CN106410387A - WiFi signal collecting battery-free device - Google Patents
WiFi signal collecting battery-free device Download PDFInfo
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- CN106410387A CN106410387A CN201610814207.1A CN201610814207A CN106410387A CN 106410387 A CN106410387 A CN 106410387A CN 201610814207 A CN201610814207 A CN 201610814207A CN 106410387 A CN106410387 A CN 106410387A
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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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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Abstract
The invention discloses a WiFi signal collecting battery-free device. The WiFi signal collecting battery-free device comprises a dielectric covering layer, a dielectric substrate and an earth plate which are consistent in sizes and laminated together from top to bottom, wherein a metal antenna patch is attached to one side, which is laminated together with the dielectric covering layer, of the dielectric substrate; a middle part of the dielectric substrate is provided with a cylindrical metal conductor which vertically passes through the dielectric plate; and the earth plate is provided with a circular hole which is concentric with a bottom surface of the cylindrical metal conductor. The WiFi signal collecting battery-free device has lower return loss, good impedance matching, a high standing-wave ratio and a relatively high gain, so that radio frequency energy in an environment can be received efficiently.
Description
Technical field
The invention belongs to electromagnetic energy reception antenna technical field is and in particular to one kind is used for receiving RF energy in environment
Collection WiFi signal exempt from cell apparatus.
Background technology
With the development of silicon microelectric technique, the power consumption of electronic system is more and more lower, occurs in that the electronics of microwatt level power consumption
System so that system can collect from surrounding environment that energy is this so that itself continuous firing is possibly realized can be from ring around
Energy is collected for system referred to as self-powered (self-powering) or the self-charging (self- of itself continuous firing in border
Rechargeable), exempt from battery (battery-less) electronic microsystem.
Content of the invention
Present invention solves the technical problem that there is provided a kind of structure collection WiFi signal simple and reasonable in design to exempt from electricity
Pool device, the less size having for the more other antenna of this antenna, the loss of relatively low clawback, good impedance matching
Higher gain.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, collects WiFi signal and exempts from cell apparatus, it is special
Levy and be including consistent size from top to bottom and dielectric passivation bonded to each other, medium substrate and earth plate, wherein with medium
It is pasted with metal antenna paster, the middle part of medium substrate is provided with and extends vertically through medium base on the medium substrate of cover layer laminating side
The cylindrical metal conductor of plate, earth plate is provided with the circular hole concentric with cylindrical metal conductor bottom surface；Described dielectric passivation
Material be Rogers RO6002, permittivity εr=2.94, thickness d=0.51mm, length and width is 30mm；Described
The radius of the circular coverage rate of metal antenna paster is 0.1106557 λ, and wherein λ=120mm, λ are the wavelength of 2.5GHz radio frequency,
Thickness is 0.02mm, and material is copper, and the material of described medium substrate is Rogers RO6010, permittivity εr=10.2, thickness
D=2.54mm, length and width is 30mm, the center position of the central point of metal antenna paster and medium substrate upper surface
Unanimously；The design shape of described metal antenna paster and size meet following requirement, set up plane right-angle coordinate, by initial point
(0mm, 0mm), as starting point, makes the line segment one of an a length of 18mm along x-axis positive direction, by line segment one with point (18mm, 0mm)
Obtain line segment two, then the direction being 42 ° along line segment two and x-axis angle as 138 ° of point of rotation rotate counterclockwise, in reference axis the
Extend to original 3 times in four intervals and be extended line segment two, this prolongation line segment two is with straight lineMake mirror for symmetry axis
Face is symmetrically extended line segment three, extends line segment two and the intersection point of prolongation line segment three is
