Title :
Guided mode propagation in tunnels with non-circular cross section
Author :
Mahmoud, Samir F.
Author_Institution :
EE. Dept., Kuwait Univ., Safat
Abstract :
We have presented a perturbation analysis for evaluating the characteristics of the dominant modes in uniform tunnels with cross sections that deviate from the circular shape. So, simple forms are thus obtained for the propagation parameters of the modes in these tunnels. The compact FDTD numerical method is used to assess the degree of accuracy of the proposed perturbation analysis.
Keywords :
finite difference time-domain analysis; perturbation techniques; radio networks; radiowave propagation; tunnels; FDTD numerical method; guided mode propagation; noncircular cross section; perturbation analysis; uniform tunnels; wireless communication; Attenuation; Earth; Impedance; Maxwell equations; Permittivity; Polarization; Propagation constant; Roads; Shape; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619721
