Title :
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
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);
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1617859