This point is in straight lineOn, line segment two will be extended and extend the intersecting lens of line segment three in straight lineBoth sides are shorter
Line segment part leave out respectively, again by initial point (0mm, 0mm) as starting point, make an a length of 2.5mm's along x-axis positive direction
Line segment, the center of circle being first curve with B (2.5mm, -1.25mm), with A (2.5mm, 0mm) for end point, with B1
(3.75mm, -1.25mm) is another end points, radius r1=1.25mm, makes angle of circumference and is 90 °, and direction to x-axis and y-axis is just
The circular arc that direction is protruded, the center of circle being second curve with C (4.0625mm, -1.25mm), with B1(3.75mm, -1.25mm) is
End point, with C1(4.375mm, -1.25mm) is another end points, radius r2=0.3125mm, makes angle of circumference and is 180 °, direction
It is the circular arc protruding along y-axis negative direction, the center of circle being the 3rd curve with D (4.6875mm, -1.25mm), with C1
(4.375mm, -1.25mm) is end point, with D1(5mm, -1.25mm) is another end points, radius r3=0.3125mm, makes circle
Round angle is 180 °, and direction is the circular arc protruding along y-axis positive direction, the circle being the 4th curve with E (5.625mm, -1.25mm)
The heart, with D1(5mm, -1.25mm) is end point, with E1(6.25mm, -1.25mm) is another end points, radius r4=0.625mm, makees
Go out angle of circumference and be 180 °, direction is the circular arc protruding along y-axis negative direction, the circle being the 5th curve with F (7.5mm, -1.25mm)
The heart, with E1(6.25mm, -1.25mm) is end point, with F1(7.5mm, 0mm) is another end points, radius r5=1.25mm, makes
Angle of circumference is 90 °, and direction is the circular arc protruding to x-axis negative direction and y-axis positive direction, with G (7.5mm, -2.5mm) for the 6th
The center of circle of curve, with F1(7.5mm, 0mm) is end point, with G1(10mm, -2.5mm) is another end points, radius r6=2.5mm,
Make angle of circumference and be 90 °, direction is the circular arc protruding to x-axis and y-axis positive direction, with H (11.875mm, -2.5mm) for the 7th
The center of circle of curve, with G1(10mm, -2.5mm) is end point, with H1(13.75mm, -2.5mm) is another end points, radius r7=
1.875mm, makes angle of circumference and is 180 °, and direction is the circular arc protruding to y-axis negative direction, with I (16.25mm, -2.5mm) for the
The center of circle of eight curves, with H1(13.75mm, -2.5mm) is end point, with I1(16.25mm, 0mm) is another end points, radius r8
=2.5mm, makes angle of circumference and is 90 °, and direction is the circular arc protruding to x-axis negative direction and y-axis positive direction, with I1(16.25mm,
It is 0mm) end point, b (18mm, 0mm) is another end points, make the line segment that a length is 1.75mm, in x-axis and y-axis plane
To initial graphics one, by initial graphics one with straight lineMake minute surface for symmetry axis and symmetrically obtain initial graphics two, initially
Figure one, initial graphics two, prolongation line segment two and prolongation line segment three merge and obtain rotating graphs one, by rotating graphs one with pointFor the point of rotation, turn clockwise successively 24 °, 48 °, 72 °, 96 °, 120 °,
144 °, 168 °, 192 °, 216 °, 240 °, 264 °, 288 °, 312 ° and 336 °, obtain rotating graphs two, rotating graphs three, rotation
Figure four, rotating graphs five, rotating graphs six, rotating graphs seven, rotating graphs eight, rotating graphs nine, rotating graphs ten, rotation
Figure 11, rotating graphs 12, rotating graphs 13, rotating graphs 14, rotating graphs 15, rotating graphs one, rotation
Figure two, rotating graphs three, rotating graphs four, rotating graphs five, rotating graphs six, rotating graphs seven, rotating graphs eight, rotation
Figure nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotating graphs 13, rotating graphs 14, rotation figure
Shape 15 merges and obtains closed figure, and the reduced radius of the circular coverage rate of closed figure are obtained institute to original 0.233 times
Need design shape and the size of metal antenna paster, obtain metal antenna paster according to design shape and size cutting；Described circle
One end of cylindricality metallic conductor is connected with metal antenna paster, and the material of cylindrical metal conductor is copper, its bottom surface radius r=
The junction center of circle of 0.5mm, thickness d=2.54mm, cylindrical metal conductor and metal antenna paster and four sides of medium substrate
The vertical range on side is respectively 16.6mm, 16.6mm, 13.4mm and 13.4mm, the output of the described cylindrical metal conductor other end
Interface is connected with energy management circuit, and this energy management circuit is used for being stored the energy absorbing.
