Input Impedance and Efficiency Analysis of Graphene-Based Plasmonic Nanoantenna Using Theory of Characteristic Modes

被引：9
|
作者：
Zhang, Bin [1 ,2 ]
Zhang, Jingwei [1 ]
Liu, Chengguo [1 ]
Wu, Zhi P. [1 ,2 ]
机构：
[1] Wuhan Univ Technol, Hubei Engn Res Ctr RF Microwave Technol & Applica, Wuhan 430070, Hubei, Peoples R China
[2] Wuhan Univ Technol, Sch Informat Engn, Wuhan 430070, Hubei, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 10期
关键词：
Impedance; Graphene; Plasmons; Geometry; Admittance; Feeds; Characteristic mode (CM); graphene; input impedance; nanoantenna; plasmonic; ANTENNAS;
D O I：
10.1109/LAWP.2019.2936654
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, the input impedance and radiation efficiency analysis of graphene-based plasmonic nanoantenna (GPNA) is presented utilizing the theory of characteristic mode (CM). The total input impedance and radiation efficiency values at various feed positions are accurately and efficiently obtained as the superposition of natural CMs. Furthermore, the modal input impedances and the radiation efficiencies are also provided for in-depth understanding of the GPNA. This letter provides a new perspective to analyze the GPNA and can be easily applied to the design and optimization of other lossy plasmonic antennas with complicated geometries.
引用
收藏
页码：2031 / 2035
页数：5
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