WO2018126602A1 - Cape d'invisibilité de protection contre les impulsions électromagnétiques, présentant une structure polygonale irrégulière - Google Patents

Cape d'invisibilité de protection contre les impulsions électromagnétiques, présentant une structure polygonale irrégulière Download PDF

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Publication number
WO2018126602A1
WO2018126602A1 PCT/CN2017/085956 CN2017085956W WO2018126602A1 WO 2018126602 A1 WO2018126602 A1 WO 2018126602A1 CN 2017085956 W CN2017085956 W CN 2017085956W WO 2018126602 A1 WO2018126602 A1 WO 2018126602A1
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WO
WIPO (PCT)
Prior art keywords
inductor
electromagnetic pulse
capacitor
protection
irregular polygonal
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PCT/CN2017/085956
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English (en)
Chinese (zh)
Inventor
王羚
邓力
李书芳
张贯京
葛新科
高伟明
张红治
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深圳市景程信息科技有限公司
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Publication of WO2018126602A1 publication Critical patent/WO2018126602A1/fr

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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

Definitions

  • the invention relates to the field of electromagnetic protection, in particular to an electromagnetic pulse protection stealth cloak with an irregular polygonal structure.
  • Electromagnetic pulse has a wide range of functions, high peak field strength, short rise time, wide frequency range, and high lethality. It not only poses a threat to the contemporary miniaturization and integration of electronic information systems, but also causes different degrees of human body. The damage has become a great hidden danger, and the emergence and maturity of electromagnetic pulse weapons have seriously affected the military security and social stability of countries all over the world.
  • the existing protection methods can be divided into circuit level protection methods and space level protection methods.
  • the former is used to shield electromagnetic pulses in the protection circuit, and the latter is used to protect the electromagnetic pulse field in the space.
  • Circuit-level protection devices are mainly limited to amplitudes, filters, etc.
  • the existing various circuit-level protection devices are limited in protection bandwidth, there is insertion loss and insertion loss increases and noise occurs under the action of high-power electromagnetic pulses. Permanent damage such as deterioration of the coefficient.
  • Space-level protection methods mainly include frequency selective surfaces, energy selective surfaces, metamaterial absorbers, and new materials (such as nanomaterials, graphene, plasma). Their protective bandwidth is limited, and there is no guarantee that the total reflection will absorb or attenuate the electromagnetic pulse. The protected object will be affected more or less by the electromagnetic pulse, and the energy selective surface still has a section before the protection function is fully turned on. The leakage of electromagnetic waves in time has certain hidden dangers.
  • the main object of the present invention is to provide an electromagnetic pulse protection stealth cloak with an irregular polygonal structure, which aims to solve the technical problem of shielding electromagnetic pulses.
  • the present invention provides an electromagnetic pulse protection stealth cloak of irregular polygonal structure, wherein the electromagnetic pulse protection stealth cloak of the circular structure is composed of a plurality of irregular polygon protective layers, wherein each one does not The protective layer of the regular polygon is provided with a plurality of protection units from the inside to the outside;
  • Each of the protection units has a dielectric constant of ⁇ and a magnetic permeability of ⁇ , wherein
  • X i .Y i is the vertex coordinates of the protective layer
  • ⁇ is the scaling ratio between the outer contour line and the inner contour line of the protective layer
  • x and y are the coordinates of the center point of the guard unit.
  • the bottom of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure is provided with an annular ground plate, and the electromagnetic pulse protection stealth cloak of the irregular polygonal structure is provided with a plurality of metallized tubes, the metallized tube is vertical Passing through the annular protective layer and connecting with the annular grounding plate, the metallized tube is connected to the shielding unit, and the metalizing tube is provided with a plurality of metallized holes;
  • the protection unit includes a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth inductor, a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor, wherein the first inductor and the second inductor
  • the third inductor and the fourth inductor are connected in series by a wire, and one end of the fifth inductor is connected between the first inductor and the fourth inductor, and the other end of the fifth inductor is connected to the second inductor and the third inductor.
  • the first capacitor is connected to a wire connected in series between the first inductor and the second inductor
  • the second capacitor is connected to a wire connected in series between the first inductor and the fourth inductor
  • the third capacitor a wire connected in series between the second inductor and the third inductor
  • the fourth capacitor being connected to the wire connected in series between the third inductor and the fourth inductor
  • Each of the four capacitors is connected to a metallized hole
  • the inductance values of the second inductor and the fourth inductor are both 4L 1
  • the inductance of the fifth inductor is 2L 2
  • the inductance values of the first inductor and the third inductor are both 4L 3
  • the third and fourth capacitors are capacitance of the capacitor C / 4. among them,
  • d is the length of the guard unit
  • L 1 , L 2 and L 3 are the inductance values
  • C is the capacitance value.
  • the electromagnetic pulse frequency is a triangular electromagnetic pulse, a rectangular electromagnetic pulse, a sinusoidal electromagnetic pulse or a Gaussian electromagnetic pulse.
