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首页> 外文会议>Electromagnetic Compatibility, 2000. IEEE International Symposium on >Analytical and experimental study of the EM/biological tissuesinteraction at 1900 MHz
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Analytical and experimental study of the EM/biological tissuesinteraction at 1900 MHz

机译：EM /生物组织的分析和实验研究1900 MHz的相互作用

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The problem of the interaction between a human head model and aradio-handset at the frequency of 1900 MHz is studied, boththeoretically and experimentally. Our analysis is performed using theFDTD method. The input impedance and the radiation pattern of theradio-handset in two cases of with and without the head model arecalculated, using a simple homogeneous model. The effect of theradio-handset on the head is studied by calculation of the SAR (specificabsorption rate) in four different head models, both homogeneous andheterogeneous. A series of measurements on the input impedance and onthe radiation pattern of the radio-handset are performed to confirm thetheoretical results. Our studies indicate that the effects of thepresence of the head model are a small shift in the centre frequency ofthe radio-handset and a serious blockage of the radiation pattern towardthe head direction. In addition, while the SAR value is not sensitive tothe heterogeneity, it reduces by 5% when the neck is added to the modeland increases by the same 5% when the size of the the head modeldecreases by 10%. A comparison of the results obtained with those ofother researchers indicates that our models are reliable and can be usedin the estimation of the head handset interaction
机译：人头模型与人体模型之间的相互作用问题 研究了1900 MHz频率的无线电手机 理论上和实验上。我们的分析是使用 FDTD方法。输入阻抗和辐射方向图 带有和不带有头部模型的两种情况下的无线电听筒 使用简单的均质模型进行计算。的效果 通过计算SAR来研究头上的无线电听筒（特定 吸收率）在四个不同的头部模型中，均质的 异质。在输入阻抗和 执行无线电手机的辐射方向图以确认 理论结果。我们的研究表明， 头部模型的存在是中心频率的微小偏移 无线电听筒和辐射方向图严重阻塞 头部方向。此外，虽然SAR值对 异质性，当将颈部添加到模型中时，它降低了5％ 头部模型的尺寸增加了5％ 减少10％。比较所获得的结果与 其他研究人员表明，我们的模型是可靠的，可以使用 在头手机交互的估计中

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