5G mmwave band flexible and lightweight reflector for radio dead zones

Toppan has developed a product that allows users to control the reflection angle of radio waves in the 1–10 mm wavelength band used in 5G mobile communications. The product is a lightweight, flexible sheet with metasurface1 structure that can reflect 5G millimeter-band radio waves in specific directions, thereby enabling high-speed, multi-connection communications in radio dead zones. The surface of the sheet can also be printed with woodgrain, marble, and other designs, enabling use as wallpaper in offices, factory buildings, and other interior spaces. "This product can improve the user experience and facilitate a range of services by making it possible for radio wave signals to reach locations where previously connectivity was impaired," said Jin Endo, Managing Executive Officer of R&D Strategy and Business Development at Toppan, "With high-quality designs, it can also blend seamlessly into interiors, delivering an unobtrusive solution to help ensure secure, uninterrupted communication via next-generation networks." The new reflector sheet will be exhibited in the Zeta Alliance booth (West Hall, booth 3-12) at the COMNEXT Next Generation Communication Technology & Solutions Expo to be held at Tokyo Big Sight from June 28 to June 30.
Background: The millimeter waveleng...