Specific Absorption Rate Assessment Using Simultaneous Electric Field and Temperature Measurements

Author

Ticaud, Nicolas ; Kohler, Sophie ; Jarrige, Pierre ; Duvillaret, Lionel ; Gaborit, Gwenael ; Connor, Rodney P O ; Arnaud-Cormos, Delia ; Leveque, Philippe

Author_Institution

Xlim Res. Inst., Univ. of Limoges, Limoges, France

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

252

Lastpage

255

Abstract

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.

Keywords

electric field measurement; electro-optical devices; electromagnetic wave absorption; finite difference time-domain analysis; temperature measurement; Petri dish; electric field measurements; electrooptic probe; finite difference time domain method; frequency 1800 MHz; in situ temperature; simultaneous measurements; specific absorption rate assessment; temperature measurements; temperature sensitivity measurements; transverse electromagnetic cell; water solution; Electric fields; Probes; Sensitivity; Specific absorption rate; TEM cells; Temperature measurement; Temperature sensors; Bioelectromagnetism; dosimetry; electrooptic probe; finite difference time domain (FDTD); temperature measurements;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2189748

Filename

6164211