Effect of the human tissue on EMI from a cellular telephone with a hearing aid

Author

Caputa, K. ; Stuchly, M.A. ; Skopek, M. ; Bassen, H.I. ; Kanda, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

2

fYear

2000

fDate

11-16 June 2000

Firstpage

1029

Abstract

This paper presents evaluation of EMI with a hearing aid using electromagnetic modeling and measurements, and acoustic measurements. For modeling the FDTD technique is used, and the fields around a commercial telephone are computed in free space and near a heterogeneous model of the human head. Very good agreement of computed near fields of the telephone in free space is obtained, provided that its antenna is correctly represented. Computed field levels in the ear canal correlate well with the measured acoustic interference levels.

Keywords

cellular radio; electromagnetic fields; electromagnetic interference; hearing aids; probes; telephone sets; EMI; FDTD technique; acoustic interference levels; acoustic measurements; cellular telephone; ear canal; electromagnetic measurements; electromagnetic modeling; free space; hearing aid; heterogeneous model; human tissue; Acoustic measurements; Antenna measurements; Auditory system; Electromagnetic interference; Electromagnetic measurements; Electromagnetic modeling; Finite difference methods; Humans; Telephony; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest. 2000 IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-7803-5687-X

Type

conf

DOI

10.1109/MWSYM.2000.863532

Filename

863532