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A platform for research: civil engineering, architecture and urbanism
ELECTROMAGNETIC WAVE ABSORBER, SYSTEM PROVIDED WITH ELECTROMAGNETIC WAVE ABSORBER, AND ELECTROMAGNETIC WAVE ABSORPTION METHOD USING ELECTROMAGNETIC WAVE ABSORBER
To provide an electromagnetic wave absorber utilizing magnetic loss based on dielectric Mie resonance, a system provided with this electromagnetic wave absorber, and an electromagnetic wave absorption method using this electromagnetic wave absorber.SOLUTION: An electromagnetic wave absorber includes a base and a dielectric arrangement group composed of a plurality of disk-shaped dielectrics. The bottom surface of each dielectric is arranged to face one surface of the base, and each dielectric has a relative permittivity real part εr' at 100 MHz of 30 or more, an average diameter Dm of 100 μm or more and 10000 μm or less (0.1 mm or more and 10 mm or less), an average thickness Tm of 20 μm or more and 300 μm or less (0.02 mm or more and 0.3 mm or less), and the ratio of the average diameter Dm to the average thickness Tm (Dm/Tm ratio) of 3 or more, and the variation coefficient CV of the thickness T is 20% or less.SELECTED DRAWING: None
【課題】誘電体のＭｉｅ共鳴に基づく磁気損失を利用した電磁波吸収体、この電磁波吸収体を備えたシステム及びこの電磁波吸収体を用いた電磁波の吸収方法を提供する。【解決手段】電磁波吸収体は、基体と、複数個の円板状誘電体から構成される誘電体配置群と、を備える。各誘電体の底面が基体の一表面と対向するように配置され、各誘電体は、１００ＭＨｚにおける比誘電率実部εｒ’が３０以上、平均直径Ｄｍが１００μｍ以上１００００μｍ以下（０．１ｍｍ以上１０ｍｍ以下）、平均厚さＴｍが２０μｍ以上３００μｍ以下（０．０２ｍｍ以上０．３ｍｍ以下）であり、平均厚さＴｍに対する平均直径Ｄｍの比（Ｄｍ／Ｔｍ比）が３以上であり、厚さＴの変動係数ＣＶが２０％以下である。【選択図】なし
ELECTROMAGNETIC WAVE ABSORBER, SYSTEM PROVIDED WITH ELECTROMAGNETIC WAVE ABSORBER, AND ELECTROMAGNETIC WAVE ABSORPTION METHOD USING ELECTROMAGNETIC WAVE ABSORBER
To provide an electromagnetic wave absorber utilizing magnetic loss based on dielectric Mie resonance, a system provided with this electromagnetic wave absorber, and an electromagnetic wave absorption method using this electromagnetic wave absorber.SOLUTION: An electromagnetic wave absorber includes a base and a dielectric arrangement group composed of a plurality of disk-shaped dielectrics. The bottom surface of each dielectric is arranged to face one surface of the base, and each dielectric has a relative permittivity real part εr' at 100 MHz of 30 or more, an average diameter Dm of 100 μm or more and 10000 μm or less (0.1 mm or more and 10 mm or less), an average thickness Tm of 20 μm or more and 300 μm or less (0.02 mm or more and 0.3 mm or less), and the ratio of the average diameter Dm to the average thickness Tm (Dm/Tm ratio) of 3 or more, and the variation coefficient CV of the thickness T is 20% or less.SELECTED DRAWING: None
【課題】誘電体のＭｉｅ共鳴に基づく磁気損失を利用した電磁波吸収体、この電磁波吸収体を備えたシステム及びこの電磁波吸収体を用いた電磁波の吸収方法を提供する。【解決手段】電磁波吸収体は、基体と、複数個の円板状誘電体から構成される誘電体配置群と、を備える。各誘電体の底面が基体の一表面と対向するように配置され、各誘電体は、１００ＭＨｚにおける比誘電率実部εｒ’が３０以上、平均直径Ｄｍが１００μｍ以上１００００μｍ以下（０．１ｍｍ以上１０ｍｍ以下）、平均厚さＴｍが２０μｍ以上３００μｍ以下（０．０２ｍｍ以上０．３ｍｍ以下）であり、平均厚さＴｍに対する平均直径Ｄｍの比（Ｄｍ／Ｔｍ比）が３以上であり、厚さＴの変動係数ＣＶが２０％以下である。【選択図】なし
ELECTROMAGNETIC WAVE ABSORBER, SYSTEM PROVIDED WITH ELECTROMAGNETIC WAVE ABSORBER, AND ELECTROMAGNETIC WAVE ABSORPTION METHOD USING ELECTROMAGNETIC WAVE ABSORBER
電磁波吸収体、電磁波吸収体を備えたシステム、及び電磁波吸収体を用いた電磁波の吸収方法
HYODO KAZUSHIGE (author)
2022-09-06
Patent
Electronic Resource
Japanese
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