Paper Abstract and Keywords |
Presentation |
2023-01-27 11:50
Estimation of Absorbed Power Density Using Geometric Optics Approximation Yuta Akutsu (Tokyo Univ. of Agriculture and Tech), Yujiro Kushiyama (NICT), Takuji Arima, Toru Uno (Tokyo Univ. of Agriculture and Tech), Tomoaki Nagaoka (NICT) EMCJ2022-80 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The International Commission on Non-Ionizing Radiation Protection (ICNIRP) revised the international guidelines for radioactivity protection in 2020, which adopted the absorbed power density as the basic limit for local exposure to frequencies above 6 GHz. The FDTD method (Finite-difference time-domain method) requires a large computational environment to estimate the radio wave exposure (absorbed power density) in the 28 GHz band used in the 5th generation mobile communication system (5G). In order to apply the geometric-optics approximation method, which requires fewer computational resources than the FDTD method by using a high-frequency approximation, to the estimation of absorbed power density, we compared the estimation accuracy of the geometric-optics approximation method with the FDTD method using spherical and numerical human body models, and investigated the effectiveness of the geometric-optics approximation method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
human exposure / absorbed power density(APD) / Geometric Optics / FDTD method / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 372, EMCJ2022-80, pp. 45-49, Jan. 2023. |
Paper # |
EMCJ2022-80 |
Date of Issue |
2023-01-20 (EMCJ) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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EMCJ2022-80 |
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