CN106602246B - Frequency scan antenna based on microwave surface phasmon - Google Patents
Frequency scan antenna based on microwave surface phasmon Download PDFInfo
- Publication number
- CN106602246B CN106602246B CN201611196868.9A CN201611196868A CN106602246B CN 106602246 B CN106602246 B CN 106602246B CN 201611196868 A CN201611196868 A CN 201611196868A CN 106602246 B CN106602246 B CN 106602246B
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- Prior art keywords
- frequency scan
- surface phasmon
- metal
- scan antenna
- dielectric substrate
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- 239000002184 metal Substances 0.000 claims abstract description 44
- 238000005530 etching Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 26
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses the wide angular domain frequency scan antennas of the high-performance designed based on microwave surface phasmon, different from 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 the wide angular domain frequency scan antennas of high-performance of microwave surface phasmon design, it is made of printed-board technology, sub-wavelength thickness, planar structure have many advantages, such as that scan angle field width, scan angle linear distribution, designability are strong, can be used for engineering practice.
Description
Technical field
The present invention relates to antenna technical fields, more particularly to the frequency scan antenna based on microwave surface phasmon.
Background technique
Antenna is mainly completed in a wireless communication device: one, energy conversion function；Two, directed radiation (or reception) function.
With the rapid development of radio technology and the increasingly extension of wireless device application, there is various uses, type
Numerous antennas, frequency scan antenna are one of.The phase of frequency scan antenna medium wave is the function of frequency, so wave
The angle Shu Zhixiang is regularly a wide range of with a small amount of change of working frequency to be changed, and abbreviation frequency scanning antenna is mainly used for 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, 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 the energy coupling in slow wave line to space by way of opening slot
In.Structure is complicated for slow wave line, and requirement on machining accuracy is high, and slot is affected to its coupling efficiency.
Summary of the invention
The embodiment of the invention provides the frequency scan antennas based on microwave surface phasmon, can solve the prior art
The problem of.
A kind of frequency scan antenna based on microwave surface phasmon, the frequency scan antenna successively wrap 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 for being located at central dielectric substrate one end；The metal unit etching is described
On the top surface of central dielectric substrate, the metal unit include be electrically connected comb teeth-shaped metal structure and it is unilateral dehisce it is horn-like
Metal structure, the comb teeth-shaped metal structure for couple with conducts microwaves surface phasmon, it is described it is unilateral dehisce it is horn-like
Metal structure is for radiating microwave surface phasmon, each described unilateral horn-like metal structure and multiple described comb of dehiscing
Dentation metal structure position is corresponding, and forms one group of metal unit structure, has 43 institutes on a frequency scan antenna
Metal unit structure is stated, and the metal unit structure works in X-band.
Preferably, the center-point earth plate is covered in the central dielectric substrate bottom surface, and the center-point earth plate
Size is less than the size of the central dielectric substrate.
The wide angular domain frequency scan antenna of high-performance based on the design of microwave surface phasmon in the embodiment of the present invention, 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 tables
The wide angular domain frequency scan antenna of high-performance of face phasmon design, is made of printed-board technology, and sub-wavelength thickness is put down
Face structure has many advantages, such as that scan angle field width, scan angle linear distribution, designability are strong, can be used for engineering practice.
Technical effect of the invention is as follows:
1, be made of printed-board technology, planar structure, simple process, low cost, sub-wavelength thickness, easily it is conformal；
2, have many advantages, such as that scan angle field width, scan angle linear distribution, wave beam be narrow, high gain.
3, by adjusting metal unit structure size, period, thus it is possible to vary the working frequency range of frequency scanning antenna, bandwidth, gain,
The characteristics such as scanning angle are, it can be achieved that any bandwidth, at any angle beam scanning.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that longitudinal section of the frequency scan antenna provided in an embodiment of the present invention based on microwave surface phasmon is tied
Structure schematic diagram；
Fig. 2 is the overlooking structure diagram that frequency scan antenna removes top medium substrate in Fig. 1；
Fig. 3 is the present invention looks up structural representation that frequency scan antenna removes Bottom ground plate and bottom dielectric substrate in Fig. 1；
Fig. 4 is the S of frequency scan antenna in Fig. 111Curve graph, including simulation calculation and experimental results；
Fig. 5 a is the simulation result of the far gain polar coordinates view of frequency scan antenna in Fig. 1；
Fig. 5 b is the experimental results of the far gain polar coordinates view of frequency scan antenna in Fig. 1；
Fig. 6 is the far gain peak curve of the simulation calculation of frequency scan antenna in Fig. 1；
Fig. 7 is the half-power beam angular breadth curve of frequency scan antenna in Fig. 1, including simulation calculation and experiment test knot
Fruit；
Fig. 8 is the main lobe direction curve of frequency scan antenna in Fig. 1, including simulation calculation and experimental results.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Before introducing technical solution of the present invention, 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, makes it in the normal direction exponential decay at interface, and
The side for being parallel to interface upwardly propagates.Because microwave surface phasmon has deep sub-wavelength characteristic and Localized field enhancement effect
It answers, 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
Member has non-linear frequency dispersion characteristics, and the phase and frequency of electromagnetic wave are closely bound up, and for the design of frequency scanning antenna, provide can
Energy.Microwave surface phasmon is applied in the design of antenna, can greatly reduce the volume of antenna, improve the property of antenna
Can, it captures many traditional antennas and designs insurmountable technical problem, design a series of new antennas haveing excellent performance.
