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Matches 1,101 - 1,150 out of 2,723

Document Document Title
JPWO2005055366A1
In order to provide a compact and lightweight in-vehicle radar that has excellent detection performance by preventing load clutter and can be mounted anywhere, it is equipped with at least one radiating element that emits linearly polari...  
JP3938211B2
It is difficult to check the suitability of a radio anechoic room as a measuring environment, even when countermeasures for preventing reflection of electromagnetic waves and blocking electromagnetic waves are taken against the radio ane...  
JP3935190B2
To attain both improvement in antenna radiation efficiency and its miniaturization. A magnetic mamber is interposed between an antenna element and a printed wiring board, and an air layer or a dielectric layer is interposed between the a...  
JP3929092B2
To prevent malfunction due to radiated noise in a device and prevent leakage of elector-magnetic waves to the outside, by constituting at least a part of a case and a screen frame using a composite magnetic material comprising soft magne...  
JP3927689B2
To enable restraining enlargement of radiating fins when power of a microwave communication apparatus is increased, and excluding use of expensive components when the apparatus is constituted. A microwave communication apparatus is provi...  
JP3925835B2
To provide an electromagnetic-wave absorber whose electromagnetic- wave absorption characteristic in a high frequency region at 1 GHz or more is superior, to provide its manufacturing method and to provide various applications using it. ...  
JP2007134869A
To provide an antenna housing box capable of shielding leakage of an electromagnetic wave emitted from an antenna.The antenna housing box 10 for housing and arranging the antenna 30 to which a mobile phone located in an electromagnetic w...  
JP3922039B2
To provide an electromagnetic wave absorption material having superior electromagnetic wave absorption characteristics which can be easily manufactured and used in regions from submillimeter to millimeter waves, and to provide various us...  
JP3923460B2
To suppress the radiation of leakage radio waves in an antenna device used to a radar or radio communication by solving the problem that a conventional antenna device is disabled to sufficiently suppress leakage radio waves that are radi...  
JP2007513515A
A single substrate hydrogen and microwave absorber (20) attenuates spurious microwave signals in a metal Integrated Microwave Assembly (10, 10') and reduces hydrogen poisoning of hydrogen sensitive components implemented in the Integrate...  
JP3919100B2
To provide a mobile communication terminal which makes a non-contact coil antenna improved in communication performance small in size and thin in thickness compatibly as a whole. The mobile communication terminal 1 such as a mobile phone...  
JP2007124050A
To improve characteristics of various electronic apparatuses by using a fractal structure.The fractal structure 22 for collecting radio waves is fitted to a tip of an antenna 21 of a mobile phone 20. When the intensity of the radio wave ...  
JP2007115854A
To provide an electromagnetic wave absorber useful for GHz band consisting of a compound body of low manufacturing cost and high excipient property, which uses the loss material of large electromagnetic wave absorption and is added by a ...  
JP2007115768A
To provide a radio wave absorption and acoustic absorption panel which can achieve a balance between acoustic absorption performance and radio wave absorption performance with both performances kept high, is made thinner in the overall t...  
JP2007509591A
Method for fabricating a textured dielectric substrate ( 400 ) for an RF circuit. The method can include the step ( 104 ) of selecting a plurality of dielectric substrate materials, each having a distinct combination or set of electrical...  
JP2007088316A
To provide highly insulative magnetic powder suitable for an electric wave absorber for which a soft magnetic ferroalloy is used.The magnetic powder is composed of complex grains made by bonding ferrite grains 2 having an average grain d...  
JP3894688B2
To provide communication equipment improved in the quality of communication which is for executing power supply to a communication party and communication with the communication party by electromagnetic induction in a non-contact state. ...  
JP2007074662A
To provide a millimeter wave radar system which improves detection precision, is made thin and lightweight and improves weather resistance not only by cutting off unwanted radio waves transmitted/received toward an antenna but also by sh...  
JP2007073045A
To provide an IC module built-in seal capable of adding a function of a non-contact IC module newly added to an object which is not equipped with the function of the non-contact IC module.The IC module built-in seal is provided with at l...  
JP2007073773A
To provide a low-cost and high-performance light transmissive wave absorber which exhibits a high radio shielding property, high transparency and visibility, high air permeability, and the like, and can be used as a wave shield wall betw...  
JP2007067363A
To provide a composition that has superior compatibility of a binder component with an expanded graphite powder and is suitable for the application of radio wave absorption sheet, a radio absorption sheet that is of large electric wave i...  
JP2007067766A
To provide a wave absorber by which identification wave of a vehicle passing through one lane is prevented from reaching an ETC system of another lane when lanes for ETC systems, provided for toll booths of a tollway are adjacent to each...  
JP3892154B2
To provide a plane antenna device more hardly being affected by multipath by sufficiently suppressing sensitivity to incident waves from the rear face side of a ground plane. A ground plane 5 is provided around the plane antenna 10 and a...  
JP2007057483A
To provide a millimeter wave radar device that reduces side lobe transmitted from an antenna, prevents occurrence of load clutter, efficiently transmits only electric wave to be used as main lobe to an object, and accurately detects rela...  
