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JPS5411826Y2 |
An alarm system utilizing electromagnetic waves for detecting a moving object comprising an antenna and a transmitter-reciever apparatus having an oscillation loop for detecting changes in the impedance of the antenna. An amplifier circu...
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JPS5449837U |
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JPS5441495A |
PURPOSE: To reduce variation of absorbing capacity to variation of thickness, and at the same time, increase wave absording capacity, by adding metal magnetic powder to ferrite powder.
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JPS5445133U |
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JPS5423543U |
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JPS5419344A |
PURPOSE: To reduce the electromagnetic wave interference, by giving slight attenuation to the objective waves and by giving greater attenuation to unnecessary reflection waves.
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JPS5411654A |
The antenna is produced using an isotropic dielectric lens (1), a solid, flat reflector (3) and a horn (2). The horn (2) which is offset relative to the axis (XX) of the lens (1) radiates a spherical wave. The reflector (3) provides from...
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JPS53130735A |
PURPOSE: A water-containing sludge of a spinel type ferromagnetic oxide is dispersed in a vehicle of a water-soluble or-dispersible coating to produce readily an electromagnetic wave-absorbing coating without the oxide-drying process.
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JPS53130951A |
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JPS53129899A |
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JPS53129226A |
PURPOSE: Magnetic oxide powders formed by ferritization of heavy metals in waste water are dispersed in a high-polymer coating vehicle to produce inexpensively a coating composition for absorbing electromagnetic wave without adverse effe...
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JPS53123053A |
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JPS53110402A |
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JPS53105901A |
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JPS5331275B1 |
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JPS5394801A |
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JPS5385101U |
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JPS5376742U |
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JPS5376705U |
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JPS5320342B2 |
In this antenna, the auxiliary reflector and the aperture of the primary source are located above the main reflector. A cap having a metal layer and an inner absorbent layer covers and surrounds the aperture of the primary source and the...
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JPS5372450U |
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JPS5317750B2 |
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JPS5320165Y2 |
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JPS5362243U |
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JPS5362242U |
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JPS5330251A |
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JPS5325898A |
PURPOSE: The materials of wave absorver can supplied at a low price stablely by using the dusts of iron blast furnace having magnetic quality as the material of wave absorber.
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JPS5324202A |
PURPOSE: To increase the absorption property with an improvement for the disturbance reflection of the electric wave by providing a conductor on the back of the magnetic material.
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JPS534785B2 |
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JPS534784B2 |
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JPS5318366A |
PURPOSE: To obtain an antenna which is capable of shielding undesired radiation radio waves at high efficiency and permitting easy mounting of a dielectric cover of good electrical performances.
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JPS5311501A |
PURPOSE: To reduce the using number of the ferrite plate without lowering the wave absorbing characteristics, and thus to increase the utility of the ferrite plate as a constructional material.
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JPS532139U |
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JPS53704U |
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JPS52168954U |
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JPS52166858U |
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JPS5252505Y2 |
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JPS52149627U |
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JPS52135651A |
PURPOSE: To increase the directivity of electromagnetic wave and the transmission rate of the redome, by stickering the electromagnetic wave absorber to all the inside redome of the dielectric frame or only to the part of the inner wall ...
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JPS52135652A |
PURPOSE: To increase the transmission rate of electromagnetic wave and to increase the redome performance, by covering external the metal frame with electromagnetic wave absorber and reducing the thickness thickness than 1/21/2 of the me...
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JPS52124465A |
PURPOSE: To reuse ferrite as the screening material of each electric wave and magnetism absorption, by adding the viscous material, being able to harden, to ferrite, produced as byproduct from the removing process of noxious metals and h...
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JPS5238236B1 |
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JPS5236384B2 |
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JPS52120529U |
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JPS52112746U |
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JPS5291631A |
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JPS5227355B2 |
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JPS5225066B2 |
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JPS5271158A |
PURPOSE: To mount surely electromagnetic wave absorption material or reflecting plate to leakage coaxial cable with a simple method by using plastic and bolts and nuts.
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JPS5279051U |
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