@article{oai:niigata-u.repo.nii.ac.jp:00001715, author = {Yamaguchi, Y. and Honda, T. and Sengoku, M.}, issue = {1}, journal = {IEEE Transactions on Electromagnetic Compatibility, IEEE Transactions on Electromagnetic Compatibility}, month = {Feb}, note = {The reduction of radio wave attenuation in rectangular tunnels is discussed. The attenuation of the dominant mode due to its field penetration into a lossy dielectric wall is reduced by means of the attachment of wire netting (mesh). First, a reflection coefficient from a mesh screen over a lossy surface is analytically evaluated. Then, based on a geometrical optical approach to the propagation model in tunnels, the attenuation of the dominant mode in a rectangular tunnel is derived using the reflection coefficient. The calculated attenuation constants are in good agreement with experimental ones obtained in a laboratory. Finally, the efficiency of attenuation reduction rate by the mesh shielding method is summarized as a function of spatial ratio of the mesh wire interval divided by the wavelength. It is shown that the efficiency of reduction rate by mesh is significant}, pages = {88--93}, title = {Reduction of wave propagation loss by mesh in rectangular tunnels}, volume = {37}, year = {1995} }