宽带宽角扫描罗特曼透镜设计与实现  

Design and Implementation of Wideband Rotman Lens with Wide-angle Scanning

作　　者：徐立[1] 王烨 连起 XU Li;WANG Ye;LIAN Qi(Equipment Department of the PLA,Chengdu 610036,China)

机构地区：[1]中国人民解放军海军装备部,四川成都610036

出　　处：《电子质量》2024年第7期59-64,共6页Electronics Quality

摘　　要：提出了一种紧凑型微带型宽带宽角扫描的罗特曼透镜,其基于高介电常数基材和不等化端口结构设计。为验证设计的合理性,基于低频宽带需求,设计了一款罗特曼透镜,其规模为13×18。仿真和实测结果均表明,所设计的透镜能够覆盖宽频带0.8~2 GHz,相对带宽达86%,能够实现-45~45°宽角内扫描和全频带总插损优于6 dB;仿真与实测结果具有较高的吻合度。A compact microstrip Rotman lens with wideband wide-angle scanning ability based on high permittivity substrate and different sizes of ports are presented.In order to verify the rationality of the design,a Rotman lens with a size of 13×18 is designed based on low frequency wideband demand.Simulation and measurement results indicate that the designed Rotman lens can realize bandwidth from 0.8 GHz to 2 GHz with a relative bandwidth of 86%and achieve the ability of wide-angle scanning from-45°to 45°and total insertion losses better than 6 dB throughout the whole band.Meanwhile,the simulation results are in good agreement with the measurement results.

关 键 词：罗特曼透镜 宽带 宽角扫描 高介电常数 总插损 

分 类 号：TP391.99[自动化与计算机技术—计算机应用技术]