CN106849379A - Electromagnetic energy based on wide-band and wave-absorbing device is collected, stored and electric supply installation - Google Patents
Electromagnetic energy based on wide-band and wave-absorbing device is collected, stored and electric supply installation Download PDFInfo
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- CN106849379A CN106849379A CN201710152264.2A CN201710152264A CN106849379A CN 106849379 A CN106849379 A CN 106849379A CN 201710152264 A CN201710152264 A CN 201710152264A CN 106849379 A CN106849379 A CN 106849379A
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Classifications
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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
- H01Q17/008—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with a particular shape
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
Abstract
The invention discloses the electromagnetic energy collection based on wide-band and wave-absorbing device, storage and electric supply installation, received including electromagnetic energy and feeding network module, circuit impedance is matched and filtration module, rectification module, from power DC DC boost modules and energy storage module, electromagnetic energy receives the output end connection circuit impedance matching and the input of filtration module with feeding network module, the output end of impedance matching and filtration module connects the input of rectification module, the output end of rectification module is connected from power DC DC boost modules, the output end of boost module connects the power input of energy storage module, the electromagnetic energy is received and feeding network module includes wide-band and wave-absorbing device.The spatial electromagnetic ripple that the present invention is received by high-selenium corn efficiency broadband electromagnetic energy receiver change the electric energy that comes through over commutation, filter AC energy be converted into direct current energy, then by power storage in accumulator (super capacitor), there is provided a kind of passive energy storage device that can be worked for a long time.
Description
Technical field
The invention belongs to wireless communication technology and renewable sources of energy collection technique crossing domain, it is related to a kind of electromagnetic energy to receive
Collection, storage and electric supply installation (device), more particularly to collection of energy from radio broadcasting frequency range to millimeter wave frequency band, storage and supply
Electric installation (device).
Background technology
Energy problem has become one of key issue of restriction development of world economy.Solve doing at all for energy problem
Method is the novel renewable energy for developing environment-friendly type.At present the regenerative resource of developer have solar energy, vibrational energy,
Wind energy, temperature difference heat energy etc., but these energy often respectively have advantage and disadvantage, and what is had is limited by natural conditions such as weathers and cannot be continued
Stably energy supply.For example, the use of photovoltaic equipment is related to natural environment, and solar energy cannot be gathered in rainy season
Amount.And electromagnetic energy entrained during radio propagation in space, come from mobile communication base station, the broadcast in space environment
Television tower, various wireless telecommunications systems etc., being capable of round-the-clock radiated electromagnetic energy.Also, in current information-intensive society, the letter of people
Breath activity makes our surrounding spaces there are a large amount of radio waves, the usage quantity of Wireless Telecom Equipment in industry and human lives
Sharply increase, the radio wave of each frequency range increasingly enriches in space on the earth, and global people are all in difference
Among the abundant electromagnetic energy of frequency and different capacity is surrounded.Therefore, the wireless electromagnetic energy have plentiful spatial distribution and
The constant source of stabilization, is a kind of low-carbon (LC) cleaning recoverable energy hardly by natural environment influence.So, radio
The breakthrough of magnetic energy collection technology and business application are having " the exploitation skill of new energy of great strategic significance to Human Sustainable Development
One of study hotspot of renewable energy technologies is turned into art ".
Electromagnetic energy collects the cross theory problem for having been formed as two different fields of the communication technology and energy technology, natural
Abundant electromagnetic energy, mobile communication base station, broadcasting station, television signal transmission platform, satellite communication, Yi Ji great are there is in boundary
Gas-bearing formation thunder and lightning, sunspot outburst, magnetic field of the earth fluctuation etc. generation electromagenetic wave radiation, these electromagnetic wave energies or be wasted or
Environment is polluted, electromagnetic energy collection technique is exactly that radio radiation energy absorption is recycled, to being dispersed with space
Electromagnetic energy absorbed and storing up electricity.
