CN106981717A - A kind of dual polarization RECTIFYING ANTENNA of compact wide power input - Google Patents
A kind of dual polarization RECTIFYING ANTENNA of compact wide power input Download PDFInfo
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- CN106981717A CN106981717A CN201710084198.XA CN201710084198A CN106981717A CN 106981717 A CN106981717 A CN 106981717A CN 201710084198 A CN201710084198 A CN 201710084198A CN 106981717 A CN106981717 A CN 106981717A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The present invention relates to a kind of dual polarization RECTIFYING ANTENNA of compact wide power input, including reception antenna and rectification circuit, the output end of reception antenna is electrically connected with the input of rectification circuit, and the reception antenna includes aerial radiation piece, public ground level, the first feed probes and the second feed probes；Wherein aerial radiation piece is arranged at the top of public ground level, and the medium spacing existed as air-gap is left between aerial radiation piece, public ground level；First feed probes, one end of the second feed probes are passed after public ground level and electrically connected with aerial radiation piece, without electrically connecting between the first feed probes, the second feed probes and public ground level；The rectification circuit includes the first rectification branch road, the second rectification branch road and load, wherein the other end of the first rectification branch road, the input of the second rectification branch road respectively with the first feed probes, the second feed probes is electrically connected；First rectification branch road, the output end of the second rectification branch road are electrically connected with the two ends of load respectively；First rectification branch road, the second rectification branch structure are symmetrical, using difference output.
Description
Technical field
The present invention relates to microwave wireless field of energy transfer, more particularly, to a kind of the double of compact wide power input
Polarize RECTIFYING ANTENNA.
Background technology
Microwave wireless energy transmits (MPT：Microwave Power Transmission) technology is by direct current energy
Amount is converted into RF energy, and is launched by way of electromagnetic radiation, departs from physical wire line and propagate in free space and by energy
Amount reception system is again converted to the technology that DC energy supply rear class is used after receiving.Compared with having heat input transmission, wireless energy
Amount transmission in space flexibility, set up physics cost, have obvious advantage in terms of the free degree, especially medical treatment transducer in vivo
Power supply, the internet of things sensors network node application scenarios such as power more have irreplaceable advantage.In the fifties in 19th century, MPT
Technology is used for the application studies such as high-power, space transmission of electricity, remote boot server unmanned plane at first, and power scale is big.With semiconductor
The development of integrated circuit technique and modern communication technology, radio frequency diminishes with electronic circuit size and the continuous of power, MPT technology quilts
The occasions such as consumer electronics are charged, Internet of things node is powered, environmental energy is collected more are applied to, to meet the small-sized of equipment
Change, high integration, the demand of low cost.
The key component of MPT systems is energy acceptance system, and it comprises radio frequency reception antenna (Receiving
Antenna) with two parts of radio frequency rectification circuit (Rectifying Circuit), therefore also known as RECTIFYING ANTENNA (Rectenna).
The energy acceptance conversion efficiency (Power Conversion Efficiency, PCE) of RECTIFYING ANTENNA directly affects whole energy
The service behaviour of Transmission system is measured, is the key index of RECTIFYING ANTENNA.In addition, size, cost, stability, robustness etc.
It is also the important indicator for weighing systematic function.
In traditional energy transmission system, conventional receiver system is more sensitive to input power density, causes input work
Rate excursion is unable to maintain that preferably conversion efficiency when wider.In addition, traditional single line poliarizing antenna can only be received in the environment
The line polarization wave in one direction, causes the power received to have larger directionality limitation.These problems limit conventional rectifier
Antenna is in small-power, the use of high integration application scenarios.
