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Electromagnetic Wave Excitation in a Two-Dimensional Tunnel by Waveguide Modes

Kazunori UCHIDA, Toshiaki MATSUNAGA, Kuniaki YOSHIDOMI, Kazuo AOKI

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Summary :

This paper presents a rigorous Wiener-Hopf solution to the electromagnetic wave exitation by a waveguide mode, concerning a two-dimensional tunnel which might be the most simplified model of a rectangular tunnel. Surface impedance boundaries are assumed on the walls of tunnels surrounded by lossy dielectric materials, such as concrete, rock and others. A microwave simulation is also performed to determine whether the assumption used in the theory is good or not. From comparison of experimental results with theoretical ones, it is shown that the surface impedance model is an excellent approximation especially for tunnels of which dimensions are not so large compared with the wave length in the free space.

Publication
IEICE TRANSACTIONS on transactions Vol.E68-E No.3 pp.159-165
Publication Date
1985/03/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Antenna and Propagation

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