CN106839886B - The stealthy cape of Spark gap of irregular polygon structure - Google Patents
The stealthy cape of Spark gap of irregular polygon structure Download PDFInfo
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- CN106839886B CN106839886B CN201710011633.6A CN201710011633A CN106839886B CN 106839886 B CN106839886 B CN 106839886B CN 201710011633 A CN201710011633 A CN 201710011633A CN 106839886 B CN106839886 B CN 106839886B
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- Prior art keywords
- inductance
- capacitance
- spark gap
- irregular polygon
- electromagnetic pulse
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H13/00—Means of attack or defence not otherwise provided for
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The present invention provides a kind of stealthy cape of Spark gap of irregular polygon structure, the stealthy cape of Spark gap of the circular configuration is made of the protective layer superposition of multiple irregular polygons, wherein, multiple protective units are arranged in the protective layer of each irregular polygon from the inside to surface.Implement the present invention can it is fully reflective, absorb or attenuate electromagnetic pulse, the object protected will not be influenced by electromagnetic pulse.
Description
Technical field
The present invention relates to electromagnetic protection field more particularly to a kind of Spark gap of irregular polygon structure are stealthy
Cape.
Background technology
Electromagnetic pulse has sphere of action wide, and peak electric field is high, and the rise time is short, wide frequency range, and lethality is big to wait spies
Point is not only increasingly miniaturized the present age and constitutes threat with integrated electronic information, different journeys can be also caused to human body
The damage of degree, becomes great hidden danger, and the appearance of electromagnetic pulse weapon and reaches its maturity that even more to have seriously affected the world each
The military security and social stability of state.
Based on different purposes, existing means of defence can be divided into circuit-level means of defence and space grade means of defence, preceding
Person is used for the conduction electromagnetic pulse in protection circuit, and the latter is used for the electromagnetic pulse field in protective zone.Circuit-level protective device
Main Finite Amplitude device, filter etc., existing various circuit-level protective devices are restricted on protection bandwidth, there is insertion damage
It consumes and also will appear the permanent damages such as insertion loss increases, noise coefficient degenerates under the action of high-power electromagnetic pulse
Wound.Space grade means of defence mainly has frequency-selective surfaces, energy to select surface, Meta Materials wave-absorber and new material (example
Such as nano material, graphene, plasma).Their protection bandwidth is all limited, and cannot be guaranteed fully reflective absorption
Or electromagnetic pulse is attenuated, the object protected still can more or less be influenced by electromagnetic pulse, and energy selects surface
There is also the electromagnetic wave leakages of a period of time before safeguard function fully opens, and there are certain hidden danger.
Invention content
The main purpose of the present invention is to provide a kind of stealthy cape of Spark gap of irregular polygon structure, purports
The technical issues of solving to Electro-Magnetic pulse Shielding.
To achieve the above object, the present invention provides a kind of stealthy buckets of Spark gap of irregular polygon structure
The stealthy cape of Spark gap of paulin, the circular configuration is made of the protective layer superposition of multiple irregular polygons, wherein
Multiple protective units are arranged in the protective layer of each irregular polygon from the inside to surface；
The dielectric constant of each protective unit is ε, magnetic conductivity μ, wherein
Wherein, Xi,YiFor the apex coordinate of protective layer, τ is the pantograph ratio between the outer contour and inner outline of protective layer
Example, x and y are the center point coordinate of protective unit.
