CN107453051A - Antenna and its performance implementation method based on imperfect frequency-selective surfaces - Google Patents
Antenna and its performance implementation method based on imperfect frequency-selective surfaces Download PDFInfo
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- CN107453051A CN107453051A CN201710546020.2A CN201710546020A CN107453051A CN 107453051 A CN107453051 A CN 107453051A CN 201710546020 A CN201710546020 A CN 201710546020A CN 107453051 A CN107453051 A CN 107453051A
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- Prior art keywords
- imperfect
- frequency
- selective surfaces
- antenna
- meta materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- 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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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses the antenna based on imperfect frequency-selective surfaces and its performance implementation method, wherein, the antenna based on imperfect frequency-selective surfaces is made up of imperfect electromagnetism Meta Materials frequency-selective surfaces, the sub- gap printed antenna of planar monopole and the air matching layer between imperfect electromagnetism Meta Materials frequency-selective surfaces and plane monopole gap printed antenna.Imperfect electromagnetism Meta Materials frequency-selective surfaces are made up of first medium substrate and etching metal side's ring array.The present invention is carried on the sub- gap printed antenna of planar monopole using imperfect electromagnetism Meta Materials frequency-selective surfaces, is effectively improved directionality and the gain of the sub- gap printed antenna of planar monopole；Electromagnetism Meta Materials are carried in the gain for not influenceing that antenna can be effectively improved in the case of antenna match；The present invention has the features such as structure is popular, and technique is simple, flexible design, functional.
Description
Technical field
The present invention relates to the antenna based on imperfect frequency-selective surfaces and its performance implementation method, belong to electromagnetic communication,
Microwave components design technical field.
Background technology
Electromagnetism Meta Materials frequency-selective surfaces are the artificial electromagnetic materials that thickness is less than electromagnetic wavelength, are received extensive
Concern.Imperfect electromagnetism Meta Materials frequency-selective surfaces can realize flexibly having to electromagnetic wave phase, polarization mode and circulation way
Effect regulation.Meta Materials are typically inhaling ripple, stealthy, polarization conversion etc. progress rapidly.By largely being ground to super surface
Study carefully, realize a series of applications, one of them is exactly to utilize the loaded and optimized flat of imperfect electromagnetism Meta Materials frequency-selective surfaces
Surface antenna performance.Imperfect electromagnetism Meta Materials frequency-selective surfaces can be used for improving antenna due to its special electromagnetic property
Impedance bandwidth and gain.Due to thickness of thin, in light weight, bandwidth, the imperfect frequency-selective surfaces being designed to by the unit exist
There is very big application potential in terms of high-gain aerial, electromagnetic wave manipulation.
The content of the invention
The technical problems to be solved by the invention are：Antenna and its performance reality based on imperfect frequency-selective surfaces are provided
Existing method, imperfect electromagnetism Meta Materials frequency-selective surfaces are carried on the sub- gap printed antenna of planar monopole, not influenceed
The gain of antenna can be effectively improved in the case of antenna match.
The present invention uses following technical scheme to solve above-mentioned technical problem：
Based on the antenna of imperfect frequency-selective surfaces, including imperfect electromagnetism Meta Materials frequency-selective surfaces, plane list
Extremely sub- gap printed antenna and positioned at imperfect electromagnetism Meta Materials frequency-selective surfaces and plane monopole gap printed antenna
Between air matching layer；Wherein, imperfect electromagnetism Meta Materials frequency-selective surfaces by first medium substrate, be etched in first Jie
Metal side ring array composition on the one of surface of matter substrate, metal side's ring array by multiple metal Fang Huan from top to bottom, from
Left-to-right periodic arrangement forms；Another surface of first medium substrate is in contact with air matching layer；Imperfect electromagnetism surpasses
The length on material frequencies selection surface is more than or equal to the length of the sub- gap printed antenna of planar monopole, and imperfect electromagnetism Meta Materials
The width of frequency-selective surfaces is more than or equal to the width of the sub- gap printed antenna of planar monopole.
As a preferred embodiment of the present invention, the sub- gap printed antenna of planar monopole include second medium substrate,
Rectangular metal paster, with second medium size of substrate identical metal patch, be provided with a rectangular notch, metal on the metal patch
Paster is etched in one of surface of second medium substrate, and rectangular metal paster is etched in another table of second medium substrate
Face, and the surface for being etched with rectangular metal paster is in contact with air matching layer.
As a preferred embodiment of the present invention, the material of the first medium substrate is polytetrafluoroethylene (PTFE).
As a preferred embodiment of the present invention, the material of the second medium substrate is polytetrafluoroethylene (PTFE).
