CN209133693U - Antenna, mimo antenna and the isolating bar for reducing mutual coupling of antenna energy - Google Patents
Antenna, mimo antenna and the isolating bar for reducing mutual coupling of antenna energy Download PDFInfo
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- CN209133693U CN209133693U CN201690000368.0U CN201690000368U CN209133693U CN 209133693 U CN209133693 U CN 209133693U CN 201690000368 U CN201690000368 U CN 201690000368U CN 209133693 U CN209133693 U CN 209133693U
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- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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Abstract
A kind of isolating bar (1) for reducing mutual coupling of antenna energy, be machined with periodic arrangement along the short transverse of the isolating bar (1) and shape and size are able to suppress the decoupling slot element (2) of the mutual coupling energy in array antenna (4) between adjacent two array antennas unit (41,42,43,44).The utility model also provides a kind of antenna and mimo antenna.Pass through above embodiment, the mutual coupling between antenna operating band internal antenna unit (41,42,43,44) can be reduced, the isolation between antenna element (41,42,43,44) is improved, the processing is simple, cost is relatively low, significant effect.
Description
Technical field
The utility model relates to technology mobile communication base station technical field more particularly to a kind of antennas, mimo antenna and use
In the isolating bar for reducing mutual coupling of antenna energy.
Background technique
The major design task of antenna for base station has wave beam forming, multiple-frequency operation, reduces size and design sophistication
Antenna system.
Original each unified vertical antenna a period of time is divided into multiple and different battle arrays by current developing 3D MIMO technology
Son further decreases inter-cell interference using the freedom degree of vertical direction, enhances antenna performance.In 3D MIMO base station antenna
In, wave beam forming reduces size as most important design objective.Wherein, wave beam forming designs the geometry by array antenna
The influence of layout, cell spacing, the excitation amplitude and phase of the directional diagram of each radiating element, radiating element.Compact-sized day
The spacing in linear array a period of time is smaller, and the mutual coupling between a period of time wave beam is more serious, will seriously affect the wave beam forming effect of array antenna,
Enhance the interference between channel.Therefore, the mutual symplectic 3D MIMO technology for reducing array antenna unit under small spacing is most important.
The mutual coupling for usually reducing array antenna unit can be using the form of antenna element triangle layout, i.e. each column or row
Array element is up and down or front and back is staggered layout, to increase the spacing of antenna element.And base station antenna unit mostly use ± 45 ° it is orthogonal
Polarization, the beam angle of unit is in ± 45 ° of direction maximums, therefore the isolation using the form of triangle layout to antenna element is improved
Spend no positive effect.Isolating bar between antenna element, which is increased, can also weaken mutual coupling intensity, but excessive height will affect
The beam shape of antenna deteriorates antenna cross-polarization level.
Utility model content
The utility model provides a kind of antenna, mimo antenna and to solve above-mentioned technical problem for reducing mutual coupling of antenna energy
The isolating bar of amount can reduce the mutual coupling between antenna operating band internal antenna unit, improve the isolation between antenna element,
The processing is simple for it, cost is relatively low, significant effect.
In order to solve the above technical problems, the utility model provides a kind of isolating bar for reducing mutual coupling of antenna energy, edge
The short transverse of the isolating bar is machined with periodic arrangement and shape and size are able to suppress adjacent two column in array antenna
The decoupling slot element of mutual coupling energy between antenna element.
Further, the decoupling slot element is bilateral symmetry.
Further, the shape of the decoupling slot element is " work " shape.
Further, the shape of the decoupling slot element is " Ω " shape.
Further, the shape of the decoupling slot element is Y-shaped.
Further, the shape of the decoupling slot element is opening hexagon.
Further, the decoupling slot element height is the λ of 0.2 λ~0.48, width is the λ of 0.01 λ~0.05, length
It is the corresponding operation wavelength of centre frequency of the array radiation unit in the antenna element for the λ of 0.05 λ~0.12, λ.
Further, the period spacing of the decoupling slot element is the λ of 0.4 λ~0.9, and λ is the battle array in the antenna element
The corresponding operation wavelength of the centre frequency of column radiating element.
Further, the isolating bar is made using aluminium alloy, steel or pcb board.
In order to solve the above technical problems, the utility model also provides a kind of antenna, including at least one is such as any of the above-described
Isolating bar described in embodiment, further includes the reflecting plate for being equipped with array antenna, and the isolating bar is accordingly installed on the battle array
In array antenna between adjacent two array antennas unit.
