CN107612392A - A kind of multifrequency rectification circuit based on improvement mixing ring - Google Patents
A kind of multifrequency rectification circuit based on improvement mixing ring Download PDFInfo
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Abstract
The present invention relates to a kind of based on the multifrequency rectification circuit for improving mixing ring, including input adapter, improved mixing ring, including low-frequency range branch road, Mid Frequency branch road and high band branch road, wherein input adapter is connected with improved mixing ring input, wherein described low-frequency range branch road includes low-frequency impedance matching network, the voltage multiplying rectifier branch road of low-frequency range and the harmonics restraint branch road of low-frequency range, the Mid Frequency branch road includes intermediate frequency impedance matching network, the voltage multiplying rectifier branch road of Mid Frequency and the harmonics restraint branch road of Mid Frequency, the high band branch road includes high-frequency resistance matching network, the voltage multiplying rectifier branch road of high band and the harmonics restraint branch road of high band.Three output ends of improved mixing ring are connected with low-frequency range branch road, Mid Frequency branch road and high band branch road respectively, and improved mixing ring plays the role of matching and branch.
Description
Technical field
The present invention relates to wireless energy transfer field, more particularly, to a kind of whole based on the multifrequency for improving mixing ring
Current circuit.
Background technology
Relative to traditional energy acquisition mode, RF energy acquisition technique has incomparable in many application scenarios
Advantage, such as radio sensing network, internal Medical Devices power supply etc. low power dissipation electron equipment network scene.
In wireless sense network field, energy that the power supply mode of node can be spread by collecting in environment, such as wind energy, heat
Energy, kinetic energy, solar energy etc., traditional energy acquisition are limited by region and weather conditions, can only be applied in specific area, about
Beam practical application scene.In the technology of various collection of energy, one kind be present by mobile phone communication base station, television broadcast towers
The wireless energy collection technique that the electromagnetic signal sent is collected.Outdoor or indoor, microwave energy has mobility, green
Color is free, not by the characteristics of environment is influenceed round the clock, the microwave energy of fixed frequency range is collected by RECTIFYING ANTENNA, for various low work(
Consume wireless sensing node work.
Because electromagnetic power density is smaller in actual environment, a kind of broadband is designed, efficient radio frequency rectification circuit is
It is very in need.But the size of traditional RECTIFYING ANTENNA is larger, integrated difficulty is higher, and operational frequency bandwidth is narrower, and conversion
Less efficient, the use in many application scenarios is all limited by larger.
The content of the invention
To solve the problem of above prior art, the present invention combines mixing ring structure, multiple branch circuit rectifier structure, voltage multiplie knot
The characteristics of structure, multifrequency/wideband rectification, there is provided a kind of based on the multifrequency rectification circuit for improving mixing ring, the rectification circuit has low
Frequency range branch road, Mid Frequency branch road and high band branch road, rectification is carried out to the RF energy of three frequency ranges, realizes and three frequency ranges is penetrated
The collection of frequency energy, therefore the effect for improving capacity usage ratio can be reached.
