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Patent Searching and Data


Matches 451 - 500 out of 3,120

Document Document Title
WO/1993/024307A1
A method for making a material with an artificial dielectric constant is carried out by choosing the desired dielectric constant for a particular electromagnetic field, selecting a substantially non-electrically conductive sheet material...  
WO/1993/023892A1
Device for the reduction of the electromagnetic energy reflected by any given structure, at the lowest radar frequencies, consisting of relatively thin panels, spaced regularly and symmetrically (Figure 1) on the structure to be protecte...  
WO/1993/023222A1
A fabric having both a high degree of user comfort and a high degree of Ultraviolet Radiation protection is provided. The preferred yarn is at least 40 Denier by 40 Denier, preferably 70 Denier by 2 \ 70 Denier Nylon Yarn. The yarn is wo...  
WO/1993/023893A1
An electromagnetic energy absorbing structure (20) provides a base structure (22) having an electrically conductive ground plane (38) positioned thereover. At least one dielectric (36) and one impedance layer (32) are positioned over the...  
WO/1993/015530A1
Absorbers of electromagnetic waves in closed and shielded rooms consist of three-dimensional bodies made of foam material impregnated with finely dispersed conductive materials and arranged close to each other on the wall of the room to ...  
WO/1993/009944A1
A coating (14) comprising an inert base material (15) having dispersed therein particles of metals (16) capable of reflecting or absorbing electromagnetic radiation. The coating process may be applied to lightweight gray goods (12) which...  
WO/1993/008586A1
Described is a microwave-absorbing component comprising a substrate made of electrically insulating material and, applied on the substrate, a film 5 to 50 nm thick, the surface profile of the film being selected to give the required radi...  
WO/1993/005960A1
Weather-resistant electromagnetic radiation shielding materials and structures for electromagnetic interference attenuation for electronic equipment situated in unshielded outdoor housings are described.  
WO/1993/000786A1
Method for fabricating a screen absorbing electromagnetic radiation, comprised of a planar, carbon filled, honeycomb type structure, having an impedance gradient varying as a function of the thickness according to any predetermined law, ...  
WO/1992/022193A1
A carbon fiber containing composite material whose carbon fibers are aligned in one direction is so disposed that the alignment direction is the same as that of the electric fields of electromagnetic waves W to be absorbed.  
WO/1992/016033A1
The component disclosed consists of an electrically non-conducting solid, such as lime sandstone, gypsum or a ceramic-type preparation, in which particles of a material which particles of a material which is electrically conducting in th...  
WO/1992/015995A1
A new category of ferromagnetic materials consists of two phases, namely a hard magnetic phase and a soft magnetic phase, which are structured by interchange coupling of the spins of the two phases. Preferably the weak magnetic phase is ...  
WO/1992/002973A1
The invention relates to a building component (1) adapted for absorbing incident electromagnetic energy in the radar range of frequencies particularly between 1 and 1.1 GHz, comprising a substrate in the form of a receptacle or tray (2) ...  
WO/1991/020179A1
A body for absorbing electromagnetic waves having a good absorption characteristic in a wide frequency band. This body is provided with a ferritic tile body (12) for absorbing electromagnetic waves and a dielectric body for absorbing rad...  
WO/1991/012173A1
A composite structure (64) is disclosed for placement on an air, land or sea vehicle to attenuate electromagnetic waves and to break up ice accumulation which might occur under adverse weather conditions. The upper section (22) of the st...  
WO/1991/008576A1
The composition of the invention contains finely divided particles, with a diameter not exceeding 1 $g(m)m, together with a ceramic powder designed to form a matrix surrounding the finely divided particles, dispersed in a dispersion medi...  
WO/1991/006988A1
The receiving antenna comprises at least two sectors or areas (1, 2) of paraboloids which focus the radiation on their axes (xx') at points F1 and F2 respectively which are offset by an integer of wavelengths of the received radiation. E...  
WO/1991/005979A1
Self-protonated sulfonic acid substituted polyaniline compositions, processes for their preparation and uses thereof. The sulfonated polyaniline compositions are useful for conduction of electricity, absorption of electromagnetic radiati...  
WO/1991/005376A1
The disclosure relates to a bulk RF absorber (100) and a method for constructing the same. The absorber is composed of multiple sheets of a reticulated dielectric material (102), each sheet being coated with at least one layer of radiati...  
WO/1990/013155A1
In the manufacture of PVC cellular plastic, a liquid plastic mixture is admixed with fibres in an amount of at most 1 percent by weight fibres, preferably carbon fibres having a length of about 1 cm, which fibres are distributed in the e...  
WO/1990/010959A1
An antenna (5) having driven colinear dipole array (18) and passive slot array (14). Dipole array (18) comprises active elements (34) and phasing bars (36). Slot array (14) comprises two passive elements (35) having slots (28, 30, 32). A...  
WO/1990/004210A1
Materials which reflect diminishingly small electromagnetic energy are disclosed. In accordance with preferred embodiments, composite materials are made by embedding chiral structures in a host medium. The composites so obtained have low...  
WO/1990/000342A1
The first invention provides an electromagnetic wave absorber comprising: a current conversion element of the form of a flat plate arranged in a direction at right angles with the electric field of electromagnetic waves to convert incide...  
