759results about "Shielding materials" patented technology

The invention discloses a non-contact magnetoelectric composite current sensor with magnetism gathering and magnetic shielding. A sensor core is composed of a magnetoelectric sensing element, a magnetofluid layer, a magnetism gathering structure and a magnetic shielding layer. The magnetoelectric sensing element is made of manganese-doped lead magnesium niobate and amorphous alloy film composite materials, the outer side of the sensing element is coated with a magnetofluid layer made of soft magnetic composite materials, the magnetism gathering structure is made of permalloy materials with high magnetic conductivity and is divided into an upper part and a lower part, the upper part accommodates the sensing element and the magnetofluid layer, and the lower part accommodates the magnetic gathering structure. And the lower part is provided with a standardized groove for placing a conductor to be tested. The outermost layer is a magnetic shielding layer composed of multiple layers of nanocrystalline alloy strips, the vertical split type design is also adopted, and it is ensured that the magnetic shielding layer is tightly matched with the magnetic gathering structure through precision machining. The upper magnetic shielding layer and the lower magnetic shielding layer are detachably connected, and field installation is facilitated. The overall structure is compact, a circuit does not need to be disconnected during installation, and the device is especially suitable for on-line current monitoring requirements in the fields of smart grids, industrial automation and the like.

The invention belongs to the technical field of electromagnetic protection, and relates to an electromagnetic protection device based on mechanical wave nonlinear attenuation, which comprises a piezoelectric substrate, and a signal input component, a nonlinear attenuation component and a signal output component which are sequentially arranged on the piezoelectric substrate at intervals, the nonlinear attenuation component comprises an energy absorption structure, a deformation structure and a rigid connection structure. The energy absorption structures are made of energy absorption materials and are arranged above the piezoelectric substrate at intervals; the deformation structure is made of a mechanical metamaterial, and two ends of the deformation structure are respectively connected with the energy absorption structure and the piezoelectric substrate; one end of the rigid connection structure is connected with the energy absorption structure, and the other end is spaced from or abutted against the piezoelectric substrate; the signal input component converts electromagnetic wave signals into mechanical waves, the nonlinear attenuation component deforms under propagation of the mechanical waves, the deformation quantity is in direct proportion to the strength of the mechanical waves, and the signal output component converts the mechanical waves into the electromagnetic wave signals and outputs the electromagnetic wave signals. According to the invention, electromagnetic protection can be realized based on mechanical wave nonlinear attenuation.

The invention provides a magnetic memory and a preparation method thereof. The magnetic memory comprises a plurality of memory units, at least part of the memory units are arranged along a first direction, and each memory unit comprises a magnetic tunnel junction; at least part of the magnetic shielding structure is located between the adjacent storage units in the first direction, and the magnetic shielding structure and the adjacent storage units are arranged at intervals; wherein the magnetic shielding structures and the adjacent storage units are arranged at intervals. Due to the fact that the magnetic shielding structure is arranged between every two adjacent storage units, the storage area can be saved through the design, meanwhile, the magnetic shielding structures can prevent the storage units from making contact with the magnetic shielding structures to cause short circuit, and the storage units have the anti-magnetic characteristic of an opposite internal magnetic field. Therefore, the magnetic memory has the diamagnetic properties of a vertical magnetic field and an in-plane magnetic field, the diamagnetic capability of the magnetic memory is improved, and the reliability of the magnetic memory in a magnetic field environment is further improved.

The invention provides a flexible interference network deployment method and system based on carbon fiber conductive cloth. The method comprises the following steps: acquiring space field intensity data in a non-uniform electromagnetic field environment, and performing physical field correction on the space field intensity data to generate compensation field intensity data; a metal screen cloth structure is formed on the surface of the carbon fiber, and porosity distribution parameters are obtained through gradient difference generation treatment; forming a metal mesh cloth layer with gradient pore size distribution, and performing deformation adaptation on the pore size distribution in combination with real-time bending curvature data to generate dynamic and stable porosity distribution; based on electromagnetic field intensity associated region division on the metal mesh layer, dynamically adjusting the grounding resistance value of each divided region, and generating a resistance regulation and control parameter; physical connection between the metal screen cloth layer and the grounding end is realized, and electromagnetic shielding effectiveness parameters are output. According to the invention, adaptive shielding effectiveness optimization of the flexible interference network in a complex electromagnetic environment is realized.