To realize above goal of the invention, the technical solution adopted by the present invention is：
A kind of multifrequency rectification circuit based on improvement mixing ring, including input adapter, improved mixing ring, low-frequency range branch
Road, Mid Frequency branch road and high band branch road；
Wherein described low-frequency range branch road includes low-frequency impedance matching network, the voltage multiplying rectifier branch road of low-frequency range and low-frequency range
Harmonics restraint branch road, the wherein input of low-frequency impedance matching network are connected with the first output end of improved mixing ring, low frequency
The input of the output end of impedance matching network and the voltage multiplying rectifier branch road of low-frequency range connects, the voltage multiplying rectifier branch road of low-frequency range
The input connection of the harmonics restraint branch road of output end and low-frequency range；
The Mid Frequency branch road includes intermediate frequency impedance matching network, the voltage multiplying rectifier branch road of Mid Frequency and the harmonic wave of Mid Frequency
Suppress branch road, the wherein input of intermediate frequency impedance matching network is connected with the second output end of improved mixing ring, intermediate frequency impedance
The input of the output end of matching network and the voltage multiplying rectifier branch road of Mid Frequency connects, the output of the voltage multiplying rectifier branch road of Mid Frequency
End is connected with the input of the harmonics restraint branch road of Mid Frequency；
The high band branch road includes high-frequency resistance matching network, the voltage multiplying rectifier branch road of high band and the harmonic wave of high band
Suppress branch road, the wherein input of high-frequency resistance matching network is connected with the 3rd output end of improved mixing ring, high-frequency resistance
The input of the output end of matching network and the voltage multiplying rectifier branch road of high band connects, the output of the voltage multiplying rectifier branch road of high band
End is connected with the input of the harmonics restraint branch road of high band；
Multifrequency rectification circuit is established by input adapter and radio frequency source and connected, wherein input adapter with improved to mix ring defeated
Enter end connection, low-frequency range branch road carries out rectification to the RF energy of low-frequency range, and Mid Frequency branch road enters to the RF energy of Mid Frequency
Row rectification, high band branch road carry out rectification to the RF energy of high band, and improved mixing ring is used to make different frequencies in input
The RF energy of rate is matched and is shunted to each output end, wherein low-frequency range branch road, Mid Frequency branch road and high band branch road
Low-frequency impedance matching network, intermediate frequency impedance matching network and high-frequency resistance matching network are inside respectively arranged with, for carrying out impedance
Matching, is all matched to 50 ohm, from input adapter by the input impedance of low-frequency range branch road, Mid Frequency branch road and high band branch road
See, realize the impedance matching of three frequency ranges.
Preferably, the improved mixing ring includes the first transmission line, the first open circuit minor matters, the second open circuit minor matters, the 3rd
Open circuit minor matters, the first bending transmission line, the second bending transmission line, the 3rd bending transmission line and the 4th bending transmission line, wherein the
One end of one transmission line is connected with input adapter, the other end of the first transmission line respectively with one end of the first bending transmission line and the
One end connection of four bending transmission lines；The other end of first bending transmission line one end with the first open circuit minor matters, second curved respectively
One end of bent transmission line, the input connection of intermediate frequency impedance matching network；The other end of second bending transmission line is respectively with second
Open circuit minor matters, one end connection of the 3rd bending transmission line, the input connection of high-frequency resistance matching network；3rd bending transmission line
The other end respectively with the 3rd open circuit minor matters, the 4th bending transmission line one end be connected, the input of low-frequency impedance matching network
Connection；The one end of the other end of 4th bending transmission line respectively with the first transmission line, the first bending transmission line is connected.
Preferably, the low-frequency impedance matching network includes the second transmission line and the first short-circuit minor matters, wherein the second transmission
One end of line is connected with the 3rd output end of improved mixing ring, one end of the other end of the second transmission line and the first short-circuit minor matters
Connection, the other end ground connection of the first short-circuit minor matters, the other end of the second transmission line are also defeated with the voltage multiplying rectifier branch road of low-frequency range
Enter end connection；
The intermediate frequency impedance matching network includes the 3rd transmission line and the second short-circuit minor matters, wherein one end of the 3rd transmission line
It is connected with the first output end of improved mixing ring, the other end of the 3rd transmission line is connected with one end of the second short-circuit minor matters, the
The input of the other end ground connection of two short-circuit minor matters, the other end of the 3rd transmission line and the voltage multiplying rectifier branch road of Mid Frequency connects；
The high-frequency resistance matching network includes the 4th transmission line, wherein one end of the 4th transmission line mixes ring with improved
The connection of the second output end, the input of the other end of the 4th transmission line and the voltage multiplying rectifier branch road of high band connects.
