CN105719729A - Radio frequency cable internal conductor and half flexible coaxial radio frequency cable - Google Patents
Radio frequency cable internal conductor and half flexible coaxial radio frequency cable Download PDFInfo
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- CN105719729A CN105719729A CN201510043084.1A CN201510043084A CN105719729A CN 105719729 A CN105719729 A CN 105719729A CN 201510043084 A CN201510043084 A CN 201510043084A CN 105719729 A CN105719729 A CN 105719729A
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Abstract
The invention relates to a radio frequency cable internal conductor and a half flexible coaxial radio frequency cable. The inner conductor of the radio frequency cable successively comprises an aluminum conductor core (7), a copper layer (6), and a silver layer (5) from the inside to the outside; the copper layer (6) wraps the outer surface of the aluminum conductor core (7); and the silver layer (5) wraps the outer layer of the copper layer (6). The radio frequency cable internal conductor and half flexible coaxial radio frequency cable adopts the silver-plated alumina as an internal conductor on the premise that the attenuation is low, the standing-wave ratio is small and the bending resistance performance is good. The price is cheap and the aluminum portion which is light replaces the heavy metal copper. As a result, the invention reduces the cost, reduces the self weight and reduces the pollution to the environment.
Description
Technical field
The present invention relates to radio-frequency cable field, in particular, relate to a kind of radio-frequency cable inner conductor and half flexible coaxial radio frequency cable.
Background technology
Half flexible coaxial radio frequency cable has use temperature range width, use that frequency is high, it is low to decay, standing-wave ratio is little and the excellent properties such as advantages of good shielding performance, is also equipped with good bending property simultaneously.Therefore use at rocket, satellite, communication, navigation, electronic countermeasure, measuring and controlling equipment etc. the transmission system of radiofrequency signal obtains and be increasingly widely applied.
Half general flexible coaxial radio frequency cable has structure as shown in Figure 1, include coaxial inner wire 1, insulator 2, outer conductor 3 and sheath 4 from inside to outside successively, such as, Chinese utility model patent CN2824321Y discloses a kind of semi-flexible coaxial radio frequency cable, from inside to outside formed inner wire by silver-copper plated steel clad wire or silver-coated copper wire successively, inner wire outer cladding insulating barrier, the braiding alloy wire of insulating barrier outer cladding entirety wicking is as outer conductor, and outermost layer is restrictive coating.
In this kind half flexible coaxial radio frequency cable, inner wire 1 plays main signal conduction, generally adopts copper cash or silver-coated copper wire, but, the copper in inner wire 1 belongs to scarce resource, and scarcity of resources is therefore relatively costly；It addition, copper belongs to heavy metal, not only ratio is great so that the deadweight of half flexible coaxial radio frequency cable is relatively big, and after discarding, environment can cause bigger pollution.
Summary of the invention
The technical problem to be solved in the present invention is in that: provide a kind of radio-frequency cable inner conductor and half flexible coaxial radio frequency cable, and the price solving to cause owing to adopting silver-plated copper for half flexible coaxial radio frequency cable in prior art is high, from heavy sensation of the body and the defect that can cause environmental pollution
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of radio-frequency cable inner conductor, it is characterized in that, from inside to outside including aluminium conductor core, layers of copper, silver layer successively, described layers of copper is coated on the outer surface of described aluminium conductor core, and described silver layer is coated on the outer surface of described layers of copper.
In radio-frequency cable inner conductor provided by the invention, described aluminium conductor core, layers of copper, silver layer are sequentially coaxially arranged.
In radio-frequency cable inner conductor provided by the invention, described aluminium conductor core and layers of copper volume ratio in described radio-frequency cable inner conductor are 1:9～2:8.
In radio-frequency cable inner conductor provided by the invention, described aluminium conductor core and layers of copper volume ratio in described radio-frequency cable inner conductor are 3:20.
Present invention also offers a kind of half flexible coaxial radio frequency cable, include coaxial inner wire, insulator, outer conductor and sheath from inside to outside successively, described inner wire is the radio-frequency cable inner conductor described in aforementioned any one.
