RADIO WAVE ABSORBING WALL AND MANUFACTURE THEREOF

PROBLEM TO BE SOLVED: To ensure bonding with sufficient strength without requiring any special outer layer material by specifying the contact area between a ferrite magnetic material and concrete having specified width in the field direction of a radio wave coming in a wall having an exterior materi...

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Bibliographic Details
Main Authors TANAKA TOSHIHIKO, TANIGUCHI NAONOBU, TAMAKAI TOSHIYUKI
Format Patent
LanguageEnglish
Published 08.10.1999
Edition6
Subjects
BUILDING
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CEILINGS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
ROOFS
WALLS, e.g. PARTITIONS
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Summary:PROBLEM TO BE SOLVED: To ensure bonding with sufficient strength without requiring any special outer layer material by specifying the contact area between a ferrite magnetic material and concrete having specified width in the field direction of a radio wave coming in a wall having an exterior material and in the thickness direction of the wall. SOLUTION: Contact area of a ferrite magnetic material 1 to an exterior material (tile) 2 is set at 8-40% and the contact width between them is set at 4-20 mm thus increasing contact area between the exterior material 2 and concrete 4. Consequently, bonding strength of the exterior material 2 is enhanced and stripping thereof can be prevented. When the contact width between the ferrite magnetic material and the exterior material is set at 4-20 mm, radio wave absorbing characteristics are ensured with a thickness of 20-40 mm. Since concrete 4 flows easily to the joint of the exterior material 2, post treatment of joint is not required and workability can be enhanced.
Bibliography:Application Number: JP19980080027