CN104112906A - MIMO (multiple input multiple output) antenna system and device - Google Patents
MIMO (multiple input multiple output) antenna system and device Download PDFInfo
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- CN104112906A CN104112906A CN201410353788.4A CN201410353788A CN104112906A CN 104112906 A CN104112906 A CN 104112906A CN 201410353788 A CN201410353788 A CN 201410353788A CN 104112906 A CN104112906 A CN 104112906A
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Abstract
The invention discloses an MIMO antenna system and device. The antenna device comprises antenna modules, a coaxial connector and a semi-rigid RF (radio frequency) coaxial cable or semi-flexible RF coaxial cable which is arranged on the coaxial connector and used for connecting the antenna module onto a terminal device. Each antenna module comprises a main antenna unit, a medium layer and a passive antenna unit which are sequentially adhered, wherein the main antenna unit comprises a first medium substrate with a first surface and a second surface opposite to each other, and the first surface is provided with a plurality of antenna arrays which are connected through microstrip lines; the passive antenna unit comprises a second medium substrate with a third surface and a fourth surface opposite to each other, and the third surface is provided with a plurality of passive antenna arrays; the two surfaces of the medium layer are arranged back to back and the relative dielectric constant of the medium layer is slightly larger than 1. The two antenna modules are arranged back to back. The MIMO antenna device can adjust the directions of antennas and is simple in structure.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of MIMO antenna system and antenna assembly.
Background technology
At present, wireless communication apparatus is after dispatching from the factory, and its antenna polar axis is fixed mostly, or, even some wireless communication apparatus with the direction-regulator of antenna, but the structure of the direction-regulator of this antenna is very complicated.
Summary of the invention
The technical problem to be solved in the present invention is, can not adjust the baroque defect of direction or direction-regulator for the above-mentioned antenna of prior art, and a kind of MIMO antenna system and antenna assembly are provided, and can make to adjust the direction of antenna and simple in structure.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of antenna assembly, comprise Anneta module, coaxial connector and be arranged on described coaxial connector and for described Anneta module being connected to half steel radio frequency coaxial-cable or the half soft radio frequency coaxial-cable on terminal equipment.
In antenna assembly of the present invention, described Anneta module comprises main antenna unit, dielectric layer and the parasitic antenna element that laminating arranges successively, wherein, described main antenna unit comprises first medium substrate, described first medium substrate has relative first surface and second surface, described first surface is near described dielectric layer, and on described first surface, is provided with a plurality of main antenna a period of time, and described a plurality of main antennas connected by microstrip line between a period of time; Described parasitic antenna element comprises second medium substrate, described second medium substrate has the 3rd relative surface and the 4th surface, described the 3rd surface is near described dielectric layer, and on described the 3rd surface, be provided with a plurality of passive antenna a period of time, each passive antenna a period of time is all carried out capacitive couplings with one of them main antenna a period of time by described dielectric layer; Described dielectric layer is parallel with the surface near described parasitic antenna element near the surface of described main antenna unit, and the relative dielectric constant of described dielectric layer is slightly larger than 1.
In antenna assembly of the present invention, described main antenna unit also comprises the metal level on the described second surface that is arranged on described first medium substrate.
In antenna assembly of the present invention, one end of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable is fixed on the described second surface of described first medium substrate, the other end of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable is fixed on described coaxial connector, and, the earth connection of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable connects described metal level, and the central axis of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable connects described microstrip line through the through hole being arranged on described first medium substrate.
In antenna assembly of the present invention, the quantity of described Anneta module is two, and described two Anneta modules arrange back-to-back.
In antenna assembly of the present invention, described two Anneta modules wrap up moulding by heat shrink films.
In antenna assembly of the present invention, described first medium substrate and/or described second medium substrate are flexible board.
In antenna assembly of the present invention, the shape in described a plurality of main antenna a period of time is similar with size.
In antenna assembly of the present invention, the main antenna a period of time being coupled is similar with size with the shape in passive antenna a period of time.
The present invention also constructs a kind of MIMO antenna system, comprises at least two above-described antenna assemblies, and the polarised direction quadrature of every adjacent two antenna assemblies arranges.