The beneficial effect comprise that: keep that decay is low, standing-wave ratio is little and under the premise of bending resistance function admirable, adopt silver-plated copper coating aluminum as inner wire, the aluminum portions of low price and light specific gravity replaces heavy metal copper, reduces cost, alleviates deadweight and reduce the pollution to environment.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of half flexible coaxial radio frequency cable in prior art；
Fig. 2 is the structural representation of radio-frequency cable inner conductor preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.
Existing half flexible coaxial radio frequency cable has structure as shown in Figure 1, include coaxial inner wire 1, insulator 2, outer conductor 3 and sheath 4 from inside to outside successively, but the copper in inner wire 1 belongs to scarce resource, relatively costly, and the ratio of copper is great so that half flexible coaxial radio frequency cable from great.The main innovation point of the present invention is in that, adopt silver-plated copper coating aluminum as inner wire, maintaining, decay is low, standing-wave ratio is little and under the premise of bending resistance function admirable, the aluminum portions of low price and light specific gravity replaces heavy metal copper, reduces cost, alleviates deadweight and reduce the pollution to environment.
Fig. 2 is the structural representation of radio-frequency cable inner conductor preferred embodiment of the present invention, as shown in Figure 2, radio-frequency cable inner conductor in the present embodiment from inside to outside includes aluminium conductor core 7, layers of copper 6, silver layer 5 successively, and layers of copper 6 is coated on the outer surface of aluminium conductor core 7, and silver layer 5 is coated on the outer surface of layers of copper 6.The flexibility of aluminum is better compared with the flexibility of fine copper, and therefore in silver-plated copper coating aluminum recombination line, the volume ratio of aluminum increases, and its flexibility is significantly improved；Meanwhile, in silver-plated copper coating aluminum recombination line, the volume ratio of aluminum is more big, and its substitution effects is more good, namely loss of weight, reduce cost effect more good.
In another preferred embodiment of the present invention, the aluminium conductor core 7 in radio-frequency cable inner conductor, layers of copper 6, silver layer 5 are sequentially coaxially arranged, to meet the requirements such as the low-loss of radio-frequency cable, high stable phase.
In another preferred embodiment of the present invention, aluminium conductor core 7 and the layers of copper 6 volume ratio in radio-frequency cable inner conductor are 1:9～2:8, fully to adapt to the kelvin effect of inner wire.It addition, half flexible coaxial radio frequency cable for ensureing the embodiment of the present invention is reducing cost, alleviating deadweight and while weakening the pollution to environment, remain to keep that decay is low, standing-wave ratio is little and the advantage such as bending resistance function admirable.It is further preferred that aluminium conductor core 7 and the layers of copper 6 volume ratio in radio-frequency cable inner conductor are 3:20.Table 1 illustrates that radio-frequency cable inner conductor of the present invention is when the volume ratio of aluminium conductor core 7 with layers of copper 6 is 3:20, with the comparison of existing inner wire in weight and price.
Table 1: inner wire operating weight and price comparison
| Weight (KG/KM) | Unit price (unit/KG) | Cost price (unit/KM) | |
| Silver-plated copper | 6.2 | 115 | 713 |
| Silver-plated copper coating aluminum | 2.4 | 150 | 360 |
As can be seen from Table I, every kilometer of weight of silver-plated copper coating aluminum is less than the 40% of silver-plated copper, and cost also only has the half of silver-plated copper.
Present invention also offers a kind of half flexible coaxial radio frequency cable, include coaxial inner wire 1, insulator 2, outer conductor 3 and sheath 4 from inside to outside successively, inner wire 1 is the radio-frequency cable inner conductor of aforementioned any one.That is, use the above-mentioned radio-frequency cable inner conductor mentioned to substitute the inner wire 1 in existing half flexible coaxial radio frequency cable, half flexible coaxial radio frequency cable of the present invention can be obtained.Table 2 illustrate the present invention half flexible coaxial radio frequency cable use aluminium conductor core 7 volume ratio with layers of copper 6 be 3:20 as radio-frequency cable inner conductor time behavior pattern.
