CN107425884A - A kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system - Google Patents
A kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system Download PDFInfo
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- CN107425884A CN107425884A CN201710753097.7A CN201710753097A CN107425884A CN 107425884 A CN107425884 A CN 107425884A CN 201710753097 A CN201710753097 A CN 201710753097A CN 107425884 A CN107425884 A CN 107425884A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 11
- 238000010168 coupling process Methods 0.000 abstract description 11
- 238000005859 coupling reaction Methods 0.000 abstract description 11
- 230000001186 cumulative effect Effects 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 208000000058 Anaplasia Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
- H04B5/263—Multiple coils at either side
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention provides a kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system,It is related to field of wireless transmission,Direct current is converted to alternating current by transmitting terminal,Alternating current passes through transmission signal after circulator,The signal that receiving terminal receives reaches rectifier after low-frequency filter filters,Signal is converted to direct current by rectifier from alternating current,Powered for low-noise amplifier,Receiving terminal is amplified after receiving signal of communication by low-noise amplifier,Launch after the circulator that signal after amplification passes through receiving terminal,After receiving terminal receives signal of communication,It is filtered by circulator into high frequency filter,Filtered signal reaches receiver,The present invention transmits two kinds of transmission means due to having merged the field coupling between the transmission of the Mutual Inductance Coupling between coil and parallel plate capacitor,So that the efficiency of double frequency transmission is greatly improved in the case where device cumulative volume is constant.
Description
Technical field
The present invention relates to field of wireless transmission, the wireless transmitting system of especially a kind of electric energy and electromagnetic signal.
Background technology
The implementation of wireless energy transfer substantially divides three kinds, i.e., based on electromagnetic induction, based on magnetic resonance coupling and is based on
The wireless energy transmission technology of microwave or femtosecond laser.Multi-purpose electromagnetic induction or magnetic resonance coupling are transmitted for short-range energy
Theory designs transmitting reception antenna, but coil dimension used in the method for near field magnetic coupling is big, and efficiency of transmission is low, is not suitable for
It is vehicle-mounted.In terms of multi-frequency radio transmission, to reach in the impedance matching simultaneously of two frequencies, typically transmitted respectively using multiple coils
Different frequency signals energy, and parasitic couplings caused by multiple coil simultaneous transmission different frequency energy seriously reduce energy
Efficiency of transmission and aggrandizement apparatus cumulative volume.Found through the literature search to prior art, W Wei in 2013 et al. are in IEEE
Transactions on Antennas&Propagation,2013,62(1):411-419 has delivered " Characteristic
Analysis of Double Spiral Resonator for Wireless Power Transmission ", it is proposed that can
Farthest 20 centimetres of efficient energy transmission, efficiency of transmission 95%, but two coil diameters are realized up to 30 centimetres in 13.56MHz,
And can not realize that multi-frequency energy transmits, it is difficult to realize application on automobile.D Ahn in 2016 et al. are in IEEE
Transactions on Power Electronics,2016,31(7):" Wireless Power have been delivered on 5018-5029
Transfer With Concurrent 200-kHz and 6.78-MHz Operation in a Single-
Transmitter Device ", it is wirelessly transferred the energy of two frequencies in literary simultaneously using two sets of coils, it is proposed that Yi Zhongxin
Efficiency caused by parasitics and eddy-current loss between two sets of coils is reduced and minimized by circuit topology, and as little as 1.3% arrives
4.2%, while energy transform device total size only increases by 10%.Realize 25mm apart from when, 6.78MHz and 200kHz double frequencies
Efficiency of transmission can reach 78% and 70.6%.But device total size still has 12.5 × 8.9 square centimeters, and new topology address only hair
The area for penetrating or receiving certain one end saves problem, and low-frequency range energy transmission efficiency is undesirable, and energy charge is larger.
The content of the invention
For overcome the deficiencies in the prior art, the present invention is under the transmission environment near field, due to the characteristic of electromagnetic coupled, contracting
The size of small transmitting receiving coil can reduce the efficiency of transmission of the efficiency of transmission, especially low-frequency range of electric energy, then in electromagnetism coupling
Field coupling is added on the basis of conjunction, that is, increases the area of winding wire, hollow radius is reduced and is received so as to increase transmitting
Hold facing area so that in the case where not increasing volume, electric capacity change is big, and capacitive reactance reduces, final to improve entirety, especially low frequency
The energy transmission efficiency of section.
