CN106602234B - The dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand - Google Patents
The dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand Download PDFInfo
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- CN106602234B CN106602234B CN201611127854.1A CN201611127854A CN106602234B CN 106602234 B CN106602234 B CN 106602234B CN 201611127854 A CN201611127854 A CN 201611127854A CN 106602234 B CN106602234 B CN 106602234B
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- medium substrate
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- coupling control
- left hand
- fed
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
The dual-port MIMO coplanar waveguide antenna that coupling control is fed with left hand, is related to MIMO, dual-band antenna.Equipped with medium substrate, the medium substrate uses Rectangular Enclosure with Participating Media substrate, and coating metal layer on medium substrate removes one on metal layer by the circle in the center of circle of medium substrate center, and remainder is as earth plate；The one rectangular metal patch of center symmetric setting on rectangle medium substrate in circle, the right of rectangular metal patch and lower section place 2 by stretched out in the middle part of edge triangles Lai the oscillator that is disposed vertically of " T " word, both sides and floor are separated with gap.Two wide seams are opened on floor along two diagonal lines of medium substrate, and left, the upper both sides floor of not oscillator is removed；2 square shaped CSRR left hand of the asymmetrical load feed coupling control structure on earth plate.It can be used for 3.5GHz, 5.5GHz frequency range of WiMAX/WLAN.
Description
Technical field
The present invention relates to MIMO, dual-band antenna, more particularly, to a kind of dual-port MIMO for feeding coupling control with left hand
Coplanar waveguide antenna.
Background technique
With popularizing for 3-G (Generation Three mobile communication system), researcher has begun the movement for eye having been turned to a new generation
Communication system, and mostly important one of technology therein is exactly multiple-input and multiple-output (Multi-input and Multi-
Output, MIMO) technology.It provides bigger data with cheaper cost and passes under the premise of not needing extra bandwidth
Defeated rate, the availability of frequency spectrum and channel capacity.
Due to the fast development of wireless communication system, especially WLAN WLAN and worldwide interoperability for microwave accesses network
The application of WiMAX, as the antenna of wireless receiving and launch terminal, in order to adapt to the miniaturization and multifrequency integration of communication system
Working environment, have miniaturization, multiband demand for development.
Left-handed material is the artificial cycle structure being not present in nature, its dielectric constant and magnetic conductivity is all negative, because
This is also referred to as " left-handed metamaterial ".The structure of left-handed material is generally divided into two kinds: metal resonance structure and composite right/left-handed transmission line
(CRLH TLs).In the 1990s, the talents such as Perdry and Smith propose most representative split-ring resonator
(SRR) and metal bar (Rod) structure (A.Lai, C.Caloz, T.Itoh.Composite right/left-handed
Transmission line metamaterials [J] .IEEE Microwave Magazine, 2004,5 (3): 34-50).
Later, Francisco Falcone proposed the complementary structure CSRR (Francisco of SRR according to Babinet principle
Falcone, TxemaLopetegi, Juan D.Baena, et al.Effective negative- ε stopband
microstrip lines based on Complementary Split Ring Resonators[J]
.IEEEMicrowave and Wireless Components Lett.2004, vol.14 (6), pp.280-282.), and will
It, which is applied in microstrip line construction, produces stopband characteristic.
Summary of the invention
The purpose of the present invention is to provide a kind of dual-ports that coupling control is fed with left hand applied to WLAN/WiMAX
MIMO coplanar waveguide antenna.
The present invention is equipped with medium substrate, and the medium substrate uses Rectangular Enclosure with Participating Media substrate, coating metal layer on medium substrate,
One on metal layer is removed by the circle in the center of circle of medium substrate center, remainder is as earth plate；Rectangle is situated between in circle
One rectangular metal patch of center symmetric setting on matter substrate, the right of rectangular metal patch and lower section place 2 by edge triangle
The oscillator that " T " word come is disposed vertically is stretched out in the middle part of shape, both sides and floor are separated with gap.Along two diagonal lines of medium substrate
Two wide seams are opened on floor, and left, the upper both sides floor of not oscillator is removed；2 square shaped of asymmetrical load on earth plate
CSRR left hand feed coupling control structure.
