Title :
Multi-domain pseudospectral time-domain method for lossy media
Author :
Guo-Xin Fan ; Qing Huo Liu ; Hesthaven, J.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
The multi-domain pseudospectral time-domain (PSTD) algorithm is extended to model the electromagnetic scattering from 2D buried objects in lossy media. The formulation incorporates a newly developed well-posed PML for lossy media. The numerical results show an excellent agreement with analytical solutions for various canonical problems. The algorithm has been applied to model various GPR applications involving interfaces of arbitrary shape in a lossy half space. Numerical results demonstrate the effectiveness of the multi-domain PSTD algorithm as a new conformal high-order time-domain solver for Maxwell´s equation.
Keywords :
Maxwell equations; absorbing media; electromagnetic wave scattering; spectral-domain analysis; time-domain analysis; 2D buried objects; GPR applications; Maxwell equation; PSTD algorithm; electromagnetic scattering; high-order time-domain solver; lossy half space; lossy media; multi-domain pseudospectral time-domain algorithm; well-posed PML; Chebyshev approximation; Dielectric losses; Finite difference methods; Geometry; Magnetic materials; Mathematics; Maxwell equations; Polynomials; Scattering; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.959597
