标准摘要
[中文适用范围]: 本标准规定了电磁波吸收体(EMA)对正入射、斜入射和毫米波范围内各偏振波的反射率的测量方法。此外,这些方法对于其他材料的反射率测量也同样有效: - 测量频率范围:30 GHz至300 GHz; - 反射率:0 dB 至-50 dB; - 入射角:0~ 至 80°。注:本标准不仅适用于那些广泛用作通信故障、无线电干扰等对策的EMA,而且在某些情况下也适用于电波暗室中使用的EMA。 EMA可以是任何种类的材料,并且可以具有任何任意形状、构造或层状结构,如下文所指出的。材料:导电材料、介电材料、磁性材料。形状:平面型、金字塔型、楔型或其他特定形状。层结构:单层、多层或渐变折射率材料。 [外文原描述]: IEC 62431:2008 specifies the measurement methods for the reflectivity of electromagnetic wave absorbers (EMA) for the normal incident, oblique incident and each polarized wave in the millimetre-wave range. In addition, these methods are also equally effective for the reflectivity measurement of other materials: - measurement frequency range: 30 GHz to 300 GHz; - reflectivity: 0 dB to -50 dB; - incident angle: 0° to 80°. It replaces and cancels IEC/PAS 62431. This bilingual version published in 2011-11, corresponds to the English version published in 2008-07.
英文名称Reflectivity of electromagnetic wave absorbers in millimetre wave frequency - Measurement methods