GSM移动通信基站电磁辐射水平防护距离理论预测与现场实测对比分析

Analysis of Theoretical Prediction and Field Measurement about GSM Mobile Base Station Electromagnetic Radiation Protection Level

根据国家电磁辐射防护的相关规定及标准,使用微波环境质量预测的场强计算公式,得出基站的水平保护距离为18.8 m。本文采用意大利PMM 8053A型电磁辐射分析仪实测某典型GSM基站的电磁辐射水平,对结果进行插值法推出7°和4°俯角情况下轴向水平保护距离分别为15.4 m和18.7 m,4°俯角的实验结果与理论推算结果更为接近。

According to the relevant national regulations and standards on electromagnetic radiation protection,the base level protection distance derived using microwave environment quality forecast field intensity formula is 18.8 m.In this paper,the electromagnetic radiation level at a typical GSM base station was measured by Italian PMM 8053A electromagnetic radiation analyzer.Interpolation was made to derive the result that at 7° and 4° the angle of depression,the base level protection distance,respectively,is 15.4 m and 18.7 m.The experimental results at 4° angle of depression are closer to the theoretical calculation result.