CN104021817A - Dynamic tunable absorber based on coherent control - Google Patents
Dynamic tunable absorber based on coherent control Download PDFInfo
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- CN104021817A CN104021817A CN201410246834.0A CN201410246834A CN104021817A CN 104021817 A CN104021817 A CN 104021817A CN 201410246834 A CN201410246834 A CN 201410246834A CN 104021817 A CN104021817 A CN 104021817A
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Abstract
The invention belongs to the field of electromagnetic waves and novel artificial electromagnetic materials, and particularly relates to a dynamic tunable absorber based on coherent control and used for perfect electromagnetic wave absorption. The dynamic tunable absorber based on coherent control is composed of a dielectric layer and artificial electromagnetic material layers, wherein the artificial electromagnetic material layers are located on the two sides of the dielectric layer and are both etched on the substrate of the dielectric layer. Each artificial electromagnetic material layer is of an asymmetrical split ring structure where artificial electromagnetic materials are arranged in a periodic or aperiodic mode, wherein the asymmetrical split ring structure is formed by two metal wires or arcs in different lengths. According to the dynamic tunable absorber, operation is easy, the absorption band of the absorber can be adjusted by regulating and controlling the phase of the wave and the structure, dimension parameters and material attribute of the novel artificial electromagnetic material, and then selective absorption of electromagnetic waves in a specific frequency can be achieved. The dynamic tunable absorber also has the advantages of being portable, light, easy to integrate and the like.
Description
Technical field
The invention belongs to electromagnetic wave and novel artificial electromagnetic material field, be specifically related to a kind of for the perfect dynamic-tuning absorber based on relevant control absorbing of electromagnetic wave.
Background technology
Inhaling wave technology is mainly a class material that utilizes absorbing material effectively to absorb incident electromagnetic wave and make its scatter attenuation, incident electromagnetic wave is changed into heat energy to its various loss mechanism by material or other form of energy reaches electromagnetic wave absorption object, wherein, perfect absorber is widely used in the fields such as photo-detector, spectral imaging and bolograph.The appearance of novel artificial electromagnetic material, has enriched the research contents in electromagnetism field, also for realizing various new microwave device, micro-nano device provides opportunity.
Novel artificial electromagnetic material is the Composite Media that utilizes the artificial design of natural conventional material, and the yardstick of its structural unit, in sub-wavelength magnitude, can be realized the unexistent electromagnetic property of natural material, as negative refraction, perfect lens, stealthy cape etc.The research contents that novel artificial electromagnetic material has greatly enriched electromagnetism field, realizes several functions device, as perfect absorber, polarizer, wave filter and modulator etc.Absorber based on novel artificial electromagnetic material, because structure is ultra-thin, can be realized the perfection absorption of incident electromagnetic wave has been caused to researchist's extensive concern.2008, American Studies personnel N.I.Landy has proposed the concept of the perfect absorber based on novel artificial electromagnetic material, utilize three-decker, by reasonable design structural parameters, make this structure neither produce reflection to the electromagnetic wave of characteristic frequency and also do not produce transmission, realized electromagnetic perfect absorption of single-frequency.After this, researchist has designed the perfect absorber of multiple different structure, and research frequency range expands to THz frequency range, near infrared frequency range, visible light frequency band from microwave section.Optical band absorber based on novel artificial electromagnetic material, thickness is about 1/15 of resonance wavelength, has experimentally realized 88% absorptivity.Tao etc. have designed the meta-material absorber of THz frequency range, and at 1.3THz place, absorptivity is about 70%.At present, increasing research work concentrates on multifrequency and wideband meta-material absorber.Zhang has proposed a kind of THz frequency band double-frequency absorber based on electric resonance ring structure, and it has high-absorbility at 0.45THz and 0.92THz.A kind of three frequency absorbers based on opening resonance loop structure of Shen design, can be at 4.06GHz, and 6.73GHz and 9.22GHz realize respectively 99%, 93% and 95% high-absorbility.The unitized construction of multilayer resonant ring of utilizing Cummer has realized the wideband absorber that relative bandwidth is 6.1%.
