舰船电子工程2019，Vol.39Issue(12)：199-203,5.DOI:10.3969/j.issn.1672-9730.2019.12.048
大功率甚低频天线阵列电磁辐射安全防护距离研究∗
Research on the Safety Protection Distance of Electromagnetic Radiation for High Power Very Low Frequency Antenna Array
摘要
Abstract
Very low frequency(VLF)high power communication antennas are usually arranged in the open area in the form of antenna arrays. The high intensity radiation field generated by VLF will adversely affect the electromagnetic environment(EME), thus new challenges to electromagnetic radiation control and protection is proposed. In this paper,the near field radiation strength of VLF antenna array is predicted by simulation,the minimum protection distance model of electromagnetic radiation hazard is con?structed,and the near field radiation protection distance and region division test of VLF antenna array are verified based on stan?dards such as ICNIP-2010,BS EN62311-2008,GB8702-2014 and GJB5313A-2017.The result show that the combined field strength of the VLF antenna array increases significantly with the increase of transmission power,and its protection distance also varies slightly with the transmission power and operating frequency. The minimum safety protection distance is 38.7m when the VLF antenna array is transmitted at 150kW,taking the ground projection point of the antenna array as the origin. In addition,with a radi?us of 40m is the hazardous area for operation ,and its instantaneous peak field strength far exceeds the safety limit of 170V/m,which will cause serious damage to the function of the pituitary gland,heart,lung,and pupil in the long-term movement of personnel. The research work in this paper can provide effective technical support for assessment of electromagnetic radiation hazard and protection control.关键词
甚低频/天线阵列/近场/电磁辐射危害/防护距离Key words
very low- frequency(VLF)/antenna array/near field/hazards of electromagnetic radiation/protection distance分类
信息技术与安全科学引用本文复制引用
石昕阳,王彦碧,黄波,谢朦..大功率甚低频天线阵列电磁辐射安全防护距离研究∗[J].舰船电子工程,2019,39(12):199-203,5.基金项目
装发"十三五"预研项目" XXXX台站抗强电磁脉冲加固技术研究及试验验证"(编号:41424020303)资助. （编号:41424020303）