Preferably, there are one annulars for the bottom setting of the stealthy cape of Spark gap of the irregular polygon structure
Earth plate, the multiple metallization pipes of the interior setting of the stealthy cape of Spark gap of the irregular polygon structure, the metal
Change pipe to pass perpendicularly through the annular shield layer and connect with the annular earth plate, the metallization pipe connects with the protective unit
It connects, multiple plated through-holes is provided on the metallization pipe；
The protective unit includes the first inductance, the second inductance, third inductance, the 4th inductance, the 5th inductance, the first electricity
Appearance, the second capacitance, third capacitance, the 4th capacitance, wherein the first inductance, the second inductance, third inductance, the 4th inductance are by leading
Line connects into square structure series connection, and one end of the 5th inductance connects between the first inductance and the 4th inductance, and described the
The other end of five inductance connects between the second inductance and third inductance, and first capacitance connection is in the first inductance and the second electricity
Concatenated conducting wire between sense, second capacitance connection concatenated conducting wire between the first inductance and the 4th inductance, the third
Capacitance connection concatenated conducting wire between the second inductance and third inductance, the 4th capacitance connection is in third inductance and the 4th electricity
Concatenated conducting wire between sense, first capacitance, the second capacitance, third capacitance and the 4th capacitance respectively connect a metallization
The inductance value of hole, the second inductance and the 4th inductance is 4L1, the inductance value of the 5th inductance is 2L2, the first inductance and third
The inductance value of inductance is 4L3, the first capacitance, the second capacitance, third capacitance and the 4th capacitance capacitance be C/4.Wherein, C=εzzD, d are the length of protective unit,
L1、L2And L3It is inductance value, C is capacitance.
Preferably, the calculation of d is as follows：D=λ/3, λ=C/f, C are light velocity constant, f is that electromagnetic pulse energy is concentrated
The corresponding maximum frequency of frequency range.
Preferably, the electromagnetic pulse frequency is triangle electromagnetic pulse, rectangle electromagnetic pulse, sinusoidal electromagnetic pulse or height
This electromagnetic pulse.
Using above-mentioned technical proposal, the technique effect brought is the present invention：Irregular polygon structure of the present invention
The stealthy cape of Spark gap can it is fully reflective, absorb or attenuate electromagnetic pulse, the object protected will not be by electricity
The influence of magnetic field impulse effectively prevents the electromagnetic pulse that electronic information is subject to and destroys, extends the longevity of electronic information
Life.
Description of the drawings
Fig. 1 is that the structure of the preferred embodiment of the stealthy cape of Spark gap of irregular polygon structure of the present invention is shown
It is intended to；
Fig. 2 is the perspective of the preferred embodiment of the stealthy cape of Spark gap of irregular polygon structure of the present invention
Figure；
Fig. 3 is the cross section of the preferred embodiment of the stealthy cape of Spark gap of irregular polygon structure of the present invention
Schematic diagram；
Fig. 4 be irregular polygon structure of the present invention the stealthy cape of Spark gap in protective unit preferred implementation
The schematic diagram of example；
Fig. 5 be regular polygon structure of the present invention the stealthy cape of Spark gap in protective unit preferred embodiment
Schematic diagram；
Fig. 6-1 to Fig. 6-4 is that the present invention emulates the stealthy cape of the Spark gap of irregular polygon structure
When four kinds of electromagnetic pulses schematic diagram；
Fig. 7-1 to Fig. 7-3 is that the stealthy cape of Spark gap of irregular polygon structure of the present invention is directed to triangle
The emulation schematic diagram of electromagnetic pulse；
Fig. 8-1 to Fig. 8-3 is the stealthy cape of Spark gap of irregular polygon structure of the present invention for rectangle electricity
The emulation schematic diagram of magnetic field impulse；
Fig. 9-1 to Fig. 9-3 is the stealthy cape of Spark gap of irregular polygon structure of the present invention for sinusoidal electricity
The emulation schematic diagram of magnetic field impulse；
Figure 10-1 to Figure 10-3 is that the stealthy cape of Spark gap of irregular polygon structure of the present invention is directed to Gauss
The emulation schematic diagram of electromagnetic pulse.
