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WO/2005/015688A1 |
The invention relates to elastic antiradar materials excluding or substentially reducing the probability of detection and/or classification of objects by fixed and mobile radar stations operating within a frequency range of 8-13 GHz. The...
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WO/2005/014475A2 |
Disclosed herein is a material for altering electromagnetic radiation incident on the material. The material disclosed herein comprises carbon nanotubes having a length (L) that meets the following formula (I): L ≥ 1/2 &lgr (I), where ...
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WO/2005/013663A2 |
An electromagnetic radiation absorberfor absorbing radiation in the wavelength range &lgr min to &lgr max The absorber has a conductor layer in contact with a dielectric layer. The conductor layer carries a plurality of apertures of sub-...
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WO/2005/013417A1 |
The invention relates to a compact, broadband direction-finding antenna system, consisting of several partial antenna systems (2, 3, 4, 5) that operate in different frequency ranges. Said partial antenna systems are located one above the...
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WO/2005/006491A1 |
To provide a loop antenna capable of attenuating the distant electric field with the attenuation of the magnetic flux in the vicinity of an electromagnetic wave restrained, and a contactless IC card read/write apparatus. A loop antenna 1...
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WO/2004/097986A1 |
The invention relates to a compound for the selective absorption of an electromagnetic field having a given frequency, characterized in that it comprises a spatially charged dielectric material (10) having a dielectric susceptibility e w...
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WO/2004/095634A2 |
The invention relates to a fixture (7) for fastening a mobile radio terminal (5) inside a vehicle. Said fixture (7) comprises a housing (71) that encompasses a first housing part which is shaped so as to accommodate a mobile radio termin...
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WO/2004/093244A2 |
A reconfigurable frequency selective surface (FSS) includes a plurality of conducting patches (12) supported on the surface of a dielectric layer (16), with selectable electrical interconnections (14) between the conducting patches (12) ...
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WO/2004/089256A1 |
The invention relates to an anchor piece for fixing an intervertebral implant (15) to the end plate of a vertebral body (19;20), comprising A) an anchor piece (1), with a central axis (6) and two end faces (4, 5) transverse to the centra...
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WO/2004/091049A1 |
In mobile communication terminals, there may be problems such as damage to humans by microwave leakage and the generation of microwave disturbance by radiation noise. Disclosed herein is a conductive thin film type microwave absorber wit...
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WO/2004/088789A1 |
The invention relates to a device shielding especially an electronic unit with a transmitter, such as a mobile phone, against electromagnetic radiation. The device includes a crystal and an winding/spiral, where the winding/spiral is wou...
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WO/2004/079862A1 |
One embodiment of the invention provides an electromagnetic wave absorbent panel comprising an electromagnetic wave attenuating layer. The attenuating layer comprises a plurality of electrically resistive fibres carried by a dielectric m...
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WO/2004/060037A1 |
A sheet material for a radio wave-absorbing body and a radio wave-absorbing body formed from the sheet material, where the sheet material is light weighted and has excellent form-retaining capability and workability for field assembling....
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WO/2004/044070A1 |
The invention relates to the production of compositions for coatings provided with specific properties, in particular for screening against electromagnetic radiation. Said invention can be used for various industries and domestic life, i...
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WO/2004/042427A1 |
An antenna system for ground penetrating radar, comprising at least two orthogonally mounted transmitter antenna elements (1, 2) and at least two orthogonally mounted receiver antenna elements (3, 4), in which the antenna elements consis...
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WO/2004/038860A1 |
An unbalanced antenna in which a radiation conductor and a grounding conductor are spaced at an arbitrary interval. At least a part facing the radiation conductor of the ground conductor is left to maintain the action as a minus electrod...
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WO/2004/038863A1 |
A method and an antenna arrangement are disclosed for reducing the antenna radar cross section for an externally illuminating radar source. A radar pulse is transmitted with the antenna arrangement fully matched to achieve lowest possibl...
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WO/2004/025043A1 |
The invention relates to a building, or a room in a building, in which at least one boundary surface of the building or room, such as for example a wall, a panelling element, a element for closing a building or room opening, such as a wi...
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WO/2004/025783A1 |
This invention relates to periodic electromagnetic structures (20) for use over a relatively large range of frequencies. In particular, this invention relates to microwave applications, such as antennas and low reflectivity structures. A...
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WO/2004/021511A2 |
The present invention relates to a portable communication device, an antenna arrangement and a case for a portable communication device. The portable communication device comprises a casing including a first in-built driven antenna eleme...
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WO/2003/100364A2 |
A honeycomb structure (Fig. 4) mounted on a back panel (Fig. 5) especially on a vehicle, where the honeycomb structures are filled with an infrared absorbing material (Fig. 2) to reduce the radar and heat signature of a vehicle.
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WO2003038947A9 |
The present invention relates to planar materials having bandgap properties. The materials are formed by depositing conductive fractal patterns (Figs. 1A, 1B) on a non-conducting substrate. The bandgap locations(s) are defined by paramet...
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WO/2003/079492A2 |
The invention relates to a means of adapting the power emitted by a lens-type antenna (11), said means comprising a removable cover (12) with the same profile as that of the lens. The invention is particularly suitable for LMDS-type tran...
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WO/2003/075399A1 |
A mobile communication device incorporating an antenna, the device including a transmitter and a receiver adapted to transmit and receive signals via the antenna, the mobile communication device incorporating a load or shield adapted to ...
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WO/2003/072348A1 |
Carbon foams exhibiting a dielectric constant of from about 2 to about 6 and simultaneously an electrical resistivity in the range of between about 1.E+00 ohm-cm and about 1.E+06 ohm-cm, demonstrate excellent radar emission absorptivity ...
