Title :
Numerical analysis of metal targets in the terahertz and infrared
Author :
Tao, S.F. ; Chen, F. ; Ding, D.Z. ; Wang, D.X. ; Chen, R.S.
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
The Drude model is used to describe the equivalent relative permittivity of metal, which varies the frequency and determines the value of the surface impedance. The surface integral equation method is applied to solve electromagnetic scattering by arbitrarily shaped three dimensional metallic objects modeled with the impedance boundary condition (IBC). Several metal spheres are analyzed which are composed by three different metals. The computed results are all compared with the perfect electric conductor (PEC) case, which show that there are big differences of the electromagnetic properties for different metals.
Keywords :
conductors (electric); electromagnetic wave scattering; numerical analysis; permittivity; surface collisions; surface impedance; Drude model; electromagnetic scattering; equivalent relative permittivity; impedance boundary condition; metal target; numerical analysis; perfect electric conductor case; surface impedance; surface integral equation method; three dimensional metallic object; Copper; Electromagnetic scattering; Permittivity; Surface impedance; Surface treatment; Titanium;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230074
