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Novel shielding type coaxial radio frequency cable and preparation method thereof

A radio frequency cable, shielded technology, applied in the field of new shielded coaxial radio frequency cable and its preparation, can solve the problems of offset wear, low degree of bonding, cable damage, etc. junction performance, the effect of improving mechanical properties

Active Publication Date: 2021-07-23
SICHUAN TIANYI COMHEART TELECOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the shielded coaxial RF cables are prepared by embedding and winding, and most of the shielding parts are not well combined with the inner coaxial conductor during embedding and winding. Therefore, in the process of mobile use, special Pay attention to the curing performance of the coaxial radio frequency cable, and because most of the existing coaxial radio frequency cables form a reinforced structure according to the way of winding or partition fixing, so as to improve the curing performance, and because the cable adopts a multi-layer soft shell, Highly susceptible to offset wear internally, resulting in cable damage

Method used

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  • Novel shielding type coaxial radio frequency cable and preparation method thereof
  • Novel shielding type coaxial radio frequency cable and preparation method thereof
  • Novel shielding type coaxial radio frequency cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, a new shielded coaxial radio frequency cable includes a protective sheath layer 1, a shielding layer 2, an adhesive layer 3 and an inner core conductor 4; the surface of the inner core conductor 4 is fixedly connected with The protective sheath layer 1; the contact surface between the protective sheath layer 1 and the adhesive layer 3 is provided with accommodating grooves 11; the accommodating grooves 11 are evenly distributed on the circumference of the inner core conductor 4 as the center of the circle. On the inner wall of the protective sheath layer 1, the accommodating groove 11 is filled with the shielding layer 2; the two sides of the accommodating groove 11 are embedded with buffer elastic particles 12; the buffer elastic particles 12 are along the The edges of the accommodating grooves 11 are uniformly distributed, and both ends of the accommodating grooves 11 are sealed by a sealing rubber layer 13 .

[0030] In order to further re...

Embodiment 2

[0043] Change the raw materials of protective sheath layer 1 into mass parts: 20 parts of polypropylene, 10 parts of EPDM rubber, 2 parts of anti-aging agent, 5 parts of castor oil, 3 parts of aluminum oxide and 8 parts of modified phenolic resin; The raw materials of knot layer 3 are changed to mass parts: 10 parts of ethylene-vinyl acetate copolymer, 10 parts of hydroxypropyl methylcellulose, 30 parts of polyamide resin and 15 parts of graphene polymer; the rest of the structure and formula are the same as in the embodiment 1.

Embodiment 3

[0045] Change the raw materials of the protective sheath layer 1 into parts by mass: 40 parts of polypropylene, 15 parts of EPDM rubber, 8 parts of anti-aging agent, 6 parts of castor oil, 5 parts of aluminum oxide and 10 parts of modified phenolic resin; The raw materials of knot layer 3 are changed to mass parts: 15 parts of ethylene-vinyl acetate copolymer, 15 parts of hydroxypropyl methylcellulose, 40 parts of polyamide resin and 20 parts of graphene polymer; the rest of the structure, formula and steps are the same Example 1.

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PUM

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Abstract

The invention discloses a novel shielding type coaxial radio frequency cable and a preparation method thereof, and relates to the field of radio frequency cables. The cable comprises a protective sleeve layer, a shielding layer, a bonding layer and an inner core conductor, wherein the surface of the inner core conductor is connected with the protective sleeve layer through the bonding layer, the protective sleeve layer is provided with an accommodating groove, the accommodating groove is filled with a shielding layer, buffering elastic particles are embedded in the two sides of the accommodating groove, and the two ends of the accommodating groove are sealed through sealing rubber layers. The method comprises the following steps: S1, softening skin; S2, preparing a bonding layer; S3, fixing a shielding layer; S4, fixing a protective sleeve layer, and sealing with a rubber layer; and S5, polishing and cleaning to prepare a finished cable. According to the invention, the shielding layer is arranged in the accommodating groove of the protective sleeve layer, the buffering elastic particles in the accommodating groove are matched to reduce the pressure on the cable, and the infinitesimal displacement position of the protective sleeve layer is limited through the accommodating groove, so that stable fixation is realized.

Description

technical field [0001] The invention relates to the field of radio frequency cables, in particular to a novel shielded coaxial radio frequency cable and a preparation method thereof. Background technique [0002] Coaxial cable (Coaxial Cable) is sometimes called radio frequency cable (RF Cable) or radio frequency coaxial cable, and coaxial radio frequency cable is the most commonly used structure type. Because the inner and outer conductors are in the concentric position, the electromagnetic energy is limited to propagate in the medium between the inner and outer conductors, so it has significant advantages such as small attenuation, high shielding performance, wide frequency bandwidth and stable performance. It is usually used to transmit 500 kHz to 18 kHz. megahertz of radio frequency energy. Coaxial cable has two concentric conductors, and the conductor and shield share the same axis of the cable. The most common coaxial cable consists of copper conductors separated by ...

Claims

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Application Information

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IPC IPC(8): H01B11/18H01B13/00
CPCH01B11/18H01B13/00
Inventor 黄成高小燕范建川
Owner SICHUAN TIANYI COMHEART TELECOM