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Kazuaki Shimba,Shozo Yuki,Nobuki Tezuka,Satoshi Sugimoto 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
Nowadays, many communication devices use GHz-range microwaves, which cause serious issues,such as electromagnetic interference. For the prevention of these problems, microwave absorbersconsisting of polymer composites with magnetic particles have received attention. With the currenttrend being to miniaturize devices, thin microwave absorber are now required. This paperreports that polymer composites with amorphous Fe-B submicrometer particles and Ni-Zn-Co ferritenanoparticles showed a permeability of µ0r = 8.0-9.0 at 1.0 GHz and a resonant frequency of fr= 1.8 - 2.4 GHz. They also exhibited good microwave absorption properties at 0.7 - 1.4 GHz forthicknesses of 2.5 - 3.9 mm.