| Presentation | 2021-03-05 A Study of Uncertainty Evaluations for SAR Probe Calibration in Frequency Band of 5G Sub-6 Yuto Shimizu, Tomoaki Nagaoka, Nozomu Ishii, Kanako Wake, Soichi Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Nowadays, the fifth generation wireless mobile system (5G), which was released in 2020, mainly uses a frequency band from 3.6 to 4.9 GHz called sub-6. Wireless devices used near a human body are required to assess human exposure to EMF from those devices. The specific absorption rate (SAR) is used for an assessment of a human exposure to EMF from cellular phones in frequency band form 700 MHz to 6 GHz. The SAR probe which is one of the electric field sensor is used for SAR measurement, but before measurement, probe calibration should be performed to relate the received electric field to the output voltage of the SAR probe. In addition, the uncertainty evaluation is necessary to guarantee the calibration result. We had performed the SAR probe calibration and the uncertainty evaluation in the frequency band from 700 MHz to 3.5 GHz used for fourth generation wireless mobile system (4G). In this study, we evaluated the probe calibration uncertainty in the frequency band of 5G sub-6. Additionally, we found dominant uncertainty sources of the probe calibration and compared the uncertainty budget of 5G sub-6 with that of 4G. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | human exposure assessment / SAR measurement / probe calibration / uncertainty evaluation |
| Paper # | EMCJ2020-75 |
| Date of Issue | 2021-02-26 (EMCJ) |
| Conference Information | |
| Committee | EMCJ / MICT |
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| Conference Date | 2021/3/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kensei Oh(Nagoya Inst. of Tech.) / Eisuke Hanada(Saga Univ.) |
| Vice Chair | Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Hirokazu Tanaka(Hiroshima City Univ.) / Daisuke Anzai(Nagoya Inst. of Tech.) |
| Secretary | Atsuhiro Nishikata(Denso) / Hirokazu Tanaka(NAIST) / Daisuke Anzai(Kobe Univ.) |
| Assistant | Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin EMC Engineering) / Sho Muroga(Akita Univ.) / Keita Saku(Kyushu Univ.) / Kai Ishida(KISTEC) / Kento Takabayashi(Okayama Pref. Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / Technical Committee on Healthcare and Medical Information Communication Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Uncertainty Evaluations for SAR Probe Calibration in Frequency Band of 5G Sub-6 |
| Sub Title (in English) | |
| Keyword(1) | human exposure assessment |
| Keyword(2) | SAR measurement |
| Keyword(3) | probe calibration |
| Keyword(4) | uncertainty evaluation |
| 1st Author's Name | Yuto Shimizu |
| 1st Author's Affiliation | NICT(NICT) |
| 2nd Author's Name | Tomoaki Nagaoka |
| 2nd Author's Affiliation | NICT(NICT) |
| 3rd Author's Name | Nozomu Ishii |
| 3rd Author's Affiliation | NICT(NICT) |
| 4th Author's Name | Kanako Wake |
| 4th Author's Affiliation | NICT(NICT) |
| 5th Author's Name | Soichi Watanabe |
| 5th Author's Affiliation | NICT(NICT) |
| Date | 2021-03-05 |
| Paper # | EMCJ2020-75 |
| Volume (vol) | vol.120 |
| Number (no) | EMCJ-420 |
| Page | pp.pp.17-21(EMCJ), |
| #Pages | 5 |
| Date of Issue | 2021-02-26 (EMCJ) |