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8170824 |
System and method for determining distance with precision in the presence of multipath interference
Various aspects of the present invention are shown and described, each of which has stand alone utility in a navigated medical environment. A receiver position calibration system and method...
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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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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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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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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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7990307 |
Integrity monitor antenna systems for GPS-based precision landing system verification
The integrity of operation of a GPS precision aircraft approach and landing system may be compromised by error producing effects of reflected multipath signals. An integrity monitor antenna system...
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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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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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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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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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7746264 |
Low reflectance infrared camouflage system
An infrared camouflage coating system for application to the strategic surfaces of jet engine components comprised of a metal alloy substrate having an oxidized surface and a ferrous sulfide...
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7733263 |
Infrared camouflage coating system
A camouflage coating system for application to the surfaces of jet engine components in order to reduce their level of emitted energy there by rendering them undetectable by infrared detection...
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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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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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7564399 |
Shielded compartment for mounting a high frequency radar component on a printed circuit board
The shielded mounting module comprises a cover member and a box member . The box member includes a plurality of bosses formed in the bottom surface. Each of the bosses provide an electrical contact...
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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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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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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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7336215 |
Electromagnetic radiation absorber based on magnetic microwires
The invention relates to an electromagnetic radiation absorber for a preselected frequency range, comprising: an absorbent sheet (10) located such that said electromagnetic radiation falls on it,...
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7310059 |
Transparent pane with radar-reflecting properties
The panes (1) of a naval vessel or military vehicle are often coated with a radar-reflecting layer (20) for reduction of the radar signature of the vessel/vehicle. At the same time this layer...
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7301493 |
Meta-materials based upon surface coupling phenomena to achieve one-way mirror for various electro-magnetic signals
A one-way reflective sensor shield with an increased bandwidth meta-materials coating is provided which substantially reduces or eliminates deleterious electronic signatures and backscattering. The...
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7239261 |
Electromagnetic wave absorption material and an associated device
The purpose of the present invention is to provide an easy-to-manufacture electromagnetic wave absorption material usable from submillimeter wave region to millimeter wave region with an excellent...
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7218266 |
Electromagnetic wave absorber, method of manufacturing the same and appliance using the same
An electromagnetic wave absorber for use in the high frequency range above 1 Ghz and a composite member are characterized by the fact that magnetic metal grains are covered with ceramic above 20...
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7215275 |
Independent temperature and apparent color control technology for adaptive camouflage
An apparatus for adaptive camouflage with independent control of both temperature and apparent color. The apparatus has cells or individual pixels behind a transparent outer layer. The temperature...
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7212147 |
Method of agile reduction of radar cross section using electromagnetic channelization
A method for reducing radar cross section of an object that has conductive portions and that is expected to be scanned by radar, which includes providing the object with a multiple layer radar...
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7204057 |
HF-reducing green roofing
The invention describes a HF-reducing green roof. This green roof comprises a support construction consisting of a layer of textile fibers and/or a substrate (12), a vegetation layer (14) of low...
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7190301 |
Radio frequency anechoic chamber with nonperturbing wireless signalling means
An anechoic chamber (100) is provided with a system for introducing wireless communication signals into the anechoic chamber (100) for establishing wireless signaling with equipment under test...
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7136008 |
Low cost electromagnetic energy absorbers manufactured from conductive loaded resin-based materials
Electromagnetic energy absorbing devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive...
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7126525 |
Millimeter wave-radar and method for manufacturing the same
A millimeter-wave radar has a radome or radar cover including a layer, the dielectric constant of which is a greater than that of the other portion without the layer, or including a magnetic loss...
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