WO/1989/006338A1
A means of reflecting and emitting electromagnetic energy in an appropriate wavelength band comprising an arrangement (10) of surfaces (11) which are reflective to energy in that wavelength band and energy emitters (12) having an emissio...  
WO/1989/000754A1
In a process for manufacturing a material having predetermined dielectric, pyroelectric and/or magnetic properties use is made of the fact that the electrical properties of mesoscopic particles (approximately 1 nm to 100 nm), for example...  
WO/1988/001363A1
Web material for camouflaging against electromagnetic radiation whereby the material (1) comprises several layers (4, 5, 6) against the electromagnetic radiation which is directed against the material, whereby the material is provided wi...  
WO/1987/005705A1
A null processing receiver apparatus that receives and combines together a number of modulated information signals in such a fashion that an interference or jamming signal superimposed on each received signal is substantially eliminated ...  
WO/1986/006550A1
In the preferred embodiment the compact antenna range (10) includes two shaped reflectors, a subreflector (14) and a main reflector (16) arranged in an offset configuration. Each reflector is shaped so that the reflected wave front from ...  
WO/1985/004527A1
A conical horn microwave antenna has a reflector (15) positioned at the large end of a conical feed horn (17) which has the side walls (26) of the horn (17) wider than the projected effective area of the reflector (15) such that microwav...  
WO/1985/002265A1
Low density compositions containing colloidal-size particulates of an ELM absorber such as Fe3O4 and a particulate of an ELM attenuator such as carbonyl iron dispersed in a dielectric matrix such as a styrene/butyl acrylate copolymer pro...  
WO/1982/004357A1
A feed horn for a reflector-type microwave antenna comprises a smooth-walled conical horn (10) and a lining of absorber material (22) on the inside wall of the horn for reducing the width of the RPE (radiation pattern envelope) in the E ...  
JP2020038544A
[Subject] Art which controls an installation area of a wave absorber is provided, without reducing a function of a wave absorber used for a gate system for communication. [Means for Solution] Countering arrangement is carried out across ...  
JPWO2018203462A1
Directivity provides a good wearable antenna system, stopping thickness small. The antenna section (2) by which the wearable antenna system is attached to some clothes (1) which have a body seat part (1a) which stores a part of body (4),...  
JP2020030164A
[Subject] On the occasion of system performance testing under the OTA environment for [ which uses a radio signal of a millimeter wave belt / examining ], generating of a standing wave resulting from an electric wave emitted from an ante...  
JP2020022141A
[Subject] A measuring method is provided in a measuring device and the end of the non-end of line in the end provided with a flat antenna device which can control an amplitude error resulting from multiple reflection which occurs between...  
JP2020009829A
[Subject] Electric wave absorption structure which has an electric wave absorption feature efficient about a plurality of frequency, and can be manufactured to a thin shape comparatively simply is provided. [Means for Solution] Resonance...  
JP2020009923A
[Subject] The electromagnetic waves spread to a determined direction are penetrated, and the electromagnetic wave control object which can control the propagation direction of electromagnetic waves, and the radar system provided with thi...  
JP2020010240A
[Subject] An unnecessary electric wave is controlled in a flat antenna device. [Means for Solution] A micro strip antenna is constituted by antenna pattern 100 and grand pattern 110 which were formed in patterned layers L1 and L2 of prin...  
JP2020004940A
[Subject] An electromagnetic-wave-absorption composite sheet which has high absorption power to an electromagnetic wave noise of a desired frequency region is provided. [Means for Solution] An electromagnetic wave shield film is laminate...  
JP6623805B2  
JP6613293B2  
JP6597484B2  
JP6589103B2  
JP2019176161A
To materialize an electromagnetic wave-absorbing sheet which can absorb an electromagnetic wave of a milli-meter wave band or higher frequencies well, which is superior in flexibility and which can be readily disposed in a desired portio...  
JP2019528640A
An antenna is provided and the antenna includes the radiant surface assembly which extends over the 1st page, the patternizing ferrite layer which extends over the 2nd page, and the band stop frequency-selective side (FSS) which extends ...  
JP2019161629A
To accurately position a primary radiator at the focal point and in the correct posture as an extremely simple structure.An aperture antenna includes a primary radiator 3, a flexible reflector 1 having a reflective surface 13 made of met...  
JP2019161628A
To make the radio wave reflecting surface into a normal shape with an extremely simple structure.An antenna with a reflector includes a primary radiator 3, a flexible reflector 1 having a reflective surface 13 made of metal that reflects...  
JP2019158491A
To provide a real-time sending-receiving device for sending or receiving an electromagnetic wave with a frequency of at least a millimeter wave band in real time, the sending-receiving device allowing generation of noise caused by a dire...  
JP2019161209A
To provide an electromagnetic wave shielding/absorbing molding superior in the ability to shield/absorb electromagnetic waves of a particular frequency.An electromagnetic wave shielding/absorbing molding comprises a thermoplastic resin c...  
JP2019161210A
To provide an electromagnetic wave shielding/absorbing molding superior in the ability to shield electromagnetic waves of a particular frequency.An electromagnetic wave shielding/absorbing molding 10 comprises a thermoplastic resin compo...  

Matches 451 - 500 out of 3,120