The above-described perfect absorber based on novel artificial electromagnetic material, all cannot realize the dynamic regulation of absorptivity, and has fixing frequency of operation, cannot realize the switching of frequency of operation.Based on the relevant electromagnetic wave perfect absorbing structure of controlling, it is the resonance characteristic of utilizing novel artificial electromagnetic material, parameter by regulon and coherent wave realizes electromagnetic zero reflection and zero transmission, thereby realize, the electromagnetic selectivity of characteristic frequency is absorbed, and can dynamically control electromagnetic absorptivity.Utilize the tunable absorber of coherence than traditional material, make simple, easy to operate, cost and significantly reduce, can dynamically control absorptivity and switch operating frequency, there is very large potential using value.
Summary of the invention
The object of this invention is to provide a kind of traditional material, make simple, easy to operate, cost significantly based on the relevant dynamic-tuning absorber of controlling.
The object of the present invention is achieved like this:
Based on the relevant dynamic-tuning absorber of controlling, by dielectric layer and artificial electromagnetic material layer, formed, artificial electromagnetic material layer is positioned at the both sides of dielectric layer, be etched in respectively in the substrate of dielectric layer, for artificial electromagnetic material is the asymmetric openings ring structure unit of arranging cycle or non-periodic, metal wire or arc that asymmetric openings ring structure is not waited by two length form, and asymmetric openings ring structure comprises 2 sections of not isometric metal wires or arc.
Asymmetric openings ring structure thickness is micron or hundred nanometer scale, and cellular construction is metal material; The material of the substrate of dielectric layer is PCB material, semiconductor material, glass, and thickness is millimeter or hundred micron dimensions.
Substrate thickness is 1.6 millimeters, material is PCB, DIELECTRIC CONSTANT ε=4.05-0.05i, each artificial electromagnetic material unit is of a size of 15 millimeters * 15 millimeters, the material of metal arc is copper, and the angle that metal arc is corresponding is α=140 degree and β=160 degree, internal diameter r=5.6 millimeter, external diameter R=6.4 millimeter, thickness t=35 micron.
Beneficial effect of the present invention is:
The present invention makes simply, easy to process.Utilize ripe PCB process technology or micro-nano process technology can complete processing of the present invention.Traditional absorbing material needs complicated operation, and expensive.The present invention has selectivity absorption characteristic, and this structure can realize the electromagnetic selectivity of characteristic frequency is absorbed, and in fields such as radar invisible, imaging and survey radiation gauges, all has more wide application prospect.The present invention is simple to operate, and by regulating the phase place of control wave,, structure, dimensional parameters and the material properties of novel artificial electromagnetic material, absorption band that just can regulating absorber, realizes the electromagnetic selectivity absorption to characteristic frequency.That the present invention has is simultaneously portable, lightweight, the easy advantage such as integrated, more traditional absorbing material, and the present invention is only individual layer, thickness is little, lightweight, it is conformal to be easy to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the basic structural unit based on the relevant dynamic-tuning absorber of controlling.
Fig. 2 is view before and after the basic structural unit based on the relevant dynamic-tuning absorber of controlling.
Fig. 3 is the fundamental diagram based on the relevant dynamic-tuning absorber of controlling.
When Fig. 4 is the dynamic-tuning absorber work based on relevant control, the simulation result when phase differential of control wave and signal wave is 0 degree (solid line) and 180 degree (dotted line).
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
In figure: 1. substrate, 2. metal arc, 3. metal arc, 4. signal wave, 5. control wave.