It referring to Fig.1, is the frequency scan antenna based on microwave surface phasmon provided in the embodiment of the present invention, it is described
The size of frequency scan antenna is 432 × 16.25 × 3.0mm3, from bottom to up include 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 for being located at described 400 one end of central dielectric substrate.
Referring to Fig. 2, the metal unit 500 is etching on the top surface of the central dielectric substrate 400 comprising electrically
The comb teeth-shaped metal structure 510 of connection and unilateral horn-like metal structure 520 of dehiscing, the comb teeth-shaped metal structure 510 are used for
Coupling with conducts microwaves surface phasmon, it is described it is unilateral dehisce horn-like metal structure 520 for radiate microwave surface etc. from
Excimer.Each described unilateral horn-like metal structure 520 of dehiscing is corresponding with multiple 510 positions of comb teeth-shaped metal structure,
And one group of metal unit structure is formed, there is 43 metal unit structures, and equal work on a frequency scan antenna
Make in X-band, the metal unit structure, which etches, to be formed on the top surface of the central dielectric substrate 400.
Referring to Fig. 3,400 part of central dielectric substrate covers the center-point earth plate 300, i.e., the described center-point earth plate
300 size is less than the size of the central dielectric substrate 400, and the bottom dielectric substrate 200 is covered on 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.
Under the premise of determining above-mentioned basic structure, dielectric constant, the damage of antenna are performed a scan according to specific requirement
Consumption and thickness, dielectric constant, loss and the thickness of metal unit substrate, size, arrangement mode of metal unit structure etc..
Referring to Fig. 4, the frequency scan antenna is in X-band S11Respectively less than -10dB.
Referring to Fig. 5 a, the frequency scan antenna is at 8.5,9,9.5,10,10.5,11,11.5,12.0GHz frequencies
Gain simulation result.
Referring to Fig. 5 b, the frequency scan antenna is at 8.5,9,9.5,10,10.5,11,11.5,12.0GHz frequencies
Gain test result.
Referring to Fig. 6, for the frequency scan antenna in 8.5~12.0GHz frequency range, average gain is about 15dB.
Referring to Fig. 7, for the frequency scan antenna in 8.5~12.0GHz frequency range, half-power angle width is about 6 °.
Referring to Fig. 8, for the frequency scan antenna in 8.5~12.0GHz frequency range, scanning angular domain is about -50~50 °, and
The linearity is fine.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (2)
1. a kind of frequency scan antenna based on microwave surface phasmon, which is characterized in that the frequency scan antenna is under
Supreme successively includes that Bottom ground plate, bottom dielectric substrate, center-point earth plate, central dielectric substrate, metal unit and top are situated between
Matter substrate, the metal unit are also electrically connected with the coaxial port for being located at central dielectric substrate one end；The metal list
For member etching on the top surface of the central dielectric substrate, the metal unit includes the comb teeth-shaped metal structure being electrically connected and list
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 of dehiscing is used to radiate microwave surface phasmon, each described unilateral horn-like metal structure of dehiscing
It is corresponding with multiple comb teeth-shaped metal structure positions, and form one group of metal unit structure, a frequency scan antenna
Metal unit structure described in above there are 43 groups, and the metal unit structure works in X-band.
2. frequency scan antenna as described in claim 1, which is characterized in that the center-point earth plate is covered on the center and is situated between
In matter substrate bottom surface, and the size of the center-point earth plate is less than the size of the central dielectric substrate.
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 CN106602246A (en) | 2017-04-26 |
| CN106602246B true CN106602246B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN106602246B (en) |
Families Citing this family (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 |
| 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 |
| CN108321519B (en) * | 2018-02-07 | 2019-09-17 | 南京邮电大学 | Bilateral binary cycle surface phasmon leaky-wave antenna |
| CN108879103B (en) * | 2018-06-28 | 2021-04-20 | 中国人民解放军空军工程大学 | Compact feed network type artificial surface plasmon planar antenna array |
| 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 |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8208191B2 (en) * | 2008-10-30 | 2012-06-26 | Leigh University | Ultra-wide band slow light structure using plasmonic graded grating structures |
| US8842948B2 (en) * | 2012-05-08 | 2014-09-23 | Pinaki Mazumder | Dynamic terahertz switching device comprising sub-wavelength corrugated waveguides and cavity that utilizes resonance and absorption for attaining on and off states |
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2016
- 2016-12-22 CN CN201611196868.9A patent/CN106602246B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN106602246A (en) | 2017-04-26 |
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Granted publication date: 20190405 Termination date: 20211222 |