【摘要】 本文系国内首次报道对中短波广播天线周围及附近住宅内的电场强度测定,分析得出:①环境电场强度的大小主要取决于辐射功率的大小及与天线的距离,此外与天线的方向性和增益以及地势等有关。②在天线附近建筑物内,当存在有金属物体,尤以存在金属导线与天线极化方向一致时,其周围空间场强可以明显增高,甚至高达10倍,需尽量防止。基于上述结果,提出了目前在城市规划中对该波段不同辐射功率天线的参考卫生防护带要求。更多还原

【Abstract】 The analysis of electric field strength distrlbution in the field and buil- dings around broadcasting antennae has shown that:1.environmental electric field strength depends mainly on the irradiating power and the distance from the antennae,apart from the factors such as direction and gain of antennae,terrain,ete;2.inside the buildings near the an- tennae,electric field strength might increase in the place where a certain kind of conductor exists,even up to ten times when the conductor is paralleled to E.Based on the above (?)indings,requirements for the hygienic protection zone of these frequency band antennae with different powers are suggested for reference.更多还原