Title :
Wavelet-like based efficient analysis of dielectric and magnetic scatterers using the equivalence principle
Author :
Pereira, F. Quesada ; Vidal, A. ; Boria, V.E. ; Melcon, A. Alvarez ; García, J. Pascual ; Pérez, A.
Author_Institution :
Tech. Univ. of Cartagena, Spain
Abstract :
Lossy dielectric and magnetic obstacles are typically present in many high-frequency scattering applications. We study this problem using the equivalence principle and the method of moments (MoM). When the structure is complex and high accuracy is required; the number of unknowns in the numerical solution naturally grows. Therefore, we propose the use of wavelet-like bases to improve the numerical efficiency and memory requirements. For verification purposes, the results provided by the new technique are successfully compared with those obtained with the conventional MoM approach. The new technique has been applied to characterize the scattering behavior of large square and elliptical obstacles which are composed of lossy dielectric and magnetic media.
Keywords :
absorbing media; dielectric bodies; electromagnetic wave scattering; method of moments; wavelet transforms; MoM; elliptical obstacles; equivalence principle; lossy dielectric obstacles; lossy dielectric scatterers; magnetic obstacles; magnetic scatterers; method of moments; square obstacles; wavelet; Boundary conditions; Dielectric losses; Integral equations; Magnetic analysis; Magnetic losses; Moment methods; Performance analysis; Scattering; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552546