CN204143917U - A kind of low-loss low intermodulation high frequency flexible cable - Google Patents
A kind of low-loss low intermodulation high frequency flexible cable Download PDFInfo
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- CN204143917U CN204143917U CN201420533415.0U CN201420533415U CN204143917U CN 204143917 U CN204143917 U CN 204143917U CN 201420533415 U CN201420533415 U CN 201420533415U CN 204143917 U CN204143917 U CN 204143917U
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- low
- high frequency
- flexible cable
- wire
- loss
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Abstract
The utility model relates to a kind of low-loss low intermodulation high frequency flexible cable, be followed successively by heat exchange catheter, inner wire, insulating barrier, metal lenticular wire braided outer conductor layer and restrictive coating from inside to outside, be covered with between the outer and metal lenticular wire braided outer conductor layer of insulating barrier that one deck Copper Foil is vertical wrap, metal lenticular wire braided outer conductor layer is the braid that bare copper wire lenticular wire weaves with 22 forms that change.The utility model has Stability Analysis of Structures, frequency is widened, the advantage of performance optimization, can reduce the interference to signal, improves the transmission quality of signal and the transmission performance of base station.
Description
Technical field
The utility model relates to a kind of low-loss low intermodulation high frequency flexible cable, belongs to field of cable technology.
Background technology
Weaving type coaxial cable for high frequency the most frequently used in the market, more and more be used in 4G construction, such cable is because of its good flexibility, and current short-distance transmission, the use of RF cable between antenna and base station well substituted, but since TD builds, the intermodulation of domestic and international product to the band requirement of cable and product requires all more and more higher, frequency range is used even to require to reach 5.8GHz, intermodulation requires to reach≤more than-150dBc, but for the Weaving type cable of routine, its decay is large, the inferior position of intermodulation difference affects the large-scale use of this series products always, in 4G construction, the intermodulation of antenna reaches≤more than-150dBc all, as the Weaving type cable transmitting RRU and aerial signal, intermodulation does not reach the performance that corresponding requirement will drag down overall base station, increase interference and loss, reduce the transmission quality of signal and the transmission performance of base station.
Utility model content
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of low-loss low intermodulation high frequency flexible cable is provided, this cable has Stability Analysis of Structures, frequency is widened, the advantage of performance optimization, the interference to signal can be reduced, improve the transmission quality of signal and the transmission performance of base station.
In order to solve above technical problem, the utility model provides a kind of low-loss low intermodulation high frequency flexible cable, be followed successively by inner wire, insulating barrier, metal lenticular wire braided outer conductor layer and restrictive coating from inside to outside, be covered with between the outer and metal lenticular wire braided outer conductor layer of described insulating barrier that one deck Copper Foil is vertical wrap, described metal lenticular wire braided outer conductor layer is the braid that bare copper wire lenticular wire weaves with 22 forms that change; Described conductor center is also provided with the heat exchange catheter that inner wire described at least one velamen is wound around, and the cross section of described heat exchange catheter is regular polygon, and is uniformly distributed some small ventilating holes on described heat exchange catheter.
The technical scheme that the utility model limits further is:
Aforementioned inner wire is that many copper-clad aluminum conductors are entwined; Aforementioned dielectric layer is polyethylene foamed insulating barrier, realizes low-loss object to reach reduction dielectric constant.
Further, aforementioned low-loss low intermodulation high frequency flexible cable, described heat exchange catheter is regular hexagon polyethylene pipe; Described restrictive coating is embedded with 8-12 root wire, in order to improve the intensity of restrictive coating.
The beneficial effects of the utility model are:
The utility model, compared with conventional art, changes to the vertical bag of Copper Foil, because copper has good electric conductivity, greatly reduces the transmission attenuation of product, possess good transmission, shielding properties outside polyethylene layer; The utility model can make same frequency decay at least reduce by more than 20%, simultaneously owing to being wound with heat exchange catheter in inner wire, can be partially formed convection current in cable, ensure the working temperature of cable, improve the transmittability of cable, reduction transmission attenuation.
The utility model metal lenticular wire braided outer conductor layer, adopts circle line braiding machine, after correcting to lenticular wire carry out 2 change 2 type of weave, make, in lenticular wire braiding process, to weave smooth, without turn-ups, not overlapping, mesh is even; Braided outer conductor of the present utility model changes to copper strap wire braiding, considerably increase the covering of conductor, reduce signals leakiness, keep the softness that this cable is good simultaneously, this structure greatly reduces the loss of base station power after wiring, decreases interference and loss of signal that intermodulation under newly-built net mode produces.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference numeral: 1 inner wire, 2 insulating barriers, 3 Copper Foils indulge bag, 4 metal lenticular wire braided outer conductor layers, 5 restrictive coatings, 6 heat exchange catheter, 7 wires.
