CN107171453A - A kind of radio frequency rectification circuit of the double branch structures of wideband - Google Patents
A kind of radio frequency rectification circuit of the double branch structures of wideband Download PDFInfo
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- 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
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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Abstract
The present invention relates to a kind of radio frequency rectification circuit of the double branch structures of wideband, including input adapter, shunt, the input connection of input adapter and shunt, in addition to one-segment branch road and two-band branch road；Wherein described one-segment branch road includes single-frequency impedance matching network, voltage multiplying rectifier branch road harmonic and suppresses branch road, the wherein output end connection of the input of single-frequency impedance matching network and shunt, the output end of single-frequency impedance matching network is connected with the input of voltage multiplying rectifier branch road, and the output end of voltage multiplying rectifier branch road is connected with the input of harmonics restraint branch road；The two-band branch road includes double frequency impedance matching network, voltage multiplying rectifier branch road harmonic and suppresses branch road, wherein another output end connection of the input of double frequency impedance matching network and shunt, the output end of double frequency impedance matching network is connected with the input of voltage multiplying rectifier branch road, and the output end of voltage multiplying rectifier branch road is connected with the input of harmonics restraint branch road.
Description
Technical field
It is whole more particularly, to a kind of radio frequency of the double branch structures of wideband the present invention relates to wireless energy transfer field
Current circuit.
Background technology
In wireless sense network and smart field, energy acquisition is to solve the key that energy carrys out source problem, and traditional energy is adopted
Collecting system majority is based on solar energy and wind energy etc., and the energy collecting system is greatly limited by region and weather conditions, only
It can just be applied in specific area, constrain practical application scene, making it difficult to promote.And RF energy collection refers to receipts
Electromagnetic wave around collecting simultaneously is converted into available electric energy, based on flourishing aerogram, microwave energy have its mobility,
It is green free, and not by advantages such as ambient influnences round the clock.In the city of intensive telecomm base station, microwave energy is flooded with everywhere
Amount, collects the microwave energy being wasted in environment and re-using, so that various low power consuming devices work.
But because electromagnetic power density is very small in environment, it is whole that design one kind can be operated in wide-band, efficient radio frequency
Current circuit is very challenging.Traditional rectification circuit has generally comprised impedance matching network, harmonic suppression circuit, two poles
Pipe rectification, DC load etc..The structure of rectification circuit is more, and Basic Topological has Diode series type, parallel connection type, multiplication of voltage
Type, times flow pattern, bridge rectifier etc., and realize rectification circuit it is many/broadband properties and wide input power dynamic range rectified current
Road topological structure, there is single spur track and multiple branch circuit.In the application that wireless energy is gathered, generally require to meet the dynamic model of input power
The requirement that wide, energy conversion efficiency is high, load voltage is high is enclosed, existing rectification circuit is difficult to while meeting above-mentioned requirements.
The content of the invention
The present invention is solves the problem of above prior art, and the present invention combines multiple branch circuit rectifier structure, voltage doubler structure, width
The characteristics of frequency range rectification, propose a kind of radio frequency rectification circuit of the double branch structures of wideband, the rectification circuit have one-segment branch road and
Two-band branch road, rectification is carried out to the RF energy of three frequency ranges, realizes the collection to the RF energy of wideband, therefore, it is possible to up to
To the effect for improving capacity usage ratio.
