用于高功率微波测量的圆极化微带阵列天线  

Circularly polarized microstrip array antenna applied to high power microwave measurement

作　　者：陈鹏[1,2] 宁辉[2] 景洪[2] 聂鑫[1,2] 毛从光[1,2] 

机构地区：[1]强脉冲辐射环境模拟与效应国家重点实验室,陕西西安710024 [2]西北核技术研究所,陕西西安710024

出　　处：《现代电子技术》2015年第17期84-86,共3页Modern Electronics Technique

摘　　要：在进行高功率微波(HPM)辐射场测量时,测量天线的极化匹配对测量精度影响较大。为提高测量精度,介绍一种微带圆极化阵列天线,采用功分器作为馈电网络,获得了小于1 d B的轴比,与非阵列圆极化微带天线相比,使轴比降低约1 d B。因此,当采用该圆极化阵列天线测量线极化微波的远场辐射时,使极化失配对测量结果的影响由±13%降至±3.6%左右。The polarization matching of measurement antenna has great impact on measurement accuracy while measuring the radiation field of high power microwave（HPM）. A circularly polarized microstrip array antenna is introduced to improve the measurement accuracy. Taking power divider as feed network,the axial ratio of better than 1 d B is acquired. Compared with circularly-polarized microstrip antenna with non-array,this method makes the axial ratio reduce by about 1 d B. When the array antenna is used to measure far field radiation of the linear polarized microwave,the influence of polarization mismatching on the measuring results is reduced from ±13% to ±3.6% approximately.

关 键 词：辐射场测量 圆极化 阵列天线 高功率微波 

分 类 号：TN821.134[电子电信—信息与通信工程]