CN108429010A - A kind of double end-on-fire antenna of ultra wide band based on the super surface of modulation - Google Patents
A kind of double end-on-fire antenna of ultra wide band based on the super surface of modulation Download PDFInfo
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- CN108429010A CN108429010A CN201810313073.4A CN201810313073A CN108429010A CN 108429010 A CN108429010 A CN 108429010A CN 201810313073 A CN201810313073 A CN 201810313073A CN 108429010 A CN108429010 A CN 108429010A
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- patch
- medium substrate
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- wide band
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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
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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
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Abstract
The present invention relates to the invention discloses a kind of double end-on-fire antenna of the ultra wide band based on the super surface of modulation, belong to antenna technical field.The antenna includes surfacewave launch, surface wave guide, medium substrate and coaxial line, and the surfacewave launch part is arranged on medium substrate, includes plane dipole；The surface wave guide part is arranged on medium substrate, includes sizes, unit period identical patch；The coaxial line includes inner core, dielectric layer and outer conductor, and the arm connection of inner core and plane dipole, the outer conductor of feeder line and another arm of plane dipole connect.The present invention have penetrated with wide, both-end, high-gain, high radiation efficiency, and it is simple in structure, section height is low.
Description
Technical field
The invention belongs to antenna technical fields, are related to a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface.
Background technology
With making rapid progress for wireless communication technique, surface-wave antenna receives people as a kind of novel antenna structure
Welcome.Be different from traditional antenna radiation theory for radiate when propagating, surface-wave antenna be it is a kind of can guide wave in surface biography
It broadcasts and non-radiating, only when changing in its structure, surface wave can just be truncated to generate the antenna of radiation.Currently, super
The features such as skin antenna is low with its section height, be easy to conformal, concealment is strong, air drag is small, simple in structure, high gain is wide
It is general used in radar antenna, aircraft surface antenna, communication system Anneta module in.Traditional surface-wave antenna is to utilize ripple
What metal surface was realized, which so that antenna is not only thick and heavy but also with high costs.
Invention content
In view of this, the purpose of the present invention is to provide a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, base
In the antenna of surface wave propagation characteristic, have penetrated with wide, both-end, high-gain, high radiation efficiency, and simple in structure, section
Highly low feature.
In order to achieve the above objectives, the present invention provides the following technical solutions：
A kind of double end-on-fire antenna of ultra wide band based on the super surface of modulation, which includes surfacewave launch, surface wave wave
It leads, medium substrate and coaxial line；
The medium substrate surface is rectangular, described to be coaxially set in the center of the medium substrate；
The surfacewave launch is arranged on the medium substrate, and the surfacewave launch includes plane dipole,
The plane dipole is arranged in the centre position of entire medium substrate, and the plane dipole is in mirror about the coaxial line
As symmetrical；
The surface wave guide is arranged in the both sides of the medium substrate, and the surface wave guide includes sizes, list
First period identical patch, the patch arrangement of the surface wave guide are in mirror symmetry about the coaxial line.
Further, the coaxial line includes inner core, dielectric layer and outer conductor, the arm company of inner core and plane dipole
It connects, the outer conductor of feeder line and another arm of plane dipole connect.
Further, the medium substrate length is 105mm~110mm, and width is 60mm~65mm, thickness 0.8mm
~1.2mm.
Further, the side of the plane dipole is in hierarchic structure, wherein and the first ladder width is 5mm~10mm, the
Two ladder widths are 15mm~20mm, and the first step length is 0.5mm~1mm, and the second step length is 2mm~2.5mm, third
Step length is 10mm~15mm, and thickness is 0.1mm~0.15mm.
Further, the side of the plane dipole is in semi-circular structure, and the radius of semicircle is 10mm~15mm.
