Title :
The 3-D multidomain pseudospectral time-domain algorithm for inhomogeneous conductive media
Author :
Gang Zhao ; Qing Huo Liu
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
A three-dimensional multidomain pseudospectral time-domain algorithm has been developed to model electromagnetic scattering by inhomogeneous objects as well as perfect conductors. The numerical results have been validated by analytical solutions and the FDTD method. Compared to the FDTD method, this multidomain PSTD algorithm has shown a marked improvement in terms of sampling density, execution time and memory requirement. The algorithm has been applied to calculate the radar cross section.
Keywords :
Chebyshev approximation; computational electromagnetics; conducting bodies; electromagnetic wave scattering; inhomogeneous media; polynomial approximation; radar cross-sections; spectral-domain analysis; time-domain analysis; Chebyshev approximation; Chebyshev method; Chebyshev polynomial; FDTD method; Fourier collocation method; Maxwell´s equations; PML; cube resonator; dipole source; electromagnetic scattering; execution time; inhomogeneous objects; lossy cylinder; memory requirement; perfect conductors; pseudospectral time-domain algorithm; radar cross section; sampling density; three-dimensional multidomain algorithm; Chebyshev approximation; Dielectrics; Finite difference methods; Ground penetrating radar; Interpolation; Nonhomogeneous media; Polynomials; Resonant frequency; Sampling methods; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219909