In order to provide a shielding element for the electromagnetic shielding of an electronic component, which is lightweight, inexpensive to manufacture and has a simple structure, it is proposed that the shielding element comprise a base body with a coupling device by which the base body can be coupled to a corresponding device, and at least one electrically conductive layer which is provided at least partially on and / or in the base body, wherein the base body and the at least one electrically conductive layer are connected to each other, in particular by an injection molding process, an injection compression molding process and / or a pressing process.

The invention provides an iron-based magnetically soft alloy strip and a preparation method and application thereof, the alloy composition of the iron-based magnetically soft alloy strip is FeaCobCrcSidBeWfAlgGehRei (MxNy) j, 75 < = a < = 81, 5 < = b < = 11.9, 5 < = c < = 10, 2 < = d < = 4, 2 < = e < = 4, 2 < = f < = 4, 1 < = g < = 3, 0.5 < = h < = 2, 0.5 < = i < = 1.5, 0.1 < = j < = 1, x: y = 1, and a + b + c + d + e + f + g + h + i + j = 100; m is Ti and / or Zr, and N is nitrogen; wherein the nitride material has an iron-based grain phase and a germanium-tungsten-containing precipitated phase, the nitride is distributed between the interfaces of the iron-based grain phase, and the average grain size of the iron-based grain phase is 5-20 nm. The iron-based magnetically soft alloy strip can be suitable for complex application scenes, and the magnetic performance and reliability of the iron-based magnetically soft alloy are improved.

The invention provides a transparent electromagnetic shielding metal copper mesh and a preparation method and application thereof. The preparation method of the transparent electromagnetic shielding metal copper mesh comprises the steps that an electromagnetic shielding substrate is coated with an ink layer, then the ink layer is converted into a patterned metal copper mesh to be deposited on the surface of the electromagnetic shielding substrate through a femtosecond laser reduction direct writing method, and finally ink which is not converted into the metal mesh is cleaned through cleaning liquid. Obtaining a transparent electromagnetic shielding metal copper mesh; the ink is prepared from copper salt, water, reductive low-carbon alcohol and a nano material, and the nano material comprises at least one of a high-conductivity nano material and a high-permeability nano material. According to the method, the transparent electromagnetic shielding metal copper mesh is prepared through femtosecond laser reduction direct writing, by adjusting the line width and the period of the metal copper mesh, the shielding effectiveness is effectively improved under the condition that the high light transmittance of an electromagnetic shielding material is guaranteed, the technological method is simple and feasible, and high-efficiency and low-cost manufacturing of the transparent electromagnetic shielding metal copper mesh is achieved.

According to various embodiments of the disclosure, an electronic device may include: a hinge plate coupled at least in part between a first support including a first magnet and a second support including a second magnet, a first housing coupled at least in part to a first side of the hinge plate through the first support, a second housing coupled at least in part to a second side of the hinge plate through the second support and configured to be foldable with the first housing through the hinge plate, and a flexible display supported on the first and second supports and configured to be foldable. The flexible display may include: a display panel; a support plate disposed on a lower surface of the display panel; a first digitizer and a second digitizer disposed on a lower surface of the support plate spaced apart from each other through a second gap; a first-first shielding member comprising a magnetic shielding material and a first-second shielding member comprising a magnetic shielding material disposed on lower surfaces of the first and second digitizers spaced apart from each other through a third gap; a first metal plate and a second metal plate disposed on lower surfaces of the first-first and first-second shielding members spaced apart from each other through a fourth gap; a third-first shielding member comprising a magnetic shielding material disposed on an upper surface of a first magnetization region of the first support in a first space between the first metal plate and the first support, and a third-second shielding member comprising a magnetic shielding material spaced apart from the third-first shielding member through a sixth gap and disposed on an upper surface of a second magnetization region of the second support in a second space between the second metal plate and the second support; and a fourth-first shielding member comprising a magnetic shielding material disposed on an upper surface of the third-first shielding member and surrounding at least a portion of the third-first shielding member through the sixth gap, and a fourth-second shielding member comprising a magnetic shielding material spaced apart from the fourth-first shielding member through the sixth gap, disposed on an upper surface of the third-second shielding member, and surrounding at least a portion of the third-second shielding member through the sixth gap.

