A thin coating of a composite made from zinc ferrite and polyaniline absorbs microwave radiation in Ku band, according to researchers at  Anhui University of Science and Technology in China. The composites were synthesised by a two-step hydrothermal and in-situ polymerisation method, with Zn ferrite (2-30nm particles) used to adjust the impedance matching and improve ...

This story continues at Polyaniline + zinc ferrite = microwave absorption

Or just read more coverage at Electronics Weekly