CN103378414A - Multi-aerial system - Google Patents
Multi-aerial system Download PDFInfo
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- CN103378414A CN103378414A CN201210124671XA CN201210124671A CN103378414A CN 103378414 A CN103378414 A CN 103378414A CN 201210124671X A CN201210124671X A CN 201210124671XA CN 201210124671 A CN201210124671 A CN 201210124671A CN 103378414 A CN103378414 A CN 103378414A
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- antenna
- metal layer
- multiaerial system
- slotted eye
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Abstract
A multi-aerial system is printed on a substrate, and comprises a grounding metal layer, a first antenna, a second antenna, a metal ground wall and a groove hole, wherein the first antenna, the second antenna and the metal ground wall are connected with the grounding metal layer, and the groove hole is formed in the grounding metal layer. The metal ground wall is arranged between the first antenna and the second antenna. The grounding metal layer is electrically connected to the first antenna, the second antenna and the metal ground wall, and the groove hole formed in the grounding metal layer is located between the first antenna and the metal ground wall. The groove hole and the metal ground wall are arranged between the two antennas, so that electromagnetic interference between the two antennas is effectively prevented.
Description
Technical field
The present invention relates to a kind of antenna, relate in particular to a kind of multiaerial system.
Background technology
At present, on wireless communications products, such as router (router device), great majority adopt multiaerial system, namely at the antenna of identical frequency band employing more than 2.But because the distance between antenna is too approaching, antenna can produce interference to each other, causes the signal quality of antenna reception to descend.So, how can effectively prevent the interference that produces between antenna, making it have good receiving quality is current industry one large research topic.
Summary of the invention
In view of this, a kind of multiaerial system need to be provided, the interference between antenna can be effectively prevented.
The multiaerial system that provides in an embodiment of the present invention is printed on the substrate, comprises ground metal layer, the first antenna that links to each other with ground metal layer, the second antenna, metal ground wall and is arranged at slotted eye on the ground metal layer.Wherein, metal ground wall is arranged between described the first antenna and described the second antenna.Ground metal layer is electrically connected at described the first antenna, described the second antenna and described metal ground wall, and ground metal layer is provided with slotted eye, and slotted eye is between described the first antenna and described metal ground wall.The present invention is by effectively preventing electromagnetic interference between two antennas in that slotted eye and metal ground wall are set between two antennas.Preferably, described the first antenna, described the second antenna and described metal ground wall are electrically connected at the same edge of described ground metal layer.
Preferably, described metal ground wall is strip, and vertically is connected in the described same edge of described ground metal layer.
Preferably, described slotted eye is between described the first antenna and described the second antenna resonant wavelength.
Preferably, described slotted eye and described the first antenna and described the second antenna are in identical frequency band.
Preferably, described slotted eye begins to extend to described the first antenna from the described same edge of described ground metal layer.
Preferably, described slotted eye is L shaped, described slotted eye comprises starting vessel and the extension slot that is communicated with described starting vessel, described starting vessel is perpendicular to the described same edge of described ground metal layer, described extension slot begins to extend described bearing of trend and described starting vessel perpendicular direction to described the first antenna from described starting vessel.
Preferably, described the first antenna and described the second antenna are unipole antenna, and described the first antenna and described the second antenna are parallel arranged along the described same edge of described ground metal layer, and both shapes are identical.
Preferably, described the first antenna and described the second antenna comprise respectively feeding portion, grounding parts, the first Department of Radiation and the second Department of Radiation, feeding portion is used for the feed-in electromagnetic wave signal, the first Department of Radiation, link to each other with described ground metal layer by described feeding portion, the second Department of Radiation links to each other with described ground metal layer by described grounding parts.
Preferably, the first Department of Radiation of described the first antenna is inverted L shape, and an end is open end, and the other end links to each other with described ground metal layer by the feeding portion of described the first antenna, and described open end is wider than an end that links to each other with the feeding portion of described the first antenna.
Preferably, the second Department of Radiation of described the first antenna is inverted L shape, the one end links to each other with described the first Department of Radiation, the other end links to each other with described ground metal layer by the grounding parts of described the first antenna, and an end that links to each other with described the first Department of Radiation is than narrow with the other end that described ground metal layer links to each other with the grounding parts by described the first antenna.
Preferably, described slotted eye is near the feeding portion of described the first antenna.
Preferably, described multi-input/output antenna also comprises a plurality of unipole antennas.
