CN115241620A - Ultralow-loss phase-stable microwave coaxial cable - Google Patents
Ultralow-loss phase-stable microwave coaxial cable Download PDFInfo
- Publication number
- CN115241620A CN115241620A CN202211015213.2A CN202211015213A CN115241620A CN 115241620 A CN115241620 A CN 115241620A CN 202211015213 A CN202211015213 A CN 202211015213A CN 115241620 A CN115241620 A CN 115241620A
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- insulating layer
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- 239000010410 layer Substances 0.000 claims abstract description 63
- 239000011241 protective layer Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 25
- 229920001684 low density polyethylene Polymers 0.000 claims description 15
- 239000004702 low-density polyethylene Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
- H01P11/005—Manufacturing coaxial lines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses an ultra-low loss phase-stabilized microwave coaxial cable, which comprises a central conductor, an insulating layer, a conducting layer and an external protective layer, wherein the central conductor, the insulating layer, the conducting layer and the external protective layer are sequentially coated and connected from inside to outside; an intermediate layer is arranged between the central lead and the insulating layer; the conducting layer comprises a plurality of fifth wire cores in a circumferential array. The invention provides an ultralow-loss phase-stable microwave coaxial cable, and the insulating layer is more stable through the arrangement of a double-layer shielding layer, so that the microwave coaxial cable is suitable for practical use.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an ultralow-loss phase-stable microwave coaxial cable.
Background
In order to meet the matching requirements of modern electronic equipment, high-quality cables with low attenuation, low standing wave and high power need to be continuously developed. Coaxial Cable (Coaxial Cable) is a wire and signal transmission line, generally made of four layers of materials: the innermost is a conductive copper wire surrounded by a layer of plastic (used as an insulator or dielectric), the insulator is surrounded by a thin mesh conductor (typically copper or alloy), and the outermost layer of insulation is the outer skin. In actual use, a single-layer insulating medium is often used, and due to the arrangement, the electric field intensity at the outer channel of the insulating layer is easy to be overlarge due to the change of temperature, so that the working field intensity exceeding the actual allowable working field intensity is not stable enough, and the actual use is not facilitated.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an ultralow-loss phase-stable microwave coaxial cable.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
an ultra-low loss phase-stable microwave coaxial cable comprises a central conductor, an insulating layer, a conducting layer and an external protective layer which are sequentially coated and connected from inside to outside;
an intermediate layer is arranged between the central lead and the insulating layer;
the conducting layer comprises a plurality of fifth wire cores in a circumferential array;
the insulating layer is prepared by the following method:
a, step a: drying the low-density polyethylene in an oven, wherein the drying temperature is 80 ℃, and the drying time is 8h;
step b: and (2) dissolving dicumyl peroxide into silane, wherein the mass ratio of the dicumyl peroxide to the silane is 0.2:3.0, obtaining a first mixture;
step c: mixing the dried low-density polyethylene with the first mixture, adding an antioxidant into the first mixture, and uniformly mixing to obtain a material A, wherein the mass ratio of the low-density polyethylene to the first mixture to the antioxidant is 100:3.2:0.1;
step d: mixing low-density polyethylene and organic tin in a second mixer to obtain a material B, wherein the mass ratio of the low-density polyethylene to the organic tin is 100:0.2;
step e: mixing the material A with the material B to obtain a first mixed material, wherein the mass ratio of the material A to the material B is 95:5, tabletting and forming the first mixture to obtain a first insulating layer;
step f: and (3) taking the first insulating layer and ethylene propylene diene monomer rubber, and bonding by using an adhesive to obtain the double-layer insulating layer, wherein the adhesive is an organic silicon adhesive.
Further, the central conducting wire comprises two groups of first wires which are symmetrically arranged, and the first wires comprise two first wires which are symmetrically arranged.
Further, the middle layer comprises six second line groups, three line groups, four line groups, a fifth line group, a sixth line group and a seventh line group which are in a circumferential array;
the second line group, the third line group, the fourth line group and the fifth line group are symmetrically arranged;
the second wire group comprises two symmetrically-arranged second wire cores;
the sixth line group comprises two symmetrically-arranged third wire cores;
the seventh wire group comprises a fourth wire core and a wire core sleeve wrapping the outer layer of the fourth wire core.
The invention has the beneficial effects that:
the invention provides an ultralow-loss phase-stable microwave coaxial cable, and the insulating layer is more stable through the arrangement of a double-layer shielding layer, so that the microwave coaxial cable is suitable for practical use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship merely to facilitate description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be construed as limiting the invention.
