CN105720379A - Surface plasmon coupler based electromagnetic energy collecting apparatus - Google Patents
Surface plasmon coupler based electromagnetic energy collecting apparatus Download PDFInfo
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- CN105720379A CN105720379A CN201610093120.XA CN201610093120A CN105720379A CN 105720379 A CN105720379 A CN 105720379A CN 201610093120 A CN201610093120 A CN 201610093120A CN 105720379 A CN105720379 A CN 105720379A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
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Abstract
The invention discloses a surface plasmon coupler based electromagnetic energy collecting apparatus. The electromagnetic energy collecting apparatus comprises a dielectric substrate, and a microstrip line and a super surface which are arranged on the upper surface of the dielectric substrate, wherein the super surface is formed by more than one longitudinally-distributed super surface unit with gradient refractive indexes and the same structure; the refractive indexes are decreased in a gradient manner from a direction close to the microstrip line to a direction far from the microstrip line; and the microstrip line is formed by more than one groove-curving metal band. According to the electromagnetic energy collecting apparatus, the efficient coupling of space propagation waves and surface plasmon is realized; the energy of the surface waves is reinforced through superposition of the same-phase surface waves, and the power density of the incident space electromagnetic waves is increased; the same-phase convergence of the surface waves can be reinforced by using multiple groove-curving microstrip lines; an converging effect on the space weak electromagnetic energy is realized; the power density of the incident space electromagnetic waves is increased; and the input power of a rectifying circuit is further increased, so that the rectifying efficiency of the overall system is improved consequently.
Description
Technical field
The present invention relates to a kind of electromagnetic energy collection device, particularly relate to a kind of electromagnetic energy collection device based on surface phasmon bonder, belong to Novel manual electromagnetic material, collection of energy and recovery technology field, be applied to the fields such as Internet of Things, RF identification (RFID) and wireless sensor network (WSN).
Background technology
As two big core technologies of Internet of Things, RF identification (RFID) and wireless sensor network (WSN) have obtained showing great attention to of academia and business circles in the world, and department of national governments also actively pushes forward the development of Internet of Things.The technology of Internet of things such as WSN and RFID have penetrated into every field: such as national defense safety, space exploration, environmental monitoring etc..RFID, WSN Node distribution scope is wide, quantity is many or works in untouchable special environment, and wireless energy supply technology is its life cycle of prolongation, widens the key technology of range of application.The conversion of environment power electromagnetic energy and Collection utilization technology collect the electromagnetic energy of free space, convert DC energy at receiving terminal.There is the features such as power density low (less than-30dBm) and excursion width, frequency band be many in environment electromagnetics energy.When low micropower inputs, the efficiency of rectification circuit can sharply decline (lower than 10%), thus reducing the energy conversion efficiency of whole system.
Novel manual electromagnetic material is research field emerging in electromagnetism, the construction unit of a series of designs be arranged to make up according to certain rule on sub-wavelength dimensions.The constitutive relation of Novel manual electromagnetic material can be changed by changing cellular construction design, provide a great convenience for Artificial Control electromagnetic propagation.Novel manual electromagnetic material obtained significant progress in recent years, is all widely used, is expected to be applied in electromagnetic energy collection system in stealthy, antenna works etc..But the power density of spatial electromagnetic ripple is low at present, not easily realizes efficient electromagnetic energy and collect.
Summary of the invention
It is an object of the invention to present invention aims to the defect that prior art exists, it is provided that a kind of electromagnetic energy collection device based on surface phasmon bonder.
For achieving the above object, the present invention adopts following technical proposals:
A kind of electromagnetic energy collection device based on surface phasmon bonder, including medium substrate, the microstrip line being arranged at medium substrate upper surface and super surface, the refractive index on described super surface reduces near micro-strip alignment away from microstrip line direction gradient；Described microstrip line and super surface are sub-wavelength dimensions.
Further, described super surface is made up of the super surface cell of graded index of more than one genesis analysis；The refractive index of the described super surface cell of each graded index reduces near micro-strip alignment away from microstrip line direction gradient.
Further, the structure of the described super surface cell of each graded index is identical.
Further, the described super surface cell of each graded index forms by the H type construction unit of more than one cross direction profiles, and in the super surface cell of described graded index, the size of each H type construction unit reduces near micro-strip alignment away from microstrip line direction gradient.
Further, described microstrip line is made up of one or more cutting metal tape.
Further, the size of described each cutting metal tape reduces near micro-strip alignment away from microstrip line direction gradient.
The present invention adopts technique scheme, having the beneficial effects that of acquirement:
1, the present invention adopts the super surface of graded index to realize the phase place change of gradual change, it is achieved that the efficient coupling of spatial transmission ripple and surface phasmon.
