基于NURBS曲面算法的准光模式变换器镜面系统  

Quasi-optical mode converter mirror system based on NURBS-surface

作　　者：许文件 于新华[1] 牛新建[2] 曹树杰[1] XU Wenjian YU Xinhua NIU Xinjian CAO Shujie(School of Information and Communication Engineering, Guilin University of Electronic Technology, Guilin 541004, China School of Physical Electronics , University of Electronic Science and Technology, Chengdu 610054, China)

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]电子科技大学物理电子学院,成都610054

出　　处：《桂林电子科技大学学报》2016年第6期437-441,共5页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61561013;61571078;61161002);桂林电子科技大学研究生教育创新计划(GDYCSZ201463)

摘　　要：针对迭代算法在设计准光模式变换器镜面系统时由于镜面的不光顺所造成的加工精度不高、相位补偿误差等问题,提出一种基于NURBS曲面算法的光顺镜面设计方法。运用此方法为70GHz,TE6,2-TEM00准光模式变换器设计了镜面系统。实验验证和数值计算结果表明,采用该算法所设计的镜面系统不仅表面光顺,且具有良好的传输性能。The existing iterative algorithm suffers from the low accuracy of the processed mirror surface and the error caused by the phase compensation when it is used to plan for quasi-optical mode converter mirror system.A method for constructing a fair mirror is proposed by the NURBS-surface algorithm.Then a quasi-optical mode converter for a conversion of TE6,2to TEM00 mode operating at 70 GHz is designed by the proposed algorithm.Experimental verification and calculation shows that the designed mirrors system has a smooth surface and a good transmission performance.

关 键 词：准光模式变换器 光顺 NURBS 矢量绕射理论 

分 类 号：TN928[电子电信—通信与信息系统]