The technical solution adopted for the present invention to solve the technical problems is：The electric energy and electromagnetic signal of described sharing channel
In short range wireless transmission system, transmitting terminal signal source is D/C power, and D/C power transmission signal is by DC-DC converter by direct current
Alternating current is converted to, alternating current is reached through medium and connect by No. 1 antenna transmission signal after circulator by transmitting terminal, signal
No. 2 antennas of receiving end, the signal that No. 2 antennas receive reach rectifier after low-frequency filter filters, rectifier by signal from
Alternating current is converted to direct current, is powered for low-noise amplifier, and the reception antenna of receiving terminal is received after signal of communication by low
Noise amplifier is amplified, and the signal after amplification is launched after entering No. 2 antennas by the circulator of receiving terminal, and the 1 of receiving terminal
After number antenna receives signal of communication, it is filtered by circulator into high frequency filter, filtered signal, which reaches, to be received
Machine.
Described No. 1 antenna and No. 2 antennas is to print multiturn helical annulus on circuit boards, and the interval between annulus is less than
The hollow radius of conductor width, conductor width 1mm, and helical annulus is less than No. 1 antenna and No. 2 whole annular radiis of antenna
1/3, No. 1 antenna and No. 2 antenna parallels are placed.
The beneficial effects of the invention are as follows due to having merged the electricity between the transmission of the Mutual Inductance Coupling between coil and parallel plate capacitor
Field two kinds of transmission means of coupled transfer so that the efficiency of double frequency transmission obtains carrying greatly very much in the case where device cumulative volume is constant
It is high.
Brief description of the drawings
Fig. 1 is wireless charging system theory diagram of the present invention, and wherein LNA is low-noise amplifier.
Fig. 2 is wireless charging system circuit theory schematic diagram of the present invention.
Fig. 3 is the connection diagram of the embodiment of the present invention.
Fig. 4 (a) is that the present invention is 4.9cm in No. 1 antenna and No. 2 antenna radius, the input return loss when number of turn is 24,
Fig. 4 (b) is that the present invention is 4.9cm in No. 1 antenna and No. 2 antenna radius, the positive transmission coefficient when number of turn is 24.
Fig. 5 (a) be the embodiment of the present invention in 10MHz-250MHz input return loss, Fig. 5 (b) is the embodiment of the present invention
In 10MHz-250MHz positive transmission coefficient, Fig. 5 (c) is that output echo of the embodiment of the present invention in 10MHz-250MHz damages
Consumption.
Fig. 6 (a) is input return loss of the embodiment of the present invention in 1400MHz-1450MHz, and Fig. 6 (b) is real for the present invention
Positive transmission coefficient of the example in 1400MHz-1450MHz is applied, Fig. 6 (c) is the embodiment of the present invention in the defeated of 1400MHz-1450MHz
Go out return loss.
Wherein, 1- transmiting signal sources, 2- transmitting terminal dissipative cells, 3- transmitting terminal circulators, 4- transmitting coils, 5- receive line
Circle, 6- receiving terminal circulators, 7- receiving terminal dissipative cells, 8- signal receiving antennas.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
The present embodiment is implemented under premised on technical solution of the present invention, gives detailed embodiment and specific
Operating process, but protection scope of the present invention is not limited to following embodiments.
Transmitting terminal signal source is D/C power, and direct current is converted to exchange by D/C power transmission signal by DC-DC converter
Electricity, alternating current reach No. 2 of receiving terminal through medium by No. 1 antenna transmission signal after circulator by transmitting terminal, signal
Antenna, the signal that No. 2 antennas receive reach rectifier after low-frequency filter filters, and rectifier changes signal from alternating current
For direct current, powered for low-noise amplifier, the reception antenna of receiving terminal passes through low-noise amplifier after receiving signal of communication
It is amplified, the signal after amplification is launched after entering No. 2 antennas by the circulator of receiving terminal, and No. 1 antenna of receiving terminal receives
To after signal of communication, it is filtered by circulator into high frequency filter, filtered signal reaches receiver.