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific implementation mode, structure, feature and its effect of the present invention, detailed description are as follows.It should manage
Solution, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
Shown in 5, Fig. 1 is the excellent of the stealthy cape of Spark gap of irregular polygon structure of the present invention
Select the structural schematic diagram of embodiment；Fig. 2 is the preferred of the stealthy cape of Spark gap of irregular polygon structure of the present invention
The perspective view of embodiment；Fig. 3 is the preferred embodiment of the stealthy cape of Spark gap of irregular polygon structure of the present invention
Cross-sectional；Fig. 4 be irregular polygon structure of the present invention the stealthy cape of Spark gap in protective unit
The schematic diagram of preferred embodiment；Fig. 5 be irregular polygon structure of the present invention the stealthy cape of Spark gap in protect it is single
The schematic diagram of the preferred embodiment of member.The stealthy cape of the Spark gap of irregular polygon structure of the present invention 1 is by more
A superposition of annular shield layer 10 composition column structure.The annular shield layer 10 includes outer contour and inner outline, outer profile
Line and inner outline are that a plurality of irregular straight line is formed by connecting (as shown in Figure 1, being made of 7 side head and the tail connections), outside
Contour line is scaled with inner outline according to preset ratio (for example, τ), wherein is entity between outer contour and inner outline
Annular shield layer 10.Further, include multiple protective units 100 as shown in Fig. 2 to 5, in each annular shield layer 10.Often
Multiple protective units 100 are continuously set on a annular shield layer 10.Wherein, the electromagnetic pulse of irregular polygon structure of the present invention
Protecting the bottom of stealthy cape 1 to be arranged, there are one annular earth plates 20 (shape is identical as protective layer 10), described irregular polygon
The multiple metallization pipes 106 of setting in the stealthy cape 1 of Spark gap of shape structure, the metallization pipe 106 pass perpendicularly through institute
It states annular shield layer 10 and is connect with the annular earth plate 20, the metallization pipe 106 is connect with the protective unit 100,
It is provided with multiple plated through-holes 110 on the metallization pipe 106.In other embodiments, the earth plate 20 and metallization pipe
107 can be omitted.The protective unit 100 is cube structure.As shown in figure 4, by protective layer 10 be divided into size be d (i.e.
D1 in Fig. 4) small square, when division guarantees most of region division being square, can not be divided into as far as possible
The position of square, with square approximate replacement, each square represents a protective unit 100.
The dielectric constant of each protective unit 100 is ε, and magnetic conductivity is μ.
Wherein,
Wherein, Xi,YiFor the apex coordinate (coordinate of point P1, P2, P3, P4, P5, P6, P7 in such as Fig. 5) of protective layer 10,
τ is that (values of the τ less than 1, τ is center of circle O to inner outline for scaling between the outer contour and inner outline of protective layer 10
Longest distance and center of circle O are to the ratio between the longest distance of outer contour), x and the center point coordinate that y is protective unit 100.
That is, the material that if each protective unit 100 is ε with the dielectric constant of above-mentioned calculating and magnetic conductivity is μ making
Material, you can complete the protection to electromagnetic pulse.It should be noted that the protection list of the different location on each annular shield layer 10
The permittivity ε and magnetic conductivity of member 100 are μ and differ.Multiple protective units 100 that a variety of different materials make can be formed
Protection to electromagnetic pulse, i.e., the propagation path (reference based on conformal mapping theory and optical transformation theory guide electromagnetic waves
2006, U.Leonhardt and J.B.Pendry et al. existed simultaneously respectively《Science》Proposed on magazine conformal mapping theory and
Optical transformation theory is used for the propagation path of guide electromagnetic waves), to protect electromagnetic pulse.Due to conformal mapping theory
It is the prior art with optical transformation theory, therefore not to repeat here.The material can be the nano material of different size, graphene
Other any appropriate materials such as material, plasma material.