The content of the invention
The present invention can not keep more excellent to solve the RECTIFYING ANTENNA that above prior art is provided when in face of wide power input
There is provided a kind of dual polarization of compact wide power input for the defect of the directionality limitation of conversion efficiency and reception RF energy
RECTIFYING ANTENNA
To realize above goal of the invention, the technical scheme of use is：
A kind of dual polarization RECTIFYING ANTENNA of compact wide power input, including reception antenna and rectification circuit, reception antenna it is defeated
Go out end to electrically connect with the input of rectification circuit, the reception antenna includes aerial radiation piece, public ground level, the first feed and visited
Pin and the second feed probes；Wherein aerial radiation piece is arranged at the top of public ground level, aerial radiation piece, public ground level it
Between leave the medium spacing existed as air-gap；First feed probes, one end of the second feed probes pass public ground level
Electrically connected afterwards with aerial radiation piece, without electrically connecting between the first feed probes, the second feed probes and public ground level；Institute
Stating rectification circuit includes the first rectification branch road, the second rectification branch road and load, wherein the first rectification branch road, the second rectification branch road
The other end of the input respectively with the first feed probes, the second feed probes is electrically connected；First rectification branch road, the second rectification branch road
Output end electrically connected respectively with the two ends of load；First rectification branch road, the second rectification branch structure are symmetrical, defeated using difference
Go out.
In such scheme, reception antenna receive from emission system, other communication systems free space radiate
RF energy, and the first rectification branch road, the second rectification branch road these energy conductions to difference, the first rectification branch road, second
Rectification branch road carries out energy conversion and rectification again, then exports DC energy supply load and uses.
In such scheme, reception antenna is designed as dual-linear polarization antenna, with two energy acceptance points, can receive from two
The RF energy of individual orthogonal direction, greatly enhances the robustness to radiating line polarization wave direction change；Furthermore, the first rectification branch
Differential output mode is realized using symmetrical structure between road, the second rectification branch road, in such a mode, the first rectification branch road,
The opposite DC energy of polarization is respectively outputted to the positive pole and negative pole of load by two rectification branch roads, and load obtains two energy
The summation of amount.So as to improve output voltage and energy conversion efficiency, and improve the robustness changed to input power.Simultaneously when it
In branch road when maintaining greater efficiency, its efficiency plays support function, even if another branch road is under lower-wattage input, circuit
Whole efficiency is also maintained at higher level.Thus, rectification circuit can remain higher and turn under the power input of relative broad range
Change efficiency.
Preferably, the public ground level is arranged on medium substrate A top surface, and the rectification circuit is arranged on medium base
On plate A bottom surface, the first feed probes, the other end of the second feed probes pass after public ground level, medium substrate A respectively with
The input electrical connection of first rectification branch road, the second rectification branch road, first feed probes, the second feed probes and medium base
Plate A connections, without electrical connection between the first feed probes, the second feed probes and public ground level.
Preferably, the aerial radiation piece is arranged on medium substrate B top surface, and the first feed probes, the second feed are visited
One end of pin is electrically connected after passing public ground level, air dielectric, medium substrate B with aerial radiation piece.
Preferably, the medium substrate A or medium substrate B are made of polytetrafluoroethylmaterial material.
Preferably, the horizontal section of the aerial radiation piece is rounded；The horizontal section of the public ground level is in
Square.
Preferably, the public ground level is mechanically connected by substrate media pillar and aerial radiation piece.
Preferably, the public ground level is connected by least two pillar with aerial radiation piece, and at least two pillar is with day
The center of beta radiation piece is that the center of circle is uniformly distributed in a circumferential direction.
Preferably, the first rectification branch road is whole including the first impedance matching circuit, first harmonic suppressor, the first radio frequency
Flow diode and the first straight-through wave filter；Wherein the input of the first impedance matching circuit and the other end of the first feed probes are electric
Connection, the output end of the first impedance matching circuit and the input of first harmonic suppressor, the input of the first straight-through wave filter
Electrical connection, the output end of first harmonic suppressor is electrically connected with the anode of the first radio frequency commutation diode, the first radio frequency rectification two
The negative electrode of pole pipe is electrically connected with public ground level；The output end of first straight-through wave filter is electrically connected with the one end loaded；
The second rectification branch road include the second impedance matching circuit, second harmonic suppressor, the second radio frequency commutation diode and
Second straight-through wave filter；Wherein the input of the second impedance matching circuit is electrically connected with the other end of the second feed probes, and second
The output end of impedance matching circuit is electrically connected with the input of second harmonic suppressor, the input of the second straight-through wave filter, the
The output end of two harmonic shutters is electrically connected with the negative electrode of the second radio frequency commutation diode, the anode of the second radio frequency commutation diode
Electrically connected with public ground level；The output end of second straight-through wave filter is electrically connected with the other end loaded.