Preferably, at least one antenna is arranged at a side vertical with the described same edge of described ground metal layer, and at least one antenna is arranged at another side relative with a described side of described ground metal layer.
Multiaerial system utilization of the present invention is provided with slotted eye and metal ground wall between two antennas, can effectively prevent the interference between antenna.
Description of drawings
Fig. 1 is the schematic diagram of multiaerial system one execution mode of the present invention.
Fig. 2 is the return loss resolution chart of multiaerial system among Fig. 1.
Fig. 3 is the return loss resolution chart when multiaerial system is without slotted eye and metal ground wall among Fig. 1.
The schematic diagram of Fig. 4 another execution mode of multiaerial system of the present invention.
Fig. 5 is the return loss resolution chart of multiaerial system among Fig. 4.
Fig. 6 is the return loss resolution chart when multiaerial system is without slotted eye and metal ground wall among Fig. 4.
Fig. 7 is the size schematic diagram of multiaerial system one execution mode among Fig. 1.
The main element symbol description
The first antenna 10
The second antenna 20
The 4th antenna 60
The 5th antenna 70
Slotted eye 30
Starting vessel 32
The first Department of Radiation 12 of the first antenna
The second Department of Radiation 14 of the first antenna
The feeding portion 12a of the first antenna
The grounding parts 14a of the first antenna
Embodiment
Please refer to Fig. 1, be depicted as the schematic diagram of multiaerial system one execution mode of the present invention.In the present embodiment, multiaerial system is printed on the substrate 100, and it comprises ground metal layer 200, the first antenna 10, the second antenna 20 and metal ground wall 40.Wherein, the first antenna 10, the second antenna 20 and metal ground wall 40 are electrically connected at the same edge of ground metal layer 200.Ground metal layer 200 is provided with slotted eye 30.In the present embodiment, substrate 100 can be printed circuit board (PCB), and its part scribbles metal level (dash area as shown in Figure 1), can be used as ground metal layer 200, the first antenna 10 and the second antenna 20.In the present embodiment, the shape of ground metal layer 200 is not limit, and comprises at least the same edge that is connected with the first antenna 10, the second antenna 20 and metal ground wall 40.
The first antenna 10 and the second antenna 20 are unipole antenna, and the first antenna 10 and the second antenna 20 are parallel arranged along the same edge of ground metal layer 200, and both shapes are identical, so, only as an example of the first antenna 10 example concrete shape is described.In the present embodiment, the first antenna 10 comprises the first Department of Radiation 12, the second Department of Radiation 14, grounding parts 14a and feeding portion 12a.Wherein, 12 one-tenth inverted L shapes of the first Department of Radiation, an end are open end, and the other end links to each other with ground metal layer 200 by the feeding portion 12a of the first antenna 10, and open end is wider than an end that links to each other with the feeding portion 12a of the first antenna 10.14 one-tenth inverted L shapes of the second Department of Radiation, the one end links to each other with the first Department of Radiation 12 of the first antenna 10, the other end links to each other with ground metal layer 200 by the grounding parts 14a of the first antenna 10, and an end that links to each other with the first Department of Radiation 12 of the first antenna 10 ratio is with narrow with the other end that ground metal layer 200 links to each other by the grounding parts 14a of the first antenna 10.The first antenna 10 is the same with the structure of the second antenna 20, in the detailed description of this omission to the second antenna 20 structures.
Fig. 2 is the return loss resolution chart of multiaerial system among Fig. 1.Curve S 10 among Fig. 2 is the return loss of the first antenna 10, and S20 is the return loss of the second antenna 20, and S30 is the return loss of the first antenna 10 and 20 interference of the second antenna.On curve S 30, return loss is-20.8dB when frequency band is 5GHz.
Fig. 3 is the return loss resolution chart when multiaerial system is without slotted eye 30 and metal ground wall 40 among Fig. 2.Curve S 31 is the return loss of the first antenna 10 and 20 interference of the second antenna among Fig. 3.On curve S 31, return loss is-9.8dB when frequency band is 5GHz.
Under identical frequency band, increase return loss that slotted eye 30 and metal ground wall 40 multiaerial systems disturb among Fig. 2 less than the return loss that does not increase the interference of slotted eye 30 and metal ground wall 40 multiaerial systems among Fig. 3, the slotted eye 30 that increase is described combines with metal ground wall 40 and can effectively prevent two closely interference between antenna.
