A study of uncertainties in modeling antenna performance and power absorption in the head of a cellular phone user

Konstantina S. Nikita, Marta Cavagnaro, Paolo Bernardi, Nikolaos K. Uzunoglu, Stefano Pisa, Emanuele Piuzzi, John N. Sahalos, George I. Krikelas, John A. Vaul, Peter S. Excell, Graziano Cerri, Simona Chiarandini, Roberto De Leo, Paola Russo

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Abstract

A set of finite-difference time-domain (FDTD) numerical experiments modeling canonical representations of the human head/cellular phone interaction has been performed in order to investigate the effect of specific simulation details (e.g., antenna numerical representation and absorbing boundary conditions) on computed results. Furthermore, hybrid techniques based on the dyadic Green's function and the method of auxiliary sources, and on a hybrid method-of-moments-FDTD technique have been used to compute parameters of interest for comparison with the FDTD evaluated parameters. It was found that small, but potentially significant, differences in computed results could occur, even between groups that were nominally using a very similar method. However, these differences could be made to become very small when precise details of the simulation were harmonized, particularly in the regions close to the source point.

Original languageEnglish
Pages (from-to)2676-2685
Number of pages10
JournalIEEE Transactions on Microwave Theory and Techniques
Volume48
Issue number12
DOIs
Publication statusPublished - 2000

Keywords

  • Biological effects of electromagnetic radiation
  • Dosimetry
  • Error analysis
  • Fdtd methods
  • Hybrid numerical techniques
  • Land mobile radio cellular systems

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    Nikita, K. S., Cavagnaro, M., Bernardi, P., Uzunoglu, N. K., Pisa, S., Piuzzi, E., Sahalos, J. N., Krikelas, G. I., Vaul, J. A., Excell, P. S., Cerri, G., Chiarandini, S., De Leo, R., & Russo, P. (2000). A study of uncertainties in modeling antenna performance and power absorption in the head of a cellular phone user. IEEE Transactions on Microwave Theory and Techniques, 48(12), 2676-2685. https://doi.org/10.1109/22.899030