The invention belongs to the field of composite materials, and particularly relates to a ceramic-based composite high-temperature wave-absorbing material and a preparation method and application thereof. The composite material provided by the invention comprises the following components: a fiber preform, a multi-layer interface, a wave-absorbing phase and a ceramic matrix, the fiber preform is a structural bearing part made of a composite material; the multi-layer interface is deposited on the surface of the fiber preform and comprises a PyC interface, a BN interface and a SiC interface; the wave-absorbing phase is dispersed in the fiber preform and is a bismuth layered structure ceramic phase; the ceramic matrix is filled in the fiber preform and the inner part and the surface of the multi-layer interface, and the components of the ceramic matrix are one or more of SiC, Si3N4 and SiCN. The composite material provided by the invention can keep relatively good wave-absorbing performance at high temperature, has excellent mechanical properties and thermal stability, and has wide application prospects in the fields of heat-resistant protection, aerospace, radar wave-absorbing, stealth technology, electronic warfare, communication shielding and the like.

The embodiment of the invention discloses electronic equipment, a composite board and a preparation method thereof, and relates to the field of board structures. The conductive performance of the composite board is improved. According to the specific scheme, the composite board comprises a composite layer, a carbon fiber yarn layer, a conductive layer and a floor. The composite layer is provided with a groove structure; the carbon fiber yarn layer is embedded in the composite layer, and part of the carbon fiber yarn layer is located in the groove structure. The conductive layer and the composite layer are stacked, and the conductive layer covers at least part of the groove structure and is electrically connected with the carbon fiber yarn layer. One side of the conductive layer away from the composite layer is electrically connected with the floor. And the conductive layer is electrically conducted with the carbon fiber yarn layer. And the carbon fiber yarn layer embedded in the composite layer is electrically connected with the floor through the arrangement of the groove structure and the conductive layer. Therefore, charges in the whole carbon fiber yarn layer can flow to the floor through the conductive layer. And the whole carbon fiber yarn layer has an electromagnetic compatibility protection effect. When the composite board is applied to the electronic equipment, the electromagnetic compatibility protection performance of the electronic equipment can be improved.

A system for processing material, including at least one microwave generator, at least one microwave guide operatively connecting the at least one microwave generator to at least a first conveyor unit, and the first conveyor unit provided in a first housing that comprises at least one opening configured to receive microwave energy via a first microwave guide. The first conveyor unit is configured to receive and process a quantity of material, which includes heating the material to a first temperature by applying microwave energy to the material within the first housing.

The present invention provides a high-temperature nylon / nylon 66 alloy electromagnetic shielding composite material and a preparation method therefor. The raw materials of the composite material comprise: high-temperature nylon, nylon 66, modified glass fibers, modified carbon nanotubes, expanded graphite and an auxiliary agent. The high-temperature nylon and the nylon 66 serve as a matrix resin; the modified glass fibers, the modified carbon nanotubes and the expanded graphite are compounded to serve as a filling agent, so as to enhance the mechanical strength of the matrix resin; and the compatibility between the matrix resin and the filling agent is enhanced by means of the auxiliary agent. The dissipation path of electromagnetic waves is further increased by means of the modified carbon nanotubes, thereby enhancing the interfacial polarization effect; the dispersing capacity of the modified carbon nanotubes in the matrix resin is enhanced by means of the expanded graphite, thereby reducing the surface contact resistance; and the electrically conductive paths and the heat dissipation are increased by means of the modified glass fibers, so as to further improve the electromagnetic wave loss capacity. The high-temperature nylon / nylon 66 alloy electromagnetic shielding composite material prepared in the present application not only has excellent dielectric properties, but also has good heat-conducting properties.

An electromagnetic wave- and magnetic field-absorbing-and-shielding sheet according to an exemplary embodiment of the present invention is implemented by comprising: an electromagnetic wave- and magnetic field-absorbing-and-shielding unit having a plurality of magnetic layers stacked to shield electromagnetic waves and magnetic fields; and an electromagnetic wave-absorbing adhesive member, which is arranged between the adjacent magnetic layers to absorb electromagnetic waves that have transmitted the magnetic layers or are reflected from the magnetic layers, and fixes the adjacent magnetic layers. Accordingly, together with an electromagnetic wave- and magnetic field-shielding function, the present invention has a function of enabling most of the electromagnetic waves reflected during shielding to be absorbed to minimize influence on surrounding electronic components, electronic devices, or a user of the electronic devices, caused by electromagnetic waves reflected during shielding and the magnetic field shielding, and thus can be widely applied to various electronic devices and the like.