Based on a relevant dynamic-tuning absorber of controlling, belong to electromagnetic wave and novel artificial electromagnetic material field.The invention discloses a kind of dynamic-tuning absorber based on relevant control, it is characterized in that, adopt double-deck novel artificial electromagnetic material, in a plurality of frequency ranges, realized electromagnetic dynamic-tuning is absorbed.Described relevant control is inhaled ripple device and is comprised dielectric layer and two novel artificial layer of electro-magnetic material, two novel artificial layer of electro-magnetic material are positioned at the both sides of dielectric layer, the asymmetric openings ring structure that wherein novel artificial electromagnetic material is periodic arrangement, the metal arc that each asymmetric openings ring structure is not waited by two length forms, and novel artificial electromagnetic material is sub-wavelength structure.Described dynamic-tuning absorbs and is completed by two bundle coherent waves, be signal wave and control wave, there is identical amplitude and wavelength, along propagating in opposite directions perpendicular to the direction of novel artificial electromagnetic material, by regulating the phase differential between control wave and signal wave, can realize the dynamic-tuning of multiband electro-magnetic wave absorption and control.Of the present invention simple based on the relevant dynamic-tuning absorber manufacture craft of controlling, cost is low, is applicable to each frequency range, in fields such as microwave device, stealthy, light absorbers, has very large application prospect.
Based on a relevant novel artificial electromagnetic material dynamic-tuning absorber of controlling, adopt double-deck novel artificial electromagnetic material, in a plurality of frequency ranges, realized electromagnetic dynamic-tuning has been absorbed.Described relevant control is inhaled ripple device and is comprised dielectric layer and two novel artificial layer of electro-magnetic material, two novel artificial layer of electro-magnetic material are positioned at the both sides of dielectric layer, wherein novel artificial electromagnetic material is the asymmetric openings ring basic structural unit of arranging periodicity or non-periodic, metal wire or arc that each asymmetric openings ring structure is not waited by two length form, novel artificial electromagnetic material is sub-wavelength structure, has interlayer structure rotation angle.Described dynamic-tuning absorbs and is completed by two bundle coherent waves, be signal wave and control wave, there is identical amplitude and wavelength, along propagating in opposite directions perpendicular to the direction of novel artificial electromagnetic material, by regulating the phase differential between control wave and signal wave, can realize the dynamic-tuning of multiband electro-magnetic wave absorption and control.Two novel artificial layer of electro-magnetic material are etched in respectively substrate both sides, are cycle or aperiodic structure.The structural unit of two novel artificial layer of electro-magnetic material is identical, and interlayer exists any rotation angle.The basic structural unit right and wrong of novel artificial electromagnetic material are symmetric, and the basic structural unit of every layer of novel artificial electromagnetic material comprises 2 sections of not isometric metal wires or arc.The basic structural unit thickness of novel artificial electromagnetic material is micron or hundred nanometer scale, and cellular construction is metal material, can be gold, silver, aluminium or copper etc.The base material of novel artificial electromagnetic material is PCB material, semiconductor material, glass etc., and thickness is millimeter or hundred micron dimensions.Signal wave and control wave have identical wavelength and amplitude, propagate in opposite directions, incide the both sides of novel artificial electromagnetic material.The relevant interaction of controlling by signal wave and control wave realizes, the coherent wave that two bundles are propagated in opposite directions forms standing wave, regulate the phase place of control wave, be the node of dynamic regulation novel artificial material and standing wave, the interaction between antinode, complete the perfect relevant control absorbing of multiband electromagnetic wave, realize dynamic-tuning absorber.
The object of the invention is to utilize the resonance characteristic of novel artificial electromagnetic material, provide a kind of based on the relevant dynamic-tuning absorber of controlling.This electromagnetic wave absorber can absorb the electromagnetic selectivity of different frequency, and respond well.Based on the relevant dynamic-tuning absorber of controlling, by novel artificial electromagnetic material cellular construction, formed, have that processing is simple, cost is low, a thin thickness, the feature such as lightweight, be easy to and conformal by stealthy object, therefore there is very high practical value.
