The Shielding Effects of Lossy Dielectric Material for Three Layered Elliptical Human Model

Author

Nishizawa, S. ; Hashimoto, O.

Author_Institution

DEPARTMENT OF Electrical and Electronic Engineering, Graduate School of Science and Engineering, Aoyama Gakuin Univenity, Setagayaku Chitosedai 6-16-1, 157 Tokyo, Japan. Tel (+81)-3584-1111(Ex.322), Fax: (+81)-3584-1121, E-mail: s-nishi@ee.ayoyama.ac.jp

Volume

1

fYear

1997

fDate

8-12 Sept. 1997

Firstpage

589

Lastpage

595

Abstract

In this paper, we discuss the shielding effects of lossy dielectric materials located in front of the human body. Using the Method of Moment, we investigate the shielding effects by calculating the `whole average SAR´ and `local SAR´ for a three layered elliptical model of the human body, which simulated the skin, fat and muscle tissues. Two dielectric shield constants at a high frequency range of 1.3 GHz are selected for the shielding investigation and the results are presented for several thickness and gap values (between the human model and shield). This paper presents an interesting viewpoint on the high frequency shielding properties of these materials, and implementations for protecting the human body from possibly damaging electromagnetic effects.

Keywords

Biological materials; Biological system modeling; Dielectric constant; Dielectric losses; Dielectric materials; Frequency; Humans; Moment methods; Muscles; Skin;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1997. 27th European

Conference_Location

Jerusalem, Israel

Type

conf

DOI

10.1109/EUMA.1997.337865

Filename

4138906