频率搅拌混响室内小屏蔽体的场均匀性检验  

Field Uniformity Test of Small Enclosures in Frequency Stirring Reverberation Chamber

作　　者：徐鑫[1] 魏明[1] 程二威[1] 刘逸飞[1] 卫欣[2] 

机构地区：[1]军械工程学院静电与电磁防护研究所,河北石家庄050003 [2]机械化步兵学院院务部,河北石家庄050083

出　　处：《军械工程学院学报》2013年第6期44-48,共5页Journal of Ordnance Engineering College

基　　金：国家自然科学基金资助项目(51107147)

摘　　要：为了研究频率搅拌混响室内小屏蔽体的屏蔽效能测试方法,需要检验小屏蔽体内的场均匀性.通过对混响室的场均匀性测试方法的研究,提出基于矢量网络分析仪的测试方法,通过计算工作区域任意两点的功率比检验场均匀性,并用该方法检验工作区域内小屏蔽体的场均匀性.实验结果表明:混响室采用扫频信号实现频率搅拌时,放置于工作区域的小屏蔽体内部同样有较好的场均匀性.In order to study the shielding effectiveness of small enclosures in frequency stirring re- verberation chambers,we need to test small enclosures＇field uniformity in the body. Through the research on test methods for field uniformity of reverberation chamber, we put forward a test method based on vector network analyzer, which compares the power ratio of two arbitrary points in the work area,and tests the field uniformity of small enclosures in reverberation chambers. The results show that when we use frequency sweeping signal to realize frequency stirring in the re- verberation chamber,the small enclosures placed in the work area also have good uniformity.

关 键 词：混响室 频率搅拌 场均匀性 小屏蔽体 

分 类 号：O441[理学—电磁学]