Implement technical scheme of the present invention, in the time need to adjusting the direction of Anneta module, user only need be folded into respective direction by half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable, therefore, can play the effect of adjusting antenna direction, and, simple in structure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structure chart of antenna assembly embodiment mono-of the present invention;
Fig. 2 A, 2B, 2C are the structure charts of the main antenna unit of an Anneta module in Fig. 1;
Fig. 3 A, 3B are the structure charts of the parasitic antenna element of an Anneta module in Fig. 1;
Fig. 4 A, 4B are respectively Anneta module signal radiation diagrams in the horizontal direction, in vertical direction in Fig. 1;
Fig. 5 is the structure chart of MIMO antenna system embodiment mono-of the present invention.
Embodiment
Fig. 1 is the structure chart of antenna assembly embodiment mono-of the present invention, and this antenna assembly comprises two Anneta modules that arrange back-to-back 1,1 ', coaxial connector 40 and is arranged on coaxial connector 40 and for two Anneta modules 1,1 ' being connected to half soft radio frequency coaxial-cable 50 on terminal equipment.Preferably, these two Anneta modules 1,1 ' are fitted by adhesive-layer 60, and coaxial connector 40 is for example SMA connector.
Take Anneta module 1 structure of an Anneta module in tomorrow line apparatus as example below, in conjunction with Fig. 2 A-2C and Fig. 3 A-3B, this Anneta module 1 comprises main antenna unit 10, dielectric layer 30 and the parasitic antenna element 20 that laminating arranges successively.
Main antenna unit 10 comprises first medium substrate 11, first medium substrate 11 has relative first surface and second surface, first surface is near dielectric layer 30, and on first surface, be provided with four main antenna a period of time 12, this four main antenna a period of time 12 are identical square of size, and by microstrip line 13, connect between these four main antenna a period of time 12.For improving the gain of this Anneta module, these four main antenna a period of time 12 are arranged in parallel, and, these four main antenna a period of time 12 are divided into two groups by putting in order, every group was comprised of with the microstrip line that is connected two main antenna a period of time 12 two main antenna a period of time 12, and made the phase place in two main antenna a period of time in every group consistent, thereby made the gain Downward addition in these two main antenna a period of time, then, then with the gain Downward addition of another group.For example, if the gain in a main antenna a period of time is 3dBi, the gain of this antenna assembly can reach 12dBi.This main antenna unit 10 also comprises the metal level 14 on the second surface that is arranged on first medium substrate 10.
Parasitic antenna element 20 comprises second medium substrate 21, this second medium substrate 21 has the 3rd relative surface and the 4th surface, the 3rd surface is near dielectric layer 30, and on the 3rd surface, be provided with four passive antenna a period of time 22, the shape in these four passive antenna a period of time 22 is identical with size with the shape in four main antenna a period of time 12 with size, and each passive antenna a period of time 22 is all carried out capacitive couplings with one of them main antenna a period of time 12 by dielectric layer 30.
Dielectric layer 30 is parallel with the surface near parasitic antenna element 20 near the surface of main antenna unit 10, and the relative dielectric constant of dielectric layer 30 is slightly larger than 1, and dielectric layer 30 is for example selected plastic foam, and its relative dielectric constant is between 1-2.
And, one end of half steel radio frequency coaxial-cable 50 is fixed on the second surface of first medium substrate 11, the other end of half steel radio frequency coaxial-cable 50 is fixed on antenna pedestal 40, and, the earth connection connection metal layer 14 of half steel radio frequency coaxial-cable 50, the central axis of half steel radio frequency coaxial-cable 50 connects microstrip line 13 through the through hole being arranged on first medium substrate 11.
The structure that should be understood that another Anneta module 1 ' is identical with the structure of Anneta module 1, at this, does not repeat.
In Anneta module, owing to selecting the dielectric layer of low-k to carry out replaces air medium, can play good supporting role to main antenna unit and parasitic antenna element, and, be easy to accomplish the upper of dielectric layer, lower surface is parallel, can make the spacing (thickness of dielectric layer) between main antenna unit and parasitic antenna element remain consistent, and, that the spacing between main antenna unit and parasitic antenna element can be done is very little, the capacity ratio being so just equivalent between main antenna unit and parasitic antenna element is larger, thereby what make that the volume in a period of time in main antenna unit and parasitic antenna element and the spacing between each a period of time can do is less, therefore, the small volume of this antenna, complied with the development of the Miniaturization Design trend of antenna.
