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JP2000315906A |
To provide an absorbing/losing/shielding body for an incoherent wave to exclude an electromagnetic wave that is harmful to human bodies and electric/ electronic circuits. The absorbing/losing/shielding body for an incoherent wave is form...
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JP2000311821A |
To obtain an electromagnetic wave attenuating sheet, which absorbs and attenuates electromagnetic waves generated from electromagnetic wave sources such as circuits in electronics and can be mounted, irrespective of the shape of circuits...
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JP2000307286A |
To reduce an irregularity in conductivity and obtain a stable value in a radio wave absorbing body by forming a carbon layer on the surface of a holder containing a substance having layer crystal structure by weight of a specified range....
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JP2000307336A |
To improve mutual radio wave interference between fixed stations without devising a radar itself by installing a disc on a radio wave propagation path while adhering a radio wave absorber having a diameter almost corresponding to that of...
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JP2000299590A |
To provide a radio wave absorbing material, exhibiting high heat resistance and flame resistance which is lightweight and can be easily processed and formed. A silica glass fiber cloth is manufactured by treating a commercially available...
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JP2000299591A |
To provide a radio wave absorbing material, exhibiting high heat resistance and flame resistance which is lightweight and can be easily processed and formed. A cloth is manufactured by weaving 1% of carbon fibers in weight into a commerc...
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JP2000514168A |
An article comprising a non-conductive substrate, preferably of an environmentally degradeable character, having a thickness of an oxidizable metal coating thereon, and optionally an oxidation enhancingly effective amount of a salt, e.g....
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JP3100896B2 |
A ballistic (radiator) grill for special-, e.g. armoured vehicles has parallel protective slats (22) in various profiles, which are novel in consisting of a kinetic energy absorbing core (14) partially or completely surrounded by an oute...
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JP2000292470A |
To accurately measure antenna's reception capability of various communication devices with simple measuring equipment for a reduced measurement cost, and to accurately measure the reception performance of an antenna itself separately fro...
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JP2000293655A |
To surely identify an article by suppressing the absorption of radio waves transmitted from a transmission coil for making an operating distance relatively long, and preventing the deterioration of the L values of reception and transmiss...
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JP3097343B2 |
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JP2000275289A |
To restrain the reduction of the ratio of signal to noise(S/N) due to the reflecting wave from the inner face of a vacuum vessel by covering the inner face of the vacuum vessel in which a microwave detecting element is arranged with a re...
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JP2000269734A |
To reduce multipaths in indoor radio communication by providing a radio wave reflecting suppressor at a reflective spot based on geometrical optics where a radio wave to be transmitted and received between a base station and a terminal s...
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JP2000261180A |
To improve absorbing efficiency of a radio wave without increasing the thickness in a radio wave absorber having stack structure provided with a matching layer for easily absorbing the radio wave from the outer air, an absorbing layer fo...
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JP2000261241A |
To realize low costs and high quality by forming one face of a spacer at a radio wave reflecting film, and the other face at a resistance film. A radio wave reflecting film 22 and a resistance film 23 are held in a prescribed distance wi...
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JP2000261182A |
To provide a light radio wave absorber which uses the equivalent resistance coat of a large area and whose manufacture cost can be suppressed to be low and to provide a radio wave absorbing wall using the radio wave absorber. In an equiv...
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JP2000261240A |
To obtain a radio wave absorber, which is thinner than a conventional pyramid type, for a relatively wide band where the frequency range is limited. With respect to the radio wave absorber consisting of absorbents 11 to 16 and a conducto...
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JP2000258526A |
To realize a shield fence having high radio wave shielding effect, a radar and a manufacturing method of radar by an arrangement wherein the upper end part of a shield fence is included in the valley of directivity. The shield fence disp...
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JP2000232320A |
To realize a reduction in the cost and to suppress radio wave reflection for a radio wave absorber as a whole by using a mesh planar material made of conductive fiber as a resistance film in a resistance film type wave absorber maintaini...
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JP2000228607A |
To obtain a large absorption characteristic in a broad frequency band and to prevent a malfunction due to an externally incoming electromagnetic wave and an unspecified electromagnetic wave in a wide range generated inside communication ...
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JP2000223937A |
To provide a radio wave absorbing panel structure for a glass curtain wall which can absorb a radio wave having a different angle of incident over the broad frequency bands of VHF and UHF. A ferrite absorber has 15 to 40 mm width A and 4...
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JP2000216622A |
To make this wall light in weight and also to obtain the maximum value of reflection loss in an optional UHF frequency band by providing a 1st dielectric layer a resistor layer and a 2nd dielectric layer and specifying the surface resist...
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JP2000211964A |
To provide a method for producing soft ferrite or a porcelain electromagnetic wave-absorbing material on which soft ferrite is supported by firing the metal oxide mixture for the soft ferrite or the molded product for the porcelain elect...
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JP2000209023A |
To make a frequency band wide and to improve radio wave absorption characteristics by arranging ferrite absorbers of specified width and thickness continuously in the magnetic field direction of coming radio waves and at a prescribed gap...
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JP2000201018A |
To easily obtain excellent reflection attenuating characteristics by continuously arranging magnetic materials, and making it unnecessary to provide any gap for which precision is required by arranging a second magnetic material having s...
