摘要
为利用小型相控阵实现高频地波雷达对中远距离大范围海域表面状态的有效监测 ,提出了一种以优化八木天线为单元的收发共用相控阵 ,实施单排激励。这种设计使整个雷达系统的硬件配置和相控天线阵布阵简单 ,较好地解决了收发共用造成的阻抗匹配困难 ,便于实现宽窄波束、软硬件技术结合的收发共用相控天线阵的设计路线。
A phased antenna array, for both receive and transmit, by single row excitation consisting of optimized Yagi Uda elements in a row is presented for the effective monitoring of medium or large range of coastal area surface state by HF ground wave radar using compact phased arrays. Compared to other designs, the configuration of the whole radar system is simpler and cost of the deployment of the phased antenna array is less. This design solves the impedance matching problem very well arising from “both receive and transmit”. It is optimal for realizing the design idea of compact phased array of HF ground radar, for both receive and transmit, of combination of broad beam and narrow beam and of combination of hardware and software techniques.
出处
《电波科学学报》
EI
CSCD
2000年第2期162-168,共7页
Chinese Journal of Radio Science
基金
国家高科技发展计划资助项目!(818- 0 1- 0 2 )
关键词
相控阵天线
高频地波雷达
八木天线单元
Phased antenna array
Antenna design by numerical optimization
Impedance matching
Descended simplex method
Powell optimization method