Further, it is known to which the dielectric constant and magnetic conductivity of material L-C circuit networks can carry out etc. in a distributed manner
Effect simulation.That is, for the material that above-mentioned dielectric constant is ε and magnetic conductivity is μ, circuit may be used and carry out equivalent mould
It is quasi-.Each protective unit (i.e. a small square in Fig. 4) is equivalent to a lc circuit, and circuit is welded on the base of protective layer
On plate.Specifically, in each protective unit 100 using four inductance and a capacitance come effective dielectric constant for ε and magnetic conductance
Rate is the material of μ.It is connected using metallization pipe 106 between protective layer 10 and protective layer 10.Specifically, such as Fig. 3 and Fig. 4 institutes
Show, the protective unit 100 includes the first inductance 101, the second inductance 102, third inductance 103, the 104, the 5th electricity of the 4th inductance
Feel the 105, first capacitance 106, the second capacitance 107, third capacitance 108, the 4th capacitance 109, wherein first the 101, second electricity of inductance
Sense 102, third inductance 103, the 4th inductance 104 connect into square structure by conducting wire and connect, and the one of the 5th inductance 105
End connects between the first inductance 101 and the 4th inductance 104, and the other end of the 5th inductance 105 is in the second inductance 102 and the
It is connected between three inductance 103, first capacitance 106 is connected to concatenated between the first inductance 101 and the second inductance 102 lead
Line, second capacitance 107 are connected to concatenated conducting wire between the first inductance 101 and the 4th inductance 104, the third capacitance
108 are connected to concatenated conducting wire between the second inductance 102 and third inductance 103, and the 4th capacitance 109 is connected to third inductance
103 and the 4th concatenated conducting wire between inductance 104, first capacitance 106, the second capacitance 107, third capacitance 108 and the 4th
Capacitance 109 respectively connects a plated through-hole 110.Wherein, the inductance value of the second inductance 102 and the 4th inductance 104 is 4L1
(with reference to shown in Fig. 4), 105 inductance value of the 5th inductance are 2L2(with reference to shown in Fig. 4), the first inductance 101 and third inductance
103 inductance value is 4L3, the first capacitance 106, the second capacitance 107, the capacitance of third capacitance 108 and the 4th capacitance 109 are equal
For C/4.Wherein, C=εzzD, d are protection
The length of unit 100, L1、L2And L3It is inductance value, C is capacitance.It should be noted that in the same annular shield layer 10
(connection type of four protective units 100, the protection list in the upper left corner in such as Fig. 4 are connected with each other between adjacent protective unit 100
Member 100 is connect with the protective unit of the protective unit 100 in the upper right corner and the lower left corner).
Further, in the present embodiment, the calculation of d is as follows：D=λ/3, λ=C/f, C are light velocity constant, f is electricity
The corresponding maximum frequency of frequency range that magnetic field impulse energy is concentrated.(frequency range of electromagnetic pulse is just infinite infinite to bearing, but
It is that the energy of electromagnetic pulse is concentrated mainly within the scope of certain frequency, f is that the frequency range that electromagnetic pulse energy is concentrated is corresponding
Maximum frequency).For a rectangular pulse, the duration was 1 nanosecond, then the energy of the rectangular pulse is concentrated mainly on 0-
10GHz, then according to λ=C/f=3*108/10*109=3 centimetres, then the size of each protective unit 100 be less than or equal to d=λ/
3=3m/3=1cm.
The barrier propterty of the stealthy cape of Spark gap in order to verify the irregular polygon structure 1, using four
Kind electromagnetic pulse verifies the barrier propterty of the stealthy cape of the Spark gap of the irregular polygon structure 1.
Wherein, Fig. 7-1 to Fig. 7-3 is that the stealthy cape of Spark gap of irregular polygon structure of the present invention is directed to three
The emulation schematic diagram of angular electromagnetic pulse, from Fig. 7-1 to Fig. 7-3 as can be seen that triangle electromagnetic pulse is by described irregular
When the stealthy cape 1 of the Spark gap of polygonized structure, there is no triangular pulse warps for the inner circle of the stealthy cape of electromagnetic pulse 1
Cross, wherein with reference to attached drawing 6-1, parameter is τ=0.5, the coordinate on seven vertex is P1 (1,0), P2 (0.5,0.8), P3 (0.2,
0.6), P4 (- 0.1,0.9), P5 (- 1,0.5), P6 (- 0.1, -0.5), P7 (0.5, -0.4), the figure of triangle electromagnetic pulse
Middle horizontal axis represents time, unit ns, ranging from 0-35ns, and the longitudinal axis represents electric current, unit mA.
