中文摘要：

井下电磁信号传输是无线通信技术的难点之一.为提高井下无线通信质量,通过对矿井无线通信系统的研究分析,根据在井下无线通信频率范围和实际环境,研究分析不同频段电磁信号在矩形直巷道、拱形直巷道和梯形直巷道里的电磁信号路径传输损耗模型,通过HFSS软件仿真分析频率、横截面、电导率、介电常数等参数对电磁信号传输的影响,为井下无线节点布置提供依据.经过仿真得出,拱形巷道电磁信号传播损耗小,适合井下无线传感器网络的应用.

英文摘要：

Underground electromagnetic signal transmission is one of the difficulties of the wireless communication technology. In order to improve the quality of underground wireless communication, through the research on wireless communication system, and according to the underground wireless communication frequency range and the actual environment, different frequency electromagnetic signals are studied and analyzed in electromagnetic signal transmission path loss model of rectangular straight roadway, straight arch roadway and trapezoid roadway. The influence of electromagnetic signal transmission is analyzed from the aspects of frequency, cross section, conductivity, dielectric constant through HFSS. This research would provide the basis for wireless sensor network（WSN） node arrangement. Through stimulation, the electromagnetic signal propagation loss is smaller than those of other shapes in straight arch roadway, and it fits for WSN.