Preferably, the voltage multiplying rectifier branch road of the low-frequency range includes electric capacity C3, diode D5, wherein diode D6, low frequency
The output end of section impedance matching network is connected by electric capacity C3 with diode D5 negative electrode, diode D5 anode and low-frequency range
The input connection of harmonics restraint branch road, diode D6 anode are connected with diode D5 negative electrode, and diode D6 negative electrode connects
Ground；The output head grounding of the harmonics restraint branch road of low-frequency range；
The voltage multiplying rectifier branch road of the Mid Frequency includes electric capacity C1, diode D1, diode D2, wherein Mid Frequency impedance
The output end of distribution network is connected by electric capacity C1 with diode D1 anode, diode D1 negative electrode and the harmonics restraint of Mid Frequency
The input connection of branch road, diode D2 negative electrode is connected with diode D1 anode, diode D2 anode and Mid Frequency
The output end connection of harmonics restraint branch road；
The voltage multiplying rectifier branch road of the high band includes electric capacity C2, diode D3, diode D4, wherein high band impedance
The output end of distribution network is connected by electric capacity C2 with diode D3 anode, diode D3 negative electrode and the harmonics restraint of high band
The input connection of branch road, diode D4 negative electrode are connected with diode D4 anode, diode D4 plus earth；High band
Harmonics restraint branch road output end and low-frequency range harmonics restraint branch road output end connect, the harmonics restraint branch road of high band
Output end of the input also with the harmonics restraint branch road of Mid Frequency be connected.
Preferably, the harmonics restraint branch road of the low-frequency range is electric capacity Cf3, and the harmonics restraint branch road of Mid Frequency is electric capacity
Cf1, the harmonics restraint branch road of high band is electric capacity Cf2.Preferably, the improved mixing ring of the RF energy of input adapter,
Respectively enter three rectification branch roads and carry out rectification, low-frequency range rectification branch road, Mid Frequency rectification branch road and high band rectification branch road are equal
Using the rectifier structure of two multiplication of voltages；Mid Frequency rectification branch road and high band rectification branch road produce just after carrying out rectification to RF energy
Voltage, low-frequency range rectification branch road produce negative voltage, Mid Frequency rectification branch road and high band rectification after carrying out rectification to RF energy
Two positive voltages are added up by electric capacity Cf1 and electric capacity Cf2 caused by branch road, cumulative positive voltage and low-frequency range rectification branch road
Caused negative voltage difference connection, output are connected across in DC load.
Preferably, in order to save overall dimensions size, the low-frequency range branch road, Mid Frequency branch road and the equal position of high band branch road
Inside improved mixing ring.
Preferably, the input adapter is SMA pin and box subs.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, using improved mixing ring, compared with conventional hybrid ring, the output end of improved mixing ring has RF energy
Output, three output end difference output low frequency sections, Mid Frequency and high band to three rectification branch roads, improved mixing ring have matching
With the effect of branch；
2nd, three rectification branch roads use different matching networks, respectively to the implementation of low-frequency range, Mid Frequency and high band
Match somebody with somebody, improve RF energy utilization rate；
3rd, for two rectification branch roads using the rectifier structure of output positive voltage, a rectification branch road, which uses, exports the whole of negative voltage
Flow structure, two positive voltages add up, are connected with negative voltage difference, flexibly handle the output voltage of three rectification branch roads；
4th, rectification branch road uses the rectifier structure of two multiplication of voltages, improves DC load output voltage；
5th, suppress harmonic wave and minor matters microstrip line is replaced using shunt capacitance, reduce 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 curve map of the S11 parameters of Fig. 1 rectification circuit.
Fig. 4 is Fig. 1 rectification efficiency of rectification circuit and the curve map of input power.
Fig. 5 is Fig. 1 rectification efficiency of rectification circuit and the curve map of frequency.
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 pair
The present invention is further elaborated.
Embodiment 1
Structure and its principle based on the multifrequency rectification circuit for improving mixing ring are 50 by characteristic impedance as shown in Figure 1, 2
The microstrip line of ohm is as signal input part, improved mixing ring tremendously low frequency section branch road, Mid Frequency branch road and high band branch road,
Three branch roads all include impedance matching network, voltage multiplying rectifier branch road harmonic suppresses branch road.The matching network of three branch roads
Different frequency ranges is worked in, RF energy is after input adapter, and the input of improved mixing ring enters mixing ring, to penetrating
After frequency energy branch and matching, three output ends of improved mixing ring are to three branch roads, and low-frequency range branch road is to specific low
Frequency range carries out rectification, and Mid Frequency branch road carries out rectification to specific Mid Frequency, and high band branch road carries out whole to specific high band
Stream.Need to carry out harmonics restraint after voltage multiplying rectifier, to filter out higher harmonic component in output voltage.