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WO/2003/064780A1 |
An electromagnetic−wave absorber which is reduced in the angle dependence of electromagnetic−wave absorption, has a wide electromagnetic−wave absorption angle, and is satisfactory in processability and applicability. It is characte...
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WO/2003/056894A1 |
Disclosed herein is a broad-band ferrite electromagnetic wave absorber which satisfies a need for broad-band electromagnetic wave absorption ability and can be more economically manufactured through an easy setting of manufacture conditi...
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WO/2003/032438A1 |
A microstructured material consists of an array of Swiss roll resonant elements having capacitance and inductance such that the structure exhibits a predetermined magnetic permeability at r.f. frequencies, wherein at least one of the elo...
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WO/2003/031722A1 |
A base material is admixed with an electromagnetic wave absorber of conductive fibers, e.g. carbon fibers, each having an overall length corresponding to the wavelength of an electromagnetic wave to be absorbed thus composing a paving ma...
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WO/2003/032439A1 |
A material produced by integrating an electromagnetic wave absorber around a granular material, a material produced by dispersing and integrating an electromagnetic wave absorber internally, and a material produced by admixing an electro...
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WO/2003/028911A1 |
A method for producing resin granules having a filler filled in polymer at a high density. A method for producing a resin molded product by using the produced resin granules densely filled with a filler. A filler having a flat shape is u...
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WO/2003/028424A1 |
The present invention concerns shielding of electromagnetic radiation from mobile phones or other handheld devices with transmitter/receiver. A special carbon fibre pad is used which is arranged in the mobile phone's casing.
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WO/2003/021610A1 |
A laminated soft magnetic member (5) which consists of a laminate formed by alternately stacking a soft magnetic layer (7) up to 1 μm in thickness and an insulation layer (6), and has a total thickness of up to 0.2 mm. Being excellent i...
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WO/2003/021055A1 |
The invention relates to a HF-reducing green roofing that consist of a support construction made of a textile fiber layer and/or a substrate (12), a vegetation layer (14) from lower plants, and a planar or spatial structure of electrocon...
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WO/2003/017423A1 |
A device substantially transparent to electromagnetic radiation of a certain frequency band is presented. The device comprises at least one dielectric structure of a predetermined thickness defined by the central frequency of the operati...
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WO/2003/004202A1 |
A method for making a radiation absorbing material (RAM) coating may include providing an iron-silicon alloy powder, forming the iron-silicon alloy powder into flakes, and passivating the flakes. The method may further include selecting ...
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WO/2003/005054A2 |
An edge concealment system (10) for abating electrical discontinuities between externally exposed edges (18 and 20) of adjacent surface pieces (22 and 24) separated by a gap (14). The system includes a cover component (12) shrouding each...
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WO/2002/091481A1 |
A method for absorbing electromagnetic wave using solar cells in which reflection of electromagnetic wave from the solar cell can be eliminated without impeding photovoltaic power generation. Upper electrodes (2, 2) of a plurality of sol...
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WO/2002/080201A1 |
A composite lossy material is provided, comprising: (i) a ferrimagnetic material FF or an alkyl or aryl ester of an inorganic acid, or both; and (ii) a ferromagnetic material, wherein the ferromagnetic material is a ferrite material or a...
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WO2002016257A9 |
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and usefu...
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WO/2002/056247A1 |
Disclosed herein is a contactless electronic card attachable to/ or interposed in a certain position of a portable item or portable terminal. The contactless electronic card includes a loop antenna for communicating with a card reader, a...
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WO/2002/052286A1 |
A matching network hybrid electro-magnetic compatibility (EMC) absorber. A substrate of any number of materials serves as the frame on which partial coatings are placed. Design parameters governing the substrate and other parameters gove...
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WO/2002/050946A1 |
The invention concerns a resonance coupling device for protecting a human or animal body, characterised in that it consists of a support designed to be placed preferably in contact with the body in operating condition, said support compr...
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WO/2002/049146A2 |
A radiation shield (36) includes a virtual magnetic wall (VMW), which is adapted to be placed between a radiating antenna (34) and an object (30) so as to reflect electromagnetic radiation emitted from the antenna in a given frequency ba...
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WO/2002/046285A1 |
The invention discloses an electromagnetic energy adaptation material, which can absorb electromagnetic energy, the material including a mixture of at least one liquid with at least one surfactant. The liquid may be a dipolar molecular l...
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WO/2002/047199A1 |
The present invention provides reduction of injury to human body by effectively reducing short-distance electromagnetic wave without any influence on long-distance electromagnetic wave which acts upon the telephone communication amongst ...
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WO/2002/043459A1 |
A radio-wave absorber having a high absorption power of high-frequency radio wave and a thin shape. The radio-wave absorber comprises at least one magnetic layer that contains a magnetic material having a fine structure and having a part...
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WO/2002/043460A1 |
A radio wave absorber which has a high absorbing performance for a high-frequency electromagnetic wave and is reduced in thickness, and which is constructed so that a conductor is fixed to a surface opposite to an electromagnetic-wave in...
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WO/2002/040799A1 |
A shielding material comprises at least one basic building material and at least one shielding component capable of reflecting or absorbing electromagnetic radiation. The shielding material optionally includes a hydraulically settable bi...
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WO/2002/025668A1 |
The invention relates to radio engineering, in particular to means for protecting against electromagnetic radiation and can be used for reducing a level of radiation injurious for health in radiotelephones, computers and other devices fo...
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