The performance parameter of table 2: half flexible coaxial radio frequency cable
As can be seen from Table 2, silver-plated copper coating aluminum recombination line is adopted to do inner wire, when the volume ratio of aluminium conductor core 7 and layers of copper 6 is 3:20, the relative loss of weight 8% of gross weight of cable, basically identical with silver-plated copper inner wire of the performance parameters such as decay, third order intermodulation, standing-wave ratio, solderability, can substitute existing half flexible coaxial radio frequency cable completely and use.
Claims (5)
1. a radio-frequency cable inner conductor, it is characterized in that, from inside to outside include aluminium conductor core (7), layers of copper (6), silver layer (5) successively, described layers of copper (6) is coated on the outer surface of described aluminium conductor core (7), and described silver layer (5) is coated on the outer surface of described layers of copper (6).
2. radio-frequency cable inner conductor according to claim 1, it is characterised in that described aluminium conductor core (7), layers of copper (6), silver layer (5) are sequentially coaxially arranged.
3. radio-frequency cable inner conductor according to claim 2, it is characterised in that described aluminium conductor core (7) and the layers of copper (6) volume ratio in described radio-frequency cable inner conductor are 1:9～2:8.
4. radio-frequency cable inner conductor according to claim 3, it is characterised in that described aluminium conductor core (7) and the layers of copper (6) volume ratio in described radio-frequency cable inner conductor are 3:20.
5. one and half flexible coaxial radio frequency cable, include coaxial inner wire (1), insulator (2), outer conductor (3) and sheath (4) from inside to outside successively, it is characterized in that, described inner wire 1 is the radio-frequency cable inner conductor described in any one in Claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043084.1A CN105719729A (en) | 2015-01-28 | 2015-01-28 | Radio frequency cable internal conductor and half flexible coaxial radio frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043084.1A CN105719729A (en) | 2015-01-28 | 2015-01-28 | Radio frequency cable internal conductor and half flexible coaxial radio frequency cable |
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| CN105719729A true CN105719729A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510043084.1A Pending CN105719729A (en) | 2015-01-28 | 2015-01-28 | Radio frequency cable internal conductor and half flexible coaxial radio frequency cable |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170159A2 (en) * | 1984-07-30 | 1986-02-05 | Siemens Aktiengesellschaft | Triple conductor concentric cable |
| CN2743998Y (en) * | 2004-06-16 | 2005-11-30 | 中国电子科技集团公司第二十三研究所 | Radio-frequency microwave coaxial cable |
| CN201392878Y (en) * | 2009-04-22 | 2010-01-27 | 摩比天线技术（深圳）有限公司 | Radio-frequency coaxial cable |
| CN202513266U (en) * | 2012-02-27 | 2012-10-31 | 赣州金信诺电缆技术有限公司 | High-power corrugated-pipe radio frequency coaxial cable |
-
2015
- 2015-01-28 CN CN201510043084.1A patent/CN105719729A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170159A2 (en) * | 1984-07-30 | 1986-02-05 | Siemens Aktiengesellschaft | Triple conductor concentric cable |
| EP0170159A3 (en) * | 1984-07-30 | 1987-10-07 | Siemens Aktiengesellschaft | Triple conductor concentric cable |
| CN2743998Y (en) * | 2004-06-16 | 2005-11-30 | 中国电子科技集团公司第二十三研究所 | Radio-frequency microwave coaxial cable |
| CN201392878Y (en) * | 2009-04-22 | 2010-01-27 | 摩比天线技术（深圳）有限公司 | Radio-frequency coaxial cable |
| CN202513266U (en) * | 2012-02-27 | 2012-10-31 | 赣州金信诺电缆技术有限公司 | High-power corrugated-pipe radio frequency coaxial cable |
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Application publication date: 20160629 |