The invention relates to a large-size double-layer splicing type ferrite magnetic shielding structure, in particular to a low-noise magnetic shielding barrel structure which is particularly suitable for an ultra-high sensitive magnetic field and inertial measurement device and miniaturization integration application of the ultra-high sensitive magnetic field and inertial measurement device. The magnetic shielding barrel is manufactured by splicing single large-size ferrite blocks into a double-layer cylinder. And the seam at the splicing part of the inner layer is blocked by the ferrite on the outer layer, so that the splicing does not generate large magnetic flux leakage. The double-layer configuration improves the shielding coefficient and reduces the magnetic noise at the same time. The novel large-size double-layer splicing type ferrite magnetic shielding structure shielding barrel is simple in processing technology, the shielding effect is not affected while the material cost is saved, the magnetic noise is reduced through the double-layer barrel structure, and the defect that the magnetic noise caused by a traditional single-layer ferrite magnetic shielding barrel cannot be further reduced is overcome.

The invention discloses a zero magnetic shielding device and a use method thereof, and the device comprises a magnetic shielding cylinder which is composed of a shielding cylinder body and a shielding cover detachably connected with the shielding cylinder body. And the non-magnetic multifunctional test frame is arranged in the magnetic shielding cylinder and consists of an arc-shaped seat, a lifting mechanism, a test bedplate, a track, a storage rack, a Helmholtz coil and a folding nylon magnetic sensing assembly. When the magnetic flux and residual magnetism switching test is carried out on the object to be tested in the magnetic shielding cylinder, the non-magnetic multifunctional test frame does not need to be replaced, the efficiency of the magnetic flux and residual magnetism switching test on the object to be tested in the magnetic shielding cylinder is improved, and the advantage of convenient switching test is achieved. And the method has the advantages of high measurement precision and wide application range.

The embodiment of the invention discloses a structural member and electronic equipment, relates to the technical field of electronic equipment, and is used for solving the technical problem that a carbon fiber composite material is easy to generate ESD (Electro-Static Discharge). The structural member comprises a structural member body and a conductive part. The structural part body comprises an insulating part and carbon fiber filaments, the carbon fiber filaments are embedded in the insulating part, and a part of the carbon fiber filaments are exposed out of the insulating part. And at least part of the conductive part is contacted and electrically connected with the exposed carbon fibers. Due to the fact that the carbon fiber filaments have good conductivity, the conductive part arranged on the structural part body can be communicated with the exposed carbon fiber filaments to form a conductive path, and the carbon fiber filaments in the structural part can serve as a discharging path of electrostatic current. Meanwhile, the conductive part in the structural member can also be used as a point location for electric connection. When a large current passes through the structural member, an electrostatic current can be discharged outwards through the carbon fiber filaments and the conductive part, so that the problem of ESD is reduced.

Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and / or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small footprint that is designed to be surface mounted.

Provided are: an electromagnetic wave shield material that has a magnetic layer containing magnetic particles, the magnetic layer having a scratch mark cross-sectional area of not less than 0.08 μm2 and not more than 1.25 μm2; and an electronic component and an electronic apparatus that include the electromagnetic wave shield material.

The invention relates to a composite nanofiber membrane and a preparation method and application thereof, and belongs to the technical field of wearable electromagnetic shielding materials. The preparation method comprises the following steps: dissolving polyacrylonitrile in a solvent, and spinning to obtain a polyacrylonitrile nanofiber membrane; then, the polyacrylonitrile nanofiber membrane is soaked in a trihydroxymethyl aminomethane hydrochloride solution containing dopamine; soaking the dopamine-coated fiber membrane in a mixed solution containing a copper salt or a silver salt, and then soaking the dopamine-coated fiber membrane in a reaction solution to obtain a modified nanofiber membrane; then spraying a dispersion liquid containing a conductive filler onto the modified nanofiber membrane to obtain a conductive filler modified nanofiber membrane; and finally, dissolving polyurethane into a solvent, and spinning by taking the conductive filler modified nanofiber membrane as a receiver to obtain the composite nanofiber membrane. The composite nanofiber membrane has excellent electromagnetic shielding performance, directional perspiration ability, air permeability, photothermal conversion ability, antibacterial property, mechanical strength and flexibility.

The invention provides a spinel type ferrite composite material with high-performance microwave absorption and a preparation method thereof, and relates to the technical field of microwave absorption ferrite materials. According to the composite material, spinel type ferrite such as Ni < 0.4 > Zn < 0.4 > Me < 0.2 > Fe < 1.94 > Cr < 0.01 > O < 4 > (Me = Mg, Co, Ni, Cu and Zn) is used as a substrate material, the substrate material is compounded with a carbon nano tube with the mass fraction of 6.5 wt% to obtain the composite material, and the finally obtained Ni < 0.4 > Zn < 0.4 > Cu < 0.2 > Fe < 1.94 > Cr < 0.01 > O < 4 > / 6.5 wt% CNTs show good microwave absorption performance and have a smaller microwave absorption peak and a thinner impedance matching thickness compared with other microwave absorbents. The preparation method comprises a solid phase method and an ultrasonic method, and is low in cost, simple to operate and short in preparation period. The prepared composite material has good wave-absorbing performance and has a wider application prospect.

The invention provides a dimming device and a laminated product, the dimming device comprises a dimming assembly, a display assembly and a touch control assembly, an electromagnetic shielding assembly is arranged between the dimming assembly and the touch control assembly, and the electromagnetic shielding assembly is used for reducing signal interference between the dimming assembly and the touch control assembly. The dimming device has dimming, display and touch functions, and can prevent the reduction of the sensitivity of the touch function.

In order to solve the problem that in the prior art, a magnetic field generated by a winding button battery interferes with electric appliances such as a portable electroacoustic device, the invention provides a winding button battery and an electroacoustic device, the winding button battery is composed of a shell, a cover body and a winding core, the shell and the cover body are assembled to form a closed cavity, and the winding core is arranged in the closed cavity. The roll core is arranged in the closed cavity; at least part of the cover body and / or at least part of the shell are / is set as a corrosion-resistant magnetic shielding part; the corrosion-resistant magnetic shielding part is made of a first metal material which is a metal material with the relative magnetic conductivity larger than or equal to 50 and the chromium element larger than 10 wt%. According to the winding button cell provided by the invention, the influence of a magnetic field generated by the winding core on the exterior of the button cell can be greatly reduced while the good corrosion resistance of the shell is ensured, and the increase of the appearance size or the reduction of the internal space of the button cell cannot be caused, so that the winding button cell has remarkable advantages.

A display device includes a silicon substrate including a display area including a light emitting element, and a pixel circuit portion which is inside the silicon substrate and connected to the light emitting element, and a non-display area which is adjacent to the display area. The non-display area includes a driving circuit portion which is inside the silicon substrate and through which an electrical signal is provided to the display area, and an electrostatic shielding layer covering the driving circuit portion.

A battery pack with electromagnetic compatibility (EMC) for an electric vehicle is presented that includes a battery pack housing, at least one battery module enclosed within the battery pack housing, and an electronics assembly enclosed within the battery pack housing, in which the electronics assembly comprises a DC-DC converter and an electronics assembly casing, wherein at least one of the electronics assembly and battery pack housing includes an electromagnetic interference (EMI) shield to enable EMC. The electronics assembly includes a battery management system (BMS) circuit board and a DC-DC converter control circuit board and a DC-DC converter power electronics board. The electronics assembly is of substantially a same dimension of a battery module, in which the EMI shield comprises at least one of a metallic screen, metallic wires, a metallic tape, a metallic sheet, a metallic coating, paramagnetic materials, carbon based materials and metallic and / or carbon particle-infused composites.

The invention discloses a self-calibration strain test system and method for a propeller composite material, and solves the problems of high-precision measurement and real-time calibration of dynamic strain in a complex flow field environment. The core of the system comprises a linear fiber grating sensor array attached to the surface of a blade and an optical fiber demodulator integrated on a propeller hub, sensors are symmetrically arranged in the spanwise direction, and infrared transmitting / receiving devices in pairs intersect at the circle center O of the propeller hub when positioning is accurate, so that a global reference is formed; a single sensor is installed through a double-shaft flexible hinge, a shape memory alloy (SMA) wire driving mechanism is integrated, and spanwise / chordwise independent micro-motion calibration can be achieved according to infrared intersection point offset. A failure alarm is arranged in the sensor, gallium-indium-tin alloy is filled in hollow glass beads, alarm is triggered only when more than or equal to 3 beads are broken to form a conductive path, false alarm is avoided, and the problem of dynamic strain monitoring of the large-deformation composite propeller in high-pressure, low-temperature and strong-electromagnetic-interference environments is solved through the anti-electromagnetic-interference module.

The present invention belongs to the technical field of microwave-absorbing materials, and specifically relates to a method for preparing a cobalt / attapulgite / carbon nanocomposite fiber with microwave-absorbing properties. The preparation method comprises the following steps: mixing a magnetic metal salt, a polymer, a solvent, and nano-attapulgite in a specific proportion, reacting under heating conditions and at room temperature to obtain a mixed spinning solution; electrospinning the mixed spinning solution to obtain composite nanofibers; and carbonizing the obtained composite nanofibers to obtain a cobalt / attapulgite / carbon nanocomposite fiber with microwave-absorbing properties. The present invention has the beneficial effect that, due to the adoption of the above-mentioned technical solution, the carbon nanocomposite fiber of the present invention combines excellent properties such as light weight, strong absorption, a wide effective absorption bandwidth, and a low filling ratio. The carbon nanofibers have excellent dielectric properties, electrical conductivity, thermal stability, and low density. Carbon nanofibers are expected to be used to produce ideal microwave-absorbing materials.

Provided is a cured or uncured electromagnetic wave shielding sheet with a carbon nanotube unwoven cloth having a thickness of not larger than 1 mm being impregnated with a resin and / or with the resin being laminated thereon, the sheet exhibiting a superior electromagnetic wave shielding performance with respect to millimeter waves and terahertz waves. The sheet may for example be one with a carbon nanotube unwoven cloth having a thickness of not larger than 1 mm and a specific resistance of not larger than 0.005 Ω·cm being impregnated with a resin and / or with the resin being laminated thereon; or one with a carbon nanotube unwoven cloth having a thickness of not larger than 1 mm, an air permeability of not larger than 0.5 cm3 / cm2·s and a specific resistance of not larger than 0.005 Ω·cm being impregnated with a resin.

An electromagnetic shielding and heat-conducting multi-layer material and a preparation method thereof. The multi-layer material includes an electric field shielding layer, an epoxy heat-conducting adhesive layer, and a magnetic field shielding layer. The electric field shielding layer includes a copper foil layer with a thickness of 5-12 μm. The magnetic field shielding layer has a thickness of 1-3 mm and includes a resin matrix A and carbon fiber cloth. By weight, the resin matrix A includes: 100 parts of bismaleimide resin, 60-68 parts of 3,3-diallylbisphenol A, 32-40 parts of triallyl isocyanurate, 18-20 parts of N,N-dimethylformamide, 100-160 parts of magnetic field shielding filler, 8-10 parts of di-sec-octyl phthalate, and 0.3-0.8 parts of cobalt naphthenate. The magnetic field shielding filler is compounded by nano-manganese zinc ferrite and micron nickel powder in a mass ratio of (80-120):(30-40). The electromagnetic shielding and heat-conducting multi-layer material of the present invention has both electric field and magnetic field shielding functions and is particularly suitable for high magnetic field and high electric field application environments.

The embodiment of the invention provides a novel high-integration ultra-wideband dual-channel high-energy microwave module for countering an unmanned aerial vehicle system, and relates to the field of electronic countermeasure, the module comprises a module cavity, the module cavity is internally provided with a high-voltage-resistant radio frequency substrate and a high-energy-storage radio frequency power supply control daughter board, and the high-voltage-resistant radio frequency substrate and the high-energy-storage radio frequency power supply control daughter board are arranged in the module cavity; a high-power radio frequency chip, an ultrahigh-power radio frequency chip and a high-voltage isolator are welded on the high-voltage-resistant radio frequency substrate; the high-power radio frequency chip and the ultrahigh-power radio frequency chip are connected with the high-energy-storage radio frequency power supply control daughter board; the high-power radio frequency chip and the ultra-high-power radio frequency chip are arranged in a cascade form; and the high-voltage isolator is located at the output cascade end of the last-stage ultra-high power radio frequency chip in the cascade chip structure. According to the invention, ultra-wideband high-power radio-frequency signal and high-airtightness transmission can be realized, single-channel output power of tens of thousands of watts can be provided, and the ultra-wideband high-power radio-frequency power divider is suitable for application scenes such as portable unmanned aerial vehicle countering or high-maneuverability unmanned aerial vehicle countering.

The invention provides a magnetic shielding layer which is arranged at a first relative position of a target object and surrounds the target object so as to reduce interference of a magnetic field of a target environment where the target object is located on the target object. The magnetic shielding layer comprises a plurality of local magnetic shielding areas, and each local magnetic shielding area is provided with a corresponding local magnetic shielding structure; wherein the structure parameters of the at least two local magnetic shielding structures are different, and the structure parameters comprise at least one of the number of layers of the shielding structures, the shielding material of each layer of the magnetic shielding structure and the material thickness of each layer of the shielding structure.