CN102394331B - Leaky coaxial cable with reflecting surface - Google Patents
Leaky coaxial cable with reflecting surface Download PDFInfo
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- CN102394331B CN102394331B CN201110431642.3A CN201110431642A CN102394331B CN 102394331 B CN102394331 B CN 102394331B CN 201110431642 A CN201110431642 A CN 201110431642A CN 102394331 B CN102394331 B CN 102394331B
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- coaxial cable
- leaky coaxial
- reflecting surface
- fixed support
- leaky
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- 238000009958 sewing Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 11
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000011514 reflex Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 206010003084 Areflexia Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
The invention discloses a leaky coaxial cable with a reflecting surface. The leaky coaxial cable with a reflecting surface comprises: a leaky coaxial cable, a reflecting surface and a fixed support. The leaky coaxial cable is arranged between the reflecting surface and the fixed support. Two end points of the fixed support are connected to the reflecting surface. The reflecting surface is a curved surface structure or a plate surface structure. By using the leaky coaxial cable with the reflecting surface of the invention, radiation field strength of one side of the leaky coaxial cable can be substantially reinforced, which means that electromagnetic wave intensity in a leaky coaxial cable working area can be increased. Through adjusting the length of the fixed support, leaky coaxial cable radiation field strength can be controlled so that the leaky coaxial cable can reach an optimal working state.
Description
technical field:
This patent relates to the communications field, relates in particular to a kind of leaky coaxial cable with reflecting surface.
background technology:
Leaky coaxial cable is a kind of feed line that configures continuous slot array, its part energy can evenly, stably be radiated outside space with the form of radiated wave, another part energy still in the inside of leaky coaxial cable along axial transmission, therefore leaky coaxial cable has the function of transmission line and radiating antenna simultaneously.The most important performance index of leaky coaxial cable are longitudinal transmission attenuation and coupling loss, and longitudinally transmission attenuation is the important indicator of describing the leaky coaxial cable internal transmission electromagnetic energy extent of damage, and longitudinally transmission attenuation is less, and transmission range is far away; And coupling loss is to describe leaky coaxial cable amount of radiation and overall target that can quantities received, coupling loss is less, and radiation field intensity is stronger.
Longitudinally transmission attenuation is larger in general couple loss less (sewing more), and on the contrary, longitudinally transmission attenuation is less for coupling loss larger (sewing fewer).In the situation that transmission range is constant, want to increase the radiated electric field of leaky coaxial cable, except increasing input power or utilizing multiplying arrangement, conventional method is the collocation method that continues of the leaky coaxial cable of several different coupling losses, but connecting method can increase the use of connector and wire jumper, bring unnecessary Insertion Loss.
summary of the invention:
The object of the invention is in order to overcome above deficiency, a kind of radiation field intensity that can significantly strengthen leaky coaxial cable one side is provided, increase a kind of leaky coaxial cable with reflecting surface of leaky coaxial cable service area electromagnetic intensity.
Object of the present invention is achieved through the following technical solutions: comprise leaky coaxial cable, reflecting surface and fixed support, leaky coaxial cable is placed between reflecting surface and fixed support, support bracket fastened two end points are connected on reflecting surface negative camber, reflecting surface is curved-surface structure or plate face structure, leaky coaxial cable is the communication leaky coaxial cable of outer conductor fluting, reflecting surface is the plastic plate that metal film is covered on metal curved surface or surface, for electromagnetic wave is reflected and is focused on, one side radiated electromagnetic wave of leaky coaxial cable is reflexed to opposite side, to strengthen the signal strength signal intensity of service area, fixed support is for being fixed on leaky coaxial cable by reflecting surface, fixed support is variable-length support, by regulating support bracket fastened length, can realize the change of reflecting surface and leaky coaxial cable spacing, on leaky coaxial cable, have and sew slotted eye, reflecting surface is fixed on leaky coaxial cable longitudinally along the line back to the direction of sewing slotted eye, has and sew slotted eye on leaky coaxial cable, and it is longitudinally along the line just to sewing the direction of slotted eye that reflecting surface is fixed on leaky coaxial cable.
The present invention compared with prior art has the following advantages:
On leaky coaxial cable, add reflecting surface, can significantly increase the electromagnetic intensity of leaky coaxial cable service area; Under the constant prerequisite of input power, can strengthen the radiation field intensity of service area one side; By adjusting support bracket fastened length, adjust the distance of leaky coaxial cable and reflecting surface, select the shape and size of suitable reflecting surface simultaneously, can control leaky coaxial cable radiation field intensity, make leaky coaxial cable reach optimum Working.
brief description of the drawings:
The leaky coaxial cable schematic diagram of Fig. 1 band reflecting surface
The first embodiment schematic diagram of the leaky coaxial cable of Fig. 2 band reflecting surface
The second embodiment schematic diagram of the leaky coaxial cable of Fig. 3 band reflecting surface
Number in the figure: 1-leaky coaxial cable, 2-reflecting surface, 3-fixed support, 4-sew slotted eye.
embodiment:
in order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.
