Specific Absorption Rate Assessment Using Simultaneous Electric Field and Temperature Measurements

Nicolas Ticaud (1) , Sophie Kohler (1) , Pierre Jarrige (2) , Lionel Duvillaret (3) , G. Gaborit (2) , Rodney P. O'Connor , Delia Arnaud-Cormos (1) , Philippe Lévêque (1)

1 XLIM-OSA - OSA
2 IMEP-LAHC - Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation
3 Kapteos SAS

In this letter, the temperature measurement ability of an electrooptic probe as well as specific absorption rate (SAR) assessments via simultaneous in situ temperature and electric field characterization are reported. The measurements are carried out at 1800 MHz in a Petri dish filled with a water solution and placed in a transverse electromagnetic (TEM) cell. From the temperature sensitivity measurements, a standard deviation of 27 mK is obtained. The SAR values obtained both via temperature and electric field are also compared to finite-difference time-domain (FDTD) simulated numerical results. A difference of 5% is obtained between the two experimental SAR values. These measured SAR values are consistent with those obtained by the numerical simulations.

Mots clés: Bioelectromagnetism; dosimetry; electrooptic probe; finite difference time domain (FDTD); temperature measurements

Domaines: Micro et nanotechnologies/Microélectronique

Nicolas Ticaud, Sophie Kohler, Pierre Jarrige, Lionel Duvillaret, G. Gaborit, et al.. Specific Absorption Rate Assessment Using Simultaneous Electric Field and Temperature Measurements. IEEE Antennas and Wireless Propagation Letters, 2012, 11, pp.252-255. ⟨10.1109/LAWP.2012.2189748⟩. ⟨hal-00790425⟩