air flow channel and insulating barrier be more than 0.25mm.
The accounting of described air flow channel cumulative volume in insulating barrier volume is 30-70%.
Compared with prior art, the utility model has the advantages that: by longitudinally arranging fan-shaped air flow channel at insulating barrier, effectively reduce the dielectric loss of cable; Outer conductor adopts silver-plated copper strips wrapped, reduces the attenuation components of cable, it also avoid wicking simultaneously and adds the hidden danger that insulating barrier in man-hour inside sucks scaling powder; Outside outer conductor, set up screen, shield effectiveness is better; Armour adopts aluminium alloy wire braiding, effectively improves the anti-pressure ability of cable, makes insulating barrier in use can not stress deformation and affect cable performance.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Wherein, 1, inner wire, 2, insulating barrier, 21, air flow channel, 3, outer conductor, 4, screen, 5, restrictive coating, 6, armour.
Embodiment:
As shown in Figure 1, the soft coaxial radio frequency cable of a kind of measuring body low-loss, comprises inner wire 1 and is coated on insulating barrier 2, outer conductor 3, screen 4, restrictive coating 5 and the armour 6 outside inner wire 1 successively, wherein:
The many single or mutually stranded silver-plated circular copper wires that inner wire 1 adopts conductance higher, thus reduce the cable attenuation component caused by inner wire 1, increase the flexibility of cable;
Insulating barrier 2 and restrictive coating 5 are by perfluoroethylene-propylene or perfluoroalkoxy resin extrusion molding, restrictive coating 5 thickness is 0.15-0.3mm, insulating barrier 2 is longitudinally provided with 4-5 equally distributed air flow channel 21, the cross section of air flow channel 21 is fan-shaped, and its inside is full of air, between air flow channel 21 and inner wire 1, between adjacent vacant flow channel 21 and the outer intermarginal insulation thickness of air flow channel 21 and insulating barrier 2 be more than 0.25mm, to guarantee that this insulating barrier 2 has enough intensity, the accounting of air flow channel 21 cumulative volume in insulating barrier 2 volume is 30-70%, to guarantee that the effective dielectric constant of this insulating barrier 2 controls at 1.25-1.7,
Outer conductor 3 forms by silver-plated copper strips is wrapped, and the wrapped rate of putting up is not less than 40%, and 100% tubular outer conductor 3 covered of wrapped formation and the high conductivity of silver-plated copper strips effectively reduce the cable attenuation component caused by outer conductor, reduce cable loss;
Screen 4 is woven by silver-coated copper wire and forms, count more than 90%, and improve the shield effectiveness of cable further, the diameter of silver-coated copper wire is determined, preferred 0.12mm, 0.14mm, 0.16mm, 0.20mm or 0.24mm according to outer conductor 3;
Armour 6 forms for aluminium alloy wire braiding, and count more than 88%, improves the anti-compression property of cable, makes insulating barrier 2 in use can not stress deformation and affect cable performance.
Claims (5)
1. the soft coaxial radio frequency cable of measuring body low-loss, it is characterized in that: the insulating barrier comprising inner wire and be coated on successively outside inner wire, outer conductor, screen, restrictive coating and armour, described inner wire is many single or mutually stranded silver-plated circular copper wires, described insulating barrier and restrictive coating are by perfluoroethylene-propylene or perfluoroalkoxy resin extrusion molding, described insulating barrier is longitudinally provided with multiple equally distributed air flow channel, the cross section of described air flow channel is fan-shaped, and its inside is full of air, described outer conductor forms by silver-plated copper strips is wrapped, described screen is woven by silver-coated copper wire and forms, described armour is that aluminium alloy wire braiding forms.
2. the soft coaxial radio frequency cable of the measuring body low-loss of one according to claim 1, is characterized in that: described air flow channel is 3-6.
3. the soft coaxial radio frequency cable of the measuring body low-loss of one according to claim 2, is characterized in that: described air flow channel is 4-5.
4. the soft coaxial radio frequency cable of the measuring body low-loss of one according to claim 1, is characterized in that: between described air flow channel and inner wire, between adjacent vacant flow channel and the intermarginal outward insulation thickness of air flow channel and insulating barrier be more than 0.25mm.