Fig. 4 A is Anneta module signal radiation diagram in the horizontal direction, and as shown in Figure 4 A, main lobe width is larger, and radiation scope is wider; Fig. 4 B is Anneta module signal radiation diagram in vertical direction, and as shown in Figure 4 B, main lobe width is less, and the electromagnetic energy of aerial radiation is concentrated, and directionality is better.
In addition, in conjunction with Fig. 1 and Fig. 4 A, Fig. 4 B, in antenna assembly of the present invention, because two Anneta modules 1,1 ' arrange back-to-back, that is, the second surface (back side) of the first medium plate 11 of Anneta module 1 arranges by adhesive-layer 60 laminatings with the second surface (back side) of Anneta module 1 ', so, the spatial distribution of the radiation field intensity of this antenna assembly is approximately spheroid, thereby makes this antenna assembly when having higher gain, also has advantages of that coverage is large.
In the time need to adjusting the direction of antenna assembly, user only need be folded into respective direction by half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable, therefore, can play the effect of adjusting antenna direction, and, simple in structure.
Preferably, in antenna assembly, two Anneta modules 1,1 ' wrap up moulding by heat shrink films, can further save like this volume of this antenna assembly.
Preferably, in each Anneta module, first medium substrate and/or second medium substrate are flexible board, are more convenient for like this adjusting the direction of antenna.Main antenna a period of time and passive antenna a period of time are respectively metal patch, for example, be Copper Foil paster.Metal level is also Copper Foil.
Finally also it should be noted that, in above embodiment, four main antenna a period of time 12 and four passive antenna a period of time 22 are square, and size is identical, and in other embodiments, the number in main antenna a period of time and passive antenna a period of time can be selected other quantity according to actual needs, and, the shape in a plurality of main antenna a period of time and size can be not identical yet, and for example, shape is similar with size.The shape in passive antenna a period of time can be not identical with size with the shape in main antenna a period of time with size yet, and for example, shape is similar with size.In addition, half soft radio frequency coaxial-cable 50 also can substitute with half steel radio frequency coaxial-cable.
The present invention also constructs the antenna system of a kind of MIMO, and as shown in Figure 5, this antenna system comprises two antenna assemblies described in above-described embodiment, and the polarised direction quadrature of these two antenna assemblies arranges.
Should be understood that in other embodiment of MIMO antenna system of the present invention, can comprise the antenna assembly described in plural above-described embodiment, and the polarised direction quadrature of every adjacent two antenna assemblies arranges.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (10)
1. an antenna assembly, is characterized in that, comprises Anneta module, coaxial connector and is arranged on described coaxial connector and for described Anneta module being connected to half steel radio frequency coaxial-cable or the half soft radio frequency coaxial-cable on terminal equipment.
2. antenna assembly according to claim 1, it is characterized in that, described Anneta module comprises main antenna unit, dielectric layer and the parasitic antenna element that laminating arranges successively, wherein, described main antenna unit comprises first medium substrate, and described first medium substrate has relative first surface and second surface, and described first surface is near described dielectric layer, and on described first surface, be provided with a plurality of main antenna a period of time, described a plurality of main antennas connected by microstrip line between a period of time; Described parasitic antenna element comprises second medium substrate, described second medium substrate has the 3rd relative surface and the 4th surface, described the 3rd surface is near described dielectric layer, and on described the 3rd surface, be provided with a plurality of passive antenna a period of time, each passive antenna a period of time is all carried out capacitive couplings with one of them main antenna a period of time by described dielectric layer; Described dielectric layer is parallel with the surface near described parasitic antenna element near the surface of described main antenna unit, and the relative dielectric constant of described dielectric layer is slightly larger than 1.
3. antenna assembly according to claim 2, is characterized in that, described main antenna unit also comprises the metal level on the described second surface that is arranged on described first medium substrate.
