Title :
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
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;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.863532
