摘要
把矩形隧道看作矩形波导,利用有限元法分析了矩形隧道中的金属支护立柱对电磁波截止频率的影响,并得到数值结果.金属支护立柱的存在使TE波模的截止频率降低,而使TM波模的截止频率升高,而且金属支护立柱的排数和高度对电磁波模的截止频率也有影响.
Effects of the metallic pit prop in a rectangular tunnel on the electromagnetic wave cutoff frequency is analyzed by the finite-element method when the rectangular tunnel is regarded as a rectangular waveguide, with the numerical data obtained. The metallic pit prop in the tunnel lowers the TE wave cutoff frequency and increases the TM wave cutoff frequency. Its rows and height also affects the electromagnetic wave model cutoff frequency.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2003年第4期565-568,共4页
Journal of Xidian University
关键词
矩形隧道
有限元法
金属支护立柱
电磁波
截止频率
rectangular tunnel
finite-element method
pit prop
electromagnetic wave model
cutoff frequency