The technique effect of the present invention is：Collection WiFi signal is exempted from cell apparatus and is had lower return loss, good resistance
Anti- coupling and standing-wave ratio and higher gain are such that it is able to RF energy in efficient reception environment.
Brief description
Fig. 1 is the structural representation of metal antenna paster；
Fig. 2 is to collect WiFi signal to exempt from cell apparatus construction schematic diagram；
Fig. 3 is the return loss exempting from cell apparatus using the collection WiFi signal of HFSS antenna modeling simulation software simulation
Figure；
Fig. 4 is the gain diagram exempting from cell apparatus using the collection WiFi signal of HFSS antenna modeling simulation software simulation.
In figure：1st, dielectric passivation, 2, medium substrate, 3, earth plate, 4, metal antenna paster, 5, cylindrical metal leads
Body, 6, circular hole.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in specific implementation process of the present invention is carried out clear, complete
Whole, specific description.
The core of this invention is to collect WiFi signal to exempt from cell apparatus design, needs to receipts in microstrip antenna designs
Collection WiFi signal exempts from the size of the metal antenna paster of cell apparatus, and the size of medium substrate, thickness carry out theoretic estimation,
The collection WiFi signal that more quickly could accurately find suitable CF when simulated experiment exempts from cell apparatus.Institute
By following taking rectangular microstrip antenna as a example, the theoretical calculation method of explanation each data parameters of microstrip antenna.
Patch size L × W, patch width W is：
In (1) formula, c is the light velocity, f0For forbidden band centre frequency, εrFor relative dielectric constant.
The relative efficiency permittivity ε of microstrip antenna medium substratereFor：
H represents thickness of dielectric layers, and in order to reduce the impact to antenna performance for the surface wave, the thickness of dielectric substrate should
Meet theoretical calculation formula：
Wherein fuHighest frequency for the work of microstrip antenna.
The equivalent radiated power gap length △ L of microstrip antenna is：
Then length L of microstrip antenna paster is：
Size L of earth plateg×WgMeet following theoretical formula
Lg≥L+6h (6)
Wg≥W+6h (7)
Rectangular microstrip antenna be that coaxial line is fed, after determining the length and width of rectangular patch, typically
The normal impedance of 50 Ω is added in microstrip antenna.
As shown in Figure 1-2, collect WiFi signal and exempt from cell apparatus, including consistent size from top to bottom and Jie bonded to each other
Matter cover layer 1, medium substrate 2 and earth plate 3, the medium substrate 2 of side of wherein fitting with dielectric passivation 1 is pasted with metal
Antenna patch 4, the middle part of medium substrate 2 is provided with the cylindrical metal conductor 5 extending vertically through medium substrate 2, and earth plate 3 is provided with
The circular hole 6 concentric with cylindrical metal conductor 5 bottom surface；The material of described dielectric passivation 1 is Rogers RO6002, and dielectric is normal
Number εr=2.94, thickness d=0.51mm, length and width is 30mm；The half of the circular coverage rate of described metal antenna paster 4
Footpath is 0.1106557 λ, and wherein λ=120mm, λ are the wavelength of 2.5GHz radio frequency, and thickness is 0.02mm, and material is copper, is given an account of
The material of matter substrate 2 is Rogers RO6010, permittivity εr=10.2, thickness d=2.54mm, length and width is
30mm, the central point of metal antenna paster 4 is consistent with the center position of medium substrate 2 upper surface；Described metal antenna paster 4
Design shape and size meet following require, set up plane right-angle coordinate, by initial point (0mm, 0mm) as starting point, along x-axis
Positive direction makes the line segment one of an a length of 18mm, by line segment one with point (18mm, 0mm) as 138 ° of point of rotation rotate counterclockwise
Obtain line segment two, then the direction being 42 ° along line segment two and x-axis angle, extend to original 3 times in reference axis the 4th interval and obtain
To extending line segment two, this prolongation line segment two is with straight lineMake minute surface for symmetry axis and be symmetrically extended line segment three, extend
Line segment two and extend the intersection point of line segment three and beThis point is in straight line
On, line segment two will be extended and extend the intersecting lens of line segment three in straight lineThe shorter line segment part in both sides is left out respectively,
