宽波束柱面共形毫米波微带天线设计  

Design of cylindrical conformal millimeter-wave microstrip antennas with broad beamwidth

作　　者：毛文辉[1] 朱旗[1] 王少永[1] 徐善驾[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系,安徽合肥230027

出　　处：《电波科学学报》2008年第2期272-275,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(63531020)

摘　　要：提出了一种利用保距变换设计宽波束圆柱共形毫米波微带天线的方法,并利用保角变换设计了该天线的馈线。作为实例设计了一个宽波束柱面共形毫米波微带天线单元以及一个由八个该天线单元组成的天线线阵,ANSOFT HFSS软件的模拟结果证明了该设计方法的可靠性。与传统的微带天线和阵列相比,本文提出的微带天线单元具有较大的波束宽度,由其构成的线阵在大角度扫描时,具有低副瓣以及较宽的周向波束。A cylindrical conformal millimeter-wave microstrip antenna with broad beamwidth is designed by means of isotropic transformation, meanwhile, its microstrip feed line is designed by using conformal transformation. Taking a single ra- diation element and an array of 8 elements as examples of antennas designed, the simulation results with ANSOFT HFSS prove the validity of the design method. Compared to traditional microstrip antenna, the presented antenna possesses broader beamwidth, low sidelobe and broad circumferential beamwidth as working at a large scanning angle.

关 键 词：毫米波 微带天线 保距变换 保角变换 宽波束 特性阻抗 

分 类 号：TN823[电子电信—信息与通信工程]