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1·The analytical expressions of electromagnetic fields of a vertical electric dipole (VED) over a spherical conductor covered by a dielectric layer have been developed in this paper.

利用解析方法导出了垂直电偶极子在涂覆有介质层的球形导电基底上产生的电磁场的解析表达式。

2·In this paper, the simple analytical expressions of the electromagnetic field induced by a vertical electric dipole on the perfect conductor coated with a layer of dielectric medium has teen obtained.

分析研究了垂直电偶极子在介质涂敷的理想导电平面上激起的电磁场，获得了场分量的解析表达式。

3·The analytical expressions of the electromagnetic field generated by the DC electric dipole in the upper space for the two-layer mode were obtained by using the method of mirror image.

将任意分布的电流源产生的电磁场看作是电偶极子产生的电磁场的叠加，利用镜像法推导了上半空间中的垂直直流电偶极子在两层媒质中产生电磁场的解析解。