  • the technical solution of the invention adopts the above technical solution, and the technical effect of the invention is that the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the invention can completely reflect, absorb or attenuate the electromagnetic pulse, and the protected object is not affected by the electromagnetic pulse. It effectively avoids the electromagnetic pulse damage suffered by the electronic information system and prolongs the life of the electronic information system.
  • FIG. 1 is a schematic structural view of a preferred embodiment of an electromagnetic pulse protection stealth cloak of an irregular polygonal structure of the present invention
  • FIG. 2 is a perspective view of a preferred embodiment of an electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention
  • FIG. 3 is a cross-sectional view showing a preferred embodiment of an electromagnetic pulse protection invisible cloak of the irregular polygonal structure of the present invention
  • FIG. 4 is a schematic view of a preferred embodiment of a guard unit in an electromagnetic pulse protection invisible cloak of an irregular polygonal structure of the present invention
  • Figure 5 is a schematic view showing a preferred embodiment of the protection unit in the electromagnetic pulse protection stealth cloak of the regular polygonal structure of the present invention
  • 6-1 to 6-4 are schematic diagrams of four electromagnetic pulses in the simulation of an electromagnetic pulse protection stealth cloak of an irregular polygonal structure according to the present invention.
  • FIG. 7-1 to 7-3 are schematic diagrams of simulations of electromagnetic pulse protection stealth cloaks for triangular electromagnetic pulses of the irregular polygonal structure of the present invention.
  • 8-1 to 8-3 are schematic diagrams showing simulations of a rectangular electromagnetic pulse of an electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention.
  • 9-1 to 9-3 are electromagnetic pulse protection invisible cloaks of the irregular polygonal structure of the present invention for sinusoidal electricity Simulation diagram of magnetic pulse;
  • 10-1 to 10-3 are schematic diagrams showing the simulation of the Gaussian electromagnetic pulse of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention.
  • FIG. 1 is a schematic structural view of a preferred embodiment of an electromagnetic pulse protection invisible cloak of an irregular polygonal structure of the present invention
  • FIG. 2 is a preferred embodiment of an electromagnetic pulse protection invisible cloak of the irregular polygonal structure of the present invention.
  • 3 is a schematic cross-sectional view of a preferred embodiment of an electromagnetic pulse protection invisible cloak of the irregular polygonal structure of the present invention
  • FIG. 4 is a preferred embodiment of the protection unit in the electromagnetic pulse protection invisible cloak of the irregular polygonal structure of the present invention
  • Figure 5 is a schematic illustration of a preferred embodiment of a guard unit in an electromagnetic pulse protection invisible cloak of an irregular polygonal structure of the present invention.
  • the electromagnetic pulse protection stealth cloak 1 of the irregular polygonal structure of the present invention is superposed by a plurality of annular protective layers 10 to form a cylindrical structure.
  • the annular protective layer 10 includes an outer contour line and an inner contour line.
  • the outer contour line and the inner contour line are formed by connecting a plurality of irregular straight sides (as shown in FIG. 1 , there are 7 sides connected end to end),
  • the outer contour line and the inner contour line are scaled by a predetermined ratio (for example, ⁇ ), wherein the outer contour line and the inner contour line are a solid annular protective layer 10.
  • each of the annular protective layers 10 includes a plurality of guard units 100 therein.
  • a plurality of guard units 100 are continuously disposed on each of the annular protective layers 10.
  • the bottom of the electromagnetic pulse protection stealth cloak 1 of the irregular polygonal structure of the present invention is provided with an annular ground plate 20 (having the same shape as the protective layer 10), and the electromagnetic pulse protection stealth cloak 1 of the irregular polygonal structure is provided with multiple a metallized tube 106 vertically passing through the annular protective layer 10 and connected to the annular ground plate 20, the metallized tube 106 being connected to the protection unit 100, the metallization tube 106 A plurality of metallization holes 110 are disposed thereon.
  • the ground plate 20 and the metallization tube 107 may be omitted.
  • the protection unit 100 is a cubic structure.
  • the protective layer 10 is drawn Divided into small squares of size d (ie d1 in Figure 4), as far as possible to ensure that most areas can be divided into squares, can not be divided into square positions, replaced by square approximation, each square represents a protection Unit 100.
  • Each of the guard units 100 has a dielectric constant of ⁇ and a magnetic permeability of ⁇ .
  • X i .Y i is the vertex coordinates of the protective layer 10 (such as the coordinates of points P1, P2, P3, P4, P5, P6, and P7 in FIG. 5), ⁇
  • the scaling ratio between the outer contour line and the inner contour line of the protective layer 10 ( ⁇ is less than 1, and the value of ⁇ is between the longest distance from the center 0 to the inner contour line and the longest distance from the center 0 to the outer contour line.
  • the ratio), x and y are the coordinates of the center point of the guard unit 100.
  • each of the protection units 100 is made of the above-mentioned material having a dielectric constant of ⁇ and a magnetic permeability of ⁇ , the protection against electromagnetic pulses can be completed.
  • the dielectric constant ⁇ and the magnetic permeability ⁇ of the shielding unit 100 at different positions on each of the annular protective layers 10 are not the same.
