CN113852212A - Broadband energy collector based on hybrid environment energy - Google Patents
Broadband energy collector based on hybrid environment energy Download PDFInfo
- Publication number
- CN113852212A CN113852212A CN202111072345.4A CN202111072345A CN113852212A CN 113852212 A CN113852212 A CN 113852212A CN 202111072345 A CN202111072345 A CN 202111072345A CN 113852212 A CN113852212 A CN 113852212A
- Authority
- CN
- China
- Prior art keywords
- energy
- harmonic
- network
- broadband
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001629 suppression Effects 0.000 claims abstract description 45
- 230000007613 environmental effect Effects 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 8
- 238000011084 recovery Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Rectifiers (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a broadband energy collector based on hybrid environment energy. The broadband energy collector comprises a mixed environment energy input network, a rectification-harmonic guide network and a harmonic suppression network, wherein the mixed environment energy input network is used for being connected with a first energy and a second energy, part of ports of the rectification-harmonic guide network are in one-way conduction, a harmonic guide passage is arranged from a fourth end to a fifth end, and the harmonic suppression network comprises a first harmonic suppression unit and a second harmonic suppression unit. After receiving the mixed energy in the environment, the broadband energy collector can carry out rectification through a Schottky diode; the photovoltaic panel provides positive voltage bias for the diode, so that the rectification conduction angle during low-power electromagnetic energy input can be increased, and the efficiency of the energy collector is improved; the rectification-harmonic guide network is used for carrying out secondary recovery on harmonic energy in the circuit, the defect that the circuit is low in efficiency at high frequency is overcome, and the working bandwidth is widened. The invention is widely applied to the technical field of environmental energy recovery.
Description
Technical Field
The invention relates to the technical field of environment hybrid energy recovery, in particular to a broadband energy collector based on the cooperative recovery of electromagnetic energy and light energy hybrid environment energy.
Background
With the rapid development of wireless communication technologies in recent years, a large number of low-power wireless sensor components are widely deployed in various scenes. In order to reduce the dependence of the devices on batteries, the environmental energy recovery technology can effectively collect energy in the environment, and realize green, unmanned and intelligent direct-current energy supply. Meanwhile, with the rise of new generation communication technology, more and more wireless base stations are built, and the power density of electromagnetic signals in a free space environment will increase. Compared with other energy sources, the electromagnetic energy source is more stable and longer-term, is not influenced by seasons and time, and can meet the requirements in most scenes.
Because environment electromagnetic energy frequency distribution is unknown, consequently in environment electromagnetic energy recovery system, if the rectifier circuit as core device can keep the broadband characteristic when low power input, the performance of entire system will obtain very big promotion. However, the conventional broadband rectifier circuit has a problem of low efficiency at low power input, and cannot be adapted to different electromagnetic energy recovery scenarios.
Disclosure of Invention
The invention provides a broadband energy collector based on hybrid environment energy, aiming at solving the problems of low efficiency and narrow bandwidth of a rectifying circuit in the prior art.
The embodiment of the invention comprises a broadband energy collector based on mixed environment energy, which comprises:
a hybrid environmental energy input network; the hybrid environmental energy input network includes a first end for connection to a first energy source and a second end for connection to a second energy source;
a rectifying-harmonic steering network; the rectifying-harmonic guiding network comprises a third end, a fourth end and a fifth end, the rectifying-harmonic guiding network is in one-way conduction from the third end to the fourth end and in one-way conduction from the fifth end to the third end, and a harmonic guiding path is formed between the fourth end and the fifth end;
a harmonic suppression network; the harmonic suppression network comprises a first harmonic suppression unit, a second harmonic suppression unit, a sixth end, a seventh end, an eighth end and a ninth end, the first harmonic suppression unit is arranged between the sixth end and the seventh end, and the second harmonic suppression unit is arranged between the eighth end and the ninth end;
the second end is connected with the sixth end, the fifth end is connected with the seventh end, the fourth end is connected with the eighth end, and the fifth end is connected with the seventh end.
Further, the first energy source is a radio frequency source and the second energy source is a photovoltaic panel.
