一种宽窄波束、软硬件结合的相控天线阵设计

Design, of a receiving and transmitting phased antenna array of broad and narrow beams with conbination of hardware and software techniques

就高频地波雷达海洋环境监测的一种新颖宽窄波束、软硬件技术相结合的收发共用相控天线阵的设计 ,选用将 Hallen方程与电流分布函数的殆全域多项式展开相结合的矩量法 ,分析比较了相控天线阵在不同设计参数下的电磁性能 ,重点分析了互耦的影响以及实施“收发共用”对阻抗匹配的苛刻要求和现有设计在该问题上的技术缺陷 ,得到了关于该天线阵工程设计的若干结论。

A novel receiving and transmitting phased antenna array which involves combination of broad beam and narrow beam concept and combination of hardware and software techniques is designed, computer simulated and analyzed for HF ground radar monitoring oceanic environment.Hallen type equations combined with almost entire domain polynomial representation of current distribution function are selected to attack the simulation, analysis and comparison of electromagnetic performance of the antenna array under different design parameters.Emphasis has been put on the influence of mutual coupling and impedance matching on which“receiving and transmitting”presents stringent requirements.The technical limits of present design of the phased array are discovered.A few conclusions of the engineering design of the phased array are obtained.