CN201562752U - mimo ceiling antenna - Google Patents
mimo ceiling antenna Download PDFInfo
- Publication number
- CN201562752U CN201562752U CN2009202457849U CN200920245784U CN201562752U CN 201562752 U CN201562752 U CN 201562752U CN 2009202457849 U CN2009202457849 U CN 2009202457849U CN 200920245784 U CN200920245784 U CN 200920245784U CN 201562752 U CN201562752 U CN 201562752U
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- radiating element
- reflecting plate
- ground connection
- radiation
- mimo
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- 230000005855 radiation Effects 0.000 abstract description 20
- 230000010287 polarization Effects 0.000 description 12
- 230000009977 dual effect Effects 0.000 description 11
- 238000010295 mobile communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
本实用新型涉及一种MIMO吸顶天线，包括由第一个半波阵子组成的第一辐射单元；由第二个半波阵子组成的第二辐射单元以及用于固定第一辐射单元和第二辐射单元的支撑棒；所述第一辐射单元水平设置，所述第二辐射单元的第二个半波振子垂直设置在第一辐射单元两侧；所述第一辐射单元与第二辐射单元上端设置有第一接地反射板；所述第一辐射单元与第二辐射单元下端设置有第二接地反射板；所述第二接地反射板为圆形板或倒圆锥形；所述第二接地反射板尺寸小于第一接地反射板尺寸。本实用新型改善双极化吸顶天线的辐射形式，使室内双极化吸顶天线的结构相对简化，较优的满足室内覆盖的要求。
The utility model relates to a MIMO ceiling antenna, which comprises a first radiation unit composed of a first half-wave array; a second radiation unit composed of a second half-wave array; The supporting rod of the radiating unit; the first radiating unit is arranged horizontally, and the second half-wave oscillator of the second radiating unit is vertically arranged on both sides of the first radiating unit; the upper end of the first radiating unit and the second radiating unit A first ground reflection plate is provided; a second ground reflection plate is provided at the lower end of the first radiation unit and the second radiation unit; the second ground reflection plate is a circular plate or an inverted cone; the second ground reflection The size of the plate is smaller than the size of the first ground reflector. The utility model improves the radiation form of the dual-polarization ceiling antenna, relatively simplifies the structure of the indoor dual-polarization ceiling antenna, and satisfies the requirements of indoor coverage better.
Description
Technical field
The utility model relates to a kind of mobile communication antenna, relates in particular to a kind of MIMO ceiling mount antenna of mobile communication indoor distribution system.
Background technology
Cover and capacity is two major parameters that the mobile communication performance is weighed,, adopt outdoor grand station covering chamber inner region, can cause coverage hole, like this mobile communication poor-performing of indoor user because building walls can be to the electromagnetic transmission generation than overdamp.Usually the method that addresses this problem is indoor covering scheme.Indoor ceiling mount antenna is the visual plant of indoor covering, and common indoor ceiling mount antenna is inner to adopt omni directional monopoles a period of time to carry out electromagenetic wave radiation.
MIMO (multiple-input and multiple-output) technology has improved the availability of frequency spectrum of wireless communication system greatly, and especially indoor stable, abundant multipath wireless environment is very beneficial for using the MIMO multi-antenna technology.For indoor distributed system, the passage correlation is the major parameter that influences many days systematic functions of MIMO, and the wireless channel correlation is more little between the passage, is suitable for using MIMO multithread transmission more, finally improves the indoor covering system availability of frequency spectrum.In order to guarantee there is constant low correlation between different each passage, introduced indoor dual polarization ceiling mount antenna.But because the directionality of dual polarization antenna radiation unit, the antenna radiation unit modes of emplacement directly influences dual polarization ceiling mount antenna forms of radiation, and existing MIMO ceiling mount antenna can't satisfy the requirement of indoor covering, and complex structure.
The utility model content
The purpose of this utility model is to provide a kind of MIMO ceiling mount antenna, makes it when satisfying the dual polarization characteristic, the more excellent requirement of satisfying indoor covering.
Another purpose of the present utility model is: realize that only finishing indoor dual polarization with a pair of directed dual polarization a period of time covers, thereby reduced the implementation complexity and the size of common indoor dual polarized antenna.
In order to achieve the above object, the utility model is achieved in that a kind of MIMO ceiling mount antenna, it is characterized in that comprising:
First radiating element of forming by first half-wave a period of time;
Second radiating element of forming by second half-wave a period of time;
The support stick that is used for fixing described first radiating element and described second radiating element;
Described first radiating element is horizontally disposed with and passes support stick, and described second radiating element is vertically set on the described first radiating element both sides;
Described first radiating element and described second radiating element upper end are provided with the first ground connection reflecting plate;
Described first radiating element and the described second radiating element lower end are provided with the second ground connection reflecting plate;
The described second ground connection reflecting plate is circular slab or turbination; The described second ground connection reflecting plate size is less than the first ground connection reflecting plate size.
The distance of described first radiating element and the described first ground connection reflecting plate is the integral multiple wavelength.
The distance of described first radiating element and the described second ground connection reflecting plate is a 0.2-0.4 times of wavelength.
Described first ground connection reflecting plate and the described second ground connection reflecting plate are metallic plate.