Furthermore, the fourth end and the fifth end are connected with each other through a transmission line, a first blocking capacitor and the transmission line in sequence.
Further, the ninth terminal is for connection to a load.
Furthermore, the broadband energy collector further comprises a matching network and a second blocking capacitor, an output end of the matching network is connected with the third end, an input end of the matching network is connected with one end of the second blocking capacitor, and the other end of the second blocking capacitor is used for being connected to a radio frequency source.
Furthermore, the matching network comprises a conducting wire, a fan-shaped branch knot, a first open line and a second open line, wherein the fan-shaped branch knot, the first open line and the second open line are respectively connected to the conducting wire, one end of the conducting wire is used as an input end of the matching network, and the other end of the conducting wire is used as an output end of the matching network.
Further, the rectifying-harmonic guiding network includes a first diode and a second diode, a cathode of the first diode is connected with an anode of the second diode through two transmission lines, a connection point of the two transmission lines is used as the third end, an anode of the first diode is used as the fifth end, and a cathode of the second diode is used as the fourth end.
Further, the broadband energy collector further comprises a dielectric substrate, and the hybrid environmental energy input network, the rectifying-harmonic guiding network and the harmonic suppression network are fixed on the dielectric substrate through a microstrip process.
Furthermore, the dielectric substrate is made of Rogers R4003C, the thickness of the dielectric substrate is 0.813mm, and the dielectric constant of the dielectric substrate is 3.38
The invention has the beneficial effects that: after receiving the mixed energy in the environment, the broadband energy collector in the embodiment can rectify the mixed energy through a rectification-harmonic wave guide network; the rectification-harmonic guiding network can obtain positive voltage bias from the second energy source, so that the rectification conduction angle during low-power electromagnetic energy input is increased, and the efficiency of the energy collector is improved; meanwhile, the rectification-harmonic guide network is utilized to carry out secondary recovery on harmonic energy in the circuit, so that the defect that the circuit is low in efficiency at high frequency is overcome, and the working bandwidth of the energy collector is widened; the broadband energy collector in the embodiment has higher efficiency at low power input and can adapt to different electromagnetic energy recovery scenes.
Drawings
FIG. 1 is a schematic topology of a broadband energy collector in an embodiment;
FIG. 2 is a schematic diagram of a rectification-harmonic guide network and a harmonic suppression network fabricated by a microstrip process in an embodiment;
FIG. 3 is a schematic topology diagram of a broadband energy collector provided with a matching network in an embodiment;
FIG. 4 is a schematic topology diagram of a broadband energy collector provided with a matching network and a second DC blocking capacitor in an embodiment;
FIG. 5 is a schematic diagram of a broadband energy collector fabricated by microstrip process in an embodiment;
FIG. 6 is a schematic diagram of the embodiment in which the component parts of FIG. 5 are marked;
FIG. 7 is a comparison of simulation efficiency of a broadband energy harvester and a conventional broadband rectification circuit in an embodiment;
fig. 8 and 9 are schematic diagrams illustrating data results obtained by simulation and test of the broadband energy collector in the embodiment, respectively.
Detailed Description
Example 1
In this embodiment, referring to fig. 1, a hybrid ambient energy based broadband energy harvester includes a hybrid ambient energy input network, a rectifying-harmonic steering network, and a harmonic suppression network. Wherein the hybrid environment energy input network comprises two ports, namely a first end 1 and a second end 2, the first end 1 is used for connecting to a first energy source, the second end 2 is used for connecting to a second energy source, wherein the first energy source can be a radio frequency source in a space environment, the second energy source can be a power source for converting light energy, namely the first end 1 is connected to the radio frequency source, and the second end 2 is connected to the photovoltaic panel. The first end 1 and the second end 2 are not affected with each other, the energy input by the first end 1 is from electromagnetic energy in the space, the energy input by the second end 2 is from optical energy in the space, and the two jointly form a hybrid environment energy input network of the broadband energy collector.