As shown in Fig. 2 based on improve mixing ring multifrequency rectification circuit, including it is improved mixing ring 1, low-frequency range branch road,
Mid Frequency branch road, high band branch road and DC load resistance 9, the low-frequency range branch road include low-frequency range impedance matching network 4, low
The voltage multiplying rectifier branch road 7 of frequency range and the harmonics restraint branch road of low-frequency range, wherein the harmonics restraint branch road of low-frequency range are electric capacity Cf3,
The Mid Frequency branch road includes Mid Frequency impedance matching network 2, the voltage multiplying rectifier branch road 5 of Mid Frequency and the harmonics restraint of Mid Frequency
The harmonics restraint branch road of branch road, wherein Mid Frequency is electric capacity Cf1, the high band branch road include high band impedance matching network 3,
The voltage multiplying rectifier branch road 6 of high band and the harmonics restraint branch road of high band, wherein the harmonics restraint branch road of high band are electric capacity
Cf2.Electric capacity Cf1, electric capacity Cf2 and electric capacity Cf3 harmonics restraint branch roads 8 in series.
Wherein the output end of input adapter is connected with improving the input of mixing ring 1, improves the first output end of mixing ring 1
It is connected with the input of Mid Frequency impedance matching network 2, improves the second output end and high band impedance matching network of mixing ring 1
3 input connection, the 3rd output end for improving mixing ring 1 are connected with the input of low-frequency range impedance matching network 4.Low-frequency range
The input of the output end of impedance matching network 4 and the voltage multiplying rectifier branch road 7 of low-frequency range connects, the voltage multiplying rectifier branch road of low-frequency range
7 output end is connected with Cf3；The input of the output end of Mid Frequency impedance matching network 2 and the voltage multiplying rectifier branch road 5 of Mid Frequency
Connection, the output end of the voltage multiplying rectifier branch road 5 of Mid Frequency are connected with Cf1；The output end and high frequency of high band impedance matching network 3
The input connection of the voltage multiplying rectifier branch road 6 of section, the output end of the voltage multiplying rectifier branch road 6 of high band are connected with Cf2；Harmonics restraint
DC load resistance 9 is bridged between the Cf1 and Cf3 of branch road 8.
In specific implementation process, as shown in figure 1, the improved mixing ring 1 is opened including the first transmission line 11, first
The open circuit open circuit minor matters 14, first of minor matters the 13, the 3rd of road minor matters 12, second bend transmission line 15, second and bend transmission line the 16, the 3rd
Bend transmission line 17 and the 4th and bend transmission line 18, wherein one end of the first transmission line 11 is connected with input adapter, the first transmission
The other end of line 11 is connected with one end of the first bending transmission line 15 and one end of the 4th bending transmission line 18 respectively；First bending
One end with the first open circuit minor matters 12, one end of the second bending transmission line 16, the intermediate frequency impedance respectively of the other end of transmission line 15
The input connection of distribution network 2；The other end of second bending transmission line 16 transmits with the second open circuit bending of minor matters the 13, the 3rd respectively
One end connection of line 17, the input connection of high-frequency resistance matching network 3；The other end of 3rd bending transmission line 17 is respectively with the
Three open circuit minor matters the 14, the 4th bend one end connection of transmission line 18, the input connection of low-frequency impedance matching network 4；4th is curved
The one end of the other end of bent transmission line 18 respectively with the first transmission line 11, first bending transmission line 15 is connected.
