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 |
我们坚持大道至简,实干为要,为您提供坚强有力的技术支撑。我们相信为您提供有意义的选项,符合您个人偏好的方式更改您的产品,让您的产品更具价值。
全部采用ETS-Lindgren、Rohde&Schwarz、Keysight、Schwarzbeck、California Instruments、EMTEST、Tektronix等进口设备,为精准测试提供了保障。
为您提供综合EMC方案与材料一站式解决方案,成熟可靠、稳定的物料供应,不用担心设计研发时的物料与生产过程的差异,导致与认证标准的差异,带来市场准入风险。
我们将致力于电磁兼容,探索周边扩展为您提供更多价值,让合作更具活力与务实高效,提高市场竞争力。
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~~~~