In this embodiment, the rectifying-harmonic guiding network may use the structure shown in fig. 2, which includes three ports, i.e., a third port 3, a fourth port 4, and a fifth port 5, and has the following properties: the unidirectional conduction is carried out from the third end 3 to the fourth end 4, and the unidirectional conduction is carried out from the fifth end 5 to the third end 3; that is, when the voltage is increased at the third terminal 3 and the voltage is decreased at the fourth terminal 4, the connection between the third terminal 3 and the fourth terminal 4 is conducted, and when the voltage is decreased at the third terminal 3 and the voltage is increased at the fourth terminal 4, the connection between the third terminal 3 and the fourth terminal 4 is not conducted; when a high voltage is applied to the fifth terminal 5 and a low voltage is applied to the third terminal 3, the fifth terminal 5 and the third terminal 3 are electrically connected to each other, and when a low voltage is applied to the fifth terminal 5 and a high voltage is applied to the third terminal 3, the fifth terminal 5 and the third terminal 3 are not electrically connected to each other. Meanwhile, a harmonic guide network is constructed between the fourth end 4 and the fifth end 5, a harmonic path and a direct current open circuit are formed between the fourth end 4 and the fifth end 5 by utilizing a transmission line-capacitor-transmission line structure, and harmonic can be guided to the fifth end 5 from the fourth end 4 and flows back to the diode for secondary rectification.
In this embodiment, the first diode D may be used as the rectifying-harmonic guiding network1And a second diode D2A building component with a structure as shown in figure 2, wherein the first diode D1Cathode of and a second diode D2The positive pole of the first and second transmission lines is connected through two transmission lines, the connection point of the two transmission lines is used as a third end 3Polar tube D1As a fifth terminal 5, a second diode D2As the fourth terminal 4. The rectifying-harmonic guiding network structure shown in fig. 2 has the above-mentioned properties of unidirectional conduction between the third terminal 3, the fourth terminal 4 and the fifth terminal 5, and harmonic guiding between the fourth terminal 4 and the fifth terminal 5.
In this embodiment, the first diode D1And a second diode D2Which may be a schottky diode and further may be a schottky diode of the type SMS7630, the capacitance between the fourth terminal 4 and the fifth terminal 5 may preferably be 2 pF.
In this embodiment, a harmonic suppression network may have a structure as shown in fig. 2, and the harmonic suppression network includes a first harmonic suppression unit, a second harmonic suppression unit, a sixth terminal 6, a seventh terminal 7, an eighth terminal 8, and a ninth terminal 9. The first harmonic suppression unit can be in a structure that a conductor is led out of a microstrip line and is grounded through a capacitor, and two ends of the conductor of the first harmonic suppression unit are respectively used as a sixth end 6 and a seventh end 7; the second harmonic suppression unit may have a structure that a lead-out microstrip line is grounded through a capacitor, and two ends of the lead of the second harmonic suppression unit are respectively used as an eighth end 8 and a ninth end 9.
Referring to fig. 1, the fourth terminal 4 of the rectifying-harmonic guiding network is connected to the eighth terminal 8 of the harmonic suppression network, and the fifth terminal 5 of the rectifying-harmonic guiding network is connected to the seventh terminal 7 of the harmonic suppression network.
Referring to fig. 1, the third end 3 of the rectification-harmonic guide network is connected with the output end of the radio frequency source to receive electromagnetic energy output by the radio frequency source, and the sixth end 6 of the harmonic suppression network is connected with the output end of the photovoltaic panel to receive light energy converted into direct current. The ninth end 9 of the harmonic rejection network is connected to a load, which in this embodiment may be a pure resistor.
The working principle of the broadband energy collector in this embodiment can be understood by combining fig. 1 and fig. 2:
after the mixed environment energy input network is introduced, the converted light energy can provide positive voltage bias for the diode, the rectification conduction angle when low-power electromagnetic energy is input is increased, and the rectification efficiency of the circuit is greatly improved; at the same time, inThe electromagnetic energy output by the radio frequency source is received by the rectifying-harmonic guiding network and then is transmitted to the second diode D2Is reflected by the second harmonic suppression unit, the reflected harmonic energy can flow into the harmonic path between the fourth terminal 4 and the fifth terminal 5, and flows back to the first diode D after being reflected by the first harmonic suppression unit1Is again passed through the first diode D1And a second diode D2The secondary rectification is realized, the efficiency of the circuit at higher frequency is improved, and the bandwidth of the energy collector is expanded under the same efficiency requirement.
