基于平面波叠加的混响室场环境模拟与测试仿真
发布时间：2019-05-21 08:05
【摘要】：针对电磁混响室难以仿真的问题,分析了平面波叠加模拟混响室场分布的合理性,根据理想混响室特征给出了叠加平面波的幅值、极化角度等参数设置的细节信息。在此基础上,利用Matlab调用FEKO的混合编程方法进行了场环境模拟,检验结果表明,叠加场环境特性与混响室场分布特性保持了一致。利用该方法,对某开缝矩形腔体的屏蔽效能进行了仿真测试,并取得了与实测数据相符的结果,其屏蔽效能约为15 d B。该方法有效避免了对混响室的精确建模,大大降低了混响室条件下相关测试仿真的难度与计算量,同时为深入分析混响室场环境特性提供了一条捷径。
[Abstract]:In order to solve the problem that it is difficult to simulate the electromagnetic reverberation chamber, the rationality of the field distribution of the plane wave superposition simulation reverberation chamber is analyzed, and the details of the parameters such as the amplitude and polarization angle of the superimposed plane wave are given according to the characteristics of the ideal reverberation chamber. On this basis, the field environment simulation is carried out by using the mixed programming method of Matlab calling FEKO. The test results show that the environmental characteristics of the superimposed field are consistent with the field distribution characteristics of the reverberation chamber. By using this method, the shielding effectiveness of a slit rectangular cavity is simulated and tested, and the results are in good agreement with the measured data. The shielding effectiveness is about 15 dB. This method effectively avoids the accurate modeling of reverberation chamber, greatly reduces the difficulty and computation of related test simulation under the condition of reverberation chamber, and provides a shortcut for further analysis of the environmental characteristics of reverberation chamber field.
【作者单位】： 西北核技术研究所强脉冲辐射环境模拟与效应国家重点实验室;北京跟踪与通信技术研究所;军械工程学院静电与电磁防护研究所;
【基金】：国家自然科学基金(51107147;51177174)~~
【分类号】：TN03
[Abstract]:In order to solve the problem that it is difficult to simulate the electromagnetic reverberation chamber, the rationality of the field distribution of the plane wave superposition simulation reverberation chamber is analyzed, and the details of the parameters such as the amplitude and polarization angle of the superimposed plane wave are given according to the characteristics of the ideal reverberation chamber. On this basis, the field environment simulation is carried out by using the mixed programming method of Matlab calling FEKO. The test results show that the environmental characteristics of the superimposed field are consistent with the field distribution characteristics of the reverberation chamber. By using this method, the shielding effectiveness of a slit rectangular cavity is simulated and tested, and the results are in good agreement with the measured data. The shielding effectiveness is about 15 dB. This method effectively avoids the accurate modeling of reverberation chamber, greatly reduces the difficulty and computation of related test simulation under the condition of reverberation chamber, and provides a shortcut for further analysis of the environmental characteristics of reverberation chamber field.
【作者单位】： 西北核技术研究所强脉冲辐射环境模拟与效应国家重点实验室;北京跟踪与通信技术研究所;军械工程学院静电与电磁防护研究所;
【基金】：国家自然科学基金(51107147;51177174)~~
【分类号】：TN03
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