Found by retrieval, existing many patents are related to electromagnetic energy to collect in existing patent document.Wherein, it is most of special
Device, system, the equipment of profit description are all to have used traditional antenna as electromagnetic energy collector.According to theory, traditional antenna
It is 50% to the maximum to irradiation electromagnetic energy receiving efficiency thereon, remaining 50% is all scattered and be reflected back by conductor antenna
Go.In recent years, scientific circles are found that " perfect wave absorbing device " that this device is come real by the structure design of conductor-medium-conductor
Existing wave-absorbing property, maximum absorbent efficiency more than 90%, that is, almost without the black matrix of echo, it is possible to achieve inhale to greatest extent
Receive and minimal reflection and scattering.But the subject matter that the structure design of this conductor-medium-conductor is present at this stage is
Only there is relatively satisfactory absorption efficiency in terms of the absorption of narrow-band, it is still undesirable for wide band assimilation effect.
The content of the invention
Present invention aim at for the above-mentioned problem not good for wide band assimilation effect, by the width using design
Frequency band absorbent structure, realizes that more electromagnetic wave energies are collected, and then provides a kind of spatial electromagnetic collection of energy, storage and power supply dress
(device) is put, to supplement traditional solar cell for supplying power device and firepower water generating power supply.
To achieve the above object, technical scheme proposed by the present invention be electromagnetic energy based on wide-band and wave-absorbing device collect,
Storage and electric supply installation, including electromagnetic energy is received and feeding network module, circuit impedance matching and filtration module, rectification mould
Block, from power DC-DC boost modules and energy storage module, electromagnetic energy is received and the output end connection of feeding network module is electric
The output end of road impedance matching and the input of filtration module, impedance matching and filtration module connects the input of rectification module,
From power DC-DC boost modules, the output end of boost module connects the electricity of energy storage module for the output end connection of rectification module
Source input, the electromagnetic energy is received and feeding network module includes wide-band and wave-absorbing device.
Further, above-mentioned wide-band and wave-absorbing device uses " metal patch layer-dielectric layer-metal back layer-dielectric layer-feed layer "
Structure, by changing the geometry of the superiors' metal patch, makes its own form the characteristic of multimodal resonance, realizes that broadband is inhaled
Receive.
Preferably, the geometry of above-mentioned metal patch can be E shapes or sector.
To E shape metal patches, by adjusting three positions of band, width and length, can adjust and inhale the humorous of wave frequency rate,
Shake a little, forming multi-resonant frequency carries out suction ripple, so that broadening suction wavestrip is wide.
To fan-shaped metal patch, by adjusting fan-shaped garden radius, the corresponding angle of garden arc and sectorial area shape, can
The resonance point of wave frequency rate, is inhaled to adjust, forming multi-resonant frequency carries out suction ripple, so that broadening suction wavestrip is wide.
The planar structure of above-mentioned fan-shaped metal patch is the leaf-shaped of electric fan, and unit can be two leaves, three leaves, four leaves
With leafy shape.
The unit of above-mentioned metal patch is arranged in array.
Preferably, distance is half wavelength or so between said units and unit.
Can be by the thickness and dielectric of the dielectric layer between adjustment unit spacing, metal patch layer and metal back layer unit
Constant adjusts electro-magnetic wave absorption efficiency.
E shapes and fan-shaped metal patch are to be formed in dielectric layer upper surface by etching, and each metal patch unit is by adopting
The power synthesis circuit of feeding network module, each metal patch are connected to the microstrip-fed line of couple feed technology extracted current
The feed line of blade unit will carry out impedance matching；The output end of power synthesis circuit is connected with the input of rectification module,
Direct current electricity output is obtained by the output end of rectification module.
Compared with prior art, beneficial effects of the present invention：
1, the spatial electromagnetic ripple received by high-selenium corn efficiency broadband electromagnetic energy receiver changes the electric energy warp for coming
AC energy is converted to direct current energy by over commutation, filtering, and power storage then is worked as into needs in accumulator (super capacitor)
Power supply is controlled by energy management module during electricity consumption, there is provided a kind of passive energy storage device that can be worked for a long time, instead of tradition
Battery, lithium battery, not recontamination environment, threaten health.
