摘要: The first assumption relates to the measurement environment, namely that it is occurring in free space. Reflections from nearby objects, or the attenuation of the signal by anything other than distanc ...
The first assumption relates to the measurement environment, namely that it is occurring in free space. Reflections from nearby objects, or the attenuation of the signal by anything other than distance, are not accounted for. A good Fully Anechoic Room (FAR) gives this kind of environment, an Open Area Test Site (OATS) less so because of complications like ground-plane reflections. With this in mind, the basic situation is shown in Figure 1. Figure 1. Basic relationship between radiated power and field strength Where P= power (W), E= electricfield strength (V/m) and Pd= power density (W/m2) dBμV/m into Effective Isotropic Radiated Power (EIRP) P(dBm) = E(dBμV/m) – 95.2 In summary, bearing in mind the assumptions being made, the Effective Isotropic Radiated Power can be derived from the 3 m field strength test measurements supplied with the CNE and CGE reference sources by subtracting 95.2 from the numerical value given in dBμV/m. By following the same process for the case of 10 m test measurements, 84.8 should be subtracted instead. More detail refer to : https://www.emc.wiki/thread-4295-1-1.html |
我们坚持以优秀的创意设计、领先的软件编程技术、出其不意的电子商务战略,鼎力为国内外知名企业提供全方位网站设计、网站优化服务。
我们一直都专研此道,从视觉出发,颜色、版式、材质、载体每一个都寄托了它的灵魂,我们精于此道:品牌策划、平面设计。
我们一如既往地根据用户的需求、市场环境、企业状况等进行综合分析并提供真实可靠的WEB解决方案,有效提升企业形象及品牌知名度。
我们将致力于品牌视觉设计与商业模式传播的完美结合,长期及时地在线售后服务和免费升级更新,为企业提供一站式服务。
场强换算为功率值,对于无线RF产品测试欧洲杂散测试,对比之前的替代法,要先进多了!!!主要是快速,不用替代法那样繁琐,还容易出错。不确定度太大了……
好文章,必须顶~~~~