@inproceedings{3b47e6320360438db808fbd3c0ecd452,
title = "A Ka-band Metallic Luneburg Lens Antenna Based on Bed of Nails with Continuous Gradient",
abstract = "In this paper, a Ka-band fully metallic surface-wave Luneburg lens antenna is proposed. The antenna is composed of a metallic slow wave lens based on bed of nails with continuous gradient and nine standard WR-28 rectangular waveguides. The corrugated slots are designed at the edge of the lens for the modification of the beam direction in E-plane. The heights of nails are designed to match the equivalent refractive index distribution of Luneburg lens. The full-wave simulated results show reflection coefficients below -13.7 dB and a beam scanning range of ±60° at the band from 26.5 to 30 GHz. The sidelobe levels lower than -10 dB and maximum gain of 18.2 dBi are obtained.",
author = "Shaoyuan Zhu and Hongda Lu and Boyu Nie and Yong Liu and Xin Lv",
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/ICMMT58241.2023.10277051",
language = "English",
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 = "United States",
}