CN205029016U - Multiple -input multiple -output antenna and electronic equipment - Google Patents
Multiple -input multiple -output antenna and electronic equipment Download PDFInfo
- Publication number
- CN205029016U CN205029016U CN201520794337.4U CN201520794337U CN205029016U CN 205029016 U CN205029016 U CN 205029016U CN 201520794337 U CN201520794337 U CN 201520794337U CN 205029016 U CN205029016 U CN 205029016U
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- CN
- China
- Prior art keywords
- antenna
- printed circuit
- circuit board
- pcb
- antenna element
- 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.)
- Expired - Fee Related
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Classifications
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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
Abstract
The utility model provides a multiple -input multiple -output antenna and electronic equipment, this MIMO antenna includes: printed circuit board sets up at positive two the at least antenna element of printed circuit board, sets up the component of decoupling at printed circuit board to and the floor of setting at the printed circuit board back, two antenna element among two at least antenna element are connected to the member electricity of decoupling. Through the utility model discloses an implement, set up the member of decoupling between the antenna, the coupling that goes through the member of decoupling reduces between the antenna distance to the influence of the degree of coupling after the antenna, and then has improved the isolation between the antenna, when guaranteeing antenna radiation efficiency, has realized high isolation's between distance two very near antennas requirement, has solved in the present MIMO antenna that the isolation receives day linear distance to influence great problem between the antenna.
Description
Technical field
The utility model relates to the communications field, particularly relates to a kind of MIMO (Multiple-InputMultiple-Output, multiple-input, multiple-output) antenna and electronic equipment.
Background technology
Along with development communication technologies, there has been higher requirement in market for the design of end product and performance, the while of should ensureing that two-forty is high performance on the one hand, on the other hand again towards the future development that product size is more miniaturized; And mimo antenna is as LTE (LongTermEvolution, Long Term Evolution) the necessary antenna system of end product, in the confined space, how to reduce the effect of intercoupling between multiple antenna, improve the isolation between antenna, ensure that the performance of antenna has then become an important directions of research.
In existing end product, mimo antenna uses multiple antenna to transmit and receive at transmitting terminal and receiving terminal simultaneously, owing to being subject to package size, the restriction of space layout, electrical distance between antenna is difficult to reach the length being greater than 1/2nd wavelength usually, thus, just inevitably cause the effect of intercoupling between antenna, and according to existing Antenna Design, distance between two antennas the closer to, the performance of each antenna of same frequency place is better, then antenna coupling is each other more serious, isolation is lower, thus have influence on transmitting and the receiving efficiency of product, affect the performance index of product.
Therefore, how providing a kind of spacing reducing antenna on the mimo antenna of the impact of isolation between antenna, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The utility model provides a kind of mimo antenna and electronic equipment, to solve the more serious problem of the nearlyer coupling of existing mimo antenna antenna distance.
The utility model provides a kind of mimo antennas, and it comprises: printed circuit board (PCB), is arranged at least two antenna elements in printed circuit board (PCB) front, is arranged on the decoupling component of printed circuit board (PCB), and is arranged on the floor of printed circuit back; Two antenna elements in decoupling component electrical connection at least two antenna elements.
Further, antenna element is the monopole antenna being printed in printed circuit board (PCB).
Further, antenna element is the bracket antenna being arranged on printed circuit board (PCB).
Further, antenna element is the laser direct forming antenna of radium carving at printed circuit board (PCB).
Further, two antenna elements that decoupling component connects are symmetricly set on printed circuit board (PCB) one end; Decoupling component comprises the metal frame of single-ended opening, and the prolongation limit identical with the length that the openend of metal frame connects, and extends limit electrical connection antenna element; Metal frame and extend limit and be printed on printed circuit board (PCB), or, be printed on the flexible PCB pasted with printed circuit board (PCB).
Further, floor comprises empty regions, and empty regions is corresponding with the region that printed circuit board (PCB) front is provided with antenna element.
Further, decoupling component coordinates with floor and forms microstrip line component.
Further, antenna element turns over the mode feed of layer by punching.
Further, the side degree of depth of metal frame is arranged according to the isolation of two antenna elements with prolongation edge lengths.
