宽带相控阵天线子阵延时随机配置优化研究  

A Study on Randomizing Time-delaying of Sub-array in Wideband Phased Arrays

作　　者：张金平[1,2] 任波[1,2] 

机构地区：[1]南京电子技术研究所,南京210039 [2]天线与微波技术重点实验室,南京210039

出　　处：《现代雷达》2014年第11期14-17,共4页Modern Radar

摘　　要：针对宽带相控阵天线中子阵级配置实时延时器的拓扑结构,提出了一种对子阵延时量化误差引起的天线波束指向偏差的修正方案。该方案通过随机配置延时修正量,并以波束指向偏差及增益下降为评价标准,优化各实时延时器延时修正量化参数,从而达到修正天线带内指向色散的目的。该方案在获得较好波束校正性能的同时,一定程度上简化了天线系统的整体复杂度,具有良好的工程可实现性。Based on the layered scheme of real-time delayers applied in the subarray of the wideband phased array,a method to optimize quantization errors of real-time delayers is proposed in this paper.Through randomizing time-delaying of the delayers in the subarry,the beam pointing errors can be reduced efficiently.Compared with the traditional method,the excellent correction performance of beam-pointing excursion is obtained with little gain losses and more compact antenna system in realization.

关 键 词：宽带相控阵天线 实时延时器 波束扫描 量化 

分 类 号：TN821.8[电子电信—信息与通信工程]