The low-frequency impedance matching network 4 includes the second transmission line 41 and the first short-circuit minor matters 42, wherein the second transmission line
41 one end is connected with the 3rd output end of improved mixing ring 1, the other end of the second transmission line 41 and the first short-circuit minor matters 42
One end connection, the other end ground connection of the first short-circuit minor matters 42, the other end of the second transmission line 41 and the voltage multiplying rectifier of low-frequency range
The input connection of branch road 7；The intermediate frequency impedance matching network 2 includes the 3rd transmission line 21 and the second short-circuit minor matters 22, wherein
One end of 3rd transmission line 21 is connected with the first output end of improved mixing ring 1, the other end and second of the 3rd transmission line 21
One end connection of short-circuit minor matters 22, the other end ground connection of the second short-circuit minor matters 22, the other end and Mid Frequency of the 3rd transmission line 21
Voltage multiplying rectifier branch road 5 input connection；The high-frequency resistance matching network 3 includes the 4th transmission line 31, wherein the 4th passes
One end of defeated line 31 is connected with the second output end of improved mixing ring 1, the other end of the 4th transmission line 31 and times of high band
The input connection of repoussage stream branch road 6.
In specific implementation process, as shown in Fig. 2 the voltage multiplying rectifier branch road 7 of the low-frequency range includes electric capacity C3, two poles
Pipe D5, diode D6, the wherein output end of low-frequency range impedance matching network 4 are connected by electric capacity C3 with diode D5 negative electrode,
Diode D5 anode is connected with the Cf3 in harmonics restraint branch road 8, and diode D6 anode is connected with diode D5 negative electrode,
Diode D6 minus earth；The voltage multiplying rectifier branch road 5 of the Mid Frequency includes electric capacity C1, diode D1, diode D2, wherein
The output end of Mid Frequency impedance matching network 2 is connected by electric capacity C1 with diode D1 anode, diode D1 negative electrode with it is humorous
Ripple suppresses short circuit capacitance Cf1 one end connection in branch road 8, and diode D2 negative electrode is connected with diode D1 anode, diode
D2 anode is connected with the short circuit capacitance Cf1 other end；The voltage multiplying rectifier branch road 6 of the high band includes electric capacity C2, diode
D3, diode D4, the wherein output end of high band impedance matching network 3 are connected by electric capacity C2 with diode D3 anode, and two
Pole pipe D3 negative electrode is connected with the Cf2 in harmonics restraint branch road 8, and diode D4 negative electrode is connected with diode D4 anode, and two
Pole pipe D4 plus earth.
In the present embodiment, the working frequency of the low-frequency range branch road of above-mentioned multifrequency rectification circuit is 1.85GHz frequency ranges, intermediate frequency
Duan Zhilu working frequency is 2.1GHz frequency ranges, and the working frequency of high band branch road is 2.45GHz frequency ranges.Wherein, 1.85GHz frequencies
Section is GSM1800 frequency ranges general at present, and 2.1GHz frequency ranges are CDMA2000 frequency ranges, and 2.45GHz frequency ranges are conventional WiFi frequencies
Section.The S11 parameters of above-mentioned multifrequency rectification circuit are tested, the result specifically tested is as shown in Figure 3.It is from the figure 3, it may be seen that whole
Return loss (S11) of the current circuit in 1.85GHz, 2.1GHz and 2.45GHz all reaches Local Minimum, and the energy of rectification circuit is defeated
Enter to realize and maximize.The rectification efficiency of above-mentioned multifrequency rectification circuit is tested, the result specifically tested such as Fig. 4,5 institutes
Show, as shown in Figure 4, rectification circuit 1.87GHz rectification efficiency up to 61.7%, as shown in Figure 5, rectification circuit for
The rectification efficiency of GSM1800 frequency ranges, CDMA2000 frequency ranges and WiFi frequency ranges is more than 35%.
