Exposure Assessment Using the Dual-Grid Finite-Difference Time-Domain Method

Author

Pascaud, Romain ; Gillard, Raphaël ; Loison, Renaud ; Wiart, Joe ; Wong, Man-Faï

Author_Institution

Inst. d´´Electron. et des Telecommun. de Rennes, Rennes

Volume

18

Issue

10

fYear

2008

Firstpage

656

Lastpage

658

Abstract

A new way to carry out numerical cellular telephone simulation in the presence of the head is presented. Here, two finite-difference time-domain (FDTD) simulations with different spatial and time resolutions are sequentially combined to perform a dual-grid FDTD (DG-FDTD) simulation. The DG-FDTD approach has the significant advantages to remain stable along the computation and to be easy to implement in a typical FDTD code. When compared with classical FDTD analysis, the DG-FDTD approach exhibits a reduction in computation time and memory requirements by a factor of 2.3 and 3.2, respectively, while providing accurate results both in near-field and far-field radiation.

Keywords

cellular radio; finite difference time-domain analysis; mobile handsets; FDTD; cellular telephone simulation; dual-grid finite-difference time-domain method; far-field radiation; memory requirements; near-field radiation; Computational modeling; Dosimetry; Electromagnetic radiation; Finite difference methods; Humans; Numerical simulation; Spatial resolution; Telecommunications; Telephony; Time domain analysis; Cellular telephone; dosimetry; finite-difference time-domain (FDTD) methods;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2008.2003448

Filename

4639563