CN109449588A - A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load - Google Patents
A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load Download PDFInfo
- Publication number
- CN109449588A CN109449588A CN201811445642.7A CN201811445642A CN109449588A CN 109449588 A CN109449588 A CN 109449588A CN 201811445642 A CN201811445642 A CN 201811445642A CN 109449588 A CN109449588 A CN 109449588A
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- China
- Prior art keywords
- graphene
- strip paster
- paster antenna
- frequency based
- terahertz frequency
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- 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.)
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Classifications
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
- H01Q1/368—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor using carbon or carbon composite
-
- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
Abstract
The present invention provides a kind of adjustable micro-strip paster antennas of Terahertz frequency based on graphene load, comprising: metal radiation body, graphene patch, medium substrate, coplanar waveguide ground and DC bias circuit；Metal radiation body and graphene patch are placed on medium substrate；Coplanar waveguide ground includes signal wire and ground wire, and port is concentrated in setting between signal wire and ground wire；DC bias circuit includes high resistant line, fan-shaped surface, two sheet metals and polysilicon electrode, high resistant line is the thin microstrip line that quarter-wave has high characteristic impedance, fan-shaped surface is quarter-wave open circuit microstrip line, sheet metal one is placed on medium substrate and is connected with graphene patch, on the polysilicon under medium substrate, polysilicon electrode is inserted into the dielectric substrate another etching.The invention patent technical work frequency range can be realized antenna resonant frequency linear adjustable lower than within the scope of original resonance frequency in Terahertz frequency range.
Description
Technical field
The present invention relates to antenna technical fields, and in particular, to a kind of Terahertz frequency based on graphene load is adjustable
Micro-strip paster antenna.
Background technique
Grapheme material possesses many excellent characteristics in electromagnetism, heat, terms of mechanics.Electrical characteristics: skin effect is small when high frequency,
Current carrying capacity is strong, when it is used to constitute miniaturization passive device, can provide higher quality compared to traditional electromagnetic material
Factor and working efficiency and lower loss and stronger anti-interference ability；Thermal characteristics: thermal conductivity is high, rapid heat dissipation, is suitble to height
Power density scene；Mechanical characteristic: density is low, and Young's modulus of elasticity is big, the nano electromechanical systems of extremely suitable high switch speed.Stone
Black alkene is exactly the good characteristic for relying on its numerous, has been widely used in such as photoelectron, bioengineering, energy stores neck
Domain.In microwave technical field, graphene can be used as one kind because its surface conductivity can be tuned by extra electric field and magnetic field
Outstanding tunable material is applied in antenna and other passive devices.With the continuous raising of microwave device working frequency,
Particularly to Terahertz frequency range, the skin effect of traditional metal materials be will be apparent from, and resistivity also will increase, this also can
Cause to include the serious system problems such as scale effect, reliability reduction, thermal stability decline.And graphene is all because itself
More excellent characteristics can be very good to avoid the above problem, this makes graphene in Terahertz tunable antenna and other passive devices
Research have important development prospect.
Summary of the invention
For the adjustable feature of graphene conductivity, the present invention provides a kind of Terahertz frequencies based on graphene load
Adjustable micro-strip paster antenna.
A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load provided according to the present invention, comprising:
Metal radiation body, graphene patch, medium substrate, coplanar waveguide ground and DC bias circuit；
The metal radiation body is micro-strip paster antenna of the work in 300GHz；
The graphene patch is the square sheet of 40um wide；
The medium substrate is the silica of thickness 20um；
The coplanar waveguide ground includes signal wire and ground wire, and port is concentrated in setting between the signal wire and ground wire；
The DC bias circuit includes high resistant line, fan-shaped surface, two sheet metals and polysilicon electrode；
Preferably, the metal radiation body partially overlaps with the graphene patch, connects antenna well with graphene
Touching.
Preferably, the graphene patch partially overlaps with high resistant line one end, inclined to guarantee to apply graphene
Set voltage.
Preferably, the coplanar waveguide ground by metal aperture connection upper layer and lower layer, applies high frequency probe after convenient
Test.
Preferably, the high resistant line is the microstrip line that quarter-wave has high characteristic impedance, is believed with reaching high frequency
Number open circuit.
Preferably, the fan-shaped surface is quarter-wave open circuit microstrip line, to reach to high-frequency signal short circuit.
