CN106876884A - A kind of mimo antenna of high-isolation - Google Patents
A kind of mimo antenna of high-isolation Download PDFInfo
- Publication number
- CN106876884A CN106876884A CN201510908314.6A CN201510908314A CN106876884A CN 106876884 A CN106876884 A CN 106876884A CN 201510908314 A CN201510908314 A CN 201510908314A CN 106876884 A CN106876884 A CN 106876884A
- Authority
- CN
- China
- Prior art keywords
- antenna
- mimo antenna
- isolation
- mimo
- counterfoil
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of mimo antenna of high-isolation, it is characterised in that it includes：Medium substrate (104), two antenna radiation units (101), two microstrip feed lines (102), T-shaped counterfoil (104), two open-type resonators (105), earth plate (106) compositions；Characterized in that, two radiating elements are plane E font metal patches, opening direction is oblique outwardly.Mimo antenna working frequency of the present invention is 1575MHz, 2650MHz, can be applied to GPS and LTE-A communications, and the antenna uncoupling effect is obvious.Mimo antenna design is simple, compact conformation, easy to process, with low cost.
Description
Technical field
The present invention relates to a kind of mimo antenna of high-isolation according to claim 1, the antenna can be used for GPS
With the LTE-A communications fields.
Background technology
In modern communicationses field, during our designing antennas, main facing challenges are to improve the frequency range of antenna simultaneously, are increased
Isolation between antenna, so that antenna applications are in different application fields, such as GPS, LTE-A.
The use of global positioning system (GPS) is very extensive, such as mobile phone, aircraft, automobile.General civilian GPS
L1, L2 frequency band signals of reception.The frequency of L1 frequency ranges is 1575.42 ± 10MHz, and the frequency of L2 frequency ranges is 1227.60 ± 10MHz.
LTE-A is the evolution version of LET technologies, which employs a series of advanced technologies, including carrier aggregation, uplink/downlink
Multiple antennas enhancing, coordinated multipoint transmission etc., can greatly improve peak data rate, the peaks spectrum efficiency of wireless communication system.
This causes that LTE and lte-a system turn into the main flow of Development of Wireless Communications in the coming years.
Radio MIMO technology is also considered as one of key technology of future communication technologies development.Traditional communication technology is general
SISO (single-input single-output) system is used, due to limitation of the Shannon's theorems in terms of channel capacity, in data throughout
On have very big limitation, and multiple-input and multiple-output MIMO technology is adopted under the premise of band bandwidth and total emission power is not increased
With diversity antenna technology, had a distinct increment on data throughout and transmission range.
Key link is designed for mimo antenna in MIMO technology, is limited by emitter or receiver size and structure,
More antenna element is set in less space, and this has higher requirements to antenna cell design and antenna arrangement.In order that
Antenna is in limited space so that have less correlation between more antenna element, while the maximum for obtaining mimo system is led to
Letter capacity.The decoupling method of mimo antenna is a lot, for example, loading pbg structure, loads gap structure, loads material knot
Structure, increases floor branch etc..The miniaturization of current communication equipment, at present the design bandwidth of two unit mimo antennas of research compared with
Narrow, isolation is relatively low, it is impossible to meet require well.
The content of the invention
Object of the present invention is to provide a kind of small volume, compact conformation, the mimo antenna of high-isolation, the wave filter
Can be used for GPS and LTE-A communications,.
The technical solution adopted in the present invention：
A kind of mimo antenna of high-isolation, it is characterised in that it includes：Medium substrate (104), two aerial radiations
Unit (101), two microstrip feed lines (102), T-shaped counterfoil (104), two open-type resonators (105), earth plates (106)
Composition；Characterized in that, two radiating elements are plane E font metal patches, opening direction is oblique outwardly.
The mimo antenna of described a kind of high-isolation, it is characterised in that two microstrip feed lines are rectangular step shape metal patch
Piece, its one end is connected with radiating element, and one end is feed port.
The mimo antenna of described a kind of high-isolation, it is characterised in that whole antenna is on axis specular.
