@inproceedings{e3f6f30168184123862f56f9907a15aa,
title = "A Metasurface Based High-Gain Dual-polarized Flat Luneburg Lens Antenna",
abstract = "A dual-polarized flat Luneburg lens antenna (FLLA) is designed using reflection cancellation method to improve its gain and bandwidth. First, the performance of conventional Luneburg lens (LL) and flat LL is compared to show that the increased permittivity in the flat LL degenerates the gain due to the severe reflection. During the implementation of flat LL, the reflection cancellation method is applied by adjusting the airgap between layers, so that a high-gain performance is achieved over a wide bandwidth. The designed FLLA is exemplified over 25-35 GHz, and fed by a dual-polarized patch antenna. The measurements show that the impedance bandwidth (|S11| ≤ -10 dB) is 27.6-32.7 GHz, and its peak gain reaches 18.8 dBi.",
keywords = "dual polarization, flat Luneburg lens, metasurface, reflection cancellation",
author = "Yinsen Luo and Ran Ji and Yan Zhang",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 15th International Conference on Microwave and Millimeter Wave Technology, ICMMT 2023 ; Conference date: 14-05-2023 Through 17-05-2023",
year = "2023",
doi = "10.1109/ICMMT58241.2023.10277662",
language = "英语",
series = "2023 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2023 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2023 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2023 - Proceedings",
address = "美国",
}