CN106486729A - Compact closed-loop resonator based on artificial surface phasmon - Google Patents
Compact closed-loop resonator based on artificial surface phasmon Download PDFInfo
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- CN106486729A CN106486729A CN201610865439.XA CN201610865439A CN106486729A CN 106486729 A CN106486729 A CN 106486729A CN 201610865439 A CN201610865439 A CN 201610865439A CN 106486729 A CN106486729 A CN 106486729A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
- H01P7/082—Microstripline resonators
Abstract
The present invention provides a kind of compact closed-loop resonator based on artificial surface phasmon, including an annulus 1 and metal grating 2, metal grating 2 be arranged at annulus 1 on, and one end of metal grating 2 is connected with the inner circle of annulus 1, the other end extends certain length to center of circle direction, and reserves a circular gap around the center of circle.By changing the structural parameters of annulus 1 and metal grating 2, frequency, intensity and the Q-value of each mode of resonance can be adjusted.This resonator electric size very little, resonant intensity is big, has high sensitivity and high resonance quality factor.And this resonator structure, simply it is easy to processing, is scaled by equal proportion, can be operated in Terahertz and microwave, millimeter wave frequency band.
Description
Technical field
The present invention is a kind of toroidal cavity resonator, particularly a kind of compact close loop resonance based on artificial surface phasmon
Device.
Background technology
Surface phasmon is the surface electricity propagated along metal and dielectric surface being formed under the conditions of certain excitation
Magnetic wave, energy of electromagnetic field can be limited in the range of depth sub-wavelength, thus not limited by diffraction limit, in integrated electricity
The aspects such as road, communication technology and sensor have huge application prospect.
But the surface phasmon of nature exists only in optical band, in order to compared with low-frequency range (Terahertz, microwave, in the least
Metric wave) realize surface phasmon, there has been proposed artificial surface etc. is from polariton.Document 1X.P.Shen and
T.J.Cui,“Ultrathin plasmonic metamaterial for spoof localized surface
Plasmons ", Laser Photonics Rev.8,137 (2014), disclose a kind of toroidal cavity resonator, as shown in figure 4, this is humorous
The device that shakes encloses circular, the equidistant periodic arrangement of grating by the grating (3) of one or more, and the inner circle enclosing (4) is real
Heart round metal.Document 2Y.J.Zhou, Q.Z.Xiao, B.J.Yang, Sci.Rep., " Spoof localized surface
plasmons on ultrathin textured MIM ring resonator with enhanced resonances”,
5,14819 (2015), disclose a kind of toroidal cavity resonator, as shown in figure 5, this resonator is enclosed by the grating (3) of one or more
Circular, the equidistant periodic arrangement of grating, the inner circle enclosing (5) is embedded metal ring in open circles, and grating
(6).The resonator of both structures be in the structure between or middle part introduce annulus or disc structure, such surface current
Path is too small, and electric size is larger.
Arrowband or the higher resonance ring structure of quality factor have in microwave and millimeter wave device and antenna, communication system
It is widely applied.Existing artificial surface phasmon resonance structure is usually the annular inner portion formation equivalent electric in structure at present
Stream ring, therefore often electric size is larger, quality factor are relatively low, resonant intensity is weaker.
Content of the invention
It is an object of the invention to provide one kind has higher figure of merit, electric size less compact resonator, should
Resonator can be operated in microwave, millimeter wave and Terahertz frequency range.The present invention can be used for resonator and high sensor etc.
Design.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of compact closed-loop resonator based on artificial surface phasmon, including an annulus (1) and hollow gold
Belong to grating (2), described metal grating (2) includes the grating (21) of one or more, one end of described grating (21) and annulus (1)
Inner circle connects, and the other end points to the center of circle direction of annulus (1), and the grating one end in sensing annulus (1) center of circle surrounds metal grating
(2) hollow circular gap (22).
Further, described metal grating includes the grating of one or more, and described metal grating is along the inner circle circumference of annulus
Periodic arrangement.
Further, by changing the structural parameters of annulus and metal grating, can adjust each mode of resonance frequency,
Intensity and Q-value, described structural parameters include the distance between the interior outer radius of described annulus, described metal grating, length and width
Degree.
Further, described resonator is hanging metal structure;Or described resonator is printing or is etched in substrate
On foil structures.
Beneficial effects of the present invention are:
1st, the electric size very little of the present invention.Existing surface phasmon resonator, usually in the structure between or in
Portion introduces annulus or disc structure, and the path of such surface current is far smaller than the structure outermost that the present invention adopts.
The size of the present invention can reach about a quarter of operation wavelength.