The mimo antenna of described a kind of high-isolation, it is characterised in that there are two in the T-shaped counterfoil at the antenna back side and open
Shape of the mouth as one speaks resonator.
The invention mimo antenna has following characteristic and advantage relative to existing mimo antenna：
Design is simple, compact conformation, easy to process, with low cost.
Characterized in that, working frequency is 1575MHz, 2650MHz, GPS and LTE-A communications are can be applied to.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention；
Fig. 2 is the positive structure schematic of embodiment of the present invention；
Fig. 3 is the side structure schematic diagram of embodiment of the present invention；
Fig. 4 is the schematic rear view of embodiment of the present invention；
Fig. 5 is the structure schematic diagram of embodiment of the present invention；
Fig. 6 is the open-loop resonator structural representation of embodiment of the present invention；
Specific embodiment
Object of the present invention is to provide a kind of small volume, compact conformation, the mimo antenna of high-isolation, the antenna can
Communicated for GPS and LTE-A,.
Specifically invention is described in more detail below in conjunction with the accompanying drawings：
An example of the present invention is as shown in figure 1, medium substrate (104) is the FR-4 that dielectric constant is 4.4.The medium
The thickness of substrate is 1.54mm.Metal ground plate (106) under medium substrate uses copper product.
As shown in figure 1, a kind of mimo antenna of high-isolation of the invention, two antenna radiation units (101), two it is micro-
Ribbon feeder (102), T-shaped counterfoil (104), using copper product.
A kind of design parameter of the mimo antenna of high-isolation of the invention：
An example of the present invention is as shown in figure 1, medium substrate (104) is the FR-4 that dielectric constant is 4.4, the substrate
Length L=90mm, width W=50mm, thickness is 1.54mm.There is FR4 materials electrical insulation capability to stablize, flatness is good,
Surface is smooth, without pit, thickness deviation standard the characteristics of, its excellent electrical properties, operating temperature is higher, and performance itself is received
Ambient influnence is small, is common used material, is easy to make and industrial production.
As shown in Fig. 2 the length of two described antenna radiation units of specular, wherein high-frequency monopolar is from big to small
L1=22.5mm, L2=15mm, L3=8.5mm are followed successively by, width is equal to be W1=1.5mm.The width of microstrip feed line according to
It is secondary for 2.9mm and 1.5mm.
As shown in Fig. 5 structure schematic diagrams, wherein L8=42.5mm, L9=8mm, L10=39.5mm in T-shaped counterfoil,
L11=7mm, width W3=15mm, by changing the shape of T-shaped counterfoil, can control isolation between antennas.
As shown in Fig. 6 open-type resonator structure schematic diagrames, wherein length L12=15mm, L13=6mm, L14=1mm.
Width W4=9mm, W5=7mm, mimo antenna can be changed by the position for adjusting two specular open-type resonators
Isolation.
Claims (5)
1. a kind of mimo antenna of high-isolation, it is characterised in that it includes：Medium substrate (104), two aerial radiation lists
First (101), two microstrip feed lines (102), T-shaped counterfoil (104), two opening resonators (105), earth plates (106)
Composition；Characterized in that, two radiating elements are plane E font metal patches, opening direction is obliquely outwardly.
2. the mimo antenna of a kind of high-isolation according to claim 1, it is characterised in that two microstrip feed lines are rectangle
Stage shape metal paster, its one end is connected with radiating element, and one end is feed port.
3. the mimo antenna of a kind of high-isolation according to claim 1, it is characterised in that whole antenna is on axis
Specular.
4. a kind of mimo antenna of high-isolation according to claim 1, it is characterised in that the T-shaped counterfoil at the antenna back side
In have specular two opening resonators.
