Presentation Information
[8p-PA3-29]Development and Evaluation of Ultra-Lightweight Electromagnetic Wave Absorbing Materials for the Low GHz Band
〇Eriko Kijima1, Kishio Hidaka2, Sho Muroga2, Dan Suzuki2, Motoshi Tanaka3, Shotaro Takahashi4, Tomonaga Ueno1 (1.Nagoya Univ., 2.Tohoku Univ., 3.Akita Univ., 4.NI Tech)
Keywords:
Carbon nanotubes,Electromagnetic wave-absorbing material
The advancement of communications in the aerospace and mobility sectors, along with the development of 5G-compatible mobile electronic devices, has created a demand for lightweight radio wave absorbers capable of handling wide bandwidths. In this study, we developed an ultra-lightweight electromagnetic wave absorber by applying an insulating coating to carbon nanotubes. By suppressing electromagnetic wave reflection while utilizing a combination of conductive and dielectric loss mechanisms, we achieved high electromagnetic wave absorption performance in the low GHz band using a material with a density of 10 mg/cm³.