摘要
由于天线近场辐射特性较为复杂,目前国内尚无统一的电磁环境辐射测试及评价标准。文章研究移动通信基站的电磁辐射安全问题,分析天线近场区电磁辐射功率随着相对天线的距离和角度的改变而变化的规律。研究结果表明,无论是在垂直面还是在水平面,只要测量位置在天线方向图主波束的半功率波束宽度内,天线辐射场功率密度值始终存在远场公式计算值大于近场辐射仿真值,因此可以用远场计算值保守估计实际天线的近场辐射功率密度值。研究结果可为电磁防护距离提供理论依据。
Due to the complex characteristics of antenna near-field radiation,there is no unified electromagnetic radiation test and evaluation standard in China at present.In this paper,the electromagnetic radiation safety of mobile communication base station is studied,and the electromagnetic radiation power in the near field of antenna changing with the distance and angle of the antenna is analyzed.The research results show that whether in a vertical or horizontal plane,as long as the measuring position in antenna pattern is within the half power beam width of main beam,the calculated value of antenna radiation field power density with far-field formula is greater than the near-field radiation simulation value,therefore the calculated value of the far field can be used for the conservative estimate of the actual antenna near-field radiation power density value.The results can provide a theoretical basis for electromagnetic protection distance.
作者
高鹏程
田丰
彭书传
GAO Pengcheng;TIAN Feng;PENG Shuchuan(School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China;Anhui O’rigin Environmental Engineering Co.,Ltd.,Hefei 230088,China)
出处
《合肥工业大学学报（自然科学版）》
CAS
北大核心
2022年第11期1563-1568,共6页
Journal of Hefei University of Technology：Natural Science
关键词
移动基站
电磁辐射
天线近场区
天线方向图
mobile base station
electromagnetic radiation
antenna near-field region
antenna pattern
作者简介
高鹏程(1991-),男,安徽肥西人,合肥工业大学硕士生;田丰(1977-),男,安徽宿松人,博士,安徽长之源环境工程有限公司正高级工程师,硕士生导师;彭书传(1964-),男,安徽金寨人,博士,合肥工业大学教授,博士生导师.
