Title :
Computation of electromagnetic fields in dense biological cell structures using modified subgridding of quasi-static FDTD method
Author :
See, C.H. ; Abd-Alhameed, R.A. ; Excell, P.S.
Author_Institution :
Mobile & Satellite Commun. Res. Centre, Univ. of Bradford, Bradford
Abstract :
This paper demonstrates the detailed electromagnetic modelling of biological cell structures by using modified subgridding FDTD techniques. This is done by incorporating a quasi-static FDTD solution, Floquet periodic boundary conditions and modified PML boundary conditions to achieve microdosimetric modelling of bioelectromagnetic interactions at cellular level. Particular attention is paid to exploration of the field distribution over the membrane layer of the biological cells. The method enables the analysis of a large structure of cells in a more computationally efficient way than the modelling of the entire structure. The total fields of the simulated structures are shown to give reasonable and stable results at 2450 MHz.
Keywords :
biomembranes; boundary-value problems; cellular biophysics; dosimetry; finite difference time-domain analysis; Floquet periodic boundary conditions; PML boundary conditions; bioelectromagnetic interactions; biological cell structures; dense cell structures; electromagnetic field computation; electromagnetic modelling; frequency 2450 MHz; microdosimetric modelling; modified subgridding; quasistatic FDTD method; Finite Difference Time Domain (FDTD); Floquet periodic boundary conditions; Quasi-Static method; Subgridding;
Conference_Titel :
Computation in Electromagnetics, 2008. CEM 2008. 2008 IET 7th International Conference on
Conference_Location :
Brighton
Print_ISBN :
978-0-86341-891-4