Further, the column pitch between the adjacent two column antenna element is less than or equal to 0.5 λ, and λ is the antenna list
The corresponding operation wavelength of centre frequency of array radiation unit in member.
Further, antenna element described in each column is made of multiple array radiation units respectively, each array radiation list
Member is ± 45 ° of dual-polarized array radiating elements.
Further, each isolating bar is respectively arranged at the center line between the corresponding adjacent two column antenna element
On.
Further, belong in two adjacent a period of time radiating elements in the adjacent two column antenna element
The center of the heart and the decoupling slot element corresponding in the isolating bar being installed between the adjacent two column antenna element
On same line.
Further, the arrangement side that a period of time radiating element in the adjacent two column antenna element is arranged using alignment
Formula.
In order to solve the above technical problems, the utility model also provides a kind of mimo antenna, including at least one is such as above-mentioned
Isolating bar described in one embodiment, further includes the reflecting plate for being equipped with array antenna, and the isolating bar is accordingly installed on institute
It states in array antenna between adjacent two array antennas unit.
The antenna, mimo antenna and the isolating bar for reducing mutual coupling of antenna energy of the utility model, the utility model
Antenna and isolating bar for reducing mutual coupling of antenna energy are being installed on when column pitch is smaller between adjacent two array antennas unit
The decoupling slot element of the periodic arrangement of specific shape is opened up on isolating bar between two array antenna units, and adjusts decoupling gap
The structure size of unit, can in antenna operating band reduction unit mutual coupling, improve the isolation of unit up to 10dB or more,
And other performance indicators of antenna are influenced smaller.The processing is simple for it, cost is relatively low, significant effect.
Detailed description of the invention
Fig. 1 is the assembly structure diagram of the utility model antenna.
Fig. 2 is the side view of antenna shown in Fig. 1.
Fig. 3 is the structural schematic diagram of isolating bar in antenna shown in Fig. 1.
Fig. 4 (a)~4 (d) is the geometrical model figure that slot element is decoupled in antenna shown in Fig. 1.
Fig. 5 is the isolation curve graph between the array antenna unit of antenna shown in Fig. 1.
Fig. 6 is the directional diagram between the array antenna unit of antenna shown in Fig. 1.
This paper attached drawing is and to constitute part of specification for being further described and understand to the utility model,
Be used to explain the utility model together with specific embodiment of the utility model, but constitute limitations of the present invention or
It limits.
Specific embodiment
The utility model is described in detail with embodiment with reference to the accompanying drawing.
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of antenna, which includes: by more than two column disposed in parallel
The array antenna 4 that antenna element is constituted, and the reflecting plate 3 of the array antenna 4 is installed.As shown in Figure 1, day in array antenna 4
Line unit can illustrate is set as totally 4 column, respectively antenna element 41~44, also, each column antenna element 41~44 respectively by
Multiple a period of time radiating elements 400 are constituted.
Wherein, each a period of time radiating element 400 usually can choose such as ± 45 ° of dual polarization a period of time radiating elements.
Specifically, between each adjacent two array antennas unit, between antenna element 41,42 specially as shown in Figure 1, antenna
Isolating bar 1 is separately installed between unit 42,43 and between antenna element 43,44.Wherein, isolating bar 1 usually can be used as
Aluminium alloy, steel or pcb board are made.
Further, it is machined with multiple decoupling slot elements 2 in engraved structure on isolating bar 1, decouples 2 edge of slot element
The shape and size of the short transverse periodic arrangement of isolating bar 1, decoupling slot element 2 should be able to suppress the array antenna 4
In mutual coupling energy between adjacent two array antennas unit.For convenience of understanding, the short transverse of isolating bar 1 is often referred to its length side
To.
As shown in Fig. 4 (a)~4 (d), specifically, decoupling slot element 2 is set as decoupling effect when bilateral symmetry
Preferably.
Preferably, which can be " work " shape (shown in such as Fig. 4 (a)), be essentially both ends equal length
" work " shape.In one embodiment, specific such as Fig. 3, the height H for being somebody's turn to do the decoupling slot element 2 of " work " shape structure can be 0.381
λ (the corresponding operation wavelength of centre frequency that λ is array radiation unit)；Its width W can be 0.017 λ；Its length L can be
0.087λ；And decoupling slot element 2 can be 0.710 λ along the period space D of the short transverse periodic arrangement of isolating bar 1.
