FDTD analysis of induced current of PEC wire which in contact with half space lossy ground by using surface impedance boundary condition
FDTD analysis of induced current of PEC wire which in contact with half space lossy ground by using surface impedance boundary condition
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发表时间：
2013-05
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通讯作者：
T. Arima;T. Uno
中科院分区：
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作者：
T. Arima;T. Uno
近年来，电磁波得到了广泛的应用。另一方面，一小部分电磁波被人体吸收。在远场照射情况下，当电场分量与人体高度平行时，在VHF频段观察到全身共振现象。在这种现象中，在人体内观察到强烈的感应电流。感应电流的大小可能取决于接地条件。为了估计有损平地对感应电流的影响，本文用FDTD方法分析了物体与地面接触时的感应电流。利用表面阻抗边界条件对平坦的地球进行建模，以减少计算量。
In recent years, electromagnetic waves are widely used. On the other hand, a fraction of electromagnetic waves are absorbed into the human body. In the case of far filed exposure, whole body resonance phenomena are observed at VHF frequency band when the component of E-field is parallel to the human body's height. In this phenomenon intensive induced current is observed in the human body. The induced current maybe depends on earth condition. In this paper, in order to estimate an effect of lossy flat earth for induced current, the induced current of object which is in contact with earth is analyzed by the FDTD method. The flat earth is modeld by using surface impedance boundary conditions to reduce calculation resources.