The utility model provides a kind of electronic equipment, its mimo antennas using the utility model to provide.
The beneficial effects of the utility model:
The utility model provides a kind of mimo antenna, by arranging decoupling component between two antennas, be used for reducing the spacing of antenna to the impact of the degree of coupling between antenna by the uncoupling of decoupling component, and then the isolation that improve in mimo antenna between two antennas, while guarantee antenna radiation efficiency, achieve the requirement of high-isolation between very near two antennas of distance, solving in existing mimo antenna isolation between antenna affects larger problem by antenna distance.
Accompanying drawing explanation
The structural representation of the mimo antenna that Fig. 1 provides for the utility model first embodiment;
The front schematic view of the mimo antenna that Fig. 2 provides for the utility model second embodiment;
The schematic rear view of the mimo antenna that Fig. 3 provides for the utility model second embodiment;
Fig. 4 is the schematic diagram of the antenna element in the utility model second embodiment;
Fig. 5 is the schematic diagram of the decoupling component in the utility model second embodiment;
Fig. 6 is the return loss schematic diagram of the mimo antenna in the utility model second embodiment;
Fig. 7 is the isolation curve chart of the mimo antenna in the utility model second embodiment;
Fig. 8 is the isolation curve chart of existing mimo antenna;
Fig. 9 is the far field radiation pattern of the mimo antenna in the utility model second embodiment.
Embodiment
Now by embodiment mode by reference to the accompanying drawings the utility model made and further annotate explanation.
First embodiment:
The structural representation of the mimo antenna that Fig. 1 provides for the utility model first embodiment, as shown in Figure 1, in the present embodiment, the mimo antenna that the utility model provides comprises: printed circuit board (PCB) 1, be arranged at least two antenna elements 2 in printed circuit board (PCB) 1 front, be arranged on the decoupling component 3 of printed circuit board (PCB), and be arranged on the floor 4 of printed circuit back; Decoupling component 3 is electrically connected two antenna elements 2 at least two antenna elements 2.In actual applications, decoupling component 3 is electrically connected when antenna element 2 is included in printing and adopts same metal material one-body molded, or is realized by modes such as electric conducting material connections.
In certain embodiments, the antenna element 2 in above-described embodiment is for being printed in the monopole antenna of printed circuit board (PCB), and this antenna form is described in a second embodiment.
In certain embodiments, the antenna element 2 in above-described embodiment is for being arranged on the bracket antenna of printed circuit board (PCB).In actual applications, on basis of the present utility model, bracket antenna can be used to increase antenna height, change the operating frequency bracket antenna of antenna, can reach equally and mutually disturb between antenna, as the inhibition of coupling.
In certain embodiments, the antenna element 2 in above-described embodiment is for radium carving is at the laser direct forming LDS antenna of printed circuit board (PCB).In actual applications, on basis of the present utility model, LDS antenna can be used by direct for cabling radium carving at structural member surface, antenna height can be increased equally, change operating frequency of antenna, can reach equally and mutually disturb between antenna, as the inhibition of coupling.
In certain embodiments, as shown in Figure 1, two antenna elements 2 that the decoupling component 3 in above-described embodiment connects are symmetricly set on printed circuit board (PCB) one end; Decoupling component 3 comprises the metal frame of single-ended opening, and the prolongation limit identical with the length that the openend of metal frame connects, and extends limit electrical connection antenna element; Metal frame and extend limit and be printed on printed circuit board (PCB), or, be printed on the flexible PCB pasted with printed circuit board (PCB).
In certain embodiments, as shown in Figure 1, the floor 4 in above-described embodiment comprises empty regions, and empty regions is corresponding with the region that printed circuit board (PCB) front is provided with antenna element.
In actual applications, microstrip line construction need not be connected with floor, front cabling, and the back side has the structure on ground to be referred to as microstrip line construction; Therefore, in certain embodiments, the decoupling component 3 in above-described embodiment coordinates with floor 4 and forms microstrip line component.
In certain embodiments, the antenna element 2 in above-described embodiment turns over the mode feed of layer by punching.
