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Patent Searching and Data


Title:
RADIO WAVE ABSORBING PANEL STRUCTURE
Document Type and Number:
Japanese Patent JP2000114862
Kind Code:
A
Abstract:

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 absorber and a reflector are arranged in this order. In this case, as the structure of the radio wave absorber, a ferrite stick 3 having width A of 16 to 23 mm, thickness B of 15 to 22 mm and satisfying condition of A≥B is used, the ferrite sticks are arranged with the gap rate of 70 to 85% in the electric field direction of coming radio waves and continuously in a magnetic field direction and the ferrite sticks 3 are fixed in grooves on the bottom of a box-shaped metal case 1.


Inventors:
TANIGUCHI NAONOBU
FUKUDA KUNIO
TAMAKAI TOSHIYUKI
TANAKA TOSHIHIKO
Application Number:
JP28487198A
Publication Date:
April 21, 2000
Filing Date:
October 07, 1998
Export Citation:
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Assignee:
HITACHI METALS LTD
International Classes:
H01Q17/00; H01Q1/22; (IPC1-7): H01Q17/00; H01Q1/22