5. the soft coaxial radio frequency cable of the measuring body low-loss of one according to claim 1, is characterized in that: the accounting of described air flow channel cumulative volume in insulating barrier volume is 30-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229743.6U CN204720530U (en) | 2015-04-16 | 2015-04-16 | The soft coaxial radio frequency cable of a kind of measuring body low-loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229743.6U CN204720530U (en) | 2015-04-16 | 2015-04-16 | The soft coaxial radio frequency cable of a kind of measuring body low-loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720530U true CN204720530U (en) | 2015-10-21 |
Family
ID=54319503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520229743.6U Active CN204720530U (en) | 2015-04-16 | 2015-04-16 | The soft coaxial radio frequency cable of a kind of measuring body low-loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417945A (en) * | 2018-02-02 | 2018-08-17 | 综艺超导科技有限公司 | A kind of hot hard coaxial cable of low-loss air-tightness of low drain for cryogenic system |
| CN108847302A (en) * | 2018-06-22 | 2018-11-20 | 江苏艾力升电缆有限公司 | A kind of coaxial cable with low-loss shielded layer |
| CN109243702A (en) * | 2018-11-05 | 2019-01-18 | 河南省水利勘测设计研究有限公司 | Weak capacity current type medium-pressure power cable |
| CN110379546A (en) * | 2019-07-13 | 2019-10-25 | 神宇通信科技股份公司 | A kind of insulated conductor that inner conductor is connected to air duct and its production technology |
-
2015
- 2015-04-16 CN CN201520229743.6U patent/CN204720530U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417945A (en) * | 2018-02-02 | 2018-08-17 | 综艺超导科技有限公司 | A kind of hot hard coaxial cable of low-loss air-tightness of low drain for cryogenic system |
| CN108847302A (en) * | 2018-06-22 | 2018-11-20 | 江苏艾力升电缆有限公司 | A kind of coaxial cable with low-loss shielded layer |
| CN109243702A (en) * | 2018-11-05 | 2019-01-18 | 河南省水利勘测设计研究有限公司 | Weak capacity current type medium-pressure power cable |
| CN110379546A (en) * | 2019-07-13 | 2019-10-25 | 神宇通信科技股份公司 | A kind of insulated conductor that inner conductor is connected to air duct and its production technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204720530U (en) | The soft coaxial radio frequency cable of a kind of measuring body low-loss | |
| CN204348880U (en) | A kind of Low ESR low leakage half coaxial flexible cable | |
| CN105788706A (en) | Aerospace-used star quad communication cable and manufacturing method thereof | |
| CN106057284A (en) | 1394b data bus cable for aviation and preparation method thereof | |
| CN201191531Y (en) | High-shielding microwave coaxial cable | |
| CN204706380U (en) | A kind of low temperature resistant anticorrosion armoured control cable | |
| CN204732189U (en) | The soft Teflon coaxial cable of PTFE with wrapped sheath | |
| CN104733091A (en) | Sliver-plated aluminum alloy armoring and insulation shielding flexible cable | |
| CN204066800U (en) | A kind of high-temperature resistant low-noise radio frequency cable | |
| CN201549267U (en) | Super flexible weaved coaxial communication cable | |
| CN212303165U (en) | High-temperature-resistant and high-strength Teflon low-noise cable | |
| CN203433894U (en) | High-temperature-resistant super category-5 communication cable | |
| CN208820039U (en) | A kind of Novel rope pipe spiral insulating radio frequency cable | |
| CN205722835U (en) | A kind of Aero-Space star quad stranding communication cable | |
| CN108133784A (en) | A kind of SAS cables and its production technology | |
| CN204991185U (en) | Communication cable for aerospace | |
| CN208589295U (en) | A kind of high shielding coaxial cable | |
| CN203562227U (en) | A metallurgy high-temperature-resistant power cable | |
| RU72355U1 (en) | HIGH FREQUENCY FOUR-PAIRED CABLE | |
| CN107240744B (en) | Low-loss braided cable and manufacturing method thereof | |
| CN109215879A (en) | A kind of shielded cable promoting data line transmission bandwidth rope laying techniques | |
| CN2701038Y (en) | Coaxial screening cable for communication | |
| CN205487437U (en) | Second propylene jacketed cable of high temperature resistant armor of fire control | |
| CN210296018U (en) | Flat submersible pump cable with shielding function | |
| CN105810282A (en) | High temperature resistance unsheathed shielding mounting wire and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |