Analysis of the influence of the cell geometry, orientation and cell proximity effects on the electric field distribution from direct RF exposure

This paper shows the importance of using a cell model with the proper geome try, orientation and internal structure to study possible cellular effects from direct radiofrequency exposure. For this purpose, the electric field i ntensity is calculated, using the finite element numerical technique, in si ngle-and multilayer spherical, cylindrical and ellipsoidal mammalian cell m odels exposed to linearly polarized electromagnetic plane waves of frequenc ies 900 and 2450 MHz. An extensive analysis is performed on the influence t hat the cell geometry and orientation with respect to the external field ha ve in the value of the electric field induced in the membrane and cytoplasm . We also show the significant role that the cytoplasmic and extracellular bound water layers play in determining the electric field intensity for the cylindrical and ellipsoidal cell models. Finally, a study of the mutual in teractions between cells shows that polarizing effects between cells signif icantly modify the values of field intensity within the cell.