To realize above goal of the invention, the technical scheme of use is：
A kind of radio frequency rectification circuit of the double branch structures of wideband, including input adapter, shunt, in addition to one-segment branch road and double
Frequency range branch road；
Wherein described one-segment branch road includes single-frequency impedance matching network, the first voltage multiplying rectifier branch road and first harmonic and suppresses branch
The output end connection on road, the wherein input of single-frequency impedance matching network and shunt, the output end of single-frequency impedance matching network
It is connected with the input of the first voltage multiplying rectifier branch road, output end and the first harmonic of the first voltage multiplying rectifier branch road suppress the defeated of branch road
Enter end connection；
The two-band branch road includes double frequency impedance matching network, the second voltage multiplying rectifier branch road and second harmonic and suppresses branch road, its
Another output end of the input of middle double frequency impedance matching network and shunt is connected, the output end of double frequency impedance matching network with
The input connection of second voltage multiplying rectifier branch road, the output end of the second voltage multiplying rectifier branch road suppresses the input of branch road with second harmonic
End connection；
In such scheme, radio frequency rectification circuit is set up by input adapter and radio frequency source and is connected, input adapter and shunt it is defeated
Enter end connection, one-segment branch road carries out rectification, radio frequency energy of the two-band branch road to two frequency ranges to the RF energy of a frequency range
Amount carries out rectification, and shunt is used to make the RF energy of input be shunted to two output ends.Wherein one-segment branch road and double frequency
Single-frequency impedance matching network, double frequency impedance matching network, single-frequency impedance matching network, double frequency resistance are respectively provided with Duan Zhilu
Anti- matching network is used to carry out impedance matching, and the input impedance of one-segment branch road and the input impedance of two-band branch road are all matched
To 50 ohm, in terms of the input of shunt, the impedance matching of three frequency ranges is realized, three close frequency ranges can realize wideband
With effect.
The single-frequency impedance matching network includes the first tapered transmission lines, the second tapered transmission lines, the first short-circuit minor matters, the
Three tapered transmission lines, wherein the first tapered transmission lines one end and shunt output end connect, the first tapered transmission lines it is another
One end is connected with one end of the second tapered transmission lines, one end of the other end of the second tapered transmission lines and the 3rd tapered transmission lines with
One end connection of first short-circuit minor matters, the other end ground connection of the first short-circuit minor matters, the other end and first of the 3rd tapered transmission lines
The input connection of voltage multiplying rectifier branch road.The wherein micro belt line width of the output end of shunt and the first tapered transmission lines junction
Micro belt line width it is unequal.
The double frequency impedance matching network includes the 4th tapered transmission lines, the 5th tapered transmission lines, the second short-circuit minor matters, the
Six tapered transmission lines, wherein one end of the 4th tapered transmission lines and another output end of shunt are connected, the 4th tapered transmission lines
The other end be connected with one end of the 5th tapered transmission lines, the other end of the 5th tapered transmission lines and the one of the 6th tapered transmission lines
End be connected with one end of the second short-circuit minor matters, and the other end of the second short-circuit minor matters is grounded, the other end of the 6th tapered transmission lines and
The input connection of second voltage multiplying rectifier branch road.Wherein the micro belt line width of another output end of shunt and the 4th gradual change are transmitted
The micro belt line width of line junction is unequal.
Preferably, in another preferred scheme of the rectification circuit of the double branch structures of wideband, single-frequency impedance matching network, point
The micro belt line width of the output end of road device is equal with the micro belt line width of tapered transmission lines junction；Double frequency impedance matching network
In, the micro belt line width of another output end of shunt is equal with the micro belt line width of tapered transmission lines junction.
The first voltage multiplying rectifier branch road includes electric capacity C1, diode D1, diode D2, wherein single-frequency impedance matching network
Output end be connected by electric capacity C1 with diode D1 anode, diode D1 negative electrode suppresses the input of branch road with first harmonic
End connection, diode D2 negative electrode is connected with diode D1 anode, diode D2 plus earth.
The second voltage multiplying rectifier branch road includes electric capacity C2, diode D3, diode D4, wherein double frequency impedance matching network
Output end be connected by electric capacity C2 with diode D4 negative electrode, diode D4 anode and the input of second harmonic suppression circuit
End connection, diode D3 anode is connected with diode D4 negative electrode, diode D3 minus earth.
