基于光子谐振环的波束形成网络研究  

Study on Beamforming Network Based on Optical Ring-resonator

作　　者：李亚明[1] 李晶[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2016年第7期5-7,97,共4页Radio Engineering

基　　金：国家自然科学基金资助项目(61308061)

摘　　要：现代相控阵雷达对小重量、低损耗和低成本持续要求,同时获得宽角扫描时的大即时带宽和无波束偏斜扫描,针对上述要求,对基于微环谐振腔的连续可调的时间延迟网络进行了研究。为了实现最少延迟单元,研究了二进制树形拓扑结构和单边带抑制强度直接调制、双周期群延迟响应直接探测机制。作为特例,对于8单元的一维线阵进行了具体设计。设计结果显示,该网络具有显著的大带宽2 GHz,最大延迟时间400 ps,延迟抖动小于0.15倍的环周延迟。The modern phase-arrayed radar is required to have such characteristics as light weight, low loss, reduced cost as well as free beam squinting and large instantaneous bandwidth when scanning large angle.In view of these requirements,this paper studies a time continuously tunable beamforming network based on micro-ring resonator.For minimum time delay element,the binary tree topology structure, single sideband suppression intensity direct modulation and dual-period group delay response direct detection mechanisms are discussed.As an example,the 8-element one-dimensional linear array is designed in detail.The design results show that this network has large bandwidth of 2 GHz and maximum time delay of 400 ps with delay jitter of less than 0.15 times of FSR.

关 键 词：微波光子学 集成光学 光学谐振环 真时间延迟 

分 类 号：TN256[电子电信—物理电子学]