CN106602234A - Dual-port MIMO coplanar waveguide antenna with left hand feed coupling control - Google Patents
Dual-port MIMO coplanar waveguide antenna with left hand feed coupling control Download PDFInfo
- Publication number
- CN106602234A CN106602234A CN201611127854.1A CN201611127854A CN106602234A CN 106602234 A CN106602234 A CN 106602234A CN 201611127854 A CN201611127854 A CN 201611127854A CN 106602234 A CN106602234 A CN 106602234A
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- Prior art keywords
- medium substrate
- left hand
- dual
- coplanar waveguide
- feed
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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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
A dual-port MIMO coplanar waveguide antenna with left hand feed coupling control relates to a MIMO and double-frequency antenna. A medium substrate is arranged. The medium substrate adopts a rectangular medium substrate. The medium substrate is coated with a metal layer. A circle which takes a medium substrate center as a center of circle on the metal layer is removed and a residual portion is taken as a grounding plate. A rectangular medium substrate in a circle is centrally and symmetrically provided with a rectangular metal paster. Two oscillators which are vertically arranged in a ''T'' character shape and are stretched from an edge triangle central section are placed at a right portion and a lower portion of the rectangular metal paster. Two edges and a floor are separated by using a slit. Two wide seams are arranged on the floor along two diagonal lines of the medium substrate, and the floors of left and upper sides without oscillators are removed. A grounding plate is symmetrically loaded with two pairs of square CSRR left hand feed coupling control structures. The antenna can be used for 3.5GHz and 5.5GHz frequency ranges of WiMAX/WLAN.
Description
Technical field
The present invention relates to MIMO, dual-band antenna, more particularly, to a kind of dual-port MIMO that coupling control is fed with left hand
Coplanar waveguide antenna.
Background technology
With the popularization of 3-G (Generation Three mobile communication system), research worker has begun to eye turned to the movement of a new generation
Communication system, and one of of paramount importance technology therein is exactly multiple-input and multiple-output (Multi-input and Multi-
Output, MIMO) technology.It provides bigger data and passes on the premise of extra bandwidth is not needed with cheaper cost
Defeated speed, the availability of frequency spectrum and channel capacity.
Due to the fast development of wireless communication system, particularly WLAN WLAN and worldwide interoperability for microwave accesses network
The application of WiMAX, as wireless receiving and the antenna of launch terminal, in order to adapt to the miniaturization and multifrequency integration of communication system
Working environment, the demand for development with miniaturization, multiband.
LHM is non-existent artificial cycle structure in nature, its dielectric constant and pcrmeability be all it is negative, because
This is also referred to as " left-handed metamaterial ".The structure of LHM is generally divided into two kinds：Metal resonance structure and composite right/left-handed transmission line
(CRLH TLs).The talents such as the nineties in 20th century, Perdry and Smith propose most representational split-ring resonator
And metal bar (Rod) structure (A.Lai, C.Caloz, T.Itoh.Composite right/left-handed (SRR)
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 principles
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 is applied in microstrip line construction and generates stopband characteristic.
The content of the invention
It is an object of the invention to provide a kind of dual-port that coupling control is fed with left hand for being applied to WLAN/WiMAX
MIMO coplanar waveguide antennas.
The present invention is provided with medium substrate, and the medium substrate adopts Rectangular Enclosure with Participating Media substrate, coating metal layer on medium substrate,
Circle removal by metal level with medium substrate center as the center of circle, remainder is used as earth plate；Rectangle is situated between in circle
Centrosymmetry arranges a rectangular metal paster on matter substrate, and the right of rectangular metal paster and lower section place 2 by edge triangle
Shape middle part stretches out the oscillator that " T " word for coming is disposed vertically, and both sides are separated with floor with gap.Along two diagonal of medium substrate
Two wide seams are opened on floor, and left, the upper both sides floor without oscillator is removed；The square shaped of asymmetrical load 2 on earth plate
CSRR left hands feed coupling control structure.
The medium substrate can be using square medium substrate, and the length of side 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 paster can adopt square-shaped metal paster, the length of side of square-shaped metal paster can for 11～
13mm。
Described 2 are extended across the oscillator that " T " word for coming is disposed vertically by edge triangles middle part, and 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 of the circle that the medium substrate metal level central authorities are removed is 11～13mm, earth plate base end points and medium
Substrate end-point distances are 3.5～4.5mm, separate a width of 0.45～0.55mm in gap of earth plate and T-shaped oscillator.
The 2 square shaped CSRR left hands feed coupling control structure of asymmetrical load on the earth plate, outer annular edge is a length of 5.5～
6.5mm, is 0.8～1mm, a width of 0.5～0.7mm in gap, a width of 0.4～0.6mm of section with internal ring distance；With earth plate base
Distance is 1.5～1.7mm, is 0.8～1mm with T-shaped oscillator distance.
The present invention has following prominent characteristics：Transfer rate, the availability of frequency spectrum and letter are improved 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 loading can be by swashing
The phase controlling encouraged, adjusts its size so as to adjust trap frequency and forms double frequency, the S11 in 3.5GHz frequency ranges, 5.5GHz frequency ranges
Parameter is below -10dB.The present invention can be used for 3.5GHz, 5.5GHz frequency range of WiMAX/WLAN.
Description of the drawings
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.