There are two paths of signals, respectively energy signal and signal of communication in the present system, as described in Figure 1, two paths of signals is all each
Sent after capturing 1.47GHz signal of communication from the reception antenna via No. 1 antenna and No. 2 antennas being placed in parallel, receiving terminal
It is amplified to low-noise amplifier, then by No. 1 antenna and No. 2 antenna transmissions to high frequency filter, finally reaches receiver,
Receiver extracts useful information by signal is demodulated.And D/C power provides direct current, the shape after DC-DC converter converts
Into 200MHz alternating currents, then after reaching the low-frequency filter of receiving terminal by No. 1 antenna and No. 2 antenna transmissions, by rectifier
It is direct current by exchange Electrical change, and is powered for low-noise amplifier.The system is due to the limitation of instrument size, only with No. 1
A pair of antennas of antenna and No. 2 antennas, so need to be integrated and shunted when signal passes in and out No. 1 antenna and No. 2 antennas, so
Receiving terminal is respectively provided with a circulator with transmitting terminal, and 200MHz energy signal and 1.47GHz information signal are at circulator
Integrate, and punish and flow in another circulator, while transmission signal passes through emitted energy signal after transmitting terminal connection circulator, ring
Row device is isolated 200MHz energy signals with the dissipative cell in the receiver and high frequency filter of transmitting terminal, i.e. transmitting letter
The energy signal in number source does not form path with the dissipative cell in transmitting terminal receiver and high frequency filter, only passes through No. 1 antenna
It is transmitted, similarly, No. 2 antennas connect circulators by the low-noise amplifier in 200MHz energy signals and receiving terminal and reception
The dissipative cell of antenna is isolated.
Described No. 1 antenna and No. 2 antennas is to print multiturn helical annulus on circuit boards, and the interval between annulus is less than
The hollow radius of conductor width, conductor width 1mm, and helical is less than the 1/3 of No. 1 antenna and No. 2 whole annular radiis of antenna,
No. 1 antenna and No. 2 antenna parallels are placed and relative distance is 5mm；The coil turn of No. 1 antenna and No. 2 antennas is more, coil compared with
Close and middle is hollow small, so as to obtain less capacitance.
Wireless charging system circuit theory schematic diagram of the present invention is as shown in Fig. 2 antenna 1 passes through combined magnetic field coupling with antenna 2
Close with field coupling to improve the efficiency of transmission of electric energy, i.e. antenna 1 both can be considered that the helical antenna being placed adjacent passed through with antenna 2
Transmission energy is carried out in the magnetic field of conversion, can be considered the flat board that opposition is placed again, and energy transmission is carried out by the electric field change between flat board.
Fig. 3 is the connection diagram of the embodiment of the present invention.
Fig. 4 (a) is that the present invention is 4.9cm in No. 1 antenna and No. 2 antenna radius, the input return loss when number of turn is 24,
Fig. 4 (b) is that the present invention is 4.9cm in No. 1 antenna and No. 2 antenna radius, the positive transmission coefficient when number of turn is 24.
Fig. 5 (a) be the embodiment of the present invention in 10MHz-250MHz input return loss, Fig. 5 (b) is the embodiment of the present invention
In 10MHz-250MHz positive transmission coefficient, Fig. 5 (c) is that output echo of the embodiment of the present invention in 10MHz-250MHz damages
Consumption.
Fig. 6 (a) is input return loss of the embodiment of the present invention in 1400MHz-1450MHz, and Fig. 6 (b) is real for the present invention
Positive transmission coefficient of the example in 1400MHz-1450MHz is applied, Fig. 6 (c) is the embodiment of the present invention in the defeated of 1400MHz-1450MHz
Go out return loss.
