@inproceedings{38ec13a7a62344628a06ed791852c5d4,
title = "Design of a Flat Gain Broadband Metasurface Antennas Using Characteristic Mode Analysis",
abstract = "This paper presents a flat gain broadband metasurface antenna with a central frequency of 6.53 GHz. It consists of two substrate layers and three metal layers. The upper layer of the antenna including an array of 3x3 squared patches, which constitutes a metasurface radiator. It is fed by a microstrip line at the bottom through an ellipse slot etched on the middle ground plane. By loading four parasitic patches on the upper layer, the impedance matching of the antenna is improved. The bandwidth can then be broadened. Then two slots along x-axis are loading in part of the unit cells of the metasurface for improving the radiation performance of the proposed antenna using characteristic mode analysis (CMA). The proposed antenna realizes 56% (4.7 GHz-8.36 GHz) impedance bandwidth for |S11| ≤-10dB and peak gain of 10 dBi.",
keywords = "broadband, characteristic modes analysis (CMA), metasurface, parasitic patches",
author = "Caixia Feng and Zi Yang and Hailong Liu and Yaru Guo and Xin Xu and Lijuan Dong and Tianhua Meng and Weidong Hu",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023 ; Conference date: 10-11-2023 Through 13-11-2023",
year = "2023",
doi = "10.1109/CSRSWTC60855.2023.10427420",
language = "English",
series = "Proceedings - 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "Proceedings - 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023",
address = "United States",
}