A Flat Dual-Polarized Millimeter-Wave Luneburg Lens Antenna Using Transformation Optics with Reduced Anisotropy and Impedance Mismatch
<|reference_start|>A Flat Dual-Polarized Millimeter-Wave Luneburg Lens Antenna Using Transformation Optics with Reduced Anisotropy and Impedance Mismatch: In this paper, a compact wideband dual-polarized Luneburg lens antenna (LLA) with reduced anisotropy and improved impedance matching is proposed in Ka band with a wide 2D beamscanning capability. Based on transformation optics, the spherical Luneburg lens is compressed into a cylindrical one, while the merits of high gain, broad band, wide scanning, and free polarization are preserved. A trigonometric function is employed to the material property of the flattened Luneburg lens with reduced anisotropy, thus effectively alleviates the strong reflection, the high sidelobes and back radiation with a free cost on the antenna weight and volume. Furthermore, a light thin wideband 7-by-1 metasurface phased array is studied as the primary feed for the LLA. The proposed metantenna, shorted for metamaterial-based antenna, has a high potential for B5G, future wireless communication and radar sensing as an onboard system.<|reference_end|>
@article{su2024a,
    title={A Flat Dual-Polarized Millimeter-Wave Luneburg Lens Antenna Using
  Transformation Optics with Reduced Anisotropy and Impedance Mismatch},
    author={Yuanyan Su, Teng Li, Wei Hong, Zhi Ning Chen and Anja K. Skrivervik},
    journal={arXiv preprint arXiv:2405.11935},
    year={2024},
    archivePrefix={arXiv},
    eprint={2405.11935},
    primaryClass={eess.SY cs.SY physics.app-ph physics.optics}
}