In this embodiment, a further improvement can be made on the basis of the broadband energy collector shown in fig. 1, and as shown in fig. 3, a matching network is additionally arranged between the rectifying-harmonic guiding network and the radio frequency source.
In this embodiment, a further improvement may be made on the basis of the broadband energy collector shown in fig. 3, and as shown in fig. 4, a second dc blocking capacitor is additionally disposed between the matching network and the rf source.
In this embodiment, the hybrid environment energy input network, the rectification-harmonic guiding network, the harmonic suppression network, the matching network, and the second dc blocking capacitor may be fixed on the same surface of the dielectric substrate by a microstrip process. On the other hand, the ground wire is manufactured through copper cladding and the like, and a grounding through hole penetrating through the dielectric substrate is manufactured at the position of the harmonic suppression network, for example, at the part of the first harmonic suppression unit and the second harmonic suppression unit which needs to be grounded, so that the broadband energy collector and the load on one surface of the dielectric substrate can be grounded.
In this example, the dielectric substrate used was Rogers R4003C, which had a thickness of 0.813mm and a dielectric constant of 3.38.
In this embodiment, the effect of the broadband energy collector obtained by manufacturing the hybrid environment energy input network, the rectification-harmonic guiding network, the harmonic suppression network, the matching network, the second dc blocking capacitor, and the like on the dielectric substrate through the microstrip process is shown in fig. 5, and the components are labeled on the basis of fig. 5, so as to obtain fig. 6. Referring to fig. 6, the matching network corresponds to the composition of the devices within the dashed box. Referring to fig. 5 or 6, the matching network in this embodiment includes a 4.7mm radius fan-shaped branch, two 2.4mm long and 1mm wide first stubs, and two 2.8mm long and 0.2mm wide second stubs, and the fan-shaped branch, the first stub, and the second stub are connected by a wire. The matching network of fig. 5 or fig. 6 can function as an impedance match, so that the broadband energy collector has stable efficiency in the whole working frequency band. The second blocking capacitor can play a role in blocking direct current and alternating current, and the rectification efficiency can be further improved. For best performance, the resistance of the load in fig. 5 or 6 is preferably 1470 Ω.
Example 2
In this embodiment, a design method of the broadband energy collector based on the hybrid environmental energy source, or a manufacturing method of the broadband energy collector based on the hybrid environmental energy source according to embodiment 1 is provided, which includes the following steps:
s1, obtaining a medium substrate;
s2, manufacturing a mixed environment energy input network, a rectification-harmonic wave guide network and a harmonic wave suppression network on one surface of the medium substrate; the hybrid environment energy input network comprises a first end and a second end, wherein the first end is a radio frequency source output port, and the second end is a direct current source output port converted by optical energy; the rectification-harmonic guiding network comprises a third end, a fourth end and a fifth end, unidirectional conduction is realized from the third end to the fourth end, unidirectional conduction is realized from the fifth end to the third end, and a harmonic guiding passage is formed by first blocking capacitors which are respectively connected with a section of transmission line from the left end to the right end; the harmonic suppression network comprises a first harmonic suppression unit, a second harmonic suppression unit, a sixth end, a seventh end, an eighth end and a ninth end, the first harmonic suppression unit is arranged between the sixth end and the seventh end, and the second harmonic suppression unit is arranged between the eighth end and the ninth end; the second end is connected with the sixth end, the fifth end is connected with the seventh end, the fourth end is connected with the eighth end, and the fifth end is connected with the seventh end.
The steps S1 and S2 may be executed by microwave circuit simulation software, microwave circuit test software, microwave circuit design software, or the like, or may be executed by a production machine in a production shop, that is, the steps S1 and S2 may be operations of laboratory simulation or actual production process flow.
By performing steps S1 and S2, the broadband energy collector shown in fig. 1-5 is obtained. The physical dimensions of some of the components in the optimized broadband energy collector are also marked in fig. 5 for optimal performance.
