ABSTRACT In this paper, the electromagnetic fields of a horizontal infinitely long wire source buried in a three-layered medium are studied. The source and the observation points are located in the middle region. The expressions of the electromagnetic waves are more complex because of the multiple reflections from the up and down boundaries. The electromagnetic field components between the two boundaries are given, and the trapped surface waves and lateral waves along the two boundaries are computed. The analysis and computations have some practical applications in the line sources buried in the earth or cements.

中文翻译：

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埋在三层介质中的水平无限长导线的电磁场

摘要 本文研究了埋在三层介质中的水平无限长线源的电磁场。源点和观测点位于中间区域。由于上下边界的多次反射，电磁波的表达式更加复杂。给出了两个边界之间的电磁场分量，并计算了沿两个边界捕获的表面波和横向波。该分析和计算对于埋在地下或水泥中的线源具有一定的实际应用价值。