Optimization and design of conductivity profiles for the PML boundary condition and its application to bioelectromagnetic problems

Author

Lazzi, G. ; Furse, C.M. ; Gandhi, O.P.

Author_Institution

Dept. of Electr. Eng., Utah Univ., Salt Lake City, UT, USA

Volume

1

fYear

1997

fDate

13-18 July 1997

Firstpage

486

Abstract

An optimization technique for the perfect matched layer (PML) absorbing boundary conditions has been presented using the FDTD code. The analytical approach to predict the theoretical reflection introduced by a PML backed by a metal plane has been used to determine optimized profiles for the conductivity of the PML material. The optimized PML has been used for bioelectromagnetic applications, and only small differences have been found to date between the results obtained by using this boundary and traditional boundary conditions like retarded time boundary conditions or those of Mur (1981). The applications relate to the effects of EM fields on humans.

Keywords

biological effects of microwaves; electromagnetic wave absorption; electromagnetic wave reflection; finite difference time-domain analysis; optimisation; 835 MHz; FDTD code; PML; PML boundary condition; UHF; absorbing boundary conditions; bioelectromagnetic problems; conductivity profiles; design; human body; metal plane; optimization technique; perfect matched layer; reflection; Biological materials; Boundary conditions; Conducting materials; Conductivity; Design optimization; Finite difference methods; Humans; Inorganic materials; Reflection; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest

Conference_Location

Montreal, Quebec, Canada

Print_ISBN

0-7803-4178-3

Type

conf

DOI

10.1109/APS.1997.630204

Filename

630204