Title :
Theory of the propagation of electromagnetic waves in a railway tunnel
Author :
Zhang, Y.P. ; Hwang, Y.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
A imperfect periodically loaded waveguide model is proposed to study the propagation of electromagnetic waves in a railway tunnel. The surface impedance approximation is used to simplify the analysis. A closed-form formula for the TSM/sub q,m0/ modes is obtained. The numerical results are presented for the dominant TSM/sub 1,10/ mode.
Keywords :
approximation theory; electric impedance; electromagnetic wave propagation; railways; waveguide theory; closed-form formula; electromagnetic wave propagation; imperfect periodically loaded waveguide model; railway tunnel; surface impedance approximation; Cutoff frequency; Electromagnetic modeling; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Load modeling; Loaded waveguides; Rail transportation; Railway engineering; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549819
