Analysis of wave propagation in circular tunnel using BOR-FDTD method

Author

Bin, Chen ; Hailin, Chen ; Bihua, Zhou

Author_Institution

EMC Lab., Nanjing Eng. Inst., China

Volume

1

fYear

2005

Firstpage

108

Abstract

In this paper, a body of revolution finite-difference time-domain method is introduced that is applicable to lossy structures with axial symmetry like circular tunnels. This method allows us to reduce a computationally intractable, three-dimensional problem to a numerically solvable two-dimensional one. And the wave attenuation in circular tunnel is calculated for the TE₀₁ and TM₀₁ modes, also for both values of conductivity and permittivity of tunnel walls.

Keywords

axial symmetry; finite difference time-domain analysis; radiowave propagation; tunnels; FDTD method; axial symmetry; body of revolution finite-difference time-domain method; circular tunnel wave propagation; computationally intractable problem reduction; three-dimensional problem; tunnel walls; Attenuation; Computational efficiency; Conductivity; Electromagnetic compatibility; Electromagnetic waveguides; Finite difference methods; Frequency; Maxwell equations; Permittivity; Time domain analysis; Attenuation; Body of revolution; Circular waveguide; Finite-difference time-domain(FDTD);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on

Print_ISBN

0-7803-9128-4

Type

conf

DOI

10.1109/MAPE.2005.1617859

Filename

1617859