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
All any modification, equivalent and improvement 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. it is a kind of based on improve mixing ring multifrequency rectification circuit, it is characterised in that including input adapter, it is improved mixing ring,
Low-frequency range branch road, Mid Frequency branch road and high band branch road；
Wherein described low-frequency range branch road includes low-frequency impedance matching network, the voltage multiplying rectifier branch road of low-frequency range and the harmonic wave of low-frequency range
Suppress branch road, the wherein input of low-frequency impedance matching network is connected with the first output end of improved mixing ring, low-frequency impedance
The input of the output end of matching network and the voltage multiplying rectifier branch road of low-frequency range connects, the output of the voltage multiplying rectifier branch road of low-frequency range
End is connected with the input of the harmonics restraint branch road of low-frequency range；
The Mid Frequency branch road includes intermediate frequency impedance matching network, the voltage multiplying rectifier branch road of Mid Frequency and the harmonics restraint of Mid Frequency
Branch road, the wherein input of intermediate frequency impedance matching network are connected with the second output end of improved mixing ring, intermediate frequency impedance matching
The input of the output end of network and the voltage multiplying rectifier branch road of Mid Frequency connect, the output end of the voltage multiplying rectifier branch road of Mid Frequency with
The input connection of the harmonics restraint branch road of Mid Frequency；
The high band branch road includes high-frequency resistance matching network, the voltage multiplying rectifier branch road of high band and the harmonics restraint of high band
Branch road, the wherein input of high-frequency resistance matching network are connected with the 3rd output end of improved mixing ring, high-frequency resistance matching
The input of the output end of network and the voltage multiplying rectifier branch road of high band connect, the output end of the voltage multiplying rectifier branch road of high band with
The input connection of the harmonics restraint branch road of high band；
Multifrequency rectification circuit is established by input adapter and radio frequency source and connected, and wherein input adapter mixes ring input with improved
Connection, low-frequency range branch road carry out rectification to the RF energy of low-frequency range, and Mid Frequency branch road carries out whole to the RF energy of Mid Frequency
Stream, high band branch road carry out rectification to the RF energy of high band, and improved mixing ring is used to make different frequency in input
RF energy is matched and is shunted to each output end, is wherein divided in low-frequency range branch road, Mid Frequency branch road and high band branch road
Low-frequency impedance matching network, intermediate frequency impedance matching network and high-frequency resistance matching network are not provided with, for carrying out impedance matching,
The input impedance of low-frequency range branch road, Mid Frequency branch road and high band branch road is all matched to 50 ohm, in terms of input adapter, realized
The impedance matching of three frequency ranges.
It is 2. according to claim 1 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that the improvement
Mixing ring include the first transmission line, first open circuit minor matters, second open circuit minor matters, the 3rd open circuit minor matters, first bending transmission line,
Second bending transmission line, the 3rd bending transmission line and the 4th bending transmission line, wherein one end of the first transmission line and input adapter
Connection, the other end of the first transmission line are connected with one end of the first bending transmission line and one end of the 4th bending transmission line respectively；
One end with the first open circuit minor matters, one end of the second bending transmission line, the intermediate frequency impedance respectively of the other end of first bending transmission line
The input connection of matching network；The other end of second bending transmission line bends transmission line with the second open circuit minor matters, the 3rd respectively
One end connection, high-frequency resistance matching network input connection；The other end of 3rd bending transmission line is opened a way with the 3rd respectively
Minor matters, one end connection of the 4th bending transmission line, the input connection of low-frequency impedance matching network；4th bends the another of transmission line
The one end of one end respectively with the first transmission line, the first bending transmission line is connected.
It is 3. according to claim 1 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that the low frequency
Impedance matching network includes the second transmission line and the first short-circuit minor matters, wherein one end of the second transmission line and the improved ring that mixes
3rd output end connects, and the other end of the second transmission line is connected with one end of the first short-circuit minor matters, the first short-circuit minor matters it is another
End ground connection, the input of the other end of the second transmission line also with the voltage multiplying rectifier branch road of low-frequency range are connected；
The intermediate frequency impedance matching network includes the 3rd transmission line and the second short-circuit minor matters, wherein one end of the 3rd transmission line is with changing
The first output end connection of the mixing ring entered, the other end of the 3rd transmission line are connected with one end of the second short-circuit minor matters, and second is short
The input of the other end ground connection of road minor matters, the other end of the 3rd transmission line and the voltage multiplying rectifier branch road of Mid Frequency connects；
The high-frequency resistance matching network includes the 4th transmission line, wherein one end of the 4th transmission line mixes the of ring with improved
Two output ends connect, and the input of the other end of the 4th transmission line and the voltage multiplying rectifier branch road of high band connects.
