Title :
A multi-relaxation (FD)2-TD method for modeling dispersion in biological tissues
Author :
Pontalti, Rolando ; Cristoforetti, Luca ; Antolini, Renzo ; Cescatti, Lorenza
Author_Institution :
Centro Materiali e Biofisica, Trento, Italy
fDate :
3/1/1994 12:00:00 AM
Abstract :
Pulse excitation in FD-TD provides multifrequency results with a single run of the code. The introduction of the Frequency Dependent FD-TD ((FD)2-TD) has also recently provided a means to deal with dispersive materials on condition that they had a first order permittivity. The authors present a multirelaxation approach to widen the (FD)2TD applicability to materials with more complex permittivity such as biological tissues
Keywords :
bioelectric phenomena; finite difference time-domain analysis; physiological models; relaxation theory; RF exposure; biological tissues; complex permittivity; dispersion; frequency dependent FD-TD; microwave exposure; multi-relaxation (FD)2-TD method; pulse excitation; Biological materials; Biological system modeling; Biological tissues; Dispersion; Humans; Hyperthermia; Muscles; Permittivity; Protection; Radio frequency;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
