| 摘要: |
| 为解决混响室大体积与场性能高要求之间
的矛盾，提出了一种基于镜像原理的多馈源混响室的设计思想，从原理上分析了镜像多馈源
混响室的可行性和有效性，并通过仿真计算研究了镜像双馈源混响室的场性能。结果表明，
在
输入功率一定时，两个单混响室系统组合成镜像双馈源混响室后，在工作区域的场均匀性能
不下降的基础上，不但可用于电磁兼容测试的工作区域体积大幅度增大，而且测试区域的电
场强度也得到了提高。同时，对镜像多馈源混响室进行了进一步的扩展分析，得出了组成镜
像多馈源混响室的单混响室系统数量的理论表达式。 |
| 关键词: 电磁兼容测试 混响室 镜像原理 多馈源 场强 场均匀性 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目:国家自然科学基金资助项目（60671045） |
|
| Effects of Mirror Structure on Field Performance of Multi-feed Reverberation Chamber |
| LIU Xiao-qiang,WEI Guang-hui,FAN Li-si,CUI Yao-zhong |
| (Electrostaticand Electromagnetic Protection Institute,Ordnance Engineering College,Shijiazhuang 050003,China) |
| Abstract: |
| In order to solve the conflict between large vol
ume and high field performance of reverberation chamber,a design thou
ght of multi-feed reverberation chamber based on mirror theory is put
forward.Feasibility and validity of multi-feed reverberation chamber
is analysed in theory,and the field performance of dual-feed is simu
lated.The results show that under a certain power input,not only t
he testing volume for electromagnetic compatibility(EMC) test of
the dual-feed reverberation chamber increases remarkably after two single rever
beration chamber systems are combined,but the field strength
of the working volume is also improved,with no decling of the field uniformity.
At the same time,further expansion analysis is made for mirror multi-f
eed reverberation chamber,and the theoretical
expression of the number of single reverberation chamber that can be used to c
ombine multi-feed reverberation chamber is obtained. |
| Key words: EMC test reverberation chamber mirror theory multi-feed field strength field uniformity |
《电讯技术》编辑部 