As Fig. 1,2,3 shows the embodiment of a kind of leaky coaxial cable with reflecting surface of the present invention, Fig. 1 has provided the leaky coaxial cable schematic diagram with reflecting surface, comprise leaky coaxial cable 1, reflecting surface 2 and fixed support 3, leaky coaxial cable 1 is the communication leaky coaxial cable that general outer conductor is slotted, have transmission line and antenna dual-use function concurrently, wherein outer conductor fluting can be the various ways such as the Eight Character trough, U-shaped groove, vertical channel; Reflecting surface 2, for metal curved surface or the surperficial plastic plate that covers metal film, for electromagnetic wave being reflected and focusing on, thereby reflexes to opposite side by the radiated electromagnetic wave of leaky coaxial cable 1 one sides, to strengthen the signal strength signal intensity of service area; The longitudinal length of reflecting surface 2 is determined according to specific needs, if only need the signal strength signal intensity of a segment distance to be enhanced, the longitudinal length of reflecting surface 2 can be only one section, if need leaky coaxial cable 1 signal strength signal intensity along the line to be all enhanced, the longitudinal length of reflecting surface 2 need be identical with leaky coaxial cable 1 length; 3 fixations of fixed support, for reflecting surface 2 is fixed on to leaky coaxial cable 1, fixed support 3 is variable-length support, by regulating the length of fixed support 3, can realize the change of reflecting surface 2 and leaky coaxial cable 1 spacing.
Fig. 2 is the first embodiment schematic diagram of the leaky coaxial cable with reflecting surface, reflecting surface 2 is fixed on leaky coaxial cable 1 longitudinally along the line back to sewing slotted eye 4 directions, just to sewing the service area that a side of slotted eye 4 is the present embodiment, reflecting surface 2 by the signal reflex of sewing slotted eye 4 back sides to service area, to increase the signal strength signal intensity of service area.Now illustrate the signal humidification under this embodiment, with 1-5/8 " CO of specification
2polyethylene foamed volume leakage coaxial cable is example, its outer conductor has certain periodic Eight characters and sews slotted eye 4, in the time not increasing reflecting surface 2 and fixed support 3,95% coupling loss value of the 900MHz frequency range that this leaky coaxial cable 1 is tested in free space is 62 ± 1dB.When pressing the first embodiment of this patent, at leaky coaxial cable 1 longitudinally along the line back to the reflecting surface 2 of sewing slotted eye 4 directions and fix a metal curved surface, the radius of curvature of reflecting surface 2 is 74 ± 3mm, regulate the length of support, making the center of reflecting surface 2 and the distance of shaft centers of leaky coaxial cable 1 is 50 ± 5mm from S, 95% coupling loss value of the 900MHz frequency range that scheme one is tested in free space with the leaky coaxial cable of reflecting surface is 59 ± 5dB, with respect to the leaky coaxial cable of areflexia face, coupling loss reduces 3 ± 1dB, the leaky coaxial cable with reflecting surface of this scheme makes signal strength signal intensity be strengthened to original twice.
Fig. 3 is the second embodiment schematic diagram of the leaky coaxial cable with reflecting surface, reflecting surface 2 is fixed on leaky coaxial cable 1 longitudinally along the line just to sewing slotted eye 4 directions, the service area that is this programme back to a side of sewing slotted eye 4, reflecting surface 2 by the signal reflex of sewing slotted eye 4 fronts to service area, to increase the signal strength signal intensity of service area.Now still with above-mentioned 1-5/8 " CO of specification
2polyethylene foamed volume leakage coaxial cable is example, press the second embodiment of this patent, longitudinally just fixing the reflecting surface 2 of a metal curved surface along the line to sewing slotted eye 4 directions at leaky coaxial cable 1, radius of curvature is 85 ± 5mm, regulate the length of support, making the center of reflector 2 and the distance of shaft centers of leaky coaxial cable 1 is 61 ± 5mm from S, 95% coupling loss value of the 900MHz frequency range that leaky coaxial cable with reflecting surface 1 of scheme two is tested in free space also can reach 59 ± 1dB, the leaky coaxial cable with reflecting surface of this scheme also makes signal strength signal intensity be strengthened to original twice.
