Setting exposure guidelines and product safety standards for radio-frequency exposure at frequencies above 6 GHz: brief review
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Two international guidelines/standards for human protection from electromagnetic fields are on-going revision. Most attention has been paid to the revisions above 3 or 10 GHz where the new fifth generation wireless communication system will be deployed soon. The frequency of 3 or 10 GHz is the transition frequency at which the metric of the basic restriction is changed from the specific absorption rate to the power density. Rationales for the metrics above 3 or 10 GHz were not well established when the current guidelines/standards were published. In this review, we focused on three issues to be considered in the next revision of the exposure guidelines: (i) the averaging area of the power density, (ii) the transition frequency at which the metric is changed from the specific absorption rate to the power density, and (iii) the exposure averaging time. In addition, some remarks and trends on related product safety will also be reviewed and discussed briefly.
KeywordsElectromagnetic fields Standardization Human safety
The authors would like to thank Dr. Teruo Onishi (NTT DOCOMO. Inc) for his helpful comments on product safety.
This study was partly supported by the Ministry of Internal Affairs and Communications.
- 1.ICNIRP (1998) Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz). Health Phys 74:494–521Google Scholar
- 2.IEEE-C95.1 (2005) IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields, 3 kHz to 300 GHz. In: Ed. NY, USA: IEEEGoogle Scholar
- 3.Colombi D, Thors B, and Tornevik C (2015) "Implications of EMF exposure limits on output power levels for 5G devices above 6 GHz" IEEE Antennas & Wireless Propagat. Lett.14:1247–1249Google Scholar
- 16."Resolution COM6/20 " in World Radiocommunication Conference, 2015Google Scholar
- 22.Ziskin MC, Alekseev SI, Foster KR, and Balzano Q, "Tissue models for RF exposure evaluation at frequencies above 6 GHz". Bioelectromagnetics, pp. n/a-n/aGoogle Scholar
- 27.Duck FA (1990) Physical properties of tissues: a comprehensive reference book. Academic PressGoogle Scholar
- 32.IEC62209–1, "Measurement procedure for the assessment of specific absorption rate of human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Part 1: Devices used next to the ear (Frequency range of 300 MHz to 6 GHz)," ed. Geneva, 2016Google Scholar
- 33.IEC62209–2, "Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Human models, instrumentation, and procedures - Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz)," ed, 2010Google Scholar
- 34.IEC TC63170, "Measurement procedure for the evaluation of power density related to human exposure to radio frequency fields from wireless communication devices operating between 6 GHz and 100 GHz," ed, 2018 (to be published)Google Scholar
- 38.McIntosh RL, Anderson V (2010) SAR versus Sinc: what is the appropriate RF exposure metric in the range 1–10 GHz? Part II: using complex human body models. Bioelectromagnetics 31:467–478Google Scholar
- 48.Kunter FÇ, Gunduz C, and Seker SS, "Computation of SAR and temperature values in the human head due to 2G, 3G, 4G mobile wireless systems". J. Aeronautics & Space Tech., vol. 11, pp. 1–6, 2018Google Scholar
- 50.Kodera S, Gomez-Tames J, Hirata A (2018) Temperature elevation in the human brain and skin with thermoregulation during exposure to RF energy. Biomed Eng Online 17(1)Google Scholar
- 54.Reilly JP, Hirata A (2016) Low-frequency electrical dosimetry: research agenda of the IEEE international committee on electromagnetic safety. Phys Med Biol 59Google Scholar