4. antenna assembly according to claim 3, it is characterized in that, one end of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable is fixed on the described second surface of described first medium substrate, the other end of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable is fixed on described coaxial connector, and, the earth connection of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable connects described metal level, the central axis of described half steel radio frequency coaxial-cable or half soft radio frequency coaxial-cable connects described microstrip line through the through hole being arranged on described first medium substrate.
5. antenna assembly according to claim 2, is characterized in that, the quantity of described Anneta module is two, and described two Anneta modules arrange back-to-back.
6. antenna assembly according to claim 5, is characterized in that, described two Anneta modules wrap up moulding by heat shrink films.
7. antenna assembly according to claim 2, is characterized in that, described first medium substrate and/or described second medium substrate are flexible board.
8. antenna assembly according to claim 2, is characterized in that, the shape in described a plurality of main antenna a period of time is similar with size.
9. antenna assembly according to claim 2, is characterized in that, the main antenna a period of time being coupled is similar with size with the shape in passive antenna a period of time.
10. a MIMO antenna system, is characterized in that, comprises at least two antenna assemblies described in claim 1-9 any one, and the polarised direction quadrature of every adjacent two antenna assemblies arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353788.4A CN104112906A (en) | 2014-07-23 | 2014-07-23 | MIMO (multiple input multiple output) antenna system and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353788.4A CN104112906A (en) | 2014-07-23 | 2014-07-23 | MIMO (multiple input multiple output) antenna system and device |
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| CN104112906A true CN104112906A (en) | 2014-10-22 |
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| CN201410353788.4A Pending CN104112906A (en) | 2014-07-23 | 2014-07-23 | MIMO (multiple input multiple output) antenna system and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356647A (en) * | 2016-11-04 | 2017-01-25 | 中国科学院深圳先进技术研究院 | Bending antenna array and layout method thereof |
| CN110137696A (en) * | 2018-02-08 | 2019-08-16 | ***通信集团公司 | A kind of antenna and communication terminal |
| WO2020199927A1 (en) * | 2019-04-02 | 2020-10-08 | 维沃移动通信有限公司 | Antenna structure and communication terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050110683A1 (en) * | 2003-11-24 | 2005-05-26 | Song Peter C. | Low cost multi-beam, multi-band and multi-diversity antenna systems and methods for wireless communications |
| CN1736000A (en) * | 2003-01-31 | 2006-02-15 | Ems技术公司 | Low-cost antenna array |
| CN103165987A (en) * | 2011-12-14 | 2013-06-19 | 中国钢铁股份有限公司 | Antenna array device |
-
2014
- 2014-07-23 CN CN201410353788.4A patent/CN104112906A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736000A (en) * | 2003-01-31 | 2006-02-15 | Ems技术公司 | Low-cost antenna array |
| US20050110683A1 (en) * | 2003-11-24 | 2005-05-26 | Song Peter C. | Low cost multi-beam, multi-band and multi-diversity antenna systems and methods for wireless communications |
| CN103165987A (en) * | 2011-12-14 | 2013-06-19 | 中国钢铁股份有限公司 | Antenna array device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356647A (en) * | 2016-11-04 | 2017-01-25 | 中国科学院深圳先进技术研究院 | Bending antenna array and layout method thereof |
| CN110137696A (en) * | 2018-02-08 | 2019-08-16 | ***通信集团公司 | A kind of antenna and communication terminal |
| WO2020199927A1 (en) * | 2019-04-02 | 2020-10-08 | 维沃移动通信有限公司 | Antenna structure and communication terminal |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20151020 Address after: 518101 Guangdong Province, Baoan District Xixiang Street on the south side of Shenzhen City Tian Yi Lu Bao Xing Hong Technology Park plant A plant on the south side of 04 Applicant after: Shenzhen Crystal Video Technology Co., Ltd. Address before: 518101 Guangdong Province, Shenzhen city Baoan District West Township Po Tin all the way south star Acer Technology Park building A building 04 floor of the South Applicant before: Shenzhen Crystal Video Technology Co., Ltd. Applicant before: SHENZHEN SHIJING FIGURE TRANSMISSION TECHNOLOGY CO., LTD. |
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Application publication date: 20141022 |