国内外天线校准用开阔场特性解析
Analysis on Current State-of-the-art in OATS
摘要 EMC测量天线是电磁兼容检测和电波暗室性能评估的关键设备,天线参数的量值溯源除了与校准方法和测量仪器密切相关外,测量场地的作用尤为重要。根据CISPR 16-1-5:2012分析了30~1 000 MHz天线校准和参考试验场地的规范、确认程序和符合性准则。介绍了美国、英国、日本、奥地利和中国计量科学研究院天线校准开阔场的主体结构、金属接地平板、控制室、附属设施以及性能指标,并给出了设计和建造校准用试验场地(CALTS)和参考试验场地(REFTS)时应重点考虑的问题。
关键词 开阔场;符合性试验用试验场地;校准试验场地;参考试验场地;场地衰减
Abstract An EMC antenna is one of the key instrument for EMC compliance test and
anechoic chamber validation. The antenna test site plays an significant role in the
tracing of an antenna factor.The specifications,validation and compliance test criterions
of antenna calibration test site (CALTS) and reference test site (REFTS) over 30 MHz to
1 000 MHz are analyzed per CISPR 16-1-5:2012.The information about OATS in USA,UK
Japan,Austria and NIM is provided,focusing on the structure of the OATS,the reflection
ground plane, control room and accessories, as well as the performance. Finally, the
aspects of designing and constructing CALTS and REFTS, which should be paid special
attention to, are provided.
Keywords open area test site; compliance test site; calibration test site; reference test
site; site attenuation
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