In certain embodiments, the side degree of depth and the prolongation edge lengths of the metal frame in above-described embodiment are arranged according to needing the isolation reached between two antenna elements 2.
Corresponding, the utility model provides a kind of electronic equipment, its mimo antennas using the utility model to provide.
Now in conjunction with embody rule scene the utility model done and further annotate explanation.
Second embodiment:
How mimo antenna, as the necessary antenna system of LTE terminal product, reduces the effect of intercoupling between multiple antenna in the confined space, improves the isolation between antenna, ensures that the performance of antenna becomes the important directions reducing equipment volume.
The mimo antenna that the present embodiment provides, while guarantee antenna radiation efficiency, achieves the requirement of high-isolation between two very near antennas of distance.In the prior art, return loss S11 between the antenna of mimo antenna is (when port 2 mates, the reflection coefficient of port one) and isolation S21 (when port 2 mates, port one is to the forward transmission coefficient of port 2) present the characteristic of negative correlation, namely the return loss S11 of antenna is better, isolation S21 then between two antennas is poorer, and the mimo antenna that the present embodiment provides adopts the decoupling component of microstrip line construction on pcb board, the forward achieved in the band limits of 2.3GHz-2.7GHz between the return loss S11 of antenna and isolation S21 is correlated with, namely two S11s of antenna under same frequency are better, its isolation S21 is each other also better, coupling between antenna is well suppressed.
As seen in figures 2 and 3, the mimo antenna that the present embodiment provides comprises: antenna element 21, antenna element 22, the dielectric material plate 1 as printed circuit board (PCB), decoupling component 3, metal floor 4.Antenna element 21 and antenna element 22 adjacent to each other, and be symmetrically distributed in dielectric material plate 1 front end, form PCB antenna battle array; Dielectric material plate 1 select dielectric constant be 4.4 FR4 dielectric-slab; Decoupling component 3 is also printed on dielectric material plate 1 front, is directly connected with PCB antenna battle array, for eliminating being coupled between antenna element 21 with antenna element 22, each antenna element can be worked alone, can form antenna array work again; Metal floor 4 is printed on the back side of dielectric material plate 1, and the zonal corrosion of corresponding PCB antenna battle array hollows out, and forms empty regions, and coordinates with decoupling component 3 and form microstrip line construction, improve the impedance operator between antenna by microstrip line construction.
With reference to Fig. 4, antenna element 21 and antenna element 22 all adopt the antenna form of monopole, change S11, resonance point position of adjusting frequency by the length changing a, b, c.
With reference to Fig. 5, decoupling component 3 is connected with antenna element 21, antenna element 22, with floor 4 component part microstrip line construction, regulates S21 by the length adjusting m, n, makes the distribution trend of S21 and S11 present forward and is correlated with.
With reference to this example integral layout front view shown in Fig. 2, in actual applications, dielectric material plate 1 select dielectric constant be 4.4 FR4 dielectric-slab, be of a size of 60mm*30mm*1mm; With reference to this example integral layout rear view shown in Fig. 3, metal floor 4 is printed on the FR4 dielectric-slab back side, and the empty regions gross area is 30mm*7mm; Antenna element 21 is printed on FR4 dielectric-slab front, is of a size of 12.5mm*7mm, and trace width is 1mm, turns over layer mode be connected feed with floor, the back side by punching; Antenna element 22 adopts identical version with antenna element 21, is symmetrically distributed in empty regions two ends; Decoupling component 3 is connected with antenna element 21, antenna element 22 symmetry, is of a size of 5mm*4mm.
With reference to Fig. 6, for the result of this example antenna return loss, as can be seen from the figure the S11 of the antenna element 21 and S22 of antenna element 22 distributes consistent, and in the band limits of 2.3GHz-2.7GHz, return loss is all less than-6dB, in this band limits, present good service behaviour.
With reference to Fig. 7, for the curve of this example two isolation between antennas, isolation curve distribution after comparison diagram 8 removes decoupling component between (existing antenna system) two antennas, can find out, within the scope of this working frequency range, this decoupling component serves good inhibitory action really for the mutual interference between two antennas.
With reference to Fig. 9, be the far field radiation pattern of this example antenna system, as can be seen from Figure, this antenna system has good omni-directional.
