The Test Phantom for the Cochlear Implant to Estimate EMI from Cellular Phone

Yoshiaki TARUSAWA; Kohjiroh OHSHITA; Toshio NOJIMA

doi:10.1093/ietcom/e88-b.8.3275

The Test Phantom for the Cochlear Implant to Estimate EMI from Cellular Phone

Yoshiaki TARUSAWA, Kohjiroh OHSHITA, Toshio NOJIMA

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This paper proposes the test phantom for the cochlear implant to estimate electromagnetic interference (EMI) from a cellular phone. This test phantom is constructed from a square tank filled with saline solution. The use of a flat phantom provides a level of consistency in duplicating the exposure conditions in the EMI tests. The measurement and calculation results show that there is no difference in the E-field strength near the surface of the phantom when comparing flat and head-shaped phantoms and that the flat phantom is sufficiently thick to disregard the influence of reflective waves near the surface of the phantom. The calculation results also indicate the appropriateness of using physiological saline (0.18 g/l) up to 3 GHz when comparing the E-field strength inside a phantom comprising physiological saline and in a 2/3 muscle model. The results of actual EMI testing of a cochlear implant show that there is no difference in the maximum interference distance when using either the flat or head-shaped phantom. Based on these results, this paper presents the validity of using the flat phantom in EMI tests from cellular phone for the cochlear implant.

Publication: IEICE TRANSACTIONS on Communications Vol.E88-B No.8 pp.3275-3280

Publication Date: 2005/08/01

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DOI: 10.1093/ietcom/e88-b.8.3275

Type of Manuscript: Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)

Category: Biological Effects

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Yoshiaki TARUSAWA, Kohjiroh OHSHITA, Toshio NOJIMA, "The Test Phantom for the Cochlear Implant to Estimate EMI from Cellular Phone" in IEICE TRANSACTIONS on Communications, vol. E88-B, no. 8, pp. 3275-3280, August 2005, doi: 10.1093/ietcom/e88-b.8.3275.
Abstract: This paper proposes the test phantom for the cochlear implant to estimate electromagnetic interference (EMI) from a cellular phone. This test phantom is constructed from a square tank filled with saline solution. The use of a flat phantom provides a level of consistency in duplicating the exposure conditions in the EMI tests. The measurement and calculation results show that there is no difference in the E-field strength near the surface of the phantom when comparing flat and head-shaped phantoms and that the flat phantom is sufficiently thick to disregard the influence of reflective waves near the surface of the phantom. The calculation results also indicate the appropriateness of using physiological saline (0.18 g/l) up to 3 GHz when comparing the E-field strength inside a phantom comprising physiological saline and in a 2/3 muscle model. The results of actual EMI testing of a cochlear implant show that there is no difference in the maximum interference distance when using either the flat or head-shaped phantom. Based on these results, this paper presents the validity of using the flat phantom in EMI tests from cellular phone for the cochlear implant.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.8.3275/_p

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@ARTICLE{e88-b_8_3275,
author={Yoshiaki TARUSAWA, Kohjiroh OHSHITA, Toshio NOJIMA, },
journal={IEICE TRANSACTIONS on Communications},
title={The Test Phantom for the Cochlear Implant to Estimate EMI from Cellular Phone},
year={2005},
volume={E88-B},
number={8},
pages={3275-3280},
abstract={This paper proposes the test phantom for the cochlear implant to estimate electromagnetic interference (EMI) from a cellular phone. This test phantom is constructed from a square tank filled with saline solution. The use of a flat phantom provides a level of consistency in duplicating the exposure conditions in the EMI tests. The measurement and calculation results show that there is no difference in the E-field strength near the surface of the phantom when comparing flat and head-shaped phantoms and that the flat phantom is sufficiently thick to disregard the influence of reflective waves near the surface of the phantom. The calculation results also indicate the appropriateness of using physiological saline (0.18 g/l) up to 3 GHz when comparing the E-field strength inside a phantom comprising physiological saline and in a 2/3 muscle model. The results of actual EMI testing of a cochlear implant show that there is no difference in the maximum interference distance when using either the flat or head-shaped phantom. Based on these results, this paper presents the validity of using the flat phantom in EMI tests from cellular phone for the cochlear implant.},
keywords={},
doi={10.1093/ietcom/e88-b.8.3275},
ISSN={},
month={August},}

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TY - JOUR
TI - The Test Phantom for the Cochlear Implant to Estimate EMI from Cellular Phone
T2 - IEICE TRANSACTIONS on Communications
SP - 3275
EP - 3280
AU - Yoshiaki TARUSAWA
AU - Kohjiroh OHSHITA
AU - Toshio NOJIMA
PY - 2005
DO - 10.1093/ietcom/e88-b.8.3275
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2005
AB - This paper proposes the test phantom for the cochlear implant to estimate electromagnetic interference (EMI) from a cellular phone. This test phantom is constructed from a square tank filled with saline solution. The use of a flat phantom provides a level of consistency in duplicating the exposure conditions in the EMI tests. The measurement and calculation results show that there is no difference in the E-field strength near the surface of the phantom when comparing flat and head-shaped phantoms and that the flat phantom is sufficiently thick to disregard the influence of reflective waves near the surface of the phantom. The calculation results also indicate the appropriateness of using physiological saline (0.18 g/l) up to 3 GHz when comparing the E-field strength inside a phantom comprising physiological saline and in a 2/3 muscle model. The results of actual EMI testing of a cochlear implant show that there is no difference in the maximum interference distance when using either the flat or head-shaped phantom. Based on these results, this paper presents the validity of using the flat phantom in EMI tests from cellular phone for the cochlear implant.
ER -