The performance implementation method of antenna based on imperfect frequency-selective surfaces, imperfect electromagnetism Meta Materials frequency is selected
Surface, the horizontal face of the sub- gap printed antenna of planar monopole are placed, and the center of imperfect electromagnetism Meta Materials frequency-selective surfaces,
The sub- gap printed antenna of planar monopole is centrally located at a vertical straight line, the sub- gap printed antenna main radiation direction of planar monopole
Electromagnetic wave some be transmitted to outside imperfect electromagnetism Meta Materials frequency-selective surfaces, remainder is by the super material of imperfect electromagnetism
Material frequency-selective surfaces reflex to the sub- gap printed antenna of planar monopole, are reflexed to again by the sub- gap printed antenna of planar monopole
Imperfect electromagnetism Meta Materials frequency-selective surfaces simultaneously transmit away, and it is transmitted to imperfect electromagnetism Meta Materials frequency selection with foregoing
Constructive interference occurs for a part of electromagnetic wave outside surface, so as to realize antenna gain.
The present invention compared with prior art, has following technique effect using above technical scheme：
1st, it is of the invention by loading imperfect electromagnetism Meta Materials frequency-selective surfaces on the printed antenna of monopole gap,
The gain of antenna is not influenceed to effectively increase in the case of antenna match.
2nd, the present invention has the features such as structure is popular, and technique is simple, flexible design, functional.
Brief description of the drawings
Fig. 1 a, Fig. 1 b, Fig. 1 c are that the imperfect electromagnetism Meta Materials frequency-selective surfaces of the present invention and planar monopole stitch respectively
Front view, dorsal view, the side view of gap printed antenna combination.
Fig. 2 is imperfect electromagnetism Meta Materials frequency selection surface cell structural representation.
Fig. 3 is the sub- gap printed antenna front view of planar monopole.
Fig. 4 is imperfect electromagnetism Meta Materials frequency selection surface reflectance phase diagram.
Fig. 5 is antenna E faces directional diagram before and after the imperfect electromagnetism Meta Materials frequency-selective surfaces of loading.
Fig. 6 is the schematic diagram that antenna gain implementation method is improved using imperfect electromagnetism Meta Materials frequency-selective surfaces.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The present invention improves antenna gain using imperfect frequency-selective surfaces, passes through simple imperfect electromagnetism meta-material frequency
Rate selection surface improves the gain of the sub- gap printed antenna of planar monopole, while also illustrates its performance implementation method.
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, the present invention improves plane list using imperfect electromagnetism Meta Materials frequency-selective surfaces
Extremely sub- gap printed antenna gain, planar monopole of imperfect electromagnetism Meta Materials frequency-selective surfaces 1 and coplanar wave guide feedback
There is a layer of air matching layer 3 between gap printed antenna 2.Imperfect electromagnetism Meta Materials frequency selection surface texture is single by 9 × 11
Member composition, by being formed in the medium substrate unit 4 and metal side's ring 5 of periodic arrangement.The imperfect electromagnetism Meta Materials frequency choosing
Select surface and traditional frequency-selective surfaces are different, the surface further determines have higher transmission coefficient and reflection system in frequency range
Number, and reflected phase is relatively flat in the special frequency channel.
As shown in Fig. 2 etch metal side's ring 5 on each medium substrate unit 4, metal Fang Huan while with substrate while it is parallel
The two shares a center.Two neighboring metal Fang Huan spacing and the reflection system of imperfect electromagnetism Meta Materials frequency-selective surfaces
Number is relevant, and spacing is bigger, and reflectance factor is smaller, and spacing is smaller, and reflectance factor is bigger.Therefore, it is necessary to by continuous emulation experiment,
Obtain two neighboring metal Fang Huan spacing.
As shown in figure 3, the radiating element of the sub- gap printed antenna of planar monopole is a rectangular metal paster 6, positioned at day
The front of line, the working frequency of the effect length antenna of rectangular metal paster.Antenna back panel is all-metal but eliminates one piece
Rectangular metal copper sheet, the antenna have omnidirectional radiation performance.
As shown in figure 4, it is imperfect electromagnetism Meta Materials frequency selection surface reflectance phase diagram.
As shown in figure 5, it is antenna E faces directional diagram before and after the imperfect electromagnetism Meta Materials frequency-selective surfaces of loading.
As shown in fig. 6, the production method of antenna gain performance, imperfect electromagnetism are improved using imperfect frequency-selective surfaces
Meta Materials frequency-selective surfaces allow for covering the sub- gap printed antenna of planar monopole, utilize imperfect electromagnetism Meta Materials frequency
Selection surface has higher transmission coefficient and reflectance factor, and the phase bit comparison of reflectance factor is gentle, so that omnidirectional
The electromagnetic wave of antenna main radiation direction is in addition to part is through imperfect frequency-selective surfaces, and its echo reflected is by antenna
The reflection of plate, constructive interference occurs so as to realize increase antenna gain with the electromagnetic wave of transmissive.
The technological thought of above example only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, the scope of the present invention is each fallen within
Within.