Certainly, the shape of the decoupling slot element 2 is not limited only to " work " shape above-mentioned, is also possible to " Ω " shape (such as Fig. 4
(b) shown in), Y-shaped (such as Fig. 4 (c) shown in) or opening hexagon (shown in such as Fig. 4 (d)).Wherein, which needs to meet
The condition of bilateral symmetry, also, the height for decoupling slot element 2 should be between the λ of 0.2 λ~0.48；Further,
The width for decoupling slot element 2 should be between the λ of 0.01 λ~0.05；Further, the length for decoupling slot element 2 is answered
When between the λ of 0.05 λ~0.12.
In above embodiment, the period spacing of decoupling slot element 2 can be set to the λ of 0.4 λ~0.9.
In a better embodiment, the isolating bar 1 between adjacent two array antennas unit is set to adjacent two array antenna
On center line between unit.
The above-mentioned isolating bar 1 for being machined with decoupling slot element 2, suitable for antenna between each adjacent two array antennas unit
It is used when column pitch is smaller, use when being particularly suitable for its column pitch no more than 0.5 λ.
In above embodiment, the setting of isolating bar 1 is applicable not only to a period of time radiating element in adjacent two array antennas unit
400 arrangement modes being arranged using alignment are also applied for a period of time radiating element 400 in adjacent two array antennas unit and are set using intersection
The arrangement mode set.Preferably, belonging to the center of two adjacent a period of time radiating elements 400 in adjacent two array antennas unit
Same is in the corresponding center for decoupling slot element 2 in the isolating bar 1 being installed between the adjacent two array antennas unit
On line, which is particularly suitable for the arrangement side that a period of time radiating element 400 is arranged using alignment in adjacent two array antennas unit
Formula.
In addition, the quantity of decoupling slot element 2 not necessarily must be with the quantity of a period of time radiating element 400 in an array antenna unit
It is consistent, can be slightly more or less slightly, it can equally obtain preferable decoupling effect.
Referring to Fig. 5, the isolation curve for aforementioned 1 adjacent antenna units of isolating bar for being equipped with decoupling gap is gone with nothing
The isolation curve test contrast schematic diagram of 1 adjacent antenna units of isolating bar in coupling gap.There is the isolating bar 1 in decoupling gap whole
The isolation of antenna element is improved, isolation improves 11.1dB at center operating frequency.
Referring to Fig. 6, the isolating bar 1 for aforementioned installation has without the antenna element directional diagram in decoupling gap with isolating bar 1
The antenna element directional diagram contrast schematic diagram in coupling gap.Without decoupling gap, antenna element half-power beam width is isolating bar 1
70°；Isolating bar 1 has decoupling gap, and antenna element beam angle is 65 °, slightly narrows.
The utility model also provides a kind of isolating bar for reducing mutual coupling of antenna energy, and the description of the isolating bar is asked
Refering to above, no longer repeat one by one herein.
In above embodiment, antenna can be mimo antenna, the description for corresponding component, please refer to above, herein
No longer repeat one by one.
The antenna of the utility model and isolating bar for reducing mutual coupling of antenna energy arrange between adjacent two array antennas unit
When spacing is smaller, the decoupling seam of the periodic arrangement of specific shape is opened up on the isolating bar 1 being installed between two array antenna units
Gap unit 2, and adjust decoupling slot element 2 shape and/or size, can in antenna operating band reduction unit it is mutual
Coupling improves the isolation of unit up to 10dB or more, and influences on other performance indicators of antenna smaller.The processing is simple for it, cost
Lower, significant effect.
The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all benefits
The equivalent structure or equivalent flow shift made by the utility model specification and accompanying drawing content, is applied directly or indirectly in it
His relevant technical field, is also included in the patent protection scope of the utility model.
Claims (16)
1. a kind of isolating bar for reducing mutual coupling of antenna energy, it is characterised in that:
Be machined with periodic arrangement along the short transverse of the isolating bar and shape and size are able to suppress phase in array antenna
The decoupling slot element of mutual coupling energy between adjacent two array antenna units.
2. isolating bar according to claim 1, it is characterised in that:
The decoupling slot element is bilateral symmetry.
3. isolating bar according to claim 2, it is characterised in that:
The shape of the decoupling slot element is " work " shape.
4. isolating bar according to claim 2, it is characterised in that:
The shape of the decoupling slot element is " Ω " shape.
5. isolating bar according to claim 2, it is characterised in that:
The shape of the decoupling slot element is Y-shaped.
6. isolating bar according to claim 2, it is characterised in that:
The shape of the decoupling slot element is opening hexagon.
