Radio wave-absorbing laminate film, production method therefor, and element including same
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United States of America Patent
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May 7, 2024
Grant Date -
Jul 22, 2021
app pub date -
May 30, 2019
filing date -
Jun 6, 2018
priority date (Note) -
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Abstract
A radio wave-absorbing laminate film in which both the top surface and the bottom surface have superior transmission attenuation properties and reflection attenuation capabilities in extremely high-frequency wave bands and higher, and which exhibits excellent radio wave absorption properties even when extremely thin; a production method for the film; and an element containing the film. A radio wave-absorbing laminate film having radio wave-absorbing layers, the radio wave-absorbing laminate film including a center layer, two substrate layers, and two radio wave-absorbing layers, the center layer containing at least one metal layer, and the two substrate layers being laminated on both surfaces of the center layer. With regard to each of the two substrate layers, the radio wave-absorbing layer is laminated on the surface opposite to the center layer, and, the two substrate layers are the same or different, the two radio wave-absorbing layers are the same or different, and at least one of the radio wave-absorbing layers contains a magnetic body.
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