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JP2000196282A |
To provide an electronic circuit device which reduces the mutual interference caused by the electromagnetic coupling between circuit blocks, without changing the dimension, the space, etc., to the electromagnetic shield mechanism to a co...
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JP2000196283A |
To make a reflection coefficient small at frequencies 100 MHz and 200 MHz and to widen a frequency range wherein the reflection coefficient becomes small. Magnetic bodies 2 constituted of a soft magnetic material are disposed discontinuo...
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JP2000508874A |
PCT No. PCT/DE98/00343 Sec. 371 Date Mar. 24, 1999 Sec. 102(e) Date Mar. 24, 1999 PCT Filed Feb. 6, 1998 PCT Pub. No. WO98/35403 PCT Pub. Date Aug. 13, 1998A microwave antenna arrangement, made up of a focusing element and at least one f...
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JP2000174546A |
To provide a device for preventing a radio wave from being reflected by a building without using such expensive means as affixing an expensive material such as ferrite onto nearly the entire radio wave incident face of a building and wit...
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JP2000174545A |
To provide a transparent radio wave absorbing sheet that can suppress the reflection of a radio wave, provide transparency, can be comparatively excellently handled and continuously manufactured.The transparent radio wave absorbing sheet...
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JP2000151171A |
To secure shielding as needed in the structure of an electromagnetic shield window provided in an electromagnetic shield room or the like. In a conductive frame body 21 provided around an aluminum sash 17, a conductive window cover 11b m...
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JP3044078B2 |
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JP2000138492A |
To exhibit electromagnetic wave absorption power with practically allowable thickness by dispersing soft magnetic fine metal powder having grain size of specified value or below into a matrix of rubber or synthetic resin. A soft magnetic...
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JP2000137068A |
To enhance azimuth detection performance by reducing the amount of coupling between sending and receiving sides by means of simple constitution. Two opposed shield plates 13, 14 are provided between a sending antenna 11 and a receiving a...
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JP3041295B1 |
A composite electromagnetic wave absorber capable of restricting the height of a pyramidal electromagnetic wave absorber and being applied to a compact anechoic chamber, wherein an upper absorber (3) is fabricated by dispersing ferrite p...
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JP3041311B2 |
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JP2000134032A |
To make an absorber light in weight and also obtain the structure of a radio wave absorption panel corresponding to a wide band for both a VHF and a UHF by using a ferrite plate having specific width and thickness for the absorber. In a ...
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JP2000133983A |
To provide a matching radio wave absorbing body which can be easily regulated in matching frequencies and whose matching frequencies can be widened in band width. A matching-type radio wave absorbing body is equipped with a radio wave ab...
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JP2000133981A |
To provide a radio wave or a magnetic shield which is capable of shielding a target from magnetic waves or radio waves and formed as thin as prescribed keeping high in profitability. Aluminum foils 11a and 12a are provided as a pair of c...
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JP3038436B1 |
[wrap up] [Task] It provides a radio wave absorber with a Γ of 6 dB or more regardless of frequency at 18 to 100 GHz. It is a radio wave absorber having a conductor layer and a dielectric layer, the thickness of the dielectric layer is ...
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JP2000124732A |
To provide the portable telephone of a structure capable of smoothing the deterioration of the sensitivity of communication caused by the positional relation of the base station of the portable telephone and the electromagnetic wave prot...
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JP3036466B2 |
To attain miniaturization and to reduce cost by providing a radio wave absorber at one part of the ceiling around a transmitting/receiving means. A master transmitter/receiver 5 is attached on the ceiling T and transmits/receives communi...
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JP3036252B2 |
PURPOSE: To obtain a wave absorber and a wave absorbing wall using the wave absorber having light weight and easy manufacture while allowing to suppress transport cost low. CONSTITUTION: Two wave absorber plates 10, 11 composed of an ohm...
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JP2000114768A |
To allow electric wave absorption for wide frequency band and the electric wave at different incident angle, by providing a ferrite rod of specific relationship between width and thickness continuously in magnetic field direction, with a...
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JP2000114864A |
To provide a radio wave absorbing panel structure for a glass curtain wall having satisfactory radio wave absorbing characteristics to the radio waves over a wide frequency range in various incident angles.The glass, an air layer, a radi...
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JP2000114766A |
To prevent invasion of a radio signal into an electromagnetic shielding space through e.g. a ventilation port or leakage of the radio signal from the electromagnetic shielding space into the exterior.In an electromagnetic shield 1, a hon...
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JP2000114863A |
To absorb the radio waves over a wide frequency range in various incident angles.An exterior member, an air layer, a radio wave absorber and a reflector are arranged in this order. In this case, as the structure of the radio wave absorbe...
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JP2000114862A |
To provide a radio wave absorbing panel for a glass curtain wall having satisfactory radio wave absorbing characteristics to the radio waves over a wide frequency range in various incident angles.The glass, an air layer, a radio wave abs...
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JP3033369B2 |
PURPOSE: To utilize the radio wave absorber for window glass, etc., as an optical transparent radio wave absorber. CONSTITUTION: In a multilayer type radio wave reflector 51, in which resistance films having proper surface resistance and...
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JP2000106273A |
To provide a device and method which enabled a member made of a microwaves-absorbing synthetic resin to be uniformly heated, while being limited spatially.A device for heating a member made of a synthetic resin which absorbs microwaves i...
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