电波暗室1~18GHz性能的测试方法
Anechoic chamber validation procedure for frequency range from 1GHz to 18GHz
摘要 文章介绍EMC电波暗室性能指标中与1GHz~18GHz归一化场地衰减NSA、场地电压驻波比(SVSWR)和场均匀性(FU)三项指标相关的IEC/CISPR/A和IEC/SC77B委员会草案CISPR/A/342/CD、CISPR/A/531/CD和77B/429/CDV,这三项指标的校验和评估方法既适用于全电波暗室也适用于在接地平板上加铺适当数量吸波材料的半电波暗室。
关键词 全电波暗室、半电波暗室、归一化场地衰减、场地电压驻波比、场均匀性、天线辐射方向图
Abstract This article gives a review of IEC/CISPR/A and IEC/SC77B Committee drafts,
CISPR/A/342/CD, CISPR/A531/CD and 77B/429/CDV, three validation procedures for
normalized site attenuation (NSA), site voltage standing wave ratio (SVSWR), field
uniformity (FU) of EMC anechoic chamber. These procedures can be applied in both fully
anechoic room and Semi-anechoic Chamber with suitable amount of absorbing material
on the ground plane.
Key Words Fully Anechoic Room, Semi-anechoic Chamber, Normalized Site Attenuation,
Site Voltage Standing Wave Ratio, Field Uniformity, Antenna Pattern.