2, relatively existing passive product-solar photovoltaic device still can be reliable and stable in the case where weather is not good
Work, the present invention obtains electric energy by the electromagnetic wave for collecting radio frequency-Terahertz frequency range present in environment, uninterrupted to provide electricity
Can, and be not required to very important person and carry out daily management and maintenance, its economic and social benefit is obvious.
Brief description of the drawings
Fig. 1 is system block diagram of the invention.
Fig. 2 is broadband electromagnetic wave energy collector structure figure.
Fig. 3 is wave absorbing device electric current output feed network structures figure.
Fig. 4 is rectification module circuit diagram.
Fig. 5 is from power DC-DC booster circuit module map.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention includes electromagnetic wave energy receiver module (1), circuit impedance matching, filtering (2) and rectification
Module (3), from power DC-DC booster circuit module (4) and energy storage module (5).
Wide-band and wave-absorbing device described in Fig. 2 is tied using " metal patch layer-dielectric layer-metal back layer-dielectric layer-feed layer "
Structure, by changing the geometry of the superiors' metal patch, makes its own form the characteristic of multimodal resonance, so as to realize that broadband is inhaled
Receive.Two kinds of structures of the present invention, E shapes and sector will improve more than 60% than traditional cross and ring bandwidth.It is many
Individual unit is arranged in array, and distance is half wavelength or so between unit and unit, both wave absorbing device geometry cycle, cycle chi
It is very little relevant with medium, need to carefully design tuning.This array in addition to it increased receiving area, actually using periodic structure
The principle that reflection to irradiating electromagnetic wave thereon interfere cancellation receives electromagnetism weave efficiency to improve.
The electromagnetic energy that wave absorbing device absorbs is drawn by feeding network, and method is realized with microstrip antenna couple feed technology
, as shown in figure 3, structure has five layers, topmost one layer is that metal patch inhales ripple unit 1, and the second layer is medium 2, third layer
It is metal ground plate 3, the 4th layer is medium 4, and layer 5 is microstrip-fed line 5, wherein metal ground plate is in each suction ripple unit
A groove 6 has been carved in lower section, and the induction field for the electric current on chip unit to be caused passes through the groove couple electromagnetic energy to most
On the feed line of lower floor.Every multiple chip units of feeding microstrip line series connection, draw electric current.
Microstrip-fed line carries out impedance matching with current rectifying and wave filtering circuit, high frequency ac signal is input to rectification module, such as
Shown in Fig. 4, rectification module includes multiple rectifiers, and rectifier main element is Schottky diode, and each rectifier is configured
Into and operate to receive ac signal, generate corresponding DC electric power；
The electric current of rectification module output is input to low-power DC-to-dc (DC-DC) booster circuit, booster circuit it is main
Function is that weak current is transformed into high voltage output, it is converted into available direct current energy.The present invention uses DC-DC
The LTC3108 type power management techniques of self-resonance transformer, when input voltage is 10mV-30mV, output voltage is constant to be
1.0V-3.3V。
As shown in figure 5, the DC voltage of DC-to-dc (DC-DC) booster circuit output is added in electric energy on super capacitor
Store.Super capacitor is a kind of electrochemical capacitor, and this electric capacity has that long lifespan, the fast, charge mode that charges be various, initial work
Make voltage it is relatively low the features such as.It is mainly made of materials such as conducting polymer, metal oxide, carbon electrode materials.Super electricity
Appearance can get up the power storage of low voltage difference.The present invention is the super capacitor of 2.0V using blanking voltage, and Capacity Selection is 1F.