For achieving the above object, the technical solution used in the present invention is a kind of based on the relevant dynamic-tuning absorber of controlling, and it is comprised of double-deck manual electromagnetic structure.A branch of signal wave impinges perpendicularly on novel artificial electromagnetic material with certain wavelength, another bundle and signal wave be the control wave of coherent wave each other, with same amplitude and wavelength, propagate in opposite directions, by changing the phase place of control wave and structure, dimensional parameters and the material properties of novel artificial electromagnetic material, can realize the selectivity of set specific frequency signal ripple is absorbed.
Based on the relevant dynamic-tuning absorber of controlling, comprise substrate and double-deck novel artificial electromagnetic material, substrate, between double-deck novel artificial electromagnetic material, carrys out supporting double-layer novel artificial electromagnetic material as substrate or the wall of double-layer artificial electromagnetic material; Every layer of novel artificial electromagnetic material consists of the novel artificial electromagnetic material elementary cell of periodic arrangement, two-layer basic cell structure is identical, but have structure rotation angle, elementary cell exists the asymmetry of structure, there is not polarization polarization and cross polarization transmission in this structure.Every layer of split ring structural unit consists of metal wire or the arc of two sections of certain lengths, and split ring periodic structure is etched in substrate both sides, and carries out periodic extension along X and Y-direction.The material of the metal arc of described novel artificial electromagnetic material can be gold, silver, aluminium, copper etc.The substrate of described novel artificial electromagnetic material adopts PCB material, semiconductor material, glass etc. conventionally, and thickness is millimeter or hundred micron dimensions.
In signal direction of wave travel, measure by the signal wave of novel artificial electromagnetic material, obtain the absorptivity of novel artificial electromagnetic material.In the situation that there is no novel artificial electromagnetic material, the signal wave of propagating in opposite directions and control wave form standing wave.A signal source provides certain wavelength signals ripple, vertically to novel artificial electromagnetic material, propagates, and another control source provides control wave, and this ripple and signal wave be coherent wave each other, and its amplitude is all identical with signal wave with wavelength.If novel artificial electromagnetic material is placed on to node or the anti-node location of standing wave, i.e. the phase phasic difference of signal wave and control wave is 0 degree and 180 degree.By regulating the phase place of control wave, carry out the phase differential between signalization ripple and control wave two bundle electromagnetic waves, be equivalent to converting between the node of the standing wave that the locus of novel artificial electromagnetic material can form at signal wave and control wave and antinode, realize the dynamic regulation that different frequency signals ripple absorbs, can reach the perfect effect absorbing of multiband.
This absorber is easily manufactured, thin thickness, lightweight, be easy to conformally, can realize perfect selectivity to the electromagnetic wave of specific wavelength and absorb, in fields such as radar invisible, imagings, there is important application prospect.
Embodiment 1:
The present embodiment double-deck split ring structure 2,3 and substrate 1 as shown in Figure 1 forms, double-deck split ring is periodically arranged in substrate both sides, substrate thickness is 1.6 millimeters, material is PCB, its DIELECTRIC CONSTANT ε=4.05-0.05i, each novel artificial electromagnetic material unit is of a size of 15 millimeters * 15 millimeters.As shown in Figure 2, structure shown in Fig. 1 is the mutual Rotate 180 degree of the split ring of substrate both sides, and along X and periodically continuation of Y-direction, forming double-deck split ring array, the split ring of each side is all to consist of the different metal arc 2,3 of two segment length, the material of metal arc is copper, corresponding angle is respectively α=140 degree and β=160 degree, its internal diameter r=5.6 millimeter, external diameter R=6.4 millimeter, thickness t=35 micron, double-deck split ring is periodically etched in substrate both sides.
3 further illustrate embodiment by reference to the accompanying drawings more below, first, for the relevant dynamic-tuning absorber of controlling arranges an XYZ coordinate axle as workbench, Z axis is perpendicular to the surface of dynamic-tuning absorber.Two bundle ripples are signal wave 4 and control wave 5, are launched respectively by signal source and control source.Signal wave and control wave are coherent wave, have identical wavelength and amplitude, and E field polarization direction is directions X, frequency range is set as 4-10GHz, and pass through in opposite directions novel artificial electromagnetic material along Z-direction, with double-deck split ring structural interaction, electromagnetic wave presents zero transmission and zero reflection.According to absorptivity=1-reflectivity-transmissivity, this absorber reaches perfect wave-absorbing effect.
