CN105048649A - Environmental radio frequency energy collector based on electromagnetic metamaterial frequency selective surface - Google Patents
Environmental radio frequency energy collector based on electromagnetic metamaterial frequency selective surface Download PDFInfo
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- CN105048649A CN105048649A CN201510489071.7A CN201510489071A CN105048649A CN 105048649 A CN105048649 A CN 105048649A CN 201510489071 A CN201510489071 A CN 201510489071A CN 105048649 A CN105048649 A CN 105048649A
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Abstract
The invention provides an environmental radio frequency energy collector based on an electromagnetic metamaterial frequency selective surface. The environmental radio frequency energy collector structurally comprises a diode, a through hole, an FR-4 substrate, coated copper, a coated copper connection line, a positive lead, a negative lead, an antenna, a distance, a connection line for connecting a positive pole, a connection line for connecting a negative pole, an energy manager, a super capacitor and a load, wherein the model number of the diode is SMS7630; the antenna is capable of emitting signals of 900MHz to 2.45GHz; and the model number of the energy manager is BQ25504. The environmental radio frequency energy collector is applied to various fields. Compared with a traditional radio frequency energy collector, the environmental radio frequency energy collector has a plurality of advantages that a frequency band with a relatively large bandwidth can be collected; the environmental radio frequency energy collector has a certain collecting capability for signals of GSM900 (900MHz), GSM1800 (1.8GHz) and WiFi (2.45GHz); matching and rectifying circuits are omitted; the energy loss is reduced; and the structure of the environmental radio frequency energy collector has superposition property, namely the collected energy can be superposed along with increase of the number of elements.
Description
Technical field
The present invention relates to a kind of ambient radio-frequency energy gatherer based on electromagnetism Meta Materials frequency-selective surfaces, belong to energy collection technology field.
Background technology
It is emerging sophisticated technology that radio-frequency (RF) energy is collected, and is also a new trend of wireless energy supply.At present along with the development of ultra low power transducer, micro radio wearable device and implanted electronic equipment, the defect of existing battery and active energy supplying system is also more and more obvious.Also the theory of environmental protection is embodied by the radio-frequency (RF) energy energy supply of collecting in environment.Existing radio-frequency (RF) energy gathering-device mostly utilizes traditional antenna as gathering-device, and the bandwidth that the present invention's utilize Meta Materials frequency-selective surfaces to collect radio-frequency (RF) energy is collected in environment frequency bandwidth ratio traditional antenna is collected more greatly and have superposability, namely the energy of each unit collection is stackable, has more practicality.
Summary of the invention
The object of the invention is for prior art not enough, a kind of ambient radio-frequency energy gatherer based on electromagnetism Meta Materials frequency-selective surfaces is provided.
Energy collecting device of the present invention, is made up of radio frequency occurring source, electromagnetism Meta Materials frequency-selective surfaces, SMS7630 diode, energy manager, super capacitor.
Inherently there is many radiofrequency signals in surrounding environment, there are the GSM signal, WiFi signal etc. of mobile phone, but power is less, here we the present invention launches the signal of 2.45GHz again as radio frequency occurring source with a wireless routing, Meta Materials frequency-selective surfaces is utilized to collect this radio-frequency (RF) energy in certain distance, it is SMS7630 type diode that each unit is welded with model, then the input of the both positive and negative polarity of receiving surface access energy manager, and super capacitor is connected on energy manager storage pin to store the energy collected.
The present invention relates to wireless radio-frequency, magnetic coupling techniques and resonance element circuit designing technique.When the electromagnetic wave incident in environment is to electromagnetism Meta Materials frequency-selective surfaces, the electric field parallel with paster direction, produces active force to electronics and makes it vibrate, cell surface forms induced current.Then the energy that diode pair of burn-oning on the transmission line of each unit is collected carries out rectification and specifies that it flows to.And adopt the hexagonal design of dicyclo in the circuit design of electromagnetism Meta Materials frequency-selective surfaces, pairs of transmission line is to improve capacity gauge and reducing unit structure.
Energy harvester structure of the present invention comprises: model is SMS7630 type diode, via hole, FR-4 type substrate, cover copper, cover copper connecting line, energy manager that positive wire, negative wire, the antenna can launching 900MHz to 2.45GHz signal, distance, the connecting line connecting positive pole, the connecting line connecting negative pole, model are BQ25504, super capacitor, load.
Be that SMS7630 type diode is solded in each unit of electromagnetism Meta Materials frequency-selective surfaces successively by model, then on the direction end of regulation, positive wire and negative wire is drawn, access model is the input of the energy manager of BQ25504, in the storage termination of this energy manager, super capacitor is as energy accumulator, place within antenna coverage 1.5 meters that distance radio frequency occurring source can launch 900MHz to 2.45GHz signal and charge, at the output terminating load of above-mentioned energy manager after super capacitor charging complete, as LED, low-power consumption sensor, rechargeable battery etc.
Beneficial effect of the present invention: energy harvester application of the present invention is very extensive; and there are many advantages relative to traditional radio-frequency (RF) energy gatherer: one; the band bandwidth that can collect is wider, for GSM900(900MHz) and GSM1800 (1.8GHz), WiFi(2.45GHz) signal all there is certain capacity gauge; Its two, eliminate coupling and rectification circuit, decrease the loss of energy; Its three, this structure has superposability, and the energy namely collected can superpose with the increase of unit number.
