CAJ | 학술논문

核电磁脉冲可以从通信设备机箱孔缝、键盘、接头等开口进入机箱内部并对电子设备的正常工作时序产生影响，因此，在设备机箱设计中需要对强电磁脉冲辐射下机箱内部的强电磁脉冲环境进行预测。然而，由于通信设备机箱体积小，而强电磁脉冲的带宽过宽，常规的小探头难以对电磁脉冲波形进行测量。基于此，给出一种通信设备机箱强电磁脉冲耦合仿真新方法。首先，利用机箱频域屏蔽效能测试结果对通信机箱仿真模型的正确性进行验证；然后，利用上述仿真模型对强电磁脉冲的耦合特性进行仿真。研究表明，上述方法可以运用于小腔体强电磁脉冲耦合特征的预测。
핵전자맥충가이종통신설비궤상공봉、건반、접두등개구진입궤상내부병대전자설비적정상공작시서산생영향，인차，재설비궤상설계중수요대강전자맥충복사하궤상내부적강전자맥충배경진행예측。연이，유우통신설비궤상체적소，이강전자맥충적대관과관，상규적소탐두난이대전자맥충파형진행측량。기우차，급출일충통신설비궤상강전자맥충우합방진신방법。수선，이용궤상빈역병폐효능측시결과대통신궤상방진모형적정학성진행험증；연후，이용상술방진모형대강전자맥충적우합특성진행방진。연구표명，상술방법가이운용우소강체강전자맥충우합특정적예측。
In modern communication systems,the equipment is often shielded with metal enclosure for the protection from external electromagnetic pulse(EMP)interference. However,different kinds of slots and gaps may still exist on the enclosure and affect the overall shielding effectiveness. This paper investigates the shielding effectiveness of the metal enclosure when EMP propagates into slots with a certaln angle, which is then compared to the results obtalned when the direction of EMP's propagation is vertical to the slot. The specific calculating approach is presented,and the shielding effectiveness of the metal enclosure with slots in different shapes and numbers is analyzed.