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浙江医科大学微波研究室近年来对不同辐射功率的中、短波广播天线周围电场强度的衰减情况和影响因素进行了测定,并检测、分析了天线附近住宅场强高于室外的原因,提出了目前城市规划中对该波段不同辐射功率天线要参考卫生防护带的要求。他们用先进的各向同性宽频带场强计,对代表国内不同设置(山上和市中心)的电视塔进行了周围环境超短波的调查分析结果表明:(1)当一个电视塔上有不同频率的数个天线同时辐射时,环境中某点的复合场强等于各频率天线单独发射时所形成场强的平方和的根值;(2)电
Zhejiang University of Science and Technology Microwave Laboratory In recent years, different radiated power medium and shortwave radio field around the attenuation of the electric field strength and influencing factors were measured and detected the antenna near the residential field strength is higher than the outdoor reasons, the current Urban planning for the different radiation power of the antenna antenna should refer to the health protection zone requirements. Using the advanced isotropic broadband field strength meter, they surveyed and analyzed the ultra-shortwave surrounding environment of TV towers representing different domestic settings (hill and downtown): (1) When there are different frequency When several antennas radiate at the same time, the composite field strength of a certain point in the environment is equal to the root of the square sum of the field strength formed when each frequency antenna is launched separately; (2)