地下ELF线天线在地-电离层壳体中产生的场
Fields Excited by the ELF Underground Linear Antenna in Earth-Ionosphere Cavity
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摘要: 为了研究地震产生的机理,需要分析和研究地下任意ELF线天线在地-电离层壳体中产生的电磁场。地下任意ELF线天线产生的电磁场可由地下ELF点源产生的电磁场进行叠加。首先导出了地下ELF点源在地-电离层壳体中产生的电磁场表达式,然后得到了地下任意ELF线天线在地-电离层壳体中产生的电磁场的表达式。分别讨论了地下单条和两条ELF线天线在地面上产生电磁场的场强空间分布图,用色标表示了场强值在空间分布的强弱。电磁场的水平分量在地面上产生电磁场的场强值要比垂直分量产生的场强值大,单条线天线在地面上产生电磁场的场强值要比两条线天线产生的场强值小。Abstract: To study the mechanism of the earthquake production,the electromagnetic fields excited by the ELF underground linear antenna in earth-ionosphere cavity need be analyzed and studied.The electromagnetic fields excited by the ELF underground arbitrary linear antenna may be the sum of the electromagnetic fields excited by the ELF underground point source.The expressions of electromagnetic fields excited by the ELF underground point source in earth-ionosphere cavity have firstly been derived,and then the express...