Preferably, described two sheet metals are located at antenna top layer, and one is connected to high resistant line, and one from the medium substrate
Top layer etches on the polysilicon electrode, in order to apply bias voltage.
Preferably, the polysilicon is inserted into away under the medium substrate top layer at 10nm, in order in the polycrystalline
Bias field is formed between silicon electrode and graphene.
Compared with prior art, the present invention have it is following the utility model has the advantages that
For the present invention while applying its conductivity of DC voltage control to graphene, devising makes high-frequency signal and direct current
The biasing circuit of isolation, the resonance frequency that can be realized micro-strip paster antenna are linear in the range of lower than its original resonance frequency
It is adjustable.The present invention has fully considered the processing factors of graphene antenna, designed antenna can on the basis of existing directly into
Row processing test.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of adjustable micro-strip paster antenna structural schematic diagram of Terahertz frequency based on graphene load of the present invention；
Fig. 2 is a kind of dimensional parameters of the adjustable micro-strip paster antenna of Terahertz frequency based on graphene load of the present invention
Figure；
Fig. 3 is that a kind of reflection characteristic of the adjustable micro-strip paster antenna of Terahertz frequency based on graphene load of the present invention is bent
Line chart.
It is shown in figure:
Metal radiation body 1
Graphene patch 2
DC bias circuit 3
Medium substrate 4
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
As depicted in figs. 1 and 2, a kind of adjustable microband paste of Terahertz frequency based on graphene load provided by the invention
Antenna, and the design parameter size of this implementation is given, so that those skilled in the art is with reference to understanding.
Following table is specific parameter size in the present embodiment；
Metal radiation body is micro-strip paster antenna of the work in 300GHz, using the feeding classification of side fluting and 50 ohm
Microstrip line realizes matching.In order to meet the needs of later high frequency probe test and realize one-way radiation, antenna is coplanar using being grounded
Waveguide feed, and by upper layer and lower layer be connected by row's metal aperture, such as Fig. 1 left-hand component.
Graphene patch is the square sheet that width is 40um, a spoke to guarantee well to contact with antenna, with antenna
It penetrates side to partially overlap, while to guarantee to apply bias voltage to graphene, making also have portion between graphene and high resistant line
Divide and is overlapped.
DC bias circuit includes high resistant line, fan-shaped surface, two sheet metals and polycrystalline silicon medium.High resistant line is that width is 2um
Microstrip line, length be designed as quarter-wave, when connecting with quarter-wave sector open-circuit microstrip line, it can be achieved that
Input terminal opens a way to high-frequency signal, this being capable of influence of the DC-offset correction circuit to antenna feed impedance.Quarter-wave
The purpose that microstrip line uses fan-shaped surface of opening a way is to extend the bandwidth of rejection to high-frequency signal；One and height in two sheet metals
Resistance line, which connects, to be placed on medium substrate, another is etched under medium substrate on the polysilicon at 10nm, the thickness of polysilicon
Degree is 20nm.Then, when two sheet metals are coupled on the positive and negative anodes of applied voltage, can graphene and polysilicon it
Between form bias field, so as to adjust the conductivity of graphene, realize the resonant-frequency adjustable of antenna.
Medium substrate uses the earth silicon material of surface roughness very little, dielectric constant 4, and loss angle tangent is
0.0001, with a thickness of 20um.
The present embodiment carries out simulation calculation using electromagnetic simulation software HFSS15, simulates graphite using impedance boundary condition
Alkene, and variable is set by the chemical potential of graphene to emulate bias voltage to the regulating and controlling effect of graphene.It is to work as stone shown in Fig. 3
When the chemical potential of black alkene changes from 0 to 1, the coverage diagram of antenna, it can be seen that antenna structure proposed by the present invention is fine
Realize its resonance frequency linearly adjustable characteristic.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load, which is characterized in that including metal radiation
Body, graphene patch, medium substrate, coplanar waveguide ground and DC bias circuit；Wherein:
The metal radiation body and the graphene patch are placed on the medium substrate；
The coplanar waveguide ground includes signal wire and ground wire, and port is concentrated in setting between the signal wire and ground wire；
The DC bias circuit includes high resistant line, fan-shaped surface, two sheet metals and polysilicon electrode, the polysilicon electrode
It is inserted in the medium substrate.
2. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the metal radiation body is micro-strip paster antenna, and micro-strip paster antenna working frequency is 300GHz.
3. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the graphene patch partially overlaps with the metal radiation body.
4. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the ground wire of the coplanar waveguide ground includes upper layer and lower layer, is connected by metal aperture.
5. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the high resistant line is quarter-wave and the microstrip line with high characteristic impedance.
6. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the fan-shaped surface is quarter-wave open circuit microstrip line.
7. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 1, special
Sign is that the sheet metal is all located at antenna top layer.
8. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 5, special
Sign is that high resistant line one end partially overlaps with the graphene patch.
9. a kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load according to claim 7, special
Sign is that one of them of two sheet metals is connected with the high resistant line, another etching is on the polysilicon electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445642.7A CN109449588A (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445642.7A CN109449588A (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load |
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| Publication Number | Publication Date |
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| CN109449588A true CN109449588A (en) | 2019-03-08 |
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| CN201811445642.7A Pending CN109449588A (en) | 2018-11-29 | 2018-11-29 | A kind of adjustable micro-strip paster antenna of Terahertz frequency based on graphene load |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913173A (en) * | 2020-08-03 | 2020-11-10 | 鹤岗市振金石墨烯新材料研究院 | 8mm wave band parameter adjustable terahertz radiation source |
| CN112467341A (en) * | 2020-11-10 | 2021-03-09 | 浙江中烟工业有限责任公司 | Tunable frequency vehicle antenna based on graphene |
| CN112490644A (en) * | 2020-11-26 | 2021-03-12 | 长江师范学院 | Optical carrier microwave antenna based on graphene |
| CN112768910A (en) * | 2020-12-29 | 2021-05-07 | 杭州电子科技大学 | Reconfigurable terahertz antenna based on graphene-metal structure and frequency modulation method |
| CN112768879A (en) * | 2019-11-06 | 2021-05-07 | 北京石墨烯研究院 | Microstrip antenna |
| CN113745815A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Cooperative combined antenna working in terahertz wave band |
| CN116231314A (en) * | 2023-04-27 | 2023-06-06 | 北京智芯微电子科技有限公司 | Electromagnetic environment measuring antenna combined with two-dimensional material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768879A (en) * | 2019-11-06 | 2021-05-07 | 北京石墨烯研究院 | Microstrip antenna |
| CN111913173A (en) * | 2020-08-03 | 2020-11-10 | 鹤岗市振金石墨烯新材料研究院 | 8mm wave band parameter adjustable terahertz radiation source |
| CN111913173B (en) * | 2020-08-03 | 2023-07-28 | 鹤岗市振金石墨烯新材料研究院 | Terahertz radiation source with adjustable 8mm wave band parameters |
| CN112467341A (en) * | 2020-11-10 | 2021-03-09 | 浙江中烟工业有限责任公司 | Tunable frequency vehicle antenna based on graphene |
| CN112467341B (en) * | 2020-11-10 | 2022-10-18 | 浙江中烟工业有限责任公司 | Tunable frequency vehicle antenna based on graphene |
| CN112490644A (en) * | 2020-11-26 | 2021-03-12 | 长江师范学院 | Optical carrier microwave antenna based on graphene |
| CN112490644B (en) * | 2020-11-26 | 2022-06-03 | 长江师范学院 | Optical carrier microwave antenna based on graphene |
| CN112768910A (en) * | 2020-12-29 | 2021-05-07 | 杭州电子科技大学 | Reconfigurable terahertz antenna based on graphene-metal structure and frequency modulation method |
| CN112768910B (en) * | 2020-12-29 | 2023-01-10 | 杭州电子科技大学 | Reconfigurable terahertz antenna based on graphene-metal structure and frequency modulation method |
| CN113745815A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Cooperative combined antenna working in terahertz wave band |
| CN116231314A (en) * | 2023-04-27 | 2023-06-06 | 北京智芯微电子科技有限公司 | Electromagnetic environment measuring antenna combined with two-dimensional material |
| CN116231314B (en) * | 2023-04-27 | 2023-08-15 | 北京智芯微电子科技有限公司 | Electromagnetic environment measuring antenna combined with two-dimensional material |
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Application publication date: 20190308 |
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