一种由Rotman透镜实现的多波束天线  

A Multi-Beam Antenna Based on Rotman Lens

作　　者：李超[1] 马汉清[1] 闫云涛[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2013年第1期82-86,共5页Fire Control Radar Technology

摘　　要：本文研究了Rotman透镜各主要设计参数对于最终透镜性能的影响。提出了一种端口设计思路,并且比较了不同端口设计方案下,能量传输效率以及出口端相位分布,进而给出了一个中心频率7.2GHz微带形式的5端口输入7端口输出Rotman透镜的设计,并最终建立了多波束天线阵列。仿真和实物测试验证了这一方法的准确性。Impact of design parameters of a Rotman lens on its final performance is studied. A new port design con- cept is presented; energy transfers efficiency and phase distribution of output ports obtained by adopting different port designs is compared. A design with 5-input and 7-output micro-strip Rotman Lens operating at center frequen- cy of 7.2GHz is proposed ; and a multi-beam antenna based on this Rotman lens is achieved. Simulation and exper- imental results both verify the correctness of this method.

关 键 词：多波束天线 ROTMAN透镜 端口指向 相位调节 

分 类 号：TN82[电子电信—信息与通信工程]