Again by initial point (0mm, 0mm) as starting point, make the line segment of an a length of 2.5mm along x-axis positive direction, with B (2.5mm ,-
1.25mm) be first curve the center of circle, with A (2.5mm, 0mm) be end point, with B1(3.75mm, -1.25mm) is the other end
Point, radius r1=1.25mm, makes angle of circumference and is 90 °, and direction is the circular arc protruding to x-axis and y-axis positive direction, with C
(4.0625mm, -1.25mm) is the center of circle of second curve, with B1(3.75mm, -1.25mm) is end point, with C1
(4.375mm, -1.25mm) is another end points, radius r2=0.3125mm, makes angle of circumference and is 180 °, direction is along y-axis losing side
To the circular arc protruding, the center of circle being the 3rd curve with D (4.6875mm, -1.25mm), with C1(4.375mm, -1.25mm) is
End point, with D1(5mm, -1.25mm) is another end points, radius r3=0.3125mm, makes angle of circumference and is 180 °, direction is along y
The circular arc that axle positive direction is protruded, the center of circle being the 4th curve with E (5.625mm, -1.25mm), with D1(5mm, -1.25mm) is
End point, with E1(6.25mm, -1.25mm) is another end points, radius r4=0.625mm, makes angle of circumference and is 180 °, direction is
The circular arc protruding along y-axis negative direction, the center of circle being the 5th curve with F (7.5mm, -1.25mm), with E1(6.25mm, -1.25mm)
For end point, with F1(7.5mm, 0mm) is another end points, radius r5=1.25mm, makes angle of circumference and is 90 °, and direction is to bear to x-axis
Direction and the circular arc of y-axis positive direction protrusion, the center of circle being the 6th curve with G (7.5mm, -2.5mm), with F1(7.5mm, 0mm) is
End point, with G1(10mm, -2.5mm) is another end points, radius r6=2.5mm, makes angle of circumference and is 90 °, direction is to x-axis and y
The circular arc that axle positive direction is protruded, the center of circle being the 7th curve with H (11.875mm, -2.5mm), with G1(10mm, -2.5mm) is one
End points, with H1(13.75mm, -2.5mm) is another end points, radius r7=1.875mm, makes angle of circumference and is 180 °, direction is to y-axis
The circular arc that negative direction is protruded, the center of circle being the 8th curve with I (16.25mm, -2.5mm), with H1(13.75mm, -2.5mm) is one
End points, with I1(16.25mm, 0mm) is another end points, radius r8=2.5mm, makes angle of circumference and is 90 °, direction is to x-axis negative direction
And the circular arc that y-axis positive direction is protruded, with I1(16.25mm, 0mm) is end point, and b (18mm, 0mm) is another end points, makees a length
Line segment for 1.75mm, obtains initial graphics one, by initial graphics one with straight line in x-axis and y-axis planeIt is right
Claim axle to make minute surface and symmetrically obtain initial graphics two, initial graphics one, initial graphics two, prolongation line segment two and prolongation line segment three merge
Obtain rotating graphs one, by rotating graphs one with pointFor the point of rotation, suitable successively
Hour hands rotate 24 °, 48 °, 72 °, 96 °, 120 °, 144 °, 168 °, 192 °, 216 °, 240 °, 264 °, 288 °, 312 ° and 336 °, obtain
To rotating graphs two, rotating graphs three, rotating graphs four, rotating graphs five, rotating graphs six, rotating graphs seven, rotating graphs
8th, rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotating graphs 13, rotating graphs 14,
Rotating graphs 15, rotating graphs one, rotating graphs two, rotating graphs three, rotating graphs four, rotating graphs five, rotating graphs
6th, rotating graphs seven, rotating graphs eight, rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotation
Figure 13, rotating graphs 14, rotating graphs 15 merge and obtain closed figure, by the half of the circular coverage rate of closed figure
Footpath narrows down to design shape and the size that original 0.233 times obtains required metal antenna paster 4, according to design shape and size
Cutting obtains metal antenna paster 4；The aperture R=1.9mm of circular hole 6 on the earth plate 3 relative with cylindrical metal conductor 5；Institute
The one end stating cylindrical metal conductor 5 is connected with metal antenna paster 4, and the material of cylindrical metal conductor 5 is copper, its bottom surface half
Footpath r=0.5mm, thickness d=2.54mm, the junction center of circle of cylindrical metal conductor 5 and metal antenna paster 4 and medium substrate
Article 2 four, the vertical range of side is respectively 16.6mm, 16.6mm, 13.4mm and 13.4mm, and described cylindrical metal conductor 5 is another
The output interface at end is connected with energy management circuit, and this energy management circuit is used for being stored the energy absorbing.
