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Mode selection loaded left-handed metamaterial

更新时间：2019-12-17 20:00:10 大小：2M 上传用户：18139413306查看TA发布的资源 标签：模式选择 下载积分：2分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

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We theoretically study mode selection characteristics in a left-handed metamaterial (LHM) loaded into a circular waveguide. The existent modes in the circular waveguide are closely related to the radius of the coaxially loaded LHM, and a general rule that determines whether one mode can exist in the structure is given in this paper. Therefore, the modes in the circular waveguide can be controlled by adjusting the radius of the loaded LHM. For a specific, normalized boundary radius, only one mode is capable of existing in the structure. Moreover, we discuss the variation in the cutoff frequency for different modes as a function of the LHM radius. We find that the eigenfrequencies of almost all waveguide modes increase sharply when the LHM radius approaches half the waveguide radius. These properties may lead to a wide range of applications such as controllable mode microwave generators and perfect waveguide reflectors.


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Article in AIP Advances · August 2019  
DOI: 10.1063/1.5099078  
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Mode selection characteristics in a circular  
waveguide loaded with a left-handed  
metamaterial  
Cite as: AIP Advances 9, 085033 (2019);
Submitted: 06 April 2019 . Accepted: 22 August 2019 . Published Online: 29 August 2019  
(范志强)  
(史彦超)  
(孙钧),  
(曹亦兵),  
(宋志敏),  
(吴平),  
and  
,
ARTICLES YOU MAY BE INTERESTED IN  
AIP Advances 9, 085209 (2019);
AIP Advances 9, 085327 (2019);
AIP Advances 9, 085206 (2019);
AIP Advances 9, 085033 (2019);
9, 085033  
© 2019 Author(s).  

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