By performing steps S1 and S2, the broadband energy collector in embodiment 1 can be obtained, thereby achieving the same technical effects as embodiment 1, including: after the mixed environment energy input network is introduced into the obtained broadband energy collector, the converted light energy can provide positive voltage bias for the diode, the rectification conduction angle when low-power electromagnetic energy is input is increased, and the rectification efficiency of the circuit is greatly improved; meanwhile, after receiving the electromagnetic energy output by the radio frequency source through the rectification-harmonic guiding network, the electromagnetic energy is output from the second diode D2Is reflected by the second harmonic suppression unit, the reflected harmonic energy can flow into the harmonic path between the fourth terminal 4 and the fifth terminal 5, and flows back to the first diode D after being reflected by the first harmonic suppression unit1Is again passed through the first diode D1And a second diode D2The secondary rectification is realized, the efficiency of the circuit at higher frequency is improved, and the bandwidth of the energy collector is expanded under the same efficiency requirement.
Example 3
In this example, the results of comparing the simulation efficiencies are shown in fig. 7, and the simulation and actual measurement results are shown in fig. 8 and 9, when the broadband energy collector designed or manufactured in example 2 is used for simulation.
As shown in fig. 7, it can be seen from the comparison graph of the efficiency simulation of the conventional energy collector adopting the broadband matching network and the energy collector adopting the rectifying-harmonic guiding network in the embodiments 1 and 2, that when the photovoltaic panel does not provide a positive voltage bias, the rectifying efficiency of the circuit adopting the rectifying-harmonic guiding network in the embodiments 1 and 2 is improved at a higher frequency, and the corresponding operating bandwidth is greatly improved.
Fig. 8 is a response graph of efficiency of the broadband energy collector in example 1 and example 2 with respect to frequency variation at mixed energy inputs of different powers, and the broadband energy collector in example 1 and example 2 achieves high efficiency rectification in broadband. In the actual measurement result, when the input radio frequency power is lower, the positive voltage bias provided by the photovoltaic panel is larger, and the performance of the circuit is improved more obviously. For example, when the input radio frequency power is-20 dBm, the efficiency of the circuit can be improved by 30% by 0.3V; when the input radio frequency power is 0dBm and the bias of the photovoltaic panel is 0.3V, the circuit has the highest rectification efficiency of 72.5 percent at 1.4 GHz. Meanwhile, the circuit always keeps broadband characteristics under different power levels, for example, when the input radio frequency power is 0dBm and the bias of the photovoltaic panel is 0.1V, the working bandwidth of the circuit efficiency which is more than 40% is 0.8 GHz-2.5 GHz, and the relative bandwidth is 103.03%; when the input radio frequency power is-10 dBm and the bias of the photovoltaic panel is 0.2V, the working bandwidth with the circuit efficiency of more than 40 percent is 0.9 GHz-2.4 GHz, and the relative bandwidth is 90.91 percent; when the input radio frequency power is-20 dBm and the bias of the photovoltaic panel is 0.3V, the working bandwidth with the circuit efficiency of more than 40 percent is 0.4 GHz-2.8 GHz, and the relative bandwidth is 150 percent. Therefore, the broadband energy collectors in the embodiments 1 and 2 have the advantages of high efficiency, broadband and the like.
As shown in fig. 9, the broadband energy collectors in embodiments 1 and 2 still have better frequency response when mixed energy with different powers is input, and achieve better impedance matching.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this embodiment, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language ("e.g.," such as "or the like") provided with this embodiment is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object terminal oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, operations of processes described in this embodiment can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described in this embodiment (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described in the present embodiment to convert the input data to generate output data that is stored to a non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the present invention, the transformed data represents a physical and tangible target terminal, including a particular visual depiction of the physical and tangible target terminal produced on a display.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (9)
1. A hybrid ambient energy source-based broadband energy harvester, comprising:
a hybrid environmental energy input network; the hybrid environmental energy input network includes a first end for connection to a first energy source and a second end for connection to a second energy source;
a rectifying-harmonic steering network; the rectifying-harmonic guiding network comprises a third end, a fourth end and a fifth end, the rectifying-harmonic guiding network is in one-way conduction from the third end to the fourth end and in one-way conduction from the fifth end to the third end, and a harmonic guiding path is formed between the fourth end and the fifth end;
a harmonic suppression network; the harmonic suppression network comprises a first harmonic suppression unit, a second harmonic suppression unit, a sixth end, a seventh end, an eighth end and a ninth end, the first harmonic suppression unit is arranged between the sixth end and the seventh end, and the second harmonic suppression unit is arranged between the eighth end and the ninth end;
the second end is connected with the sixth end, the fifth end is connected with the seventh end, the fourth end is connected with the eighth end, and the fifth end is connected with the seventh end.