Fig. 3 is the return loss exempting from cell apparatus using the collection WiFi signal of HFSS antenna modeling simulation software simulation
Figure, as seen from the figure, the return loss that this collection WiFi signal exempts from cell apparatus is -44dB, returning than other same volume antennas
Ripple loss is also little, and performance is very good.
Fig. 4 is the gain diagram exempting from cell apparatus using the collection WiFi signal of HFSS antenna modeling simulation software simulation, by
Figure understands, it is 3.6dB that this collection WiFi signal exempts from cell apparatus in the maximum gain of 2.5GHz, and directionality is very stable.
Embodiment above describes general principle, principal character and the advantage of the present invention, the technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the simply explanation present invention's described in above-described embodiment and specification is former
Reason, under the scope without departing from the principle of the invention, the present invention also has various changes and modifications, and these changes and improvements each fall within
In the scope of protection of the invention.
Claims (1)
1. collect WiFi signal and exempt from cell apparatus it is characterised in that including consistent size and medium bonded to each other covers from top to bottom
Cap rock, medium substrate and earth plate, the medium substrate of side of wherein fitting with dielectric passivation is pasted with metal antenna paster,
The middle part of medium substrate is provided with the cylindrical metal conductor extending vertically through medium substrate, and earth plate is provided with is led with cylindrical metal
The concentric circular hole in body bottom surface；The material of described dielectric passivation is Rogers RO6002, permittivity εr=2.94, thickness d=
0.51mm, length and width is 30mm；The radius of the circular coverage rate of described metal antenna paster is 0.1106557 λ, wherein
λ=120mm, λ are the wavelength of 2.5GHz radio frequency, and thickness is 0.02mm, and material is copper, and the material of described medium substrate is Rogers
RO6010, permittivity εr=10.2, thickness d=2.54mm, length and width is 30mm, the central point of metal antenna paster
Consistent with the center position of medium substrate upper surface；The design shape of described metal antenna paster and size meet following wanting
Ask, set up plane right-angle coordinate, by initial point (0mm, 0mm) as starting point, make the line of an a length of 18mm along x-axis positive direction
Duan Yi, line segment one is obtained line segment two with point (18mm, 0mm) for 138 ° as point of rotation rotate counterclockwise, then along line segment two and x-axis
Angle is 42 ° of direction, extends to original 3 times and be extended line segment two in reference axis the 4th interval, this prolongation line segment two
With straight lineMake minute surface for symmetry axis and be symmetrically extended line segment three, the intersection point extending line segment two and extending line segment three
ForThis point is in straight lineOn, line segment two will be extended and extend line segment
Three intersecting lens is in straight lineThe shorter line segment part in both sides is left out respectively, plays initial point (0mm, 0mm) conduct again
Point, makes the line segment of an a length of 2.5mm along x-axis positive direction, the center of circle being first curve with B (2.5mm, -1.25mm), with
A (2.5mm, 0mm) is end point, with B1(3.75mm, -1.25mm) is another end points, radius r1=1.25mm, makes angle of circumference
For 90 °, direction is the circular arc protruding to x-axis and y-axis positive direction, the circle being second curve with C (4.0625mm, -1.25mm)
The heart, with B1(3.75mm, -1.25mm) is end point, with C1(4.375mm, -1.25mm) is another end points, radius r2=
0.3125mm, makes angle of circumference and is 180 °, direction is the circular arc protruding along y-axis negative direction, with D (4.6875mm, -1.25mm) is
The center of circle of the 3rd curve, with C1(4.375mm, -1.25mm) is end point, with D1(5mm, -1.25mm) is another end points, half
Footpath r3=0.3125mm, make angle of circumference be 180 °, direction be along y-axis positive direction protrude circular arc, with E (5.625mm ,-
