CN106602246A - Frequency scanning antenna based on microwave surface plasmon - Google Patents
Frequency scanning antenna based on microwave surface plasmon Download PDFInfo
- Publication number
- CN106602246A CN106602246A CN201611196868.9A CN201611196868A CN106602246A CN 106602246 A CN106602246 A CN 106602246A CN 201611196868 A CN201611196868 A CN 201611196868A CN 106602246 A CN106602246 A CN 106602246A
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- Prior art keywords
- metal
- antenna
- frequency scanning
- frequency
- dielectric substrate
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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
-
- 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
Abstract
The invention discloses a high performance wide angle domain frequency scanning antenna based on microwave surface plasmon and is different form traditional frequency scanning antennas. According to the frequency scanning antenna, different metal unit structures are etched on a medium surface, electromagnetic waves are coupled to be microwave surface plasmons, and the microwave surface plasmons are radiated in a conduction process. The frequency scanning antenna is advantaged in that the frequency scanning antenna is manufactured through employing the printed circuit board technology, sub-wavelength thickness and a plane structure have properties of wide scanning angle domain, linear scanning angle distribution and strong designability, and the frequency scanning antenna can be applied to engineering practices.
Description
Technical field
The present invention relates to antenna technical field, the more particularly to frequency scan antenna based on microwave surface phasmon.
Background technology
Antenna is mainly completed in a wireless communication device：First, energy translation function；2nd, directed radiation (or reception) function.
With radiotechnics develop rapidly and radio application scenario increasingly extension, occur in that various uses, species
Various antenna, frequency scan antenna is one of which.The phase place of frequency scan antenna medium wave is the function of frequency, so ripple
Shu Zhixiang angles regularly change on a large scale, abbreviation frequency scanning antenna with a small amount of change of operating frequency, are mainly used in high data
Rate three-dimensional radar.
Existing frequency scanning antenna common form has leaky-wave antenna, Frequency scanning arrays antenna etc..Leaky-wave antenna is mainly with waveguide
The form of slot realizes that various structures are extremely complex, and bulky, requirement on machining accuracy is high, scanning angular domain is narrow；Frequency is swept
The realization for retouching array antenna depends on slow wave line, by opening the form of slot by the energy coupling in slow wave line to space
In.Slow wave line complex structure, requirement on machining accuracy is high, and slot affects larger to its coupling efficiency.
The content of the invention
The frequency scan antenna based on microwave surface phasmon is embodiments provided, prior art can be solved
Present in problem.
A kind of frequency scan antenna based on microwave surface phasmon, the frequency scan antenna is wrapped successively from bottom to up
Bottom ground plate, bottom dielectric substrate, center-point earth plate, central dielectric substrate, metal unit and top medium substrate are included, it is described
Metal unit is also electrically connected with the coaxial port positioned at described central dielectric substrate one end；The metal unit is etched in described
On the top surface of central dielectric substrate, the metal unit include be electrically connected with comb teeth-shaped metal structure and it is monolateral dehisce it is horn-like
Metal structure, the comb teeth-shaped metal structure be used for coupling with conducts microwaves surface phasmon, it is described it is monolateral dehisce it is horn-like
Metal structure is used to radiate microwave surface phasmon, each described monolateral horn-like metal structure and multiple described comb of dehiscing
Dentation metal structure position correspondence, and one group of metal unit structure is formed, there are 43 institutes on a frequency scan antenna
Metal unit structure is stated, and the metal unit structure is operated in X-band.
Preferably, the center-point earth plate is covered in the central dielectric substrate bottom surface, and the center-point earth plate
It is smaller in size than the size of the central dielectric substrate.
High-performance width angular domain frequency scan antenna in the embodiment of the present invention based on the design of microwave surface phasmon, it is different
In traditional frequency scan antenna, but by etching different metal unit structures in dielectric surface, electromagnetic wave is coupled as
Microwave surface phasmon, is radiate in the conductive process of microwave surface phasmon.The present invention is based on microwave table
The high-performance width angular domain frequency scan antenna of face phasmon design, is made using printed-board technology, sub-wavelength thickness, flat
Face structure, has the advantages that scan angle field width, scan angle linear distribution, designability are strong, can be used for engineering practice.
