SA and SAR Analysis for Wearable UWB Body Area Applications

Qiong WANG; Jianqing WANG

doi:10.1587/transcom.E92.B.425

SA and SAR Analysis for Wearable UWB Body Area Applications

Qiong WANG, Jianqing WANG

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With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. Although the signal from a single UWB device is very low, the energy absorption may increase significantly when many UWB devices are simultaneously adorned to a human body. An analysis method is therefore required from the point of view of biological safety evaluation. In this study, two approaches, one is in the time domain and the other is in the frequency domain, are proposed for the specific energy absorption (SA) and the specific absorption rate (SAR) calculation. It is shown that the two approaches have the same accuracy but the time-domain approach is more straightforward in the numerical analysis. By using the time-domain approach, SA and SAR calculation results are given for multiple UWB pulse exposure to an anatomical human body model under the Federal Communications Commission (FCC) UWB limit.

Publication: IEICE TRANSACTIONS on Communications Vol.E92-B No.2 pp.425-430

Publication Date: 2009/02/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E92.B.425

Type of Manuscript: Special Section PAPER (Special Section on Medical Information and Communications Technologies)

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Qiong WANG, Jianqing WANG, "SA and SAR Analysis for Wearable UWB Body Area Applications" in IEICE TRANSACTIONS on Communications, vol. E92-B, no. 2, pp. 425-430, February 2009, doi: 10.1587/transcom.E92.B.425.
Abstract: With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. Although the signal from a single UWB device is very low, the energy absorption may increase significantly when many UWB devices are simultaneously adorned to a human body. An analysis method is therefore required from the point of view of biological safety evaluation. In this study, two approaches, one is in the time domain and the other is in the frequency domain, are proposed for the specific energy absorption (SA) and the specific absorption rate (SAR) calculation. It is shown that the two approaches have the same accuracy but the time-domain approach is more straightforward in the numerical analysis. By using the time-domain approach, SA and SAR calculation results are given for multiple UWB pulse exposure to an anatomical human body model under the Federal Communications Commission (FCC) UWB limit.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.425/_p

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@ARTICLE{e92-b_2_425,
author={Qiong WANG, Jianqing WANG, },
journal={IEICE TRANSACTIONS on Communications},
title={SA and SAR Analysis for Wearable UWB Body Area Applications},
year={2009},
volume={E92-B},
number={2},
pages={425-430},
abstract={With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. Although the signal from a single UWB device is very low, the energy absorption may increase significantly when many UWB devices are simultaneously adorned to a human body. An analysis method is therefore required from the point of view of biological safety evaluation. In this study, two approaches, one is in the time domain and the other is in the frequency domain, are proposed for the specific energy absorption (SA) and the specific absorption rate (SAR) calculation. It is shown that the two approaches have the same accuracy but the time-domain approach is more straightforward in the numerical analysis. By using the time-domain approach, SA and SAR calculation results are given for multiple UWB pulse exposure to an anatomical human body model under the Federal Communications Commission (FCC) UWB limit.},
keywords={},
doi={10.1587/transcom.E92.B.425},
ISSN={1745-1345},
month={February},}

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TY - JOUR
TI - SA and SAR Analysis for Wearable UWB Body Area Applications
T2 - IEICE TRANSACTIONS on Communications
SP - 425
EP - 430
AU - Qiong WANG
AU - Jianqing WANG
PY - 2009
DO - 10.1587/transcom.E92.B.425
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2009
AB - With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. Although the signal from a single UWB device is very low, the energy absorption may increase significantly when many UWB devices are simultaneously adorned to a human body. An analysis method is therefore required from the point of view of biological safety evaluation. In this study, two approaches, one is in the time domain and the other is in the frequency domain, are proposed for the specific energy absorption (SA) and the specific absorption rate (SAR) calculation. It is shown that the two approaches have the same accuracy but the time-domain approach is more straightforward in the numerical analysis. By using the time-domain approach, SA and SAR calculation results are given for multiple UWB pulse exposure to an anatomical human body model under the Federal Communications Commission (FCC) UWB limit.
ER -