CN108390155A - A kind of wide-angle radial leak coaxial cable - Google Patents
A kind of wide-angle radial leak coaxial cable Download PDFInfo
- Publication number
- CN108390155A CN108390155A CN201810317630.XA CN201810317630A CN108390155A CN 108390155 A CN108390155 A CN 108390155A CN 201810317630 A CN201810317630 A CN 201810317630A CN 108390155 A CN108390155 A CN 108390155A
- Authority
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- China
- Prior art keywords
- wide
- coaxial cable
- outer conductor
- slot
- angle radial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 238000004080 punching Methods 0.000 claims abstract description 17
- 230000004992 fission Effects 0.000 claims abstract description 12
- 238000013461 design Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract description 15
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/203—Leaky coaxial lines
-
- 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
Landscapes
- Waveguide Aerials (AREA)
Abstract
The present invention relates to a kind of wide-angle radial leak coaxial cables, are suitable for the wireless communication system of the narrow spaces such as tunnel, mine, subway, tunnel, bullet train and indoor building.A kind of wide-angle radial leak coaxial cable, it is characterised in that：It is made of respectively inner wire, insulating layer, punching outer conductor and four part of oversheath from the inside to surface；Insulating layer is coated with outside inner wire, for punching outer conductor hard-pressed bale outside insulating layer, punching outer conductor is extruded with oversheath；It is uniformly provided with several identical gap array groups at outer conductor upper edge cable axis direction interval.Gap array is made of even more than slot element for two original single slot fission, and the increase of leakage cable radiating element can expand leakage cable diameter to angle of radiation and reduce leakage cable coupling loss.
Description
Technical field
The present invention relates to a kind of wide-angle radial leak coaxial cables（Leakage coaxial cable, behind referred to as leak cable）,
Suitable for narrow spaces such as tunnel, mine, subway, tunnels, the wireless communication system of bullet train and indoor building.
Background technology
Leakage coaxial cable has both radiation and transfer function, utilizes cracking to external radiation simultaneously on coaxial cable outer conductor
It is carried out wireless communication with exterior space.It has many advantages, such as that signal covering is uniform, is easy installation, is widely used in tunnel, mine
In the wireless communication system of the narrow spaces such as well, subway, tunnel, bullet train and indoor building, development prospect is very wide.
When carrying out wireless coverage indoors, since indoor environment is more complicated, needs signal covering uniform and there is no dead angle,
Therefore need the leakage cable diameter of bigger to angle of radiation so that signal covering is more extensively to eliminate signal dead angle.And it is existing sew it is same
Shaft cable, such as the Eight Character trough leakage cable, rectangular channel leakage cable, U-type groove leakage cable, V-groove leakage cable etc., radial spoke firing angle is smaller, about
It is 70 ° ~ 80 °, and only limited to the effect for expanding leakage cable diameter to angle of radiation simply by leakage cable slot length is increased, it can not
Meet room point（Indoor covering system）Wide-angle is covered to eliminate the requirement at signal dead angle.
Invention content
Purpose of the present invention is to places against the above deficiency to provide a kind of wide-angle radial leak coaxial cable, using distribution
Leaking method realize that wide-angle radiates, radial radiation angle reaches 170 ° or more.The leaking method is by the lap gating system fissioned
Row group constitute, by leak cable gap radiation unit increase and gap array entire length increase can expand leakage cable diameter to
Angle of radiation and reduction leakage cable coupling loss, to expand the coverage area and the uniformity of leakage cable signal.The gap of the fission
Array group can apply to the Eight Character trough, rectangular channel and the V-groove of leakage cable.
The present invention is that following technical scheme is taken to realize：
A kind of wide-angle radial leak coaxial cable is from the inside to surface respectively by inner wire, insulating layer, punching outer conductor and oversheath
Four parts form.Insulating layer is coated with outside inner wire, outside insulating layer, punching outer conductor is extruded with punching outer conductor hard-pressed bale
Oversheath.
It is uniformly provided with several identical gap array groups at punching outer conductor upper edge cable axis direction interval；
The gap array of gap array group is made of the original two or more slot elements of single slot fission, lap gating system
The length of row is more than the length of former single slot, and the increase of the increase and gap array entire length of leaking cable gap radiation unit can
With expand leakage cable diameter to angle of radiation and reduce leakage cable coupling loss, to expand leakage cable signal coverage area and uniformly
Degree.
The slot element length of fission is less than the quarter-wave of corresponding maximum useful frequency, this can be to avoid in high frequency
When radiating slot length and respective frequencies wavelength it is comparable, to reduce decaying.
The slot element length of the same gap array can be designed for uniformity according to same frequency, can also be directed to not
Same Frequency point carries out targeted design to the length of different slot elements.
The slot element of same gap array can be slightly displaced from same near axis, and offset distance is 0 ~ 6mm, this can
So that signal is along leakage cable, axially covering is more uniform.The spacing of slot element, which should be 2 ~ 6mm, to be advisable, this can both meet processing
It is required that the covering of interval region signal can be caused weak to avoid radiating element interval is too far again.
The gap array group of the fission can apply to the Eight Character trough, rectangular channel and the V-groove of leakage cable.
A kind of wide-angle radial leak coaxial cable reasonable design of the present invention, compact-sized, the present invention is relative to existing leakage
Cable groove profile uses a kind of distributed leaking method to realize that wide-angle radiates, and radial radiation angle reaches 170 ° or more.Leakage
The increase of cable gap radiation unit and the increase of gap array entire length can expand leakage cable diameter to angle of radiation and drop
Low drain cable coupling loss, to expand the coverage area and the uniformity of leakage cable signal.The special of slot element length of fission sets
Meter avoids the length of radiating slot and the wavelength of respective frequencies in high frequency comparable, to reduce decaying.The same lap gating system
The slot element length of row can change according to different requirements to be designed.And the slot element of same gap array passes through in same axis
Offset near line so that axially covering is more uniform along leakage cable for signal.By the design of the spacing of slot element, this both can be with
Meeting processing request can cause the covering of interval region signal weak to avoid radiating element interval is too far again.Fission in the present invention
Gap array group can be in a variety of leakage cable groove profiles of extensive utilization.
Description of the drawings
Below with reference to attached drawing, the invention will be further described：
Fig. 1 is a kind of wide-angle radial leak coaxial cable structural schematic diagram；
Fig. 2 is a kind of the Eight Character trough structural schematic diagram of common leakage coaxial cable at present；
Fig. 3 is a kind of gap array group schematic diagram of the fission formula of wide-angle radial leak coaxial cable.
In figure：1, inner wire, 2, insulating layer, 3, punching outer conductor, 4, oversheath, 5, single slot, 6, slot element, 7, seam
Gap array, L1, single slot length, L2, gap array length,l, slot element length, d, slot element spacing, d1, partially
Move distance.
Specific implementation mode
With reference to attached drawing 1-3, a kind of wide-angle radial leak coaxial cable from the inside to surface respectively by inner wire 1, insulating layer 2,
Punching outer conductor 3 and 4 four part of oversheath composition.Insulating layer 2 is coated with outside inner wire 1,3 hard-pressed bale of punching outer conductor is insulating
Outside layer 2, punching outer conductor 3 is extruded with oversheath 4.
It is uniformly provided with several identical gap array groups at 3 upper edge cable axis direction interval of punching outer conductor；Lap gating system
Row group is no less than one group.
It is that two or more slot elements 6 are constituted that gap array 7, which is by the original fission of single slot 5, the length of gap array 7
The length L1 that L2 is more than former single slot 5 is spent, the increase of the increase and gap array length of leaking cable radiating element can expand leakage
Cable diameter is to angle of radiation and reduces leakage cable coupling loss, to expand the coverage area and the uniformity of leakage cable signal.
The length of single slot element 6lLess than the quarter-wave of corresponding maximum useful frequency, this can be to avoid in height
The length of radiating slot and the wavelength of respective frequencies are comparable when frequency, to reduce decaying.
The slot element length of the same gap array can be designed for uniformity according to same frequency, can also be directed to not
Same Frequency point carries out different designs to the length of slot element.
The slot element 6 of same gap array can be slightly displaced from same near axis, and offset distance d1 is 0 ~ 6mm,
This can enable signals, and along leakage cable, axially covering is more uniform.
The spacing d of slot element 6, which should be 2 ~ 6mm, to be advisable, this can not only meet processing request but also can be to avoid radiating element
Be spaced it is too far cause interval region signal covering it is weak.
The gap array group of the fission can apply to the Eight Character trough, rectangular channel, the V-groove of leakage cable, substantially improve leakage cable
The performances such as radial radiation angle, transmission loss, coupling loss.
The inner wire 1 is using copper conductor, copper clad aluminum or aluminium conductor.
The insulating layer 2 uses polyethylene foamed or FEP.
The punching outer conductor 3 uses copper strips or aluminium strip.
The oversheath 4 uses polyethylene or fire retardant polyolefin.
Claims (7)
1. a kind of wide-angle radial leak coaxial cable, it is characterised in that：From the inside to surface respectively by inner wire, insulating layer, punching
Outer conductor and four part of oversheath composition；Insulating layer is coated with outside inner wire, punching outer conductor hard-pressed bale is outside insulating layer, punching
Hole outer conductor is extruded with oversheath；
It is uniformly provided with several identical gap array groups at punching outer conductor upper edge cable axis direction interval；The gap array
It is that two or more slot elements are constituted that the gap array of group, which is by original single slot fission,.
2. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The gap array
Length is more than the length of former single slot.
3. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The slot element is long
Degree is less than the quarter-wave of corresponding maximum useful frequency.
4. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The same gap
The slot element length of array can be designed for uniformity according to same frequency, can also be directed to different Frequency points to slot element
Length carries out different designs.
5. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The same lap gating system
The slot element of row can be deviated in same near axis, and offset distance is 0 ~ 6mm.
6. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The adjacent slits list
Spacing between member is 2~6mm.
7. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：The list slot fission
Mode is suitable for the leakage cable groove profile of the Eight Character trough, rectangular channel and V-groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317630.XA CN108390155B (en) | 2018-04-10 | 2018-04-10 | Wide-angle radiation type leaky coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317630.XA CN108390155B (en) | 2018-04-10 | 2018-04-10 | Wide-angle radiation type leaky coaxial cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108390155A true CN108390155A (en) | 2018-08-10 |
| CN108390155B CN108390155B (en) | 2024-05-07 |
Family
ID=63073687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810317630.XA Active CN108390155B (en) | 2018-04-10 | 2018-04-10 | Wide-angle radiation type leaky coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108390155B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707430A (en) * | 2019-08-20 | 2020-01-17 | 江苏亨鑫科技有限公司 | Wide high-frequency leaky cable |
| CN111009733A (en) * | 2018-11-23 | 2020-04-14 | 中天射频电缆有限公司 | Wide-angle radiation type leaky-cable |
| CN113471707A (en) * | 2021-07-26 | 2021-10-01 | 江苏亨鑫科技有限公司 | Ultra-wideband leaky coaxial cable designed by array source |
| CN114094294A (en) * | 2021-11-19 | 2022-02-25 | 中国电信股份有限公司 | Leakage cable |
| WO2022081155A1 (en) * | 2020-10-15 | 2022-04-21 | Hewlett-Packard Development Company, L.P. | Rotatable antennas |
| CN115798811A (en) * | 2022-12-13 | 2023-03-14 | 长飞光纤光缆股份有限公司 | Low-loss horizontal polarization leakage cable compatible with 2G to 5G signals |
| CN116666984A (en) * | 2023-07-31 | 2023-08-29 | 中天射频电缆有限公司 | Leaky cable |
| RU223771U1 (en) * | 2023-11-03 | 2024-03-04 | Акционерное общество "Особое конструкторское бюро кабельной промышленности" | RADIATING CABLE |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3890114A4 (en) * | 2018-11-23 | 2022-06-22 | Zhongtian Radio Frequency Cable Co., Ltd | Wide-angle radiation leaky coaxial cable |
| WO2020103150A1 (en) * | 2018-11-23 | 2020-05-28 | 中天射频电缆有限公司 | Wide-angle radiation leaky coaxial cable |
| CN111009733B (en) * | 2018-11-23 | 2022-09-30 | 中天射频电缆有限公司 | Wide-angle radiation type leaky-cable |
| CN111009733A (en) * | 2018-11-23 | 2020-04-14 | 中天射频电缆有限公司 | Wide-angle radiation type leaky-cable |
| RU2753842C2 (en) * | 2018-11-23 | 2021-08-24 | Чжунтянь Рэдио Фриквенси Кейбл Ко., Лтд | Wide angle radiating cable |
| CN110707430A (en) * | 2019-08-20 | 2020-01-17 | 江苏亨鑫科技有限公司 | Wide high-frequency leaky cable |
| WO2021031641A1 (en) * | 2019-08-20 | 2021-02-25 | 江苏亨鑫科技有限公司 | Wide/high-frequency leaky cable |
| WO2022081155A1 (en) * | 2020-10-15 | 2022-04-21 | Hewlett-Packard Development Company, L.P. | Rotatable antennas |
| CN113471707A (en) * | 2021-07-26 | 2021-10-01 | 江苏亨鑫科技有限公司 | Ultra-wideband leaky coaxial cable designed by array source |
| CN113471707B (en) * | 2021-07-26 | 2023-07-21 | 江苏亨鑫科技有限公司 | Ultra-wideband leakage coaxial cable designed by array source |
| CN114094294A (en) * | 2021-11-19 | 2022-02-25 | 中国电信股份有限公司 | Leakage cable |
| CN114094294B (en) * | 2021-11-19 | 2023-12-08 | 中国电信股份有限公司 | Leaky cable |
| CN115798811A (en) * | 2022-12-13 | 2023-03-14 | 长飞光纤光缆股份有限公司 | Low-loss horizontal polarization leakage cable compatible with 2G to 5G signals |
| CN115798811B (en) * | 2022-12-13 | 2023-10-27 | 长飞光纤光缆股份有限公司 | Low-loss horizontal polarization leaky cable compatible with 2G to 5G signals |
| CN116666984A (en) * | 2023-07-31 | 2023-08-29 | 中天射频电缆有限公司 | Leaky cable |
| CN116666984B (en) * | 2023-07-31 | 2023-10-31 | 中天射频电缆有限公司 | leaky cable |
| RU223771U1 (en) * | 2023-11-03 | 2024-03-04 | Акционерное общество "Особое конструкторское бюро кабельной промышленности" | RADIATING CABLE |
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