Preferably, the first harmonic suppressor, second harmonic suppressor include the fan-shaped suppressor and three of second harmonic
Subharmonic sector suppressor；The fan-shaped suppressor of the second harmonic of first harmonic suppressor, the fan-shaped suppressor and first of triple-frequency harmonics
Impedance matching circuit, the electrical connection of first harmonic suppressor；The fan-shaped suppressor of the second harmonic of second harmonic suppressor, triple-frequency harmonics
Fan-shaped suppressor is connected with the second impedance matching circuit, the second radio frequency commutation diode.
Preferably, the first radio frequency commutation diode, the second radio frequency commutation diode are Schottky diode.
Compared with prior art, the beneficial effects of the invention are as follows：
1. reception antenna is designed using dual-linear polarization, the robustness to radiating line polarization wave direction change is greatly enhanced；
2. rectification circuit uses differential input structure, higher efficiency and VD can be maintained under wider power input；
3. the reception antenna of the present invention, rectification circuit form sandwich construction in spatial distribution, the area of section, structure are effectively reduced
Compact, size is small；
4. the reception antenna of the present invention uses air-gap structure, be conducive to the crosstalk of stray wave between elimination each element, it is easy to organize battle array.
Brief description of the drawings
Fig. 1 is the stereogram of RECTIFYING ANTENNA.
Fig. 2 is the top view of RECTIFYING ANTENNA.
Fig. 3 is the lateral plan of RECTIFYING ANTENNA.
Fig. 4 is the structural representation of 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
As shown in figure 1, the RECTIFYING ANTENNA that the present invention is provided includes reception antenna 1 and the two parts of rectification circuit 2, wherein reception antenna
1 includes aerial radiation piece 11, public ground level 12, the first feed probes 13 and the second feed probes 14；Wherein aerial radiation piece
11 are arranged at the top of public ground level 12, leave and exist as air dielectric between aerial radiation piece 11, public ground level 12
Spacing；First feed probes 13, one end of the second feed probes 14 pass electric with aerial radiation piece 11 after public ground level 12
Connection.
In specific implementation process, public ground level 12 is arranged on medium substrate A top surface, the rectification circuit 2
On the bottom surface for being arranged on medium substrate A, the first feed probes 13, the other end of the second feed probes 14 pass public ground level
12nd, the input after medium substrate A respectively with the first rectification branch road 21, the second rectification branch road 22 is connected, and first feed is visited
Pin 13, the second feed probes 14 are connected with medium substrate A, the first feed probes 13, the second feed probes 14 and public ground level
Without electrical connection between 12；The aerial radiation piece 11 is arranged on medium substrate B top surface, the first feed probes 13,
One end of second feed probes 14 is electrically connected after passing public ground level 12, medium substrate B with aerial radiation piece 11.
Wherein, medium substrate A serves as three effects：1. magnetic field line is referring back to face；2. the plane of reflection；3. support antenna
The support of radiation fin 11.Public ground level 12 is designed as square, and size is in 4mm*5mm*0.5mm to 7mm*8mm*3.3mm models
Enclose interior adjustable, and its area is bigger than the area of aerial radiation piece 11.Medium substrate A size can be more than or equal to public ground level
12 size, it is preferable that medium substrate A is made using polytetrafluoroethylmaterial material.
