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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 11, November 2000

Table of Contents for this issue

Complete paper in PDF format

The SAR Evaluation Method by a Combination of Thermographic Experiments and Biological Tissue-Equivalent Phantoms

Yoshinobu Okano, Member, IEEE Koichi Ito, Member, IEEE Ichirou Ida, Member, IEEE and Masaharu Takahashi Member, IEEE

Page 2094.

Abstract:

Many different phantoms have been proposed as human head models for experimental estimation of the electromagnetic energy field induced in the human head caused by the use of an RF device. In this paper, a biotic tissue-equivalent solid phantom is introduced as the human head model realizing the same relative dielectric constant and conductivity as brain tissue and skull layer. This brain-equivalent solid phantom and skull-equivalent phantom make it possible to accomplish highly reliable and precise estimation of specific absorption rate (SAR) in the human head. The phantom models of cube, sphere,and realistic human heads are fabricated. Measurements are performed to estimate the SAR in the human head models exposed to microwave sources by using the thermographic method.

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