摘要
分析了地表面反射系数以及地面土壤介质的介电特性,研究了车体结构对天线辐射特性的影响,仿真得到了车体模型、地面介质、距离等因素对天线间耦合度的影响,建立了平坦地面条件下,通信车的收发天线间电磁耦合度的精确的仿真模型.经与实测数据对比分析,仿真结果与实测数据变化规律一致,最大误差16.54dB,均方差4.21dB.
This paper analyzes the reflection coefficient of the ground surface and dielectric properties of the soil,studies the vehicle structure affects the antenna radiation and gets the impacts of the vehicle model,ground dielectric,distance on the antenna coupling factor,finally establishes a precise communication vehicle model and simulates electromagnetic coupling factor between the sending and the receiving antennas in flat ground situation.Compared with the data from the actual test,it shows that the simulation results can approximately describe the coupling factor of the actual test.The maximal error is 16.54 dB and the mean square error(MSE)is 4.21 dB.
出处
《电波科学学报》
EI
CSCD
北大核心
2015年第4期814-819,共6页
Chinese Journal of Radio Science
关键词
反射系数
介电特性
平原地貌
电磁耦合度
reflection coefficient
dielectric properties
vehicle structure
flat ground
coupling factor
