Development and Characterization of Multi-Walled Carbon Nanotube-Based Dielectric Sheets for Electromagnetic Shielding and Absorption

Key Points

• The aim is to develop and characterize dielectric sheets made from multi-walled carbon nanotubes for effective electromagnetic shielding and absorption.
• Produced multi-walled carbon nanotube dielectric sheets for large-scale applications.
• Evaluated shielding and absorption characteristics from 0.7 to 40 GHz.
• Conducted radiation noise tests in accordance with CISPR32 using free-space methods.
• Adjusted sheet thickness and MWCNT content to optimize performance.
• Applied transmission line theory for equivalent model analysis.
• Demonstrated effective shielding materials across broad frequency ranges.
• Established absorption capabilities specifically for the 30 GHz band.
• Identified that the shielding and absorption effects are predominantly influenced by effective conductivity.