Fig. 4 is the schematic diagram of another execution mode of multiaerial system of the present invention.In the present embodiment, except with same edge that the first antenna 10, the second antenna 20 and metal ground wall 40 are connected, ground metal layer 200 also can comprise two sides vertical with described same edge.In the present embodiment, multiaerial system also comprises other unipole antennas, such as third antenna 50, the 4th antenna 60, the 5th antenna 70, all be printed on the substrate 100, these unipole antennas can all be arranged at the same edge of substrate 100, also can have at least an antenna body to be arranged at the same edge of ground metal layer 200 as shown in Figure 4, have at least an antenna body to be arranged at the dual-side of ground metal layer 200.In order to increase anti-tampering ability, can between per two unipole antennas, all establish slotted eye 30 and/or metal ground wall 40.Slotted eye 30 and metal ground wall 40 be applied in a plurality of unipole antennas still can reach the beneficial effect that prevents inter-antenna interference.
Fig. 5 is the return loss resolution chart of multiaerial system among Fig. 4.In the present embodiment, the curve S among Fig. 5 32 is the return loss of the first antenna 10 and 20 interference of the second antenna.Wherein, return loss is-31.3dB when frequency band 5GHz.Fig. 6 is the return loss resolution chart of MIMO antenna during without slotted eye 30 and metal ground wall 40 in an embodiment of the present invention.In one embodiment of the present invention, the curve S among Fig. 6 33 is the return loss of the first antenna 10 and 20 interference of the second antenna.Wherein, return loss is-13dB when frequency band 5GHz.
Under identical frequency band, increase return loss that slotted eye 30 and metal ground wall 40 MIMO antennas disturb among Fig. 5 less than the return loss that does not increase the interference of slotted eye 30 and metal ground wall 40 multiaerial systems among Fig. 6, illustrate that increase slotted eye 30 and metal ground wall 40 can effectively prevent two closely interference between unipole antenna when a plurality of antenna is arranged.
Fig. 7 is the size schematic diagram of multiaerial system one execution mode among Fig. 1.In the present embodiment, the length of metal ground wall 40 and width are respectively 10 millimeters, 2 millimeters, and with the distance of the second antenna 20 be 11.5 millimeters, the length of the starting vessel 32 of slotted eye 30 and width are respectively 2.5 millimeters and 1.5 millimeters, and the length of the extension slot 34 of slotted eye 30 and width are respectively 8 millimeters, 1.5 millimeters.The starting vessel 32 of slotted eye 30 and the distance of the first antenna 10 are 10 millimeters, with the distance of metal ground wall 40 be 6 millimeters.
The present invention prevents effectively that electric current and field coupled to another antenna from causing interference, provides good receiving quality by increase slotted eye 30 and metal ground wall 40 on 20 on the first antenna 10 and the second antenna can be at the feed-in electric current time.
Claims (14)
1. a multiaerial system is printed on the substrate, it is characterized in that, described multiaerial system comprises:
The first antenna and the second antenna;
Metal ground wall is arranged between described the first antenna and described the second antenna;
Ground metal layer is electrically connected at described the first antenna, described the second antenna and described metal ground wall, and described ground metal layer is provided with slotted eye, and described slotted eye is between described the first antenna and described metal ground wall.
2. multiaerial system as claimed in claim 1 is characterized in that, described the first antenna, described the second antenna and described metal ground wall are electrically connected at the same edge of described ground metal layer.
3. multiaerial system as claimed in claim 2 is characterized in that, described metal ground wall is strip, and vertically is connected in the described same edge of described ground metal layer.
4. multiaerial system as claimed in claim 1 is characterized in that, described slotted eye is between described the first antenna and described the second antenna resonant wavelength.
5. multiaerial system as claimed in claim 4 is characterized in that, described slotted eye and described the first antenna and described the second antenna are in identical frequency band.
6. multiaerial system as claimed in claim 2 is characterized in that, described slotted eye begins to extend to described the first antenna from the described same edge of described ground metal layer.
7. multiaerial system as claimed in claim 6, it is characterized in that, described slotted eye is L shaped, described slotted eye comprises starting vessel and the extension slot that is communicated with described starting vessel, described starting vessel is perpendicular to the described same edge of described ground metal layer, described extension slot begins to extend described bearing of trend and described starting vessel perpendicular direction to described the first antenna from described starting vessel.
8. multiaerial system as claimed in claim 1, it is characterized in that, described the first antenna and described the second antenna are unipole antenna, and described the first antenna and described the second antenna are parallel arranged along the described same edge of described ground metal layer, and both shapes are identical.