2nd, the resonant intensity of the present invention is big.Under identical physical size, the change of surface current path can make basic mode
The resonant intensity of (dipole) strengthens more than 3dBsm, thus has higher resonance efficiency.This also makes the present invention be applied to
There is when transmission-type device and antenna higher efficiency.
3rd, the present invention has high sensitivity and high resonance quality factor.The dipole of the present invention, level Four and six types of severe debility disease
Q-value be respectively 17.81,146.5 and 634, far above same type existing structure, thus for design high sensor provide
Feasible program.
4th, present configuration is simple and is scaled by equal proportion it is easy to processing, can be operated in Terahertz and microwave, in the least
Meter wave frequency band.
Brief description
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the radar scattering interface simulation result schematic diagram of the present invention;
Fig. 3 is the near field electric field measurement result schematic diagram in resonance frequency 3.2GHz, 5.28GHz, 6.38GHz for the present invention;
Fig. 4 is the ring resonator structure schematic diagram of prior art in document 1;
Fig. 5 is the ring resonator structure schematic diagram of prior art in document 2.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively it is impossible to protection scope of the present invention is limited with this.
As shown in figure 1, a kind of compact closed-loop resonator based on surface plasma, including an annulus 1 and hollow
Metal grating 2, described metal grating 2 includes the grating 21 of one or more, one end of described grating 21 and the inner circle phase of annulus 1
Connect, the other end points to the center of circle direction of annulus 1, and points to the hollow circle that the grating one end in annulus 1 center of circle surrounds metal grating 2
Gap 22 is that is to say, that grating 21 extends certain length to center of circle direction, and reserves near the center of circle between a small circular
Gap forms hollow circular gap 22.Metal grating 2 includes the grating of one or more, and grating is along the inner circle circumference cycle row of annulus 1
Row.
The structural parameters of annulus 1 and metal grating 2 are adjustable, and structural parameters include the interior outer radius of annulus 1, metal grating
The distance between 2, length and width, by changing these parameters, can adjust frequency, intensity and the Q-value of each mode of resonance.
This resonance ring structure can be made up of hanging metal, or by the foil structure being attached on medium substrate
Become.The metal grating 2 being attached on annulus 1 can form effective medium, and forms surface phasmon under incident wave excitation.
When the circumference of device upper surface electric current is equal to the integral multiple of surface wave wavelength, i.e. 2 π rg=λgWhen, you can form resonance.Wherein, rg
For the equivalent redius of surface current, λgFor equivalent surface wave wavelength.
This resonator can be integrated in the filter function realizing high q-factor in planar circuit or free space, or realizes high
The function of the sensor of sensitivity, resonator structure is scaled by equal proportion, can be operated in THz wave, millimeter wave frequency band.
As shown in Fig. 2 resonance frequency is respectively dipole, level Four, six types of severe debility disease from low to high, resonance frequency is respectively
For 3.2GHz, 5.28GHz, 6.34GHz;Resonant intensity is respectively -56.76dBsm, -60.23dBsm, -78.61dBsm;Q-value divides
Not Wei 17.81,146.5,634, the compact closed-loop resonator based on surface plasma for this kind is under 24 millimeters of diameter, even
Extremely sub- resonant frequency can be reduced to 3.2GHz, and resonant intensity can reach -56.76dBsm, and Q-value reaches 17.81, six types of severe debility disease
Resonance quality factor can be up to 634.
As shown in figure 3, under three resonance frequency 3.2GHz, 5.28GHz, 6.38GHz, can be with dipole visible in detail
Son, level Four son and six types of severe debility disease son mode of resonance so that the property of surface phasmon resonator can be complete embodiment.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of compact closed-loop resonator based on artificial surface phasmon it is characterised in that:Including an annulus (1) and
Hollow metal grating (2), described metal grating (2) includes the grating (21) of one or more, one end of described grating (21) with
The inner circle of annulus (1) connects, and the other end points to the center of circle direction of annulus (1), and the grating one end in sensing annulus (1) center of circle surrounds
The hollow circular gap (22) of metal grating (2).
2. as claimed in claim 1 a kind of compact closed-loop resonator based on artificial surface phasmon it is characterised in that:
Described grating is along the inner circle circumference periodic arrangement of annulus (1).
3. as claimed in claim 2 a kind of compact closed-loop resonator based on artificial surface phasmon it is characterised in that:
By changing the structural parameters of annulus (1) and metal grating (2), frequency, intensity and the Q-value of each mode of resonance can be adjusted,
Described structural parameters include the distance between the interior outer radius of described annulus (1), described metal grating (2), length and width.
4. as claimed in claim 1 a kind of compact closed-loop resonator based on artificial surface phasmon it is characterised in that:
Described resonator is hanging metal structure;Or described resonator is printing or is etched in the foil knot on medium substrate
Structure.
