| Paper Abstract and Keywords |
| Presentation |
2005-04-22 13:30
Three-Dimensional Hybrid Analysis of the SAR in Human Body for Base-Station Antennas
Masayuki Komatsu, Jianqing Wang, Osamu Fujiwara (Nagoya Inst. of Tech.), Yoshiaki Tarusawa, Shinji Uebayashi (NTT DoCoMo) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this study we have established an effective technique for dosimetric analyses of base-station antennas in an underground environment. The technique combined the ray-tracing method and the finite-difference time-domain (FDTD) method for the SAR calculation in human bodies. The ray-tracing method was applied to evaluating the incident fields to the exposed subject in a three-dimensional space, while the FDTD method was used to calculate the detailed SAR distributions in the human body. A scenario under an underground passage with the installation of a top loaded monopole antenna was analyzed to highlight the effectiveness of the hybrid technique together with the difference in SAR distributions from the uniform plane-wave exposure. The results showed lower whole-body averaged and peak SARs in comparison with a uniform plane-wave exposure with the same intensity of spatially averaged electric field. As for the SAR level due to the present base-station antenna, it should be much lower than the basic safety guidelines in view of the actual outputs of base-station antennas being installed in underground or indoor environments. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Base-station antenna / SAR / ray tracing method / FDTD method / safety evaluation / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 31, EMCJ2005-2, pp. 7-12, April 2005. |
| Paper # |
EMCJ2005-2 |
| Date of Issue |
2005-04-15 (EMCJ) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
EMCJ |
| Conference Date |
2005-04-22 - 2005-04-22 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Shonan Campus, Tokai University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
EMCJ |
| Conference Code |
2005-04-EMCJ |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Three-Dimensional Hybrid Analysis of the SAR in Human Body for Base-Station Antennas |
| Sub Title (in English) |
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| Keyword(1) |
Base-station antenna |
| Keyword(2) |
SAR |
| Keyword(3) |
ray tracing method |
| Keyword(4) |
FDTD method |
| Keyword(5) |
safety evaluation |
| Keyword(6) |
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| 1st Author's Name |
Masayuki Komatsu |
| 1st Author's Affiliation |
Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 2nd Author's Name |
Jianqing Wang |
| 2nd Author's Affiliation |
Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 3rd Author's Name |
Osamu Fujiwara |
| 3rd Author's Affiliation |
Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 4th Author's Name |
Yoshiaki Tarusawa |
| 4th Author's Affiliation |
NTT DoCoMo Inc. (NTT DoCoMo) |
| 5th Author's Name |
Shinji Uebayashi |
| 5th Author's Affiliation |
NTT DoCoMo Inc. (NTT DoCoMo) |
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| Speaker |
Author-1 |
| Date Time |
2005-04-22 13:30:00 |
| Presentation Time |
25 minutes |
| Registration for |
EMCJ |
| Paper # |
EMCJ2005-2 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.31 |
| Page |
pp.7-12 |
| #Pages |
6 |
| Date of Issue |
2005-04-15 (EMCJ) |