Compared with prior art, the utility model utilizes the little reflecting plate of half-wave a period of time below, with the signal reflex of the radiating element downward radiation of horizontal polarization directions to the next door radiation, can improve the forms of radiation of dual polarization ceiling mount antenna like this, the structure of indoor dual polarization ceiling mount antenna is simplified relatively, the more excellent requirement of satisfying indoor covering.
Description of drawings
Fig. 1 is a three-dimensional schematic side view of the present utility model;
Fig. 2 is a three-dimensional schematic top plan view of the present utility model.
Embodiment
Working frequency range comprises following part at the MIMO of the TDD-LTE of 2310MHz ceiling mount antenna as shown in Figure 1, 2:
First radiating element of forming by half-wave a period of time of a metal material 1, second radiating element of forming by half-wave a period of time of a metal material 2;
First radiating element 1 is horizontally disposed with, and the center is that support stick 3, the second radiating elements 2 are vertically set on first radiating element, 1 both sides; First radiating element, 1 radiation direction along vertical line downwards and upwards, the half-wave dipole radiation direction along continuous straight runs of second radiating element 2 carries out radiation;
Be mutually cross polarization characteristics between first radiating element 1 and second radiating element 2;
First radiating element 1 and second radiating element 2 are fixing by the support stick 3 of metal material;
First radiating element 1 and second radiating element, 2 upper ends are provided with the first circular metallic reflection plate 4, are used for the radiated wave that first radiating element 1 makes progress is reflected;
First radiating element 1 and second radiating element, 2 lower ends are provided with the second circular metallic reflection plate 5, are used for first radiating element, 1 downward radiated wave is reflected;
The distance of first radiating element 1 and the first metallic reflection plate 4 is a wavelength;
The distance of first radiating element 1 and the second metallic reflection plate 5 is a quarter-wave;
The second metallic reflection plate 5 can be circular slab or turbination;
The second metallic reflection plate, 5 sizes are less than its top reflecting plate size.
Be provided with support frame 6 between the first metallic reflection plate 4 and the second metallic reflection plate 5.
Because the second metallic reflection plate 5 is less, thus first radiating element, 1 downward radiated wave partly be reflected, thereby can be with radiated wave to the radiation of antenna peripheral region, rather than concentrated downward radiation.
According to different demands, the distance of first radiating element 1 and the first metallic reflection plate 4 can be set to other integral multiple wavelength; The distance of first radiating element 1 and the second metallic reflection plate 5 is a 0.2-0.4 times of wavelength.
The utility model utilizes the little reflecting plate of half-wave a period of time below, with the signal reflex of the radiating element downward radiation of horizontal polarization directions to the next door radiation, can improve the forms of radiation of dual polarization ceiling mount antenna like this, the structure of indoor dual polarization ceiling mount antenna is simplified relatively, improved radiation effect, the more excellent requirement of satisfying indoor covering.
Claims (4)
1. MIMO ceiling mount antenna is characterized in that comprising:
First radiating element of forming by first half-wave a period of time;
Second radiating element of forming by second half-wave a period of time;
The support stick that is used for fixing described first radiating element and described second radiating element;
Described first radiating element is horizontally disposed with, and described second radiating element is vertically set on the described first radiating element both sides;
Described first radiating element and described second radiating element upper end are provided with the first ground connection reflecting plate;
Described first radiating element and the described second radiating element lower end are provided with the second ground connection reflecting plate;
The described second ground connection reflecting plate is circular slab or turbination; The described second ground connection reflecting plate size is less than the first ground connection reflecting plate size.
2. a kind of MIMO ceiling mount antenna according to claim 1, the distance that it is characterized in that described first radiating element and the described first ground connection reflecting plate is the integral multiple wavelength.
3. a kind of MIMO ceiling mount antenna according to claim 1 and 2, the distance that it is characterized in that described first radiating element and the described second ground connection reflecting plate are 0.2-0.4 times of wavelength.
4. a kind of MIMO ceiling mount antenna according to claim 1 and 2 is characterized in that described first ground connection reflecting plate and the described second ground connection reflecting plate are metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202457849U CN201562752U (en) | 2009-12-15 | 2009-12-15 | mimo ceiling antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202457849U CN201562752U (en) | 2009-12-15 | 2009-12-15 | mimo ceiling antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562752U true CN201562752U (en) | 2010-08-25 |
Family
ID=42627905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202457849U Expired - Fee Related CN201562752U (en) | 2009-12-15 | 2009-12-15 | mimo ceiling antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9923265B2 (en) | 2014-07-03 | 2018-03-20 | Swisscom Ag | Low-profile antennas |
| CN109428148A (en) * | 2017-08-30 | 2019-03-05 | 比亚迪股份有限公司 | Mimo antenna |
-
2009
- 2009-12-15 CN CN2009202457849U patent/CN201562752U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9923265B2 (en) | 2014-07-03 | 2018-03-20 | Swisscom Ag | Low-profile antennas |
| CN109428148A (en) * | 2017-08-30 | 2019-03-05 | 比亚迪股份有限公司 | Mimo antenna |
| CN109428148B (en) * | 2017-08-30 | 2020-03-31 | 比亚迪股份有限公司 | MIMO antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20101215 |