Fig. 8-1 to Fig. 8-3 is the stealthy cape of Spark gap of irregular polygon structure of the present invention for rectangle electricity
The emulation schematic diagram of magnetic field impulse, from Fig. 8-1 to Fig. 8-3 as can be seen that rectangle electromagnetic pulse passes through the irregular polygon knot
When the stealthy cape 1 of the Spark gap of structure, there is no rectangular pulse processes for the inner circle of the stealthy cape of electromagnetic pulse 1, wherein ginseng
According to attached drawing 6-2, parameter is τ=0.5, the coordinate on seven vertex is P1 (1,0), P2 (0.5,0.8), P3 (0.2,0.6), P4 (-
0.1,0.9), P5 (- 1,0.5), P6 (- 0.1, -0.5), P7 (0.5, -0.4), when horizontal axis represents in the figure of rectangle electromagnetic pulse
Between, unit ns, ranging from 0-35ns, the longitudinal axis represent electric current, unit mA.
Fig. 9-1 to Fig. 9-3 is the stealthy cape of Spark gap of irregular polygon structure of the present invention for sinusoidal electricity
The emulation schematic diagram of magnetic field impulse, from Fig. 9-1 to Fig. 9-3 as can be seen that the irregular polygon knot is passed through in sinusoidal electromagnetic pulse
When the stealthy cape 1 of the Spark gap of structure, there is no sinusoidal impulse processes for the inner circle of the stealthy cape of electromagnetic pulse 1, wherein ginseng
According to attached drawing 6-3, parameter is τ=0.5, the coordinate on seven vertex is P1 (1,0), P2 (0.5,0.8), P3 (0.2,0.6), P4 (-
0.1,0.9), P5 (- 1,0.5), P6 (- 0.1, -0.5), P7 (0.5, -0.4), when horizontal axis represents in the figure of sinusoidal electromagnetic pulse
Between, unit ns, ranging from 0-35ns, the longitudinal axis represent electric current, unit mA.
Figure 10-1 to Figure 10-3 is that the stealthy cape of Spark gap of irregular polygon structure of the present invention is directed to Gauss
The emulation schematic diagram of electromagnetic pulse, from Figure 10-1 to Figure 10-3 as can be seen that Gauss electromagnetic pulse is by described irregular polygon
When the stealthy cape 1 of the Spark gap of shape structure, the inner circle of the stealthy cape of electromagnetic pulse 1 there is no Gaussian pulse process,
In, with reference to attached drawing 6-4, parameter is τ=0.5, the coordinate on seven vertex is P1 (1,0), P2 (0.5,0.8), P3 (0.2,0.6),
P4 (- 0.1,0.9), P5 (- 1,0.5), P6 (- 0.1, -0.5), P7 (0.5, -0.4), horizontal axis generation in the figure of Gauss electromagnetic pulse
Table time, unit ns, ranging from 0-35ns, the longitudinal axis represent electric current, unit mA.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content, or between or be used in other relevant skills indirectly
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of stealthy cape of Spark gap of irregular polygon structure, which is characterized in that the irregular polygon
The stealthy cape of Spark gap of structure is made of the protective layer superposition of multiple irregular polygons, each is irregular polygon
Multiple protective units, the stealthy cape of Spark gap of the irregular polygon structure is arranged in the protective layer of shape from the inside to surface
Bottom setting there are one annular earth plate, setting is more in the stealthy cape of Spark gap of the irregular polygon structure
A metallization pipe, the metallization pipe pass perpendicularly through the protective layer and are connect with the annular earth plate, the metallization pipe
It is connect with the protective unit, multiple plated through-holes is provided on the metallization pipe；
The protective unit includes the first inductance, the second inductance, third inductance, the 4th inductance, the 5th inductance, the first capacitance, the
Two capacitances, third capacitance, the 4th capacitance, wherein the first inductance, the second inductance, third inductance, the 4th inductance are connected by conducting wire
It connects at square structure, one end of the 5th inductance connects between the first inductance and the 4th inductance, the 5th inductance
The other end connected between the second inductance and third inductance, first capacitance connection is between the first inductance and the second inductance
Concatenated conducting wire, second capacitance connection concatenated conducting wire between the first inductance and the 4th inductance, the third capacitance connect
It is connected to concatenated conducting wire between the second inductance and third inductance, the 4th capacitance connection is between third inductance and the 4th inductance
Concatenated conducting wire, first capacitance, the second capacitance, third capacitance and the 4th capacitance respectively connect a plated through-hole, and second
The inductance value of inductance and the 4th inductance is, the inductance value of the 5th inductance is, the first inductance and third inductance
Inductance value is, the first capacitance, the second capacitance, third capacitance and the 4th capacitance capacitance be, wherein,,,
,For the length of protective unit,、AndIt is inductance value,For capacitance；
Each the dielectric constant of protective unit is, magnetic conductivity is, wherein
,,
,
,
,
,
Wherein,X i , Y i For the apex coordinate of protective layer,For the scaling between the outer contour and inner outline of protective layer,
X and y is the center point coordinate of protective unit.