In specific implementation process, the horizontal section of aerial radiation piece 11 is rounded, and aerial radiation piece 11 is produced on one
Block one side is covered on the medium substrate B of copper, and home position is located at the field side axis of public ground level 12, distance center 1-5cm
It is adjustable, while the diameter of aerial radiation piece 11 is adjustable in 4cm-8cm, the sized resonance frequency for changing aerial radiation piece 11
Rate, so as to adjust the frequency of rectenna receiver energy.In the present embodiment, medium substrate B thickness is 0.25mm, dielectric constant
For 2.55, loss tangent angle is 0.001.Medium substrate B thickness is adjustable between 0.1mm-0.45mm in actual design, but is
Reduce the loss of substrate, the thickness of the medium substrate should be as thin as possible.And relatively thin medium substrate B hardness is relatively low, easily
Pillar 15 is introduced because gravity is deformed upon, therefore at the edge close to aerial radiation piece 11.Not influence radiance, pillar 15
Must possess two characteristics：1. non-conductor medium, can be selected in multiple material, but be considered as introducing pillar 15 in the design
The influence brought afterwards, in this example, pillar 15 are made of polytetrafluoroethylmaterial material；2. it is small-sized, can be in 0.5mm*
Selected in 0.5mm*0.5mm to 2mm*2mm*3mm, in this example, the size of pillar 15 is 1mm*1mm*1.5mm.Pillar 15
Height be aerial radiation piece 11 and public ground level 12 gap width, this gap is filled by air dielectric.Introduce empty
Gas medium can bring the characteristics such as high-gain, high front and rear ratio.
In reception antenna 1, the first feed probes 13, the second feed probes 14 are whole for the RF energy of reception to be transferred to
Current circuit 2.First feed probes 13, the second feed probes 14 are generally cylinder conductor probe, and diameter can in 0.5-1.5mm
Choosing, in this example from the cylinder conductor probe of 1.0mm diameters.In structure as shown in Figure 3, the first feed probes
13rd, the second feed probes 14 do not produce electrical contact between public ground level 12, and directly with the first rectification branch road 21, second
The input of rectification branch road 22 is electrically connected, so as to transfer energy to the first rectification branch road 21, the second rectification branch road 22.
In specific implementation process, as shown in figure 4, the first rectification branch road 21 includes the first impedance matching circuit 211, the
One harmonic shutter 212, the first radio frequency commutation diode 213 and the first straight-through wave filter 214；Wherein the first impedance matching circuit
211 input is electrically connected with the other end of the first feed probes 13, the output end of the first impedance matching circuit 211 and first humorous
The input electrical connection of the input of ripple suppressor 212, the first straight-through wave filter 214, the output end of first harmonic suppressor 212
Electrically connected with the anode of the first radio frequency commutation diode 213, the negative electrode of the first radio frequency commutation diode 213 and public ground level 12
Electrical connection；The output end of first straight-through wave filter 214 is electrically connected with one end of load 3；The second rectification branch road 22 includes the
Two impedance matching circuits 221, second harmonic suppressor 222, the second radio frequency commutation diode 223 and the second straight-through wave filter 224；
Wherein the input of the second impedance matching circuit 221 is electrically connected with the other end of the second feed probes 14, the second impedance matching electricity
The output end on road 221 is electrically connected with the input of second harmonic suppressor 222, the input of the second straight-through wave filter 224, and second
The output end of harmonic shutter 222 is electrically connected with the negative electrode of the second radio frequency commutation diode 223, the second radio frequency commutation diode
223 anode is electrically connected with public ground level 12；The output end of second straight-through wave filter 224 is electrically connected with the other end of load 3.
In such scheme, the first rectification branch road 21 is identical with the operation principle of the second rectification branch road 22, as follows：Receive day
Line 1 receive RF energy by feed probes transmit to rectification branch road impedance matching circuit be used for matched receiving antenna 1 with
The impedance of rectification circuit 2, so that energy reflection is smaller, system capacity receiving efficiency is higher.Then RF energy passes through impedance
Match circuit is transmitted to the input end of harmonic shutter, straight-through wave filter, because straight-through wave filter can obstruct radio frequency fundamental frequency energy
Amount, prevents it from directly reaching the influence of load 33 performances of load and being merely able to system conversion efficiency, therefore RF energy by harmonic wave
Suppressor, which is transmitted to radio frequency commutation diode, carries out rectification processing, when harmonic shutter barrier is worked by radio frequency commutation diode
The harmonic component of generation, and make its bounce-back and then flow through commutation diode progress two times transfer again, so as to further improve system
The energy conversion efficiency of system.The DC energy that radio frequency rectifies are produced after harmonic shutter, straight-through wave filter,
More pure DC energy is exported, is used for load 3.Wherein, what the first rectification branch road 21, the second rectification branch road 22 were produced is straight
Stream energy opposite polarity, the two ends of load 3 load opposite polarity DC energy, and obtained energy summation is opposite polarity energy
Amount is added, so as to lift whole efficiency.In the present embodiment, radio frequency commutation diode uses Schottky diode, with quickly opening
Close, the characteristics of energy consumption is small, it is adaptable to wireless energy transfer application.