In such scheme, RF energy respectively enters two rectification branch roads and carries out rectification, one-segment rectification branch through shunt
Road, two-band rectification branch road use the rectifier structure of two multiplication of voltages, can realize twice of output voltage.One-segment rectification branch road is to penetrating
Frequency energy carries out producing positive voltage after rectification, and two-band rectification branch road produces negative voltage, difference after carrying out rectification to RF energy
Voltage output is connected across in DC load.
The first harmonic, which suppresses branch road, includes short circuit capacitance Cf1, short circuit capacitance Cf1 one end and the first voltage multiplying rectifier branch
The output end connection on road, short circuit capacitance Cf1 other end ground connection, one end of load resistance is connected with short circuit capacitance Cf1.
The second harmonic, which suppresses branch road, includes short circuit capacitance Cf2, short circuit capacitance Cf2 one end and the second voltage multiplying rectifier branch
The output end connection on road, short circuit capacitance Cf2 other end ground connection；The other end of load resistance is connected with short circuit capacitance Cf2.
Preferably, the input adapter is SMA pin and box subs.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, two branch roads use different matching networks, carry out one-segment and two-band matching respectively, realize wideband matching effect,
Improve RF energy utilization rate；
2nd, the transmission line in impedance matching network employs grading structure, instead of mutation structure transmission line, expands rectification bandwidth；
3rd, branch road uses the rectifier structure of two multiplication of voltages, improves DC load output voltage；
4th, harmonic wave is suppressed using parallel connection short circuit electric capacity, reduces circuit size, improve integrated level.
Brief description of the drawings
Fig. 1 is the structural representation of rectification circuit.
Fig. 2 is the equivalent schematic of Fig. 1 rectification circuit.
Fig. 3 is the structural circuit figure of another preferred scheme of rectification circuit.
Fig. 4 is the equivalent schematic of Fig. 3 rectification circuit.
Fig. 5 is the curve map of the S11 parameters of Fig. 1 rectification circuit.
Fig. 6 is the rectification efficiency and the curve map of input power of Fig. 1 rectification circuit.
Fig. 7 is the rectification efficiency and the curve map of frequency of Fig. 1 rectification circuit.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
The structure and its principle of the radio frequency rectification circuit of the double branch structures of wideband are 50 ohm by characteristic impedance as shown in Figure 1, 2
Microstrip line as signal input part, through shunt to one-segment branch road and two-band branch road, two branch roads all include resistance
Anti- matching network, voltage multiplying rectifier branch road harmonic suppress branch road.Because the matching network of two branch roads works in different frequency ranges,
Therefore RF energy is after input, through shunt RF energy branch, and one-segment branch road carries out whole to specific single frequency range
Stream, two-band branch road carries out rectification to specific two one-segments.Need to carry out harmonics restraint after voltage multiplying rectifier, it is defeated to filter out
Go out higher harmonic component in voltage.The voltage multiplying rectifier of one branch road is using two times of laminated structures, and DC load produces twice of output electricity
Pressure.
As shown in Figure 1, 2, the radio frequency rectification circuit of the double branch structures of wideband, including shunt 1, one-segment branch road, double frequency
Duan Zhilu and DC load resistance 8, the one-segment branch road include single-frequency impedance matching network 2, the and of the first voltage multiplying rectifier branch road 4
First harmonic suppresses branch road 6, and the two-band branch road includes double frequency impedance matching network 3, the second voltage multiplying rectifier branch road 5 and second
Harmonics restraint branch road 7.Wherein the output end of input adapter is connected with the input of shunt 1, the output end of shunt 1 respectively with
Single-frequency impedance matching network 2 and double frequency impedance matching network 3 input connection, the output end of single-frequency impedance matching network 2 with
The input connection of first voltage multiplying rectifier branch road 4, output end and the first harmonic of the first voltage multiplying rectifier branch road 4 suppress branch road 6
Input is connected；The output end of double frequency impedance matching network 3 is connected with the input of the second voltage multiplying rectifier branch road 5, the second multiplication of voltage
The input that the output end of rectification branch road 5 suppresses branch road 7 with second harmonic is connected；The first harmonic of one-segment branch road suppresses branch road
6 output end and the second harmonic of two-band branch road suppress to bridge DC load resistance 8 between the output end of branch road 7.
