典型文献
Mode Purity Improvement of High-Order Vortex Waves
文献摘要：
Vortex electromagnetic waves can carry orbital angular momentum(OAM)modes of different or-der number,which are mutually orthogonal.Communica-tion technologies multiplexing different OAM topological charges have attracted extensive attention in improving spectrum utilization.In this regard,the efficient genera-tion of OAM modes becomes a key issue.However,it is difficult to generate high-order OAM modes by using a microstrip antenna with a simple structure,and the mode purity is usually not high.Methodologically,the OAM wave of a microstrip antenna is mostly achieved by syn-thesizing degenerate eigenmodes.In this paper,combined with eigenmode analysis,the construction of high-order and high-purity OAM mode microstrip antennas is car-ried out from the perspectives of radiating element,ground plane,and structural symmetry.For a regular hexagonal patch antenna of the 4th-order OAM mode,the mode purity is improved from about 40％to over 80％by removing the inner conductor of the patch layer,us-ing a circular ground plane,and adding lug patches on the outside.This method of improving mode purity through the analysis of mode significance and character-istic current distribution also has guiding significance for the design of other high-order OAM mode patch anten-nas.
文献关键词：
中图分类号：
作者姓名：
LIN Jie;YANG Guang;LI Weiwen;AN Cheng
作者机构：
Department of Electronic Engineering,Xiamen University,Xiamen 361005,China
文献出处：
引用格式：
[1]LIN Jie;YANG Guang;LI Weiwen;AN Cheng-.Mode Purity Improvement of High-Order Vortex Waves)[J].电子学报（英文）,2022(06):1146-1154
A类：
Communica,lug,anten
B类：
Mode,Purity,Improvement,High,Order,Vortex,Waves,electromagnetic,waves,carry,orbital,angular,momentum,OAM,different,number,which,are,mutually,orthogonal,technologies,multiplexing,topological,charges,have,attracted,extensive,attention,improving,spectrum,utilization,In,this,regard,efficient,becomes,key,issue,However,difficult,high,order,by,using,microstrip,simple,structure,purity,usually,not,Methodologically,mostly,achieved,syn,thesizing,degenerate,eigenmodes,paper,combined,analysis,construction,antennas,ried,from,perspectives,radiating,element,ground,plane,structural,symmetry,For,regular,hexagonal,4th,improved,about,over,removing,inner,conductor,layer,circular,adding,patches,outside,This,method,through,significance,character,istic,current,distribution,also,has,guiding,design,other
AB值：
0.540456
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