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107039722A (en) * | 2017-04-19 | 2017-08-11 | 深圳凌波近场科技有限公司 | A kind of artificial surface plasmon coupling resonance cavity waveguide |
CN108767380A (en) * | 2018-05-15 | 2018-11-06 | 东南大学 | A kind of broadband filter based on artificial local surface phasmon |
CN109085668A (en) * | 2018-08-01 | 2018-12-25 | 中国航空工业集团公司雷华电子技术研究所 | local surface plasma resonator |
CN110165346A (en) * | 2019-04-29 | 2019-08-23 | 东南大学 | A kind of reconfigurable filter based on the artificial local surface phasmon of open loop |
CN110350285A (en) * | 2019-08-29 | 2019-10-18 | 南京信息工程大学 | A kind of artificial local surface phasmon electromagnetism is the same as frequency resonator |
CN110364793A (en) * | 2019-06-13 | 2019-10-22 | 中国人民解放军国防科技大学 | Hybrid SIW and SLSP structure broadband cavity filter |
CN110707409A (en) * | 2019-09-29 | 2020-01-17 | 东南大学 | Hybrid plasmon resonator with high quality factor |
CN112219162A (en) * | 2018-06-08 | 2021-01-12 | 华为技术有限公司 | Optical scanner with optical exchange path to multiple surface or edge couplers |
CN113465633A (en) * | 2021-08-09 | 2021-10-01 | 东南大学 | Microwave resonant sensor for software intelligent detection and frequency shift detection method thereof |
CN113991274A (en) * | 2021-12-24 | 2022-01-28 | 东南大学 | High Q value resonator based on artificial surface plasmon |
CN114460674A (en) * | 2022-01-25 | 2022-05-10 | 南京邮电大学 | Addressable surface plasmon closed-loop control modulation system and method |
WO2023123853A1 (en) * | 2021-12-27 | 2023-07-06 | 东南大学 | On-chip quadrilateral resonator based on spoof surface plasmon polaritons |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107039722A (en) * | 2017-04-19 | 2017-08-11 | 深圳凌波近场科技有限公司 | A kind of artificial surface plasmon coupling resonance cavity waveguide |
CN108767380A (en) * | 2018-05-15 | 2018-11-06 | 东南大学 | A kind of broadband filter based on artificial local surface phasmon |
CN112219162A (en) * | 2018-06-08 | 2021-01-12 | 华为技术有限公司 | Optical scanner with optical exchange path to multiple surface or edge couplers |
CN109085668B (en) * | 2018-08-01 | 2021-04-20 | 中国航空工业集团公司雷华电子技术研究所 | Localized surface plasmon resonator |
CN109085668A (en) * | 2018-08-01 | 2018-12-25 | 中国航空工业集团公司雷华电子技术研究所 | local surface plasma resonator |
CN110165346A (en) * | 2019-04-29 | 2019-08-23 | 东南大学 | A kind of reconfigurable filter based on the artificial local surface phasmon of open loop |
CN110165346B (en) * | 2019-04-29 | 2021-07-27 | 东南大学 | Reconfigurable filter based on open-loop artificial local surface plasmon |
CN110364793A (en) * | 2019-06-13 | 2019-10-22 | 中国人民解放军国防科技大学 | Hybrid SIW and SLSP structure broadband cavity filter |
CN110350285A (en) * | 2019-08-29 | 2019-10-18 | 南京信息工程大学 | A kind of artificial local surface phasmon electromagnetism is the same as frequency resonator |
CN110707409A (en) * | 2019-09-29 | 2020-01-17 | 东南大学 | Hybrid plasmon resonator with high quality factor |
CN113465633A (en) * | 2021-08-09 | 2021-10-01 | 东南大学 | Microwave resonant sensor for software intelligent detection and frequency shift detection method thereof |
CN113465633B (en) * | 2021-08-09 | 2023-01-03 | 东南大学 | Microwave resonant sensor for software intelligent detection and frequency shift detection method thereof |
CN113991274A (en) * | 2021-12-24 | 2022-01-28 | 东南大学 | High Q value resonator based on artificial surface plasmon |
WO2023115820A1 (en) * | 2021-12-24 | 2023-06-29 | 东南大学 | High q-value resonator based on spoof surface plasmons |
WO2023123853A1 (en) * | 2021-12-27 | 2023-07-06 | 东南大学 | On-chip quadrilateral resonator based on spoof surface plasmon polaritons |
CN114460674A (en) * | 2022-01-25 | 2022-05-10 | 南京邮电大学 | Addressable surface plasmon closed-loop control modulation system and method |
CN114460674B (en) * | 2022-01-25 | 2023-11-14 | 南京邮电大学 | Addressable surface plasmon closed-loop control modulation system and method |
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