In specific implementation process, as shown in figure 1, the single-frequency impedance matching network 2 includes the first tapered transmission lines
21, the second tapered transmission lines 22, the first short-circuit tapered transmission lines 24 of minor matters 23 and the 3rd；Two-band impedance matching network 3 includes
4th tapered transmission lines 31, the 5th tapered transmission lines 32, the second short-circuit tapered transmission lines 34 of minor matters 33 and the 6th.Wherein shunt
The micro belt line width of 1 output end and the micro belt line width of the junction of the first tapered transmission lines 21 are unequal, shunt 1 it is another
The micro belt line width of output end and the micro belt line width of the junction of the 4th tapered transmission lines 31 are unequal.The first of the one-segment
Harmonics restraint branch road 6 includes short circuit capacitance Cf1, and short circuit capacitance Cf1 one end and the output end of the first voltage multiplying rectifier branch road 4 connect
Connect, short circuit capacitance Cf1 other end ground connection, one end of load resistance 8 is connected with short circuit capacitance Cf1 one end.The two-band
Second harmonic suppress branch road 7 and include short circuit capacitance Cf2, the output of short circuit capacitance Cf2 one end and the second voltage multiplying rectifier branch road 5
End connection, short circuit capacitance Cf2 other end ground connection；The other end of load resistance 8 is connected with short circuit capacitance Cf2 one end.
In specific implementation process, as shown in Fig. 2 the first voltage multiplying rectifier branch road 4 of the one-segment include electric capacity C1,
Diode D1, diode D2, the wherein output end of single-frequency impedance matching network 2 are connected by electric capacity C1 and diode D1 anode
Connect, diode D1 negative electrode is connected with the input that first harmonic suppresses branch road 6, diode D2 negative electrode and diode D1 sun
Pole is connected, diode D2 plus earth.Second voltage multiplying rectifier branch road 5 of the two-band includes electric capacity C2, diode D3, two
Pole pipe D4, the wherein output end of double frequency impedance matching network 3 are connected by electric capacity C2 with diode D4 negative electrode, diode D4's
Anode is connected with the input of second harmonic suppression circuit 7, and diode D3 anode is connected with diode D4 negative electrode, diode
D3 minus earth.
In the present embodiment, the working frequency of the one-segment branch road of above-mentioned radio frequency rectification circuit is 2.15GHz frequency ranges, double frequency
Duan Zhilu working frequency is 1.85GHz frequency ranges and 2.45GHz frequency ranges.Wherein, 1.85GHz frequency ranges are general at present
GSM1800 frequency ranges, 2.15GHz frequency ranges are CDMA2000 frequency ranges, and 2.45GHz frequency ranges are conventional WiFi frequency ranges.To above-mentioned radio frequency
The S11 parameters of rectification circuit are tested, and the result specifically tested is as shown in Figure 5.As shown in Figure 5, rectification circuit exists
1.85GHz, 2.2GHz and 2.5GHz return loss（S11）Local Minimum is all reached, because three working frequency range are close, and often
The bandwidth of operation of individual frequency range is wider, thus forms the wideband effect being made up of three frequency ranges, and the energy input of rectification circuit is realized
Maximize.Rectification efficiency to above-mentioned radio frequency rectification circuit is tested, and the result specifically tested is as shown in Figure 6,7.By Fig. 6
Understand, rectification circuit 1.86GHz rectification efficiency up to 62%, 2.26GHz rectification efficiency up to 56%, in the whole of 2.43GHz
Efficiency is flowed up to 50%.As shown in Figure 7, rectification efficiency of the working frequency of rectification circuit from 1.8GHz to 2.55GHz is more than 30%.
