A highly directive graphene antenna embedded inside a Fabry-Perot cavity in terahertz regime

被引：7

作者：

Roshanaei, Majid ^{[1
]}

Karami, Hamidreza ^{[1
]}

Dehkhoda, Parisa ^{[2
]}

Esfahani, Hamid ^{[3
]}

Dabir, Fatemeh ^{[4
]}

机构：

[1] Bu Ali Sina Univ, Dept Elect Engn, Hamadan, Iran

[2] Amirkabir Univ Technol, Dept Elect Engn, Tehran, Iran

[3] Bu Ali Sina Univ, Dept Mat Engn, Hamadan, Iran

[4] Niroo Res Inst, Nonmetall Mat Res Dept, Tehran, Iran

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2018年 / 117卷

关键词：

Graphene; Highly directional antenna; Terahertz antenna; Fabry Perot cavity; PATCH ANTENNA; NANO-ANTENNA;

D O I：

10.1016/j.spmi.2018.03.039

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, a highly directive nano-thickness graphene-based antenna is introduced in the terahertz frequency band. The antenna is a graphene patch dipole which is placed between two Bragg mirrors called Fabry-Perot cavity. Tunability of the graphene's conductivity makes it possible to excite the desired resonances of the cavity. Here, first, a single resonant antenna is introduced at 5 THz with an enhanced gain from 2.11 dBi to 12.8 dBi with a beamwidth of 22.7. Then, a triple resonant antenna at 4.7, 5 and 5.3 THz is presented with respective gains of 7.97, 11.9 and 8.52 dBi. Finally, the effect of dimensions and number of the dielectric layers of the cavity are studied in order to further increase in directivity. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：356 / 363

页数：8

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