Using the ADI-FDTD Method to Simulate Graphene-Based FSS at Terahertz Frequency

被引：43
作者：
Chen, Juan [1 ,2 ]
Hao, Guocheng [1 ,3 ]
Liu, Qing-Huo [1 ]
机构：
[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
[2] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China
[3] China Univ Geosci, Fac Mech & Elect Informat, Wuhan 430074, Peoples R China
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2017年 / 59卷 / 04期
关键词：
Alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method; frequency selective surface (FSS); graphene; COMPUTATIONAL ELECTROMAGNETICS CEM; SELECTIVE VALIDATION FSV; PERFECTLY MATCHED LAYER;
D O I：
10.1109/TEMC.2017.2650226
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：
The alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method is modified to simulate a graphene-based frequency selective surface. By using the auxiliary differential equation and Pade fitting method, both the interband and intraband conductivity of the graphene are incorporated into the ADI-FDTD method. The ADI-FDTD method has excellent computational accuracy and its computational efficiency is considerably improved from that of the conventional FDTD method. By using the proposed ADI-FDTD method, a graphene-based frequency selective surface is simulated and analyzed at terahertz frequency. The numerical results show that the graphene can achieve a tunable frequency selective surface through controlling its chemical potential, and the interband conductivity of the graphene has important effect on the performance of the frequency selective surface.
引用
收藏
页码：1218 / 1223
页数：6
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