摘要
低电平扫频场(LLSF)试验作为飞机高强度辐射场(HIRF)试验的重要组成部分,其实质是在100 MHz^18 GHz频段下对飞机进行电磁辐照试验,进而获得机体不同区域的屏蔽效能。通过对某型号直升机开展低电平扫频场试验,对所采用的低电平扫频场试验方法进行总结。并对取得的试验结果进行研究分析,得到了直升机的屏蔽性能随频率、天线极化、辐照角度和测试位置改变的变化规律,并分析了其影响机理。所得结论可为国内开展飞机低电平扫频场试验提供参考与支撑。
Low-level swept field(LLSF)test is an important part of high-intensity radiation field(HIRF)test for aircraft.It is an electromagnetic radiation test for aircraft in the 100 MHz-18 GHz band,which can obtain the shielding effectiveness of different areas of the airframe.Through the low-level swept field test of a certain type of helicopter,we have concluded the low-level swept field method,studied and analyzed the results of the test.This paper show how the shielding effectiveness varies as frequency,antenna polarization,irradiation angle and test positions for helicopter,and its influence mechanism was analyzed.The conclusion provides reference and support for low-level sweep field test of aircraft in China.
作者
刘勇
马跃进
司晓亮
胡静
王建国
LIU Yong;MA Yue-jin;SI Xiao-liang;HU Jing;WANG Jian-guo(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;93131 Unit,Airforce,Beijing 100000,China;Anhui Provincial Aircraft Lightning Protection Laboratory,Hefei 230031,China;Aviation Key Laboratory of Scicence and Technology on High Intensity Electromagnetic Environment Protection,Hefei 230031,China)
出处
《微波学报》
CSCD
北大核心
2020年第3期20-25,共6页
Journal of Microwaves
基金
装备预研航空工业联合基金(20184467016)
国家重点研发计划(2017YFC1501506)。
关键词
高强度辐射场(HIRF)
低电平扫频场试验
直升机
电磁辐照试验
屏蔽效能
high-intensity radiation field(HIRF)
low-level swept field(LLSF)test
helicopter
electromagnetic radiation test
shielding effectiveness
