Broadband microwave absorbing materials based on MWCNTs’ electromagnetic wave filtering effect

Broadband microwave absorbing materials with a multilayer structure based on multi-walled carbon nanotubes (MWCNTs) as a filtering layer has been designed. The absorption curves of the multilayer structure change from a single peak to double peaks after the addition of the filtering layer. As a result, the effective microwave absorption bandwidth is broadened to 12.6 GHz with a total thickness of 2.3 mm. Normalized power flow and power loss...