7. isolating bar according to claim 1-6, it is characterised in that:
The decoupling slot element height is the λ of 0.2 λ~0.48, width is the λ of 0.01 λ~0.05, length is 0.05 λ~0.12
λ, λ are the corresponding operation wavelength of centre frequency of the array radiation unit in the antenna element.
8. isolating bar according to claim 1-6, it is characterised in that:
The period spacing of the decoupling slot element is the λ of 0.4 λ~0.9, and λ is the array radiation unit in the antenna element
The corresponding operation wavelength of centre frequency.
9. isolating bar according to claim 1-6, it is characterised in that:
The isolating bar is made using aluminium alloy, steel or pcb board.
10. a kind of antenna, which is characterized in that including at least one such as the described in any item isolating bars of claim 1-9, further include
The reflecting plate of array antenna is installed, the isolating bar be accordingly installed in the array antenna adjacent two array antennas unit it
Between.
11. antenna according to claim 10, it is characterised in that:
Column pitch between the adjacent two column antenna element is less than or equal to 0.5 λ, and λ is the array spoke in the antenna element
Penetrate the corresponding operation wavelength of centre frequency of unit.
12. antenna according to claim 10, it is characterised in that:
Antenna element described in each column is made of multiple array radiation units respectively, and each array radiation unit is ± 45 ° bipolar
Change array radiation unit.
13. antenna according to claim 10, it is characterised in that:
Each isolating bar is respectively arranged on the center line between the corresponding adjacent two column antenna element.
14. antenna according to claim 10, it is characterised in that:
The center of the two adjacent a period of time radiating elements belonged in the adjacent two column antenna element be installed on phase
The center of the corresponding decoupling slot element is in same company in the isolating bar between the two column antenna element of neighbour
On line.
15. antenna according to claim 14, it is characterised in that:
The arrangement mode that a period of time radiating element in the adjacent two column antenna element is arranged using alignment.
16. a kind of mimo antenna, which is characterized in that including at least one such as the described in any item isolating bars of claim 1-9, also
Reflecting plate including being equipped with array antenna, the isolating bar are accordingly installed on adjacent two array antennas unit in the array antenna
Between.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/099549 WO2018053698A1 (en) | 2016-09-21 | 2016-09-21 | Antenna, mimo antenna, and isolation member used to reduce antenna mutual coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209133693U true CN209133693U (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000368.0U Active CN209133693U (en) | 2016-09-21 | 2016-09-21 | Antenna, mimo antenna and the isolating bar for reducing mutual coupling of antenna energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209133693U (en) |
| WO (1) | WO2018053698A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777350B (en) * | 2018-05-03 | 2023-10-27 | 漆一宏 | Antenna unit and antenna array with same |
| CN110828976B (en) * | 2018-08-14 | 2021-10-22 | 华为技术有限公司 | Antenna system and base station |
| CN109149108A (en) * | 2018-09-05 | 2019-01-04 | 武汉虹信通信技术有限责任公司 | A kind of isolator and mimo antenna |
| CN112563748B (en) * | 2020-12-01 | 2023-05-23 | 西安朗普达通信科技有限公司 | Asymmetric decoupling structure and base station antenna system |
| CN113471699B (en) * | 2021-07-05 | 2023-03-28 | 湖南大学 | Decoupling method and device based on coupling mode conversion |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3449936B2 (en) * | 1999-01-12 | 2003-09-22 | 三菱マテリアル株式会社 | Manufacturing method of waveguide slot antenna |
| CN204732519U (en) * | 2015-07-18 | 2015-10-28 | 浙江佳源通讯技术有限公司 | Three high-frequency bipolar spotlight antennas |
| CN105006650B (en) * | 2015-07-30 | 2018-03-09 | 中天宽带技术有限公司 | A kind of Bipolarization antenna for base station based on photonic crystal |
| CN205069859U (en) * | 2015-09-09 | 2016-03-02 | 西安三维通信有限责任公司 | Dull and stereotyped array antenna of waveguide of machinery central feed |
| CN106207457B (en) * | 2016-09-21 | 2019-03-29 | 广东通宇通讯股份有限公司 | Antenna, mimo antenna and the isolating bar for reducing mutual coupling of antenna energy |
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2016
- 2016-09-21 CN CN201690000368.0U patent/CN209133693U/en active Active
- 2016-09-21 WO PCT/CN2016/099549 patent/WO2018053698A1/en active Application Filing
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| WO2018053698A1 (en) | 2018-03-29 |
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