Embodiment 2
The structure and its principle of the radio frequency rectification circuit of the double branch structures of the wideband of another preferred scheme as shown in Figure 3,4, by
Characteristic impedance is 50 ohm of microstrip line as signal input part, described through shunt to one-segment branch road and two-band branch road
Two branch roads all include impedance matching network, voltage multiplying rectifier branch road harmonic and suppress branch road.Due to the matching network of two branch roads
Different frequency ranges are worked in, therefore RF energy is after input, through shunt RF energy branch, one-segment branch road is to spy
Order frequency range carries out rectification, and two-band branch road carries out rectification to specific two one-segments.Need to carry out after voltage multiplying rectifier
Harmonics restraint, to filter out higher harmonic component in output voltage.The voltage multiplying rectifier of one branch road is born using two times of laminated structures, direct current
Carry and produce twice of output voltage.
As shown in Figure 3,4, the radio frequency rectification circuit of the double branch structures of the wideband of another preferred scheme, including shunt 1,
One-segment branch road, two-band branch road and DC load resistance 8, the one-segment branch road include single-frequency impedance matching network 2, first
Voltage multiplying rectifier branch road 4 and first harmonic suppress branch road 6, and the two-band branch road includes double frequency impedance matching network 3, the second multiplication of voltage
Rectification branch road 5 and second harmonic suppress branch road 7.Wherein the output end of input adapter is connected with the input of shunt 1, shunt
Input of 1 output end respectively with single-frequency impedance matching network 2 and double frequency impedance matching network 3 is connected, single-frequency impedance matching
The output end of network 2 is connected with the input of the first voltage multiplying rectifier branch road 4, the output end and first of the first voltage multiplying rectifier branch road 4
The input connection of harmonics restraint branch road 6；The output end of double frequency impedance matching network 3 and the input of the second voltage multiplying rectifier branch road 5
End connection, the output end of the second voltage multiplying rectifier branch road 5 is connected with the input that second harmonic suppresses branch road 7；One-segment branch road
First harmonic suppresses the output end of branch road 6 and the second harmonic of two-band branch road suppresses to bridge direct current between the output end of branch road 7
Load resistance 8.
In specific implementation process, as shown in figure 3, the single-frequency impedance matching network 2 includes the first tapered transmission lines
21, the second tapered transmission lines 22, the 3rd tapered transmission lines 23, the first short-circuit tapered transmission lines 25 of minor matters 24 and the 4th；Two-band
Impedance matching network 3 includes the 5th tapered transmission lines 31, the 6th tapered transmission lines 32, the 7th tapered transmission lines 33, the second short circuit
The tapered transmission lines 35 of minor matters 34 and the 8th.Wherein the micro belt line width of the output end of shunt 1 connects with the first tapered transmission lines 21
The micro belt line width for meeting place is equal, the micro belt line width of another output end of shunt 1 and the junction of the 5th tapered transmission lines 31
Micro belt line width it is equal.The first harmonic of the one-segment, which suppresses branch road 6, includes short circuit capacitance Cf1, the one of short circuit capacitance Cf1
End is connected with the output end of the first voltage multiplying rectifier branch road 4, and the short circuit capacitance Cf1 other end is grounded, one end of load resistance 8 with it is short
Road electric capacity Cf1 one end connection.The second harmonic of the two-band, which suppresses branch road 7, includes short circuit capacitance Cf2, short circuit capacitance Cf2
One end be connected with the output end of the second voltage multiplying rectifier branch road 5, short circuit capacitance Cf2 other end ground connection；Load resistance 8 it is another
End is connected with short circuit capacitance Cf2 one end.
