Analysis of electromagnetic compatibility characteristics of mobile communication and wireless LAN in buildings by 3-D FDTD method

摘要

The radio communication systems such as cellular phones and wireless LAN systems have been developed rapidly in the recent years, and accordingly the electromagnetic compatibility characteristics in buildings is paid more attention in the world. In particular, multi-path fading due to various indoor environment causes delay and interference. Understanding of propagation characteristics of radio communication waves is necessary to design high performance communication systems. Ray-tracing method is mainly applied for the analysis of indoor propagation channels. However, for the analysis of complex indoor environments, ray-tracing approach can not give sufficient accuracy. In this paper, FDTD method is applied to show the electromagnetic compatibility characteristics in buildings. Results are compared with that of 2-D FDTD method for investigating of the effect of ceiling and flore of the building.