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

fYear

2011

fDate

Oct. 29 2011-Nov. 1 2011

Firstpage

323

Lastpage

327

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Conference_Location

Natal

ISSN

Pending

Print_ISBN

978-1-4577-1662-1

Type

conf

DOI

10.1109/IMOC.2011.6169400

Filename

6169400