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。
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 expressions of electromagnetic fields excited by the ELF underground linear antenna have been obtained.The field intensity spatial distribution figures of the electromagnetic fields excited by the ELF underground single linear antenna and two linear antennas have been separately discussed.The pattern of the field intensity values in the spatial distribution are expressed by the color code.The field intensity values of the electromagnetic fields produced by the horizontal components on the ground are bigger than those produced by the vertical component.The field intensity values of the electromagnetic fields produced by the single linear antenna on the ground are smaller than those produced by two linear antennas.
出处
《微波学报》
CSCD
北大核心
2011年第1期26-31,共6页
Journal of Microwaves
关键词
地-电离层壳体
点源
空间分布图
色标
earth-ionosphere cavity
point source
spatial distribution figure
color code