  • a plurality of guard units 100 made of a plurality of different materials can form a protection against electromagnetic pulses, that is, guide the electromagnetic wave propagation path based on the conformal transformation theory and the optical transformation theory (refer to 2006, U. Leonhardt and JBPendry et al.
  • the material may be any of a variety of suitable materials such as nanomaterials, graphene materials, plasma materials, and the like.
  • each guard unit i.e., a small square in Figure 4
  • each of the protection units 100 employs four inductors and one capacitor to obtain a material having an equivalent dielectric constant of ⁇ and a magnetic permeability of ⁇ .
  • a metallized tube 106 is connected between the protective layer 10 and the protective layer 10. Specifically, as shown in FIG. 3 and FIG.
  • the protection unit 100 includes a first inductor 101 , a second inductor 102 , a third inductor 103 , a fourth inductor 104 , a fifth inductor 105 , and a first capacitor 106 .
  • first inductor 101 the second inductor 102, the third inductor 103, and the fourth inductor 104 are connected in series by wires to form a square structure
  • the fifth inductor 105 One end is connected between the first inductor 101 and the fourth inductor 104, and the other end of the fifth inductor 105 is connected between the second inductor 102 and the third inductor 103.
  • the first capacitor 106 is connected to the first inductor 101.
  • the second capacitor 107 is connected to a wire connected in series between the first inductor 101 and the fourth inductor 104
  • the third capacitor 108 is connected to the second inductor 102 and the third inductor
  • the fourth capacitor 109 is connected to a wire connected in series between the third inductor 103 and the fourth inductor 104
  • Each of the 10 9 is connected to a metallization hole 110.
  • the inductance values of the second inductor 102 and the fourth inductor 104 are both 4L 1 (refer to FIG.
  • the inductance of the fifth inductor 105 is 2L 2 (refer to FIG. 4 ), and the first inductor 101 and The inductance value of the third inductor 103 is 4L 3 , and the capacitance values of the first capacitor 106, the second capacitor 107, the third capacitor 108, and the fourth capacitor 109 are both C/4. among them,
  • d is the length of the protection unit 100
  • L 1 , L 2 and L 3 are inductance values
  • C is a capacitance value. It should be noted that the adjacent protection units 100 in the same annular protection layer 10 are connected to each other (such as the connection manner of the four protection units 100 in FIG. 4, the protection unit 100 in the upper left corner and the protection unit 100 in the upper right corner and The protection unit in the lower left corner is connected).
  • the frequency range of the electromagnetic pulse is positive infinity to negative infinity, but the energy of the electromagnetic pulse is mainly concentrated in a certain frequency range, and f is the maximum frequency corresponding to the frequency range in which the electromagnetic pulse energy is concentrated).
  • FIG. 7-1 to 7-3 are schematic diagrams of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention for the triangular electromagnetic pulse.
  • the triangular electromagnetic pulse passes through
  • the inner circle of the electromagnetic pulse stealth cloak 1 does not have a triangular pulse passing through, wherein, with reference to FIG.
  • the coordinates of the seven vertices are 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 horizontal axis represents time
  • the unit is ns
  • the range is 0-35 ns
  • the vertical axis represents current
  • the unit is mA.
  • FIG. 8-1 to 8-3 are schematic diagrams showing the simulation of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention for a rectangular electromagnetic pulse.
  • the rectangular electromagnetic pulse passes through the
  • the electromagnetic pulse protection stealth cloak of the irregular polygon structure is 1, the inner circle of the electromagnetic pulse stealth cloak 1 does not have a rectangular pulse passing through, wherein, with reference to FIG.
  • the coordinates of the seven vertices are 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 horizontal axis represents time
  • the unit is ns
  • the range is 0-35 ns
  • the vertical axis represents current
  • the unit is mA.
  • FIG. 9-1 to 9-3 are schematic diagrams showing the simulation of the sinusoidal electromagnetic pulse of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention.
  • the sinusoidal electromagnetic pulse passes through the When the electromagnetic pulse protection stealth cloak of the irregular polygon structure is 1, the inner circle of the electromagnetic pulse stealth cloak 1 does not have a sinusoidal pulse passing through, wherein, with reference to FIG.
  • the coordinates of the seven vertices are 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 horizontal axis represents time
  • the unit is ns
  • the range is 0-35 ns
  • the vertical axis represents current
  • the unit is mA.
  • FIG. 10-1 to 10-3 are schematic diagrams showing the simulation of the Gaussian electromagnetic pulse of the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the present invention.
  • the Gaussian electromagnetic pulse passes through the When the electromagnetic pulse protection stealth cloak of the irregular polygon structure is 1, the inner circle of the electromagnetic pulse stealth cloak 1 does not have a Gaussian pulse passing through, wherein, with reference to FIG.
  • the coordinates of the seven vertices are 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 ), in the graph of Gaussian electromagnetic pulse, the horizontal axis represents time, the unit is ns, and the range is 0-35 ns, the vertical axis represents current in mA.
  • the technical solution of the invention adopts the above technical solution, and the technical effect of the invention is that the electromagnetic pulse protection stealth cloak of the irregular polygonal structure of the invention can completely reflect, absorb or attenuate the electromagnetic pulse, and the protected object is not affected by the electromagnetic pulse. It effectively avoids the electromagnetic pulse damage suffered by the electronic information system and prolongs the life of the electronic information system.