It is 4. according to claim 1 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that the low frequency
The voltage multiplying rectifier branch road of section includes electric capacity C3, diode D5, diode D6, and the output end of wherein low-frequency range impedance matching network is led to
The negative electrode that electric capacity C3 is crossed with diode D5 is connected, and the input of diode D5 anode and the harmonics restraint branch road of low-frequency range connects
Connect, diode D6 anode is connected with diode D5 negative electrode, diode D6 minus earth；The harmonics restraint branch road of low-frequency range
Output head grounding；
The voltage multiplying rectifier branch road of the Mid Frequency includes electric capacity C1, diode D1, wherein diode D2, Mid Frequency impedance matching net
The output end of network is connected by electric capacity C1 with diode D1 anode, diode D1 negative electrode and the harmonics restraint branch road of Mid Frequency
Input connection, diode D2 negative electrode is connected with diode D1 anode, diode D2 anode and the harmonic wave of Mid Frequency
Suppress the output end connection of branch road；
The voltage multiplying rectifier branch road of the high band includes electric capacity C2, diode D3, wherein diode D4, high band impedance matching net
The output end of network is connected by electric capacity C2 with diode D3 anode, diode D3 negative electrode and the harmonics restraint branch road of high band
Input connection, diode D4 negative electrode is connected with diode D4 anode, diode D4 plus earth；High band it is humorous
Ripple suppress branch road output end and low-frequency range harmonics restraint branch road output end connect, the harmonics restraint branch road of high band it is defeated
Enter output end of the end also with the harmonics restraint branch road of Mid Frequency to be connected.
It is 5. according to claim 1 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that the low frequency
The harmonics restraint branch road of section is electric capacity Cf3, and the harmonics restraint branch road of Mid Frequency is electric capacity Cf1, the harmonics restraint branch road of high band
For electric capacity Cf2.
It is 6. according to claim 5 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that input adapter
The improved mixing ring of RF energy, respectively enter three rectification branch roads and carry out rectifications, low-frequency range rectification branch road, Mid Frequency
Rectification branch road and high band rectification branch road use the rectifier structure of two multiplication of voltages；Mid Frequency rectification branch road and high band rectification branch road
Positive voltage is produced after rectification is carried out to RF energy, low-frequency range rectification branch road produces negative voltage after carrying out rectification to RF energy,
Two positive voltages caused by Mid Frequency rectification branch road and high band rectification branch road are added up by electric capacity Cf1 and electric capacity Cf2, are tired out
The positive voltage added is connected with negative voltage difference caused by low-frequency range rectification branch road, and output is connected across in DC load.
It is 7. according to claim 1 a kind of based on the multifrequency rectification circuit for improving mixing ring, it is characterised in that the input
Joint is SMA pin and box subs.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683340A (en) * | 2018-05-03 | 2018-10-19 | 佛山市顺德区中山大学研究院 | A kind of multi-frequency band radio-frequency rectification circuit |
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| CN105098336A (en) * | 2015-09-14 | 2015-11-25 | 重庆大学 | Miniature multi-band antenna based on asymmetrical coplanar feeding |
| CN106992359A (en) * | 2017-01-13 | 2017-07-28 | 瑞声科技(新加坡)有限公司 | Antenna system |
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| CN101888688A (en) * | 2010-04-15 | 2010-11-17 | 新邮通信设备有限公司 | Time division duplex radio remote unit |
| CN104659499A (en) * | 2015-02-28 | 2015-05-27 | 西安电子科技大学 | Multi-band radio frequency energy acquisition system |
| CN105098336A (en) * | 2015-09-14 | 2015-11-25 | 重庆大学 | Miniature multi-band antenna based on asymmetrical coplanar feeding |
| CN106992359A (en) * | 2017-01-13 | 2017-07-28 | 瑞声科技(新加坡)有限公司 | Antenna system |
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| CN108683340A (en) * | 2018-05-03 | 2018-10-19 | 佛山市顺德区中山大学研究院 | A kind of multi-frequency band radio-frequency rectification circuit |
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