Siervo Beatrice, Morelli Maria Sole, Landini Luigi, Hartwig Valentina
Department of Information Engineering, University of Pisa, Pisa, Italy.
Research Center "E. Piaggio," School of Engineering, University of Pisa, Pisa, Italy.
Bioelectromagnetics. 2018 Jul;39(5):414-422. doi: 10.1002/bem.22128. Epub 2018 Apr 30.
The use of wireless communication devices, such as tablets or laptops, is increasing among children. Only a few studies assess specific energy absorption rate (SAR) due to exposure from wireless-enabled tablets and laptops, in particular with Worldwide Interoperability for Microwave Access (WiMax) technology. This paper reports the estimation of the interaction between an E-shaped patch antenna (3.5 GHz) and human models, by means of finite-difference time-domain (FDTD) method. Specifically, four different human models (young adult male, young adult female, pre-teenager female, male child) in different exposure conditions (antenna at different distances from the human model, in different positions, and orientations) were considered and whole-body, 10 and 1 g local SAR and magnetic field value (Bmax) were evaluated. From our results, in some worst-case scenarios involving male and female children's exposure, the maximum radiofrequency energy absorption (hot spots) is located in more sensitive organs such as eye, genitals, and breast. Bioelectromagnetics. 39:414-422, 2018. © 2018 Wiley Periodicals, Inc.
平板电脑或笔记本电脑等无线通信设备在儿童中的使用正在增加。只有少数研究评估了启用无线功能的平板电脑和笔记本电脑，特别是采用全球微波接入互操作性（WiMax）技术时，所产生的特定能量吸收率（SAR）。本文报告了通过时域有限差分（FDTD）方法对E形贴片天线（3.5 GHz）与人体模型之间相互作用的估计。具体而言，考虑了四种不同的人体模型（年轻成年男性、年轻成年女性、青少年女性、男童）在不同暴露条件下（天线与人体模型的距离不同、位置和方向不同）的情况，并评估了全身、10 g和1 g局部SAR以及磁场值（Bmax）。根据我们的结果，在一些涉及男童和女童暴露的最坏情况下，最大射频能量吸收（热点）位于眼睛、生殖器和乳房等更敏感的器官中。《生物电磁学》。2018年，第39卷，第414 - 422页。© 2018威利期刊公司。