2. The broadband energy harvester of claim 1, wherein the first energy source is a radio frequency source and the second energy source is a photovoltaic panel.
3. The broadband energy collector of claim 1, wherein the fourth terminal and the fifth terminal are connected in sequence via a transmission line, a first blocking capacitor and a transmission line.
4. The broadband energy collector of claim 1 wherein the ninth end is for connection to a load.
5. The broadband energy harvester of claim 1, further comprising a matching network and a second dc blocking capacitor, wherein an output of the matching network is connected to the third terminal, an input of the matching network is connected to one terminal of the second dc blocking capacitor, and another terminal of the second dc blocking capacitor is configured to be connected to a radio frequency source.
6. The broadband energy harvester of claim 5, wherein the matching network comprises a wire, a segment, a first open wire, and a second open wire, the segment, the first open wire, and the second open wire being connected to the wire, respectively, one end of the wire being an input of the matching network and the other end of the wire being an output of the matching network.
7. The broadband energy harvester of claim 1, wherein the rectifying-harmonic steering network comprises a first diode and a second diode, wherein a cathode of the first diode is connected to an anode of the second diode via two transmission lines, a connection point of the two transmission lines is the third terminal, an anode of the first diode is the fifth terminal, and a cathode of the second diode is the fourth terminal.
8. The broadband energy collector of any one of claims 1 to 7, further comprising a dielectric substrate, wherein the hybrid ambient energy source input network, the rectifying-harmonic guiding network and the harmonic rejection network are affixed to the dielectric substrate by a microstrip process.
9. The broadband energy collector of claim 8, wherein the dielectric substrate is Rogers R4003C, the dielectric substrate has a thickness of 0.813mm, and the dielectric substrate has a dielectric constant of 3.38.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072345.4A CN113852212B (en) | 2021-09-14 | 2021-09-14 | Broadband energy collector based on mixed environment energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072345.4A CN113852212B (en) | 2021-09-14 | 2021-09-14 | Broadband energy collector based on mixed environment energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113852212A true CN113852212A (en) | 2021-12-28 |
| CN113852212B CN113852212B (en) | 2024-06-11 |
Family
ID=78974083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111072345.4A Active CN113852212B (en) | 2021-09-14 | 2021-09-14 | Broadband energy collector based on mixed environment energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113852212B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856149A (en) * | 2014-03-18 | 2014-06-11 | 江苏大学 | Integrated mixed-environment energy collecting device |
| US20160181873A1 (en) * | 2013-08-09 | 2016-06-23 | Drayson Wireless Limited | RF Energy Harvester |
| CN107171453A (en) * | 2017-05-18 | 2017-09-15 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of radio frequency rectification circuit of the double branch structures of wideband |
| US20180254715A1 (en) * | 2015-09-14 | 2018-09-06 | Drayson Technologies (Europe) Limited | Rf-to-dc converter |
| US20190067802A1 (en) * | 2017-08-28 | 2019-02-28 | Aeternum, LLC | Rectenna |
| US20190252924A1 (en) * | 2018-02-15 | 2019-08-15 | Georgia Tech Research Corporation | Hybrid Energy Harvesting Systems and Devices Incorporating the Same |
| US20200336006A1 (en) * | 2019-04-18 | 2020-10-22 | Stmicroelectronics S.R.L. | Energy harvesting circuit, corresponding system and method |
| CN112018770A (en) * | 2020-07-30 | 2020-12-01 | 中山大学 | Ultra-wideband rectification circuit based on harmonic feedback and design method |
-
2021
