高功率微波辐射场远场测量方法  

Farfield measurement method of high power microwave in radiation field

作　　者：张黎军[1] 陈昌华[1] 滕雁[1] 孙钧[1] 宋志敏[1] 张晓微[1] 张治强[1] 

机构地区：[1]西北核技术研究所高功率微波技术重点实验室,西安710024

出　　处：《强激光与粒子束》2016年第5期40-46,共7页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：数值模拟并给出了测量距离、积分角度范围和E面、H面等化性对辐射场积分功率的影响。基于X波段大功率微波源、20dB标准喇叭以及680mm辐射喇叭,开展了测量布局对辐射场积分功率的影响大功率验证实验研究。此外,基于X波段9.3,9.7GHz相对论返波管,开展了测量布局的高功率应用实验研究。研究结果表明:尽管测量距离不满足远场条件,但只要辐射喇叭E面、H面的等化性较好,通过足够的积分角度范围控制,也可以得到较为准确的辐射场功率测量结果。The measurement layout of the high power microwave in radiation field,which includes measuring the distance,the integral angle range,and the equality of E-plane and H-plane,is researched with numerical methods.The influence of measurement layout on the experimental results in radiation field is studied by the X-band magnetron and 20 dB horn as well as 680 mm horn with an input power of 407 kW.And the measurement layout is validated by the X-band 9.3GHz and 9.7GHz relativistic back wave oscillator.Experimental results show that accurate results can be got by the integral angle control if the equality of Eplane and H-plane is well,even though the measurement distance does not satisfy the far-field condition.

关 键 词：高功率微波 辐射场 方向图 积分功率 

分 类 号：O441.5[理学—电磁学]