发明名称 ELECTRIC WAVE ABSORBING PANEL STRUCTURE
摘要 PROBLEM TO BE SOLVED: 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 gap factor of in-coming ratio wave in electric field direction specified, while fixing it to a groove of a metal case. SOLUTION: Related to a radio wave absorbing panel structure with jacket material, air layer, radio wave absorber, reflector provided in this order, a ferrite rod 3 with width (A) 28 mm or less, thickness (B) 22 mm or less while A>B is used, and the ferrite rods 3 are continuously provided in magnetic field direction with gap factor of in-coming radio wave in electric field direction 50-81%, and the ferrite rods 3 are fixed at groove parts at the bottom part of a box-type metal case 1 of a reflector for integration. Thus, a radio wave absorbing panel of good radio wave absorbing characteristics for the radio wave of wide frequency band and different incident angle is provided.
申请公布号 JP2000114768(A) 申请公布日期 2000.04.21
申请号 JP19980284875 申请日期 1998.10.07
申请人 HITACHI METALS LTD 发明人 TANIGUCHI NAONOBU;FUKUDA KUNIO;TAMAKAI TOSHIYUKI;TANAKA TOSHIHIKO
分类号 H05K9/00;H01Q17/00;(IPC1-7):H05K9/00 主分类号 H05K9/00
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