As shown in fig. 1, the ultra-low loss phase-stable microwave coaxial cable comprises a central conductor 1, an insulating layer 2, a conductive layer 3 and an external protective layer 4, which are sequentially coated and connected from inside to outside;
wherein, the central conductor 1 is a silver-plated copper stranded wire; the insulating layer 2 is a double-layer composite insulating layer and is wrapped outside the central lead 1; the conductive layer 3 adopts a compressed stranded copper core; the outer protective layer 4 is made of high-density polyethylene material;
an intermediate layer 5 is arranged between the central lead 1 and the insulating layer 2;
the central conductor 1 comprises two groups of first line groups 11 which are symmetrically arranged, and the first line groups 11 comprise two first line cores 12 which are symmetrically arranged;
the intermediate layer 5 comprises six second line groups 51, third line groups 52, fourth line groups 53, fifth line groups 54, sixth line groups 55 and seventh line groups 56 in a circumferential array;
the second line group 51, the third line group 52, the fourth line group 53 and the fifth line group 54 are symmetrically arranged;
the second wire group 51 comprises two symmetrically arranged second wire cores 511;
the sixth line group 55 includes two symmetrically-arranged third line cores 551;
the seventh wire set 56 includes a fourth wire core 561 and a wire core sleeve 562 covering the outer layer of the fourth wire core 561;
the conductive layer 3 comprises a plurality of fifth cores 31 in a circumferential array;
the insulating layer 2 is prepared by the following method:
step a: drying the low-density polyethylene in an oven, wherein the drying temperature is 80 ℃, and the drying time is 8h;
step b: and (2) dissolving dicumyl peroxide into silane, wherein the mass ratio of the dicumyl peroxide to the silane is 0.2:3.0, obtaining a first mixture;
step c: mixing the dried low-density polyethylene with the first mixture, adding an antioxidant into the first mixture, and uniformly mixing to obtain a material A, wherein the mass ratio of the low-density polyethylene to the first mixture to the antioxidant is 100:3.2:0.1;
step d: and (2) mixing low-density polyethylene and organic tin in a second mixer to obtain a material B, wherein the mass ratio of the low-density polyethylene to the organic tin is 100:0.2;
step e: mixing the material A with the material B to obtain a first mixed material, wherein the mass ratio of the material A to the material B is 95:5, tabletting and forming the first mixture to obtain a first insulating layer;
step f: taking a first insulating layer and ethylene propylene diene monomer rubber, and bonding the first insulating layer and the ethylene propylene diene monomer rubber by using an adhesive to obtain a double-layer insulating layer, wherein the adhesive is an organic silicon adhesive;
the insulating layer prepared by the method has good insulating effect and is suitable for practical use.
In the actual use process, the insulating layer is more stable through the arrangement of the double-layer shielding layer, and the insulating layer is suitable for actual use.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (3)
1. The utility model provides an ultra-low loss steady phase microwave coaxial cable which characterized in that: comprises a central lead (1), an insulating layer (2), a conducting layer (3) and an external protective layer (4) which are sequentially coated and connected from inside to outside;
an intermediate layer (5) is arranged between the central lead (1) and the insulating layer (2);
the conductive layer (3) comprises a plurality of fifth cores (31) in a circumferential array;
wherein the insulating layer (2) is prepared by the following method:
step a: drying the low-density polyethylene in an oven, wherein the drying temperature is 80 ℃, and the drying time is 8h;
step b: and (2) fusing dicumyl peroxide into silane, wherein the mass ratio of the dicumyl peroxide to the silane is 0.2:3.0, obtaining a first mixture;
step c: mixing the dried low-density polyethylene with the first mixture, adding an antioxidant into a first mixer, and uniformly mixing to obtain a material A, wherein the mass ratio of the low-density polyethylene to the first mixture to the antioxidant is 100:3.2:0.1;
step d: mixing low-density polyethylene and organic tin in a second mixer to obtain a material B, wherein the mass ratio of the low-density polyethylene to the organic tin is 100:0.2;
step e: mixing the material A with the material B to obtain a first mixed material, wherein the mass ratio of the material A to the material B is 95:5, tabletting and forming the first mixture to obtain a first insulating layer;
step f: and (3) taking the first insulating layer and the ethylene propylene diene monomer, and bonding by using an adhesive to obtain the double-layer insulating layer, wherein the adhesive is an organic silicon adhesive.
2. The ultra-low loss phase-stable microwave coaxial cable of claim 1, wherein: the central conducting wire (1) comprises two groups of first wire cores (11) which are symmetrically arranged, and the first wire groups (11) comprise two first wire cores (12) which are symmetrically arranged.
3. The ultra-low loss phase-stable microwave coaxial cable of claim 1, wherein: the middle layer (5) comprises six second line groups (51), third line groups (52), fourth line groups (53), fifth line groups (54), sixth line groups (55) and seventh line groups (56) which are in a circumferential array;
the second line group (51), the third line group (52), the fourth line group (53) and the fifth line group (54) are symmetrically arranged;
the second wire group (51) comprises two symmetrically-arranged second wire cores (511);
the sixth line group (55) comprises two symmetrically-arranged third line cores (551);
the seventh wire group (56) comprises a fourth wire core (561) and a wire core sleeve (562) coated on the outer layer of the fourth wire core (561).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015213.2A CN115241620A (en) | 2022-08-23 | 2022-08-23 | Ultralow-loss phase-stable microwave coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211015213.2A CN115241620A (en) | 2022-08-23 | 2022-08-23 | Ultralow-loss phase-stable microwave coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115241620A true CN115241620A (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211015213.2A Pending CN115241620A (en) | 2022-08-23 | 2022-08-23 | Ultralow-loss phase-stable microwave coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115241620A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203179577U (en) * | 2013-03-11 | 2013-09-04 | 安徽纵横高科电缆股份有限公司 | Railway carriage centralized control cable |
| CN106084409A (en) * | 2016-07-08 | 2016-11-09 | 浙江太湖远大新材料股份有限公司 | Zero halogen flame resistance polyethylene sheath insulation material and preparation method thereof |
| CN212011213U (en) * | 2020-06-01 | 2020-11-24 | 上海淇玥高温线缆有限公司 | Low-loss stable-phase coaxial radio-frequency cable |
-
2022
- 2022-08-23 CN CN202211015213.2A patent/CN115241620A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203179577U (en) * | 2013-03-11 | 2013-09-04 | 安徽纵横高科电缆股份有限公司 | Railway carriage centralized control cable |
| CN106084409A (en) * | 2016-07-08 | 2016-11-09 | 浙江太湖远大新材料股份有限公司 | Zero halogen flame resistance polyethylene sheath insulation material and preparation method thereof |
| CN212011213U (en) * | 2020-06-01 | 2020-11-24 | 上海淇玥高温线缆有限公司 | Low-loss stable-phase coaxial radio-frequency cable |
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