FVTD Analysis of Electromagnetic Wave Propagation in Two Dimensional Tunnels

Abstract

This paper is concerned with a finite volume time domain (FVTD) method for electromagnetic wave propagetion in two dimensional tunnels. This method is based on the volume integrations of the Maxwell's eqations with respect to small rectangular solid cell. The electromagnetic fields in the rectangular solid cell are expressed in terms of the tangential electromagnetic fields on its surfaces, which are interpolatedby the former fields of the adjacent two cells. It is possible to solved the boundary value problem of arbitary shape which contains an inhomogeneous medium. It is found that numerical and experimental results are in good agreement regarding the electric field intensities in the tunnel.