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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

La présente invention concerne une cape d'invisibilité de protection contre les impulsions électromagnétiques, présentant une structure polygonale irrégulière. La cape d'invisibilité de protection contre les impulsions électromagnétiques présentant une structure circulaire est constituée de plusieurs couches de protection polygonales irrégulières empilées, chacune des couches de protection polygonales irrégulières étant pourvue de plusieurs unités de protection disposées d'un côté intérieur à un côté extérieur. La présente invention peut être mise en oeuvre pour totalement réfléchir, absorber ou atténuer des impulsions électromagnétiques, de telle sorte qu'un objet protégé ne soit pas affecté par ces impulsions électromagnétiques.
PCT/CN2017/085956 2017-01-07 2017-05-25 Cape d'invisibilité de protection contre les impulsions électromagnétiques, présentant une structure polygonale irrégulière WO2018126602A1 (fr)

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CN201710011633.6 2017-01-07
CN201710011633.6A CN106839886B (zh) 2017-01-07 2017-01-07 不规则多边形结构的电磁脉冲防护隐身斗篷

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Cited By (1)

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CN111260112A (zh) * 2020-01-08 2020-06-09 金陵科技学院 一种用于介质背景中的多层硅隐身斗篷

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111260112A (zh) * 2020-01-08 2020-06-09 金陵科技学院 一种用于介质背景中的多层硅隐身斗篷
CN111260112B (zh) * 2020-01-08 2023-11-28 金陵科技学院 一种用于介质背景中的多层硅隐身斗篷

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