Claims (1)
1. the leaky coaxial cable with reflecting surface, it is characterized in that: comprise leaky coaxial cable (1), reflecting surface (2) and fixed support (3), described leaky coaxial cable (1) is placed between reflecting surface (2) and fixed support (3), two end points of described fixed support (3) are connected on described reflecting surface (2) negative camber, described reflecting surface (2) is curved-surface structure or plate face structure, described leaky coaxial cable (1) is the communication leaky coaxial cable of outer conductor fluting, described reflecting surface (2) is metal curved surface or the surperficial plastic plate that covers metal film, for electromagnetic wave is reflected and is focused on, one side radiated electromagnetic wave of described leaky coaxial cable (1) is reflexed to opposite side, to strengthen the signal strength signal intensity of service area, described fixed support (3) is for being fixed on leaky coaxial cable (1) by reflecting surface (2), described fixed support (3) is variable-length support, by regulating the length of fixed support (3), can realize the change of described reflecting surface (2) and leaky coaxial cable (1) spacing, on described leaky coaxial cable (1), have and sew slotted eye (4), described reflecting surface (2) is fixed on leaky coaxial cable (1) longitudinally along the line back to sewing the direction of slotted eye (4) or being fixed on leaky coaxial cable (1) longitudinally along the line just to sewing the direction of slotted eye (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431642.3A CN102394331B (en) | 2011-12-21 | 2011-12-21 | Leaky coaxial cable with reflecting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431642.3A CN102394331B (en) | 2011-12-21 | 2011-12-21 | Leaky coaxial cable with reflecting surface |
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| Publication Number | Publication Date |
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| CN102394331A CN102394331A (en) | 2012-03-28 |
| CN102394331B true CN102394331B (en) | 2014-06-25 |
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| CN201110431642.3A Active CN102394331B (en) | 2011-12-21 | 2011-12-21 | Leaky coaxial cable with reflecting surface |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106340703B (en) * | 2016-11-16 | 2022-01-25 | 江苏亨鑫科技有限公司 | High-isolation three-coaxial leaky coaxial cable |
| EP3719309A1 (en) | 2019-04-01 | 2020-10-07 | Siemens Gamesa Renewable Energy A/S | Apparatus for and method of detecting one or more properties of a rotor blade during operation of a wind turbine |
| CN113068182B (en) * | 2021-02-02 | 2023-02-10 | 上海大学 | Information protection method for urban rail transit wireless communication based on passive reconstruction surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004049A (en) * | 1962-09-04 | 1965-09-08 | Siemens Ag | Improvements in or relating to antenna arrangements |
| US3963999A (en) * | 1975-05-29 | 1976-06-15 | The Furukawa Electric Co., Ltd. | Ultra-high-frequency leaky coaxial cable |
| CN101140817A (en) * | 2006-09-06 | 2008-03-12 | 珠海汉胜工业有限公司 | Leaky coaxial cable |
| CN202373683U (en) * | 2011-12-21 | 2012-08-08 | 中天日立射频电缆有限公司 | Leaky coaxial cable with reflecting surface |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01317003A (en) * | 1988-06-17 | 1989-12-21 | Mitsubishi Electric Corp | Leakage coaxial cable |
| JPH02149104A (en) * | 1988-11-30 | 1990-06-07 | Showa Electric Wire & Cable Co Ltd | Spiral leakage coaxial cable |
| CN101587978A (en) * | 2009-07-09 | 2009-11-25 | 江苏俊知技术有限公司 | Radial leak coaxial cable |
| CN101950838A (en) * | 2010-09-21 | 2011-01-19 | 江苏通鼎光电股份有限公司 | Leaky coaxial cable |
-
2011
- 2011-12-21 CN CN201110431642.3A patent/CN102394331B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004049A (en) * | 1962-09-04 | 1965-09-08 | Siemens Ag | Improvements in or relating to antenna arrangements |
| US3963999A (en) * | 1975-05-29 | 1976-06-15 | The Furukawa Electric Co., Ltd. | Ultra-high-frequency leaky coaxial cable |
| CN101140817A (en) * | 2006-09-06 | 2008-03-12 | 珠海汉胜工业有限公司 | Leaky coaxial cable |
| CN202373683U (en) * | 2011-12-21 | 2012-08-08 | 中天日立射频电缆有限公司 | Leaky coaxial cable with reflecting surface |
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| Publication number | Publication date |
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| CN102394331A (en) | 2012-03-28 |
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Address after: 226000 Nantong economic and Technological Development Zone, the new open road, No. 1, Jiangsu Patentee after: Zhongtian RF cable Co., Ltd. Address before: 226000 Nantong economic and Technological Development Zone, the new open road, No. 1, Jiangsu Patentee before: Zhongtian Rili Rf Cable Co., Ltd. |