Further, the surface wave guide includes four kinds of different sizes, unit period identical patches, wherein：
I size of patch is 7.5mm~8mm, and the centre position in the both sides of medium substrate is arranged in patch I；
II size of patch is 7mm~7.5mm, and patch II is arranged in the both sides of patch I, and quantity is twice of patch I；
III size of patch is 6.5mm~7mm, and patch III is arranged in the both sides of patch II, and quantity is equal with patch II；
IV size of patch is 5mm~5.5mm, and IV 3 bread of the patch surrounds the patch I, patch II and patch III and sets
It sets.
The beneficial effects of the present invention are：The present invention passes through the adjusting of the refractive index to periodic patches and patch and dipole
The arrangement of the relative position of son, to realize the directional diagram that both-end is penetrated, and with ultra wide band impedance matching phenomenon, high radiation effect
Rate and high end-fire peak gain.
In addition to the above-described advantages, the present invention also has the advantages such as simple in structure, easily fabricated, section height is low.It therefore can be with
There is higher signal-to-noise ratio, weaken corresponding transmission damage so that it collects wireless energy in complicated radio communication system terminal
Consumption, and it is applied to WLAN, in the communication system of WiMAX frequency ranges.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out
Explanation：
Fig. 1 is the overall schematic of inventive antenna；
Fig. 2 is the vertical view of inventive antenna；
Fig. 3 is the side view of inventive antenna；
The correspondence of Fig. 4 sizes between the equivalent refractive index and patch of the patch shape unit of the present invention；
Fig. 5 is voltage standing wave(VSW) coefficient ratio (VSER) curve graph with frequency change of the present invention；
Fig. 6 is the gain curve graph with frequency change on the end-on direction of the present invention；
Fig. 7 is antenna pattern of the present invention in the faces E and the faces H of 2GHz frequency points；
Fig. 8 is antenna pattern of the present invention in the faces E and the faces H of 3GHz frequency points；
Fig. 9 is antenna pattern of the present invention in the faces E and the faces H of 4GHz frequency points；
Figure 10 is antenna pattern of the present invention in the faces E and the faces H of 5GHz frequency points；
Figure 11 is antenna pattern of the present invention in the faces E and the faces H of 5.6GHz frequency points；
Wherein：1- plane dipoles, 2- patches, 3- coaxial lines, 4- medium substrates.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
Fig. 1 is the overall schematic of inventive antenna, as shown in Figure 1：The present invention's is a kind of based on the super of the super surface of modulation
The double end-on-fire antenna in broadband, including this four portions of surfacewave launch part, surface wave guide part, medium substrate and coaxial line
Point.
Wherein, surfacewave launch part is arranged on medium substrate, includes super wide band plane dipole；The table
Surface wave waveguide portion is arranged on medium substrate, includes sizes (refractive index), unit period identical patch, guiding
Surface wave is propagated on surface so that antenna has good impedance matching property in 1.85-5.65GHz frequency ranges.
The upper surface periodic patches of medium substrate are symmetrically disposed at the both sides of plane dipole according to certain rules, periodically
Patch relies on the arrangement of its equivalent refractive index, has effectively guided the direction of propagation of surface wave so that the omnidirectional of plane dipole
Property directional diagram becomes the antenna pattern that both-end is penetrated.We have found that using this scheme on super surface, plane idol can not only be expanded
Extremely sub bandwidth, moreover it is possible to antenna be made to keep good high-gain performance in a certain range.
Medium substrate is thin cuboid-type substrate, and in the present embodiment, length l is 63mm, and width w is 108mm, thickness h
For 1mm, material model has selected TACONIC CER-10, and relative dielectric constant 10, relative permeability 1.0, loss angle is just
It is cut to 0.035, the plane dipole and periodic patches structure of medium substrate upper surface, which are that thickness is identical, covers Copper thin film.
The concrete scheme of the present invention is illustrated below by specific embodiment.
