电抗加载高频地波雷达天线阵设计方法研究

采用电抗加载的思想设计了小型偶极子二元天线阵,并利用矩量法验证了天线阵的高前后比与单向辐射特性。针对高频地波雷达的使用需求,以二元阵为子阵设计了小型平面接收天线阵和海岛共形接收天线阵。仿真实验结果表明,两型天线阵均能在一定范围的期望信号来波方向上形成窄波束,且具有较好的旁瓣抑止能力。相比之下,海岛共形天线阵以其占地面积较小,对天线阵架设限制要求低等优点,更适合于工程应用。文章进行的设计与分析对高频地波雷达天线阵的工程设计具有一定的指导意义。

Research on the Design of HFSWR Antenna Array Based on Reactance Loading

Mini-antenna array consists of two dipoles is designed by applying reactance loading method,then MoM（Method of Moments） based simulation validated the high fore-rear ratio and directional radiation characteristics of it.Taking the mini-array as an element,the combination of which,distributed linearly or along the coast,forms the plane or island conformal antenna array known as the HFSWR（High Frequency Surface Wave Radar）.Simulation is performed and the results show that relatively narrow beam can be formed in the direction of suppositive signal,moreover,side beams are well restrained.Taking advantages of less land occupation and less installation limitations,the conformal antenna array is more practical in application.The simulation results and analysis in this paper are of certain significance to the design of HFSWR.