Present invention employs new " perfection " electromagnetic wave absorption device based on artificial electromagnetic material structure, electromagnetic energy is improve
Absorption efficiency, the array that the wave absorbing device is made up of the broadband units of periodic arrangement, the absorption efficiency of unit is 80%
More than.Wave absorbing device includes array element, earth plate and feeding microstrip line.It is medium, ground connection between the array element and earth plate
Slotted eye is opened on plate, for couple feed, earth plate and array element are to be placed in parallel.Electromagnetic wave incident is to being placed on earth plate
On the array element of side.
The above electromagnetic energy absorption, storage, electric supply installation, are not light energy absorption, storage, electric supply installation, but sharp
With high-selenium corn efficiency wide-band and wave-absorbing device, radio-wave radiation can be converted into electric energy, using the wide-band and wave-absorbing unit for proposing
The wave absorbing device of structure fabrication, when wave frequency from 30MHz to 900GHz (radio frequency to Terahertz) electromagnetic wave irradiation to this hair
When on the rubber-ferrite device in bright, the present invention is disclosed and the energy of electromagnetic wave will be become power storage.When many
Such device be together in parallel reception electromagnetic energy can just have bigger power output.
The above, is only the example in a certain CF of the invention, and any form is not made to the present invention
On restriction.Any those skilled in the art are changed or are modified to possibly also with the technology contents of the disclosure above
The equivalent example of same change, but it is every without departing from technical solution of the present invention content, according to technical spirit of the invention to the above
Any simple modification, equivalent variations and modification that example is made, still fall within protection scope of the present invention.
From the above description it should be understood that, although have illustrated and described specific implementation, but it can be made and
This is susceptible to various modifications.The specific example that the present invention is not intended to by being provided in specification is limited.Although having referred to preceding
State specification and describe the present invention, but this specification description related to the preferred embodiment and explanation should not be come with restricted meaning
Explain.Moreover, it will be appreciated that all aspects of the invention be not limited to it is above-described depending on various conditions and the tool of variable
Body is described, is configured or relative scale.To the various modifications in the form and details of embodiment of the present invention for art technology
Be would is that for personnel obvious.
Claims (10)
1. the electromagnetic energy based on wide-band and wave-absorbing device is collected, stored and electric supply installation, including electromagnetic energy is received and transmission network
Network module, circuit impedance matching and filtration module, rectification module, from power DC-DC boost modules and energy storage module, electromagnetism
The output end connection circuit impedance matching and the input of filtration module, impedance matching and filter of energy acceptance and feeding network module
The output end of ripple module connects the input of rectification module, and the output end connection of rectification module rises from power DC-DC boost modules
The output end of die block connects the power input of energy storage module, it is characterised in that the electromagnetic energy is received and transmission network
Network module includes wide-band and wave-absorbing device.
2. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 1 is collected, stored and electric supply installation, its feature
It is that the wide-band and wave-absorbing device uses " metal patch layer-dielectric layer-metal back layer-dielectric layer-feed layer " structure, by changing
Become the geometry of the superiors' metal patch, its own is formed the characteristic of multimodal resonance, realize wide band absorption.
3. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 2 is collected, stored and electric supply installation, its feature
The geometry for being the metal patch can be E shapes or sector.
4. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 3 is collected, stored and electric supply installation, its feature
It is that, to E shape metal patches, by adjusting three positions of band, width and length, the resonance point for inhaling wave frequency rate, can be adjusted,
Forming multi-resonant frequency carries out suction ripple, so that broadening suction wavestrip is wide.
5. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 3 is collected, stored and electric supply installation, its feature
It is that, to fan-shaped metal patch, by adjusting fan-shaped garden radius, the corresponding angle of garden arc and sectorial area shape, can adjust
Section inhales the resonance point of wave frequency rate, and forming multi-resonant frequency carries out suction ripple, so that broadening suction wavestrip is wide.
6. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 3 is collected, stored and electric supply installation, its feature
The planar structure for being the fan-shaped metal patch is the leaf-shaped of electric fan, and unit can be two leaves, three leaves, four leaves and many
Leaf shape.
7. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 2 is collected, stored and electric supply installation, its feature
It is that the unit of the metal patch is arranged in array.
8. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 2 is collected, stored and electric supply installation, its feature
It is that distance is half wavelength or so between the unit and unit.
9. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 8 is collected, stored and electric supply installation, its feature
It is according to claim 1, it is characterised in that can be by adjustment unit spacing, metal patch layer and metal back layer list
The thickness and dielectric constant of the dielectric layer between unit adjusts electro-magnetic wave absorption efficiency.
10. the electromagnetic energy based on wide-band and wave-absorbing device according to claim 2 is collected, stored and electric supply installation, and it is special
Levy and be, E shapes and fan-shaped metal patch are to be formed in dielectric layer upper surface by etching, and each metal patch unit is by using
The microstrip-fed line of couple feed technology extracted current is connected to the power synthesis circuit of feeding network module, each metal patch
The feed line of unit will carry out impedance matching；The output end of power synthesis circuit is connected with the input of rectification module, by
The output end of rectification module obtains direct current electricity output.
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Cited By (11)
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| CN107612113A (en) * | 2017-10-23 | 2018-01-19 | 国网江西省电力公司电力科学研究院 | Using the electronic current mutual inductor electric power system of wind magnetic combined energy collector |
| CN108199428A (en) * | 2017-12-29 | 2018-06-22 | 徐州德坤电气科技有限公司 | A kind of control method of wireless charging device |
| CN108233554A (en) * | 2017-12-29 | 2018-06-29 | 徐州德坤电气科技有限公司 | A kind of wireless charging device |
| CN109687152A (en) * | 2018-12-11 | 2019-04-26 | 南京邮电大学 | A kind of microwave rectification antenna |
| CN109802498A (en) * | 2019-02-22 | 2019-05-24 | 上海鹄恩信息科技有限公司 | A kind of power supply system based on radio frequency electromagnetic collection of energy, method and device |
| CN110401268A (en) * | 2019-07-29 | 2019-11-01 | 哈尔滨工业大学 | A kind of RF energy collection method and system based on electromagnetic space Situation Awareness |
| CN110768391A (en) * | 2018-07-09 | 2020-02-07 | 南京大学 | Device for collecting and converting space electromagnetic wave energy |
| CN111030322A (en) * | 2019-11-28 | 2020-04-17 | 中国地质大学（武汉） | Micro-energy collection management system with low-current starting and voltage monitoring function |
| CN113809545A (en) * | 2021-10-08 | 2021-12-17 | 中国人民解放军空军工程大学 | Nonlinear wave-absorbing super surface for space electromagnetic waves |
| CN114069246A (en) * | 2021-12-02 | 2022-02-18 | 四川大学 | Rectification surface for absorbing electromagnetic waves based on periodic structure |
| CN114368251A (en) * | 2021-12-08 | 2022-04-19 | 北京航空航天大学 | Terahertz wireless energy carrying system |
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| CN107612113A (en) * | 2017-10-23 | 2018-01-19 | 国网江西省电力公司电力科学研究院 | Using the electronic current mutual inductor electric power system of wind magnetic combined energy collector |
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| CN111030322A (en) * | 2019-11-28 | 2020-04-17 | 中国地质大学（武汉） | Micro-energy collection management system with low-current starting and voltage monitoring function |
| CN113809545A (en) * | 2021-10-08 | 2021-12-17 | 中国人民解放军空军工程大学 | Nonlinear wave-absorbing super surface for space electromagnetic waves |
| CN113809545B (en) * | 2021-10-08 | 2022-11-18 | 中国人民解放军空军工程大学 | Nonlinear wave-absorbing super surface for space electromagnetic waves |
| CN114069246A (en) * | 2021-12-02 | 2022-02-18 | 四川大学 | Rectification surface for absorbing electromagnetic waves based on periodic structure |
| CN114368251A (en) * | 2021-12-08 | 2022-04-19 | 北京航空航天大学 | Terahertz wireless energy carrying system |
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