In specific implementation process, the first harmonic suppressor 212, second harmonic suppressor 222 include secondary
Harmonic wave sector suppressor and the fan-shaped suppressor of triple-frequency harmonics；The fan-shaped suppressor of the second harmonic of first harmonic suppressor 212, three times
Harmonic wave sector suppressor is electrically connected with the first impedance matching circuit 211, first harmonic suppressor 212；Second harmonic suppressor 222
The fan-shaped suppressor of second harmonic, the fan-shaped suppressor of triple-frequency harmonics and the second impedance matching circuit 221, the pole of the second radio frequency rectification two
Pipe 223 is connected.Because the harmonic component in harmonic component higher than three times is very small, if introducing filtering, the insertion loss brought will
Performance boost than suppressing harmonic band is big, therefore does not consider.Meanwhile, harmonic shutter carries impedance matching function, harmonic wave
The direct input impedance of suppressor is adjusted to 50 Ohm, makes input energy is smaller to be transferred to commutation diode reflectingly, so that
Improve energy conversion efficiency.
In specific implementation process, the first impedance matching circuit 211, the second impedance matching circuit 221 are using single detail
Open circuit matching.
Using the micro-strip RECTIFYING ANTENNA of this embodiment, compact conformation, the area of section is small, 360 degree in acceptable profile
The line polarization wave in direction, and 60% rectification efficiency is maintained under -7 to 16dBm inputs, 75% rectification is reached at up to 9dBm
Efficiency.
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 (10)
1. a kind of dual polarization RECTIFYING ANTENNA of compact wide power input, including reception antenna and rectification circuit, reception antenna
Output end is electrically connected with the input of rectification circuit, it is characterised in that：The reception antenna includes aerial radiation piece, public Horizon
Face, the first feed probes and the second feed probes；Wherein aerial radiation piece is arranged at the top of public ground level, aerial radiation
The medium spacing existed as air-gap is left between piece, public ground level；One end of first feed probes, the second feed probes
Pass after public ground level and to be electrically connected with aerial radiation piece, between the first feed probes, the second feed probes and public ground level
Without electrical connection；The rectification circuit includes the first rectification branch road, the second rectification branch road and load, wherein the first rectification branch
The other end of road, the input of the second rectification branch road respectively with the first feed probes, the second feed probes is electrically connected；First rectification
Branch road, the output end of the second rectification branch road are electrically connected with the two ends of load respectively；First rectification branch road, the second rectification branch structure
Symmetrically, using difference output.
2. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 1, it is characterised in that：The public affairs
Ground level is arranged on medium substrate A top surface altogether, and the rectification circuit is arranged on medium substrate A bottom surface, the first feed
Probe, the other end of the second feed probes pass after public ground level, medium substrate A respectively with the first rectification branch road, second whole
The input electrical connection of branch road is flowed, first feed probes, the second feed probes are connected with medium substrate A, and the first feed is visited
Without electrical connection between pin, the second feed probes and public ground level.
3. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 1, it is characterised in that：The antenna
Radiation fin is arranged on medium substrate B top surface, the first feed probes, one end of the second feed probes pass public ground level,
Electrically connected after air dielectric, medium substrate B with aerial radiation piece.
