Characteristics of electromagnetic radiation absorption in plain coverings with ferrite Mg-Mn

Author

De Freitas, C. A Reis

Author_Institution

Inst. de Estudos Avancados, Brazil

fYear

2005

fDate

25-28 July 2005

Firstpage

377

Lastpage

380

Abstract

The production technology of covering electromagnetic radiation absorbers of the blanket type is related with the development of new materials and its electromagnetic properties. In this paper it is presented a methodology of one layer plain covering production, with absorption characteristics tuned in the frequency of 9 GHz. These coverings have been confectioned joining ferrite powder of Mg-Mn with aliphatic resin with base epoxy. Reflectivity measurements have been carried out in three samples with different compositions, in the 8 to 12 GHz frequency range, to study its electromagnetic radiation absorption characteristics. The reflectivity data are presented and compared between the different samples.

Keywords

electromagnetic wave absorption; ferrites; magnesium compounds; manganese compounds; microwave materials; microwave propagation; polymers; powders; 8 to 12 GHz; Mg-MnFe₃O₄; aliphatic resin; electromagnetic properties; electromagnetic radiation absorption; ferrite powder; layer plain covering production; plain coverings; reflectivity measurements; Dielectric materials; Electromagnetic radiation; Electromagnetic scattering; Electromagnetic wave absorption; Ferrites; Frequency; Impedance; Magnetic materials; Production; Reflectivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on

Print_ISBN

0-7803-9341-4

Type

conf

DOI

10.1109/IMOC.2005.1580022

Filename

1580022