| Presentation | 2018-12-14 A Study on Reducing Measurement Time for Assessment of Cellular Phones using Fast SAR Measurement Procedure Yuto Shimizu, Tomoaki Nagaoka, Nozomu Ishii, Soichi Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A specific absorption rate (SAR) is used for an assessment of a human exposure from wireless communication devices. Current conformity assessment procedure, which is called as full SAR measurement, evaluates the SARs in all available frequency bands and device conditions. However, it takes a lot of times to measure the SARs with the full SAR measurement. Thus, IEC62209-1 provides a fast SAR measurement procedure to reduce a measurement time. In this study, we evaluate peak spatial SARs of four mobile phones with fast SAR measurement procedure. From these results, the maximum relative deviation compared with the full SAR measurement results was observed 16.0%, which is in range of the expanded measurement uncertainty of 17.8% in this measurement. In addition, the time reduction accomplished more than 25% comparing the time of the full SAR measurement. Moreover, considering the realistic measurement environment, i.e., the setting position of the mobile phone, the time reduction was only 5% degradation compared to before consideration the realistic environment. These results confirm the effectiveness of the fast SAR measurement procedure in realistic measurement environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | human exposure assessment / SAR / mobile phones / fast SAR measurement procedure |
| Paper # | EMCJ2018-96 |
| Date of Issue | 2018-12-07 (EMCJ) |
| Conference Information | |
| Committee | EMCJ / IEE-EMC |
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| Conference Date | 2018/12/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Osami Wada(Kyoto Univ.) / Ken-ichi Yamazaki(Central Research Institute of Electric Power Industory) |
| Vice Chair | Kensei Oh(Nagoya Inst. of Tech.) |
| Secretary | Kensei Oh(Tokyo Inst. of Tech.) / (Mitsubishi Electric) |
| Assistant | Shinobu Nagasawa(Mitsubishi Electric) / Shinichiro Yamamoto(Univ. of Hyogo) / Takanori Unou(Denso) / Takaaki Ibuchi(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Reducing Measurement Time for Assessment of Cellular Phones using Fast SAR Measurement Procedure |
| Sub Title (in English) | |
| Keyword(1) | human exposure assessment |
| Keyword(2) | SAR |
| Keyword(3) | mobile phones |
| Keyword(4) | fast SAR measurement procedure |
| 1st Author's Name | Yuto Shimizu |
| 1st Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 2nd Author's Name | Tomoaki Nagaoka |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 3rd Author's Name | Nozomu Ishii |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology/Niigata University(NICT/Niigata Univ.) |
| 4th Author's Name | Soichi Watanabe |
| 4th Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| Date | 2018-12-14 |
| Paper # | EMCJ2018-96 |
| Volume (vol) | vol.118 |
| Number (no) | EMCJ-363 |
| Page | pp.pp.75-80(EMCJ), |
| #Pages | 6 |
| Date of Issue | 2018-12-07 (EMCJ) |