| 摘要: |
| 为研究混响室搅拌器位置对测试区域场均匀性影响，采用基于矩量法的电磁仿真软件
FEKO对混响室仿真模型进行数值计算，通过与遗传算法相结合对混响室搅拌器位置进行优化
，得到了搅拌器位置的最优解以及相应的表征混响室测试区域场均匀性的电场标准偏差值。
研究表明：搅拌器位置影响测试区域场均匀性，当搅拌器位置处于最优配置时，测试区域各
轴向电场标准偏差较初始状态分别下降了474%、201%、571%，总标准偏差下降了44
0%，测试区域场均匀性较优化前有所提高，提高了混响室用于电磁兼容测试时的准确度。 |
| 关键词: 电磁兼容测试 混响室 搅拌器位置 遗传算法 矩量法 场均
匀性 |
| DOI： |
|
| 基金项目:国防科技重点实验室基金资助项目（9140C87030310JB3402） |
|
| Numerical Analysis of Stirrer Position Optimization in a Reverberation Chamber |
| CUI Yao-zhong,WEI Guang-hui,FAN Li-si,WAN Hao-jiang,LIU Xiao-qiang |
| (National Key Laboratory of High Electromagnetic Field Environment Simulation &
Protection Technology，Ordnance Engineering College，Shijiazhuang 050003，Chin
a) |
| Abstract: |
| In order to analyse the effect of stirrer position on field uniform
ity in a reverberation chamber，the simulation model is constructed with FEKO ba
sed on moments method(MOM).The method of combining genetic algori
thm(GA) with MOM is used to analyse and optimize the reverberation ch
amber.The optimal position of stirrer and the standard deviation of the electric
f
ield in the reverberation chamber are obtained.The optimal results show that com
pared with initial standa
rd deviation， the field deviation of every axis de
creases by 474%，201%，571%，respectively,and the whole-deviation decreas
es by 440%．
The
field uniformity is improved in the work space of the reverberation chamber by
op
timization，and the accuracy of electromagnetic compatibility(EMC) testing in a
chamber is improved. |
| Key words: reverberation chamber stirrer position genetic algorithm MOM field uniformit
y |
《电讯技术》编辑部 