Title :
A moment-method-based approach to electromagnetic scattering computation by a perturbation technique
Author :
Caorsi, S. ; Ferrando, A. ; Gragnani, G.L. ; Pastorino, M.
Author_Institution :
Dipt. di Elettronica, Pavia Univ., Italy
fDate :
10/1/1997 12:00:00 AM
Abstract :
A modified version of the moment-method is proposed for scattering computations. The approach is based on the assumption that the bodies under test partially differ from known standard models. The numerical computation is developed only for the body parts that exhibit physical and geometrical differences. This can be very useful in several cases, for example, when many partially different scatterers have to be analyzed or when a scatterer may assume different spatial positions whereas a part of the scatterer stays unchanged. The proposed method is described and some considerations are made concerning the offered computational advantages
Keywords :
Green´s function methods; electromagnetic fields; electromagnetic wave scattering; method of moments; Green´s function; bodies under test; electromagnetic scattering computation; geometrical differences; moment method; numerical computation; partially different scatterers; perturbation technique; physical differences; spatial positions; standard models; Electromagnetic scattering; Finite difference methods; Finite element methods; Geometry; Moment methods; Perturbation methods; Physical theory of diffraction; Physics computing; Testing; Time domain analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