2. the stealthy cape of Spark gap of irregular polygon structure as described in claim 1, which is characterized in that's
Calculation is as follows：=/ 3,=/,For light velocity constant,The frequency range concentrated for electromagnetic pulse energy is corresponding
Maximum frequency.
3. the stealthy cape of Spark gap of irregular polygon structure as claimed in claim 2, which is characterized in that described
Electromagnetic pulse frequency is triangle electromagnetic pulse, rectangle electromagnetic pulse, sinusoidal electromagnetic pulse or Gauss electromagnetic pulse.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011633.6A CN106839886B (en) | 2017-01-07 | 2017-01-07 | The stealthy cape of Spark gap of irregular polygon structure |
| PCT/CN2017/085956 WO2018126602A1 (en) | 2017-01-07 | 2017-05-25 | Electromagnetic pulse protection invisibility cloak having irregular polygonal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011633.6A CN106839886B (en) | 2017-01-07 | 2017-01-07 | The stealthy cape of Spark gap of irregular polygon structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106839886A CN106839886A (en) | 2017-06-13 |
| CN106839886B true CN106839886B (en) | 2018-07-20 |
Family
ID=59117317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710011633.6A Expired - Fee Related CN106839886B (en) | 2017-01-07 | 2017-01-07 | The stealthy cape of Spark gap of irregular polygon structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106839886B (en) |
| WO (1) | WO2018126602A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111260112B (en) * | 2020-01-08 | 2023-11-28 | 金陵科技学院 | Multilayer silicon stealth cloak used in medium background |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9677856B2 (en) * | 2006-07-25 | 2017-06-13 | Imperial Innovations Limited | Electromagnetic cloaking method |
| US8488247B2 (en) * | 2008-10-06 | 2013-07-16 | Purdue Research Foundation | System, method and apparatus for modifying the visibility properties of an object |
| CN104076924B (en) * | 2014-06-28 | 2017-04-05 | 西安电子科技大学 | A kind of combined electromagnetic concealed device |
| CN105828593A (en) * | 2016-05-31 | 2016-08-03 | 南京农业大学 | Device capable of realizing magnetic field shielding without changing surrounding magnetic field distribution |
| CN106714539A (en) * | 2017-01-07 | 2017-05-24 | 深圳市景程信息科技有限公司 | Electromagnetic pulse protection device of regular quadrilateral structure |
| CN106617370B (en) * | 2017-01-07 | 2018-11-20 | 深圳市景程信息科技有限公司 | The stealthy cape of the Spark gap of ellipsoidal structure |
-
2017
- 2017-01-07 CN CN201710011633.6A patent/CN106839886B/en not_active Expired - Fee Related
- 2017-05-25 WO PCT/CN2017/085956 patent/WO2018126602A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018126602A1 (en) | 2018-07-12 |
| CN106839886A (en) | 2017-06-13 |
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