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| Protection and Reinforcement Measures of Ultra-wideband Electromagnetic Pulse for Millimeter Wave Proximity Detector |
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| DOI：10.7643/issn.1672-9242.2022.11.004 |
| KeyWord:fuze proximity detector ultra-wideband electromagnetic pulse reinforcement irradiation test hard damage |
| Author | Institution |
| CHEN Kai-bai |
Department of Missile Engineering, Shijiazhuang , China |
| LIU Shao-hua |
Army Equipment Department, Beijing , China |
| BI Jun-jian |
National Key Laboratory on Electromagnetic Environment Effects, Shijiazhuang , China |
| GAO Min |
Department of Missile Engineering, Shijiazhuang , China |
| ZHOU Xiao-dong |
Department of Ammunition Engineering, Army Engineering University of PLA, Shijiazhuang , China |
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| Abstract: |
| The paper aims to improve the electromagnetic protection capability of the fuze and study the reinforcement measures of ultra-wideband electromagnetic pulse protection for the proximity detector of the millimeter wave fuze. The ultra-wideband irradiation test platform is used to carry out the irradiation test, through which the damaged part of the damaged detector is determined, the irradiation effect mechanism is clarified, and targeted reinforcement measures are proposed. The ultra-wideband electromagnetic pulse can cause the detector to crash or hard damage, and the threshold of the effect field strength of the detector under test is between 50 kV/m and 80 kV/m. A crash can be recovered after a restart, while hard damage is unrecoverable. The millimeter wave fuze proximity detector is sensitive to ultra-wideband electromagnetic pulses, and the phase-locked loop is the sensitive part of the detector. The RF circuit and antenna window of the detector exposed to the radiation field are the main coupling channels of the ultra-wideband energy. After the reinforcement measures such as improving the layout of components and replacing components and shielding wires, the ultra-wideband protection capability of the detector is greatly improved, which proves the effectiveness of the reinforcement measures. |
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