A study on the transmission efficiency of electromagnetic wave propagation in tunnels with bend and fold

굴곡 및 굴절형 터널 내의 전파 전파의 전송 효율에 관한 연구

This paper is concenred with a finite volume time domain (FVTD) method for the analyses of transmission efficiency of electromagnetic wave propagation in tunnels with bend and fold. This method is gased on the volume integratio sof the maxwell's equation with respected to arbitrary shaped small polyhedron cells. The advantages of the present mehtod are that the algorithm is very simple since the coordinate system is restricted only to the cartesian, and so the arbitrary shaped boundaries can easily be dealt with since the fields at every center point of the cells are assigned in an average fashion.