The technique effect of the present invention is as follows：
1st, made using printed-board technology, planar structure, process is simple, low cost, it is sub-wavelength thickness, easily conformal；
2nd, have the advantages that scan angle field width, scan angle linear distribution, wave beam be narrow, high gain.
3rd, by adjusting metal unit structure size, cycle, thus it is possible to vary the working frequency range of frequency scanning antenna, bandwidth, gain,
The characteristics such as scanning angle, are capable of achieving any bandwidth, at any angle beam scanning.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is longitudinal tangent plane knot of the frequency scan antenna based on microwave surface phasmon provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 2 is the overlooking the structure diagram that Fig. 1 medium frequencys scanning antenna removes top medium substrate；
Fig. 3 is the present invention looks up structural representation that Fig. 1 medium frequencys scanning antenna removes Bottom ground plate and bottom dielectric substrate；
Fig. 4 is the S of Fig. 1 medium frequency scanning antennas11Curve chart, including simulation calculation and experimental results；
Fig. 5 a are the simulation result of the far gain polar coordinate view of Fig. 1 medium frequency scanning antennas；
Fig. 5 b are the experimental results of the far gain polar coordinate view of Fig. 1 medium frequency scanning antennas；
Fig. 6 is the far gain peak curve of the simulation calculation of Fig. 1 medium frequency scanning antennas；
Fig. 7 for Fig. 1 medium frequency scanning antennas half-power beam angular breadth curve, including simulation calculation and experiment test tie
Really；
Fig. 8 for Fig. 1 medium frequency scanning antennas main lobe direction curve, including simulation calculation and experimental results.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Before technical scheme is introduced, need to explain some technical terms.
Microwave surface phasmon is the phasmon of microwave frequency band, by sub- in dielectric surface etching period or paracycle
Length metal cellular construction, changes the boundary condition of incident electromagnetic wave so as in the normal direction exponential decay at interface, and
Upwardly propagate parallel to the side at interface.Because microwave surface phasmon has deep sub-wavelength characteristic and Localized field enhancement effect
Should, electromagnetic wave is limited in the space of very little, of great advantage to the Miniaturization Design of antenna.In addition, microwave surface etc. is from sharp
Unit has non-linear frequency dispersion characteristics, and the phase place of electromagnetic wave is closely bound up with frequency, and for the design of frequency scanning antenna, provide can
Energy.Microwave surface phasmon is applied in the design of antenna, the volume of antenna can be greatly reduced, improves the property of antenna
Can, capture many traditional antennas and design insurmountable technical barrier, design a series of new antenna of excellent performances.
It is the frequency scan antenna based on microwave surface phasmon provided in the embodiment of the present invention with reference to Fig. 1, it is described
The size of frequency scan antenna is 432 × 16.25 × 3.0mm3, it includes from bottom to up Bottom ground plate 100, bottom dielectric base
Plate 200, center-point earth plate 300, central dielectric substrate 400, metal unit 500 and top medium substrate 600, the metal unit
500 are also electrically connected with the coaxial port 700 positioned at described one end of central dielectric substrate 400.
With reference to Fig. 2, to be etched on the top surface of the central dielectric substrate 400, it includes electrically the metal unit 500
The comb teeth-shaped metal structure 510 of connection and monolateral horn-like metal structure 520 of dehiscing, the comb teeth-shaped metal structure 510 is used for
Coupling with conducts microwaves surface phasmon, it is described it is monolateral dehisce horn-like metal structure 520 for radiate microwave surface etc. from
Excimer.Each described monolateral horn-like metal structure 520 of dehiscing is corresponding with multiple positions of comb teeth-shaped metal structure 510,
And one group of metal unit structure is formed, there is 43 metal unit structures, and work on a frequency scan antenna
Make in X-band, the metal unit structure is etched and is formed on the top surface of the central dielectric substrate 400.