Scheme described by the present embodiment can be close to each other to multiple antennas, when physical size cannot meet insulated degree requirement, the coupling between each antenna is suppressed by use decoupling network, make each antenna in identical working frequency range, present good operating characteristic and good isolation, disturb problem for solving mutually between mimo antenna, improve space layout problem, all there is good directive significance the aspects such as reduction product size problem, and simple, applicability is strong.
In summary, by enforcement of the present utility model, at least there is following beneficial effect:
The utility model provides a kind of mimo antenna, by arranging decoupling component between antennas, be used for reducing the spacing of antenna to the impact of the degree of coupling after antenna by the uncoupling of decoupling component, and then the isolation that improve between multiple antennas, the mimo antenna that the application provides is while guarantee antenna radiation efficiency, achieve the requirement of high-isolation between very near two antennas of distance, solving in existing mimo antenna isolation between antenna affects larger problem by antenna distance.
Below be only embodiment of the present utility model; not any pro forma restriction is done to the utility model; every above execution mode is done according to technical spirit of the present utility model any simple modification, equivalent variations, combination or modification, all still belong to the protection range of technical solutions of the utility model.
Claims (10)
1. a mimo antennas, is characterized in that, comprising: printed circuit board (PCB), is arranged at least two antenna elements in described printed circuit board (PCB) front, is arranged on the decoupling component of described printed circuit board (PCB), and is arranged on the floor of described printed circuit back; Two antenna elements at least two antenna elements described in described decoupling component electrical connection.
2. mimo antennas as claimed in claim 1, it is characterized in that, described antenna element is the monopole antenna being printed in described printed circuit board (PCB).
3. mimo antennas as claimed in claim 1, it is characterized in that, described antenna element is the bracket antenna being arranged on described printed circuit board (PCB).
4. mimo antennas as claimed in claim 1, is characterized in that, described antenna element is the laser direct forming antenna of radium carving at described printed circuit board (PCB).
5. the mimo antennas as described in any one of Claims 1-4, is characterized in that, two antenna elements that described decoupling component connects are symmetricly set on described printed circuit board (PCB) one end; Described decoupling component comprises the metal frame of single-ended opening, and the prolongation limit identical with the length that the openend of described metal frame connects, and described prolongation limit is electrically connected described antenna element; Described metal frame and described prolongation limit are printed on described printed circuit board (PCB), or, be printed on the flexible PCB pasted with described printed circuit board (PCB).
6. mimo antennas as claimed in claim 5, it is characterized in that, described floor comprises empty regions, and described empty regions is corresponding with the region that described printed circuit board (PCB) front is provided with antenna element.
7. mimo antennas as claimed in claim 5, is characterized in that, described decoupling component coordinates with described floor and forms microstrip line component.
8. mimo antennas as claimed in claim 5, is characterized in that, described antenna element turns over the mode feed of layer by punching.
9. mimo antennas as claimed in claim 5, it is characterized in that, the side degree of depth and the described prolongation edge lengths of described metal frame are arranged according to the isolation of described two antenna elements.