When emitter works, electromagnetic energy reaches No. 1 antenna by receiving terminal circulator, and No. 1 antenna forms the magnetic line of force, should
The magnetic line of force passes through No. 2 antennas, and when the electromagnetic signal of emitter transmitting changes over time, sensing will be produced in No. 2 antennas
Electromotive force, and induced-current is formed, and current loop is formed with described receiving terminal dissipative cell, so as to be receiving terminal power consumption member
Part charges.At the same time, electric field can be also formed between No. 1 antenna and No. 2 antennas, when the electromagnetic signal of emitter transmitting is with the time
During change, displacement current can be produced between No. 1 antenna and No. 2 antennas, so as to cause the anaplasia at any time of the total amount of electric charge on No. 2 antennas
Change, so as to produce electric current, flow to described receiving terminal dissipative cell.When signal receiving antenna works, electromagnetic energy passes through No. 1 antenna
Transmit to No. 2 antennas, at the same between No. 1 antenna and No. 2 antennas formed electric field produce displacement current, with transmitting terminal dissipative cell with
And ground forms loop, so as to be charged for transmitting terminal dissipative cell.No. 1 antenna and No. 2 antennas have high in multiple frequency ranges
Energy transmission efficiency, so as to ensure the efficiency of transmission of 200MHz and 1.47GHz double frequency energy signal transmission.
Simulation result shows, under the conditions of the suitable number of turn and coil radius, low-frequency range and 1465MHz~1475MHz frequencies
The return loss of section is less than -10dB, and carry-over factor, close to 100%, is -2dB in 1465MHz~1475MHz frequency ranges in low-frequency range.
Claims (1)
1. a kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system, it is characterised in that：
The electric energy of described sharing channel with electromagnetic signal short range wireless transmission system, transmitting terminal signal source is D/C power, DC
Direct current is converted to alternating current by power supply transmission signal by DC-DC converter, alternating current by after circulator by transmitting terminal
No. 1 antenna transmission signal, signal through medium reach receiving terminal No. 2 antennas, the signal that No. 2 antennas receive by low frequency filter
Rectifier is reached after the filtering of ripple device, signal is converted to direct current by rectifier from alternating current, is powered for low-noise amplifier, is received
The reception antenna at end is amplified after receiving signal of communication by low-noise amplifier, and the signal after amplification passes through receiving terminal
Circulator is launched after entering No. 2 antennas, after No. 1 antenna of receiving terminal receives signal of communication, enters high frequency filter by circulator
Ripple device is filtered, and filtered signal reaches receiver；
Described No. 1 antenna and No. 2 antennas is to print multiturn helical annulus on circuit boards, and the interval between annulus is less than wire
The hollow radius of width, conductor width 1mm, and helical annulus is less than the 1/3 of No. 1 antenna and No. 2 whole annular radiis of antenna,
No. 1 antenna and No. 2 antenna parallels are placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753097.7A CN107425884A (en) | 2017-08-29 | 2017-08-29 | A kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753097.7A CN107425884A (en) | 2017-08-29 | 2017-08-29 | A kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system |
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| CN107425884A true CN107425884A (en) | 2017-12-01 |
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| CN201710753097.7A Pending CN107425884A (en) | 2017-08-29 | 2017-08-29 | A kind of electric energy of sharing channel and electromagnetic signal short range wireless transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327079A (en) * | 2018-10-22 | 2019-02-12 | 深圳蔚蓝无限科技有限公司 | Radio energy transmission system and method |
| CN112421791A (en) * | 2019-08-20 | 2021-02-26 | 哈尔滨工业大学 | Wireless energy and information synchronous transmission circuit based on DD coil structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325427A (en) * | 2007-06-14 | 2008-12-17 | 索尼株式会社 | Communication system and communication apparatus |
| CN105141045A (en) * | 2015-10-22 | 2015-12-09 | 毛茂军 | Magnetic coupling resonance-type wireless electric energy transmission control system |
-
2017
- 2017-08-29 CN CN201710753097.7A patent/CN107425884A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325427A (en) * | 2007-06-14 | 2008-12-17 | 索尼株式会社 | Communication system and communication apparatus |
| CN105141045A (en) * | 2015-10-22 | 2015-12-09 | 毛茂军 | Magnetic coupling resonance-type wireless electric energy transmission control system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327079A (en) * | 2018-10-22 | 2019-02-12 | 深圳蔚蓝无限科技有限公司 | Radio energy transmission system and method |
| CN112421791A (en) * | 2019-08-20 | 2021-02-26 | 哈尔滨工业大学 | Wireless energy and information synchronous transmission circuit based on DD coil structure |
| CN112421791B (en) * | 2019-08-20 | 2023-09-08 | 哈尔滨工业大学 | Wireless energy and information synchronous transmission circuit based on DD coil structure |
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Application publication date: 20171201 |
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