CN103036060A - Microwave control switch based on metamaterial - Google Patents
Microwave control switch based on metamaterial Download PDFInfo
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- CN103036060A CN103036060A CN2011103022992A CN201110302299A CN103036060A CN 103036060 A CN103036060 A CN 103036060A CN 2011103022992 A CN2011103022992 A CN 2011103022992A CN 201110302299 A CN201110302299 A CN 201110302299A CN 103036060 A CN103036060 A CN 103036060A
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Abstract
The invention relates to a microwave control switch based on a metamaterial. The microwave control switch comprises a switch controlling module and aerials. The aerials receive outside electromagnetic wave information, process the electromagnetic wave information through the switch controlling module, and reflect the electromagnetic wave information. The microwave control switch further comprises a microwave regulating module. The switch controlling module, the aerials and the microwave regulating module are connected in sequence. The microwave regulating module is arranged in front of the aerials, and metamaterial mediums are used to achieve a refractive index distribution situation inside the microwave regulating module, so that gathering and modulation of electromagnetic signals can be achieved by the microwave regulating module, and therefore microwave energy can be more concentrated, directionality is stronger, the positions of detected objects can be detected accurately, and interference of nearby wireless equipment can be avoided.
Description
Technical field
The present invention relates to the microwave signal control field, relate in particular to a kind of microwave control switch based on super material.
Background technology
Existing microwave control switch carries out work according to Doppler effect: produce a fixing high-frequency signal (being generally 400-800MHz) by oscillating circuit, arrive surrounding space through aerial radiation, when near the certain distance antenna object of which movement being arranged, high-frequency signal will fire back again by antenna reception by the passive movement object, just the frequency of oscillation of former oscillating circuit and signal amplitude change, this variable signal through integration, amplification, relatively wait process after the formation control signal, make the action of control executive circuit, reach the purpose of automatic control.This control switch can be used for the control to burglar alarm or illuminating lamp, but its detecting location and precision all are difficult to control, fail to report or the wrong report situation easily, and can cause near wireless device certain interference.
Summary of the invention
The object of the invention is to overcome existing microwave control switch to surveying position and the unmanageable defective of detection accuracy of thing, a kind of microwave control switch based on super material is provided, this switch can be surveyed the position of thing accurately, near the interference of other wireless devices also getting rid of.
In order to achieve the above object, the following technical scheme of the present invention's employing:
Microwave control switch based on super material, described microwave control switch comprises: switch control module, antenna, the electromagnetic wave information in the described antenna reception external world is processed with through described switch control module and is reflected electromagnetic wave information, described microwave control switch also comprises a microwave modulation module, and described switch control module, antenna and microwave modulation module link to each other successively.
Further, described microwave modulation module is comprised of a plurality of super sheet of material with identical refractive index.
Further, described each super sheet of material forms by a plurality of super material cell.
Further, described super material cell forms by artificial micro-structural and for the unit base material that described artificial micro-structural is adhered to.
Further, the regularity of distribution of size in its super material cell of the artificial micro-structural in described each super sheet of material is: take the center of each super sheet of material as the center of circle, gradually increase along with radius, the size of the artificial micro-structural in the super material cell in place reduces gradually, and the artificial micro-structural in the super material cell at same radius place is measure-alike.
Further, the refraction index profile rule in described each super sheet of material is: take the center of each super sheet of material as the center of circle, along with the gradually increase of radius, refractive index reduces gradually, and the same radius place has identical refractive index value.
Further, described artificial micro-structural is planar structure or the stereochemical structure that electromagnetic wave is comprised of the wire that responds by at least one, and described wire is copper wire or filamentary silver.
Further, described wire is attached on the unit base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Further, described artificial micro-structural is flakes structure or the flakes shape of deriving.