In the novel artificial electromagnetic material situation of not placing, control wave and signal wave interference form standing wave.When novel artificial electromagnetic material is placed on to node or anti-node location, i.e. the phase phasic difference 0 of signal wave and control wave degree and 180 degree, the strong signal wave propagation that affects is understood in novel artificial electromagnetic material unit, can absorb the electromagnetic wave of some frequency completely.The phase place that regulates control wave, makes two bundle ripples produce different phase differential, and experimental result shows, when phase differential is 0 while spending, as shown in Fig. 4 solid line, in 5.37GHz place absorptivity, is 98.84%; When phase differential is 180 while spending, as shown in Fig. 4 dotted line, at 4.95GHz and 5.84GHz place absorptivity, be respectively 97.53% and 90.50%, as can be seen here, by the control of control wave phase place, can convert the frequency of operation of absorber, optionally absorb, the absorptivity of 3 frequency bands, all over 90%, reaches the nearly perfect effect absorbing, thereby realized based on the electromagnetic selectivity of the relevant different frequency of controlling, absorbs.By changing absorber structure, dimensional parameters and material properties, can realize the electromagnetic selectivity of any setpoint frequency is absorbed, and respond well.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention, should be understood to that the protection domain of invention is not limited to such special statement and embodiment.Everyly according to foregoing description, make various possible being equal to and replace or change, be all considered to belong to the protection domain of claim of the present invention.
Claims (3)
1. one kind based on the relevant dynamic-tuning absorber of controlling, by dielectric layer and artificial electromagnetic material layer, formed, it is characterized in that: artificial electromagnetic material layer is positioned at the both sides of dielectric layer, be etched in respectively in the substrate of dielectric layer, for artificial electromagnetic material is the asymmetric openings ring structure unit of arranging cycle or non-periodic, metal wire or arc that asymmetric openings ring structure is not waited by two length form, and asymmetric openings ring structure comprises 2 sections of not isometric metal wires or arc.
2. according to claim 1 a kind of based on the relevant dynamic-tuning absorber of controlling, it is characterized in that: described asymmetric openings ring structure thickness is micron or hundred nanometer scale, and cellular construction is metal material; The material of the substrate of dielectric layer is PCB material, semiconductor material, glass, and thickness is millimeter or hundred micron dimensions.
3. according to claim 1 a kind of based on the relevant dynamic-tuning absorber of controlling, it is characterized in that: described substrate thickness is 1.6 millimeters, material is PCB, DIELECTRIC CONSTANT ε=4.05-0.05i, each artificial electromagnetic material unit is of a size of 15 millimeters * 15 millimeters, and the material of metal arc is copper, the angle that metal arc is corresponding is α=140 degree and β=160 degree, internal diameter r=5.6 millimeter, external diameter R=6.4 millimeter, thickness t=35 micron.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116489A (en) * | 2015-09-15 | 2015-12-02 | 中国计量学院 | Metamaterial waveguide structure high Q (quality) resonance device of asymmetric split rings |
| CN106911007A (en) * | 2017-03-16 | 2017-06-30 | 西安电子科技大学 | The multi-layer metamaterial surface texture of wave transparent angle is selected for multi-band frequency |
