CN103036060A - Microwave control switch based on metamaterial - Google Patents

Abstract

Translated fromChinese

本发明涉及一种基于超材料的微波控制开关，该微波控制开关包括：开关控制模块、天线，所述天线接收外界的电磁波信息经过所述开关控制模块进行处理以并反映电磁波信息，所述微波控制开关还包括一微波调制模块，所述开关控制模块、天线以及微波调制模块依次相连。本发明一种基于超材料的微波控制开关，通过在天线前面设置一微波调制模块，并采用超材料介质来实现微波调制模块内部的折射率分布情况，使得所述微波调制模块能够对电磁信号进行汇聚调制，从而达到微波能量更加集中，方向性更强，能够精确的探测探测物的位置，且避免了附近无线电设备的干扰。

The invention relates to a microwave control switch based on metamaterials. The microwave control switch includes: a switch control module and an antenna. The antenna receives external electromagnetic wave information and processes it through the switch control module to reflect the electromagnetic wave information. The microwave The control switch further includes a microwave modulation module, and the switch control module, the antenna and the microwave modulation module are connected in sequence. The present invention is a metamaterial-based microwave control switch. By setting a microwave modulation module in front of the antenna and using a metamaterial medium to realize the distribution of the refractive index inside the microwave modulation module, the microwave modulation module can perform electromagnetic signals. Convergence modulation, so that the microwave energy is more concentrated, the directionality is stronger, the position of the detection object can be accurately detected, and the interference of nearby radio equipment is avoided.

Description

Microwave control switch based on super material

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 andmicrowave modulation module 3, described switch control module 1, antenna 2 andmicrowave modulation module 3 link to each other successively.

Switch control module 1 constantly sends signal by antenna 2 to guarded region, signal is concentrated inmicrowave 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 themicrowave modulation module 3 to be carried out signal and processes, and makes at last corresponding indication.

Above-mentionedmicrowave 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 describedmicrowave modulation module 3 is comprised of a plurality of super sheet ofmaterial 31 with identical refractive index.Be that each super sheet ofmaterial 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 ofmaterial 31 inside is: take the center of each super sheet ofmaterial 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 ofmaterial 31 consists of by a plurality ofsuper material cell 4, describedsuper material cell 4 comprises metalmicro structure 402 and theunit base material 401 that adheres to for metalmicro 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 atunit base material 401, make the refraction index profile rule of each super sheet ofmaterial 31 satisfy center take each super sheet ofmaterial 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 ofmaterial 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 ofmaterial 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 atunit 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 theunit 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, eachsuper material cell 4 all has an artificial micro-structural, eachsuper 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 supermaterial cell 4 of artificial micro-structural 402 forms in the space.

In the selected situation ofunit 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)

Translated fromChinese

1.基于超材料的微波控制开关，所述微波控制开关包括：开关控制模块、天线，其特征在于，所述微波控制开关还包括一微波调制模块，所述开关控制模块、天线以及微波调制模块依次相连。1. Based on the microwave control switch of metamaterial, 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 connected in turn.2.根据权利要求1所述的基于超材料的微波控制开关，其特征在于，所述微波调制模块由多个具有相同折射率的超材料片层组成。2. The metamaterial-based microwave control switch according to claim 1, wherein the microwave modulation module is composed of a plurality of metamaterial sheets with the same refractive index.3.根据权利要求2所述的基于超材料的微波控制开关，其特征在于，所述每一超材料片层均由多个超材料单元组成。3. The metamaterial-based microwave control switch according to claim 2, wherein each metamaterial sheet is composed of a plurality of metamaterial units.4.根据权利要求3所述的基于超材料的微波控制开关，其特征在于，所述超材料单元由人造微结构以及供所述人造微结构附着的单元基材组成。4. The metamaterial-based microwave control switch according to claim 3, wherein the metamaterial unit is composed of an artificial microstructure and a unit substrate for the artificial microstructure to attach to.5.根据权利要求4所述的基于超材料的微波控制开关，其特征在于，所述每一超材料片层内的人造微结构的尺寸在其超材料单元内的分布规律为：以每一超材料片层的中心为圆心，随着半径的逐渐增加，所在超材料单元内的人造微结构的尺寸逐渐减小，且相同半径处的超材料单元内的人造微结构的尺寸相同。5. the microwave control switch based on metamaterial according to claim 4, is characterized in that, the distribution law of the size of the artificial microstructure in its metamaterial unit in each metamaterial sheet layer is: with each The center of the metamaterial sheet is the center of the circle. As the radius gradually increases, the size of the artificial microstructure in the metamaterial unit decreases gradually, and the size of the artificial microstructure in the metamaterial unit at the same radius is the same.6.根据权利要求4所述的基于超材料的微波控制开关，其特征在于，所述每一超材料片层内的折射率分布规律为：以每一超材料片层的中心为圆心，随着半径的逐渐增加，折射率逐渐减小，且相同半径处具有相同的折射率值。6. The microwave control switch based on metamaterials according to claim 4, characterized in that, the refractive index distribution rule in each metamaterial sheet is: taking the center of each metamaterial sheet as the center of circle, with As the radius gradually increases, the refractive index gradually decreases, and the same radius has the same refractive index value.7.根据权利要求4所述的基于超材料的微波控制开关，其特征在于，所述人造微结构为由至少一根对电磁波有响应的金属丝组成的平面结构或立体结构，所述金属丝为铜丝或银丝。7. The microwave control switch based on metamaterial according to claim 4, characterized in that, the artificial microstructure is a planar structure or a three-dimensional structure composed of at least one metal wire responsive to electromagnetic waves, and the metal wire copper or silver wire.8.根据权利要求7所述的基于超材料的微波控制开关，其特征在于，所述金属丝通过蚀刻、电镀、钻刻、光刻、电子刻或离子刻的方法附着在单元基材上。8 . The metamaterial-based microwave control switch according to claim 7 , wherein the metal wire is attached to the unit base material by etching, electroplating, drilling, photolithography, electron etching or ion etching.9.根据权利要求4所述的基于超材料的微波控制开关，其特征在于，所述人造微结构为雪花状结构或雪花状衍生状。9 . The metamaterial-based microwave control switch according to claim 4 , wherein the artificial microstructure is a snowflake-like structure or a snowflake-like derivative.10.根据权利要求4所述的基于超材料的微波控制开关，其特征在于，所述单元基材由陶瓷材料、环氧树脂、聚四氟乙烯、FR-4复合材料或F4B复合材料制得。10. The microwave control switch based on metamaterial according to claim 4, characterized in that, the unit substrate is made of ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material .

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