Graphene-Based Dynamically Tunable Attenuator on Spoof Surface Plasmon Polaritons Waveguide

被引：16
|
作者：
Tian, Dou [1 ,2 ]
Kianinejad, Amin [3 ]
Zhang, Anxue [4 ]
Chen, Zhi Ning [5 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117583, Singapore
[3] MEDs Technol Pte Ltd, Singapore 569876, Singapore
[4] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
[5] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117583, Singapore
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2019年 / 29卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Graphene; spoof surface plasmon polaritons (SSPPs); tunable attenuator; waveguide;
D O I：
10.1109/LMWC.2019.2913964
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：
A dynamically tunable attenuator is proposed by integrating two graphene sandwich structures (GSSs) into a spoof surface plasmon polaritons (SSPPs) waveguide. The attenuator is formed by locating two GSSs symmetrically on both sides of the SSPP waveguide. Both the surface impedance of GSSs and the attenuation of the attenuator are tunable by changing the bias voltage applied to the graphene sheets. The transmission line theory is employed to model the proposed SSPP waveguide and attenuator. Measurement shows two orders of magnitude attenuation range with bias voltage changing from 0 to 4 V. In addition, the proposed SSPPs attenuator achieves 2.5-7.2 times attenuation/lambda of GSS compared with the reference works.
引用
收藏
页码：388 / 390
页数：3
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