Title :
Fabrication of the composite electromagnetic wave absorber
Author :
Kondo, Takatoshi ; Aoki, Takao ; Asano, Koji ; Yoshikado, Shinzo
Author_Institution :
Dept. of Electron., Doshisha Univ., Kyoto, Japan
Abstract :
We developed a composite metal-backed single layered electromagnetic wave absorber of (spinel-type Ni-Zn ferrite, SiO2 ) composite materials, which operates in the frequency region from 1 to 8 GHz. A composite ferrite with a suitable thickness has a higher absorption frequency range than a Ni-Zn ferrite and Ba ferrite absorbers. The center absorption frequency can be changed by changing the mixing ratio. The absorption band width is almost independent at the thickness of the composite ferrite in the wide range
Keywords :
absorbing media; composite materials; electromagnetic wave absorption; ferrites; iron compounds; nickel compounds; powder technology; silicon compounds; zinc compounds; 1 to 8 GHz; Ni0.36Zn0.64Fe2O4-SiO 2; Ni0.5Zn0.5Fe2O4-SiO 2; Ni0.75Zn0.25Fe2O4-SiO 2; SiO2; absorption band width; center absorption frequency; composite electromagnetic wave absorber; composite ferrite; composite materials; fabrication; metal-backed single layered electromagnetic wave absorber; mixing ratio change; spinel-type Ni-Zn ferrite; Cooling; Electromagnetic scattering; Electromagnetic wave absorption; Fabrication; Ferrites; Frequency; Permeability; Permittivity; Powders; Reflection;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801348