| CN107317119A (en) * | 2017-06-16 | 2017-11-03 | 哈尔滨工程大学 | It is a kind of to polarize the relevant absorption device of controllable multiband Meta Materials |
| CN107356999A (en) * | 2017-06-26 | 2017-11-17 | 陕西师范大学 | A kind of single layer nanometer structure for realizing long-wave band asymmetric transmission and preparation method thereof |
| CN107942419A (en) * | 2018-01-08 | 2018-04-20 | 大连大学 | The resonant wavelength tuner and method of more metal nano circular ring structures based on Broken Symmetry |
| CN110376667A (en) * | 2019-07-25 | 2019-10-25 | 江西师范大学 | A kind of broadband electromagnetic wave absorber and preparation method thereof based on refractory material |
| CN113346249A (en) * | 2021-06-10 | 2021-09-03 | 西安电子科技大学 | Water-based interlayer super-surface adjustable coherent wave absorber |
| CN115911881A (en) * | 2023-02-23 | 2023-04-04 | 天津大学 | Flexible modulable terahertz filter based on all-dielectric material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540207A (en) * | 2009-04-15 | 2009-09-23 | 电子科技大学 | Slab wave-absorbing material |
-
2014
- 2014-06-05 CN CN201410246834.0A patent/CN104021817A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540207A (en) * | 2009-04-15 | 2009-09-23 | 电子科技大学 | Slab wave-absorbing material |
Non-Patent Citations (4)
| Title |
|---|
| JIANFA ZHANG 等: "Controlling light-with-light without nonlinearity", 《LIGHT: SCIENCE & APPLICATIONS》 * |
| JINHUI SHI 等: "Engineering electromagnetic responses of bilayered metamaterials based on Fano resonances", 《APPLIED PHYSICS LETTERS》 * |
| SEYEDMOHAMMAD A. MOUSAVI 等: "Coherent control of optical activity and optical anisotropy of thin metamaterials", 《ARXIV:1312.0414[PHYSICS.OPTICS]》 * |
| 史金辉 等: "非对称结构平面电磁超材料的微波特性研究", 《应用科学学报》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116489B (en) * | 2015-09-15 | 2018-08-21 | 中国计量学院 | A kind of high Q resonance device of asymmetric openings ring Meta Materials waveguiding structure |
| CN105116489A (en) * | 2015-09-15 | 2015-12-02 | 中国计量学院 | Metamaterial waveguide structure high Q (quality) resonance device of asymmetric split rings |
| CN106911007A (en) * | 2017-03-16 | 2017-06-30 | 西安电子科技大学 | The multi-layer metamaterial surface texture of wave transparent angle is selected for multi-band frequency |
| CN106911007B (en) * | 2017-03-16 | 2019-04-23 | 西安电子科技大学 | Multi-layer metamaterial surface texture for multi-band frequency selection wave transparent angle |
| CN107317119A (en) * | 2017-06-16 | 2017-11-03 | 哈尔滨工程大学 | It is a kind of to polarize the relevant absorption device of controllable multiband Meta Materials |
| CN107356999A (en) * | 2017-06-26 | 2017-11-17 | 陕西师范大学 | A kind of single layer nanometer structure for realizing long-wave band asymmetric transmission and preparation method thereof |
| CN107356999B (en) * | 2017-06-26 | 2020-03-24 | 陕西师范大学 | Single-layer nano structure for realizing long-wave band asymmetric transmission and preparation method thereof |
| CN107942419A (en) * | 2018-01-08 | 2018-04-20 | 大连大学 | The resonant wavelength tuner and method of more metal nano circular ring structures based on Broken Symmetry |
| CN107942419B (en) * | 2018-01-08 | 2020-04-03 | 大连大学 | Resonance wavelength tuner and method based on symmetry-breaking multi-metal nano ring structure |
| CN110376667A (en) * | 2019-07-25 | 2019-10-25 | 江西师范大学 | A kind of broadband electromagnetic wave absorber and preparation method thereof based on refractory material |
| CN110376667B (en) * | 2019-07-25 | 2022-07-26 | 江西师范大学 | Broadband electromagnetic wave absorber based on refractory material and preparation method thereof |
| CN113346249A (en) * | 2021-06-10 | 2021-09-03 | 西安电子科技大学 | Water-based interlayer super-surface adjustable coherent wave absorber |
| CN115911881A (en) * | 2023-02-23 | 2023-04-04 | 天津大学 | Flexible modulable terahertz filter based on all-dielectric material |
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