Reconfigurable terahertz Vivaldi antenna based on a hybrid graphene‐metal structure
Jiangliang Jin, Zhiqun Cheng, Jin Chen, Tao Zhou, Chunlin Wu, Chengjian Xu
Abstract
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.