摘要
针对混响室（RC）与均匀场辐射敏感度测试结果差异较大的问题，基于不同测试场地中被测设备（EUT）敏感元件的接收功率相等，推导了混响室与均匀场等效的临界辐射干扰场强计算式，提出了一种新的混响室条件下辐射敏感度测试方法，分析了混响室与均匀场辐射敏感度测试的差异及原因。以计算机机箱为被测设备，置于机箱内的单极子天线为敏感元件，分别在混响室和均匀场中进行试验。结果表明：对于两种不同的测试环境，该方法得到的辐射敏感度具有较好的一致性，可以将该方法应用于复杂电大尺寸设备的辐射敏感度测试。
To solve the problem that the correlation of the radiated susceptibility testing results between reverberation chamber （RC） and uniform field are always poor, we derived a formula to calculate the critical radiated interference E-field strength, which ensured the equivalency of reverberation chamber and uniform field, based on the identical received power of the sensitive elements of the equipment under test （EUT） within different testing environments. Moreover, we put forward a new radiated susceptibility testing approach in RC and analyzed its difference compared to the uniform field. An experimental validation was performed in RC and uniform field, respectively, after taking a computer case as EUT and a monopole antenna inside as the sensitive element. The results show that the radiated immunity level obtained from the presented approach is identical for the two environments, and this new approach can be applied to the radiated susceptibility testing for complex and electrically large equipment.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2018年第1期282-288,共7页
High Voltage Engineering
基金
国家自然科学基金(61372040)~~
关键词
混响室
辐射敏感度
相关性
单极子天线
接收功率
方向性
reverberation chamber
radiated susceptibility
correlation
monopole antenna
received power
direetivity
