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Reconfigurable terahertz Vivaldi antenna based on a hybrid graphene‐metal structure
Author(s) -
Jin Jiangliang,
Cheng Zhiqun,
Chen Jin,
Zhou Tao,
Wu Chunlin,
Xu Chengjian
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22175
Subject(s) - vivaldi antenna , terahertz radiation , graphene , antenna (radio) , reconfigurable antenna , optoelectronics , materials science , antenna efficiency , slot antenna , radiation pattern , enhanced data rates for gsm evolution , electronic engineering , optics , computer science , physics , telecommunications , engineering , nanotechnology
This paper presents a reconfigurable terahertz Vivaldi antenna based on a hybrid graphene‐metal structure. The proposed antenna uses a novel tapered slot edge with hybrid graphene‐metal structure to improve the electromagnetic characteristics of classical metallic Vivaldi antennas. The results show that the proposed hybrid graphene‐metal Vivaldi antenna can be dynamically reconfigured via electric field bias, and has a low reflection coefficient. Moreover, this study demonstrates that the proposed antenna has excellent gain and radiation efficiency than that of the graphene Vivaldi antenna, and brings more possibilities to the realization and application of graphene antennas in the terahertz band, which is expected to use in terahertz wireless communication in the future.