中波广播辐射场近区、过渡区、远区的分析  

Analysis of near field, transition field and far field in medium-wave broadcasting

作　　者：樊梦旭[1] 谭凤杰[1] 黄子璇[1] 邹澎[1] 

机构地区：[1]郑州大学信息工程学院,河南郑州450052

出　　处：《电子设计工程》2013年第10期48-50,58,共4页Electronic Design Engineering

基　　金：环保公益性行业科研专项基金资助(200909106)

摘　　要：从偶极子天线的完整场分布出发,结合近区场和远区场的特点,在保证误差精度为1dB的前提下,经理论分析计算及MATLAB拟合对比,得到了偶极子天线近区、过渡区、远区的范围,并给出了过渡区的简化计算公式,这为中波广播周围电磁环境的计算以及测量提供了理论依据。According to the complete field distribution of dipole antenna and the characteristic of near-field and far-field, through the theoretical analysis and MATLAB fitting, both the area of near-field, transition-field, far-field and the simplified expression of transition-field can finally be given in the precision of 1dB. As a result, it can provide theoretical basis for the calculation and measurement of electromagnetic environment around medium-wave broadcasting.

关 键 词：中波广播 偶极子天线 近区场 远区场范围 场强计算 

分 类 号：TN822.2[电子电信—信息与通信工程]