E faces and H face directional diagram of the Fig. 5 for antenna 3.5GHz frequency ranges.
E faces and H face directional diagram of the Fig. 6 for antenna 5.5GHz frequency ranges.
Specific embodiment
The present invention is described in further detail below with reference to accompanying drawing.
Referring to Fig. 1, the present invention is provided with medium substrate 1, square metal paster 2, T-shaped oscillator 3, earth plate 4, square CSRR controls
Structure processed 5；The center of square metal paster 2 and the center superposition of medium substrate 1, two T-shaped 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-shaped oscillators 3.
Referring to Fig. 2, the medium substrate 1 be square structure, length of side L be 40.0 ± 0.1mm, thickness be 0.8 ±
0.1mm, relative dielectric constant is 4.4.Length of side a of square metal paster 2 is 12.0 ± 0.1mm.The two T-shaped 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 of the circle that the metal level central authorities are removed is 12.0 ± 0.1mm, the base end points of earth plate 4 and medium substrate
1 end-point distances d are 4.0 ± 0.1mm, and it is 0.5 ± 0.1mm to separate earth plate 4 with the slit width W0 of T-shaped oscillator 3.It is described square
Outer shroud length of side L3 of CSRR control structures 5 be 6.0 ± 0.1mm, with internal ring apart from s be 0.9 ± 0.1mm, slit width t be 0.6 ±
0.1mm, the wide g of section are 0.5 ± 0.1mm；With earth plate base apart from dx be 1.6 ± 0.1mm, with T-shaped oscillator apart from dy be 0.9
±0.1mm。
Referring to Fig. 3, the simulation value figure of antenna S11, S22 frequency curve.From simulation curve, 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 curves.From S12 simulation curves, the isolation of antenna ends mouth
Degree is all close to -15dB in -10dB bandwidth, substantially conforms to require.
Referring to Fig. 5,6, respectively the E faces of 3.5GHz, 5.5GHz and H faces directional diagram.
Claims (9)
1. the dual-port MIMO coplanar waveguide antennas of coupling control are fed with left hand, it is characterised in that be provided with medium substrate, it is described
Medium substrate adopts Rectangular Enclosure with Participating Media substrate, coating metal layer on medium substrate, by metal level with medium substrate center
Circle for the center of circle is removed, and remainder is used as earth plate；Centrosymmetry arranges a rectangular metal on rectangle medium substrate in circle
Paster, the right of rectangular metal paster and lower section are placed 2 and are disposed vertically by next " T " word is stretched out in the middle part of edge triangles
Oscillator, both sides are separated with floor with gap；Two wide seams are opened on floor along two diagonal of medium substrate, and will be without oscillator
Left, upper both sides floor remove；The square shaped CSRR left hand of the asymmetrical load 2 feed coupling control structure on earth plate.
2. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
Medium substrate is stated using square medium substrate.
3. feed with left hand as claimed in claim 2 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
The length of side for stating square medium substrate is 35～45mm, and thickness is 0.7～0.9mm.
4. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
The relative dielectric constant for stating medium substrate is 2～6.
5. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
Rectangular metal paster is stated using square-shaped metal paster.
6. the dual-port MIMO coplanar waveguide antennas of coupling control are fed with left hand as described in right wants 5, it is characterised in that square
The length of side of shape metal patch is 11～13mm.
7. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
State 2 and extended across the oscillators that are disposed vertically of " T " words for coming by edge triangles middle part, a length of 11.7～13.7mm of vertical component,
A width of 0.9～1.1mm, a length of 9～11mm of horizontal component, a width of 0.9～1.1mm.
8. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, it is characterised in that institute
It is 11～13mm to give an account of the radius of circle that matter substrate metal layer central authorities are removed, earth plate base end points and medium substrate end points away from
From for 3.5～4.5mm, separate a width of 0.45～0.55mm in gap of earth plate and T-shaped oscillator.
9. feed with left hand as claimed in claim 1 and couple the dual-port MIMO coplanar waveguide antennas for controlling, 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, a width of 0.5～0.7mm in gap, a width of 0.4～0.6mm of section；It is 1.5 with earth plate base distance
～1.7mm, is 0.8～1mm with T-shaped 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106602234A true CN106602234A (en) | 2017-04-26 |
| CN106602234B CN106602234B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Cited By (3)
| 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 |
| CN110829013A (en) * | 2019-11-19 | 2020-02-21 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
| CN113224528A (en) * | 2021-04-30 | 2021-08-06 | 黄山学院 | CPW fed 5G communication broadband MIMO terminal antenna |
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 |
-
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 |
|---|
| NIKITHA PREMIERE E.K: "《Triple band notch UWB Antenna array with EBG Structure》", 《IEEE WISPNET 2016》 * |
Cited By (4)
| 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 |
| CN110829013A (en) * | 2019-11-19 | 2020-02-21 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
| CN113224528A (en) * | 2021-04-30 | 2021-08-06 | 黄山学院 | CPW fed 5G communication broadband MIMO terminal antenna |
| CN113224528B (en) * | 2021-04-30 | 2024-05-24 | 黄山学院 | CPW (compact phase-locked loop) feed 5G (5G) communication broadband MIMO (multiple input multiple output) terminal antenna |
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| Publication number | Publication date |
|---|---|
| CN106602234B (en) | 2019-08-13 |
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