- 2021-09-14 CN CN202111072345.4A patent/CN113852212B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160181873A1 (en) * | 2013-08-09 | 2016-06-23 | Drayson Wireless Limited | RF Energy Harvester |
| CN103856149A (en) * | 2014-03-18 | 2014-06-11 | 江苏大学 | Integrated mixed-environment energy collecting device |
| US20180254715A1 (en) * | 2015-09-14 | 2018-09-06 | Drayson Technologies (Europe) Limited | Rf-to-dc converter |
| CN107171453A (en) * | 2017-05-18 | 2017-09-15 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of radio frequency rectification circuit of the double branch structures of wideband |
| US20190067802A1 (en) * | 2017-08-28 | 2019-02-28 | Aeternum, LLC | Rectenna |
| US20190252924A1 (en) * | 2018-02-15 | 2019-08-15 | Georgia Tech Research Corporation | Hybrid Energy Harvesting Systems and Devices Incorporating the Same |
| US20200336006A1 (en) * | 2019-04-18 | 2020-10-22 | Stmicroelectronics S.R.L. | Energy harvesting circuit, corresponding system and method |
| CN112018770A (en) * | 2020-07-30 | 2020-12-01 | 中山大学 | Ultra-wideband rectification circuit based on harmonic feedback and design method |
Non-Patent Citations (2)
| Title |
|---|
| SHAOYONG ZHENG ET AL: "A Compact and Broadband Rectifier for Ambient Electromagnetic Energy Harvesting Application", 《2020 INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION (IWEM)》, pages 1 - 2 * |
| 柳百毅等: "基于感应取能的微功率能量收集器", 《中国电机工程学报》, vol. 40, no. 5, pages 1474 - 1484 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113852212B (en) | 2024-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ur Rehman et al. | Highly efficient dual band 2.45/5.85 GHz rectifier for RF energy harvesting applications in ISM band | |
| CN112018770B (en) | Ultra-wideband rectification circuit based on harmonic feedback and design method | |
| Chang et al. | Highly efficient differential rectenna for RF energy harvesting | |
| CN106464149A (en) | Harmonic harvester for improved RF-to-DC rectifying efficiency | |
| Bergès et al. | A dual band 915MHz/2.44 GHz RF energy harvester | |
| CN104767028A (en) | Rectification antenna | |
| Riaz et al. | A single cell dual band rectifier at millimeter-wave frequencies for future 5G communications | |
| Pinto et al. | Design and performance evaluation of a wi-fi energy harvester for energizing low power devices | |
| Lopez-Yela et al. | A triple-band bow-tie rectenna for RF energy harvesting without matching network | |
| CN108232410B (en) | Antenna radiation direction regulator of unmanned aerial vehicle | |
| CN113852212B (en) | Broadband energy collector based on mixed environment energy | |
| Adam et al. | Rectifier for RF energy harvesting using stub matching | |
| CN116247950A (en) | Dual-bandwidth load rectifying circuit based on self-adaptive signal diversion | |
| Quddious et al. | Voltage-doubler RF-to-DC rectifiers for ambient RF energy harvesting and wireless power transfer systems | |
| Chaari et al. | Energized IoT devices through RF wireless power transfer | |
| Meneses Ghiglino | Ultra-wideband (UWB) rectenna design for electromagnetic energy harvesting | |
| CN113938032B (en) | Wide-bandwidth power range rectifying circuit for electromagnetic energy recovery and transmission | |
| CN105450046A (en) | High-efficiency differential rectification circuit applying impedance compressed network | |
| Wu et al. | A high efficiency rectifier for ambient RF energy harvesting at 940 MHz | |
| Zhao et al. | Dual-band RF energy harvesting for low-power IoT devices | |
| Gao et al. | Analysis of mmwave rectifiers with an accurate rectification model | |
| Diagarajan et al. | Advanced Radio Frequency Energy Harvesting with Power Management from Multiple Sources for Low Power Sensors and Mobile Charging Applications | |
| Takagaki et al. | Efficient design approach of mW-class RF-DC conversion rectenna circuits by FDTD analysis | |
| Singh et al. | Review of Multiband RF Energy Harvesters | |
| Sharma et al. | Dual-Band Rectenna for Optimal RF Energy Harvesting in Wireless Applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |