CN208028215U - A kind of wide-angle radial leak coaxial cable - Google Patents
A kind of wide-angle radial leak coaxial cable Download PDFInfo
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- CN208028215U CN208028215U CN201820503050.5U CN201820503050U CN208028215U CN 208028215 U CN208028215 U CN 208028215U CN 201820503050 U CN201820503050 U CN 201820503050U CN 208028215 U CN208028215 U CN 208028215U
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Abstract
The utility model 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 utility model relates to a kind of wide-angle radial leak coaxial cables（Leakage coaxial cable, behind referred to as leak
Cable）, it is suitable for the wireless communication system of the narrow spaces such as tunnel, mine, subway, tunnel, 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.
Utility model content
The utility model aim is that place provides a kind of wide-angle radial leak coaxial cable against the above deficiency, using point
The leaking method of cloth realizes that wide-angle radiates, and radial radiation angle reaches 170 ° or more.The leaking method is by the seam fissioned
Gap array group is constituted, and can expand leakage cable by leaking the increase of cable gap radiation unit and the increase of gap array entire length
Radial radiation angle and reduction leakage cable coupling loss, to expand the coverage area and the uniformity of leakage cable signal.The fission
Gap array group can apply to the Eight Character trough, rectangular channel and the V-groove of leakage cable.
The utility model 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 outer
Four part of sheath forms.Insulating layer is coated with outside inner wire, outside insulating layer, punching outer conductor squeezes punching outer conductor hard-pressed bale
It is surrounded by 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, is stitched
The length of gap array is more than the length of former single slot, leaks the increase of cable gap radiation unit and the increasing of gap array entire length
Add can expand leakage cable diameter to angle of radiation and reduce leakage cable coupling loss, to expand leakage cable signal coverage area and
Evenness.
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 utility model, compact-sized, the utility model is opposite
In existing leakage cable groove profile, a kind of distributed leaking method is used to realize that wide-angle radiates, radial radiation angle reaches
170 ° or more.The increase of the increase and gap array entire length of leaking cable gap radiation unit can expand leakage cable radial radiation
Angle and reduction leakage cable coupling loss, to expand the coverage area and the uniformity of leakage cable signal.The slot element of fission is long
The special designing of degree avoids the length of radiating slot and the wavelength of respective frequencies in high frequency comparable, to reduce decaying.Together
The slot element length of one gap array can change according to different requirements to be designed.And the slot element of same gap array is logical
Cross the offset in same near axis so that axially covering is more uniform along leakage cable for signal.Pass through setting for the spacing of slot element
Meter, this can not only meet processing request but also the covering of interval region signal can have been caused weak to avoid radiating element interval is too far.This reality
It can be in a variety of leakage cable groove profiles of extensive utilization with the gap array group of the fission in novel.
Description of the drawings
Below with reference to attached drawing, the utility model is described in further detail：
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 array
Slot element length can be designed for uniformity according to same frequency, can also be directed to different Frequency points to the length of slot element
Carry out different designs.
5. a kind of wide-angle radial leak coaxial cable according to claim 1, it is characterised in that：Same gap array
Slot element 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：Between adjacent slits unit
Spacing be 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 |
|---|---|---|---|
| CN201820503050.5U CN208028215U (en) | 2018-04-10 | 2018-04-10 | A kind of wide-angle radial leak coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503050.5U CN208028215U (en) | 2018-04-10 | 2018-04-10 | A kind of wide-angle radial leak coaxial cable |
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| Publication Number | Publication Date |
|---|---|
| CN208028215U true CN208028215U (en) | 2018-10-30 |
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| CN201820503050.5U Active CN208028215U (en) | 2018-04-10 | 2018-04-10 | A kind of wide-angle radial leak coaxial cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390155A (en) * | 2018-04-10 | 2018-08-10 | 中天射频电缆有限公司 | A kind of wide-angle radial leak 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 |
| CN112736476A (en) * | 2020-11-19 | 2021-04-30 | 东华大学 | High-gain leaky-wave cable for indoor distribution |
| CN114094294A (en) * | 2021-11-19 | 2022-02-25 | 中国电信股份有限公司 | Leakage cable |
-
2018
- 2018-04-10 CN CN201820503050.5U patent/CN208028215U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390155A (en) * | 2018-04-10 | 2018-08-10 | 中天射频电缆有限公司 | A kind of wide-angle radial leak coaxial cable |
| CN108390155B (en) * | 2018-04-10 | 2024-05-07 | 中天射频电缆有限公司 | Wide-angle radiation type 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 |
| RU2753842C2 (en) * | 2018-11-23 | 2021-08-24 | Чжунтянь Рэдио Фриквенси Кейбл Ко., Лтд | Wide angle radiating cable |
| CN112736476A (en) * | 2020-11-19 | 2021-04-30 | 东华大学 | High-gain leaky-wave cable for indoor distribution |
| 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 |
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