Dual-band beam steering THz antenna using active frequency selective surface based on graphene

IF 1.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY EPJ Applied Metamaterials Pub Date : 2021-01-01 DOI:10.1051/EPJAM/2021004
Yao-Jia Yang, Bian Wu, Yutong Zhao, Chi-Fan
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引用次数: 6

Abstract

A dual-band independently beam steering THz antenna is presented, which is composed of a broadband omnidirectional monopole source antenna surrounded by six hexagonal active frequency selective surface (AFSS) screens with switchable filtering response in two bands. By controlling the chemical potential from 0 eV to 0.5 eV, the AFSS screen can achieve the conversion between high transmission (ON state) and almost total reflection (OFF state) at two frequency ranges independently. Therefore, the radiation beams of the THz antenna in two bands can be steered from 360° large angle scanning and omnidirectional radiation with flexible combinations.
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基于石墨烯有源频率选择表面的双频波束导向太赫兹天线
提出了一种双频独立波束导向太赫兹天线，该天线由一个宽带全向单极源天线组成，周围环绕六个六边形有源选频面(AFSS)屏，在两个波段具有可切换的滤波响应。通过控制化学势从0 eV到0.5 eV, AFSS屏可以在两个频率范围内独立实现高透射(ON)和几乎全反射(OFF)的转换。因此，太赫兹天线两个波段的辐射波束可以实现360°大角度扫描和全向辐射的灵活组合。
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来源期刊
EPJ Applied Metamaterials
EPJ Applied Metamaterials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.10
自引率
6.20%
发文量
16
审稿时长
8 weeks
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