Claims (5)
1. the antenna based on imperfect frequency-selective surfaces, it is characterised in that select table including imperfect electromagnetism Meta Materials frequency
Face, the sub- gap printed antenna of planar monopole and positioned at imperfect electromagnetism Meta Materials frequency-selective surfaces and plane monopole gap
Air matching layer between printed antenna；Wherein, imperfect electromagnetism Meta Materials frequency-selective surfaces are by first medium substrate, etching
Metal side's ring array composition on the one of surface of first medium substrate, metal side's ring array is by multiple metal Fang Huancong
Under, from left to right periodic arrangement forms；Another surface of first medium substrate is in contact with air matching layer；It is imperfect
The length of electromagnetism Meta Materials frequency-selective surfaces is more than or equal to the length of the sub- gap printed antenna of planar monopole, and imperfect electromagnetism
The width of Meta Materials frequency-selective surfaces is more than or equal to the width of the sub- gap printed antenna of planar monopole.
2. the antenna according to claim 1 based on imperfect frequency-selective surfaces, it is characterised in that planar monopole
Gap printed antenna includes second medium substrate, rectangular metal paster and second medium size of substrate identical metal patch, should
A rectangular notch is provided with metal patch, metal patch is etched in one of surface of second medium substrate, rectangular metal patch
Piece is etched in another surface of second medium substrate, and the surface for being etched with rectangular metal paster connects with air matching layer
Touch.
3. the antenna according to claim 1 based on imperfect frequency-selective surfaces, it is characterised in that the first medium base
The material of plate is polytetrafluoroethylene (PTFE).
4. the antenna according to claim 1 based on imperfect frequency-selective surfaces, it is characterised in that the second medium base
The material of plate is polytetrafluoroethylene (PTFE).
5. the performance implementation method of the antenna based on imperfect frequency-selective surfaces, it is characterised in that by the super material of imperfect electromagnetism
Expect that the horizontal face of frequency-selective surfaces, the sub- gap printed antenna of planar monopole is placed, and imperfect electromagnetism Meta Materials frequency selects
The center on surface, the sub- gap printed antenna of planar monopole are centrally located at a vertical straight line, the sub- gap printing day of planar monopole
Some is transmitted to outside imperfect electromagnetism Meta Materials frequency-selective surfaces the electromagnetic wave of line main radiation direction, and remainder is not by
Perfect electromagnetism Meta Materials frequency-selective surfaces reflex to the sub- gap printed antenna of planar monopole, print day by the sub- gap of planar monopole
Line reflexes to imperfect electromagnetism Meta Materials frequency-selective surfaces and transmitted away again, and it is transmitted to imperfect electromagnetism and surpassed with foregoing
Constructive interference occurs for a part of electromagnetic wave outside material frequencies selection surface, so as to realize antenna gain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546020.2A CN107453051A (en) | 2017-07-06 | 2017-07-06 | Antenna and its performance implementation method based on imperfect frequency-selective surfaces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710546020.2A CN107453051A (en) | 2017-07-06 | 2017-07-06 | Antenna and its performance implementation method based on imperfect frequency-selective surfaces |
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| CN107453051A true CN107453051A (en) | 2017-12-08 |
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| CN201710546020.2A Pending CN107453051A (en) | 2017-07-06 | 2017-07-06 | Antenna and its performance implementation method based on imperfect frequency-selective surfaces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037956A (en) * | 2018-06-07 | 2018-12-18 | 西安电子科技大学 | A kind of super surface system of radar invisible with wave beam aggregation feature, radar |
| CN116723689A (en) * | 2023-08-10 | 2023-09-08 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
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| CN104466375A (en) * | 2014-11-25 | 2015-03-25 | 骆柳春 | Novel antenna with coating layer |
| CN105846017A (en) * | 2016-04-19 | 2016-08-10 | 成都德杉科技有限公司 | Frequency selective surface structure with wide passband and ultra-wide stopband |
| US9444147B2 (en) * | 2011-07-18 | 2016-09-13 | The United States Of America As Represented By The Secretary Of The Army | Ultra-wide-band (UWB) antenna assembly with at least one director and electromagnetic reflective subassembly and method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9444147B2 (en) * | 2011-07-18 | 2016-09-13 | The United States Of America As Represented By The Secretary Of The Army | Ultra-wide-band (UWB) antenna assembly with at least one director and electromagnetic reflective subassembly and method |
| CN102760962A (en) * | 2012-07-03 | 2012-10-31 | 深圳光启创新技术有限公司 | Wideband wave-transmitting metamaterial, and antenna housing and antenna system formed by same |
| CN104466375A (en) * | 2014-11-25 | 2015-03-25 | 骆柳春 | Novel antenna with coating layer |
| CN105846017A (en) * | 2016-04-19 | 2016-08-10 | 成都德杉科技有限公司 | Frequency selective surface structure with wide passband and ultra-wide stopband |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037956A (en) * | 2018-06-07 | 2018-12-18 | 西安电子科技大学 | A kind of super surface system of radar invisible with wave beam aggregation feature, radar |
| CN116723689A (en) * | 2023-08-10 | 2023-09-08 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
| CN116723689B (en) * | 2023-08-10 | 2023-10-17 | 西南科技大学 | Circular ring-shaped energy selection surface applied to circular waveguide and circular waveguide |
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Application publication date: 20171208 |
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