摘要
本文提出了一种相控阵雷达天线谐波辐射发射改进型现场测试方法,并以某型雷达相控阵天线为例,基于ITU-R SM.329-11-2011和MIL-STD-461G-2015标准,构建了相控阵雷达天线谐波测试系统,在开阔场条件下,实测了天线的谐波辐射发射指标。研究结果表明:10 kHz^40 GHz频段内,该型相控阵雷达天线的谐波辐射发射的二次谐波抑制度约为65 dB,三次及高次谐波抑制度为80 dB。侧面验证了改进型现场测试方法在雷达天线有效辐射功率测定,分辨率带宽设置等方面,比基于微波暗室的测量方法,有更好的可操作性和可行性。
In this paper,an improved field test method for harmonic emission of phased array radar antenna is presented.Based on ITU-R SM.329-11-2011 and MIL-STD-461G-2015 standards,the antenna harmonic measurement system of phased array radar is constructed,and the antenna harmonic emission suppression is measured under the condition of open field.The results show that the second harmonic suppression is about 65 dB and the third and higher harmonic suppression is about 80 dB in the frequency band of 10 kHz to 40 GHz.The improved field test method is proved to be more operability and feasible than the method based on microwave anechoic chamber in the aspects of radar antenna effective radiated power,resolution bandwidth setting.
作者
周海军
石昕阳
ZHOU Hai-jun;SHI Xin-yang(Technical Cooperation Center of Department of Naval Equipment,Beijing 100841;Wuhan Maritime Communication Research Institute,Wuhan 430205)
出处
《环境技术》
2020年第4期140-144,共5页
Environmental Technology
关键词
相控阵天线
谐波
发射
测量
phased array antenna
harmonic
radiated emissions
measurement
