Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole

Soichi WATANABE; Masao TAKI; Yoshitsugu KAMIMURA

Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole

Soichi WATANABE, Masao TAKI, Yoshitsugu KAMIMURA

Full Text Views

0

Cite this

Summary :

The frequency characteristics of whole-body averaged specific absorption rates (SARs) in a human model exposed to a near field of an electric dipole or a magnetic dipole are calculated, using a finite-difference time-domain method. The dependences of the characteristics on the orientation of the dipole and on the distance from the source to the model are investigated. It is shown that the resonant peak of the SAR that appears in the E-polarized far-field exposure is observed only when the source is E-polarized and is located at 80cm, while the peak vanishes or is not noted when the source is located at 40cm and 20cm nor when it is H-polarized. The relationships between the whole-body averaged SARs and the incident electromagnetic field strengths are also investigated. It is suggested that the spatially-averaged value of the dominating component between the electric field and the magnetic field over the space where a human body would occupy provides a relevant measure to estimate the whole-body averaged SAR of a body in the vicinity of a small radiation source.

Publication: IEICE TRANSACTIONS on Communications Vol.E77-B No.6 pp.725-731

Publication Date: 1994/06/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Biological Effects of Electromagnetic Fields)

Category

Cite this

Copy

Soichi WATANABE, Masao TAKI, Yoshitsugu KAMIMURA, "Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole" in IEICE TRANSACTIONS on Communications, vol. E77-B, no. 6, pp. 725-731, June 1994, doi: .
Abstract: The frequency characteristics of whole-body averaged specific absorption rates (SARs) in a human model exposed to a near field of an electric dipole or a magnetic dipole are calculated, using a finite-difference time-domain method. The dependences of the characteristics on the orientation of the dipole and on the distance from the source to the model are investigated. It is shown that the resonant peak of the SAR that appears in the E-polarized far-field exposure is observed only when the source is E-polarized and is located at 80cm, while the peak vanishes or is not noted when the source is located at 40cm and 20cm nor when it is H-polarized. The relationships between the whole-body averaged SARs and the incident electromagnetic field strengths are also investigated. It is suggested that the spatially-averaged value of the dominating component between the electric field and the magnetic field over the space where a human body would occupy provides a relevant measure to estimate the whole-body averaged SAR of a body in the vicinity of a small radiation source.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e77-b_6_725/_p

Copy

@ARTICLE{e77-b_6_725,
author={Soichi WATANABE, Masao TAKI, Yoshitsugu KAMIMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole},
year={1994},
volume={E77-B},
number={6},
pages={725-731},
abstract={The frequency characteristics of whole-body averaged specific absorption rates (SARs) in a human model exposed to a near field of an electric dipole or a magnetic dipole are calculated, using a finite-difference time-domain method. The dependences of the characteristics on the orientation of the dipole and on the distance from the source to the model are investigated. It is shown that the resonant peak of the SAR that appears in the E-polarized far-field exposure is observed only when the source is E-polarized and is located at 80cm, while the peak vanishes or is not noted when the source is located at 40cm and 20cm nor when it is H-polarized. The relationships between the whole-body averaged SARs and the incident electromagnetic field strengths are also investigated. It is suggested that the spatially-averaged value of the dominating component between the electric field and the magnetic field over the space where a human body would occupy provides a relevant measure to estimate the whole-body averaged SAR of a body in the vicinity of a small radiation source.},
keywords={},
doi={},
ISSN={},
month={June},}

Copy

TY - JOUR
TI - Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole
T2 - IEICE TRANSACTIONS on Communications
SP - 725
EP - 731
AU - Soichi WATANABE
AU - Masao TAKI
AU - Yoshitsugu KAMIMURA
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E77-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 1994
AB - The frequency characteristics of whole-body averaged specific absorption rates (SARs) in a human model exposed to a near field of an electric dipole or a magnetic dipole are calculated, using a finite-difference time-domain method. The dependences of the characteristics on the orientation of the dipole and on the distance from the source to the model are investigated. It is shown that the resonant peak of the SAR that appears in the E-polarized far-field exposure is observed only when the source is E-polarized and is located at 80cm, while the peak vanishes or is not noted when the source is located at 40cm and 20cm nor when it is H-polarized. The relationships between the whole-body averaged SARs and the incident electromagnetic field strengths are also investigated. It is suggested that the spatially-averaged value of the dominating component between the electric field and the magnetic field over the space where a human body would occupy provides a relevant measure to estimate the whole-body averaged SAR of a body in the vicinity of a small radiation source.
ER -