Title :
Characterization of electromagnetic radiation absorber materials
Author :
Silva, Erik Farias da ; Rocha, Jerônimo Silva ; Lins, Paulo Ribeiro, Jr. ; Nóbrega, Shayenne Diniz da ; De Alencar, Marcelo Sampaio
Author_Institution :
Dept. of Electr. Eng., Campina Grande Fed. Univ., Campinas, Brazil
Abstract :
This paper describes the comparison of absorbing characteristics of ferrite, graphite and carbon black, in the frequency band of 1.5 GHz to the 3 GHz. The substance is mixed in distinct proportions with synthetic enamel and applied on plates of EPS covered with aluminum paper (NRL arch technique) and without covering (insertion between antennas technique). The experimental results show that the graphite presents the largest attenuation for the electromagnetic radiation in the in the frequency band analyzed.
Keywords :
UHF antennas; electromagnetic wave absorption; electromagnetic wave scattering; electromagnetic waves; enamels; ferrites; graphite; microwave antennas; 1.5 to 3 GHz; antenna insertion techniques; carbon black; electromagnetic radiation absorber materials; electromagnetic radiation attenuation; expanded polystyrene; ferrites; graphites; synthetic enamel; Anechoic chambers; Conducting materials; Conductivity; Dielectric materials; Electromagnetic interference; Electromagnetic radiation; Ferrimagnetic materials; Ferrites; Frequency; Magnetic materials;
Conference_Titel :
Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on
Print_ISBN :
0-7803-9341-4
DOI :
10.1109/IMOC.2005.1580010