With reference to Fig. 3, the part of central dielectric substrate 400 covers the center-point earth plate 300, i.e., described center-point earth plate
300 size for being smaller in size than the central dielectric substrate 400, the bottom dielectric substrate 200 is covered in the center-point earth
On the bottom surface of plate 300, the Bottom ground plate 100 is covered on the bottom surface of the bottom dielectric substrate 200.
It is determined that on the premise of above-mentioned basic structure, performing a scan the dielectric constant of antenna, damaging according to specific requirement
Consumption and thickness, the dielectric constant of metal unit substrate, loss and thickness, size, arrangement mode of metal unit structure etc..
With reference to Fig. 4, the frequency scan antenna is in X-band S11Respectively less than -10dB.
Reference picture 5a, the frequency scan antenna 8.5, at 9,9.5,10,10.5,11,11.5,12.0GHz frequencies
Gain simulation result.
Reference picture 5b, the frequency scan antenna 8.5, at 9,9.5,10,10.5,11,11.5,12.0GHz frequencies
Gain test result.
With reference to Fig. 6, in 8.5～12.0GHz frequency ranges, average gain is about 15dB to the frequency scan antenna.
With reference to Fig. 7, in 8.5～12.0GHz frequency ranges, half-power angle width is about 6 ° to the frequency scan antenna.
With reference to Fig. 8, the frequency scan antenna scans about -50～50 ° of angular domain in 8.5～12.0GHz frequency ranges, and
The linearity is fine.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (2)
1. a kind of frequency scan antenna based on microwave surface phasmon, it is characterised in that the frequency scan antenna is under
It is supreme to include that Bottom ground plate, bottom dielectric substrate, center-point earth plate, central dielectric substrate, metal unit and top are situated between successively
Matter substrate, the metal unit is also electrically connected with the coaxial port positioned at described central dielectric substrate one end；The metal list
Unit is etched on the top surface of the central dielectric substrate, and the metal unit includes comb teeth-shaped metal structure and the list being electrically connected with
While horn-like metal structure of dehiscing, the comb teeth-shaped metal structure is for coupling and conducts microwaves surface phasmon, the list
While horn-like metal structure is dehisced for radiating microwave surface phasmon, each described monolateral horn-like metal structure of dehiscing
It is corresponding with multiple comb teeth-shaped metal structure positions, and one group of metal unit structure is formed, a frequency scan antenna
It is upper that there are 43 metal unit structures, and the metal unit structure is operated in X-band.
2. frequency scan antenna as claimed in claim 1, it is characterised in that the center-point earth plate is covered in the central authorities and is situated between
In matter substrate bottom surface, and the size for being smaller in size than the central dielectric substrate of the center-point earth plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196868.9A CN106602246B (en) | 2016-12-22 | 2016-12-22 | Frequency scan antenna based on microwave surface phasmon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196868.9A CN106602246B (en) | 2016-12-22 | 2016-12-22 | Frequency scan antenna based on microwave surface phasmon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106602246A true CN106602246A (en) | 2017-04-26 |
| CN106602246B CN106602246B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611196868.9A Expired - Fee Related CN106602246B (en) | 2016-12-22 | 2016-12-22 | Frequency scan antenna based on microwave surface phasmon |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681279A (en) * | 2017-09-26 | 2018-02-09 | 中国人民解放军空军工程大学 | Areflexia backboard, heavy caliber artificial surface phasmon broadband frequency sweep plate aerial |
