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EMC Compliance Testing of BBC World Service HF Transmitter Sites

机译:BBC世界服务HF发射器站点的EMC合规性测试

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The aim of this work is to seek a modelling and measurement methodology to assess compliance of BBC World Service HF transmitter sites with ICNIRP safety guidelines relating to near zone incident field levels and the SAR and current densities they induce in the body, and to determine the most restrictive quantities. A typical HF curtain array is modelled over a Sommerfeld ground, and near zone cross-polar vertical fields are shown to be as significant as their horizontal co-polar counterparts, even without confounding support structures being considered. Results for 'Virtual Family' phantom models exposed to plane wave fields are described and compared with HPA data. A hybrid computational technique to illuminate phantoms with realistic near zone antenna fields is discussed, together with a corroborative field measurement strategy, focussing towards development of a general evaluation paradigm for all HF installations.
机译:这项工作的目的是寻求建模和测量方法,以评估BBC世界服务HF发射器站点的遵守与近距离区域内的ICNIRP安全指南,以及他们在身体中诱导的SAR和当前密度,并确定最严格的数量。典型的HF窗帘阵列在Sommerfeld接地上建模,并且即使在不考虑的束缚支持结构,近区域交叉极性垂直场也被视为显着的横向极性对应物。描述并与HPA数据进行比较并将其暴露于平面波场的“虚拟家庭”幻像模型的结果。将讨论混合计算技术与近距离区域天线场附近的幻像一起阐明与近距离区域测量策略一起讨论的,其侧重于所有HF安装的一般评估范例的发展。

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