Square medium substrate can be used in the medium substrate, and the side length of square medium substrate can be 35~45mm, thick
Degree can be 0.7~0.9mm, and relative dielectric constant can be 2~6.
The rectangular metal patch can be used square-shaped metal patch, the side length of square-shaped metal patch can for 11~
13mm。
Described 2 by extend across in the middle part of edge triangles Lai the oscillator that is disposed vertically of " T " word, vertical component length can be
11.7~13.7mm, wide is 0.9~1.1mm, and horizontal component length can be 9~11mm, and wide is 0.9~1.1mm.
The radius for the circle that the medium substrate metal layer center is removed is 11~13mm, earth plate bottom edge endpoint and medium
Substrate end-point distances are 3.5~4.5mm, and the slit width for separating earth plate and T shape oscillator is 0.45~0.55mm.
The 2 square shaped CSRR left hands feed coupling control structure of asymmetrical load on the earth plate, outer annular edge a length of 5.5~
6.5mm is 0.8~1mm with inner ring distance, and slit width is 0.5~0.7mm, and section width is 0.4~0.6mm；With earth plate bottom edge
Distance is 1.5~1.7mm, is 0.8~1mm with T shape oscillator distance.
The present invention has following prominent characteristics: improving transmission rate, the availability of frequency spectrum and letter using dual-port MIMO technology
Road capacity, by co-planar waveguide couple feed, the 2 square shaped CSRR left hands feed coupling control structure of load can be by sharp
The phase controlling encouraged adjusts its size so as to adjust trap frequency and forms double frequency, the S11 in 3.5GHz frequency range, 5.5GHz frequency range
Parameter is below -10dB.The present invention can be used for 3.5GHz, 5.5GHz frequency range of WiMAX/WLAN.
Detailed description of the invention
Fig. 1 is the overall structure figure of the embodiment of the present invention.
Fig. 2 is the overall structure dimensional drawing of the embodiment of the present invention.
Fig. 3 is the simulation value of antenna S11 and S22.
Fig. 4 is the simulation value of antenna S12.
Fig. 5 is the E-plane and H-plane pattern of antenna 3.5GHz frequency range.
Fig. 6 is the E-plane and H-plane pattern of antenna 5.5GHz frequency range.
Specific embodiment
Below with reference to attached drawing, invention is further described in detail.
Referring to Fig. 1, the present invention is equipped with medium substrate 1, square metal patch 2, T shape oscillator 3, earth plate 4, rectangular CSRR control
Structure 5 processed；2 center of square metal patch is overlapped with 1 center of medium substrate, and two T shape oscillators 3 are respectively about in medium substrate 1
Crux of heart line is symmetrical.2 square shaped CSRR control structures 5 are symmetrical respectively about two T shape oscillators 3.
Referring to fig. 2, the medium substrate 1 is square structure, and side length L is 40.0 ± 0.1mm, with a thickness of 0.8 ±
0.1mm, relative dielectric constant 4.4.The 2 side length a of square metal patch is 12.0 ± 0.1mm.The two T shape oscillator 3 hangs down
The straight long L1 in part is 12.7 ± 0.1mm, and wide W1 is 1.0 ± 0.1mm, and the long L2 of horizontal component is 10.0 ± 0.1mm, and wide W2 is 1.0
±0.1mm.The radius for the circle that the metal layer center is removed is 12.0 ± 0.1mm, 4 bottom edge endpoint of earth plate and medium substrate
1 end-point distances d is 4.0 ± 0.1mm, and the slit width W0 for separating earth plate 4 and T shape oscillator 3 is 0.5 ± 0.1mm.It is described rectangular
5 outer ring side length L3 of CSRR control structure be 6.0 ± 0.1mm, with inner ring distance s be 0.9 ± 0.1mm, slit width t be 0.6 ±
0.1mm, the wide g of section are 0.5 ± 0.1mm；It is 1.6 ± 0.1mm with earth plate bottom edge distance dx, is 0.9 with T shape oscillator distance dy
±0.1mm。
Referring to Fig. 3, the simulation value figure of antenna S11, S22 frequency curve.By simulation curve as it can be seen that antenna ends mouth-
10dB bandwidth is essentially identical, specially 3.35~3.75GHz, 5.0~5.90GHz.
