摘要
选取南通市具有代表性的9种不同架设类型的基站现场实测,分析其地面水平方向上的电磁辐射分布特征,以掌握基站不同架设方式对地面电磁辐射的影响。结果表明:天线架设方式不同,地面电磁辐射强度及分布存在一定差异,落地塔监测值整体低于楼顶塔。50 m范围内,功率密度值由大到小依次是楼顶抱杆>楼顶井字塔>楼顶角钢塔>楼顶景观塔>楼顶集束天线>楼顶拉线塔>楼顶四角塔>楼顶美化天线>落地塔,地面最大值普遍出现在距离基站20 m^30 m范围。受天线架设高度、下倾角因素的影响,楼顶美化天线和楼顶角钢塔地面最大值点分别出现在距离基站60 m和70 m处,超出监测点位50 m布设范围。
Nine representative base stations in Nantong have been selected for field investigating into the distribution of horizontal ground electromagnetic radiation. The result showed the intensity of electromagnetic radiation varied with the way the antenna being set up. The intensity of ground towers was generally lower than that of roof towers. Within the scope of 50 meters,the power density decreased in turn from roof derrick,roof tic-tactoe tower,roof angle iron tower,roof view tower,roof bunch antenna,roof bracing wire tower,roof quadrangle tower,roof embellished antenna to ground tower. The maximum ground electromagnetic radiation intensity of all the towers mentioned above could be detected in 20 ~ 30 meters away from the base station. Due to the factors of height and downward inclination angle,the maximum intensity of roof embellished antenna and roof angle iron tower could be detected in 60 and 70 meters away,respectively,which were beyond the normal inspection point50 meters.
出处
《环境监测管理与技术》
CSCD
2016年第6期64-67,共4页
The Administration and Technique of Environmental Monitoring
基金
江苏省环保科研基金资助项目(2014030)
南通市科技计划-社会事业科技创新与示范基金资助项目(HS2014022)
南通市"二二六工程"培养对象科研基金资助项目(2013007)
关键词
电磁辐射
地面强度
移动通信基站
天线架设
水平分布
Electromagnetic radiation
Ground intensity
The mobile communication base station
Antenna construction
Horizontal distribution