Further, described unit base material is made by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
The present invention is with respect to prior art, has following beneficial effect: a kind of microwave control switch based on super material of the present invention, by a microwave modulation module is set in the antenna front, and adopt super material medium to realize the refraction index profile situation of microwave modulation module inside, so that described microwave modulation module can converge modulation to electromagnetic signal, thereby it is more concentrated to reach microwave energy, directivity is stronger, can survey accurately the position of thing, and avoid the interference of nearby radio equipment.
Description of drawings
Fig. 1 is the structural representation that the present invention is based on the microwave control switch of super material;
Fig. 2 is the structural representation of microwave modulation module of the present invention;
Fig. 3 is the structural representation of super material cell of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Fig. 1 is the structural representation that the present invention is based on the microwave control switch of super material, and this microwave control switch comprises: switch control module 1, antenna 2 and microwave modulation module 3, described switch control module 1, antenna 2 and microwave modulation module 3 link to each other successively.
Switch control module 1 constantly sends signal by antenna 2 to guarded region, signal is concentrated in microwave modulation module 3 and is converged, avoid being subject to the impact of other wireless signals, so that monitoring is more accurate, when the external world changes, signal reflex enters switch control module 1 by antenna 2 in the microwave modulation module 3 to be carried out signal and processes, and makes at last corresponding indication.
Above-mentioned microwave modulation module 3 has the function that electromagnetic wave signal is converged, and realizes that this function is to rely on it to adopt super material medium, and described microwave modulation module 3 is comprised of a plurality of super sheet of material 31 with identical refractive index.Be that each super sheet of material 31 all has the function that electromagnetic wave is converged refraction.
We know, electromagnetic wave is in the Propagation process, always towards the large direction deviation of refractive index, therefore the refraction index profile rule of each super sheet of material 31 inside is: take the center of each super sheet of material 31 as the center of circle, gradually increase along with radius, refractive index reduces gradually, and the refractive index at same radius place is identical.
As shown in Figure 2, described each super sheet of material 31 consists of by a plurality of super material cell 4, described super material cell 4 comprises metal micro structure 402 and the unit base material 401 that adheres to for metal micro structure 402, as shown in Figure 3, by to the topological pattern of artificial micro-structural 402, physical dimension with and the design that distributes at unit base material 401, make the refraction index profile rule of each super sheet of material 31 satisfy center take each super sheet of material 31 as the center of circle, gradually increase along with radius, refractive index reduces gradually, and the refractive index at same radius place is identical.But should know that variations in refractive index of the present invention is not as limit.Purpose of design of the present invention is: when making electromagnetic wave through each super sheet of material 31, the electromagnetic wave deflection angle is changed gradually.By formula S in θ=q Δ n, wherein θ is that the electromagnetic angle of required deviation, Δ n are front and back variations in refractive index differences, and q can determine the desired parameters value and reach purpose of design of the present invention for the thickness of super material function layer and by Computer Simulation.
For making the variation of the above-mentioned refractive index of super sheet of material 31, through theoretical and actual proof, can to the topological structure of described artificial micro-structural 402, physical dimension with and the design that distributes at unit base material 401, unit base material 401 adopts dielectric insulation material to make, can be ceramic material, macromolecular material, ferroelectric material, ferrite material, ferromagnetic material etc., macromolecular material for example can be, epoxy resin or polytetrafluoroethylene.Artificial micro-structural 402 is for to be attached to the metal wire that response can be arranged electromagnetic wave on the unit base material 401 with certain geometry, metal wire can be that section is the copper cash of cylindric or flat, silver line etc., the general copper that adopts, because copper wire is relatively cheap, certainly the section of metal wire also can be other shapes, metal wire is by etching, electroplate, bore and carve, photoetching, electronics carve or ion quarter etc. technique be attached on the substrate, each super material cell 4 all has an artificial micro-structural, each super material cell 4 can produce response to the electromagnetic wave that passes through wherein, thereby affect electromagnetic wave transmission therein, the size of each super material cell depends on the electromagnetic wave of needs response, be generally required response electromagnetic wavelength 1/10th, can not be regarded as in the space continuously otherwise comprise being arranged in that the super material cell 4 of artificial micro-structural 402 forms in the space.