Referring to fig. 4, the simulation value figure of antenna S12 frequency curve.By S12 simulation curve as it can be seen that the isolation of antenna ends mouth
Degree, all close to -15dB, substantially conforms to require in -10dB bandwidth.
Referring to Fig. 5,6, the respectively E-plane and H-plane pattern of 3.5GHz, 5.5GHz.
Claims (9)
1. feeding the dual-port MIMO coplanar waveguide antenna of coupling control with left hand, it is characterised in that it is equipped with medium substrate, it is described
Medium substrate uses Rectangular Enclosure with Participating Media substrate, coating metal layer on medium substrate, by one on metal layer with medium substrate center
For the circle removal in the center of circle, remainder is as earth plate；One rectangular metal of center symmetric setting on rectangle medium substrate in circle
Patch, the right of rectangular metal patch and is respectively arranged below " T " word oscillator, and two " T " word oscillators are respectively about in medium substrate
Crux of heart line is symmetrical, " T " word oscillator horizontal component and adjacent rectangular patch sides aligned parallel, and vertical component both sides and floor are stitched
Gap separates；Two wide seams are opened on floor along two diagonal lines of medium substrate, and left, the upper both sides floor of not oscillator is gone
It removes；One square shaped CSRR left hand of the asymmetrical load feed coupling control on the earth plate on each " T " word oscillator vertical component both sides
Structure.
2. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
Medium substrate is stated using square medium substrate.
3. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as claimed in claim 2, it is characterised in that institute
The side length for stating square medium substrate is 35~45mm, with a thickness of 0.7~0.9mm.
4. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
The relative dielectric constant for stating medium substrate is 2~6.
5. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
Rectangular metal patch is stated using square-shaped metal patch.
6. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as claimed in claim 5, it is characterised in that just
The side length of square metal patch is 11~13mm.
7. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
State two " T " word a length of 11.7~13.7mm of oscillator vertical component, width is 0.9~1.1mm, horizontal component a length of 9~11mm, wide
For 0.9~1.1mm.
8. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
The radius for giving an account of the circle that matter substrate metal layer center is removed be 11~13mm, earth plate bottom edge endpoint and medium substrate endpoint away from
It is 0.45~0.55mm from the slit width for for 3.5~4.5mm, separating earth plate and T shape oscillator.
9. the dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand as described in claim 1, it is characterised in that institute
The 2 square shaped CSRR left hands feed coupling control structure of asymmetrical load on earth plate is stated, a length of 5.5~6.5mm of outer annular edge is and interior
Ring distance is 0.8~1mm, and slit width is 0.5~0.7mm, and section width is 0.4~0.6mm；With earth plate bottom edge distance 1.5~
1.7mm is 0.8~1mm with T shape oscillator distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611127854.1A CN106602234B (en) | 2016-12-09 | 2016-12-09 | The dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611127854.1A CN106602234B (en) | 2016-12-09 | 2016-12-09 | The dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand |
Publications (2)
| Publication Number | Publication Date |
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| CN106602234A CN106602234A (en) | 2017-04-26 |
| CN106602234B true CN106602234B (en) | 2019-08-13 |
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| CN201611127854.1A Active CN106602234B (en) | 2016-12-09 | 2016-12-09 | The dual-port MIMO coplanar waveguide antenna of coupling control is fed with left hand |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713447A (en) * | 2018-02-09 | 2019-05-03 | 北京邮电大学 | A kind of dual polarized antenna based on co-planar waveguide terminal short circuit couple feed |
| CN110829013B (en) * | 2019-11-19 | 2022-02-08 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680177A (en) * | 2016-01-22 | 2016-06-15 | 西北工业大学 | T-shaped structure feeding double-frequency and dual-unit planar microstrip MIMO antenna applied to WLAN |
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2016
- 2016-12-09 CN CN201611127854.1A patent/CN106602234B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680177A (en) * | 2016-01-22 | 2016-06-15 | 西北工业大学 | T-shaped structure feeding double-frequency and dual-unit planar microstrip MIMO antenna applied to WLAN |
Non-Patent Citations (1)
| Title |
|---|
| 《Triple band notch UWB Antenna array with EBG Structure》;Nikitha Premiere E.K;《IEEE WiSPNET 2016》;20160325;全文 |
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| CN106602234A (en) | 2017-04-26 |
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