5. the mimo antenna of a kind of high-isolation according to claim 1, it is characterised in that working frequency be 1575MHz,
2650MHz, can be applied to GPS and LTE-A communications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908314.6A CN106876884A (en) | 2015-12-10 | 2015-12-10 | A kind of mimo antenna of high-isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908314.6A CN106876884A (en) | 2015-12-10 | 2015-12-10 | A kind of mimo antenna of high-isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106876884A true CN106876884A (en) | 2017-06-20 |
Family
ID=59236605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908314.6A Pending CN106876884A (en) | 2015-12-10 | 2015-12-10 | A kind of mimo antenna of high-isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106876884A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201845871U (en) * | 2010-10-29 | 2011-05-25 | 华南理工大学 | Two-unit-broadband MIMO (multiple input multiple output) antenna array |
| KR20120061555A (en) * | 2010-12-03 | 2012-06-13 | 한양대학교 산학협력단 | MIMO Antenna Using CRSS Structure |
-
2015
- 2015-12-10 CN CN201510908314.6A patent/CN106876884A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201845871U (en) * | 2010-10-29 | 2011-05-25 | 华南理工大学 | Two-unit-broadband MIMO (multiple input multiple output) antenna array |
| KR20120061555A (en) * | 2010-12-03 | 2012-06-13 | 한양대학교 산학협력단 | MIMO Antenna Using CRSS Structure |
Non-Patent Citations (2)
| Title |
|---|
| BABU M SWAGATH, A RAJESH ; R NAKKEERAN, G IDAYACHANDRAN: ""Design of DGS based dual-element multiband (DEMB) MIMO antenna for GPS and LTE-A applications"", 《2015 INTERNATIONAL CONFERENCE ON CIRCUITS, POWER AND COMPUTING TECHNOLOGIES [ICCPCT-2015]》 * |
| CHENG YANG, YUAN YAO, JUNSHENG YU, XIAODONG CHEN: ""Novel Compact Multiband MIMO Antenna for Mobile Terminal"", 《INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Park et al. | The compact quad-band mobile handset antenna for the LTE700 MIMO application | |
| CN102280696A (en) | Half-wave transmission decoupling small-space microstrip array antenna | |
| CN112563730A (en) | High-isolation ultra-wideband MIMO antenna suitable for 5G full-band communication | |
| CN201812933U (en) | Integrated filter antenna | |
| CN103825108A (en) | Mobile phone terminal MIMO antenna structure applied to multiple modes and multiple bands | |
| CN104681955A (en) | UWB (ultra wide band) antenna with dual resistance band function | |
| CN104157987A (en) | Miniature MIMO (Multiple Input Multiple Output) ultra-wideband antenna | |
| CN104681965A (en) | Dual-stopband UWB (Ultra-wide Bandwidth) antenna with steep stopbands | |
| CN106953168A (en) | A kind of plane millimeter wave mimo antenna | |
| CN110829023B (en) | Antenna module and terminal | |
| Zhang et al. | Simple triple-mode dual-polarized dipole antenna with small frequency separation ratio | |
| CN103066395A (en) | Low radar cross section (RCS) microstrip antenna based on complete absorber | |
| Bai et al. | A novel multiband MIMO antenna for TD-LTE and WLAN applications | |
| CN104157973A (en) | Double-frequency printed monopole antenna array with low coupling | |
| CN103560325A (en) | Broadband Quari-Yagi antenna applied to multi-band frequency wireless communication system | |
| CN111293434A (en) | 5G dual-frequency binary MIMO antenna | |
| CN104702308A (en) | Micro structure MiMo radio frequency front end assembly | |
| CN105846069A (en) | Multi-band MIMO cell phone antenna with simple decoupling structure | |
| CN107978854A (en) | A kind of duplexing filter antenna based on center short circuit T font resonator | |
| CN106876905A (en) | A kind of double frequency mimo antenna of high-isolation | |
| CN209658395U (en) | A kind of ten frequency range antenna for mobile phone of miniature ultra wide band | |
| CN104681956A (en) | UWB (Ultra-wideband) band-notch antenna with steep stop band | |
| Dong et al. | High isolation design of a two-element planar UWB-MIMO monopole antenna | |
| CN211455951U (en) | 5G dual-frequency binary MIMO antenna | |
| CN104681966A (en) | Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
|
| WD01 | Invention patent application deemed withdrawn after publication |