In specific implementation process, as shown in figure 4, the first voltage multiplying rectifier branch road 4 of the one-segment include electric capacity C1,
Diode D1, diode D2, the wherein output end of single-frequency impedance matching network 2 are connected by electric capacity C1 and diode D1 anode
Connect, diode D1 negative electrode is connected with the input that first harmonic suppresses branch road 6, diode D2 negative electrode and diode D1 sun
Pole is connected, diode D2 plus earth.Second voltage multiplying rectifier branch road 5 of the two-band includes electric capacity C2, diode D3, two
Pole pipe D4, the wherein output end of double frequency impedance matching network 3 are connected by electric capacity C2 with diode D4 negative electrode, diode D4's
Anode is connected with the input of second harmonic suppression circuit 7, and diode D3 anode is connected with diode D4 negative electrode, diode
D3 minus earth.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Any modifications, equivalent substitutions and improvements made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (7)
1. a kind of radio frequency rectification circuit of the double branch structures of wideband, it is characterised in that including input adapter, shunt, in addition to
One-segment branch road and two-band branch road；
Wherein described one-segment branch road includes single-frequency impedance matching network, the first voltage multiplying rectifier branch road and first harmonic and suppresses branch
The output end connection on road, the wherein input of single-frequency impedance matching network and shunt, the output end of single-frequency impedance matching network
It is connected with the input of the first voltage multiplying rectifier branch road, output end and the first harmonic of the first voltage multiplying rectifier branch road suppress the defeated of branch road
Enter end connection；
The two-band branch road includes double frequency impedance matching network, the second voltage multiplying rectifier branch road and second harmonic and suppresses branch road, its
Another output end of the input of middle double frequency impedance matching network and shunt is connected, the output end of double frequency impedance matching network with
The input connection of second voltage multiplying rectifier branch road, the output end of the second voltage multiplying rectifier branch road suppresses the input of branch road with second harmonic
End connection；
Radio frequency rectification circuit is set up with radio frequency source by input adapter and is connected, the input connection of input adapter and shunt, single
Frequency range branch road carries out rectification to the RF energy of a frequency range, and two-band branch road carries out rectification to the RF energy of two frequency ranges,
Shunt is used to make the RF energy of input be shunted to two output ends.
2. a kind of radio frequency rectification circuit of the double branch structures of wideband according to claim 1, it is characterised in that the single-frequency
Impedance matching network includes the first tapered transmission lines, the second tapered transmission lines, the first short-circuit minor matters, the 3rd tapered transmission lines, its
In one end of the first tapered transmission lines and the output end of shunt connect, the other end of the first tapered transmission lines and the second gradual change biography
One end of one end connection of defeated line, the other end of the second tapered transmission lines and the 3rd tapered transmission lines and the one of the first short-circuit minor matters
End connection, the other end of the first short-circuit minor matters is grounded the input of the other end and the first voltage multiplying rectifier branch road of the 3rd tapered transmission lines
End connection.
3. a kind of radio frequency rectification circuit of the double branch structures of wideband according to claim 1, it is characterised in that the double frequency
Impedance matching network includes the 4th tapered transmission lines, the 5th tapered transmission lines, the second short-circuit minor matters, the 6th tapered transmission lines, its
In the 4th tapered transmission lines one end and shunt another output end connect, the other end and the 5th of the 4th tapered transmission lines is gradually
Become one end connection of transmission line, the other end of the 5th tapered transmission lines and one end of the 6th tapered transmission lines and the second short-circuit minor matters
One end connection, the other end ground connection of the second short-circuit minor matters, the other end of the 6th tapered transmission lines and the second voltage multiplying rectifier branch road
Input connection.