1.25mm) be the 4th curve the center of circle, with D1(5mm, -1.25mm) is end point, with E1(6.25mm, -1.25mm) is another
End points, radius r4=0.625mm, make angle of circumference be 180 °, direction be along y-axis negative direction protrude circular arc, with F (7.5mm ,-
1.25mm) be the 5th curve the center of circle, with E1(6.25mm, -1.25mm) is end point, with F1(7.5mm, 0mm) is the other end
Point, radius r5=1.25mm, makes angle of circumference and is 90 °, and direction is the circular arc protruding to x-axis negative direction and y-axis positive direction, with G
(7.5mm, -2.5mm) is the center of circle of the 6th curve, with F1(7.5mm, 0mm) is end point, with G1(10mm, -2.5mm) is another
End point, radius r6=2.5mm, makes angle of circumference and is 90 °, and direction is the circular arc protruding to x-axis and y-axis positive direction, with H
(11.875mm, -2.5mm) is the center of circle of the 7th curve, with G1(10mm, -2.5mm) is end point, with H1(13.75mm ,-
It is 2.5mm) another end points, radius r7=1.875mm, makes angle of circumference and is 180 °, and direction is the circle protruding to y-axis negative direction
Arc, the center of circle being the 8th curve with I (16.25mm, -2.5mm), with H1(13.75mm, -2.5mm) is end point, with I1
(16.25mm, 0mm) is another end points, radius r8=2.5mm, makes angle of circumference and is 90 °, direction is to x-axis negative direction and y-axis
The circular arc that positive direction is protruded, with I1(16.25mm, 0mm) is end point, and b (18mm, 0mm) is another end points, makees a length and is
The line segment of 1.75mm, obtains initial graphics one, by initial graphics one with straight line in x-axis and y-axis planeFor symmetrical
Axle is made minute surface and is symmetrically obtained initial graphics two, and initial graphics one, initial graphics two, prolongation line segment two and prolongation line segment three merge
To rotating graphs one, by rotating graphs one with pointFor the point of rotation, up time successively
Pin rotates 24 °, 48 °, 72 °, 96 °, 120 °, 144 °, 168 °, 192 °, 216 °, 240 °, 264 °, 288 °, 312 ° and 336 °, obtains
Rotating graphs two, rotating graphs three, rotating graphs four, rotating graphs five, rotating graphs six, rotating graphs seven, rotating graphs eight,
Rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotating graphs 13, rotating graphs 14, rotation
Turn figure 15, rotating graphs one, rotating graphs two, rotating graphs three, rotating graphs four, rotating graphs five, rotating graphs six,
Rotating graphs seven, rotating graphs eight, rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotation figure
Shape 13, rotating graphs 14, rotating graphs 15 merge and obtain closed figure, by the radius of the circular coverage rate of closed figure
Narrow down to design shape and the size that original 0.233 times obtains required metal antenna paster, cut out according to design shape and size
Cut and obtain metal antenna paster；One end of described cylindrical metal conductor is connected with metal antenna paster, cylindrical metal conductor
Material be copper, its bottom surface radius r=0.5mm, thickness d=2.54mm, the company of cylindrical metal conductor and metal antenna paster
The vertical range connecing the place center of circle with four sides of medium substrate is respectively 16.6mm, 16.6mm, 13.4mm and 13.4mm, described circle
The output interface of the cylindricality metallic conductor other end is connected with energy management circuit, and this energy management circuit is used for the energy absorbing
Amount is stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814207.1A CN106410387A (en) | 2016-09-11 | 2016-09-11 | WiFi signal collecting battery-free device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814207.1A CN106410387A (en) | 2016-09-11 | 2016-09-11 | WiFi signal collecting battery-free device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410387A true CN106410387A (en) | 2017-02-15 |
Family
ID=57999294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610814207.1A Withdrawn CN106410387A (en) | 2016-09-11 | 2016-09-11 | WiFi signal collecting battery-free device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410387A (en) |
-
2016
- 2016-09-11 CN CN201610814207.1A patent/CN106410387A/en not_active Withdrawn
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Application publication date: 20170215 |