Title :
SEdB determination for non-conductive electromagnetic absorbers
Author :
Badic, Mihai ; Marinescu, Mihai-Jo
Author_Institution :
HV/EMC Dept., Res. Inst. for Electr. Eng., Bucharest, Romania
Abstract :
The basics of electromagnetic shielding theory provide good results for conductive materials, reflection being the main phenomenon in producing the shielding effect. The paper deals with the determination of SEdB (shielding effectiveness) in the case of materials which are less conductive (like ferrites) but with important absorbing properties (based on macroscopic parameters ε and μ). The theory presented matches the SEdB measuring methods that use coaxial TEM cells.
Keywords :
electromagnetic shielding; electromagnetic wave absorption; ferrites; magnetic permeability; permittivity; SEdB determination; coaxial TEM cells; conductive materials; electromagnetic shielding theory; ferrites; macroscopic parameters; nonconductive electromagnetic absorbers; permeability; permittivity; shielding effectiveness; Absorption; Coaxial components; Conducting materials; Electromagnetic measurements; Electromagnetic shielding; Equations; Ferrites; Microwave theory and techniques; Permeability; Permittivity measurement;
Conference_Titel :
Electromagnetic Compatibility, 2004. EMC 2004. 2004 InternationalSymposium on
Print_ISBN :
0-7803-8443-1
DOI :
10.1109/ISEMC.2004.1349858