| CN108172966A (en) * | 2017-11-30 | 2018-06-15 | 安徽四创电子股份有限公司 | High frequency scan antenna is surveyed at a kind of quarter-phase center |
| CN108321519A (en) * | 2018-02-07 | 2018-07-24 | 南京邮电大学 | Bilateral binary cycle surface phasmon leaky-wave antenna |
| CN108879103A (en) * | 2018-06-28 | 2018-11-23 | 中国人民解放军空军工程大学 | Compact feeding network type artificial surface phasmon panel antenna array |
| CN111106442A (en) * | 2020-01-10 | 2020-05-05 | 东南大学 | Space multi-polarization leaky-wave antenna, polarization reconfigurable array thereof and polarization reconfiguration method |
| CN111916908A (en) * | 2020-08-25 | 2020-11-10 | 西安电子科技大学 | Horizontal omnidirectional frequency scanning antenna based on artificial surface plasmon |
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| US20100110525A1 (en) * | 2008-10-30 | 2010-05-06 | Lehigh University | Ultra-wide band slow light structure using plasmonic graded grating structures |
| US20130301983A1 (en) * | 2012-05-08 | 2013-11-14 | Pinaki Mazumder | Dynamic Terahertz Switching Device Comprising Sub-wavelength Corrugated Waveguides and Cavity that Utilizes Resonance and Absorption for Attaining On and Off states |
| CN104852254A (en) * | 2015-04-13 | 2015-08-19 | 东南大学 | Broadband surface Plasmon radiator |
| CN105261841A (en) * | 2015-09-16 | 2016-01-20 | 东南大学 | Quasi-surface plasmon-based leaky-wave antenna |
| CN105305099A (en) * | 2015-11-13 | 2016-02-03 | 东南大学 | Patch array capable of realizing wide angle frequency scanning by employing planar surface plasmon feed |
-
2016
- 2016-12-22 CN CN201611196868.9A patent/CN106602246B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100110525A1 (en) * | 2008-10-30 | 2010-05-06 | Lehigh University | Ultra-wide band slow light structure using plasmonic graded grating structures |
| US20130301983A1 (en) * | 2012-05-08 | 2013-11-14 | Pinaki Mazumder | Dynamic Terahertz Switching Device Comprising Sub-wavelength Corrugated Waveguides and Cavity that Utilizes Resonance and Absorption for Attaining On and Off states |
| CN104852254A (en) * | 2015-04-13 | 2015-08-19 | 东南大学 | Broadband surface Plasmon radiator |
| CN105261841A (en) * | 2015-09-16 | 2016-01-20 | 东南大学 | Quasi-surface plasmon-based leaky-wave antenna |
| CN105305099A (en) * | 2015-11-13 | 2016-02-03 | 东南大学 | Patch array capable of realizing wide angle frequency scanning by employing planar surface plasmon feed |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681279A (en) * | 2017-09-26 | 2018-02-09 | 中国人民解放军空军工程大学 | Areflexia backboard, heavy caliber artificial surface phasmon broadband frequency sweep plate aerial |
| CN108172966A (en) * | 2017-11-30 | 2018-06-15 | 安徽四创电子股份有限公司 | High frequency scan antenna is surveyed at a kind of quarter-phase center |
| CN108172966B (en) * | 2017-11-30 | 2019-10-25 | 安徽四创电子股份有限公司 | A kind of quarter-phase center survey high frequency scan antenna |
| CN108321519A (en) * | 2018-02-07 | 2018-07-24 | 南京邮电大学 | Bilateral binary cycle surface phasmon leaky-wave antenna |
| CN108879103A (en) * | 2018-06-28 | 2018-11-23 | 中国人民解放军空军工程大学 | Compact feeding network type artificial surface phasmon panel antenna array |
| CN111106442A (en) * | 2020-01-10 | 2020-05-05 | 东南大学 | Space multi-polarization leaky-wave antenna, polarization reconfigurable array thereof and polarization reconfiguration method |
| CN111106442B (en) * | 2020-01-10 | 2021-11-12 | 东南大学 | Space multi-polarization leaky-wave antenna, polarization reconfigurable array thereof and polarization reconfiguration method |
| CN111916908A (en) * | 2020-08-25 | 2020-11-10 | 西安电子科技大学 | Horizontal omnidirectional frequency scanning antenna based on artificial surface plasmon |
| CN111916908B (en) * | 2020-08-25 | 2022-05-17 | 西安电子科技大学 | Horizontal omnidirectional frequency scanning antenna based on artificial surface plasmon |
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| CN106602246B (en) | 2019-04-05 |
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