Research on propagation characteristics of electromagnetic wave in tunnels with arbitrary cross sections

Author

Zhang Chang-sen ; Guo Li-fang

Author_Institution

Sch. of Comput. Sci. & Technol., Henan Polytech. Univ., Jiaozuo, China

Volume

1

fYear

2010

fDate

21-24 May 2010

Abstract

The attenuation constant has the similar calculating expression, but different coefficients in different tunnels, like circular tunnel, rectangular tunnel, arched tunnel and ellipse tunnel. An analysis of the relationship between the attenuation rate in tunnels with arbitrary cross sections is given in the paper after the equivalence of the cross section area, the effects of tunnel dimensions on the attenuation rate also be discussed. The result shows that the attenuation rate of electromagnetic wave in rectangular tunnel and ellipse tunnel can be calculated by the attenuation constant in circular tunnel, while to arched tunnel, the attenuation constant in circular tunnel only can be used at high frequency. It is consistent with the measured data in related literature. On the other hand, the conclusions are proved theoretically.

Keywords

electromagnetic wave propagation; tunnels; arbitrary cross sections; arched tunnel; attenuation constant; circular tunnel; electromagnetic wave propagation; ellipse tunnel; rectangular tunnel; Attenuation; Boundary conditions; Computer science; Dielectric constant; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Frequency; Mobile communication; Permeability; arched tunnel; attenuation constant; circular tunnel; ellipse tunnel; rectangular tunnel;

fLanguage

English

Publisher

ieee

Conference_Titel

Future Computer and Communication (ICFCC), 2010 2nd International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-5821-9

Type

conf

DOI

10.1109/ICFCC.2010.5497844

Filename

5497844