无线电引信电磁辐射能量耦合路径研究

Energy Coupling Path of Radio Fuze under the Electromagnetic Radiation Conditions

目的为了确定外界电磁能量究竟如何进入到引信电路内部,针对无线电引信的电磁能量耦合路径进行系统研究。方法通过对多种引信进行不同形式的连续波、强电磁脉冲电磁辐照效应试验,对比引信天线、孔缝、弹体、电源模块等部位的能量耦合可能性。分析连续波、强电磁脉冲电磁环境对无线电引信作用的耦合规律。结果确定了电磁信号类型和引信接地结构是影响电磁能量耦合通道的关键因素,揭示了前门耦合是连续波电磁辐射环境的最主要方式。结论弹体或引信前端与电路共地的金属部件是强电磁脉冲辐射环境的主要能量路径,从而为无线电引信抗电磁性能加固的实施提供了有益参考。

Objective To determine the method for electromagnetic energy to enter the fuze circuit and carry out systematic research on the electromagnetic energy coupling path of radio fuze. Methods Through the continuous wave and EMP radiation examinations, different types of fuzes were tested and researched. The coupling probability, such as the fuze antenna, empty seam, elastomer and power module, were compared. The coupling rules of the radio fuze under the electromagnetic radiation were analyzed. Results The type of electromagnetic signal and the structure of fuze grounding were determined to be key factors affecting the coupling path of electromagnetic energy. The front door coupling was the main mode in continuous wave electromagnetic radiation environment. Conclusion The elastomer or the front metal parts, which was connected with the fuze grounding structure just after the antenna is the main path in the intense electromagnetic pulse environment. It could be more helpful in improving the electromagnetic resistance of the radio fuze.