• 文献标题:   A Sinusoidally-Modulated Leaky-Wave Antenna With Gapped Graphene Ribbons
  • 文献类型:   Article
  • 作  者:   CHENG Y, WU LS, TANG M, ZHANG YP, MAO JF
  • 作者关键词:   graphene, leakywave antenna, reconfigurability, terahertz thz
  • 出版物名称:   IEEE ANTENNAS WIRELESS PROPAGATION LETTERS
  • ISSN:   1536-1225 EI 1548-5757
  • 通讯作者地址:   Shanghai Jiao Tong Univ
  • 被引频次:   4
  • DOI:   10.1109/LAWP.2017.2757240
  • 出版年:   2017

▎ 摘  要

This letter proposes a new sinusoidally-modulated graphene leaky-wave antenna for beam scanning at terahertz (THz) with only one biasing voltage required. The antenna consists of a number of dc-gated graphene ribbons on a grounded dielectric substrate. The graphene ribbons are nonuniformly gapped to realize a sinusoidally-modulated reactance surface to support the leaky-wave operation. The analysis shows that the beam angle and leakage rate can be controlled by the gate voltage, indicating a good reconfigurability. The simulated and analytical results agree well with each other that not only validate the design method but also show that the new antenna is promising for graphene-based THz wireless systems.