Funkwellen-Streufolie mit Schutzschicht

Details

Veröffentlichungs-Nr.

EP4742452

Anmeldetag

1. Juli 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

IPC

H01Q15/14, B32B7/025

Abstract

Provided is a protective-layer-equipped radio-wave scattering sheet that is provided with a protective layer that does not inhibit radio-wave scattering characteristics as much as possible while improving the appearance and durability of the radio-wave scattering sheet. [Solution] In a protective-layer-equipped radio-wave scattering sheet 11, in which an radio-wave scattering surface 1d of an radio-wave scattering sheet 1 is covered with a dielectric layer 2 to protect a front metal processed layer 1c, the appearance and durability of the radio-wave scattering sheet 1 is improved by the dielectric layer 2. In addition, by making the dielectric layer 2 covering the radio-wave scattering surface 1d have a thickness in the range of 0.25 mm to 3.0 mm, and by making the dielectric layer 2 have a relative permittivity in the range of 2.0 to 4.0, a decrease in the diffusion coefficient is limited to 10% or less.

Anmelder

Firma

National Institute of Information and Communications Technology

Land

🇯🇵 Japan

Fachgebiete