毫米波探测器的超宽带耦合特性

doi:10.12305/j.issn.1001-506X.2022.12.07

Abstract

Abstract:

Detector is a target sensitive device of short-range detection system, which is sensitive to electromagnetic pulse. Aiming at the fact that the ultra-wideband (UWB) electromagnetic pulse immunity of a certain type of millimeter wave detector is unclear, the electromagnetic pulse coupling characteristics of the detector are studied around the UWB irradiation environment. The finite integration technology (FIT) algorithm is applied to the study of the coupling characteristics of the detector cavity. Combined with the UWB test system, the irradiation test of the detector is carried out to verify the effectiveness of the FIT algorithm. The simulation and test results show that the cavity shielding effectiveness of the detector is the worst in the vertical state, and its shielding efficiency is 20.40 dB in the simulation; The test results show that the effective field strength threshold of the detector is about 150 kV/m. There will be three phenomena: crash, false alarm and hard damage under irradiation. The crash can be recovered by power reset, and the false alarm and hard damage are irreversible effects.

Key words: millimeter wave detector, ultra-wideband (UWB) electromagnetic pulse, electromagnetic environment effects

CLC Number:

TN974

Kaibai CHEN, Ming GAO, Xiaodong ZHOU, Junjian BI, Yi WANG. Ultra-wideband coupling characteristics of millimeter wave detector[J]. Systems Engineering and Electronics, 2022, 44(12): 3641-3651.

Figures/Tables 30

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References 30

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场强/(kV/m)	触发模式	效应数据	场强/(kV/m)	触发模式	效应数据
152	单脉冲	0	257	单脉冲	0
152	5 Hz/1 s	0	257	5 Hz/1 s	0
152	25 Hz/1 s	0	257	25 Hz/1 s	0
152	25 Hz/5 s	0	257	25 Hz/5 s	0
152	25 Hz/10 s	0	257	25 Hz/10 s	0
180	单脉冲	0	300	单脉冲	0
180	5 Hz/1 s	0	300	5 Hz/1 s	0
180	25 Hz/1 s	0	300	25 Hz/1 s	0
180	25 Hz/5 s	0	300	25 Hz/5 s	0
180	25 Hz/10 s	0	300	25 Hz/10 s	0
200	单脉冲	0	360	单脉冲	0
200	5 Hz/1 s	0	360	5 Hz/1 s	0
200	25 Hz/1 s	0	360	25 Hz/1 s	0
200	25 Hz/5 s	0	360	25 Hz/5 s	0
200	25 Hz/10 s	0	360	25 Hz/10 s	0
225	单脉冲	0	436	单脉冲	0
225	5 Hz/1 s	0	436	5 Hz/1 s	0
225	25 Hz/1 s	0	436	25 Hz/1 s	0
225	25 Hz/5 s	0	436	25 Hz/5 s	0
225	25 Hz/10 s	0	436	25 Hz/10 s	0

敏感部位	峰值功率/dBm
连接线	25.88
天线	9.66
金属管脚	-2.38

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Ultra-wideband coupling characteristics of millimeter wave detector

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