Referring to Fig. 1, Fig. 2, Fig. 3.Wherein, 1- plane dipoles, 2- arrange according to certain rules periodic patches, 3- are coaxial
Line, 4- medium substrates.It is close to plane dipole 1 and periodic patches 2, the inner core of coaxial line 3 in 4 upper surface of medium substrate
It is connect with an arm of plane dipole, the outer conductor of feeder line and another arm of plane dipole connect.Medium substrate 4 is thin
Cuboid, a length of l, width w, thickness h, using the making material of model TACONIC CER-10, opposite dielectric is normal
Number is 10, relative permeability 1.0, loss angle tangent 0.035.
After completing above-mentioned initial designs, simulation analysis is carried out using high-frequency electromagnetic simulation software HFSS16.0, is passed through
It is as shown in table 1 that parameters size is obtained after simulation optimization：
1 each parameter optimum size table of the present invention of table
According to above-mentioned parameter, using HFSS16.0 to the designed double end-on-fire antenna of the ultra wide band based on the super surface of modulation
Voltage standing wave ratio (VSWR), the characterisitic parameters such as direction radiation gain carry out simulation analysis, and analysis result is as follows：
The change curve of Fig. 4 sizes between the equivalent refractive index and patch of the patch shape unit of the present invention
Wherein, nswIndicate equivalent refractive index, nswVariation range between 1.1 to 1.45.
Fig. 5 is voltage standing wave(VSW) coefficient ratio (VSWR) curve graph with frequency change of the present invention, as the VSWR of antenna<When 2,
The impedance bandwidth of this antenna is range 1.85-5.65GHz.
Fig. 6 is the gain curve graph with frequency change on the end-on direction of the present invention, when bandwidth is 1.85-5.65GHz
When, gain variation range is from 2.1dBi to 7.32dBi.
Fig. 7-Figure 11 is antenna pattern of the present invention in five Frequency points of 2GHz, 3GHz, 4GHz, 5GHz, 5.6GHz, from
It can be seen from the figure that, at low frequency, antenna shows the omni-directional directional diagram of dipole；With the increase of frequency, antenna radiation pattern
It gradually becomes both-end and penetrates radiation characteristic, and keep good both-end to penetrate phenomenon in certain frequency range.
In conclusion antenna section height is low, frequency coverage is effectively covered by 1.85GHz to 5.65GHz
The low-frequency range (2.4/5.2/5.8GHz) and WiMAX frequency ranges (2.5/3.5/5.5GHz) of WLAN has good voltage standing wave(VSW) special
Property with it is preferable and stablize antenna pattern.
Finally illustrate, preferred embodiment above is only to illustrate the technical solution of invention and unrestricted, although passing through
Above preferred embodiment is described in detail the present invention, however, those skilled in the art should understand that, can be in shape
Various changes are made in formula and to it in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：The antenna include surfacewave launch,
Surface wave guide, medium substrate and coaxial line；
The medium substrate surface is rectangular, described to be coaxially set in the center of the medium substrate；
The surfacewave launch is arranged on the medium substrate, and the surfacewave launch includes plane dipole, described
Plane dipole is arranged in the centre position of entire medium substrate, and the plane dipole is in mirror image pair about the coaxial line
Claim；
The surface wave guide is arranged in the both sides of the medium substrate, and the surface wave guide includes sizes, unit week
The patch of phase identical patch, the surface wave guide arranges that about the coaxial line be in mirror symmetry.
2. according to claim 1 a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：It is described
Coaxial line includes inner core, dielectric layer and outer conductor, the arm connection of inner core and plane dipole, the outer conductor and plane of feeder line
Another arm of dipole connects.
3. according to claim 1 a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：It is described
Medium substrate length is 105mm~110mm, and width is 60mm~65mm, and thickness is 0.8mm~1.2mm.
4. according to claim 3 a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：It is described
The side of plane dipole be in hierarchic structure, wherein the first ladder width be 5mm~10mm, the second ladder width be 15mm~
20mm, the first step length be 0.5mm~1mm, the second step length be 2mm~2.5mm, third step length be 10mm~
15mm, thickness are 0.1mm~0.15mm.
