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Direct modulation of microwave by visible light based on graphene microstrip patch antenna
Zeng, Mengting1,2,3; Xia, Liangping2; Zhang, Man2; Tu, Hong2; Gao, Fuhua1; Yin, Shaoyun3; Cui, Hong-Liang2; Du, Chunlei2
2021-11-17
摘要A method for modulating microwave directly by visible light based on a graphene microstrip patch antenna is proposed. In the antenna, the microwave radiation is modulated with the variation of visible light intensity when both are interacting with the graphene layer. Simulation results indicate that the S-11 coefficient of the microwave radiation can change by 20 dB if the Fermi level of graphene varies from 0.1 eV to 0.5 eV when it is radiated by the antenna. With normal incidence, the experimentally measured microwave modulation depth of the S-11 coefficient is 1.3 dB when the intensity of the modulation light is 100 mW at the wavelength of 532 nm. The result indicates that the graphene microstrip patch antenna is capable of converting optical intensity signal to microwave intensity signal directly. (C) 2021 Elsevier B.V. All rights reserved.
关键词Graphene Modulation Light waves Microwave Microstrip patch antenna
DOI10.1016/j.physleta.2021.127676
发表期刊PHYSICS LETTERS A
ISSN0375-9601
卷号416页码:5
通讯作者Xia, Liangping(xialp@yznu.edu.cn) ; Gao, Fuhua(gaofuhua@scu.edu.cn) ; Yin, Shaoyun(ysy@cigit.ac.cn) ; Du, Chunlei(cldu@yznu.edu.cn)
收录类别SCI
WOS记录号WOS:000707722200001
语种英语