高频地波雷达天线阵方向图的近场聚焦技术

高频地波雷达天线阵方向图的近场聚焦技术 Pattern Measurement of Phased Array Antenna for the HF Ground Wave Radar by Focusing Method in Near Field 高火涛 GAO Huo-tao 1 2 first-author 吴世才 WU Shi-cai 1 2 侯杰昌 HOU Jie-chang 1 2 杨子杰 YANG Zi-jie 1 2 武汉大学电子信息学院 武汉大学电子信息学院 School of Electronic Information, Wuhan University, Wuhan 430072, Hubei, Chian School of Electronic Information, Wuhan University, Wuhan 430072, Hubei, Chian 武汉大学电子信息学院,湖北,武汉,430072 武汉大学电子信息学院,湖北,武汉,430072 详细分析了“聚焦法”测量天线阵列方向图的理论依据和测量原理 ,提出利用“聚焦法”测量 OS-MAR2 0 0 0天线阵列方向图的技术方案 .理论计算和实测结果表明文中设计方案是可行性的 There are many method to measure the pattern of phased array antenna, such as technique of phane scaning in near field, focsing method, general method in far field, etc. In this paper, the principle base and the realization method of the phased array antenna pattern’s measurement with focsing method in near field zone are discussed. The patterns of near field and far field are compared through experiment. The result is indicate that this method to the phased array antenna’s performance for ground wave radar is an effective method in near zone. 高频地波雷达 相控阵列天线 近场区 聚焦法 high-frequency ground wave radar phased array antenna near field focusing method TN822 国家 8 63计划资助项目 （863 -818-0 1-0 2 ） 2001-05-01 2021-04-01 5