volume | PIER Journals

Abstract

A conformal FDTD approach is developed to compute scattering from anisotropically coated bodies. Comparisons between the standard and conformal FDTDs are numerically carried out to demonstrate the advantages of the conformal FDTD. Scattering of anisotropic dielectric sphere is computed and compared with the analytical results to further validate the developed approach. Several new results of scattering by anisotropically coated bodies are also given in the paper.

1. Senior, T. B. A., "Approximate boundary conditions," IEEE Trans. Antennas Propag., Vol. 29, No. 5, 826-829, Sept. 1981.
doi:10.1109/TAP.1981.1142657 Google Scholar

2. Rao, S. M., C. C. Cha, R. L. Cravey, and D. L. Wilkes, "Electromagnetic scattering from arbitrary shaped conducting bodies coated with lossy materials of arbitrary thickness," IEEE Trans. Antennas Propag.,, Vol. 39, No. 5, 627-631, May 1991.
doi:10.1109/8.81490 Google Scholar

3. Sheng, X. Q., J. M. Jin, J. M. Song, C. C. Lu, and W. C. Chew, "On the formulation of hybrid finite-element and boundaryintegral method for 3D scattering," IEEE Trans. Antennas Propag., Vol. 46, 303-311, Mar. 1998.
doi:10.1109/8.662648 Google Scholar

4. Jurgens, T. G., A. Taflove, K. R. Umashankar, and T. G. Moore, "Finite difference time-domain modeling of curved surfaces," IEEE Trans. Antennas Propag., Vol. 40, 357-366, 1992.
doi:10.1109/8.138836 Google Scholar

5. Yu, W. and R. Mittra, "A conformal finite difference time domain technique for modeling curved dielectric surfaces," IEEE Microwave and Wireless Components Letters, Vol. 11, No. 1, 25-27, Jan. 2001.
doi:10.1109/7260.905957 Google Scholar

6. Kunz, K. S. and R. J. Luebbers, The Finite Difference Time Domain Method for Electromagnetics, CRC Press, Boca Raton, FL, 1993.

7. Taflove, A. and S. C. Hagness, Computational Electrodynamics: The Finite Difference Time Domain Method, 2nd Edition, Artech House, Norwood, MA, 2000.

8. Luebbers, R. J., K. S. Kunz, M. Schneider, and F. Hunsberger, "A finite-difference time-domain near zone to far zone transformation," IEEE Trans. Antennas Propag., Vol. 39, 429-433, Apr. 1991.
doi:10.1109/8.81453 Google Scholar

9. Varadan, V. V., A. Lakhtakia, and V. K. Varadan, "Scattering by three-dimensional anisotropic scatterers," IEEE Trans. Antennas Propag., Vol. 37, 800-802, June 1989.
doi:10.1109/8.29369 Google Scholar

10. Yaghjian, A. D. and R. V. McGahan, "Broadside radar crosssection of a perfectly conducting cube," IEEE Trans. Antennas Propag., Vol. 33, 321-329, Mar. 1985.
doi:10.1109/TAP.1985.1143582 Google Scholar

Dr. H.-X. Zheng

Dr. X.-Q. Sheng

Dr. Edward Yung