Title :
A FDTD-based propagator with a material independent PML formulation
Author :
Batista, Claudio G. ; Rego, Cássio Gonçalves do ; Mello, Luiz A R da Silva
Author_Institution :
Grad. Program in Electr. Eng., Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil
fDate :
Oct. 29 2011-Nov. 1 2011
Abstract :
This work presents a finite-difference time-domain (FDTD) propagator comprising a moving window algorithm and a material independent (MI) perfectly matched layer (PML) formulation. The FDTD provides a full-wave electromagnetic calculation and a large frequency range application. The FDTD mesh is constructed only in the virtual window, saving memory and computation effort. The MI-PML formulation can be efficiently applied to any real propagation scenario without any modification. The method is applied to two idealized terrain profiles involving HF and VHF signals. The exhibited results are preliminary and the FDTD-propagator is still under development.
Keywords :
finite difference time-domain analysis; radiowave propagation; transmission line matrix methods; FDTD mesh; FDTD-based propagator; HF signals; MI-PML formulation; VHF signals; finite-difference time-domain propagator; full-wave electromagnetic calculation; idealized terrain profiles; large frequency range application; material independent PML formulation; perfectly matched layer formulation; real propagation scenario; virtual window; window algorithm; Computational modeling; Equations; Finite difference methods; Materials; Mathematical model; Moment methods; Time domain analysis; FDTD; Radiowave propagation; material independent PML; moving window algorithm;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169400
