基于遗传算法的多板天线时延相位补偿技术

关于动中通系统中普遍采用抛物面天线,可使得系统小型化难度增加,为优化最佳天线方案,采用平板天线取代抛物面天线可以部分改善.为促进动中通技术在车载平台中的应用,提出了超低轮廓相控阵天线方案,使得平板相控阵天线的高度进一步降低.针对孔径效应和孔径渡越时间限制问题,给出了时延相位两级补偿的方法,有效扩展了天线系统的工作带宽;同时采用遗传算法调整天线阵因子相位,对多板相控阵天线方向图的副瓣高度实现了优化.仿真结果表明,多板天线方案可以实现性能对平板天线的逼近,并很好的适应了车载平台对天线高度的严格要求,有较高的工程实用价值.

Compensation for Time-delay and Phase of Multi-planar Antenna SOTM Based on Genetic Algorithm

To reduce the height of the planar phased array antenna is a key problem in satellite communication on the move(SOTM).A scheme of multi-panel phased array antenna can resolve it.The method of two-class phase compensation is given in order to resolve the problems of aperture effect and aperture transition time of the phased antenna.This technique improves the bandwidth of the antenna system.The SLL of a multi-panel phased arrays is optimized by adjusting phases of sub-arrays on genetic algorithm(GA) in this ...