为了提高雷达的作用距离、作用范围以及减小其他方向的干扰,针对雷达对天线的要求,文中通过采用不等间距的变尺度算法设计优化了一种具有特殊方向图的收发天线系统。仿真设计了集成在同一块Rogers4350B材质上的一副发射天线(TX)、两副接收天线(RX1、RX2)微带天线阵,并且使该天线阵列在E面形成特殊形状的方向图。最后,对三天线系统进行了加工测试,测试结果表明:该天线阵列E面波束赋形效果良好,有效地提高了雷达的作用距离和作用范围,并且减小了其他方向信号的干扰。

In order to improve the function distance, range and lessen disturbances from other directions, for meeting the needs of antennas in radars, a receiving and transmitting antenna system with special direction pattern is designed and optimized, adopting DFP-BFGS algorithm with unequally-spaced array. Then, a microstrip antenna array with TX and two RXs (RX1、RX2) integrated in a Rogers4350B material is designed and stimulated, forming special direction diagram in E-plane. At last, the triple-antenna is processed and tested, with result that the beam-forming in E-plane of the antenna array has a good effect, effectively improving the function distance and range of radar and lessening the disturbance of signals from other directions.

TN82