4. the radio frequency rectification circuit of the double branch structures of a kind of wideband according to claim 1, it is characterised in that described first
Voltage multiplying rectifier branch road includes electric capacity C1, diode D1, diode D2, and the output end of wherein single-frequency impedance matching network passes through electric capacity
C1 is connected with diode D1 anode, and diode D1 negative electrode is connected with the input that first harmonic suppresses branch road, diode D2
Negative electrode be connected with diode D1 anode, diode D2 plus earth；
The second voltage multiplying rectifier branch road includes electric capacity C2, diode D3, diode D4, and wherein double frequency impedance matching network is defeated
Go out end to be connected with diode D4 negative electrode by electric capacity C2, diode D4 anode connects with the input of second harmonic suppression circuit
Connect, diode D3 anode is connected with diode D4 negative electrode, diode D3 minus earth.
5. the radio frequency rectification circuit of the double branch structures of a kind of wideband according to claim 1, it is characterised in that described first
Harmonics restraint branch road includes short circuit capacitance Cf1, and short circuit capacitance Cf1 one end is connected with the output end of the first voltage multiplying rectifier branch road,
Short circuit capacitance Cf1 other end ground connection, one end of load resistance is connected with short circuit capacitance Cf1.
6. described in second harmonic suppress branch road and include short circuit capacitance Cf2, short circuit capacitance Cf2 one end and the second voltage multiplying rectifier branch road
Output end connection, short circuit capacitance Cf2 the other end ground connection；The other end of load resistance is connected with short circuit capacitance Cf2.
7. a kind of radio frequency rectification circuit of the double branch structures of wideband according to claim 1, it is characterised in that the input
Joint is SMA pin and box subs.
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| CN107612374A (en) * | 2017-09-22 | 2018-01-19 | 扬州芯智瑞电子科技有限公司 | A kind of charge pump rectifier and RF energy method for transformation |
| CN109244647A (en) * | 2018-09-16 | 2019-01-18 | 苏州芯智瑞微电子有限公司 | A kind of compact dual-linear polarization modified Greinacher RECTIFYING ANTENNA structure |
| CN109449612A (en) * | 2018-11-16 | 2019-03-08 | 东莞理工学院 | A kind of integrated commutation antenna with harmonics restraint |
| CN112928826A (en) * | 2021-01-26 | 2021-06-08 | 河南师范大学 | Design method of wireless power transmission system with broadband rectification output |
| CN113659853A (en) * | 2021-08-12 | 2021-11-16 | 西北大学 | Single-branch multi-frequency-band radio frequency rectification circuit |
| CN113852212A (en) * | 2021-09-14 | 2021-12-28 | 中山大学 | Broadband energy collector based on hybrid environment energy |
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| CN107612374A (en) * | 2017-09-22 | 2018-01-19 | 扬州芯智瑞电子科技有限公司 | A kind of charge pump rectifier and RF energy method for transformation |
| CN107612374B (en) * | 2017-09-22 | 2019-08-09 | 扬州芯智瑞电子科技有限公司 | A kind of charge pump rectifier and RF energy method for transformation |
| CN109244647A (en) * | 2018-09-16 | 2019-01-18 | 苏州芯智瑞微电子有限公司 | A kind of compact dual-linear polarization modified Greinacher RECTIFYING ANTENNA structure |
| CN109449612A (en) * | 2018-11-16 | 2019-03-08 | 东莞理工学院 | A kind of integrated commutation antenna with harmonics restraint |
| CN109449612B (en) * | 2018-11-16 | 2024-01-05 | 东莞理工学院 | Integrated rectifying antenna with harmonic suppression |
| CN112928826A (en) * | 2021-01-26 | 2021-06-08 | 河南师范大学 | Design method of wireless power transmission system with broadband rectification output |
| CN112928826B (en) * | 2021-01-26 | 2023-01-24 | 河南师范大学 | Design method of wireless power transmission system with broadband rectification output |
| CN113659853A (en) * | 2021-08-12 | 2021-11-16 | 西北大学 | Single-branch multi-frequency-band radio frequency rectification circuit |
| CN113852212A (en) * | 2021-09-14 | 2021-12-28 | 中山大学 | Broadband energy collector based on hybrid environment energy |
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