Broadband wave absorption apparatus
AssigneesYoshiyuki Naito, Michiharu Takahashi
InventorsYoshiyuki Naito, Tetsuya Mizumoto, Michiharu Takahashi
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Abstract
The provision of of an electromagnetic wave absorbing apparatus having a broadband electromagnetic wave absorbing characteristic, and which can also be used for the improvement of existing electromagnetic wave absorbing apparatus. Successive layers of an sintered ferrite magnetic body (F), a dielectric body (D) having a low permittivity, and a magnetic body (RF) having a low magnetic permeability, are overlapped on a flat reflector plate, and the relationship between the magnetic permeability .mu.1 of the sintered ferrite magnetic body and the magnetic permeability of the magnetic body having a low magnetic permeability is .mu.1.gtoreq.25.multidot..mu.2.
Claims2
A broadband electromagnetic wave absorbing apparatus comprising:
- successive layers of a first dielectric body, a sintered ferrite magnetic body, a second dielectric body having a low permittivity, and a magnetic body having a low magnetic permeability overlapped on a flat reflector plate, said first dielectric being disposed between said reflector plate and said sintered ferrite magnetic body, and where the relationship between the magnetic permeability .mu.1 of said sintered ferrite magnetic body and the magnetic permeability of .mu.2 of said magnetic body having a low magnetic permeability is .mu.1.gtoreq.25.multidot..mu.2.
Dependencies are inferred from the claim text.