Embodiment
embodiment 1
A kind of low-loss low intermodulation high frequency flexible cable that the present embodiment provides, structure as shown in Figure 1, be followed successively by heat exchange catheter 6 from inside to outside, inner wire 1, insulating barrier 2, metal lenticular wire braided outer conductor layer 4 and restrictive coating 5, inner wire 1 is entwined for many copper-clad aluminum conductors, insulating barrier 2 is polyethylene foamed insulating barrier, be covered with one deck Copper Foil outside insulating barrier 2 and between metal lenticular wire braided outer conductor layer 4 and indulge bag 3, metal lenticular wire braided outer conductor layer 4 is the braid that bare copper wire lenticular wire weaves with 22 forms that change, 12 wires 7 are embedded with at restrictive coating, heat exchange catheter is wound around parcel by inner wire, the cross section of heat exchange catheter is regular polygon, and on heat exchange catheter, be uniformly distributed some small ventilating holes.
The present embodiment changes to the vertical bag of Copper Foil outside polyethylene layer, because copper has good electric conductivity, greatly reduces the transmission attenuation of product, possesses good transmission, shielding properties; In inner wire, be wound with heat exchange catheter, convection current can be partially formed in cable, ensure the working temperature of cable, improve the transmittability of cable, reduce transmission attenuation.The utility model can make same frequency decay at least reduce by more than 20%.Metal lenticular wire braided outer conductor layer in the present embodiment, adopt circle line braiding machine, after correcting to lenticular wire carry out 2 change 2 type of weave, make in lenticular wire braiding process, weave smooth, without turn-ups, not overlapping, mesh is even, in restrictive coating, be embedded with wire, further can improve the tensile strength of cable.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (5)
1. a low-loss low intermodulation high frequency flexible cable, be followed successively by inner wire, insulating barrier, metal lenticular wire braided outer conductor layer and restrictive coating from inside to outside, it is characterized in that: be covered with between the outer and metal lenticular wire braided outer conductor layer of described insulating barrier that one deck Copper Foil is vertical wrap, described metal lenticular wire braided outer conductor layer is the braid that bare copper wire lenticular wire weaves with 22 forms that change; Described conductor center is also provided with the heat exchange catheter that inner wire described at least one velamen is wound around, and the cross section of described heat exchange catheter is regular polygon, and is uniformly distributed some small ventilating holes on described heat exchange catheter.
2. according to the low intermodulation high frequency of the low-loss described in claim 1 flexible cable, it is characterized in that: described inner wire is that many copper-clad aluminum conductors are entwined.
3. according to the low intermodulation high frequency of the low-loss described in claim 1 flexible cable, it is characterized in that: described insulating barrier is polyethylene foamed insulating barrier.
4. low-loss according to claim 1 low intermodulation high frequency flexible cable, is characterized in that: described heat exchange catheter is regular hexagon polyethylene pipe.
5. according to the low intermodulation high frequency of the low-loss described in claim 1 flexible cable, it is characterized in that: described restrictive coating is embedded with 8-12 root wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533415.0U CN204143917U (en) | 2014-09-16 | 2014-09-16 | A kind of low-loss low intermodulation high frequency flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533415.0U CN204143917U (en) | 2014-09-16 | 2014-09-16 | A kind of low-loss low intermodulation high frequency flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143917U true CN204143917U (en) | 2015-02-04 |
Family
ID=52420586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533415.0U Expired - Fee Related CN204143917U (en) | 2014-09-16 | 2014-09-16 | A kind of low-loss low intermodulation high frequency flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297970A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of novel computer control shielded cable |
| CN118039253A (en) * | 2024-04-11 | 2024-05-14 | 四川金力电缆集团有限公司 | Flexible flat cable manufacturing equipment and cable thereof |
-
2014
- 2014-09-16 CN CN201420533415.0U patent/CN204143917U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297970A (en) * | 2015-05-14 | 2017-01-04 | 无锡市苏南电缆有限公司 | A kind of novel computer control shielded cable |
| CN106297970B (en) * | 2015-05-14 | 2018-05-04 | 无锡市苏南电缆有限公司 | A kind of computer control shielded cable |
| CN118039253A (en) * | 2024-04-11 | 2024-05-14 | 四川金力电缆集团有限公司 | Flexible flat cable manufacturing equipment and cable thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20190916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |