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8184035 |
Insulated ultrafine powder and high dielectric constant resin composite material
The present invention provides an insulated ultrafine powder containing electrically conductive ultrafine particles coated with an insulation coating, characterized in that the electrically...
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8179298 |
Multi-directional resonant-type electromagnetic wave absorber, method for adjusting electromagnetic wave absorption performance using the same and manufacturing method of the same
A multi-directional resonant-type electromagnetic wave absorber includes: at least one ground layer; a first dielectric layer and a second dielectric layer respectively formed on different outer...
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8164506 |
Electromagnetic absorber using resistive material
An electromagnetic absorber using resistive material includes a ground plane of a conductive material; a dielectric layer formed on the ground plane; and a pattern layer in which specific unit cell...
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8164505 |
Structure for reducing scattering of electromagnetic waves
A structure made of in certain frequency bands invisible material includes a transmission line network. The structure has a matching layer at the boundary of the material, supporting structures...
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8149153 |
Instrumentation structure with reduced electromagnetic radiation reflectivity or interference characteristics
An instrumentation structure includes a sensor array and a support structure. The sensor array is rotatable around multiple axes. Radar absorbent material (RAM) is adapted to conform to non-planar...
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8138959 |
Radio wave absorption material and radio wave absorber
A radio wave absorption material is characterized to be obtained by firing a ferrite material that is formed by adding an accessory component, 0.1 to 2 wt % of CoO, to an oxide magnetic material...
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8106810 |
Millimeter wave filters
An electromagnetic radiation filter uses a plurality of dipole antennas to mitigate the transmission of electromagnetic radiation. The dipole antennas can form one or more arrays that scatter...
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8072366 |
Radio wave absorber, electromagnetic field measurement system and radiated immunity system
A radio wave absorber for use in an electromagnetic field probe that measures an electromagnetic field by means of an antenna section provided therewith, the radio wave absorber including: a first...
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8072365 |
Magnetic crystal for electromagnetic wave absorbing material and electromagnetic wave absorber
Disclosed is a magnetic crystal for electromagnetic wave absorbing materials, having a structure of ε-MxFe2-xO3 with 0
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8063812 |
Radio wave absorber, electromagnetic field measurement system and radiated immunity system
A radio wave absorber for use in an electromagnetic field probe that measures an electromagnetic field by means of an antenna section provided therewith, the radio wave absorber including: a first...
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8031104 |
Microwave absorber, especially for high temperature applications
A microwave absorber, especially for high temperature applications, has at least one resistive sheet and at least one dielectric layer. The resistive sheet has a material of construction that is a...
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8017217 |
Variable emissivity material
A material of variable emissivity includes a first metallic layer having a first aperture, a second metallic layer having a second aperture, and a variable dielectric layer interposed between the...
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8013775 |
Radio frequency absorber
An exemplary embodiment of the present invention comprises a radio frequency absorber that is operative for absorbing electromagnetic energy, scattering electromagnetic signals, and/or attenuating...
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8013777 |
Electromagnetic wave absorber using resistive material
An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed...
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8013776 |
Radar camouflage fabric
A radar camouflage fabric comprising a base fabric layer and a conductive garnish fabric layer attached to the base fabric layer. The conductive garnish fabric layer comprises a conductive polymer...
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7999720 |
Camouflage positional elements
One aspect relates to camouflaging an object by affecting a presentation at least partially using at least one positional element based at least in part on a position of the at least one positional...
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7973696 |
Thin film emitter-absorber apparatus and methods
Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes...
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7965219 |
Patterned optical material and metamaterial for protection from and defeat of directed energy
A structure is described that includes a plurality of columnar pieces of metamaterial, and a plurality of columnar pieces of non-metamaterial. The columnar pieces are arranged in an alternating...
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7956793 |
Selective reflective and absorptive surfaces and methods for resonantly coupling incident radiation
Methods and apparatus for providing a tunable absorption band in a wavelength selective surface are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an...
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7948424 |
Radio wave absorber and producing method thereof
In order to provide a radio wave absorber that can be produced easily and has excellent radio wave absorption characteristics, a conductive surface 2 of a conductive paint 6 is formed on one...
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7940204 |
Absorber assembly for an anechoic chamber
An electromagnetic absorber assembly capable of minimizing reflectivity caused by reflected and diffracted waves within a test chamber is presented. The absorber assembly includes a plurality of...
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7940203 |
Electromagnetic wave absorption board to be used in wireless LAN
In a double glazing where a pair of transparent glass sheets are arranged at an interval by having a spacer at the circumferential end portion and where a hollow layer sealed between the pair of...
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7897882 |
Electromagnetic interference and radio frequency absorbing material and process for forming the same
An EMI/RF absorbing film may comprise a polymer resin, and metallic flakes dispersed in the resin. A method for manufacturing an EMI/RF absorbing material. The method may include dispersing...
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7893390 |
Guided missile
A guided missile has a sensor unit, a propulsion unit, and a payload unit. A missile casing forms the outer contour, extends along a longitudinal direction, and accommodates the sensor unit, the...
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7864095 |
Wave absorber and manufacturing method of wave absorber
The problem of the present invention is to offer a wave absorber that has reflection attenuation capability sufficient to enable prevention of communication disturbances due to reflection and the...
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7834799 |
System and method for fabricating composite laminate structures with co-laminated radar absorbing material
Various embodiments provide systems and methods for fabricating composite laminate structures with co-laminated radar absorbing material. An example embodiment includes providing a component part...
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7830296 |
Anechoic structures for absorbing electromagnetic interference in a communications module
A communications module includes an interior configuration designed to intercept, disrupt, and scatter EMI produced by the module during operation. The interior configuration may include an...
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7804439 |
Electromagnetic wave absorber
A thin, light and soft electromagnetic wave absorber is disclosed exhibiting an excellent workability. The first conductor element group of a first conductor element layer consists of aligned cross...
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7804446 |
Antenna for a fill level radar for applications involving high temperatures and/or high pressures
An antenna for a fill level radar includes a high-temperature process separation device and an attenuation element. The attenuation element is used to improve the measuring signal in the near zone...
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7777664 |
Wave absorber
A wave absorber of the present invention includes a sequentially laminated structure including an conductor layer (11) made of a conductive material; a first dielectric layer (polycarbonate...
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7695803 |
Sheet material for radio wave absorber and radio wave absorber
A sheet material for a radio wave absorber and a radio wave absorber formed from the sheet material, where the sheet material is light weighted and has excellent form-retaining capability and...
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7688246 |
Radio wave absorber, electromagnetic field measurement system and radiated immunity system
A radio wave absorber for use in an electromagnetic field probe that measures an electromagnetic field by means of an antenna section provided therewith, the radio wave absorber including: a first...
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7642948 |
Reflective layer
A reflective layer for attenuating electromagnetic radiation, the layer comprising at least one reflective component, the latter being selected from the group containing the following substances:...
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7633424 |
Wide temperature range dielectric absorber
According to one exemplary embodiment, a wide temperature range dielectric absorber includes a dielectric absorber comprising a blend of lanthanum oxide, strontium oxide, and cobalt oxide, and is...
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7623058 |
Electromagnetic wave absorbing plate
An electromagnetic wave absorbing plate composed of a transparent plate-like dielectric, wherein a thickness of the dielectric is determined such that an electromagnetic wave absorption quantity...
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7619575 |
Metallically gross layer decorative molded article for use in the beam path of a radar device
A metallically gross layer decorative molded article for use in the beam path of a radar device has a luxurious metallic design similar to the color tone of a chrome plating and the like that does...
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7589661 |
Radio wave absorber
A radio wave absorber that can be bonded securely to a flexible cable or a flexible printed circuit board eliminates the need for a release film. A radio wave absorber comprising a thermosetting...
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7551117 |
All-weather radio wave absorber having reflector and object into which such absorber is integrated
The present invention provides an all-weather radio wave absorber having reflector capable of smoothly attenuating harmful microwave or millimeter wave from 400 MHz to 100 GHz generated from...
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7532155 |
Radar level gauging system
A radar level gauging system comprising a microwave unit for transmitting and receiving first microwaves having a first and second distinguishable characteristics, a microwave absorber adapted to...
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7511653 |
Radar wave camouflage structure and method for fabricating the same
A radar wave camouflage structure is disclosed. The radar wave camouflage structure comprises a substrate; a first layer on the substrate, comprising a first polymer matrix; magnetic nanoparticles...
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7508353 |
Exterior component disposed on front surface of radar device of vehicle
An exterior vehicle component includes a proximity member disposed along an outer perimeter of an electromagnetic wave transmission member provided at a center of the component which is disposed in...
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7479917 |
Electromagnetic wave absorber, manufacturing method thereof and electromagnetic wave anechoic room
An electromagnetic wave absorber has a configuration in which at least three hollow tetrahedrons, each having one open face, are connected to one another so that each surface opposite to a...
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7471233 |
Electromagnetic wave absorber
An electromagnetic wave absorber includes a first electromagnetic wave absorbent member containing a magnetic loss material, and a second electromagnetic wave absorbent member containing a...
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7466142 |
Anechoic chamber for direct observation of the electromagnetic behavior of a tool
An apparatus for studying the electromagnetic behavior of an electromagnetic wave-emitting or electromagnetic wave-receiving tool is provided. An anechoic chamber is configured to receive the tool...
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7427949 |
System and method of using absorber-walls for mutual coupling reduction between microstrip antennas or brick wall antennas
A multi-element antenna with sufficiently small return loss and mutual coupling signals to allow the simultaneous transmission of powerful radar signals and the reception of faint target return...
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7420500 |
Electromagnetic radiation absorber
An electromagnetic radiation absorber for absorbing radiation in the wavelength range λmin to λmax. The absorber has a conductor layer in contact with a dielectric layer. The conductor layer c...
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7408500 |
Automotive radar
An automotive radar having a high level of azimuth accuracy and a broad detectable range by virtue of preventing leaks of unnecessary waves to receiving antennas is to be provided. A transmitting...
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7403152 |
Method and arrangement for reducing the radar cross section of integrated antennas
An antenna structure including an antenna 10 with an outer main surface 11, where said antenna 10 is integrated in a surface of a surrounding material 20. Further comprising a transition zone 30...
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7397414 |
Electromagnetic wave absorption complex, and method of producing the same
An electromagnetic wave absorber is formed by injection-molding a thermoplastic resin blended with approximately 20-60% by volume of soft magnetic material powder, and blended with a molding...
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7345616 |
Method and apparatus for reducing the infrared and radar signature of a vehicle
A radar-absorbing panel (9) includes a honeycomb core (11) and a lower skin (13), where the lower skin (13) is attached to the bottom of the honeycomb core (11). The honeycomb core (11) is made up...
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