2, the super surface texture of present invention design size in row arrangement is constant, it is possible to realizes synchronous surface wave superposition further, and then strengthens the energy of surface wave, it is possible to significantly improves the power density of incident spatial electromagnetic ripple.
3, surface wave homophase can be converged and strengthen by a plurality of cutting microstrip line of the present invention, the humble electromagnetic energy in space is played convergence effect, improving the power density of incident spatial electromagnetic ripple, improving the input power of rectification circuit further, thus improving the rectification efficiency of whole system.
Accompanying drawing explanation
Fig. 1 is the top view of embodiments of the invention；
Fig. 2 is the side view of embodiments of the invention；
Fig. 3 is the top view on the super surface of refractive index gradient of the embodiment of the present invention；
Wherein 1-medium substrate, 2-microstrip line, the super surface of 3-, 4-H type structure, 5-is positioned at the earth plate under medium substrate, 6-dielectric thickness, 7-metal thickness, the cycle of 8-H type structure, the height of 9-H type structure, the width of vertical bonding jumper, the width of transverse metal bar in 11-H type structure in 10-H type structure, the height of transverse metal bar in 12-H type structure, the height of vertical bonding jumper in 13-H type structure.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is further elaborated.
Embodiment:
Referring to Fig. 1 and Fig. 2, a kind of electromagnetic energy collection device based on surface phasmon bonder, including medium substrate 1, be arranged at the microstrip line 2 of medium substrate 1 upper surface, super surface 3 and be positioned at medium substrate under earth plate, the refractive index on described super surface 3 near micro-strip alignment away from microstrip line direction gradient reduce；Described microstrip line 2 and super surface 3 are sub-wavelength dimensions.
Further, described super surface 3 is made up of the super surface cell of graded index of more than one genesis analysis；The refractive index of the described super surface cell of each graded index reduces near micro-strip alignment away from microstrip line direction gradient.
Further, the structure of the described super surface cell of each graded index is identical.
Further, the described super surface cell of each graded index forms by the H type construction unit 4 of more than one cross direction profiles, and in the super surface cell of described graded index, the size of each H type construction unit 4 reduces near micro-strip alignment away from microstrip line direction gradient.
Further, described microstrip line 2 is made up of one or more cutting metal tape.
Further, the size of described each cutting metal tape reduces near super table away from super surface direction gradient.
The super surface texture 3 with graded index in the present invention is to be arranged to make up by certain by the H type construction unit 4 of sub-wavelength dimensions, specifically, H type construction unit 4 is expert at, and arrangement is upper to be gradually reduced near micro-strip alignment away from microstrip line direction, along row arrangement above size constancy.By arrangement size gradation distribution of being expert at, it is achieved graded--index planar waveguides, it is possible to convert spatial electromagnetic ripple to surface wave, in row arrangement, design size is constant can realize synchronous surface wave superposition further, and then strengthens the energy of surface wave.Such as Fig. 3, specifically, by 2, vertical and 1 transverse direction bonding jumper is constituted H type construction unit 4.
In the present embodiment, dielectric thickness 6 is 1mm, metal thickness 7 is 0.018mm, the cycle 8 of H type structure is 2.6mm, the height 9 of H type structure is that in 8.4mm, H type structure, the width that width 10 is transverse metal bar in 0.6mm, H type structure 11 of vertical bonding jumper is 1mm, in H type structure the height 12 of transverse metal bar be in 1mm, H type structure the height 13 of vertical bonding jumper for be gradient to 8.4mm from 2mm.
In the present invention, space electromagnetic wave incident is distributed on super surface texture 3 at refractive index gradient, and super surface texture 3 utilizes row arrangement size gradation distribution to realize graded--index planar waveguides, converts spatial electromagnetic ripple to surface wave.Super surface texture 3 design size in row arrangement is constant can realize synchronous surface wave superposition further, and then strengthens the energy of surface wave, it is possible to significantly improve the power density of incident spatial electromagnetic ripple.The microstrip line 2 of a plurality of gradual change cutting metal tape composition is introduced, it is possible to being converged by surface wave homophase and strengthen, improving the input power of rectification circuit further, thus improving the rectification efficiency of whole system in super surface texture 3 front end.The present invention, by overcoming the low not easily efficient collection of energy problem of traditional spatial electromagnetic wave power density, is expected to realize the efficient collection of energy by spatial electromagnetic ripple and convert spendable electric energy to.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (3)
1. the electromagnetic energy collection device based on surface phasmon bonder, it is characterized in that: include medium substrate (1), be arranged at microstrip line (2) and super surface (3) of medium substrate (1) upper surface, the refractive index of described super surface (3) reduces near microstrip line (2) to away from microstrip line (2) direction gradient；The cellular construction of described microstrip line (2) and super surface (3) is sub-wavelength dimensions.