5. according to claim 4 a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：It is described
The side of plane dipole is in semi-circular structure, and the radius of semicircle is 10mm~15mm.
6. according to claim 1 a kind of based on the double end-on-fire antenna of ultra wide band for modulating super surface, it is characterised in that：It is described
Surface wave guide includes four kinds of different sizes, unit period identical patches, wherein：
I size of sub-wavelength patch is 7.5mm~8mm, and the centre position in the both sides of medium substrate is arranged in patch I；
II size of patch is 7mm~7.5mm, and patch II is arranged in the both sides of patch I, and quantity is twice of patch I；
III size of patch is 6.5mm~7mm, and patch III is arranged in the both sides of patch II, and quantity is equal with patch II；
IV size of patch is 5mm~5.5mm, and IV 3 bread of the patch surrounds the patch I, patch II and patch III and is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810313073.4A CN108429010B (en) | 2018-04-09 | 2018-04-09 | Ultra-wideband double-end-fire antenna based on modulation super-surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810313073.4A CN108429010B (en) | 2018-04-09 | 2018-04-09 | Ultra-wideband double-end-fire antenna based on modulation super-surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108429010A true CN108429010A (en) | 2018-08-21 |
| CN108429010B CN108429010B (en) | 2020-03-17 |
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ID=63160642
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810313073.4A Active CN108429010B (en) | 2018-04-09 | 2018-04-09 | Ultra-wideband double-end-fire antenna based on modulation super-surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326878A (en) * | 2018-10-11 | 2019-02-12 | 西南交通大学 | A kind of broadband end-on-fire antenna based on surface wave guide and high impedance surface |
| CN112151946A (en) * | 2019-06-26 | 2020-12-29 | 三星电机株式会社 | Antenna device |
| CN112366456A (en) * | 2020-11-02 | 2021-02-12 | 合肥学院 | 5G communication is with ultra wide band antenna based on artifical electromagnetism metamaterial |
| CN117353007A (en) * | 2023-11-02 | 2024-01-05 | 南通大学 | Vertical polarization bidirectional radiation antenna |
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| WO2001071849A3 (en) * | 2000-03-20 | 2002-03-21 | Sarnoff Corp | Reconfigurable antenna |
| CN105244615A (en) * | 2015-11-04 | 2016-01-13 | 南京信息工程大学 | Ultra wide band transparent antenna |
| CN105789906A (en) * | 2016-03-03 | 2016-07-20 | 电子科技大学 | 2D phase gradient super-surface composite structure |
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| CN105244615A (en) * | 2015-11-04 | 2016-01-13 | 南京信息工程大学 | Ultra wide band transparent antenna |
| CN105789906A (en) * | 2016-03-03 | 2016-07-20 | 电子科技大学 | 2D phase gradient super-surface composite structure |
| CN106785405A (en) * | 2017-01-12 | 2017-05-31 | 重庆邮电大学 | A kind of low section dual polarization dipole subbase station antenna of loading AMC reflecting plates |
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| ENRICA MARTINI等: "Flat Optics for Surface Waves", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326878A (en) * | 2018-10-11 | 2019-02-12 | 西南交通大学 | A kind of broadband end-on-fire antenna based on surface wave guide and high impedance surface |
| CN109326878B (en) * | 2018-10-11 | 2019-10-08 | 西南交通大学 | A kind of broadband end-on-fire antenna based on surface wave guide and high impedance surface |
| CN112151946A (en) * | 2019-06-26 | 2020-12-29 | 三星电机株式会社 | Antenna device |
| CN112366456A (en) * | 2020-11-02 | 2021-02-12 | 合肥学院 | 5G communication is with ultra wide band antenna based on artifical electromagnetism metamaterial |
| CN117353007A (en) * | 2023-11-02 | 2024-01-05 | 南通大学 | Vertical polarization bidirectional radiation antenna |
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| CN108429010B (en) | 2020-03-17 |
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