4. the dual polarization RECTIFYING ANTENNA of the compact wide power input according to Claims 2 or 3, it is characterised in that：It is described
Medium substrate A or medium substrate B are made of polytetrafluoroethylmaterial material.
5. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 1, it is characterised in that：The antenna
The horizontal section of radiation fin is rounded；The horizontal section of the public ground level is square.
6. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 5, it is characterised in that：It is described public
Ground level is mechanically connected by pillar with aerial radiation piece.
7. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 6, it is characterised in that：It is described public
Ground level is connected by least two pillar with aerial radiation piece, and the center of at least two pillar using aerial radiation piece exists as the center of circle
It is uniformly distributed on circumferencial direction.
8. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 1, it is characterised in that：Described first
Rectification branch road includes the first impedance matching circuit, first harmonic suppressor, the first radio frequency commutation diode and the first straight-through filtering
Device；Wherein the input of the first impedance matching circuit is electrically connected with the other end of the first feed probes, the first impedance matching circuit
Input, the input of the first straight-through wave filter of output end and first harmonic suppressor electrically connect, first harmonic suppressor
Output end electrically connected with the anode of the first radio frequency commutation diode, the negative electrode of the first radio frequency commutation diode and public ground level
Electrical connection；The output end of first straight-through wave filter is electrically connected with the one end loaded；
The second rectification branch road include the second impedance matching circuit, second harmonic suppressor, the second radio frequency commutation diode and
Second straight-through wave filter；Wherein the input of the second impedance matching circuit is electrically connected with the other end of the second feed probes, and second
The output end of impedance matching circuit is electrically connected with the input of second harmonic suppressor, the input of the second straight-through wave filter, the
The output end of two harmonic shutters is electrically connected with the negative electrode of the second radio frequency commutation diode, the anode of the second radio frequency commutation diode
Electrically connected with public ground level；The output end of second straight-through wave filter is electrically connected with the other end loaded.
9. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 8, it is characterised in that：Described first
Harmonic shutter, second harmonic suppressor include the fan-shaped suppressor of second harmonic and the fan-shaped suppressor of triple-frequency harmonics；First is humorous
The fan-shaped suppressor of the second harmonic of ripple suppressor, the fan-shaped suppressor of triple-frequency harmonics and the first impedance matching circuit, first harmonic press down
Device electrical connection processed；The fan-shaped suppressor of the second harmonic of second harmonic suppressor, the fan-shaped suppressor of triple-frequency harmonics and the second impedance
Connected with circuit, the second radio frequency commutation diode.
10. the dual polarization RECTIFYING ANTENNA of compact wide power input according to claim 8, it is characterised in that：Described
One radio frequency commutation diode, the second radio frequency commutation diode are Schottky diode.
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| CN108039591A (en) * | 2017-11-17 | 2018-05-15 | 复旦大学 | Dual-linear polarization RECTIFYING ANTENNA with harmonic inhibition capability |
| 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 |
| CN109193143A (en) * | 2018-09-06 | 2019-01-11 | 清华四川能源互联网研究院 | A kind of low power microwave receiving rectification antenna |
| CN109193148A (en) * | 2018-09-16 | 2019-01-11 | 复旦大学 | A kind of four frequency range Circular polarized omni-directional RECTIFYING ANTENNAs |
| 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 |
| CN109980340A (en) * | 2019-01-04 | 2019-07-05 | 浙江大学 | A kind of adaptive microwave energy receptor surface based on conjugate impedance match |
| CN110137678A (en) * | 2019-04-18 | 2019-08-16 | 宁波大学 | A kind of voltage-multiplying type radio frequency RECTIFYING ANTENNA |
| CN111262045A (en) * | 2019-12-27 | 2020-06-09 | 四川大学 | Compact rectifying antenna with wide dynamic input power range |
| CN114730992A (en) * | 2019-11-13 | 2022-07-08 | 国立大学法人埼玉大学 | Antenna module and communication device equipped with same |
| CN115241638A (en) * | 2022-06-24 | 2022-10-25 | 四川大学 | Light and thin rectifying antenna coplanar and integrated with solar thin-film battery |
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