Wireless Electromagnetic Radiation Assessment Based on the Specific Absorption Rate (SAR): A Review Case Study
Wireless Electromagnetic Radiation Assessment Based on the Specific Absorption Rate (SAR): A Review Case Study
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DOI：
10.3390/electronics11040511
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发表时间：
2022-02-01
期刊：
影响因子：
2.9
通讯作者：
Abd-Alhameed, Raed A.
中科院分区：
文献类型：
--
作者：
Abdul-Al, Mohamed;Amar, Ahmed S. I.;Abd-Alhameed, Raed A.
在新的无线通信和传感技术中使用电磁场（EMF）大大增加了人类暴露于EMF波的水平。本文提出了一个有用的洞察电磁场与生物介质的相互作用，是由热生成由于感应电流和介电损耗定义。比吸收率（SAR）定义了由电磁场值照射的生物介质中的加热量。本文根据各种安全标准和组织，审查了由于SAR造成的射频危害，包括对以前发表的建模和测量工作的详细调查。它还总结了1978年至2021年期间使用的最常用技术，包括工作频谱，带宽和SAR值。
Employing electromagnetic fields (EMFs) in new wireless communication and sensing technologies has substantially increased the level of human exposure to EMF waves. This paper presents a useful insight into the interaction of electromagnetic fields with biological media that is defined by the heat generation due to induced currents and dielectric loss. The specific absorption rate (SAR) defines the heating amount in a biological medium that is irradiated by an electromagnetic field value. The paper reviews the radio frequency hazards due to the SAR based on various safety standards and organisations, including a detailed investigation of previously published work in terms of modelling and measurements. It also summarises the most common techniques utilised between 1978 and 2021, in terms of the operational frequency spectrum, bandwidth, and SAR values.