一种宽带反射型极化旋转器  

A Broadband Reflective Polarization Rotator

作　　者：刘小明 齐涛[1] 甘露 LIU Xiao-ming;QI Tao;GAN Lu(School of Physics and Electronic Information,Anhui Normal University,Wuhu 241002,China;School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]安徽师范大学物理与电子信息学院,芜湖241002 [2]北京邮电大学电子工程学院,北京100876

出　　处：《北京邮电大学学报》2021年第6期20-25,32,共7页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61871003);CEMEE国家重点实验室开放课题(CEMEE2021Z0201B)。

摘　　要：为满足极化旋转器件在通信、雷达以及遥感领域的应用,基于周期性结构的设计方法,采用斜排列的正方形裂环和正方形贴片单元结构,设计了一款覆盖频率为22.5~50 GHz的反射型极化旋转器,该器件的-3 dB相对带宽达到了75.86%.极化转换效率在24~47.8 GHz内达到了0.8,角度稳定性达到了30°.测试结果与仿真结果具有较好的吻合度.To promote the application of polarization rotational devices in the fields of communication,radar and remote sensing,a polarization rotator based on periodical structure is designed.This design uses the skewed array consisting of split rectangular ring and rectangular patch,so that a reflective polarization rotator that can cover the frequency range of 22.5~50 GHz is realized.This device provides-3 dB fractional bandwidth up to 75.86%.The polarization conversion ratio reached 0.8 in the range of 24~47.8 GHz over an angular range of 30°.The measured results demonstrate satisfactory agreement with simulation.

关 键 词：极化旋转器 周期性结构 宽带 反射型 

分 类 号：TN911.22[电子电信—通信与信息系统]