2. the electromagnetic energy collection device of integrated surface phasmon bonder according to claim 1, it is characterised in that: described super surface (3) is made up of the super surface cell of graded index of more than one genesis analysis；The refractive index of the described super surface cell of each graded index reduces near micro-strip alignment away from microstrip line direction gradient.
3. the electromagnetic energy collection device of integrated surface phasmon bonder according to claim 1, it is characterized in that: described microstrip line (2) is made up of one or more cutting metal tape, the size of described each cutting metal tape reduces near super table away from super surface direction gradient.
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| CN201610093120.XA CN105720379A (en) | 2016-02-21 | 2016-02-21 | Surface plasmon coupler based electromagnetic energy collecting apparatus |
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| CN201610093120.XA CN105720379A (en) | 2016-02-21 | 2016-02-21 | Surface plasmon coupler based electromagnetic energy collecting apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229654A (en) * | 2016-08-30 | 2016-12-14 | 上海大学 | Multifrequency high-gain electronically small antenna based on surface phasmon Meta Materials and array |
| WO2018039669A1 (en) * | 2016-08-26 | 2018-03-01 | Fractal Antenna Systems, Inc. | Fractal plasmonic surface reader antennas |
| CN107885403A (en) * | 2017-09-04 | 2018-04-06 | 深圳市尚维高科有限公司 | Touch-screen and touch-screen system based on surface electromagnetic wave |
| CN107885404A (en) * | 2017-09-04 | 2018-04-06 | 深圳市尚维高科有限公司 | Method for detecting position and position sensor based on surface electromagnetic wave |
| WO2019126821A1 (en) * | 2017-12-22 | 2019-06-27 | Fractal Antenna Systems, Inc. | Superconducting wire and waveguides with enhanced critical temperature, incorporating fractal plasmonic surfaces |
| US10740578B2 (en) | 2015-04-08 | 2020-08-11 | Fractal Antenna Systems, Inc. | Fractal plasmonic surface reader |
| CN111628285A (en) * | 2020-06-28 | 2020-09-04 | 北京星英联微波科技有限责任公司 | Phase gradient super-surface antenna unit and antenna |
| CN113328257A (en) * | 2021-05-31 | 2021-08-31 | 湖南汽车工程职业学院 | Super surface electromagnetic energy collection device |
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| CN104852119A (en) * | 2015-04-07 | 2015-08-19 | 上海大学 | Compact broadband slow wave system based on double curved-groove metal grating structures |
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| CN104852119A (en) * | 2015-04-07 | 2015-08-19 | 上海大学 | Compact broadband slow wave system based on double curved-groove metal grating structures |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10740578B2 (en) | 2015-04-08 | 2020-08-11 | Fractal Antenna Systems, Inc. | Fractal plasmonic surface reader |
| WO2018039669A1 (en) * | 2016-08-26 | 2018-03-01 | Fractal Antenna Systems, Inc. | Fractal plasmonic surface reader antennas |
| CN106229654A (en) * | 2016-08-30 | 2016-12-14 | 上海大学 | Multifrequency high-gain electronically small antenna based on surface phasmon Meta Materials and array |
| CN107885403A (en) * | 2017-09-04 | 2018-04-06 | 深圳市尚维高科有限公司 | Touch-screen and touch-screen system based on surface electromagnetic wave |
| CN107885404A (en) * | 2017-09-04 | 2018-04-06 | 深圳市尚维高科有限公司 | Method for detecting position and position sensor based on surface electromagnetic wave |
| CN107885404B (en) * | 2017-09-04 | 2020-10-16 | 深圳市环波科技有限责任公司 | Position detection method based on surface electromagnetic wave and position sensor |
| CN107885403B (en) * | 2017-09-04 | 2024-05-24 | 深圳市环波科技有限责任公司 | Touch screen and touch screen system based on surface electromagnetic waves |
| WO2019126821A1 (en) * | 2017-12-22 | 2019-06-27 | Fractal Antenna Systems, Inc. | Superconducting wire and waveguides with enhanced critical temperature, incorporating fractal plasmonic surfaces |
| CN111628285A (en) * | 2020-06-28 | 2020-09-04 | 北京星英联微波科技有限责任公司 | Phase gradient super-surface antenna unit and antenna |
| CN111628285B (en) * | 2020-06-28 | 2021-01-19 | 北京星英联微波科技有限责任公司 | Phase gradient super-surface antenna unit and antenna |
| CN113328257A (en) * | 2021-05-31 | 2021-08-31 | 湖南汽车工程职业学院 | Super surface electromagnetic energy collection device |
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Application publication date: 20160629 |