Title :
Researching of ferromagnetic inclusions influence on protecting properties of shielding composite materials with dielectric and magnetic structure elements
Author :
Pukhir, H.A. ; Nasonova, N.V.
Author_Institution :
Inf. Security Dept., Belarussian State Univ. of Inf. & Radioelectron., Minsk, Belarus
Abstract :
The effect of ferromagnetic impurities in electromagnetic absorbers is studied. It has established that a small amount of magnetic powder in composite structure influence on attenuation and reflection characteristics of shielding material. These magnetic inclusions can increase the attenuation at 15 dB and reflection coefficient at 2,5 dB in comparison with dielectric samples. The compound with powders of silica and nickel-zinc ferrite as a base of shielding composite has investigated. The dependence of the shielding characteristics of the composite is shown. The use of these composite materials for creation of electromagnetic shielding constructions are considered.
Keywords :
composite materials; electromagnetic shielding; electromagnetic wave scattering; inclusions; magnetic particles; attenuation characteristics; composite material shielding; composite structure; dielectric sample; dielectric structure element; electromagnetic absorber; electromagnetic shielding construction; ferromagnetic impurity; ferromagnetic inclusion; magnetic powder; magnetic structure element; nickel-zinc ferrite; protecting property; reflection characteristics; reflection coefficient; shielding characteristics; Attenuation; Dielectrics; Electromagnetic radiation; Magnetic noise; Magnetic shielding; Magnetomechanical effects; Powders;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6051318
