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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >Comparison and evaluation of electromagnetic absorption characteristics in realistic human head models of adult and children for 900-MHz mobile telephones
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Comparison and evaluation of electromagnetic absorption characteristics in realistic human head models of adult and children for 900-MHz mobile telephones

机译:900 MHz移动电话在成人和儿童的逼真的人体头部模型中电磁吸收特性的比较和评估

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摘要

The controversy on the dosimetry in children's heads for mobile telephones is still inconsistent. Gandhi's group [1996, 2002] reported a considerable increase of the spatial peak specific absorption rate (SAR) in children's heads, while Kuster's group [1998] claimed that there was not a significant difference in the SAR between children and adults. In this paper, based on Japanese children's statistical data on external shapes of heads, we developed two kinds of children's models from a Japanese adult head model. Using the children's head models, we calculated the local peak SAR under the same conditions as those previously employed by Gandhi's and Kuster's groups. Compared to the local peak SAR in the adult head model, we found a considerable increase in the children's heads when we fixed the output power of the monopole-type antenna, but no significant differences when we fixed the effective current of the dipole-type antenna. This finding suggests that the contradictory conclusions drawn by the above two groups may be due to the different conditions in their numerical peak SAR calculations.
机译:关于手机儿童头部剂量学的争议仍然不一致。 Gandhi的小组[1996,2002]报告说,儿童头部的空间峰值比吸收率(SAR)显着增加,而Kuster的小组[1998]则认为,儿童与成人之间的SAR并无显着差异。本文根据日本儿童对头部外形的统计数据,从日本成人头部模型中开发出两种儿童模型。使用儿童的头部模型,我们在与甘地和库斯特小组先前采用的相同条件下计算了局部峰值SAR。与成人头部模型中的局部峰值SAR相比,固定单极型天线的输出功率时发现儿童的头部有相当大的增加,而固定偶极型天线的有效电流时则无显着差异。这一发现表明,以上两组得出的矛盾结论可能是由于它们的峰值SAR计算中的条件不同。

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