用于光控相控阵的非载波再入大孔径延迟技术  

Non Carrier Re-insertion Delay Technology for Optically Controlled Phased Array Antenna with Large Aperture

作　　者：李亚明[1] 周云 韩威 LI Yaming;ZHOU Yun;HAN Wei(The 54th Research Institute of CECT,Shijiazhuang 050081,China;Military Representative Office Stationed in Shijiazhuang Region,PLA Army Beijing MilitaryRepresentative Bureau,Shijiazhuang 050081,China)

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 [2]陆军北京军代局驻石家庄地区军代室,河北石家庄050081

出　　处：《无线电工程》2019年第1期52-56,共5页Radio Engineering

基　　金：国家高技术研究发展计划("863"计划)基金资助项目(2013AA122101)

摘　　要：基于光子谐振环的波束合成网络可实现重量轻、损耗小和成本低的相控阵天线,同时可获得宽角扫描时的大瞬时带宽和无波束偏斜扫描。为了节约光电链路的带宽,设计了一种适用于光子谐振环的光控相控阵天线波束合成网络非载波再入技术。区别于双边带调制或单边带调制加滤波和载波载入技术,利用谐振环的周期特性,将光载波和边带分置于不同的周期通带内,避免了载波载入的功分器件和滤波器件的使用、大孔径时的退相干导致的信号恶化,以及载波和边带的功率不平衡。The optical resonant ring based beamformer can achieve phase-arrayed antenna with light weight,low loss and reduced cost,realizing large instantaneous bandwidth without beam squint during large angle scanning.To optimize the bandwidth requirement,a structure of non carrier re-insertion fit for beamforming network based on optical resonant ring is designed.Different from double band modulation or single band modulation with filter and carrier re-insertion,this architecture fully uses the period of the ring and locates the optical carrier and the sideband within different pass bands.In this architecture,use of the coupler and filter can be avoided.The signal deterioration caused by decoherence and power imbalance between optical carrier and sideband can be suppressed.

关 键 词：微波光子学 光子谐振环 光控相控阵天线 

分 类 号：TN256[电子电信—物理电子学]