Title :
Efficient 3D finite difference frequency-domain modeling of scattering in lossy half-space geometries
Author :
Dong, Qiuzhao ; Zhan, He ; Rappaport, Carey M.
Author_Institution :
Northeastern Univ., Boston
Abstract :
A novel 3D Matlab-based FDFD model has been introduced and tested, and an example of simulated scattered E-field is presented. The modeled results compare well to results from other models. This model can easily handle complicated geometry including rough surfaces. The required CPU time is relatively fast at about 1 hour for the typical grid size (90x90x90). The iterative LGMRES method without preconditioner works well and converges quickly.
Keywords :
absorbing media; finite difference time-domain analysis; frequency-domain analysis; 3D finite difference frequency-domain modeling; FDFD model; iterative LGMRES method; lossy half-space geometries; Computer languages; Finite difference methods; Geometry; Iterative methods; Mathematical model; Rough surfaces; Scattering; Solid modeling; Surface roughness; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395863
