Numerical dosimetry of anatomically inhomogeneous animal models using an improved FDTD boundary implementation

Author

Alfadhl, Y. ; Chen, X.

Author_Institution

Dept. of Electron. Eng., London Univ., UK

Volume

3A

fYear

2005

fDate

3-8 July 2005

Firstpage

819

Abstract

A PML (perfect matched layer) absorbing boundary condition (ABC) has been used to improve the accuracy of a widely used numerical dosimetry program based on the FDTD algorithm. The original algorithm implementation was based on the separation of the incident and scattered fields combined with second order Mur boundary conditions. This study has shown that the difference between the results obtained using PML and Mur boundary implementations varies with the radiation frequency, ranging from below 10% for frequencies above 900MHz and significantly higher percentage at the lower frequencies (around %160 at 160MHz).

Keywords

UHF radio propagation; dosimetry; electromagnetic wave absorption; finite difference time-domain analysis; 160 MHz; ABC; Mur boundary; PML; absorbing boundary condition; anatomically inhomogeneous animal models; improved FDTD boundary implementation; numerical dosimetry program; perfect matched layer; radiation frequency; Animals; Boundary conditions; Dosimetry; Electromagnetic scattering; Finite difference methods; Frequency; Maxwell equations; Reflection; Region 1; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552383

Filename

1552383