Title :
The effect of the wall roughness on the electromagnetic wave propagation in coal mine underground
Author :
Xu, Zhao ; Huo, Yu ; Zheng, Hong-dang
Author_Institution :
Sch. of Inf. & Electr. Eng., China Univ. of Min. & Technol., Xuzhou
Abstract :
The effect of the wall roughness on the electromagnetic wave propagation in a rectangular tunnel of the coal mine underground is the concern of this paper. Also, the attenuation equation of the multi-mode propagation due to roughness is educed. The results of the simulations illustrate that the loss due to a typical wall roughness for mine tunnels increases with frequency. Because of the effect of the waveguides and the wall roughness in coal mine tunnels, there is a relatively good frequency group of the electromagnetic wave that propagates with low attenuation.
Keywords :
electromagnetic wave propagation; electromagnetic wave scattering; mining; tunnels; attenuation equation; coal mine underground; electromagnetic wave propagation; mine tunnels; multimode propagation; wall roughness; Attenuation; Dielectric losses; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Equations; Frequency; Rectangular waveguides; Waveguide theory; attenuation equation; electromagnetic wave propagation; multi-mode; wall roughness;
Conference_Titel :
Knowledge Acquisition and Modeling Workshop, 2008. KAM Workshop 2008. IEEE International Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3530-2
Electronic_ISBN :
978-1-4244-3531-9
DOI :
10.1109/KAMW.2008.4810529