In the selected situation of unit base material 401, the shape by adjusting artificial micro-structural 402, size and can adjust on the super material everywhere effective dielectric constant and equivalent permeability and then the super material of change equivalent refractive index everywhere in the spatial distribution on the unit base material 401.When artificial micro-structural 402 adopted identical geometry, the size of the artificial micro-structural in somewhere was larger, and the effective dielectric constant that then should locate is larger, and refractive index is also larger.
The pattern of the artificial micro-structural 402 that present embodiment adopts is the I-shaped pattern of deriving, the pattern of artificial micro-structural 402 can be two dimension, also can be three-dimensional structure, " worker " font that is not limited to use among this embodiment, can be the derived structure of " worker " font, can be each the orthogonal flakes in bar limit and alabastrine derived structure in three dimensions, it also can be other geometry, wherein different artificial micro-structurals 402 can be that pattern is identical, but its design size is different; Also can be that pattern is all not identical with design size.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not run counter to change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. based on the microwave control switch of super material, described microwave control switch comprises: switch control module, antenna, it is characterized in that described microwave control switch also comprises a microwave modulation module, described switch control module, antenna and microwave modulation module link to each other successively.
2. the microwave control switch based on super material according to claim 1 is characterized in that, described microwave modulation module is comprised of a plurality of super sheet of material with identical refractive index.
3. the microwave control switch based on super material according to claim 2 is characterized in that, described each super sheet of material forms by a plurality of super material cell.
4. the microwave control switch based on super material according to claim 3 is characterized in that, described super material cell forms by artificial micro-structural and for the unit base material that described artificial micro-structural is adhered to.
5. the microwave control switch based on super material according to claim 4, it is characterized in that, the regularity of distribution of size in its super material cell of the artificial micro-structural in described each super sheet of material is: take the center of each super sheet of material as the center of circle, gradually increase along with radius, the size of the artificial micro-structural in the super material cell in place reduces gradually, and the artificial micro-structural in the super material cell at same radius place is measure-alike.
6. the microwave control switch based on super material according to claim 4, it is characterized in that, refraction index profile rule in described each super sheet of material is: take the center of each super sheet of material as the center of circle, gradually increase along with radius, refractive index reduces gradually, and the same radius place has identical refractive index value.
7. the microwave control switch based on super material according to claim 4 is characterized in that, described artificial micro-structural is planar structure or the stereochemical structure that electromagnetic wave is comprised of the wire that responds by at least one, and described wire is copper wire or filamentary silver.
8. the microwave control switch based on super material according to claim 7 is characterized in that, described wire is attached on the unit base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
9. the microwave control switch based on super material according to claim 4 is characterized in that, described artificial micro-structural is flakes structure or the flakes shape of deriving.
10. the microwave control switch based on super material according to claim 4 is characterized in that, described unit base material is made by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103022992A CN103036060A (en) | 2011-09-29 | 2011-09-29 | Microwave control switch based on metamaterial |
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| CN2011103022992A CN103036060A (en) | 2011-09-29 | 2011-09-29 | Microwave control switch based on metamaterial |
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| CN103036060A true CN103036060A (en) | 2013-04-10 |
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| CN2011103022992A Pending CN103036060A (en) | 2011-09-29 | 2011-09-29 | Microwave control switch based on metamaterial |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378583A (en) * | 2018-12-03 | 2019-02-22 | 电子科技大学中山学院 | A kind of improved microwave inductive switch antenna |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
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- 2011-09-29 CN CN2011103022992A patent/CN103036060A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378583A (en) * | 2018-12-03 | 2019-02-22 | 电子科技大学中山学院 | A kind of improved microwave inductive switch antenna |
| CN109378583B (en) * | 2018-12-03 | 2022-11-25 | 电子科技大学中山学院 | Improved microwave induction switch antenna |
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Application publication date: 20130410 |
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