9. multiaerial system as claimed in claim 8 is characterized in that, described the first antenna and described the second antenna comprise respectively:
Feeding portion is used for the feed-in electromagnetic wave signal;
Grounding parts;
The first Department of Radiation links to each other with described ground metal layer by described feeding portion; And
The second Department of Radiation links to each other with described ground metal layer by described grounding parts.
10. multiaerial system as claimed in claim 9, it is characterized in that, the first Department of Radiation of described the first antenna is inverted L shape, one end is open end, the other end links to each other with described ground metal layer by the feeding portion of described the first antenna, and described open end is wider than an end that links to each other with the feeding portion of described the first antenna.
11. multiaerial system as claimed in claim 10, it is characterized in that, the second Department of Radiation of described the first antenna is inverted L shape, the one end links to each other with described the first Department of Radiation, the other end links to each other with described ground metal layer by the grounding parts of described the first antenna, and an end that links to each other with described the first Department of Radiation is than narrow with the other end that described ground metal layer links to each other with the grounding parts by described the first antenna.
12. multiaerial system as claimed in claim 9 is characterized in that, described slotted eye is near the feeding portion of described the first antenna.
13. multiaerial system as claimed in claim 1 is characterized in that, described multi-input/output antenna also comprises a plurality of unipole antennas.
14. multiaerial system as claimed in claim 13, it is characterized in that, at least one antenna is arranged at a side vertical with the described same edge of described ground metal layer, and at least one antenna is arranged at another side relative with a described side of described ground metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124671XA CN103378414A (en) | 2012-04-25 | 2012-04-25 | Multi-aerial system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124671XA CN103378414A (en) | 2012-04-25 | 2012-04-25 | Multi-aerial system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103378414A true CN103378414A (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210124671XA Pending CN103378414A (en) | 2012-04-25 | 2012-04-25 | Multi-aerial system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733857A (en) * | 2015-03-26 | 2015-06-24 | 电子科技大学 | Miniaturized high-isolation dual-band MOMO antenna |
| WO2016127393A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Reflection surface antenna and feed source thereof |
| CN113054428A (en) * | 2019-12-29 | 2021-06-29 | 昆山睿翔讯通通信技术有限公司 | Antenna structure for improving isolation and mobile terminal |
| WO2021232658A1 (en) * | 2020-05-22 | 2021-11-25 | 华为技术有限公司 | Antenna assembly and wireless access device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588694A (en) * | 2004-07-22 | 2005-03-02 | 上海交通大学 | Small high isolation degree plane double antenna |
| US20070115181A1 (en) * | 2005-11-23 | 2007-05-24 | Samsung Electronics Co., Ltd. | Monopole antenna applicable to MIMO system |
| CN201289902Y (en) * | 2008-05-26 | 2009-08-12 | 建汉科技股份有限公司 | Antenna structure capable of hoisting isolation degree between close range antenna |
| CN101872897A (en) * | 2009-03-17 | 2010-10-27 | 捷讯研究有限公司 | The broadband, the high isolation two port antenna array that are used for the handheld device of many inputs, many outputs |
-
2012
- 2012-04-25 CN CN201210124671XA patent/CN103378414A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588694A (en) * | 2004-07-22 | 2005-03-02 | 上海交通大学 | Small high isolation degree plane double antenna |
| US20070115181A1 (en) * | 2005-11-23 | 2007-05-24 | Samsung Electronics Co., Ltd. | Monopole antenna applicable to MIMO system |
| CN201289902Y (en) * | 2008-05-26 | 2009-08-12 | 建汉科技股份有限公司 | Antenna structure capable of hoisting isolation degree between close range antenna |
| CN101872897A (en) * | 2009-03-17 | 2010-10-27 | 捷讯研究有限公司 | The broadband, the high isolation two port antenna array that are used for the handheld device of many inputs, many outputs |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127393A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Reflection surface antenna and feed source thereof |
| US10193221B2 (en) | 2015-02-13 | 2019-01-29 | Huawei Technologies Co., Ltd. | Reflector antenna and reflector antenna feed |
| CN104733857A (en) * | 2015-03-26 | 2015-06-24 | 电子科技大学 | Miniaturized high-isolation dual-band MOMO antenna |
| CN113054428A (en) * | 2019-12-29 | 2021-06-29 | 昆山睿翔讯通通信技术有限公司 | Antenna structure for improving isolation and mobile terminal |
| WO2021232658A1 (en) * | 2020-05-22 | 2021-11-25 | 华为技术有限公司 | Antenna assembly and wireless access device |
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Application publication date: 20131030 |