半电波暗室RE102背景噪声影响因素及频段的研究  

Study on Influencing Factors and Frequency Range of RE102 Background Noise in Semi-anechoic Chamber

作　　者：李秋云 陈贺 辛中华 韩竹梅 LI Qiuyun;CHEN He;XIN Zhonghua;HAN Zhumei(CCRI(Beijing)Testing Technology Co.,Ltd.,Beijing 102608,China)

机构地区：[1]煤科(北京)检测技术有限公司,北京102608

出　　处：《电子质量》2024年第9期8-11,共4页Electronics Quality

基　　金：27 MHz~6 GHz射频电磁场辐射抗扰度系统集成开发(2023CG-JC-06);防爆静电放电自动测试系统(2022-2-TD-MS004)项目资助。

摘　　要：半电波暗室是一个除地板作为接地平板有反射之外,其余内表面均装有吸波材料的屏蔽体,是一个密闭的空间。GJB 151B—2013标准中RE102的测试场地一般为半电波暗室,测试频率范围覆盖10 kHz~18 GHz,测试采用4个天线分别覆盖各个频段。当半电波暗室RE102背景噪声不满足测试要求时,影响因素可能是多方面的。采用GJB 151B—2013标准中规定的测试方法,结合实验室实际应用中的测试案例,就不同影响因素造成的干扰信号的频率范围进行了分析,为实验室在背景噪声不满足测试要求时,根据具体的频段去定位具体噪声源提供了参考。The semi-anechoic chamber is a shielding body equipped with absorbing materials on the inner surface in addition to the reflection of the floor as a grounding plate,which is a closed space.The test site of RE102 in the GJB 151B—2013 standard is generally a semi-anechoic chamber,the test frequency range covers 10 kHz~18 GHz,and four antennas are used to cover each frequency band during the test.When the background noise of semi-anechoic chamber RE102 does not meet the test requirements,there may be many influencing factors.By using the test method specified in GJB 151B—2013 standard and combining with test cases in practical laboratory applications,the frequency range of interference signals caused by different influencing factors is analyzed,which provides reference for the laboratory to locate specific noise sources according to specific frequency bands when the background noise does not meet the test requirements.

关 键 词：半电波暗室 RE102 背景噪声 影响因素 频段 

分 类 号：TN98[电子电信—信息与通信工程]