Wave absorber
AssigneeSekisui Chemical Co., Ltd.
InventorsKatsunori MUTOU, Sachiko NAKAO, Hideki HAYASHI
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Abstract
An object of the present invention is to provide a radio wave absorber that has excellent radio wave absorption against oblique incidence, particularly against oblique incidence of radio waves at around 60 GHz. The object can be achieved by a radio wave absorber that has an absorption range with absorption performance of 15 dB or more within the frequency band of 55 to 65 GHz of 4 GHz or more in a circular polarization measurement at 45° incidence.
Claims12
A radio wave absorber having an absorption range with absorption performance of 15 dB or more within the frequency band of 55 to 65 GHz of 4 GHz or more in a circular polarization measurement at 45° incidence.
λ/4 radio wave absorber member comprising a resistive film and a dielectric layer,
- the λ/4 radio wave absorber member having an absorption range with absorption performance of 15 dB or more within the frequency band of 55 to 65 GHz of 4 GHz or more in a circular polarization measurement at 45° incidence when an aluminum plate with a thickness of 10 μm is stacked on the other side of the dielectric layer.
Dependencies are inferred from the claim text.