a Department of Physics, Harbin Institute of Technology, Harbin 150001, China; b Aerospace Research Institute of Special Materials and Processing Technology, Beijing 100074, China
Abstract In this paper, we present the design of multilayer microwave absorbers comprised of CoFe alloy nano-particles and nano-flakes as fillers. The thickness of the unite layer is optimized by using the Genetic Algorithm. Efficient microwave absorptions over a wide frequency band and a range of incident angles are achieved by using multilayer absorbers. We show that the absorbers are effective not only for a planar surface but also for arbitrarily shaped objects as well.
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