JP2007036081A
To provide a microwave-absorbing film structure absorbing electromagnetic waves by an offset and the film structure by the offset characteristics of the phase of waves, and a manufacturing method for the microwave-absorbing film structur...  
JP2007036154A
To provide an electromagnetic wave absorber useful as an object for GHz bands which exerts electromagnetic wave absorbability without damaging characteristics of a matrix, has high excipient characteristics and comprises a compound mater...  
JP3877196B2
To provide an antenna which is attached onto a wall surface, a window, etc., of a building, a vehicle, etc., and has a function to shield or enhance an electromagnetic wave of a specific frequency regardless of the polarized surface of t...  
JP2007027668A
To provide a radio wave shield using a foamed product obtained by adding conductive particles such as carbon powder and metallic power to an inorganic filler to be a main component as a base material, excellent in non-combustibility, non...  
JP2007020091A
To provide a converter for receiving a plurality of satellites being capable of receiving even a signal from another satellite having a different receiving polarized-wave angle when mutual spaces among the satellites are reduced comparat...  
JP2007019287A
To provide a lightweight dielectric loss material exhibiting an excellent electromagnetic wave absorption characteristic having a wide absorption frequency band in a high frequency band, and an electromagnetic wave absorber using it.This...  
JP2007012775A
To provide an electromagnetic wave absorber where a material which contains aggregate using slag in which steel manufacturing dust is redissolved as a raw material is used, and an S21 parameter value becomes -4 to -20 dB at a frequency b...  
JP3869985B2
To develop an absorber capable of enhancing uniformity of adherence of carbon and upgrading radio wave absorbing characteristics by utilizing a silica alumina fiber and a method for manufacturing it. The method for manufacturing a radio ...  
JP3869147B2
To provide an electromagnetic wave absorbing sheet at a low cost with excellent electromagnetic wave absorbing capability of 10 dB (70% attenuation) or over at a frequency band including frequencies of mainly 3 GHz (desirably 1 GHz) or o...  
JP2006351693A
To provide an electromagnetic wave absorption plate and an electromagnetic wave absorber capable of reducing a manufacturing cost and also an installation cost, and effectively utilizing waste ferrite materials and waste synthetic resin ...  
JP3301750B6  
JP2006339592A
To provide a low-cost electromagnetic wave absorbing building material in which electromagnetic wave absorbing performance for preventing communication failure is exhibited in a plurality of specified frequency bands by using an existing...  
JP3852619B2
An electromagnetic wave absorption panel (100) for use in building construction includes an absorber layer (106) that utilizes novel materials such as layered superlattice materials, garnets, magnetoresistive materials, conducting oxides...  
JP3849786B2
To provide an electromagnetic wave absorber having excellent electromagnetic wave absorption characteristics. The electromagnetic wave absorber comprises boron carbide powder whose conductivity is not less than 5×10-6(S/cm). The electro...  
JP2006310353A
To provide a durable radio wave absorber where the surface resistivity of a resistive film is nearly fixed for a long term, and initially satisfactory radio wave absorption performance can be maintained for a long term.In the radio wave ...  
JP3844317B2
To realize improvement in the magnetic efficiency, by joining a pair of half split cores made of soft magnetic powder and a specified organic binder, and causing the joined pair of cores to surround the outer peripheral portion of a cabl...  
JP2006303555A
To provide a radio wave absorber which can be fixed to a concrete wall face in order to absorb unnecessary radio waves generated around an electronic toll collection system (ETC) on a highway with high attenuation even at a narrow incide...  
JP3839971B2
To prevent mechanical properties from being thermally affected greatly and to improve heat resistance, aging resistance, and oil resistance properties by including a soft magnetic material powder and a bonding agent and further including...  
JP2006270350A
To enable a reader to accurately specify the target ID transmitted from an ID transmission means provided to an inspection target.The shield device is provided with a shield material 5a and a device ID transmission means 6 formed to the ...  
JP2006257762A
To provide a radio wave and sound absorbing panel with high performance by making compatible sound absorbing performance with radio wave absorbing performance.This radio wave and sound absorbing panel is formed in a laminated structure c...  
JP2006522511A
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...  
JP3823942B2
To obtain a compact antenna assembly which prevents reflection from the end of a helical antenna element to provide a desired radiation pattern. The antenna assembly comprises a helical antenna for radiating circularly polarized radio wa...  
JP3823293B2
To provide a broadband antenna, having a tapered slot antenna structure capable of easily changing the polarized wave faces and making the body small, when it is formed in an array form. Each tapered part 6 of a plurality of tapered slot...  
JP2006245472A
To provide an electromagnetic wave absorber which is excellent in an electromagnetic absorption property, is light in weight, and is good in productivity.The electromagnetic wave absorber contains a boron solid-solution carbon black and ...  
JP2006245166A
To provide a radio wave absorber used for shielding or absorbing electromagnetic waves, especially at a frequency band of around 5.8 GHz.Flat magnetic metal powder of 70-100 pts.wt. is blended with respect to resin binder of 100 pts.wt. ...  
JP2006233457A
To provide a radio shielding body which can selectively shield two kinds of radio waves with different frequencies by a high shield factor.A plurality of first antennas 4 for each reflecting the radio wave with first frequencies, and a p...  

Matches 1,101 - 1,150 out of 2,723