Accompanying drawing explanation
Fig. 1 is based on electromagnetism Meta Materials frequency-selective surfaces construction unit schematic diagram;
In figure 1 for model be SMS7630 type diode, 2 is via hole, and 3 is FR-4 type substrate, and 4 for covering copper; And the d=31.0869mm marked in figure, w1=1mm, w2=4mm, g=1mm, t=1.6mm, s=1.5mm;
Fig. 2 is that in figure, 5 for covering copper connecting line based on electromagnetism Meta Materials frequency-selective surfaces construction unit schematic rear view;
Fig. 3 is based on electromagnetism Meta Materials frequency-selective surfaces structural representation, and in figure, 6 is positive wire, and 7 is negative wire;
Fig. 4 is application connection diagram, in figure, 8 is the antenna can launching 900MHz to 2.45GHz signal, 9 is distance, 10 for connecting the connecting line of positive pole, 11 for connecting the connecting line of negative pole, 12 for model be the energy manager of BQ25504,13 is super capacitor, and 14 is LED or rechargeable battery even load.
Embodiment
The present invention is described further by following examples.
Energy harvester structure of the present invention comprises: model is SMS7630 type diode, via hole, FR-4 type substrate, cover copper, cover copper connecting line, energy manager that positive wire, negative wire, the antenna can launching 900MHz to 2.45GHz signal, distance, the connecting line connecting positive pole, the connecting line connecting negative pole, model are BQ25504, super capacitor, load.
Be that SMS7630 type diode is solded in each unit of electromagnetism Meta Materials frequency-selective surfaces successively by model, then on the direction end of regulation, positive wire and negative wire is drawn, access model is the input of the energy manager of BQ25504, in the storage termination of this energy manager, super capacitor is as energy accumulator, place within antenna coverage 1.5 meters that distance radio frequency occurring source can launch 900MHz to 2.45GHz signal and charge, at the output terminating load of energy manager after super capacitor charging complete, as LED, low-power consumption sensor, rechargeable battery etc.
Claims (1)
1. based on an ambient radio-frequency energy gatherer for electromagnetism Meta Materials frequency-selective surfaces, it is characterized in that: described energy harvester structure comprises: model is SMS7630 type diode, via hole, FR-4 type substrate, cover copper, cover copper connecting line, energy manager that positive wire, negative wire, the antenna can launching 900MHz to 2.45GHz signal, distance, the connecting line connecting positive pole, the connecting line connecting negative pole, model are BQ25504, super capacitor, load;
Be that SMS7630 type diode is solded in each unit of electromagnetism Meta Materials frequency-selective surfaces successively by model, then on the direction end of regulation, positive wire and negative wire is drawn, access model is the input of the energy manager of BQ25504, in the storage termination of this energy manager, super capacitor is as energy accumulator, place within antenna coverage 1.5 meters that distance radio frequency occurring source can launch 900MHz to 2.45GHz signal and charge, at the output terminating load of energy manager after super capacitor charging complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510489071.7A CN105048649A (en) | 2015-08-12 | 2015-08-12 | Environmental radio frequency energy collector based on electromagnetic metamaterial frequency selective surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510489071.7A CN105048649A (en) | 2015-08-12 | 2015-08-12 | Environmental radio frequency energy collector based on electromagnetic metamaterial frequency selective surface |
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| CN105048649A true CN105048649A (en) | 2015-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833729A (en) * | 2017-11-01 | 2018-03-23 | 国家电网公司 | Hexagon floor tile type coil module and array coil |
| CN109841959A (en) * | 2017-11-27 | 2019-06-04 | 长春理工大学 | Controllable FSS structure of a kind of photoelectricity based on photo-conductive film and preparation method thereof |
| CN110736986A (en) * | 2019-10-18 | 2020-01-31 | 北京大学 | Intelligent Wi-Fi imaging method and system based on field programmable metamaterial |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6369759B1 (en) * | 1999-06-09 | 2002-04-09 | California Institute Of Technology | Rectenna for high-voltage applications |
| CN104113119A (en) * | 2014-07-29 | 2014-10-22 | Tcl通讯（宁波）有限公司 | Charging unit for charging wireless wearable device with NFC (Near Field Communication) antenna |
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2015
- 2015-08-12 CN CN201510489071.7A patent/CN105048649A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6369759B1 (en) * | 1999-06-09 | 2002-04-09 | California Institute Of Technology | Rectenna for high-voltage applications |
| CN104113119A (en) * | 2014-07-29 | 2014-10-22 | Tcl通讯（宁波）有限公司 | Charging unit for charging wireless wearable device with NFC (Near Field Communication) antenna |
Non-Patent Citations (1)
| Title |
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| 张远铭: "宽带超材料覆层高增益天线的研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833729A (en) * | 2017-11-01 | 2018-03-23 | 国家电网公司 | Hexagon floor tile type coil module and array coil |
| CN109841959A (en) * | 2017-11-27 | 2019-06-04 | 长春理工大学 | Controllable FSS structure of a kind of photoelectricity based on photo-conductive film and preparation method thereof |
| CN110736986A (en) * | 2019-10-18 | 2020-01-31 | 北京大学 | Intelligent Wi-Fi imaging method and system based on field programmable metamaterial |
| CN110736986B (en) * | 2019-10-18 | 2021-06-04 | 北京大学 | Intelligent Wi-Fi imaging method and system based on field programmable metamaterial |
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Application publication date: 20151111 |