10. an electronic equipment, is characterized in that, uses the mimo antennas as described in any one of claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520794337.4U CN205029016U (en) | 2015-10-14 | 2015-10-14 | Multiple -input multiple -output antenna and electronic equipment |
| PCT/CN2016/085492 WO2016197983A1 (en) | 2015-10-14 | 2016-06-12 | Multi-input multi-output antenna and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520794337.4U CN205029016U (en) | 2015-10-14 | 2015-10-14 | Multiple -input multiple -output antenna and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205029016U true CN205029016U (en) | 2016-02-10 |
Family
ID=55261523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520794337.4U Expired - Fee Related CN205029016U (en) | 2015-10-14 | 2015-10-14 | Multiple -input multiple -output antenna and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205029016U (en) |
| WO (1) | WO2016197983A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197983A1 (en) * | 2015-10-14 | 2016-12-15 | 中兴通讯股份有限公司 | Multi-input multi-output antenna and electronic device |
| CN107579351A (en) * | 2016-07-05 | 2018-01-12 | 安普泰科电子韩国有限公司 | Antenna module |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| WO2018028323A1 (en) * | 2016-08-08 | 2018-02-15 | 华为技术有限公司 | Antenna system |
| CN108808228A (en) * | 2018-08-23 | 2018-11-13 | 维沃移动通信有限公司 | A kind of antenna system and electronic equipment |
| CN110027161A (en) * | 2019-03-15 | 2019-07-19 | 华尔达（厦门）塑胶有限公司 | A kind of production method of the band with antenna |
| CN110137664A (en) * | 2019-05-08 | 2019-08-16 | 清华大学 | A kind of two antenna set at broadband 5G MIMO terminal antenna |
| CN110459869A (en) * | 2019-08-15 | 2019-11-15 | 河海大学 | A kind of element microstrip monopole antenna based on PEG structure |
| WO2020088264A1 (en) * | 2018-11-02 | 2020-05-07 | 中兴通讯股份有限公司 | Antenna structure and terminal |
| US10651553B2 (en) | 2018-05-30 | 2020-05-12 | Wistron Neweb Corporation | Antenna structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111180881B (en) * | 2020-02-12 | 2022-06-10 | Tcl移动通信科技（宁波）有限公司 | Common antenna device |
| CN112768919A (en) * | 2020-12-30 | 2021-05-07 | 深圳市信丰伟业科技有限公司 | High-isolation microstrip MIMO antenna system |
| CN114447595B (en) * | 2022-01-13 | 2023-03-21 | 西安电子科技大学 | Double-port-ring antenna with zero clearance and high isolation characteristics and mobile terminal equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104185A (en) * | 2010-12-01 | 2011-06-22 | 中兴通讯股份有限公司 | Multiple input multiple output (MIMO) array antenna |
| CN202855894U (en) * | 2012-09-18 | 2013-04-03 | 桂林电子科技大学 | High isolation double unit MIMO array antenna |
| TWI497824B (en) * | 2012-11-06 | 2015-08-21 | Wistron Neweb Corp | Decoupling circuit and antenna device |
| CN205029016U (en) * | 2015-10-14 | 2016-02-10 | 中兴通讯股份有限公司 | Multiple -input multiple -output antenna and electronic equipment |
-
2015
- 2015-10-14 CN CN201520794337.4U patent/CN205029016U/en not_active Expired - Fee Related
-
2016
- 2016-06-12 WO PCT/CN2016/085492 patent/WO2016197983A1/en active Application Filing
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197983A1 (en) * | 2015-10-14 | 2016-12-15 | 中兴通讯股份有限公司 | Multi-input multi-output antenna and electronic device |
| CN107579351A (en) * | 2016-07-05 | 2018-01-12 | 安普泰科电子韩国有限公司 | Antenna module |
| TWI763682B (en) * | 2016-07-05 | 2022-05-11 | 韓商太谷電子恩普(韓國)股份有限公司 | Antenna assembly |
| WO2018028323A1 (en) * | 2016-08-08 | 2018-02-15 | 华为技术有限公司 | Antenna system |
| US10923808B2 (en) | 2016-08-08 | 2021-02-16 | Huawei Technologies Co., Ltd. | Antenna system |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| US10651553B2 (en) | 2018-05-30 | 2020-05-12 | Wistron Neweb Corporation | Antenna structure |
| CN108808228A (en) * | 2018-08-23 | 2018-11-13 | 维沃移动通信有限公司 | A kind of antenna system and electronic equipment |
| WO2020088264A1 (en) * | 2018-11-02 | 2020-05-07 | 中兴通讯股份有限公司 | Antenna structure and terminal |
| CN110027161A (en) * | 2019-03-15 | 2019-07-19 | 华尔达（厦门）塑胶有限公司 | A kind of production method of the band with antenna |
| CN110137664A (en) * | 2019-05-08 | 2019-08-16 | 清华大学 | A kind of two antenna set at broadband 5G MIMO terminal antenna |
| CN110459869A (en) * | 2019-08-15 | 2019-11-15 | 河海大学 | A kind of element microstrip monopole antenna based on PEG structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197983A1 (en) | 2016-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20161014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |